Patent application number | Description | Published |
20080207353 | Highly-Neutralized Acid Polymers and Their Use in Golf Balls - The present invention is directed to a golf ball having at least one layer which includes a polymer composition containing at least 50 wt % of an acid polymer and at least 0.5 wt % of a polylactic acid, wherein the weight percentages are based on the total polymeric weight of the polymer composition. At least 70% of the acid groups of the acid polymer are neutralized by a cation source or a metal salt thereof. | 08-28-2008 |
20080220899 | MULTI-LAYER GOLF BALL HAVING IMPROVED INTER-LAYER ADHESION VIA INDUCTION HEATING - This invention is directed to golf balls having at least two adjacent layers, wherein a coating layer of metal materials is on at least one surface of the adjacent layers. The adhesion of the adjacent layer is improved by induction heating. The invention also is directed to ink solution for golf equipment comprising metal materials that can improve adhesion of the ink to the golf equipment. | 09-11-2008 |
20080220902 | Golf Balls Having a Low Modulus HNP Layer and a High Modulus HNP Layer - The present invention is directed to golf balls comprising a fluid-filled center surrounded by an outer core, wherein the outer core comprises a layer formed from a low modulus HNP composition and a layer formed from a high modulus HNP composition. The present invention is not limited by which outer core layer is formed from the low modulus HNP composition and which layer is formed from the high modulus HNP composition, so long as both layers are present in the outer core of the golf ball. Low modulus HNP compositions of the present invention comprise a highly neutralized acid copolymer having a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention comprise a highly neutralized acid copolymer having a modulus of from 25,000 psi to 150,000 psi. | 09-11-2008 |
20080220903 | Golf Balls Having Two or More Core Layers Formed From HNP Compositions - The present invention is directed to golf balls comprising a fluid-filled center surrounded by an outer core, wherein the outer core comprises a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. The present invention is not limited by which outer core layer is formed from the relatively soft HNP composition and which layer is formed from the relatively hard HNP composition, so long as both layers are present in the outer core of the golf ball. Relatively soft HNP compositions of the present invention have a Shore D hardness of 55 or less and comprise a highly neutralized acid copolymer. Relatively hard HNP compositions of the present invention have a Shore D hardness of 45 or greater and comprise a highly neutralized acid copolymer. The material hardness of the relatively soft HNP composition is less than the material hardness of the relatively hard HNP composition. | 09-11-2008 |
20080220904 | Golf Balls Having at Least Two Core Layers Formed From HNP Compositions - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 09-11-2008 |
20080220905 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of a layer formed from a low modulus HNP composition and a layer formed from a high modulus HNP composition. The low modulus HNP composition has a material hardness of 55 Shore D or less and comprises a highly neutralized ethylene/(meth)acrylic acid/alkyl(meth)acrylate copolymer. The high modulus HNP composition has a material hardness of 45 Shore D or greater and comprises a highly neutralized ethylene/(meth)acrylic acid copolymer. The cover preferably consists of a single cover layer. | 09-11-2008 |
20080220906 | Golf Balls Having at Least Two Core Layers Formed From HNP Compositions - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 09-11-2008 |
20080227567 | COMPOSITIONS FOR USE IN GOLF BALLS - A golf ball comprises a core, an outer cover layer, and, optionally, an intermediate layer disposed between the core and the outer cover layer. The outer cover layer may comprise a polyurethane or polyurea composition. At least one portion of the golf ball comprises a composition that enhances physical properties and/or performance characteristics (e.g., coefficient of restitution) of the golf ball. Preferably, the coefficient of restitution of the core is 0.8 or greater. | 09-18-2008 |
20080227568 | Golf Balls Having a Low Modulus HNP Layer and a High Modulus HNP Layer - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of a center having a center hardness of 50 Shore C or greater and formed from a low modulus HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a high modulus HNP composition. Low modulus HNP compositions of the present invention have a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention have a modulus of from 25,000 psi to 150,000 psi. The modulus of the highly neutralized copolymer of the low modulus HNP is at least 10% less than the modulus of the highly neutralized copolymer of the high modulus HNP composition. The cover consists of an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 09-18-2008 |
20080234068 | Functionalized, Crosslinked, Rubber Nanoparticles for Use in Golf Ball Cores - A golf ball including a core formed from a polymer blend comprising a microgel having a T | 09-25-2008 |
20080234069 | Functionalized, Crosslinked, Rubber Nanoparticles for Use in Golf Ball Castable Thermoset Layers - A golf ball including a core formed from a thermoset rubber material; and an outer cover layer having a water vapor transmission rate and formed from a polymer blend including a microgel having a T | 09-25-2008 |
20080234070 | Functionalized, Crosslinked, Rubber Nanoparticles for Use in Golf Ball Intermediate Layers - A golf ball including a core; an outer cover layer; and an inner cover layer disposed between the core and outer cover layer, the inner cover layer being formed from a polymer blend including a microgel having a Tg of 20° C. or greater formed from a monomer, a co-monomer, and an initiator; and a thermoplastic material. | 09-25-2008 |
20080234071 | GOLF BALL WITH DIMPLES HAVING CONSTANT DEPTH - A golf ball having an improved dimple pattern is disclosed. The dimples may have a regular or irregular polygonal perimeter, an undimpled land surface and a depression therein. The perimeter may alternatively comprise a number of linear sides and at least one curved side. At least a portion of the bottom of the depression is convex such that its curvature is substantially identical to the curvature of the land surface making the depth of that portion constant along its surface relative to the land surface. The depression may further comprise a sub-depression. Alternatively, the depression may further comprise a projection. Additionally, the depression may have a polygonal or circular perimeter. | 09-25-2008 |
20080242448 | Golf Balls Having a Low Modulus HNP Layer and a High Modulus HNP Layer - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a low modulus HNP composition and at least one layer formed from a high modulus HNP composition. | 10-02-2008 |
20080242449 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. The multi-layer core includes at least one layer formed from a low modulus HNP composition and at least one layer formed from a high modulus HNP composition. | 10-02-2008 |
20080248898 | GOLF BALL HAVING VISUALLY ENHANCED NON-UNIFORM THICKNESS INTERMEDIATE LAYER - A golf ball with at least one core layer, at least one intermediate layer, and at least one cover layer. Any combination of the layers of the golf ball may feature a visually enhancing means. The cover layer is preferably translucent and provides a view to the intermediate layer and/or the core layer. The intermediate layer has a non-uniform thickness. The core may comprise a non-spherical insert. The intermediate layer and the core layer may affect the spin rate of the golf ball. The intermediate layer may be used to indicate the alignment of the golf ball. | 10-09-2008 |
20080261723 | Golf Balls Having Two Core Layers Formed From HNP Compositions - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of a center having a center hardness of 50 Shore C or greater and formed from a first HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a second HNP composition. The first HNP composition has a material hardness of 55 Shore D or less and comprises a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer. The second HNP composition has a material hardness of 45 Shore D or greater and comprises a highly neutralized ethylene/(meth)acrylic acid copolymer. The material hardness of the first HNP composition is less than the material hardness of the second HNP composition. The cover consists of an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 10-23-2008 |
20080261724 | GOLF BALLS HAVING TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. The relatively soft HNP composition has a material hardness of 55 Shore D or less and comprises a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer. The relatively hard HNP composition has a material hardness of 45 Shore D or greater and comprises a highly neutralized ethylene/(meth)acrylic acid copolymer. The cover preferably consists of a single cover layer. | 10-23-2008 |
20080318711 | Golf Balls having a Low Modulus HNP Layer and a High Modulus HNP Layer - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of an inner core layer formed from a high modulus HNP composition and an outer core layer formed from a low modulus HNP composition. The outer core layer has an outer surface hardness less than the outer surface hardness of the inner core layer. | 12-25-2008 |
20090005194 | Golf Balls having Two or More Core Layers Formed from HNP Compositions - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of an inner core layer formed from a relatively hard HNP composition and an outer core layer formed from a relatively soft HNP composition. The outer core layer has an outer surface hardness less than the outer surface hardness of the inner core layer. | 01-01-2009 |
20090011855 | Golf Ball Core with Soft Outer Transition Volume and Negative Hardness Gradient - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 01-08-2009 |
20090011857 | Golf Ball with Negative Hardness Gradient Core - A golf ball including an inner core having a first outer surface and a geometric center, the inner core having a hardness of 35 to 55 Shore C; an outer core layer adjacent the inner core having a second outer surface and an inner surface, the outer core layer having a hardness of 55 to 90 Shore C; and a cover layer; wherein the hardness of the first outer surface is substantially the same as or lower than the hardness of the geometric center to define a first negative hardness gradient, and the hardness of the second outer surface is substantially the same as or lower than the hardness of the inner surface to define a second negative hardness gradient. | 01-08-2009 |
20090011859 | Negative Hardness Gradient Inner Core for Dual Core Golf Ball - A golf ball includes an inner core having a first outer surface and a geometric center and is formed from a first substantially homogenous formulation throughout such that the inner core has a hardness of 30 Shore C to 45 Shore C. An outer core layer is formed around the inner core and has a second outer surface and an inner surface and is formed from a second substantially homogenous formulation throughout such that the outer core layer has a hardness of 60 Shore C to 95 Shore C. A cover layer is formed around the outer core layer. The hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient, and the hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient. | 01-08-2009 |
20090011860 | Highly-Neutralized Thermoplastic Copolymer Center for Improved Multi-Layer Core Golf Ball - A golf ball includes an inner core layer formed from a first rubber composition having a first Shore D hardness; an intermediate core layer formed from a second rubber composition; and a thermoplastic outer core layer having a second Shore D hardness. The outer core layer includes a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer. An inner cover layer surrounds the multi-layer core and an outer cover layer is disposed about the inner cover layer. The inner core layer hardness differs from the outer core hardness by at least 10 points. | 01-08-2009 |
20090011863 | Negative Hardness Gradient Inner Core for Dual Core Golf Ball - A golf ball includes an inner core having an outer surface and a geometric center and being formed from a first substantially homogenous composition such that the inner core has a hardness of 45 Shore C to 65 Shore C. An intermediate layer is disposed about the inner core and has an outer surface and an inner surface and is formed from a thermoplastic composition comprising an ionomer whose acid groups are 100% neutralized such that the intermediate layer has a hardness of 20 Shore D to 80 Shore D. A cover layer is disposed about the outer core layer. The inner core outer surface hardness is lower than the hardness of the geometric center to define a negative hardness gradient, and the hardness of the outer surface of the intermediate layer is the same as the hardness of the inner surface to define a zero hardness gradient. | 01-08-2009 |
20090011865 | Multi-Layer Golf Ball - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. The Shore C hardness of the outer core layer's outer surface is greater than the material hardness of the inner cover layer, and is preferably 75 Shore C or greater. | 01-08-2009 |
20090011866 | Multi-Layer Core Golf Ball Having Opposing Hardness Gradient with Steep Gradient Inner Core Layer - A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous rubber composition, the rubber composition comprising a base rubber and a resorcinol such that the geometric center has a hardness of 40 to 60 Shore C and the outer surface has a hardness of 70 to 95 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 50 to 75 Shore C, an inner surface having a hardness of 51 to 76 Shore C, and is formed from a substantially homogenous composition. A cover layer is disposed about the outer core layer. The hardness of the inner core outer surface is greater than the hardness of the geometric center to define a positive hardness gradient of greater than 20 Shore C, and the hardness of the outer core outer surface is lower than the hardness of its inner surface to define a negative hardness gradient of −1 to −5 Shore C. | 01-08-2009 |
20090011867 | Multi-Layer Core Golf Ball Having Opposing Hardness Gradient with Steep Gradient Outer Core Layer - A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous composition such that the geometric center has a hardness of 51 to 76 Shore C and the outer surface has a hardness of 50 to 75 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 85 to 98 Shore C and an inner surface having a hardness of 68 to 78 Shore C and being formed from a second substantially homogenous rubber composition, the rubber composition comprising a base rubber and a resorcinol. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of greater than 15 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −5 Shore C. | 01-08-2009 |
20090017939 | Multi-Layer Golf Ball - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. The Shore C hardness of the outer core layer's outer surface is greater than the material hardness of the inner cover layer, and is preferably 75 Shore C or greater. | 01-15-2009 |
20090017940 | Multi-Layer Golf Ball - Golf balls consisting of a dual core and a single layer cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. The Shore C hardness of the outer core layer's outer surface is preferably greater than the material hardness of the inner cover layer, and more preferably is 56 Shore D or greater. | 01-15-2009 |
20090017941 | GOLF BALL SURFACE PATTERNS COMPRISING MULTIPLE CHANNELS - A golf ball having an improved surface pattern is disclosed. The golf ball has one or more channels or ridges on its surface. These ridges or channels may decrease drag, or may increase lift, and may increase or decrease flight symmetry. These channels or ridges may be linear, or may be curved, and may or may not fully circumscribe the golf ball. These channels or ridges may also be combined with traditional or non-traditional dimples. | 01-15-2009 |
20090020911 | Method of Treating Rubber Composition with Cure Inihibitor to Create Soft Skin in Golf Ball Core - A method of making a golf ball comprising the steps of providing a preform comprising an uncured polybutadiene composition; coating the preform with a first cure-altering material; curing the coated preform at a predetermined temperature to form a crosslinked golf ball core having an outer surface having a first hardness and a geometric center having a second hardness greater than the first to define a negative hardness gradient; and forming a cover layer about the core to form the golf ball. | 01-22-2009 |
20090023516 | MULTI-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer formed from a thermoset rubber composition and having a first surface hardness; a thermoplastic outer core layer having a second surface hardness, an inner surface hardness, and being formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer; an inner cover layer; and an outer cover layer; wherein the first surface hardness is less than the second surface hardness by at least 5 Shore C and less than the inner surface hardness by at least 5 Shore C. | 01-22-2009 |
20090023517 | THREE-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer formed from a thermoset rubber composition and having a first surface hardness; a thermoplastic outer core layer having a second surface hardness, an inner surface hardness, and being formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer; an inner cover layer; and an outer cover layer; wherein the first surface hardness is substantially the same as the second surface hardness and the inner surface hardness. | 01-22-2009 |
20090023519 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a lift to weight ratio greater than about 1.7 at a Reynolds number of about 207,000 and a non-dimensional spin ratio of about 0.095, a COR of 0.790 or less, and a weight of about 1.39 to 1.62 oz; and wherein the cover layer has an outer surface including dimples covering 55% to 75% of the outer surface. | 01-22-2009 |
20090023865 | Method of Treating Rubber Composition with Cure Inhibitor to Create Soft Skin in Golf Ball Core - A method of making a golf ball comprising the steps of providing a preform comprising an uncured polybutadiene composition; coating the preform with a cure-altering material comprising an organosulfur compound, an inorganic sulfide compound, or a metal-containing organosulfur compound; curing the coated preform at a predetermined temperature to form a crosslinked golf ball core having an outer surface having a first hardness and a geometric center having a second hardness greater than the first to define a negative hardness gradient; and forming a cover layer about the core to form the golf ball. | 01-22-2009 |
20090042669 | Multi-layer Core Golf Ball - The present invention is directed to an improved golf ball displaying the desired spin profile and having a generally rigid, thermoset polybutadiene outer core surrounding a relatively soft, low compression inner core. In general, this golf ball has an inner core and at least one outer core layer surrounding the inner core. The inner core has a hardness less than a hardness of the outer core and a specific gravity less than or equal to the outer core specific gravity. Overall the inner core compression and outer core are formulated to provide a combined overall core compression of greater than about 50, preferably greater than about 70. A cover layer is provided to surround and to cover the outer core layer. | 02-12-2009 |
20090062036 | Golf balls including mechanically hybridized layers and methods of making same - Golf balls having at least one layer that is formed from a mechanically hybridizing two or more materials. In particular, the mechanically hybridized layers of the invention improve performance and increase durability of the finished golf ball, as well increase adhesion between layers. | 03-05-2009 |
20090075756 | MULTILAYER GOLF BALL - The present invention encompasses a golf ball having a diameter and being comprised of a core and a cover, wherein the core is further comprised of a fluid mass at the center of the ball, and a first, solid, non-wound mantle layer surrounding the fluid mass, wherein the first mantle layer comprises a copolymer or terpolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being neutralized at least 80% by a salt of an organic acid, a cation source, or a suitable base of the organic acid, and wherein the cover comprises polyurethane, polyurea, or a polyurea/polyurethane hybrid. Preferably, the rate of spin decay is at least 10% of an initial spin rate of the golf ball over the entire ball flight. | 03-19-2009 |
20090075760 | GOLF BALL WITH SPHERICAL POLYGONAL DIMPLES - A golf ball includes an outer spherical surface and a plurality of dimples formed thereon. In accordance to one aspect of the invention, the dimples in accordance to the invention have a polygonal perimeter and a substantially spherical, concave depression. The substantially spherical depression comprises a spherical depression and a transitional portion bridging the area between the polygonal perimeter and the spherical depression. In accordance to another aspect of the invention, one or more sides of the polygonal perimeter may be non-linear or curved. The dimples of the present invention may fill the ball's entire outer surface, or the dimples may occupy a predetermined pattern on the ball. The predetermined pattern may also include one or more channels or raised beads on the surface of the ball. | 03-19-2009 |
20090098951 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball having a reduced distance while maintaining the appearance of a normal high performance trajectory. The golf ball has a core, an inner cover layer, and a cover. The core has a diameter of from about 1.300 to 1.620 inches, while the ball has a weight from 1.30 to 1.620 ounces, a diameter from 1.670 to 1.800 inches and a maximum Coefficient of Restitution from about 0.600 to about 0.790 as measured at 125 ft/sec incoming ball velocity. The ball has a lift to weight ratio of greater than 1.5 at a Reynolds number of about 207,000 and a spin ratio of about 0.095. | 04-16-2009 |
20090105011 | Golf Balls having two or More Core Layers Formed from HNP Compositions - The present invention is directed to golf balls having a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a relatively soft HNP composition and at least one layer is formed from a relatively hard HNP composition. Relatively soft HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 1,000 psi to 50,000 psi. Relatively hard HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 25,000 psi to 150,000 psi. | 04-23-2009 |
20090124413 | Thermoplastic Core having a Hardness Gradient Formed from a Gradient-Initiating Solution - A golf ball including a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches; an outer cover layer; and an inner cover layer between the core and the outer cover layer. The thermoplastic core has been exposed to a gradient-initiating solution comprising a solvent, free radical initiator, and a reactive co-agent comprising a metal salt of an acrylic or methacrylic acid, a mono- or multi-functional acrylate or methacrylate, or having the chemical structure | 05-14-2009 |
20090124414 | Dual Core Golf Ball having Negative-Hardness-Gradient Thermoplastic Inner Core and Steep Negative-Hardness-Gradient Outer Core Layer - A golf ball comprising a thermoplastic inner core layer that has a geometric center hardness greater than its surface hardness to define a first “negative” hardness gradient. An outer core layer is disposed about the inner core and is formed from a substantially homogenous thermoset composition, typically rubber, and has an inner surface hardness greater than its outer surface hardness to also define a “negative” hardness gradient. An inner cover layer is disposed about the outer core layer and an outer cover layer is disposed about the inner cover layer. The “negative” hardness gradient of the inner core is typically −1 to −5 Shore C and the “negative” hardness gradient of the core layer is typically at least −7 Shore C. The difference between the inner core surface hardness and the outer core inner surface hardness, Δh, should be at least −3 Shore C. | 05-14-2009 |
20090124415 | Dual Core Golf Ball having Negative-Hardness-Gradient Thermoplastic Inner Core and Shallow Negative-Hardness-Gradient Outer Core Layer - A golf ball comprising a thermoplastic inner core layer that has a geometric center hardness greater than its surface hardness to define a first “negative” hardness gradient. An outer core layer is disposed about the inner core and is formed from a substantially homogenous thermoset composition, typically rubber, and has an inner surface hardness greater than its outer surface hardness to also define a “negative” hardness gradient. An inner cover layer is disposed about the outer core layer and an outer cover layer is disposed about the inner cover layer. The “negative” hardness gradient of the inner core is typically −1 to −5 Shore C and the “negative” hardness gradient of the core layer is typically at least −1 Shore C but less than −7 Shore C. The difference between the inner core surface hardness and the outer core inner surface hardness, Δh, should be at least −3 Shore C. | 05-14-2009 |
20090124416 | Dual Core Golf Ball having Negative-Hardness-Gradient Thermoplastic Inner Core and Steep Positive-Hardness-Gradient Thermoset Outer Core Layer - A golf ball comprising a thermoplastic inner core layer that has a geometric center hardness greater than its surface hardness to define a “negative” hardness gradient. An outer core layer is disposed about the inner core and is formed from a substantially homogenous thermoset composition, typically rubber, and has an inner surface hardness substantially less than its outer surface hardness to define a “positive” hardness gradient. An inner cover layer is disposed about the outer core layer and an outer cover layer is disposed about the inner cover layer. The “negative” hardness gradient of the inner core is typically −1 to −5 Shore C and the “positive” hardness gradient of the core layer is typically at least 25 Shore C. The difference between the inner core surface hardness and the outer core inner surface hardness, Δh, should be at least 25 Shore C. | 05-14-2009 |
20090124417 | Dual Core Golf Ball having Negative-Hardness-Gradient Thermoplastic Inner Core and Shallow Positive-Hardness-Gradient Thermoset Outer Core Layer - A golf ball comprising a thermoplastic inner core layer that has a geometric center hardness greater than its surface hardness to define a “negative” hardness gradient. An outer core layer is disposed about the inner core and is formed from a substantially homogenous thermoset composition, typically rubber, and has an inner surface hardness less than its outer surface hardness to define a “positive” hardness gradient. An inner cover layer is disposed about the outer core layer and an outer cover layer is disposed about the inner cover layer. The “negative” hardness gradient of the inner core is typically −1 to −5 Shore C and the “positive” hardness gradient of the core layer is less than 25 Shore C points. The difference between the inner core surface hardness and the outer core inner surface hardness, Δh, should be less than 25 Shore C points. | 05-14-2009 |
20090124418 | High-Energy Radiation Positive Hardness Gradient in a Thermoplastic Golf Ball Core - A golf ball comprising a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer; wherein the thermoplastic core has been exposed to sufficient high-energy radiation such that the hardness of the outer surface is greater than the hardness of the geometric center to define a positive hardness gradient of 5 Shore C or greater. | 05-14-2009 |
20090124419 | Silane-Based Gradient-Initiating Solution for Thermoplastic Core having a Positive Hardness Gradient - A golf ball comprising a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer; wherein the thermoplastic core has been exposed to a gradient-initiating solution comprising a silane having the formula: | 05-14-2009 |
20090124422 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 230,000 and a non-dimensional spin ratio of about 0.085, the golf ball has a lift-to-weight ratio of greater than about 1.9 and a drag-to-weight ratio of greater than about 3.0. | 05-14-2009 |
20090124423 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 207,000 and a non-dimensional spin ratio of about 0.095, the golf ball has a lift-to-weight ratio of greater than about 1.7 and a drag-to-weight ratio of greater than about 2.4. | 05-14-2009 |
20090124424 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 161,000 and a non-dimensional spin ratio of about 0.122, the golf ball has a lift-to-weight ratio of greater than about 1.2 and a drag-to-weight ratio of greater than about 1.5. | 05-14-2009 |
20090124425 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 138,000 and a non-dimensional spin ratio of about 0.142, the golf ball has a lift-to-weight ratio of greater than about 0.9 and a drag-to-weight ratio of greater than about 1.2. | 05-14-2009 |
20090124426 | THERMOPLASTIC CORE HAVING A NEGATIVE HARDNESS GRADIENT FORMED FROM A PLASTICIZER-BASED GRADIENT-INITIATING SOLUTION - A golf ball comprising a thermoplastic core, the core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer; wherein the hardness of the outer surface is less than the hardness of the geometric center to define a “negative” hardness gradient of 5 Shore C or greater. | 05-14-2009 |
20090124427 | THERMOPLASTIC CORE HAVING A NEGATIVE HARDNESS GRADIENT FORMED FROM A PLASTICIZER-BASED GRADIENT-INITIATING SOLUTION - A golf ball comprising a thermoplastic core, the core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer; wherein the thermoplastic core has been chemically modified by esterification or saponification such that the hardness of the outer surface is less than the hardness of the geometric center to define a negative hardness gradient of 5 Shore C or greater. | 05-14-2009 |
20090124428 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 184,000 and a non-dimensional spin ratio of about 0.106, the golf ball has a lift-to-weight ratio of greater than about 1.4 and a drag-to-weight ratio of greater than about 2.0. | 05-14-2009 |
20090131202 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a thin, relatively hard outer core layer surrounding a large, relatively soft inner core layer are provided. The inner core layer generally has a diameter of from 1.5 inches to 1.55 inches. The outer core layer generally has an outer diameter of from 1.6 inches to 1.64 inches. A cover is provided to surround the outer core layer. A moisture barrier layer is optionally provided between the outer core layer and the cover. | 05-21-2009 |
20090131204 | Golf Ball with Non-Circular Dimples - A golf ball has a substantially spherical outer surface comprised of a plurality of non-circular dimples. The dimples are formed by a plurality of lobes extending from a central hub, wherein each lobe is defined by a curved outer segment. The curved outer segments form at least a portion of the perimeter of the dimple. The dimples are comprised of at least four lobes. The dimples can also be comprised of a plurality of radiating arms emanating from a location proximate the hub of the dimple. | 05-21-2009 |
20090137341 | MULTI-LAYER CORE GOLF BALL HAVING THERMOSET RUBBER COVER - An all rubber golf ball with one or more thermosetting rubber core layers and one or more thermosetting rubber cover layer. At least one of the ball's layers has moisture vapor barrier property, and in one aspect the moisture vapor barrier layer is an intermediate layer. In one embodiment, the thermosetting rubber layers follow a cis- or a trans-polybutadiene gradient from the center of the ball to its cover. | 05-28-2009 |
20090163299 | GOLF BALLS HAVING TWO OR MORE CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls having a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a relatively soft HNP composition and at least one layer is formed from a relatively hard HNP composition. Relatively soft HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 1,000 psi to 50,000 psi. Relatively hard HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 25,000 psi to 150,000 psi. | 06-25-2009 |
20090169741 | METHOD OF PROVIDING A MOISTURE VAPOR BARRIER LAYER TO A CORE OF A GOLF BALL - A method of forming a water vapor barrier layer to a core of a golf ball is provided. The method includes placing the core of the golf ball into a vapor barrier composition, withdrawing the lifting device, and spinning and optionally oscillating the core within the composition for a time sufficient for the composition to form a layer on the core. The present invention also provides an apparatus that can be used to form a water vapor barrier layer. | 07-02-2009 |
20090170635 | GOLF BALL LAYER HAVING REDUCED SURFACE HARDNESS AND METHOD OF MAKING SAME - A method of making a golf ball comprising the steps of providing an untreated golf ball core comprising a thermoset rubber composition, the untreated golf ball core comprising an untreated outer surface having a hardness; treating the untreated outer surface of the untreated golf ball core with a surface-softening material comprising at least one fatty acid or fatty acid salt composition to form a golf ball core comprising a treated outer surface having a hardness less than the hardness of the untreated outer surface; and forming at least one cover layer about the core to form the golf ball. Also, the untreated core may comprise a geometric center and an untreated outer surface, each having a hardness such that the hardness of the treated outer surface is less than both the hardness of the untreated geometric center and the hardness of the untreated outer surface. A golf ball comprising a core and a cover, wherein the core has an outer surface that is treated with at least one fatty acid such that the outer surface has a hardness ratio (R) of the hardness after treatment (H | 07-02-2009 |
20090176023 | GOLF BALL LAYER HAVING REDUCED SURFACE HARDNESS AND METHOD OF MAKING SAME - A method of making a golf ball comprising the steps of providing an untreated golf ball core comprising a thermoset rubber composition, the untreated golf ball core comprising an untreated outer surface having a hardness; treating the untreated outer surface of the untreated golf ball core with a surface-softening material comprising at least one fatty acid or fatty acid salt composition to form a golf ball core comprising a treated outer surface having a hardness less than the hardness of the untreated outer surface; and forming at least one cover layer about the core to form the golf ball. Also, the untreated core may comprise a geometric center and an untreated outer surface, each having a hardness such that the hardness of the treated outer surface is less than both the hardness of the untreated geometric center and the hardness of the untreated outer surface. A golf ball comprising a core and a cover, wherein the core has an outer surface that is treated with at least one fatty acid such that the outer surface has a hardness ratio (R) of the hardness after treatment (H | 07-09-2009 |
20090181803 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 07-16-2009 |
20090181804 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. At least one of the core layers has a specific gravity of less than 1.05 g/cc and/or at least one of the core layers has a specific gravity of greater than 1.25 g/cc. | 07-16-2009 |
20090181805 | GOLF BALL SURFACE PATTERNS COMPRISING VARIABLE WIDTH/DEPTH MULTIPLE CHANNELS - A golf ball having an improved surface pattern is disclosed. The golf ball has one or more bands on its surface. These bands may be either channels or raised beads. The bands have variable widths and/or heights/depths, either within the same band or between bands. These bands may decrease drag, or may increase lift. These bands may be linear, or may be curved, and may or may not fully circumscribe the golf ball. These channels or ridges may also be combined with traditional or non-traditional dimples. | 07-16-2009 |
20090186719 | MULTI-LAYER GOLF BALL HAVING VELOCITY GRADIENT FROM FASTER CENTER TO SLOWER COVER - The present invention is directed to multi-layer golf balls having a center, a cover layer, and at least one intermediate layer between the core and the cover layer. The core, the at least one intermediate layer and the cover are constructed to have different initial velocities and COR such that the gradient of the initial velocities and COR progress from a faster center to a slower cover. | 07-23-2009 |
20090197702 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoplastic first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. | 08-06-2009 |
20090197703 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoset rubber first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. The inner core is preferably formed from a softer rubber than the first intermediate core layer. | 08-06-2009 |
20090197704 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a layer formed from a highly neutralized polymer composition, a layer formed from an additional thermoplastic composition, and an outermost layer formed from a thermoset rubber. | 08-06-2009 |
20090197705 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoset rubber first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. The inner core is preferably formed from a harder rubber than the first intermediate core layer. | 08-06-2009 |
20090203469 | GOLF BALLS CONTAINING HIGHLY-NEUTRALIZED ACID POLYMERS AND IONIC PLASTICIZERS - A golf ball comprising a core and a cover layer, wherein at least one of the core and the cover layer includes a polymer composition of a highly-neutralized acid polymer and an ionic plasticizer is disclosed and described. The highly-neutralized acid polymer can comprise at least 50 wt % of the polymer composition and have 70% to 100% of the acid groups neutralized. In addition, the ionic plasticizer can be alcohol esters, montanic acids, montanic acid esters, alkylene bis-amines, zwitterionic compounds, salts thereof, or combinations thereof. | 08-13-2009 |
20090247323 | GOLF BALLS CONTAINING HIGHLY-NEUTRALIZED ACID POLYMER BLENDS - A golf ball having a core, a cover layer, and an optional intermediate layer disposed between the core and the cover layer is disclosed and described. One or more of the core, the cover layer, or the intermediate layer is formed of a highly neutralized polymer blend of an acid copolymer and a metallocene-catalyzed copolymer, an olefinic block copolymer, a sufficient amount of a suitable cation source and a fatty acid or salt of a fatty acid. The highly neutralized polymer blend is neutralized from 80% to 100% while still retaining processability. Further, the core can have a diameter of 0.5 inches to about 1.62 inches and an Atti compression less than or equal to 105. The cover layer can have a material hardness between about 30 and 70 Shore D. | 10-01-2009 |
20090247324 | VARIABLE DENSITY CORE GOLF BALLS - A golf ball is provided having a modified density gradient among the inner layers to produce a desired high or low moment of inertia and controlled spin rate is disclosed. The golf ball has three or more inner layers in addition to a cover, and the density of the inner layers is selected such that the layers inside the cover have a density progression from the core to the cover or from the cover to the core. | 10-01-2009 |
20090247325 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED DISTANCE - A golf ball comprising a core comprising from about 25 to 75 parts of butyl or halobutyl rubber and having a coefficient of restitution of 0.683 to 0.750 and a compression of less than about 60; an inner cover layer comprising an ionomer and having a Shore D hardness of at least about 60; and an outer cover layer comprising a polyurethane or polyurea having a Shore D hardness of less than about 55; wherein the golf ball has a dimple coverage of 55% to 75%, a coefficient of restitution of 0.696 to 0.775, and an Atti compression of at least about 80. | 10-01-2009 |
20090253535 | GOLF BALL WITH NEGATIVE HARDNESS GRADIENT CORE - A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner core region disposed about the geometric center and having a thickness of about 5 mm or lower, an outer core region adjacent the outer core surface and having a thickness of about 5 mm or lower, and an intermediate core region disposed between the inner and outer core regions. The single layer core has a first hardness disposed within the inner core region, a second hardness disposed within the outer core region, and a third hardness disposed within the intermediate core region, wherein the first hardness and second hardness are greater than the third hardness and a hardness of the outer surface is substantially the same as or lower than a hardness of the geometric center. | 10-08-2009 |
20090258728 | METHOD FOR FORMING A GOLF BALL FROM A POLY(DIMETHYL SILOXANE) IONOMER - A method of making a golf ball comprising a core and a cover layer, wherein at least one of the core or cover layer comprises homo and copolymers of poly(dimethyl siloxane) ionomers, and their blends for improved resiliency and abrasion resistant golf balls. | 10-15-2009 |
20090258729 | GOLF BALL FORMED FROM A POLY-(DIMETHYL SILOXANE) IONOMER - A golf ball comprising a core and a cover layer, wherein at least one of the core or cover layer comprises homo and copolymers of poly(dimethyl siloxane) ionomers, and their blends for improved resiliency and abrasion resistant golf balls. | 10-15-2009 |
20090280927 | GOLF BALL WITH HEAD RESISTANT SHIELD LAYER - The present invention is directed to a golf ball comprising a shield layer having heat resistant properties to facilitate compression molding of a thermosetting polybutadiene-comprising layer over at least one thermoplastic layer. The invention utilizes a thermoplastic inner core comprising of a low vicat highly neutralized ionomer material having a low melting point of less than 100° C., and a Shore C surface hardness of less than 80 and a compression of less than 70, wherein a shield layer is placed around the low vicat softening point temperature thermoplastic to shield it from the high heat necessary to mold a thermoset material about it. | 11-12-2009 |
20090312120 | MULTILAYER GOLF BALL - The present invention encompasses a golf ball having a diameter and being comprised of a core and a cover, wherein the core is further comprised of a fluid mass at the center of the ball, and a first, solid, non-wound mantle layer surrounding the fluid mass, wherein the first mantle layer comprises a copolymer or terpolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being neutralized at least 80% by a salt of an organic acid, a cation source, or a suitable base of the organic acid, and wherein the cover comprises polyurethane, polyurea, or a polyurea/polyurethane hybrid. Preferably, the rate of spin decay is at least 10% of an initial spin rate of the golf ball over the entire ball flight. | 12-17-2009 |
20090312122 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. | 12-17-2009 |
20090325730 | LOW DEFORMATION GOLF BALL - A golf ball comprising an innermost core, an outer core, and a cover is disclosed. At least a layer of the golf ball is made from a low compression, high coefficient of restitution material, and is being supported by a low deformation, high compression layer. The resulting golf ball has high coefficient of restitution at high and low impact speeds and low compression for controlled greenside play. | 12-31-2009 |
20090325731 | HIGHLY-NEUTRALIZED THERMOPLASTIC COPOLYMER CENTER FOR IMPROVED MULTI-LAYER CORE GOLF BALL - A golf ball includes a core formed from a thermosetting rubber composition; a cover; and an intermediate layer disposed between the core and the cover. The intermediate layer is formed from a highly-neutralized thermoplastic copolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being neutralized by a salt of an organic acid or a suitable base of the organic acid, and sufficient cation source to bring the neutralization to 80% or greater. A sphere resulting from a combination of the core and the intermediate layer has an Atti compression of 60 or greater. | 12-31-2009 |
20090325732 | MULTI-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer having an Atti compression of 30 or less and formed from a first rubber composition and having a first surface hardness; an outer core layer including a second rubber composition; a thermoplastic layer having a second surface hardness, an inner surface hardness, and comprising a copolymer of ethylene and an α,β-unsaturated carboxylic acid, and sufficient amount of an organic acid or a salt of the organic acid and a cation source to neutralize the acid groups of the copolymer by about 80% or greater; an inner cover layer having a hardness of about 40 Shore D to 70 Shore D; and an outer cover layer. The first surface hardness is less than the second surface hardness by at least 5 Shore C. | 12-31-2009 |
20100004070 | NEGATIVE HARDNESS GRADIENT INNER CORE FOR DUAL CORE GOLF BALL - A golf ball including an inner core having a first outer surface and a geometric center and being formed from a first substantially homogenous composition such that the inner core has a hardness of about 60 Shore C to about 90 Shore C; an outer core layer disposed about the inner core having a second outer surface and being formed from a second substantially homogenous composition such that the outer core layer has a hardness of about 60 Shore C to about 95 Shore C; and a cover layer disposed about the outer core layer. The geometric center and first and second outer surfaces each have a hardness, the hardness of the second outer surface being lower than the hardness of the geometric center to define a negative hardness gradient. | 01-07-2010 |
20100004071 | NEGATIVE HARDNESS GRADIENT INNER CORE FOR DUAL CORE GOLF BALL - A golf ball includes an inner core having a first outer surface and a center formed from a homogenous composition such that the inner core has a hardness of 40 to 80 Shore C; an outer core layer disposed about the inner core having a second outer surface and an inner surface, formed from a homogenous composition such that the outer core layer has a hardness of 60 to 90 Shore C; and a cover layer including at least two layers. The center, first and second outer surfaces, and inner surface each have a hardness, the first outer surface hardness being lower than the center hardness to define a negative hardness gradient, and the second outer surface hardness being greater than the inner surface hardness by 10 to 20 Shore C to define a positive hardness gradient. | 01-07-2010 |
20100004073 | NEGATIVE HARDNESS GRADIENT INNER CORE FOR DUAL CORE GOLF BALL - A golf ball includes an inner core having a first outer surface and a geometric center and being formed from a first substantially homogenous composition such that the inner core has a hardness of about 60 Shore C to about 90 Shore C; an intermediate layer disposed about the inner core and being formed from a second substantially homogenous rubber-based composition such that the outer core layer has a hardness of about 20 Shore D to about 80 Shore D; and a cover layer disposed about the intermediate layer. A hardness of the first outer surface is 61 Shore C to 83 Shore C and is lower than a hardness of the geometric center to define a negative hardness gradient having a magnitude of up to −10. | 01-07-2010 |
20100009778 | PARTIALLY OR FULLY NEUTRALIZED BUTYL IONOMERS IN GOLF BALL LAYERS - A golf ball having a core, and at least one layer about the core, wherein the core or the layer is formed from partially or fully neutralized butyl ionomers or their blends to improve the resiliency and impact durability over a conventional butyl rubber. The core comprises a thermoplastic material, a thermoset material, or a rubber-based material, while at least one layer is formed from a composition comprising a partially or fully neutralized butyl rubber ionomer. The butyl rubber ionomer comprises repeating units derived from at least one isoolefin monomer, at least 0.5 mol % of repeating units derived from at least one multiolefin monomer, at least 0.5 mol % of repeating units derived from an allylic halide, and at least 0.5 mol % of an ionomeric moiety. The isoolefin comprises isobutylene, the multiolefin comprises isoprene and the allylic halide comprises a bromide. | 01-14-2010 |
20100029410 | GOLF BALLS COMPRISING HIGHLY-NEUTRALIZED ACID POLYMERS - A golf ball includes a dual core having an Atti compression of 70 or less and a diameter of 0.5 to 1.55 inches. An inner core and outer core are formed from a thermoset rubber composition and have a first and second hardness, respectively. An inner cover layer including an ionomer and having a hardness of 40 to 70 Shore D and being greater than the first hardness by at least 10 Shore D and an intermediate layer formed from a polymer neutralized by an organic acid or a salt thereof, and sufficient cation source present in an amount sufficient to neutralize the polymer by 80% or greater, are disposed between the core and an outer cover, which is formed from a polyurethane and having a thickness of 0.04 inches or less and a hardness of 55 Shore D or less. | 02-04-2010 |
20100029411 | MULTI-LAYER CORE GOLF BALL - The present invention is directed to an improved multi-layer golf ball displaying enhanced playing characteristics, including high speed, high launch, and low spin. In general the golf ball displays improved performance in areas such as distance and feel for lower swing speed players. The ball has a relatively large solid inner core, with at least one solid outer core layer surrounding the inner core, and a thin cover layer surrounding the outermost core layer. The inner core is softer than the outer core, which in turn is softer than the cover. The ball may be designed such that the coefficient of restitution (COR) gradient is from slow to fast; that is, the inner core has a lower COR than the total core, which has a lower COR than the entire golf ball. | 02-04-2010 |
20100029414 | GOLF BALL WITH MULTIPLE COVER LAYERS - A golf ball having a core and two or more cover layers, wherein the multiple cover layers are formed from materials that are substantially the same composition with the same Shore hardness, but are modified in some way to alter the processing or performance characteristics of the golf ball, or the layers have the same hardness and at least one cover layer is formed of a polymer blend including a polyurethane composition, and at least one cover layer is formed of a different polymer blend. | 02-04-2010 |
20100041496 | HIGHLY-NEUTRALIZED ACID POLYMER COMPOSITIONS HAVING A LOW MOISTURE VAPOR TRANSMISSION RATE AND THEIR USE IN GOLF BALLS - The present invention provides golf balls comprising a low specific gravity intermediate layer formed from a moisture resistant composition and disposed between a core and a cover. Depending on the thickness and specific gravity of the various layers, among other factors, the moment of inertia of the golf balls can be high or low. | 02-18-2010 |
20100048328 | GOLF BALLS HAVING TWO OR MORE CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls having a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a relatively soft HNP composition and at least one layer is formed from a relatively hard HNP composition. Relatively soft HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 1,000 psi to 50,000 psi. Relatively hard HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 25,000 psi to 150,000 psi. | 02-25-2010 |
20100075779 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a soft thermoset rubber center, a stiff thermoplastic intermediate core layer, and a thin thermoset rubber outer core layer. The maximum hardness of the core is a point or region located at a distance of from 0.1 mm to 8.0 mm measured radially inward from the outer surface of the core. The maximum core hardness is preferably at least 10% greater than the outer surface hardness of the core. | 03-25-2010 |
20100075780 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a large center and a thin outer core layer that are both soft relative to a hard, thin intermediate core layer. | 03-25-2010 |
20100081517 | MULTI-LAYER GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a metallic, composite, or inorganic/organic hybrid composition. | 04-01-2010 |
20100081518 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a thermoset composition other than diene rubber. | 04-01-2010 |
20100087276 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness, wherein the first hardness is greater than the second hardness to define a negative hardness gradient about 23 Shore C or less. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 40 Shore C to about 75 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness, wherein the fourth hardness is greater than the third hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is less than third hardness and the fourth hardness. Finally, the fourth hardness is less than the first hardness to define a two layer core having a negative hardness gradient of no greater than 15 Shore C. The a region may alternatively extend radially from the geometric center about 13 mm to about 20 mm and the diameter of the inner core layer may be about 26 mm or less. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein. | 04-08-2010 |
20100093467 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness, wherein the first hardness is greater than the second hardness to define a negative hardness gradient about 20 Shore C or less. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 90 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness, wherein the fourth hardness is greater than the third hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is greater than the first hardness, the third hardness and the fourth hardness. Finally, the fourth hardness is greater than the first hardness to define a two layer core having a positive hardness gradient of less than about 20 Shore C. In a second embodiment, the dual layer core differs from that of the first embodiment at least in that: The outer core has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C, the fifth hardness is greater than the third hardness and the fourth hardness and similar to the first hardness; and the fourth hardness is less than the first hardness to define a two layer core having a negative hardness gradient of less than about 10 Shore C or the fourth hardness is less than the first hardness to define a two layer core having a negative hardness gradient of less than about 7 Shore C. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein. | 04-15-2010 |
20100099514 | HIGHLY-NEUTRALIZED ACID POLYMERS AND THEIR USE IN GOLF BALLS - The present invention is directed to a golf ball having at least one layer which includes a polymer composition containing at least 50 wt % of an acid polymer and at least 0.5 wt % of a plasticizer selected from the group consisting of alkylamines, alkanol amines, and fatty acid amines, wherein the weight percentages are based on the total polymeric weight of the polymer composition. At least 70% of the acid groups of the acid polymer are neutralized by a cation source or a metal salt thereof. | 04-22-2010 |
20100099515 | HIGHLY-NEUTRALIZED ACID POLYMER COMPOSITIONS HAVING A LOW MOISTURE VAPOR TRANSMISSION RATE AND THEIR USE IN GOLF BALLS - The present invention provides high moment of inertia golf balls comprising a low specific gravity core layer formed from a moisture resistant composition. The moisture resistant composition has a moisture vapor transmission rate (MVTR) of 12.5 g·mil/100 in | 04-22-2010 |
20100099516 | MULTI-LAYER CORE GOLF BALL - The present invention is directed to an improved golf ball displaying the desired spin profile and having a generally rigid, thermoset polybutadiene outer core surrounding a relatively soft, low compression inner core. In general, this golf ball has an inner core and at least one outer core layer surrounding the inner core. | 04-22-2010 |
20100099517 | GOLF BALL COMPRISING A CORE LAYER HAVING A HARDNESS GRADIENT AND TRANS GRADIENT - A golf ball includes a ‘dual core’ formed from an inner core layer and an outer core layer. The inner core has an outer surface and a center and is typically formed from a substantially-homogenous rubber composition such that the center of the core has a hardness of about 72 Shore C to about 78 Shore C and a trans content of about 5% to 9%, and the outer surface of the inner core has a trans content of about 5% to 9%. The trans content of the outer surface and the center of the inner core are preferably within 2% of each other and, more preferably are substantially the same to define a zero trans gradient along a radius of the inner core. | 04-22-2010 |
20100113186 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a relatively hard outer core surrounding a relatively soft, low compression inner core are provided. The inner core generally has a compression of less than 50 and the inner core and outer core generally have a combined dual core compression of 50 or greater. The outer core generally has a Shore C hardness of 80 or greater. A cover, which can be a single-, dual-, or multi-layer cover, is provided to surround the outer core. A moisture barrier layer is optionally provided between the outer core and the cover. The moisture vapor transmission rate of the moisture barrier layer is preferably less than the moisture vapor transmission rate of the cover. | 05-06-2010 |
20100130309 | MULTI-LAYER CORE GOLF BALL - Golf balls having a multi-layer core and a cover are disclosed. The multi-layer core contains a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is thin relative to the center and outer core layer. In one embodiment, the relatively hard intermediate core layer has a surface hardness of 80 to 90 Shore C which is greater than the center hardness and surface hardness of the outer core layer. In another embodiment, the cover includes an inner cover layer having a surface hardness of 60 Shore D or greater and an outer cover layer having a surface hardness of 20 to 70 Shore D. | 05-27-2010 |
20100137075 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls comprising a dual-layer core and a cover. The core comprises a center having a center hardness of 50 Shore C or greater and formed from a low modulus HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a high modulus HNP composition. Low modulus HNP compositions of the present invention have a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention have a modulus of from 25,000 psi to 150,000 psi. The modulus of the highly neutralized copolymer of the low modulus HNP is at least 10% less than the modulus of the highly neutralized copolymer of the high modulus HNP composition. The cover comprises an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 06-03-2010 |
20100144465 | FOAM-CORE GOLF BALLS - A golf ball with a controlled moment of inertia and controlled spin rate is disclosed. In one embodiment, the golf ball comprises a core, an intermediate layer and a cover, wherein the intermediate layer comprises a foamed highly neutralized polymer, has its specific gravity reduced to less than about 1.05, wherein the reduction in the specific gravity of the intermediate layer is less than about 25% to minimize the reduction in the coefficient of restitution of the golf ball to about 6% or less. | 06-10-2010 |
20100160082 | Golf Balls having a Casing Layer Formed from a Single High Acid Based Ionomer with an Ultra High Melt Flow Index Maleic Anhydride Terpolymer - The present invention is a multi-piece golf ball having a casing layer comprising of a single high acid based ionomer that is blended with an ultra high melt flow index maleic anhydride terpolymer with a melt flow index of at least 70 g/10 min. at 190° C. The maleic anhydride terpolymer comprises a copolymer of ethylene-alkyl acrylate-maleic anhdydride. The alkyl acrylate is selected from methyl, or ethyl, or propyl, or butyl, or pentyl acrylate. The maleic anhydride content in the terpolymer is 1 to 4% of the total blend by weight. The single high acid ionomer such as a copolymer of ethylene-acrylic or methacrylic is partially neutralized with a suitable cation such as lithium, sodium, magnesium, zinc, or potassium. | 06-24-2010 |
20100160083 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - A multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient in addition to an overall specific hardness gradient from one core layer to the next. The inner and outer core layers comprise a plurality of hardnesses of from about 50 Shore C to about 80 Shore C. The inner core layer comprises a diameter of about 30 mm or lower, the geometric center comprising a hardness different from that of the outer surface to define a positive or negative hardness gradient of about 20 Shore C or lower. The outer core layer comprises a thickness of about 10 mm or lower, the second outer surface hardness being less than that of the inner surface to define a negative hardness gradient of about 15 Shore C or lower. A further outer core layer hardness, disposed in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, is greater than that of the inner and second outer surfaces. Also, the second outer surface hardness is less than that of the geometric center to define a negative hardness gradient of about 15 Shore C or lower. | 06-24-2010 |
20100160084 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - A multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient in addition to an overall specific hardness gradient from one core layer to the next. The inner core layer comprises a plurality of hardnesses of from about 40 Shore C to about 85 Shore C, a diameter of about 30 mm or lower, and a first outer surface comprising a hardness greater than a hardness of a geometric center to define a positive hardness gradient of about 20 Shore C or greater. The outer core layer comprises a plurality of hardnesses of from about 65 Shore C to about 95 Shore C, a thickness of about 10 mm or lower, and a second outer surface comprising a hardness greater than that of an inner surface to define a positive hardness gradient of about 20 Shore C or lower. A further outer core layer hardness, disposed in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, is greater than that of the inner and second outer surfaces. Also, the hardness of second outer surface is greater than that of the geometric center to define a positive hardness gradient of about 30 Shore C or greater. | 06-24-2010 |
20100160085 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - A multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient in addition to an overall specific hardness gradient from one core layer to the next. The inner core layer comprises a plurality of hardnesses of from about 50 Shore C to about 90 Shore C, a diameter of about 30 mm or lower, and a geometric center comprising a hardness greater than that of a first outer surface to define a negative hardness gradient of about 15 Shore C or greater. The outer core layer comprises a plurality of harnesses of from about 50 Shore C to about 95 Shore C, a thickness of about 10 mm or lower, and a second outer surface comprising a hardness greater than that of an inner surface to define a positive hardness gradient of about 20 Shore C or greater. A further outer core layer hardness, disposed in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, is greater than that of the inner and second outer surfaces. Also, the hardness of the second outer surface is similar to or less than that of the geometric center. | 06-24-2010 |
20100160086 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 90 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness wherein the first hardness is greater than the second hardness to define a negative hardness gradient of about 15 Shore C or greater. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 40 Shore C to about 75 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness, wherein the fourth hardness is similar to or less than the third hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is less than the third hardness and the fourth hardness. Finally, the fourth hardness is similar to or less than the first hardness. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein. | 06-24-2010 |
20100167844 | MULTI-LAYERED CORE GOLF BALL - The present invention is directed towards a multi-layered core golf ball that comprises a center, a cover and at least two core layers formed around the center to create an inner ball, wherein the outermost core layer is relatively stiff and hard relative to the center. | 07-01-2010 |
20100173726 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - A golf ball comprising a core and a cover, the core comprising an outer surface and a geometric center, the outer surface being treated with and comprising a fatty acid and/or fatty acid salt composition, the outer surface further having a first hardness and the geometric center having a second hardness, wherein the first hardness is the same as or different than the second hardness. | 07-08-2010 |
20100173727 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - A golf ball comprising a core and at least one cover layer disposed about the core, the core comprising a geometric center and an outer surface, the core further comprising an untreated region extending radially from the geometric center a predetermined distance D | 07-08-2010 |
20100203984 | THICK INNER COVER MULTI-LAYER GOLF BALL - A golf ball includes a core having a center and an outer core layer formed from a polyoctenamer. The core has a compression of 70 or less, an outer diameter of 1.38 to 1.387 inches, and a COR of 0.770 to 0.810. An intermediate layer is formed over the core, the intermediate layer having a thickness of 0.015 to 0.07 inches, a hardness of 55 to 70 Shore D, and including a highly-neutralized ionomer. A cover including an inner cover layer and an outer cover layer is formed over the intermediate layer. The outer cover layer has a thickness of 0.02 to 0.04 inches and includes a castable polyurethane having a hardness of 40 to 60 Shore D. A combination of the core and the intermediate layer has a compression of 60 or greater and the golf ball has a COR of 0.805 or greater. | 08-12-2010 |
20100215867 | METHOD OF TREATING RUBBER COMPOSITION WITH CURE INHIBITOR TO CREATE SOFT SKIN IN GOLF BALL CORE - A method of making a golf ball including the steps of providing a preform including an uncured polybutadiene composition; coating the preform with a cure-altering material including a hydroquinone compound, a benzoquinone compound, a resorcinol compound, or a quinhydrone compound; curing the coated preform at a predetermined temperature to form a crosslinked golf ball core having an outer surface having a first hardness and a geometric center having a second hardness greater than the first to define a negative hardness gradient; and forming a cover layer about the core to form the golf ball. | 08-26-2010 |
20100216573 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 08-26-2010 |
20100222157 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 09-02-2010 |
20100222158 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 09-02-2010 |
20100227706 | MULTI-LAYER COVER GOLF BALL HAVING NON-IONOMERIC INTERMEDIATE COVER LAYER - A golf ball includes a core and a cover disposed about the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 Shore D and 60 Shore D, an outer cover layer having a hardness between 55 Shore D and 60 Shore D, and a non-ionomeric thermoplastic intermediate cover layer disposed between the inner and outer cover layer. The intermediate layer has a hardness greater than the inner cover layer and the outer cover layer. The inner cover is formed from a partially- or fully-neutralized ionomer, the intermediate layer from a non-ionomer, and the cover outer cover layer from a polyurea formed from the reaction product of a prepolymer comprising an isocyanate and an amine-terminated polytetramethylene ether glycol, and an amine-terminated curing agent. | 09-09-2010 |
20100227707 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 60 Shore C to about 85 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness wherein the second hardness is greater than the first hardness to define a positive hardness gradient of from about 5 Shore C to about 20 Shore C. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 60 Shore C to about 95 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness wherein the fourth hardness is greater than the third hardness to define a positive hardness gradient of about 20 Shore C or lower. The third hardness may be similar to the second hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is greater than the third hardness and the fourth hardness. Alternatively, the region may extend radially from about 13 mm to about 20 mm from the geometric center. Finally, the fourth hardness is greater than the first hardness to define a positive hardness gradient of about 30 Shore C or lower. In a second embodiment, the outer core layer differs from that of the first embodiment at least in that: the fourth hardness is less than the third hardness to define a negative hardness gradient of about 20 Shore C or lower; the fifth hardness is less than the third hardness and the fourth hardness; and the fourth hardness is greater than the first hardness to define a positive hardness gradient of about 18 Shore C or lower. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein. | 09-09-2010 |
20100227711 | MULTI-LAYER COVER GOLF BALL HAVING NON-IONOMERIC INTERMEDIATE COVER LAYER - A golf ball including a core and a cover disposed adjacent the core, the cover including an ionomeric thermoplastic inner cover layer disposed about the core and having a hardness of 55 Shore D to 60 Shore D; a castable thermoset polyurethane outer cover layer having a hardness between 55 Shore D and 60 Shore D; and a non-ionomeric thermoplastic intermediate cover layer disposed between the inner and outer cover layers, the non-ionomeric intermediate cover layer being formed of a polyester/polycarbonate blend and having a hardness greater than both the inner and outer cover layers; wherein the inner cover layer has a first thickness, the outer cover layer has a second thickness, and the intermediate cover layer has a third thickness less than the first or second thickness by at least 20%. | 09-09-2010 |
20100227712 | GOLF BALL WITH SPHERICAL POLYGONAL DIMPLES - A golf ball includes an outer spherical surface and a plurality of dimples formed thereon. In accordance to one aspect of the invention, the dimples in accordance to the invention have a polygonal perimeter and a substantially spherical, concave depression. The substantially spherical depression comprises a spherical depression and a transitional portion bridging the area between the polygonal perimeter and the spherical depression. In accordance to another aspect of the invention, one or more sides of the polygonal perimeter may be non-linear or curved. The dimples of the present invention may fill the ball's entire outer surface, or the dimples may occupy a predetermined pattern on the ball. The predetermined pattern may also include one or more channels or raised beads on the surface of the ball. | 09-09-2010 |
20100234139 | GOLF BALL WITH AN IONOMERIC INNER COVER, STIFF TPU INTERMEDIATE COVER, AND CAST THERMOSET OUTER COVER - A golf ball includes a core and a cover disposed adjacent the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a non-ionomeric thermoplastic polyurethane or polyurea intermediate cover layer disposed between the inner and outer cover layers. The intermediate cover layer has a hardness greater than the inner cover layer hardness and the outer cover layer hardness. The inner cover is formed from a partially- or fully-neutralized ionomer and the outer cover layer is formed from a polyurethane, a polyurea, or a urethane-urea blend. | 09-16-2010 |
20100234140 | GOLF BALL WITH A NON-IONOMERIC INNER COVER, STIFF TPU INTERMEDIATE COVER, AND CAST THERMOSET OUTER COVER - A golf ball including a core and a cover disposed about the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a stiff intermediate cover layer disposed between the inner and outer cover layers and having a hardness greater than the inner cover layer and the outer cover layer. The inner cover layer is formed from a non-ionomeric composition including a non-ionomeric stiffening polymer and at least one E/Y copolymer or E/X/Y terpolymer, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer. The intermediate cover layer is formed from a stiff thermoplastic polyurethane or polyurea composition and the cover outer cover layer is formed from a thermoset polyurethane, a polyurea, or a urethane-urea blend. | 09-16-2010 |
20100240468 | GOLF BALLS CONTAINING HIGHLY NEUTRALIZED ACID POLYMERS AND SUGAR ESTER HLB MODIFIERS - A golf ball comprising a core and a cover layer surrounding the core, where at least one of the core and the cover layer includes a polymer composition of a highly neutralized acid polymer and a sugar ester HLB modifier such that the sugar ester HLB modifier is present from about 15 wt % to about 40 wt % of the polymer composition. | 09-23-2010 |
20100240470 | GOLF BALL HAVING A STIFF TPU INNER COVER AND A CAST THERMOSET OUTER COVER - A golf ball including a core and a cover disposed about the core, the cover including a stiff thermoplastic polyurethane or polyurea inner cover layer disposed directly about the core and having a hardness from 45 Shore D to 80 Shore D; and an outer cover layer having a hardness from 40 Shore D to 65 Shore D. The cover outer cover layer is formed from a polyurethane, a polyurea, or a urethane-urea blend and the inner cover layer hardness is preferably greater than the outer cover layer hardness by at least 5 Shore D. | 09-23-2010 |
20100240471 | GOLF BALLS HAVING TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting essentially of a dual-layer core and a cover. The core includes a center having a center hardness of 50 Shore C or greater and formed from a first HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a second HNP composition. The first HNP composition has a material hardness of 55 Shore D or less and comprises a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer. The second HNP composition has a material hardness of 45 Shore D or greater and comprises a highly neutralized ethylene/(meth)acrylic acid copolymer. The material hardness of the first HNP composition is less than the material hardness of the second HNP composition. The cover includes an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 09-23-2010 |
20100248862 | GOLF BALL HAVING MOISTURE BARRIER LAYERS MADE FROM POLYOLEFIN COMPOSITIONS - A multi-layered golf ball having a core, moisture vapor barrier layer, and outer cover, wherein the moisture barrier layer is preferably made from a non-ionomeric polyolefin composition is disclosed. The moisture barrier layer is applied at very low thickness, preferably in the range of 0.0001 to 0.010 inches, so that the playing performance properties of the ball are not altered. Preferably, the moisture vapor barrier layer is applied over the core material using powder coating or solution coating methods. | 09-30-2010 |
20100248863 | GOLF BALL HAVING A THERMOSETTING INTERMEDIATE AND OUTER COVER AND THERMOPLASTIC INNER COVER - A golf ball is formed including a core and a cover. The cover includes a thermoplastic inner cover layer and having a hardness between 55 and 60 Shore D, an outer cover layer having a hardness between 55 and 60 Shore D, and a non-ionomeric thermosetting polyurethane or polyurea intermediate cover layer disposed between the inner and outer cover layers. The intermediate cover layer has a hardness greater than the inner cover layer hardness and the outer cover layer hardness. The inner cover is formed from a partially- or fully-neutralized ionomer and the outer cover layer is formed from a polyurethane, a polyurea, or a urethane-urea blend. | 09-30-2010 |
20100248864 | GOLF BALLS HAVING AT LEAST TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 09-30-2010 |
20100261552 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. | 10-14-2010 |
20100273576 | THERMOPLASTIC CORE HAVING A HARDNESS GRADIENT FORMED FROM A GRADIENT-INITIATING SOLUTION - A golf ball including a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches; an outer cover layer; and an inner cover layer between the core and the outer cover layer. The thermoplastic core has been exposed to a gradient-initiating solution comprising a solvent, free radical initiator, and a reactive co-agent comprising a metal salt of an acrylic or methacrylic acid, a mono- or multi-functional acrylate or methacrylate, or having the chemical structure | 10-28-2010 |
20100273577 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness, wherein the first hardness is greater than the second hardness to define a negative hardness gradient about 20 Shore C or less. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 45 Shore C to about 65 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness, wherein the fourth hardness is greater than the third hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is less than the third hardness and the fourth hardness. Finally, the fourth hardness is less than the first hardness to define a two layer core having a negative hardness gradient of no greater than about 20 Shore C. In a second embodiment, the dual layer core differs from that of the first embodiment at least in that: The outer core has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C, the first hardness is greater than the second hardness to define a negative hardness gradient about 23 Shore C or less; there is no fifth hardness; and the fourth hardness is similar to the first hardness. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein. | 10-28-2010 |
20100304895 | MULTI-LAYER GOLF BALLS HAVING MOISTURE BARRIER LAYERS BASED ON POLYALKENAMER COMPOSITIONS - Golf balls having a dual-core comprising an inner core and outer moisture barrier core layer are provided. The outer core help prevent moisture from penetrating into the inner core. A cover layer, preferably made of a polyurethane or polyurea material, is disposed about the outer core layer. The inner and outer cores are formed of a rubber composition, preferably a polyalkenamer rubber. The polyalkenamer rubber composition may further include other rubbers such as polybutadiene, polyisoprene, ethylene propylene rubber, ethylene propylene diene rubber, and styrene-butadiene rubber. The outer core has a moisture vapor transmission rate (MVTR) lower than that of the cover. In one version, the outer core has a MVTR of 1 grams·mm/m | 12-02-2010 |
20100317462 | GOLF BALLS COMPRISING IONOMERS FORMED FROM POST-NEUTRALIZATION OF IN SITU Na/Zn IONOMERS WITH Li OR Ca CATIONS - The present invention is directed to compositions and methods relating to golf balls. In one embodiment, a golf ball can include a core and/or intermediate layer formed from a partially-neutralized in situ ionomer that is neutralized to a first level by a first cation, and is subsequently neutralized by a second, different cation to produce a further, more highly-neutralized ionomer. The further-neutralized ionomer exhibits decreased compression (softer) and/or increased COR (faster) compared to a comparative golf ball that contains a core or layer that is formed from an ionomer that is not subsequently neutralized with a second cation. | 12-16-2010 |
20100317463 | GOLF BALLS HAVING LAYERS MADE FROM FUNCTIONALIZED ETHYLENE COPOLYMERS - Golf balls having a core and containing at least one surrounding layer made from a functionalized ethylene copolymer having a linear or substantially linear structure are provided. The core may be made of a polybutadiene rubber material. The functionalized ethylene copolymer composition may be used to form any layer in the golf ball structure such as, for example, an outer core, intermediate layer, inner cover, and/or outer cover. The composition may be blended with ionomeric or non-ionomeric resins such as polyamides, polyurethanes, polyureas, polycarbonates, polyesters, and polyacrylates to form the layer. The resulting layers provide the golf ball with improved resiliency and impact durability. | 12-16-2010 |
20100323819 | GOLF BALL CORES BASED ON POLYALKENAMER RUBBER HAVING POSITIVE HARDNESS GRADIENTS - Golf balls having a core comprising a polyalkenamer rubber composition are provided. The rubber composition may further include other rubbers such as, for example, polybutadiene, polyisoprene, ethylene propylene rubber, ethylene propylene diene rubber, and styrene-butadiene rubber. The rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel. In one version, a solid, single core having an outer surface and geometric center is provided, wherein the outer surface has a hardness greater than the hardness of the geometric center to define a positive hardness gradient of at least 10 Shore C. In a second version, a dual-core having an inner core and surrounding outer core layer is provided. The inner core has a positive hardness gradient, while the outer core has a zero; negative; or positive hardness gradient. | 12-23-2010 |
20100323820 | GOLF BALLS HAVING MULTI-LAYER CORES BASED ON POLYALKENAMER COMPOSITIONS - The present invention generally relates to golf balls and more particularly to golf balls having multi-layered cores comprising a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. A cover layer is disposed about the multi-layered core. At least one of the center, intermediate core layer, and outer core layer comprises a polyalkenamer rubber. The rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel. | 12-23-2010 |
20100331109 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer. | 12-30-2010 |
20100331110 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer. | 12-30-2010 |
20100331111 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer. | 12-30-2010 |
20100331112 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a soft, low compression center; a soft, flexible outer cover layer; and a relatively hard, high compression intermediate layer disposed between the center and the outer cover layer are provided. The outer surface hardness of the intermediate layer is greater than that of both the center and the outer cover layer. | 12-30-2010 |
20100331116 | GOLF BALL WITH SINGLE LAYER CORE HAVING SPECIFIC REGIONS OF VARYING HARDNESS - A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein an inner core region is disposed about the geometric center, an outer core region is adjacent the outer surface, and an intermediate core region is disposed between the inner and outer core regions and extends from at least about 2 mm radially from the geometric center to at least about 2 mm from the outer surface. The inner core region has a first hardness (IC | 12-30-2010 |
20100331117 | GOLF BALL WITH SINGLE LAYER CORE HAVING SPECIFIC REGIONS OF VARYING HARDNESS - A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein an inner core region is disposed about the geometric center and an outer core region is disposed about the inner core region and is adjacent the outer surface, the outer core region having a thickness of about 15 mm or less. The inner core region has a first hardness (IC | 12-30-2010 |
20110003651 | GOLF BALL LAYER HAVING REDUCED SURFACE HARDNESS AND METHOD OF MAKING SAME - The invention is directed to a golf ball comprising a core and a cover, wherein the core has a geometric center having a hardness (H | 01-06-2011 |
20110014997 | GOLF BALL WITH MULTIPLE COVER LAYERS - A golf ball having a core and two or more cover layers, wherein the multiple cover layers are formed from materials that are substantially the same composition with the same Shore hardness, but are modified in some way to alter the processing or performance characteristics of the golf ball, or the layers have the same hardness and at least one cover layer is formed of a polymer blend including a polyurethane composition, and at least one cover layer is formed of a different polymer blend. | 01-20-2011 |
20110014998 | DUAL CORE GOLF BALL HAVING NEGATIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND STEEP POSITIVE-HARDNESS-GRADIENT THERMOSET OUTER CORE LAYER - A golf ball comprising a thermoplastic inner core layer that has a geometric center hardness greater than its surface hardness to define a “negative” hardness gradient. An outer core layer is disposed about the inner core and is formed from a substantially homogenous thermoset composition, typically rubber, and has an inner surface hardness substantially less than its outer surface hardness to define a “positive” hardness gradient. An inner cover layer is disposed about the outer core layer and an outer cover layer is disposed about the inner cover layer. | 01-20-2011 |
20110014999 | MULTI-LAYER CORE GOLF BALL HAVING OPPOSING HARDNESS GRADIENT WITH STEEP GRADIENT OUTER CORE LAYER - A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous composition such that the geometric center has a hardness of 56 to 80 Shore C and the outer surface has a hardness of 50 to 75 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 85 to 98 Shore C and an inner surface having a hardness of 68 to 78 Shore C and being formed from a second substantially homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −15 Shore C. | 01-20-2011 |
20110015000 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 01-20-2011 |
20110023774 | METHOD OF PROVIDING A MOISTURE VAPOR BARRIER LAYER TO A CORE OF A GOLF BALL - A method of forming a water vapor barrier layer to a core of a golf ball is provided. The method includes placing the core of the golf ball into a vapor barrier composition, withdrawing the lifting device, and spinning and optionally oscillating the core within the composition for a time sufficient for the composition to form a layer on the core. The present invention also provides an apparatus that can be used to form a water vapor barrier layer. | 02-03-2011 |
20110053709 | NEGATIVE HARDNESS GRADIENT CORES MADE OF POLYALKENAMER RUBBER FOR GOLF BALLS - Golf balls having cores with negative hardness gradients are provided. The cores are made of polyalkenamer rubber compositions that may further include other rubbers such as, for example, polybutadiene, polyisoprene, ethylene propylene rubber, ethylene propylene diene rubber, and styrene-butadiene rubber. In one version, a solid, single core having an outer surface and center is provided, wherein the outer surface has a hardness substantially the same or lower than the hardness of the center to define a zero or negative hardness gradient. Dual-cores having inner and outer cores can be made, wherein the inner core has a negative hardness gradient and the outer core has a positive or negative hardness gradient. The rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel. | 03-03-2011 |
20110059811 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a low modulus HNP composition and at least one layer formed from a high modulus HNP composition. | 03-10-2011 |
20110059812 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a relatively hard outer core surrounding a relatively soft, low compression inner core are provided. The inner core generally has a compression of less than 50 and the inner core and outer core generally have a combined dual core compression of 50 or greater. The outer core generally has a Shore C hardness of 80 or greater. A cover, which can be a single-, dual-, or multi-layer cover, is provided to surround the outer core. A moisture barrier layer is optionally provided between the outer core and the cover. The moisture vapor transmission rate of the moisture barrier layer is preferably less than the moisture vapor transmission rate of the cover. | 03-10-2011 |
20110077104 | MULTI-PIECE GOLF BALL COMPRISING LOW HARDNESS GRADIENT CORE - A golf ball includes a single core formed from a substantially homogenous rubber composition, an inner cover disposed about the core, and an outer cover. The inner cover includes an ionomeric material and has a hardness of about 60 Shore D or greater. The outer cover layer is disposed about the inner cover layer, is formed from a castable polyurea or polyurethane, and has a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C, the geometric center of the core has a trans content of about 10% or less and a hardness of about 70 to 80 Shore C, and the core surface hardness is greater than the geometric center hardness by about 1 to 10 Shore C to define a shallow positive hardness gradient. | 03-31-2011 |
20110077105 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a rubber center and a rubber outer core layer that are both soft relative to a hard, thermoplastic intermediate core layer. | 03-31-2011 |
20110081989 | HIGHLY-NEUTRALIZED THERMOPLASTIC COPOLYMER CENTER FOR IMPROVED MULTI-LAYER CORE GOLF BALL - A golf ball includes a core formed from a thermosetting rubber composition; a cover; and an intermediate layer disposed between the core and the cover. The intermediate layer is formed from a highly-neutralized thermoplastic copolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being neutralized by a salt of an organic acid or a suitable base of the organic acid, and sufficient cation source to bring the neutralization to 80% or greater. A sphere resulting from a combination of the core and the intermediate layer has an Atti compression of 60 or greater. | 04-07-2011 |
20110081990 | HIGHLY-NEUTRALIZED THERMOPLASTIC COPOLYMER CENTER FOR IMPROVED MULTI-LAYER CORE GOLF BALL - Multi-layer golf balls comprising a center, intermediate layer, and cover are disclosed. The center is formed from a highly-neutralized acid copolymer composition. | 04-07-2011 |
20110084422 | MULTI-LAYERED GOLF BALLS HAVING A THIN OUTER COVER - Multi-layered golf balls having an inner core, at least one intermediate layer, and outer cover are provided. The outer cover is made from am ultra-low melt index (ULMI) thermoplastic material using an in-molding coating process that involves applying a thin layer of the material to the interior surface of the cover mold members. Preferably, the ultra-low melt index material is a highly neutralized ionomer ethylene-based copolymer. The cover layers made from these highly neutralized polymers (HNPs) are thin and uniform and provide the golf ball with good playing performance properties. Yet, the cover layers also are tough and provide the golf ball with good impact durability. | 04-14-2011 |
20110089607 | MULTI-LAYERED GOLF BALLS HAVING A THIN OUTER COVER - Multi-layered golf balls having an inner core, at least one intermediate layer, and outer cover are provided. The outer cover is made from am ultra-low melt index (ULMI) thermoplastic material using an in-molding coating process that involves applying a thin layer of the material to the interior surface of the cover mold members. Preferably, the ultra-low melt index material is a highly neutralized ionomer ethylene-based copolymer. The cover layers made from these highly neutralized polymers (HNPs) are thin and uniform and provide the golf ball with good playing performance properties. Yet, the cover layers also are tough and provide the golf ball with good impact durability. | 04-21-2011 |
20110092313 | DUAL-CORE COMPRISING ZERO GRADIENT CENTER AND POSITIVE GRADIENT OUTER CORE LAYER - A golf ball including an inner core having a geometric center and a first outer surface, the inner core being formed from a first substantially homogenous rubber composition, and an outer core layer formed from a second substantially homogenous rubber composition, the outer core layer having a second outer surface. An inner cover layer is formed over the core and includes an ionomeric material. An outer cover layer is formed over the inner cover layer and includes a castable polyurea or a castable polyurethane. The first outer surface has a hardness of up to about 20 Shore C less than a hardness at the geometric center to define a negative hardness gradient inner core and the second outer surface has a hardness of up to 18 Shore C greater than the geometric center hardness to define a positive gradient outer core layer and a shallow positive hardness gradient core. | 04-21-2011 |
20110098134 | GOLF BALLS HAVING TWO OR MORE CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls having a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a relatively soft HNP composition and at least one layer is formed from a relatively hard HNP composition. Relatively soft HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 1,000 psi to 50,000 psi. Relatively hard HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 25,000 psi to 150,000 psi. | 04-28-2011 |
20110105245 | GOLF BALLS COMPRISING FUNCTIONALIZED POLYURETHANE COMPOSITIONS - Golf balls having at least one layer made from a composition comprising a functionalized polytrimethylene ether-based polyurethane are provided. The composition is the reaction product of a polyisocyanate with polytrimethylene ether glycol and a hydroxyl and/or amine curing agent wherein at least one of the isocyanate compound, polytrimethylene ether glycol compound, or curing agent contains acid, ester, or ionic groups. Blends of polytrimethylene ether glycol with other glycols such as polyester glycol, polycaprolactone glycol, or polycarbonate glycol can be used. The composition can be prepared using prepolymer and one-shot manufacturing techniques. The composition may be used to form any layer in the golf ball structure and the resulting golf ball has improved resiliency and playing performance. | 05-05-2011 |
20110111886 | GOLF BALLS HAVING TWO OR MORE CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of an inner core layer formed from a relatively hard HNP composition and an outer core layer formed from a relatively soft HNP composition. The outer core layer has an outer surface hardness less than the outer surface hardness of the inner core layer. | 05-12-2011 |
20110111887 | GOLF BALL WITH DIMPLES HAVING CONSTANT DEPTH - A golf ball having an improved dimple pattern is disclosed. The dimples may have a regular or irregular polygonal perimeter, an undimpled land surface and a depression therein. The perimeter may alternatively comprise a number of linear sides and at least one curved side. At least a portion of the bottom of the depression is convex such that its curvature is substantially identical to the curvature of the land surface making the depth of that portion constant along its surface relative to the land surface. The depression may further comprise a sub-depression. Alternatively, the depression may further comprise a projection. Additionally, the depression may have a polygonal or circular perimeter. | 05-12-2011 |
20110124437 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 207,000 and a non-dimensional spin ratio of about 0.095, the golf ball has a lift-to-weight ratio of greater than about 1.7 and a drag-to-weight ratio of greater than about 2.7. | 05-26-2011 |
20110124438 | GOLF BALL HAVING VISUALLY ENHANCED NON-UNIFORM THICKNESS INTERMEDIATE LAYER - A golf ball with at least one core layer, at least one intermediate layer, and at least one cover layer. Any combination of the layers of the golf ball may feature a visually enhancing means. The cover layer is preferably translucent and provides a view to the intermediate layer and/or the core layer. The intermediate layer has a non-uniform thickness. The core may comprise a non-spherical insert. The intermediate layer and the core layer may affect the spin rate of the golf ball. The intermediate layer may be used to indicate the alignment of the golf ball. | 05-26-2011 |
20110130218 | GOLF BALLS COMPRISING POLYTRIMETHYLENE ETHER AMINE-BASED POLYUREA COMPOSITIONS - Golf balls having at least one layer made from a composition comprising a polytrimethylene ether amine (PTMEA)-based polyurea or polyurea/urethane are provided. The composition is the reaction product of a polyisocyanate with polytrimethylene ether amine and a hydroxyl and/or amine curing agent. In a preferred version, a functionalized PTMEA-based polyurea or polyurea/urethane hybrid is produced using iscoyanates, polytrimethylene ether amines, or curing agents containing acid, ester, or ionic groups. Blends of polytrimethylene ether amine with other amine compounds such as amine-terminated hydrocarbons, polyethers, polyesters, polycarbonates, and polycaprolactones can be used. The composition can be prepared using prepolymer and one-shot manufacturing techniques. The composition may be used to form any layer in the golf ball structure and the resulting golf ball has improved resiliency and playing performance. | 06-02-2011 |
20110130221 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. | 06-02-2011 |
20110136589 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. | 06-09-2011 |
20110143863 | GOLF BALLS HAVING DUAL CORES MADE OF POLYBUTADIENE RUBBER / IONOMER BLENDS - A multi-piece golf ball comprising at least one component made of a polybutadiene rubber/ionomer resin blend is provided. The ball preferably contains a dual-core comprising an inner core and surrounding outer core layer. Preferably, the polybutadiene rubber/ionomer resin blend is used to form the outer core layer. The center hardness of the inner core is preferably greater than the outer surface hardness of the outer cover layer. The resulting ball has high resiliency and good impact durability. | 06-16-2011 |
20110143864 | POLYBUTADIENE RUBBER / IONOMER BLENDS FOR GOLF BALLS HAVING DUAL CORES AND COVERS - A multi-piece golf ball comprising at least one component made of a polybutadiene rubber/ionomer resin blend is provided. The ball preferably contains a dual-core comprising a center and surrounding outer core layer. The polybutadiene rubber/ionomer resin blend is used preferably to form the outer core layer. The ball further includes a cover comprising inner and outer cover layers. The surface hardness of the outer core layer is preferably greater than the material hardness of the inner cover layer. The resulting ball has high resiliency and good impact durability. | 06-16-2011 |
20110152009 | MULTI-LAYER CORE GOLF BALL - The present invention is directed to an improved multi-layer golf ball displaying enhanced playing characteristics, including high speed, high launch, and low spin. In general the golf ball displays improved performance in areas such as distance and feel for lower swing speed players. The ball has a relatively large solid inner core, with at least one solid outer core layer surrounding the inner core, and a thin cover layer surrounding the outermost core layer. The inner core is softer than the outer core, which in turn is softer than the cover. The ball may be designed such that the coefficient of restitution (COR) gradient is from slow to fast; that is, the inner core has a lower COR than the total core, which has a lower COR than the entire golf ball. | 06-23-2011 |
20110159996 | DUAL CORE GOLF BALL HAVING NEGATIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND SHALLOW POSITIVE-HARDNESS-GRADIENT THERMOSET OUTER CORE LAYER - A golf ball including a thermoplastic inner core and a thermoset outer core layer is described. The inner core has a surface hardness of 43 to about 65 Shore D and a center hardness of about 30 to 43 Shore D that is less than the surface hardness to define a positive hardness gradient. A cover includes an inner and outer cover layer. The thermoplastic inner core is formed from a highly-neutralized ionomer comprising a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer by 80% or greater. The outer core layer includes a polybutadiene rubber and has a surface hardness greater than an interior hardness by about 6 to 11 Shore D points to define a shallow positive hardness gradient. | 06-30-2011 |
20110159997 | DUAL CORE GOLF BALL HAVING NEGATIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND STEEP POSITIVE-HARDNESS-GRADIENT THERMOSET OUTER CORE LAYER - A golf ball includes an inner core layer formed from a thermoplastic material comprising a highly-neutralized ionomer comprising a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer by 80% or greater. The inner core has a geometric center hardness less than its surface hardness to define a positive hardness gradient. An outer core layer is formed over the inner core and is formed from a substantially homogenous thermoset composition. The outer core layer has an interior hardness substantially less than an outer surface hardness to define a steep positive hardness gradient. An inner cover layer and an outer cover layer are formed over the outer core layer. | 06-30-2011 |
20110165966 | MULTI-LAYER CORE GOLF BALL - The present invention is directed to an improved golf ball displaying the desired spin profile and having a generally rigid, thermoset polybutadiene outer core surrounding a relatively soft, low compression inner core. In general, this golf ball has an inner core and at least one outer core layer surrounding the inner core. The inner core has a hardness less than a hardness of the outer core and a specific gravity less than or equal to the outer core specific gravity. Overall the inner core compression and outer core are formulated to provide a combined overall core compression of greater than about 50, preferably greater than about 70. A cover layer is provided to surround and to cover the outer core layer. | 07-07-2011 |
20110207556 | GOLF BALLS BASED ON THERMOPLASTIC POLYURETHANES COMPRISING MOISTURE-RESISTANT POLYOLS - Golf balls containing at least one layer made from a thermoplastic polyurethane or polyurethane-urea that is the reaction product of a polyisocyanate with moisture-resistant polyol and a curing agent are provided. The moisture-resistant polyol may be prepared by dimerizing unsaturated aliphatic monocarboxylic acid or ester containing 10 to 60 carbon atoms followed by reacting it with a monomeric, oligomeric, or polymeric diol. In one preferred version, the moisture-resistant polyol is a branched polyester polyol containing 36 carbon atoms. The composition can be prepared using prepolymer or one-shot manufacturing techniques. The resulting golf ball has desirable playing performance properties including high resiliency, toughness, impact durability, moisture-resistance, and soft feel. | 08-25-2011 |
20110218054 | RUBBER OUTER COVERS FOR GOLF BALLS BASED ON ETHYLENE-PROPYLENE DIENE COPOLYMERS - A multi-piece golf ball comprising at least one component made of an ethylene-propylene diene copolymer (EPDM) rubber is provided. The multi-piece golf ball includes a cover, preferably a dual-cover having inner and outer cover layers. The outer cover is preferably made of the EPDM rubber material. The golf ball further includes an inner core, preferably a dual-core containing a center and surrounding outer core layer. The center may be made of a polybutadiene rubber composition and the outer core layer may be made of an EPDM rubber composition. The resulting golf ball has high resiliency, a soft feel, and good weatherability. | 09-08-2011 |
20110218055 | RUBBER CORES FOR GOLF BALLS BASED ON ETHYLENE-PROPYLENE DIENE COPOLYMERS - A multi-piece golf ball comprising at least one component made of an ethylene-propylene diene copolymer (EPDM) rubber is provided. The multi-piece golf ball includes a center and at least one surrounding core layer. The inner core is preferably made of polybutadiene rubber and the outer core layer is preferably made of an EPDM rubber composition. Preferably, the center hardness of the inner core is greater than the surface hardness of the outer core layer. The golf ball includes a cover of at least one layer, preferably a dual-cover having inner and outer cover layers. The resulting ball has high resiliency and a soft feel. | 09-08-2011 |
20110218056 | MULTI-LAYER COVER GOLF BALL HAVING THERMOSET RUBBER INTERMEDIATE COVER LAYER - A golf ball including a core and a cover including a thermoplastic inner cover layer having a material hardness of 60 to 80 Shore D; a thermoset outer cover layer comprising a castable polyurea and having a material hardness of 20 to 60 Shore D; and a thermoset intermediate cover layer disposed between the inner and outer cover layers and having a hardness substantially the same as the inner cover layer hardness and greater than the outer cover layer hardness. The inner cover includes one or more high- or low-acid ionomers and, optionally, a maleic anhydride modified polyolefin. The intermediate layer is formed from a castable liquid polybutadiene rubber. | 09-08-2011 |
20110218057 | GOLF BALL WITH NEGATIVE HARDNESS GRADIENT CORE - A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner core region disposed about the geometric center, an outer core region adjacent the outer surface, and an intermediate core region disposed between the inner and outer core regions and extending radially from about 8 mm to about 18 mm from the geometric center. The single layer core has first, second and third hardnesses disposed within the inner core region, outer core region, intermediate core region, respectively, wherein the third hardness is greater than the first hardness and the second hardness, and a hardness of the outer surface is substantially the same as or lower than a hardness of the geometric center. | 09-08-2011 |
20110224022 | MULTI-LAYER CORE GOLF BALL HAVING OPPOSING HARDNESS GRADIENT WITH STEEP GRADIENT INNER CORE LAYER - A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous rubber composition, the rubber composition comprising a base rubber and a resorcinol such that the geometric center has a hardness of 50 to 60 Shore C and the outer surface has a hardness of 85 to 95 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 50 to 75 Shore C, an inner surface having a hardness of 51 to 76 Shore C, and is formed from a substantially homogenous composition. A cover layer is disposed about the outer core layer. The hardness of the inner core outer surface is greater than the hardness of the geometric center to define a positive hardness gradient of greater than 20 Shore C, and the hardness of the outer core outer surface is lower than the hardness of its inner surface to define a negative hardness gradient of −1 to −5 Shore C. | 09-15-2011 |
20110230280 | GOLF BALL WITH NEGATIVE HARDNESS GARDIENT CORE - A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner core region disposed about the geometric center, an outer core region adjacent the outer surface, and an intermediate core region disposed between the inner and outer core regions and extending radially from about 8 mm to about 18 mm from the geometric center. The single layer core has first, second and third hardnesses disposed within the inner core region, outer core region, intermediate core region, respectively, wherein the third hardness is greater than the first hardness and the second hardness, and a hardness of the outer surface is substantially the same as or lower than a hardness of the geometric center. | 09-22-2011 |
20110237349 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - A golf ball comprising a core and at least one cover layer disposed about the core, the core comprising a geometric center and an outer surface, the core further comprising an untreated region extending radially from the geometric center a predetermined distance D | 09-29-2011 |
20110237350 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - A golf ball comprising a core and at least one cover layer disposed about the core; the core comprising a geometric center and an outer surface, the core further comprising an untreated region extending radially from the geometric center a distance D | 09-29-2011 |
20110237351 | DUAL CORE GOLF BALL HAVING NEGATIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND SHALLOW POSITIVE-HARDNESS-GRADIENT THERMOSET OUTER CORE LAYER - A golf ball includes an inner core layer formed from a thermoplastic material. The inner core has a hardness at the center that is greater than the hardness at the surface to define a negative hardness gradient. An outer core layer is disposed about the inner core. The outer core has a surface hardness that is greater than the surface hardness of the inner core to define a positive hardness gradient. An inner cover layer and an outer core layer are formed over the outer core layer. The negative hardness gradient of the inner core is about −1 to −5 Shore C, the positive hardness gradient of the outer core layer is less than 25 Shore C, the surface hardness of the outer core layer is about 45 Shore D to about 70 Shore D, and the surface hardness of the inner core is about 20 Shore D to about 60 Shore D. | 09-29-2011 |
20110237352 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 09-29-2011 |
20110237353 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoset rubber first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. The inner core is preferably formed from a softer rubber than the first intermediate core layer. | 09-29-2011 |
20110237354 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoset rubber first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. The inner core is preferably formed from a harder rubber than the first intermediate core layer. | 09-29-2011 |
20110237355 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball having a reduced distance while maintaining the appearance of a normal high performance trajectory. The golf ball has a core, an inner cover layer, and a cover. The core has a diameter of from about 1.300 to 1.620 inches, while the ball has a weight from 1.30 to 1.620 ounces, a diameter from 1.670 to 1.800 inches and a maximum Coefficient of Restitution from about 0.600 to about 0.790 as measured at 125 ft/sec incoming ball velocity. The ball has a lift to weight ratio of greater than 1.9 at a Reynolds number of about 230,000 and a spin ratio of about 0.085. | 09-29-2011 |
20110237356 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball having a reduced distance while maintaining the appearance of a normal high performance trajectory. The golf ball has a core, an inner cover layer, and a cover. The core has a diameter of from about 1.300 to 1.620 inches, while the ball has a weight from 1.30 to 1.620 ounces, a diameter from 1.670 to 1.800 inches and a maximum Coefficient of Restitution from about 0.600 to about 0.790 as measured at 125 ft/sec incoming ball velocity. The ball has a drag to weight ratio of greater than 3.0 at a Reynolds number of about 230,000 and a spin ratio of about 0.085. | 09-29-2011 |
20110244988 | GOLF BALLS HAVING AT LEAST TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 10-06-2011 |
20110250990 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of an inner core layer formed from a high modulus HNP composition and an outer core layer formed from a low modulus HNP composition. The outer core layer has an outer surface hardness less than the outer surface hardness of the inner core layer. | 10-13-2011 |
20110256961 | THERMOSET POLYURETHANES BASED ON MOISTURE-RESISTANCE POLYOLS FOR USE IN GOLF BALLS - Golf balls containing at least one layer made from a thermoset polyurethane or polyurethane-urea that is the reaction product of a polyisocyanate with moisture-resistant polyol and a curing agent are provided. The moisture-resistant polyol may be prepared by dimerizing unsaturated aliphatic monocarboxylic acid or ester containing 10 to 60 carbon atoms followed by reacting it with a monomeric, oligomeric, or polymeric diol. In one preferred version, the moisture-resistant polyol is a branched polyester polyol containing 36 carbon atoms. The composition can be prepared using prepolymer or one-shot manufacturing techniques. The thermoset composition has good cross-link density. The resulting golf ball has desirable playing performance properties including high resiliency, toughness, impact durability, moisture-resistance, and soft feel. | 10-20-2011 |
20110256962 | GOLF BALLS HAVING AT LEAST TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard rubber intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 10-20-2011 |
20110269574 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 11-03-2011 |
20110275456 | DUAL CORE GOLF BALL HAVING POSITIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND SHALLOW NEGATIVE-HARDNESS-GRADIENT OUTER CORE LAYER - A golf ball includes a thermoplastic inner core layer having a geometric center hardness less than a surface hardness to define a “positive hardness gradient.” An outer core layer is disposed about the inner core, the outer core being formed from a thermoset rubber composition and having a surface hardness less than a hardness at a point about 0.5 to 2 mm from an interface between the inner core and the outer core layer to define a shallow “negative hardness gradient.” An inner cover layer is formed over the outer core layer and an outer cover layer is formed over the inner cover layer. The “positive hardness gradient” of the inner core is up to about 10 Shore C and the shallow “negative hardness gradient” of the outer core layer is less than about 10 Shore C. | 11-10-2011 |
20110281668 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. | 11-17-2011 |
20110287860 | MULTI-LAYER CORE GOLF BALL HAVING THERMOSET RUBBER COVER - A golf ball with one or more thermosetting rubber core layers, intermediate layers and cover layers. At least one of the ball's layers has a moisture vapor barrier property, and the thermosetting rubber layers follow a cis- or a trans-polybutadiene gradient from the center of the ball to its cover. Each of the core layer, intermediate layer and cover layer comprises a cross-linked thermoset rubber composition having a primary rubber component of polybutadiene having a polydispersity of no greater than about 2 or a weight average molecular weight M | 11-24-2011 |
20110287861 | MULTI-LAYER CORE GOLF BALL HAVING OPPOSING HARDNESS GRADIENT WITH STEEP GRADIENT OUTER CORE LAYER - A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous composition such that the geometric center has a hardness of 56 to 80 Shore C and the outer surface has a hardness of 50 to 75 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 85 to 98 Shore C and an inner surface having a hardness of 68 to 78 Shore C and being formed from a second substantially homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −15 Shore C. | 11-24-2011 |
20110294600 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. | 12-01-2011 |
20110300969 | GOLF BALLS HAVING TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting essentially of a dual-layer core and a cover. The core includes a center having a center hardness of 50 Shore C or greater and formed from a first HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a second HNP composition. The first HNP composition has a material hardness of 55 Shore D or less and comprises a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer. The second HNP composition has a material hardness of 45 Shore D or greater and comprises a highly neutralized ethylene/(meth)acrylic acid copolymer. The material hardness of the first HNP composition is less than the material hardness of the second HNP composition. The cover includes an inner cover layer and an outer cover layer. | 12-08-2011 |
20110300970 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a low modulus HNP composition and at least one layer formed from a high modulus HNP composition. | 12-08-2011 |
20110312441 | DUAL CORE GOLF BALL HAVING A SHALLOW "POSITIVE HARDNESS GRADIENT" THERMOPLASTIC INNER CORE AND A STEEP "POSITIVE HARDNESS GRADIENT" THERMOSET OUTER CORE LAYER - A golf ball including a highly-neutralized thermoplastic inner core layer having a geometric center hardness less than a surface hardness to define a first hardness gradient, an outer core layer formed from a homogenous thermoset composition and having an interior hardness substantially less than an outer surface hardness to define a second hardness gradient, an inner cover layer, and an outer cover layer. Both the first and second hardness gradients are positive and a slope of the second hardness gradient is greater than a slope of the first hardness gradient to define a shallow hardness gradient inner core and a steep hardness gradient outer core layer. | 12-22-2011 |
20110312442 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center and an outer core layer that are both soft relative to a hard intermediate core layer. The Shore C hardness of the outer surface of the center is preferably less than the Shore C hardness of the geometric center of the center. | 12-22-2011 |
20110312443 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center and an outer core layer that are both soft relative to a hard intermediate core layer. The Shore C hardness of the outer surface of the center is preferably greater than the Shore C hardness of the geometric center of the center. | 12-22-2011 |
20110312444 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a zero or negative hardness gradient center that is hard relative to an intermediate core layer. The overall core preferably has a zero hardness gradient, a negative hardness gradient, or a positive hardness gradient of up to 20 Shore C units. | 12-22-2011 |
20110312445 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a zero or positive hardness gradient center that is hard relative to an intermediate core layer. The overall core preferably has a zero hardness gradient, a negative hardness gradient, or a positive hardness gradient of up to 20 Shore C units. | 12-22-2011 |
20110312446 | HIGH PERFORMANCE GOLF BALL HAVING A REDUCED-DISTANCE - A golf ball having a reduced distance while maintaining the appearance of a normal high performance trajectory. The golf ball has a core, an inner cover layer, and a cover. The core has a diameter of from about 1.300 to 1.620 inches, while the ball has a weight from 1.30 to 1.620 ounces, a diameter from 1.670 to 1.800 inches and a maximum Coefficient of Restitution from about 0.600 to about 0.790 as measured at 125 ft/sec incoming ball velocity. The ball has a drag to weight ratio of greater than 2.4 at a Reynolds number of about 207,000 and a spin ratio of about 0.095. | 12-22-2011 |
20110319194 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 12-29-2011 |
20110319195 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 12-29-2011 |
20120004051 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 01-05-2012 |
20120010022 | MULTI-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer formed from a thermoset rubber composition and having a first surface hardness; a thermoplastic outer core layer having a second surface hardness, an inner surface hardness, and being formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer; an inner cover layer; and an outer cover layer; wherein the first surface hardness is less than the second surface hardness by at least 5 Shore C and less than the inner surface hardness by at least 5 Shore C. | 01-12-2012 |
20120010023 | MULTI-LAYER-CORE GOLF BALL HAVING HIGHLY NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer formed from a thermoset rubber composition and having a first surface hardness; a thermoplastic outer core layer having a second surface hardness, an inner surface hardness, and being formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer; an inner cover layer; and an outer cover layer; wherein the first surface hardness is less than the second surface hardness by at least 5 Shore C and less than the inner surface hardness by at least 5 Shore C. | 01-12-2012 |
20120040777 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a thermoset rubber inner core, a thermoplastic first intermediate core layer, a thermoplastic second intermediate core layer, and a thermoset rubber outer core layer. | 02-16-2012 |
20120040778 | GOLF BALL SURFACE PATTERNS COMPRISING A CHANNEL SYSTEM - A golf ball having an improved surface pattern is disclosed. The golf ball has one or more channels on its surface. The channels form spherical polygonal tiles that may include a plurality of dimples. These dimples may be circular or polygonal in shape. | 02-16-2012 |
20120046124 | GOLF BALLS CONTAINING VISIBLE DECORATIVE INSERTS ENCLOSED IN TRANSPARENT LAYERS - Golf balls containing a composite layer comprising a substantially transparent polymeric matrix with at least one embedded decorative insert member (for example, charm or jewelry piece) are provided. The ball further includes a core that may comprise a reflective material such as white pigment. A cover structure comprising a second substantially transparent polymeric matrix surrounds the composite layer. The decorative insert can be seen through the layers. Various light-reflective fillers, color pigments, and dyes may be added to the layers to create different optical effects. The resulting ball has an aesthetically pleasing appearance while maintaining its good playing performance properties. | 02-23-2012 |
20120046125 | GOLF BALLS CONTAINING VISIBLE DECORATIVE INSERTS PLACED BETWEEN TRANSPARENT LAYERS - Golf balls containing a core having at least one layer; a composite layer comprising a first substantially transparent polymeric matrix; and a cover comprising a second substantially transparent polymeric matrix are provided. The ball contains at least one decorative insert member that can be seen through the layers. The decorative insert (for example, charm or jewelry piece) is sandwiched between the composite and cover layers. One portion of the insert is embedded in each layer. Light-reflective fillers, colored pigments, and dyes may be added to the layers to create different optical effects. The resulting ball has a unique and appealing appearance while maintaining its good playing properties. | 02-23-2012 |
20120077622 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a single-, dual-, or multi-layer cover are disclosed. The multi-layer core comprises a thermoplastic center and a thermoplastic outer core layer that are both soft relative to a hard, thermoset intermediate core layer. | 03-29-2012 |
20120077623 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a layer formed from a highly neutralized polymer composition, a layer formed from an additional thermoplastic composition, and an outermost layer formed from a thermoset rubber. | 03-29-2012 |
20120088605 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls comprising a dual-layer core and a cover. The core comprises a center formed from a high modulus HNP composition, and an outer core layer formed from a low modulus HNP composition. Low modulus HNP compositions of the present invention have a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention have a modulus of from 25,000 psi to 150,000 psi. The modulus of the highly neutralized copolymer of the low modulus HNP is at least 10% less than the modulus of the highly neutralized copolymer of the high modulus HNP composition. The cover comprises an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 04-12-2012 |
20120088606 | MULTI-LAYER GOLF BALL HAVING THERMOPLASTIC VULCANIZED ELASTOMERS FORMING INNER COVER OR INTERMEDIATE COVER LAYERS - A golf ball including a core and a cover disposed about the core, the cover comprising three layers, an inner cover layer, an intermediate layer, and an outer cover layer. The core having a first hardness, the inner cover layer having a second hardness, and the intermediate layer having a third hardness, wherein the ratio of the second hardness to the third hardness is between 0.70 to 0.97 and at least one of the inner cover layer or the intermediate layer being formed from a rigid thermoplastic vulcanized elastomer composition. | 04-12-2012 |
20120088608 | GOLF BALL SURFACE PATTERNS COMPRISING VARIABLE WIDTH/DEPTH MULTIPLE CHANNELS - A golf ball having an improved surface pattern is disclosed. The golf ball has one or more bands on its surface. These bands may be either channels or raised beads. The bands have variable widths and/or heights/depths, either within the same band or between bands. These bands may decrease drag, or may increase lift. These bands may be linear, or may be curved, and may or may not fully circumscribe the golf ball. These channels or ridges may also be combined with traditional or non-traditional dimples. | 04-12-2012 |
20120094784 | GOLF BALL WITH SINGLE THERMOPLASTIC COVER LAYER OF HETEROGENEOUS COMPOSITION - The invention relates generally to golf balls, and more specifically, to a golf ball having a single cover layer that is comprised of a blend of two or more distinct resinous materials. | 04-19-2012 |
20120100936 | GOLF BALL INCLUDING A LONG-CHAIN BRANCHED NEODYMIUM-CATALYZED POLYBUTADIENE COMPONENT - The invention is directed to a golf ball comprising a long-chain branched neodymium-catalyzed polybutadiene having a cis-1,4 content of at least about 96% and a solution viscosity of less than 165 mPa·s, wherein the overall golf ball comprises a COR of at least about 0.780 and an Atti compression of from about 25 to about 120. The invention is also directed to a golf ball comprising a core, a cover and optionally an intermediate layer disposed between the core and the cover; wherein at least one of said core, cover and intermediate layer comprises a polybutadiene composition comprising a long-chain branched neodymium-catalyzed polybutadiene having a cis-1,4 content of at least about 96% and a solution viscosity of less than 165 mPa·s. In another embodiment, the golf ball comprises a core, a cover and optionally an intermediate layer disposed between the core and the cover; wherein said core comprises a polybutadiene composition comprising a long-chain branched neodymium-catalyzed polybutadiene having a cis-1,4 content of at least about 96% and a solution viscosity of less than 165 mPa·s. | 04-26-2012 |
20120115633 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115634 | GOLF BALL COMPOSITIONS - Disclosed herein are hard and flexible compositions, i.e., compositions which have a flexural modulus that is less than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115635 | GOLF BALL COMPOSITIONS - Disclosed herein are hard and flexible compositions, i.e., compositions which have a flexural modulus that is less than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115636 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115639 | GOLF BALL COMPOSITIONS - Disclosed herein are hard and flexible compositions, i.e., compositions which have a flexural modulus that is less than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115640 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115642 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115643 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115644 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115645 | GOLF BALL COMPOSITIONS - Disclosed herein are hard and flexible compositions, i.e., compositions which have a flexural modulus that is less than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115646 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115647 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120115648 | Golf ball with single layer core having specific regions of varying hardness - A golf ball comprising a single layer core being formed from a substantially homogenous formulation, the inner core region has a first hardness (IC | 05-10-2012 |
20120115649 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-10-2012 |
20120122608 | GOLF BALL COMPOSITIONS - Disclosed herein are soft and stiff compositions, i.e., compositions which have a flexural modulus that is greater than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula | 05-17-2012 |
20120122610 | GOLF BALL HAVING A THERMOPLASTIC POSITIVE HARDNESS GRADIENT INNER CORE LAYER AND A THERMOSET SHALLOW POSITIVE HARDNESS GRADIENT OUTER CORE LAYER - A golf ball has an inner core layer including a thermoplastic highly-neutralized ionomer and having a geometric center hardness less than a surface hardness to define a first positive hardness gradient. An outer core layer is formed about the inner core and includes a homogenous thermoset composition. The outer core has an interior hardness less than an outer surface hardness to define a second positive hardness gradient. An inner and outer cover layers are disposed about outer core layer. The first and second hardness gradients each have a slope and the slope of the second hardness gradient is less than the slope of the first hardness gradient such that a ratio of the first and second slopes is 0.8 to 0.85. | 05-17-2012 |
20120122612 | GOLF BALLS COMPRISING HIGHLY- AND PARTIALLY-NEUTRALIZED ALTERNATE COPOLYMERS - A golf ball includes a core having a diameter, a first Shore D hardness and a compression; and a cover having a second Shore D hardness that is at least 5 points less than the first Shore D hardness. The cover includes an ionomer of an alternate copolymer, the alternate copolymer being formed from the reaction product of a copolymer of ethylene and maleic anhydride monomer in the presence of a suitable base, the maleic anhydride monomer being present in an amount of about 78 wt %. | 05-17-2012 |
20120129631 | GOLF BALLS HAVING TRANSLUCENT COVERS FORMED OF AROMATIC AND ALIPHATIC POLYURETHANES - Golf balls having multi-layered covers, wherein at least one of the cover layers is substantially transparent, are provided. The cover includes an inner cover layer made of an ionomer composition; an intermediate cover layer made of an aromatic polyurethane composition; and outer cover layer made of an aliphatic polyurethane composition, wherein the total thickness of the multi-layered cover is no greater than 0.110 inches. In one version, the outer cover layer is substantially transparent and the underlying intermediate cover layer is colored. In another version, both the outer and intermediate cover layers are substantially transparent. Light-reflective fillers such as pearlescent pigments, glitter, and metallics may be added to the cover layers. The resulting ball has pleasing decorative effects. | 05-24-2012 |
20120129632 | GOLF BALLS HAVING MULTI-LAYERED COVERS BASED ON AROMATIC AND ALIPHATIC POLYURETHANES - Golf balls having multi-layered covers are provided. The cover includes an inner cover layer made of an ionomer composition; an intermediate cover layer made of an aromatic polyurethane composition; and outer cover layer made of an aliphatic polyurethane composition, wherein the total thickness of the multi-layered cover is no greater than 0.110 inches. Preferably, the thickness of the inner cover layer is 0.010 to 0.050 inches; the thickness of the intermediate cover layer is 0.010 to 0.040 inches; and thickness of the outer cover layer is 0.004 to 0.020 inches. The invention also includes methods for making such multi-layered covers. The resulting ball has good light-stability, cut/shear-resistance, and impact durability. | 05-24-2012 |
20120149497 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. | 06-14-2012 |
20120149498 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a large center and a thin outer core layer that are both soft relative to a hard, thin intermediate core layer. | 06-14-2012 |
20120157230 | GOLF BALL LAYERS BASED ON POLYALKENAMER / IONOMER / POLYAMIDE BLENDS - Multi-piece golf balls containing a core of at least one layer and cover of at least one layer are provided. At least one component is formed from a rubber composition comprising: i) about 10 to about 65 weight percent of a cycloalkene rubber having a trans-content of about 55% or greater and a melting point of 30° C. or greater; ii) about 30 to about 80 weight percent of an ionomeric resin; and 3) about 5 to about 40 weight percent of a polyamide. The rubber composition may further include other thermoplastic and thermosetting materials such as, for example, polybutadiene, polyisoprene, ethylene propylene rubber, ethylene propylene diene rubber, and styrene-butadiene rubber. The rubber composition helps improve resiliency, durability, scuff-resistance, and feel of the ball. | 06-21-2012 |
20120157231 | GOLF BALL LAYERS BASED ON IONOMERS MADE WITH POLYALKENAMER CARRIERS - Golf balls containing a core having at least one layer and cover having at least one layer are provided. A thermoplastic ionomeric composition is used to form at least one layer of the ball. The composition is prepared by providing a masterbatch comprising cycloalkene (polyalkenamer) rubber and neutralizing agent and mixing the masterbatch with ethylene acid copolymer. The acid groups are neutralized to 30 weight percent or greater, preferably 50% or greater, and more preferably 70% or greater. The resulting ball has high resiliency and rebounding properties along with a soft feel. | 06-21-2012 |
20120157236 | GOLF BALL CORES BASED ON POLYALKENAMER AND POLYBUTADIENE RUBBER BLENDS - Golf balls containing a core comprising a blend of: a) about 1 to about 49 weight percent of a polybutadiene rubber having a relatively high Mooney viscosity, and b) about 51 to about 99 weight percent of a polyalkenamer rubber having a relatively low Mooney viscosity are provided. Single or multi-layered cores may be prepared. In addition, the golf ball includes a cover that may be single or multi-layered. The cover is preferably made of polyurethanes, polyureas, or blends thereof. The polyalkenamer/polybutadiene rubber composition helps provide the ball with high resiliency along with a soft feel. | 06-21-2012 |
20120165124 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The surface hardness of the outer core layer is greater than the material hardness of the inner cover layer, and is preferably 75 Shore C or greater. | 06-28-2012 |
20120165125 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. | 06-28-2012 |
20120184396 | MULTI-LAYER CORE GOLF BALL - Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer. The innermost core layer is relatively small, having a diameter of from 0.50 inches to 1.30 inches. | 07-19-2012 |
20120196705 | MULTI-PIECE GOLF BALL COMPRISING LOW HARDNESS GRADIENT CORE - A golf ball includes a single core formed from a substantially homogenous rubber composition, an inner cover disposed about the core, and an outer cover. The inner cover includes an ionomeric material and has a hardness of about 60 Shore D or greater. The outer cover layer is disposed about the inner cover layer, is formed from a castable polyurea or polyurethane, and has a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C, the geometric center of the core has a trans content of about 10% or less and a hardness of about 70 to 80 Shore C, and the core surface hardness is greater than the geometric center hardness by about 1 to 10 Shore C to define a shallow positive hardness gradient. | 08-02-2012 |
20120220391 | GOLF BALLS HAVING A MULTI-LAYERED CORE WITH A THERMOSET RUBBER CENTER - Multi-piece golf balls having a multi-layered solid core and cover of at least one layer are provided. In one preferred embodiment, a five-piece ball is formed. The center of the core is made of a thermoset rubber material. Three intermediate layers of thermoplastic material enclose the center. The outer cover layer is made of a composition comprising a polyurethane, polyurea, or copolymer or blend thereof. The finished ball has high resiliency and rebounding properties. | 08-30-2012 |
20120220392 | GOLF BALLS HAVING A MULTI-LAYERED COVER WITH A THERMOPLASTIC INNER COVER LAYER - Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided. In one version, a five-piece ball is formed, wherein the inner cover layer is made of a thermoplastic composition such as a highly neutralized (HNP) composition. The outer cover layer is made of a composition comprising a polyurethane, polyurea, or copolymer or blend thereof. In a second version, a six-piece ball having inner and intermediate cover layers that also can be made of HNP compositions is produced. The five and six-piece balls also include multi-layered core structures with a center made of a thermoset rubber. The finished balls have high resiliency and rebounding properties. | 08-30-2012 |
20120220393 | GOLF BALL WITH SINGLE LAYER CORE HAVING SPECIFIC REGIONS OF VARYING HARDNESS - A golf ball comprising a single layer core formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, and a cover layer disposed thereabout. The single layer core has an inner core region disposed about the geometric center and an outer core region that is disposed about the inner core region and is adjacent the outer surface, the outer core region having a thickness of about 15 mm or less. The inner core region has a hardness that increases radially from the geometric center toward the outer core region in a plurality of increments of about 5 Shore C. The inner core region has a first hardness (IC | 08-30-2012 |
20120231898 | GOLF BALL COMPRISING FLUORINATED SILANE-TREATED FILLER TO PROMOTE MOISTURE RESISTANCE - The invention is directed to a golf ball comprising a core, a cover and optionally an intermediate layer disposed between the core and the cover, wherein at least one of the core, the intermediate layer and the cover comprises a moisture vapor barrier layer formed from a moisture vapor barrier composition comprising at least one diene rubber and at least one fluorinated silane treated filler. The filler is hydrophobically modified by fluorinated silane, a hydrophobizing material capable of rendering the surfaces of the silica particles suitably hydrophobic. This moisture vapor barrier composition, which may be incorporated in the golf ball prior to molding, protects the encased inner golf ball components from moisture penetration which damages the golf ball and deteriorates desired golf ball characteristics. Such a golf ball preserves and even enhances optimum golf ball properties and desired golf ball characteristics such as high spin, resilience and durability which may be negatively influenced or impacted by unintended changes in golf ball component compression, COR and hardness due to moisture invasion. The golf ball may comprise an untreated region and a treated outer surface, the treated outer surface having a moisture vapor transmission rate X and the untreated region having a moisture vapor transmission rate Y, the treated outer surface being treated with and comprising a moisture vapor barrier composition formed from at least one diene rubber and at least one fluorinated silane treated filler such that X09-13-2012 | |
20120238379 | GOLF BALL WITH A NON-IONOMERIC INNER COVER, STIFF TPU INTERMEDIATE COVER, AND CAST THERMOSET OUTER COVER - A golf ball including a core and a cover disposed about the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a stiff intermediate cover layer disposed between the inner and outer cover layers and having a hardness greater than the inner cover layer and the outer cover layer. The inner cover layer is formed from a non-ionomeric composition including a non-ionomeric stiffening polymer and at least one E/Y copolymer or E/X/Y terpolymer, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer. The intermediate cover layer is formed from a stiff thermoplastic polyurethane or polyurea composition and the cover outer cover layer is formed from a thermoset polyurethane, a polyurea, or a urethane-urea blend. | 09-20-2012 |
20120252603 | THREE-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball including an inner core layer formed from a thermoset rubber composition and having a first surface hardness; a thermoplastic outer core layer having a second surface hardness, an inner surface hardness, and being formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to fully-neutralize the acid groups of the copolymer; an inner cover layer; and an outer cover layer; wherein the first surface hardness is substantially the same as the second surface hardness and the inner surface hardness. | 10-04-2012 |
20120261859 | PROCESS FOR MANUFACTURING GOLF BALLS HAVING A MULTI-LAYERED COVERS - The invention is directed to a process for making a golf ball having a multi-layered cover including a very thin outermost cover layer, the process comprising for example: forming first and second substantially hemispherical half shells having a thickness and comprising a thermoplastic composition, each half shell further having an outer surface and an inner surface, the inner surface forming an hemispherical cavity; securing the first half shell in a golf ball mold; securing a core subassembly in a subassembly holder; dispensing an uncured liquid thermoset composition into the hemispherical cavity of the first half shell; inserting a first half of the core subassembly into the hemispherical cavity of the first half shell and displacing an amount of the uncured liquid thermoset composition such that the uncured liquid thermoset composition forms an inner cover layer having a thickness; disengaging the core subassembly from the subassembly holder when the thermoset composition has gelled to a point of rigidity; securing the second half shell in a golf ball mold; dispensing the uncured liquid thermoset composition into the hemispherical cavity of the second half shell; inserting a second half of the core subassembly into the hemispherical cavity of the second half shell and displacing an amount of the uncured liquid thermoset composition such that the uncured liquid thermoset composition forms an inner cover layer having a thickness and thereby mating the first and second half shells; and curing the thermoset inner cover layer to complete the golf ball and then removing the resulting golf ball from the golf ball mold. | 10-18-2012 |
20120261860 | PROCESS FOR MANUFACTURING GOLF BALLS HAVING A MULTI-LAYERED COVERS - The invention is directed to a process for making a golf ball having a multi-layered cover including a very thin outermost cover layer, the process comprising for example: forming first and second substantially hemispherical half shells having a thickness and comprising a thermoplastic composition, each half shell further having an outer surface and an inner surface, the inner surface forming an hemispherical cavity; securing the first half shell in a golf ball mold; securing a core subassembly in a subassembly holder; dispensing an uncured liquid thermoset composition into the hemispherical cavity of the first half shell; inserting a first half of the core subassembly into the hemispherical cavity of the first half shell and displacing an amount of the uncured liquid thermoset composition such that the uncured liquid thermoset composition forms an inner cover layer having a thickness; disengaging the core subassembly from the subassembly holder when the thermoset composition has gelled to a point of rigidity; securing the second half shell in a golf ball mold; dispensing the uncured liquid thermoset composition into the hemispherical cavity of the second half shell; inserting a second half of the core subassembly into the hemispherical cavity of the second half shell and displacing an amount of the uncured liquid thermoset composition such that the uncured liquid thermoset composition forms an inner cover layer having a thickness and thereby mating the first and second half shells; and curing the thermoset inner cover layer to complete the golf ball and then removing the resulting golf ball from the golf ball mold. | 10-18-2012 |
20120264541 | DUAL-CORE COMPRISING ZERO GRADIENT CENTER AND POSITIVE GRADIENT OUTER CORE LAYER - A golf ball including an inner core having a geometric center and a first outer surface, the inner core being formed from a first substantially homogenous rubber composition, and an outer core layer formed from a second substantially homogenous rubber composition, the outer core layer having a second outer surface. An inner cover layer is formed over the core and includes an ionomeric material. An outer cover layer is formed over the inner cover layer and includes a castable polyurea or a castable polyurethane. The first outer surface has a hardness of up to about 20 Shore C less than a hardness at the geometric center to define a negative hardness gradient inner core and the second outer surface has a hardness of up to 18 Shore C greater than the geometric center hardness to define a positive gradient outer core layer and a shallow positive hardness gradient core. | 10-18-2012 |
20120270677 | VARIABLE DENSITY CORE GOLF BALLS - A golf ball is provided having a modified density gradient among the inner layers to produce a desired high or low moment of inertia and controlled spin rate is disclosed. The golf ball has three or more inner layers in addition to a cover, and the density of the inner layers is selected such that the layers inside the cover have a density progression from the core to the cover or from the cover to the core. | 10-25-2012 |
20120283040 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient. | 11-08-2012 |
20120295736 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. | 11-22-2012 |
20120309560 | MULTI-LAYERED CORES FOR GOLF BALLS BASED ON IONOMERS - Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. Thermoplastic ethylene acid copolymer ionomer compositions are used to form the core layers. Preferably, the ball contains a dual-core having an inner core and surrounding outer core layer. Low modulus and high modulus ionomer compositions may be used in the core structure. The ionomer compositions have varying levels of hardness. The resulting ball has high resiliency and rebounding properties. | 12-06-2012 |
20120309561 | GOLF BALLS HAVING AT LEAST TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a small, hard center enclosed by a soft intermediate core layer and an outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 12-06-2012 |
20120309562 | MULTI-LAYERED CORES FOR GOLF BALLS CONTAINING IONOMER AND NON-IONOMER LAYERS - Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the core layers comprises a thermoplastic ionomer composition and at least one of the core layers comprises a thermoplastic non-ionomer composition. Preferably, the ionomer composition is a highly neutralized ethylene acid copolymer. Preferably, the non-ionomer composition is a thermoplastic elastomer selected from polyester-polyether block copolymers, polyether-amide block copolymers, and blends thereof. The resulting ball has high resiliency and rebounding properties. | 12-06-2012 |
20120309563 | MULTI-LAYERED CORES FOR GOLF BALLS CONTAINING POLYAMIDE AND IONOMER LAYERS - Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the core layers comprises a thermoplastic ionomer composition, preferably a highly neutralized ethylene acid copolymer. And, at least one of the core layers comprises a thermoplastic polyamide composition. The ionomer composition is preferably used to form the inner core and the polyamide composition is preferably used to form the outer core layer. More preferably, the ionomer composition has a flex modulus of 80,000 psi or less and the polyamide composition has a flex modulus of 90,000 psi or greater. The resulting ball has high resiliency and rebounding properties. | 12-06-2012 |
20120322583 | DUAL CORE GOLF BALL HAVING NEGATIVE-HARDNESS-GRADIENT THERMOPLASTIC INNER CORE AND SHALLOW POSITIVE-HARDNESS-GRADIENT THERMOSET OUTER CORE LAYER - A golf ball includes an inner core layer formed from a thermoplastic material. The inner core has a center hardness at the center that is greater than the surface hardness at the surface to define a negative hardness gradient. An outer core layer is disposed about the inner core. The outer core has a surface hardness that is greater than the surface hardness of the inner core to define a positive hardness gradient. An inner cover layer and an outer core layer are formed over the outer core layer. The negative hardness gradient of the inner core is about −1 to −5 Shore C, the positive hardness gradient of the outer core layer is less than 25 Shore C, the surface hardness of the outer core layer is about 45 Shore D to about 70 Shore D, and the surface hardness of the inner core is about 20 Shore D to about 60 Shore D. | 12-20-2012 |
20120329576 | MULTI-LAYER CORE GOLF BALL HAVING OPPOSING HARDNESS GRADIENT WITH STEEP GRADIENT OUTER CORE LAYER - A golf ball comprising an inner core formed from a substantially homogenous composition such that the geometric center hardness is 56-80 Shore C and the outer surface hardness is 50-75 Shore C. An outer core layer has an outer surface having hardness of 85-98 Shore C and an inner surface hardness of 68-78 Shore C and being formed from a second homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −15 Shore C. | 12-27-2012 |
20130017907 | MULTI-LAYER GOLF BALL - Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer. | 01-17-2013 |
20130023357 | GOLF BALL COMPRISING A VERY-LOW MELT FLOW INNER COVER LAYER COMPOSITION - A golf ball including a core; an inner cover layer formed from a thermoplastic composition and having a thickness of about 0.005 inches to 0.40 inches and a surface hardness of about 60 Shore D or greater; and an outer cover layer formed from a thermoset material and having a thickness of about 0.01 inches to 0.05 inches and a surface hardness of about 60 Shore D or less. The thermoplastic composition has a first melt flow index at 280° C. under a 10-kg load of less than about 35 g/10 min and a second melt flow index at 265° C. under a 5-kg load of less than about 10 g/10 min. | 01-24-2013 |
20130029785 | MULTI-LAYERED CORES HAVING SELECTIVE WEIGHT DISTRIBUTION FOR GOLF BALLS - Multi-piece golf balls containing a multi-layered core or a dual-core are provided. The cores have selective weighting configurations (SWC). Particularly, the core layers are made of different compositions having different specific gravity levels or densities. Preferably, rubber and high neutralized ethylene acid copolymer compositions are used to form at least one layer in the core. The rubber and ionomer compositions may be loaded with fillers to adjust the specific gravity levels. The moment of inertia of the ball is adjusted and the resulting ball has good resiliency and spin control properties. | 01-31-2013 |
20130029789 | MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER - The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. | 01-31-2013 |
20130043618 | PROCESS FOR MANUFACTURING GOLF BALLS HAVING MULTI-LAYERED COVERS - The invention is directed to a processes for manufacturing golf balls having multi-layered covers including a very thin outermost thermoplastic cover layer and a thermoset uniformly contoured inner cover layer having a uniform thickness. | 02-21-2013 |
20130045820 | MULTI-LAYER CORE GOLF BALL - A golf ball comprising: an inner core having a compression of less than about 60; at least one outer core layer (surrounding the inner core or an optional intermediate layer) having a hardness of at least about 55 Shore D and a specific gravity greater than a specific gravity of the inner core; and a cover surrounding the outer core layer; at least one of the inner core, intermediate layer and outer core layer comprising a partially or fully neutralized ionomer; and the inner core having a hardness less than a hardness of the at least one outer core layer. Additionally, either the cover has a Shore D hardness of at least 60 and a specific gravity less than the specific gravity of the at least one outer core layer, or the inner core comprises a partially or fully neutralized ionomer and a specific gravity less than 1.0. | 02-21-2013 |
20130072322 | COMPOSITIONS FOR GOLF BALLS BASED ON ORIENTED NANOSTRUCTURES - Multi-piece golf balls having at least one component made of a rubber composition comprising substantially oriented nanostructures are provided. For example, the nanostructures may be in the form of nanofibers, nanorods, nanotubes, and nanoparticles. The multi-piece golf ball contains a core, which may have a dual-core construction including a center and surrounding outer core layer or other multi-layered structure. Preferably at least one of the core layers is formed from a polybutadiene rubber composition comprising the nanostructures. The polybutadiene rubber may be chemically or non-chemically modified. The polybutadiene preferably has a cis-bond content of at least 80%. | 03-21-2013 |
20130095956 | GOLF BALLS HAVING AT LEAST TWO CORE LAYERS FORMED FROM HNP COMPOSITIONS - The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard rubber intermediate core layer. The outer core layer is preferably thin relative to the center and the outer core layer. The multi-layer core includes at least one layer formed from a relatively soft HNP composition and at least one layer formed from a relatively hard HNP composition. | 04-18-2013 |
20130130836 | MULTI-PIECE GOLF BALL COMPRISING LOW HARDNESS GRADIENT CORE - A golf ball includes a single core formed from a substantially homogenous rubber composition, an inner cover disposed about the core, and an outer cover. The inner cover includes an ionomeric material and has a hardness of about 60 Shore D or greater. The outer cover layer is disposed about the inner cover layer, is formed from a castable polyurea or polyurethane, and has a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C, the geometric center of the core has a trans content of about 10% or less and a hardness of about 70 to 80 Shore C, and the core surface hardness is greater than the geometric center hardness by about 1 to 10 Shore C to define a shallow positive hardness gradient. | 05-23-2013 |
20130130837 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The surface hardness of the outer core layer is greater than the material hardness of the inner cover layer, and is preferably 75 Shore C or greater. | 05-23-2013 |
20130130840 | GOLF BALL WITH A NON-IONOMERIC INNER COVER, STIFF TPU INTERMEDIATE COVER, AND CAST THERMOSET OUTER COVER - A golf ball including a core and a cover disposed about the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a stiff intermediate cover layer disposed between the inner and outer cover layers and having a hardness greater than the inner cover layer and the outer cover layer. The inner cover layer is formed from a non-ionomeric composition including a non-ionomeric stiffening polymer and at least one E/Y copolymer or E/X/Y terpolymer, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer. The intermediate cover layer is formed from a stiff thermoplastic polyurethane or polyurea composition and the cover outer cover layer is formed from a thermoset polyurethane, a polyurea, or a urethane-urea blend. | 05-23-2013 |
20130137536 | MULTI-LAYER GOLF BALL - Golf balls consisting of a dual core and a dual cover are disclosed. The dual core consists of an inner core layer formed from a rubber composition and an outer core layer formed from a highly neutralized polymer composition. | 05-30-2013 |
20130143691 | GOLF BALLS HAVING A LOW MODULUS HNP LAYER AND A HIGH MODULUS HNP LAYER - The present invention is directed to golf balls consisting of a dual-layer core and a cover. The core consists of a center having a center hardness of 50 Shore C or greater and formed from a low modulus HNP composition, and an outer core layer having a surface hardness of 75 Shore C or greater and formed from a high modulus HNP composition. Low modulus HNP compositions of the present invention have a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention have a modulus of from 25,000 psi to 150,000 psi. The modulus of the highly neutralized copolymer of the low modulus HNP is at least 10% less than the modulus of the highly neutralized copolymer of the high modulus HNP composition. The cover consists of an inner cover layer formed from a thermoplastic composition and an outer cover layer formed from a polyurethane or polyurea composition. | 06-06-2013 |
20130157781 | GOLF BALL WITH SINGLE LAYER CORE HAVING SPECIFIC REGIONS OF VARYING HARDNESS - The invention is directed to a golf ball comprising: a single layer core and a cover layer disposed about the single layer core; the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein the outer surface has a hardness greater than a hardness of the geometric center; the single layer core further comprising: an inner core region disposed about the geometric center; an outer core region disposed about the inner core region and adjacent the outer surface; and a boundary disposed between the inner core region and the outer core region at about 12 mm or less from the outer surface; wherein the boundary has a hardness that is greater than the hardness of the geometric center and greater than the hardness of the outer surface. In another embodiment, the boundary has a hardness that is greater than the hardness of the geometric center and less than the hardness of the outer surface. | 06-20-2013 |
20130165266 | GOLF BALLS HAVING MULTI-LAYER CORES BASED ON POLYALKENAMER COMPOSITIONS - The present invention generally relates to golf balls and more particularly to golf balls having multi-layered cores comprising a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. A cover layer is disposed about the multi-layered core. At least one of the center, intermediate core layer, and outer core layer comprises a polyalkenamer rubber. The polyalkenamer rubber may be blended with other rubbers such as polybutadiene, polyisoprene, ethylene propylene diene, and styrene-butadiene rubbers. The polyalkenamer rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel. | 06-27-2013 |
20130225328 | GOLF BALLS CONTAINING LAYERS BASED ON POLYAMIDE AND FATTY ACID SALT BLENDS - Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the layers is formed from a thermoplastic polyamide composition, consisting essentially of a blend of about 40 to about 99% by weight polyamide and about 1 to about 60% by weight fatty acid salt. Preferably, the ball has a dual core construction. A rubber composition is preferably used to form the inner core and the polyamide composition is preferably used to form the outer core layer. The resulting ball has high resiliency along with a soft feel. | 08-29-2013 |
20130225331 | GOLF BALLS HAVING LAYERS BASED ON POLYAMIDE AND FATTY ACID AMIDE BLENDS - Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the layers is formed from a thermoplastic polyamide composition, comprising a blend of about 40 to about 99% by weight polyamide and about 1 to about 60% by weight fatty acid amide. Preferably, the ball has a dual core construction. A rubber composition is preferably used to form the inner core and the polyamide composition is preferably used to form the outer core layer. | 08-29-2013 |
20130260918 | GOLF BALL COMPRISING A CORE LAYER HAVING A HARDNESS GRADIENT AND TRANS GRADIENT - A golf ball includes a ‘dual core’ formed from an inner core layer and an outer core layer. The inner core has an outer surface and a center and is typically formed from a substantially-homogenous rubber composition such that the center of the core has a hardness of about 72 Shore C to about 78 Shore C and a trans content of about 5% to 9%, and the outer surface of the inner core has a trans content of about 5% to 9%. The trans content of the outer surface and the center of the inner core are preferably within 2% of each other and, more preferably are substantially the same to define a zero trans gradient along a radius of the inner core. | 10-03-2013 |
20130270745 | GOLF BALL WITH SINGLE THERMOPLASTIC COVER LAYER OF HETEROGENEOUS COMPOSITION - The present invention relates to a method of manufacturing a golf ball having a single cover layer of heterogeneous composition. One embodiment of the invention describes a method wherein a core, comprising one or more layers, has pre-molded hemispherical cover cups placed about the core and each cover cup has at least two layers of distinct resinous materials, and the cover cups are heated and compressed such that the resinous materials in the cover cups intermingle with each other to form a single heterogeneous cover layer. | 10-17-2013 |
20130274033 | THREE-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball includes an inner core layer formed from a thermoset rubber composition. The inner core layer has a first outer surface Shore D hardness and an outer diameter of about 0.8 to 1.40 inches. A thermoplastic outer core layer is formed around the inner core layer, has a second outer surface Shore D hardness, and is formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, a magnesium salt of oleic acid, and sufficient cation source to fully-neutralize the acid groups of the copolymer. The golf ball includes an inner cover layer and an outer cover layer. The first outer surface Shore D hardness is greater than the second outer surface Shore D hardness and the outer core layer has a thickness of about 0.01 inches to 0.05 inches. | 10-17-2013 |
20130281233 | GOLF BALL MATERIALS BASED ON BLENDS OF POLYAMIDE AND ACID ANHYDRIDE-MODIFIED POLYOLEFINS - Multi-piece golf balls having at least one layer made from a polyamide non-ionomeric composition are provided. The polyamide composition consist essentially of about 40 to about 99% by weight polyamide; about 1 to about 60% by weight of an acid anhydride-modified polyolefin; and about 1 to about 60% of a fatty acid additive selected from the group consisting of fatty acid salts, fatty acid amides, and mixtures thereof. The ball includes a core, preferably a dual core construction; and a cover of at least one layer. A rubber composition is preferably used to form the inner core and the polyamide composition is preferably used to form the outer core layer. The resulting ball has high resiliency along with a soft feel. | 10-24-2013 |
20130288826 | MULTI-LAYER CORE GOLF BALL - Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a thermoset composition other than diene rubber. | 10-31-2013 |
20130303310 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball includes a unitary core having an outer surface, a geometric center, and a soft transition region adjacent to the outer surface. The core is formed from a substantially homogenous rubber composition. The golf ball also includes an inner cover layer and an outer cover layer. The soft transition region has a thickness of up to 4 mm and a negative hardness gradient of up to 15 Shore C. The unitary core has an overall negative hardness gradient of up to 20 Shore C. | 11-14-2013 |
20130310198 | GOLF BALL CORE WITH SOFT OUTER TRANSITION VOLUME AND NEGATIVE HARDNESS GRADIENT - A golf ball includes a unitary core having an outer surface, a geometric center, and a soft transition region adjacent to the outer surface, and is formed from a substantially homogenous composition. The ball further includes an outer cover layer. The soft transition region has a thickness of up to 4 mm, has about 8 to 20 percent trans-polybutadiene isomer, and has a negative hardness gradient of up to 15 Shore C. The core has an overall negative hardness gradient of up to 20 Shore C and has a gradient quotient, GQ, defined by the equation: | 11-21-2013 |
20130344992 | GOLF BALL COMPOSITIONS - Disclosed herein are heterogeneous golf ball compositions comprising a thermoplastic matrix and discrete particles of crosslinked polymer dispersed within the matrix. | 12-26-2013 |
20130344993 | GOLF BALL COMPOSITIONS - Disclosed herein are heterogeneous golf ball compositions comprising a thermoplastic matrix and discrete particles of crosslinked polymer dispersed within the matrix. | 12-26-2013 |
20140004974 | GOLF BALLS HAVING CORES MADE OF POLYBUTADIENE RUBBER BLENDS | 01-02-2014 |
20140066228 | GOLF BALL COMPOSITIONS - Disclosed herein are heterogeneous golf ball compositions comprising a thermoplastic polymer matrix and discrete particles of thermoplastic polymer dispersed within the matrix. | 03-06-2014 |
20140073453 | GOLF BALL COMPOSITIONS - Disclosed herein are heterogeneous golf ball compositions comprising a thermosetting polymer matrix and discrete particles of thermoplastic polymer dispersed within the matrix. | 03-13-2014 |
20140073456 | GOLF BALLS HAVING DUAL-LAYERED CORES WITH METAL-CONTAINING CENTERS AND THERMOSET OUTER CORES - Multi-piece golf balls containing a dual-core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity and a surrounding outer core layer having a relatively low specific gravity. The core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof. The outer core layer preferably is formed from a thermoset composition such as polybutadiene rubber. The resulting ball has high resiliency and good spin control. | 03-13-2014 |
20140073457 | GOLF BALLS HAVING DUAL-LAYERED CORES COMPRISING METAL-CONTAINING AND THERMOPLASTIC COMPOSITIONS - Multi-piece golf balls containing a dual-core structure are provided. The core structure includes a small, heavy inner core (center) comprising a metal material, for example, copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof, and having a relatively high specific gravity. A surrounding outer core layer is disposed about the inner core and has a relatively low specific gravity. The outer core layer preferably is formed from a thermoplastic composition preferably an ethylene acid copolymer ionomer resin. The core structure may have different hardness gradients. The resulting ball has high resiliency and good spin control. | 03-13-2014 |
20140113746 | MULTILAYER GOLF BALL - Multilayer golf balls comprising a thermoplastic or thermoset cover disposed about four or more thermoplastic layers are disclosed. | 04-24-2014 |
20140121036 | GOLF BALLS HAVING MULTI-LAYERED CORES WITH THERMOSET OUTER LAYER - Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof. The intermediate core layer is preferably formed from a first thermoset composition such as polybutadiene rubber, and the outer core layer is preferably formed from a second thermoset composition. The resulting ball has high resiliency and good spin control. | 05-01-2014 |
20140121037 | GOLF BALLS HAVING MULTI-LAYERED CORE WITH THERMOPLASTIC OUTER LAYER - Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof. The intermediate core layer is preferably formed from a thermoset composition such as polybutadiene rubber, and the outer core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer. The resulting ball has high resiliency and good spin control. | 05-01-2014 |
20140148272 | MULTI-LAYERED CORES WITH THERMOPLASTIC AND THERMOSET LAYERS FOR GOLF BALLS - Multi-piece golf balls containing a multi-layered core structure having layers with different hardness gradients and specific gravities are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity with metal material preferably dispersed in a first thermoset composition. The intermediate core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a second thermoset composition. The resulting ball has high resiliency and good spin control. | 05-29-2014 |
20140179462 | GOLF BALL COMPOSITIONS - Disclosed herein are multilayer golf balls having a layer with a higher Shore C hardness and a lower Shore D hardness than another layer. | 06-26-2014 |
20140194222 | GOLF BALL HAVING A HOLLOW CENTER - A golf ball including a spherical inner core shell layer formed from a thermoset rubber composition, the shell layer having an outer surface, an inner surface, and an inner diameter to define a hollow center. A thermoplastic outer core layer is formed about the shell layer. An optional inner cover layer is formed about the outer core layer, the inner cover including an ionomeric material. An outer cover layer is formed over the core or option inner cover layer, the outer cover including a polyurea or a polyurethane and having a second hardness less than the optional inner cover layer. The hollow center has a diameter of about 0.15 to 1.1 inches. The shell layer has a surface hardness greater than its inner surface hardness by about 3 to 25 Shore C to define a hardness gradient, and the thermoplastic outer core layer has a second hardness gradient. | 07-10-2014 |
20140194223 | GOLF BALL HAVING A HOLLOW CENTER - A hollow golf ball includes a spherical inner core shell layer formed from a first thermoplastic composition, the shell layer having an outer surface, an inner surface, and an inner diameter to define a hollow center. An outer core layer is formed about the shell layer and includes a thermoset rubber composition. An inner cover layer is formed about the outer core layer and includes an ionomeric material. An outer cover layer is formed about the inner cover layer. The outer cover includes a polyurea or a polyurethane and has a hardness less than the inner cover layer. The hollow center has a diameter of about 0.15 to 1.1 inches, the shell layer has a surface hardness greater than an inner surface hardness by about 0 to 5 Shore C to define a first hardness gradient, and the thermoset outer core layer has a second hardness gradient. | 07-10-2014 |
20140194224 | GOLF BALL HAVING A HOLLOW CENTER - A golf ball includes a spherical inner core shell layer formed from a thermoplastic composition. The shell layer has an outer surface, an inner surface, and an inner diameter to define a hollow center. A thermoplastic outer core layer is formed around the shell layer. An ionomeric inner cover layer and a urethane or urea outer cover layer are formed over the hollow core. The outer cover has a hardness less than the inner cover. The hollow center has a diameter of about 0.15 to 1.1 inches, the shell layer has a surface hardness greater than an inner surface hardness by about 0 to 5 Shore C to define a hardness gradient, and the thermoplastic outer core layer also has a hardness gradient. | 07-10-2014 |
20140194225 | GOLF BALL HAVING A HOLLOW CENTER - A golf ball includes a thermoset spherical inner core shell layer having an outer surface, an inner surface, and an inner diameter to define a hollow center; a thermoset outer core layer formed about the shell layer; and an inner and outer cover layer formed about the outer core layer. The inner cover includes an ionomeric material and the outer cover layer includes a polyurea or a polyurethane having a hardness less than the inner cover layer. The hollow center has a diameter of about 0.51 to 1.1 inches, the shell layer has a surface hardness greater than an inner surface hardness by about 3 to 25 Shore C to define a first hardness gradient, and the outer core layer has a second hardness gradient different from the first. | 07-10-2014 |
20140256469 | MULTI-LAYERED CORES HAVING FOAM INNER CORE FOR GOLF BALLS - Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The intermediate core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The core structure and resulting ball have relatively good resiliency. | 09-11-2014 |
20140287851 | GOLF BALL COMPOSITIONS - Disclosed herein are heterogeneous golf ball compositions comprising a matrix formed from a thermosetting polymer composition and discrete particles of crosslinked rubber dispersed within the matrix. | 09-25-2014 |
20140309055 | MULTI-LAYERED COES FOR GOLF BALLS HAVING FOAM AND THERMOSET LAYERS - Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The intermediate and outer core layers are preferably formed from non-foamed thermoset compositions such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The core structure and resulting ball have relatively good resiliency. | 10-16-2014 |
20140323244 | GOLF BALLS HAVING FOAM INNER CORE AND THERMOSET OUTER CORE LAYER - Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The outer core layer is preferably formed from a non-foamed thermoset composition such as polybutadiene rubber. Preferably, the specific gravity (density) of the foam inner core is less than the density of the outer core layer. The ball further includes a cover of at least one layer and may include at least one casing layer. The core structure and resulting ball have relatively good resiliency. | 10-30-2014 |
20140349781 | THREE-LAYER-CORE GOLF BALL HAVING HIGHLY-NEUTRALIZED POLYMER OUTER CORE LAYER - A golf ball includes an inner core layer formed from a thermoset rubber composition. The inner core layer has a first outer surface Shore D hardness and an outer diameter of about 0.8 to 1.40 inches. A thermoplastic outer core layer is formed around the inner core layer, has a second outer surface Shore D hardness, and is formed from a copolymer of ethylene and an α,β-unsaturated carboxylic acid, a magnesium salt of oleic acid, and sufficient cation source to fully-neutralize the acid groups of the copolymer. The golf ball includes an inner cover layer and an outer cover layer. The first outer surface Shore D hardness is greater than the second outer surface Shore D hardness and the outer core layer has a thickness of about 0.01 inches to 0.05 inches. | 11-27-2014 |
20140364249 | GOLF BALLS HAVING FOAM INNER CORE AND THEMOPLASTIC OUTER CORE - Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The outer core layer is preferably formed from a non-foamed thermoplastic composition such as ethylene acid copolymer ionomer. Preferably, the specific gravity (density) of the foam inner core is less than the density of the outer core layer. The ball further includes a cover of at least one layer and may include at least one casing layer. The core structure and resulting ball have relatively good resiliency. | 12-11-2014 |
20140364250 | GOLF BALL CORES HAVING FOAM CENTER AND THERMOPLASTIC OUTER LAYERS - Golf ball multi-layered core sub-assemblies and the resulting golf balls are provided. The core structure includes a foam inner core (center); and intermediate and outer core layers. Foamed polyurethane is preferably used to make the inner core. The intermediate and outer core layers are preferably made from non-foamed thermoplastic compositions such as ethylene acid copolymer ionomer. In an alternative version, the intermediate core layer may be made of a thermoset rubber such as polybutadiene. The core layers have different hardness and specific gravity levels. The core structure and resulting ball have relatively good resiliency. | 12-11-2014 |