Entries |
Document | Title | Date |
20080216930 | Tyre with rubber tread which contains internal circumferential rubber stabilizer bars - This invention relates to a tyre, particularly a motorcycle tyre having a high camber rubber tread which contains a central internal circumferential rubber stabilization element, or bar, which extends to and is a part of the running surface of the tyre tread and a plurality of additional spaced apart internal circumferential rubber stabilization bars, positioned within the tread outer cap rubber layer of which one or more may optionally be a part of the running surface of the tyre tread. In one embodiment, segments of the tread's outer cap rubber layer are substantially separated from each other, and may be thereby substantially dynamically de-coupled from each other, by one or more of said circumferential rubber stabilizer bars which extend radially outward into said outer tread cap rubber layer from an underlying tread base rubber layer. | 09-11-2008 |
20090056846 | Tire Having Tire Tread Structure Comprising Cap Tread and Base Tread - The present invention provides a tire having a tire tread comprising a cap tread and a base tread, use of which makes it possible to prepare for future decrease of petroleum supply, and further, can improve rolling resistance, steering stability and rubber strength in favorable balance, as compared with a tire prepared by using a rubber composition for a tread or a tire prepared by using a rubber composition for a base tread, which mainly comprises materials derived from petroleum resources. The tire has a tire tread comprising a cap tread and a base tread, the base tread being prepared by using a rubber composition for a base tread comprising 25 to 80 parts by weight of silica on the basis of 100 parts by weight of a rubber component comprising a natural rubber, and a thickness of the base tread being 17 to 50% of the overall thickness of the tire tread. | 03-05-2009 |
20090071584 | TIRE HAVING TREAD WITH AN INTERNAL CLOSED CELLULAR RUBBER TRANSITION LAYER - The invention relates to a tire having a rubber tread configuration comprised of a circumferential non-cellular outer rubber cap rubber layer which contains a tread running surface, a circumferential internal, intermediate closed cellular rubber transition rubber layer positioned between said outer tread cap non-cellular rubber layer and a circumferential tread base non-cellular rubber layer. Said internal cellular rubber layer is thereby exclusive of said tread running surface and thereby abridges and joins said outer non-cellular rubber cap layer and said non-cellular base rubber layer of said tread configuration. | 03-19-2009 |
20090084477 | TIRE HAVING TREAD WITH REPELLENT GROOVE SURFACE - The present invention relates to a tire having a rubber tread of a lug and groove configuration wherein at least a portion of surface of the grooves is comprised of an elastomeric layer having a repellent property. | 04-02-2009 |
20090101258 | Pneumatic Tire - A pneumatic tire using a rubber composition that can reduce rolling resistance of a tire and promote low fuel consumption in a base rubber is provided. The pneumatic tire includes a tread rubber which comprises a cap rubber provided at a road surface side and a base rubber provided at its inner periphery side, wherein the base rubber comprises a rubber composition which comprises 100 parts by weight of a diene rubber component containing from 15 to 50 parts by weight of a butadiene rubber or a styrene-butadiene rubber, its molecular end being modified with a modifier, polymerized using an organic lithium catalyst, and from 20 to 50 parts by weight of carbon black having a nitrogen adsorption specific surface area (N | 04-23-2009 |
20090107597 | TIRE WITH WEAR RESISTANT RUBBER TREAD - The invention relates to a tire having a composite rubber tread band disposed circumferentially around a tire carcass. The tread band is comprised of a cap/base construction composed of an outer tread cap rubber layer which provides a primary portion of the running surface for the tire tread and a unitary tread base layer underlying said tread cap layer which extends radially outward to the tread running surface to provide a secondary portion of the running surface of the tread. The rubber composition of said tread base layer and the corresponding secondary lateral portion of the running surface of the tread has a greater resistance to wear than the rubber composition of said tread cap layer. | 04-30-2009 |
20090107598 | Rubber Composition For Tire Base Tread - The rubber composition for a tire base tread includes a rubber component containing not less than 15 % by weight of a terminal-modified diene rubber having a number average molecular weight prior to modification of 150000 to 400000, a filler, and a compound (vulcanizing agent) represented by the following general formula (1) in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the rubber component: | 04-30-2009 |
20090173420 | PNEUMATIC TIRE FOR TWO-WHEELED VEHICLE - A pneumatic tire for two-wheeled vehicles that has excellent steering stability during high-speed traveling while having excellent steering stability performance during turning, in which the vehicle body is significantly tilted, with improved grip performance during turning. | 07-09-2009 |
20090205763 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion on each side of the equatorial plane. At least two circumferential main grooves and three land portions are formed in the tread portion. In a cross section in a meridian direction of the pneumatic tire, profile lines of the land portions form arcs, and an intersection of extension lines of profile lines of adjacent land portions forms an inflection point in a circumferential main groove. Tensile strength of a reinforcing layer in the land portions is larger than that in the circumferential main groove having the inflection points. | 08-20-2009 |
20090218018 | METHOD FOR FORMING A GREEN TREAD RUBBER AND A PNEUMATIC TIRE FORMED BY USING THE GREEN TREAD RUBBER - In a method for forming a green tread rubber comprised of a cap rubber layer which outer surface forms a tread surface and a base rubber layer that adjoins the same inside thereof in the radial direction, a cap rubber having a rubber component of styrene/butadiene rubber or being a mixed rubber of natural rubber and butadiene rubber is used as the cap rubber layer. The base rubber layer is formed as an annular body in which a strap-like rubber extruded body of wide width, which is extruded from a rubber extruder and is cut into constant size, is wound around a molding drum by a single round with their end portions in a circumferential direction being joined with each other. The cap rubber layer is formed as a strip layered body in which a long strap-like rubber strip of narrow width, which is extruded from an rubber extruder, is successively wound by overlapping the same on the annular body in the circumferential direction and in a spiral manner. A thickness T | 09-03-2009 |
20090242091 | TIRE WITH RUBBER TREAD OF CIRCUMFERENTIAL ZONES WITH GRADUATED PHYSICAL PROPERTIES - The invention relates to a tire having a rubber tread comprised of cap/base construction where the tread cap layer provides the running surface of the tread and the tread base layer underlies the tread cap layer and thereby provides a transition between the tread cap layer and the tire carcass. For this invention, the tread cap layer is comprised of a plurality of individual circumferential load-bearing zones of rubber compositions, which exhibit graduated physical properties, and which extend from the outer running surface of the tread cap layer radially inward to said tread base layer. In one aspect, the zoned rubber tread cap layer and rubber tread base layer are co-extruded together to form a unit as an integral tread rubber composite. | 10-01-2009 |
20090255613 | TIRE WITH TREAD HAVING AN INTERMEDIATE RUBBER LAYER CONTAINING A MICROSPHERE DISPERSION - The invention relates to a tire with a tread having an intermediate rubber layer which contains a dispersion of high strength hollow glass and/or ceramic microspheres. In particular, such tire tread is comprised of at least three radially disposed zones of rubber layers composed of a radially outer tread rubber cap layer, a radially inner tread base rubber layer and an intermediate, transition rubber layer positioned between said outer rubber cap layer and said inner rubber base layer. The intermediate tread rubber contains a dispersion of glass and/or ceramic microspheres together with a coupling agent. | 10-15-2009 |
20090294001 | VEHICLE TIRES HAVING COATED TREAD - Vehicle tires, particularly for commercial vehicles, contain a profiled tread, which is broken down into profiled ribs or block rows by a number of peripheral grooves and is made of a first rubber mixture. A groove base of the peripheral grooves is made of a second rubber mixture, and the modulus of elasticity of the second rubber mixture is less than the modulus of elasticity of the first rubber mixture of the main part of the tread. In particular, the second rubber mixture has a modulus M 100%, which is 5% to 20% less than the modulus M 100% of the first rubber mixture of the main part of the tread. The two rubber mixtures are based on a substantially identical or comparable polymer system. | 12-03-2009 |
20090308513 | RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME - Provide are a rubber composition which enhances a low fuel consumption and a reinforcing property with a filler and maintains an abrasion resistance and a DRY performance and which has an excellent on-ice performance and an excellent WET performance and a pneumatic tire prepared by using the above rubber composition for a tread. | 12-17-2009 |
20090308514 | PNEUMATIC TIRE, AND MANUFACTURING METHOD OF THE SAME - A 300% modulus at 100° C. in the range of 1 mm in an axial direction from a surface of a tread member is set to be between 1.10 times and 2.0 times inclusive, more preferably, between 1.10 times and 1.5 times inclusive, larger than a 300% modulus at 100° C. in the range of 0.5 mm to 1.5 mm in the axial direction from a bottom part of the tread member. | 12-17-2009 |
20090314404 | METHODS OF REDUCING TIRE ROLLING RESISTANCE UTILIZING ACTIVE MATERIAL ACTUATION - An adaptive tire employable by a vehicle traveling upon a surface, so as to define a rolling resistance, and including at least one active material element operable to selectively modify the resistance when activated. | 12-24-2009 |
20100012245 | PNEUMATIC TIRE WITH HIGH SPEED DURABILITY - A pneumatic tire with superior durability having a tread part comprising a cap tread layer (layer A) and an under tread layer (layer B), wherein, in the pneumatic tire, when storage elastic moduli of the rubber compositions constituting the layer A and the layer B are designated as E | 01-21-2010 |
20100018618 | TIRE WITH TREAD HAVING A TWO-PLY TREAD CAP LAYER - The invention relates to a tire with a tread of a cap/base construction comprised of a two-ply (dual layered) tread cap rubber layer comprised of a combination of an outer tread cap layer and an inner tread cap layer together with an underlying tread base rubber layer which underlies the two-ply tread cap layer. The tread cap layer is of a lug and groove configuration with at least a portion of the grooves extending through the outer tread cap layer into the inner tread cap layer without extending to the tread base rubber layer. The outer tread cap rubber layer is comprised of a carbon black-rich rubber composition to promote dry traction for the tread running surface. The inner tread cap layer is comprised of a softer silica-rich rubber composition to promote wet traction for tread running surface as the outer tread cap layer wears away to expose the softer inner tread cap layer. | 01-28-2010 |
20100024937 | PNEUMATIC TIRE - This invention relates to a pneumatic tire in which an appearance during a final stage of running is good and a heat buildup is low, and more particularly to a pneumatic tire comprising a tread portion ( | 02-04-2010 |
20100024938 | PNEUMATIC TIRE FOR MOTORCYCLE - A pneumatic tire for motorcycles is provided in which wear resistance is assured and the steering stability at a turn is improved as compared with the conventional tire by improving a grip ability. | 02-04-2010 |
20100059156 | PNEUMATIC TIRE - A pneumatic tire having a tire tread, the tread comprising grooves therein, the grooves forming tread elements, the tread having a radially outer surface and a non-skid tread depth as measured from the radially outer surface of the tread, and a radially innermost surface of the grooves, and one or more sunken grooves located radially inward and below the surface of the unworn tread, the tread comprised of a base tread compound, a radially outer compound, and a radially inner compound, wherein the intersection of the radially outer compound and the radially inner compound is wavy. | 03-11-2010 |
20100065173 | TIRE HAVING TREAD WITH AN INTERNAL CLOSED CELLULAR RUBBER TRANSITION LAYER - The invention relates to a tire having a rubber tread configuration comprised of a circumferential non-cellular outer rubber cap rubber layer which contains a tread running surface, a circumferential internal, intermediate closed cellular rubber transition rubber layer positioned between said outer tread cap non-cellular rubber layer and a circumferential tread base non-cellular rubber layer. Said internal cellular rubber layer is thereby exclusive of said tread running surface and thereby abridges and joins said outer non-cellular rubber cap layer and said non-cellular base rubber layer of said tread configuration. | 03-18-2010 |
20100101694 | PNEUMATIC TIRE FOR MOTORCYCLE - The present invention realizes a pneumatic tire for a motorcycle, in which durability in running straight at a relatively high speed and tread surface gripping properties during high-speed cornering are made compatible and, in particular, a pneumatic tire for a motorcycle, which tire is capable of demonstrating appropriate durability and driving stability in accordance with inputs even if these inputs differ between running straight, cornering left and cornering right. The tread portion | 04-29-2010 |
20100108213 | RUBBER COMPOSITION AND TIRE - The present invention has its object to provide a rubber composition excellent in low-exothermic property, breaking strength, and crack growth resistance, and a pneumatic tire including at least one of a base tread, a cushion, a carcass and a tie gum that are prepared using the rubber composition. The present invention relates to a rubber composition including: a rubber component which contains | 05-06-2010 |
20100132862 | PNEUMATIC TIRE FOR MOTORCYCLE - The present invention provides a pneumatic tire for a motorcycle, in which tire durability at a relatively high speed in running straight is enhanced with maintaining good gripping performances in cornering situation by optimizing the distribution of loss tangent in tread rubbers constituting a tread portion. The pneumatic tire for a motorcycle includes a pair of bead portions | 06-03-2010 |
20100132863 | PLY, CLINCH AND TREAD FORMED BY USING A SPECIFIC RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME - The present invention provides a rubber composition that is used for forming a ply having superior processability upon preparation thereof, with a reduced hysteresis loss, a clinch that is capable of achieving both of good physical characteristics, such as rigidity, hardness and mechanical strength, and improvements in processability and a tread that has high rigidity with a small hysteresis loss and is superior in processability upon preparation thereof, while reducing the amount of use of materials derived from petroleum resources, and a pneumatic tire provided with these. The ply, the clinch apex and the tread are made from a rubber composition that has 100 parts by mass of a rubber component composed of a natural rubber and/or a modified natural rubber, and 25 to 80 parts by mass of silica having a BET specific surface area of not more than 150 m | 06-03-2010 |
20100154949 | PNEUMATIC TIRE - A pneumatic tire | 06-24-2010 |
20100163144 | PNEUMATIC RADIAL TIRE FOR MOTORCYCLE - There is provided a pneumatic radial tire for a motorcycle, which reduces a difference between rigidities of the center section and the shoulder sections of a tread section to simultaneously provide a long wear life, high grip force, and high-speed durability without impairing linear characteristics of handling. | 07-01-2010 |
20100163145 | PNEUMATIC TIRE FOR MOTORCYCLE - The tread portion | 07-01-2010 |
20100175800 | PNEUMATIC TIRE FOR A MOTORCYCLE - The present invention provides a pneumatic tire for a motorcycle which improves driving performance and braking performance without degrading driving stability particularly when a middle camber angle is applied to the tire. This tire comprises a tread portion | 07-15-2010 |
20100180996 | PAIR OF TIRES FOR MOTORCYCLE AND METHOD OF USING TIRES FOR MOTORCYCLE - A tread portion of a tire | 07-22-2010 |
20100186859 | TIRE WITH TREAD OF SPATIALLY DEFINED ELASTOMER COMPOSITION - Pneumatic rubber tire with an outer, circumferential tread comprised of a cis 1,4-polybutadiene-rich and silica-rich rubber composition which contains specified elastomers with spatially defined glass transition temperatures, in conjunction with silica and specified carbon black reinforcement. | 07-29-2010 |
20100193095 | PNEUMATIC TIRE FOR MOTORCYCLE - The present invention provides a pneumatic tire for motorcycle, in which driving properties and braking properties when a moderate camber angle is imparted to the tire on a dry road surface are improved without deteriorating stability in running, relatively large lateral force is reliably generated, and excellent wet performance is demonstrated without deteriorating dry performance of the tire, so that stable running is constantly enabled. The pneumatic tire for motorcycle, comprises: a tread portion | 08-05-2010 |
20100200132 | TIRE FOR MOTORCYCLE AND METHOD OF MANUFACTURING THE SAME - It is an object to provide a tire for a motorcycle which does not damage a stability in a transition between straight running and cornering but is excellent in various performances. | 08-12-2010 |
20100230020 | PNEUMATIC TIRE - A proper balance between ride comfort and steering stability is achieved. A pneumatic tire ( | 09-16-2010 |
20100258227 | PNEUMATIC TIRE AND PRODUCTION METHOD THEREFOR - Static electricity in a vehicle is discharged to a road surface without deteriorating uniformity. Tread rubber | 10-14-2010 |
20100319825 | PNEUMATIC TIRE - A proper balance between ride comfort, steering stability, and road noise is achieved. A pneumatic tire ( | 12-23-2010 |
20110024010 | PERFORMANCE ADAPTIVE TIRES UTILIZING ACTIVE MATERIAL ACTUATION - An adaptive tire employable by a vehicle traveling upon a surface includes at least one active material element operable to selectively modify a structural component of the tire, and as a result a performance characteristic, such as the traction between the tire and surface, the ability for the tire to dampen standing waves, or the required mounting force, when activated. | 02-03-2011 |
20110024011 | MODIFIED GEL PARTICLES AND RUBBER COMPOSITION - This invention discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a filler, (2) a cured rubbery polymer, and (3) core-shell particles which are comprised of (a) a crosslinked elastomeric core consisting essentially of repeat units that are derived from at least one conjugated diolefin monomer and from 15 weight percent to 30 weight percent at least one crosslinking monomer, wherein the crosslinked elastomeric core is a polymeric composition having a glass transition temperature which is within the range of −20° C. to 20° C., and (b) a polymeric shell which is derived from at least one vinyl aromatic monomer, wherein the polymeric shell has a glass transition temperature which is within the range of 50° C. to 160° C., and wherein the weight ratio of the core to the shell is within the range of 20:1 to 7:1. | 02-03-2011 |
20110048599 | TIRE WITH RUBBER TREAD CONTAINING COMBINATION OF RESIN BLEND AND FUNCTIONALIZED ELASTOMER - This invention relates to a pneumatic tire with an outer, running surface containing, circumferential tread comprised of a styrene/butadiene (SBR) rich rubber composition containing two SBR's with spaced apart glass transition temperatures (Tg's), one of which is a functionalized SBR with a functional group reactive with hydroxyl groups on a precipitated silica, together with a combination of at least three resins with spaced apart softening points. The filler reinforcement is a combination of precipitated silica and specialized rubber reinforcing carbon black. | 03-03-2011 |
20110048600 | Pneumatic Tire - A pneumatic tire has a center rib extending along a tire circumferential direction in a center portion of a tread surface. A width of the center rib is equal to or more than 10% of a grounding width. An outside rubber having a relatively high tension modulus is arranged outside a vehicle and an inside rubber having a relatively low tension modulus is arranged inside the vehicle, by setting an interface formed in the center rib along a tire diametrical direction to a boundary. 300% tension modulus Mo and a rubber hardness Ho of the outside rubber, and 300% tension modulus Mi and a rubber hardness Hi of the inside rubber satisfy the following relationship: | 03-03-2011 |
20110094639 | PNEUMATIC TIRE - A pneumatic tire includes at least two types of cap tread rubber layers made from differing rubber compositions disposed in a tread portion. A tan δ at 60° C. of a rubber composition forming the cap tread rubber layer on a vehicle outer side is greater than a tan δ at 60° C. of a rubber composition forming the cap tread rubber layer on a vehicle inner side. A ratio (tan δH/tan δL) of a maximum tan δH to a minimum tan δL at 60° C. of the tan δ of the rubber compositions forming the at least two types of cap tread rubber layers is from 1.05 to 1.80. An under tread rubber layer disposed in the tread portion has an average thickness from 0.8 mm to 4.0 mm. A hardness of a rubber composition forming the under tread rubber layer is from 73 to 83. A tan δ at 60° C. of the rubber composition forming the under tread rubber layer is 0.25 or less. | 04-28-2011 |
20110120606 | PNEUMATIC TIRE WITH TREAD - The present invention is directed to a pneumatic tire comprising a ground contacting tread, the tread comprising a rubber composition comprising
| 05-26-2011 |
20110155292 | PNEUMATIC TIRE FOR MOTORCYCLE - The tread portion | 06-30-2011 |
20110186197 | ELASTOMERS CONTAINING SURFACE METALATED SILICEOUS FILLER - This invention is based upon the concept of modifying the surface of silica with a metal, such as titanium or zirconium, which will catalyze silanol condensation reactions on the surface of the silica. In other words, modifying the surface of silica with titanium or zirconium provides a catalyst for the silanol condensation reaction between the silica surface and silane coupling agents used in silica filled compounds. The utilization of such metalated silica as a filler in rubber compositions results in improved polymer filler interaction and in turn improved physical properties. For instance, such surface metalated siliceous fillers can be used in tire tread compounds to attain improved rolling resistance and treadwear without compromising traction characteristics. The present invention more specifically discloses an elastomeric composition which is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. The subject invention further reveals a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a rubbery polymer, (2) a silica coupling agent, and (3) a surface metalated siliceous filler. | 08-04-2011 |
20110226396 | TIRE HAVING TREAD WITH AN INTERNAL SOFTER TRANSITION RUBBER LAYER CONTAINING SHORT FIBER REINFORCEMENT - The invention relates to a tire having a rubber tread comprised of a circumferential outer cap rubber layer which contains a tread running surface and an underlying undertread layer of softer rubber than said outer tread cap rubber layer wherein said undertread layer rubber composition contains short fiber reinforcement. | 09-22-2011 |
20110303332 | Pneumatic Tire - A tread rubber includes a cap portion formed by a nonconductive rubber, a base portion formed by a nonconductive rubber, and a conductive portion formed by a conductive rubber. A rubber hardness of the cap portion is higher than a rubber hardness of the base portion. The base portion is segmented in a tire width direction. A rubber forming the cap portion is filled in a recess at a segmented position. The conductive portion has a first portion which is provided in an outer side of the segmented position and extends to an inner side in the tire diametrical direction from the ground surface, and a second portion which is provided continuously in the first portion and extends in the tire width direction so as to run into the side surface or the bottom surface of the tread rubber. | 12-15-2011 |
20110308678 | Vehicle Tire Comprising a Tread Composed of a Plurality of Compounds and a Layer of Circumferential Reinforcement Elements of Variable Pitch - A tire comprising a reinforcing structure of the carcass type and comprising under the tread strip a crown reinforcing structure comprised of at least one layer of reinforcing elements. At least the surface of the tread strip comprises a first polymer compound extending at least into the region of the equatorial plane and of at least one second polymer compound having physicochemical properties that differ from those of the first polymer compound, the crown reinforcing structure comprising at least one layer of circumferential reinforcing elements which are distributed in the transverse direction with a variable pitch and the pitch between the circumferential reinforcing elements being at a minimum in the region of the layer of circumferential reinforcing elements that radially face the ends of the first compound. | 12-22-2011 |
20120024441 | PNEUMATIC TIRE - The present invention is directed to a pneumatic tire having a rubber tread of a cap/base construction comprised of an outer rubber tread cap layer containing an outer running surface and an underlying rubber tread base layer, wherein said tread cap layer is comprised of a plurality of circumferential, longitudinal rubber tread cap zones of graduated physical properties, wherein said tread cap zones individually extend from said tread cap running surface radially inward to said tread base layer: wherein said tread cap zones are comprised of two primary tread cap zones and one central tread cap zone;
| 02-02-2012 |
20120097302 | Tread with Antidegradant Reservoir - A tread band ( | 04-26-2012 |
20120103487 | PNEUMATIC TIRE WITH TIRE LAYER AND DVA BARRIER LAYER ADHERED THERETO AND METHOD OF MAKING SAME - A pneumatic tire and method of making is disclosed, which includes, in one embodiment, an outer tread and a barrier layer disposed inwardly of the outer tread. The barrier layer includes a dynamically vulcanized alloy, which has an engineering resin as a continuous phase and at least a partially vulcanized rubber as a dispersed phase, and an inner surface and an outer surface. A tire layer, e.g., a ply layer, is situated adjacent at least one of the inner or outer surfaces of the barrier layer. The tire layer includes a rubber formulation having 100 parts of natural rubber, a synthetic rubber, or blends or combinations thereof, 1-10 phr of a melamine derivative, e.g., hexamethoxymethylmelamine, and at least one reinforcing filler. The tire is devoid of an adhesive layer between the barrier layer and the tire layer, and the tire layer adheres directly to the barrier layer after tire cure. | 05-03-2012 |
20120132330 | STIFFNESS ENHANCED TREAD ELEMENT - A tire tread may be formed by simultaneously extruding a tread cap formed of a first material and a tread base formed of a second material having a substantially different stiffness property than the first material. One tread element may have a strip of the second material extending from the tread base into the tread cap and, a second tread element may also have a strip of the second material extending from the tread base into the tread cap. | 05-31-2012 |
20120132331 | PNEUMATIC TIRE - The present invention is directed to a pneumatic tire | 05-31-2012 |
20120132332 | Passenger Tire Having Low Rolling Resistance With Improved Wet Traction And Treadwear - A tire having a tread includes an outer tread layer and an inner tread layer. The inner tread layer includes one of a first elastomeric compound and a second elastomeric compound. The outer tread layer includes the other of the first and second elastomeric compounds. The second elastomeric compound has a lower rolling resistance and greater resistance to treadwear than the first elastomeric compound. The inner tread layer increases in thickness across at least a widthwise portion of the outer tread layer with a maximum thickness of one of the inner tread layer and the outer tread layer occurring near at least one of a first shoulder and a second shoulder of the tread. As the tread wears, the inner tread layer defines a greater proportion of a running surface of the tread. | 05-31-2012 |
20120180918 | ZONED TREAD FOR RACING TIRES - A racing tire comprising a tread having a new tread thickness of no greater than about 0.375 inch. The tread defines a running surface that includes a first circumferential portion of a first rubber compound and a second circumferential portion of a second rubber compound situated adjacent one another. The first rubber compound has a greater stiffness than the second rubber compound so as to provide the tread with greater wear resistance along the first circumferential portion, and the second rubber compound provides the tread with greater traction along the second circumferential portion. The tread may be substantially free of a tread pattern. The second rubber compound may have a greater DIN abrasion value than the first rubber compound. The second rubber compound may have a higher tan delta at 100° C. and/or a higher J″ traction value than the first rubber compound. | 07-19-2012 |
20120234442 | TREAD HAVING A GRADIENT OF PROPERTIES FOR IMPROVING IRREGULAR WEAR - This invention relates generally to treads having a configuration and/or properties for improving or preventing irregular wear on the tread of a tire, and, more specifically, to a tire that has a tread with a gradient of properties that helps to prevent or improve irregular wear, especially suitable for tires that are free rolling such as steer or trailer tires used on trucks. | 09-20-2012 |
20120285590 | TIRE WITH TREAD HAVING BASE LAYER COMPRISED OF DIVERSE ZONED RUBBER COMPOSITIONS - The invention relates to a tire having a rubber tread comprised of cap/base construction where the tread outer cap rubber layer contains the running surface of the tread and the tread base rubber layer underlies the tread cap layer wherein the base layer provides a transition zone between the tread cap layer and the remainder of the tire carcass and is not intended to be ground-contacting. For this invention, the tread base rubber layer is comprised of three distinct zones, namely a circumferential annular central rubber zone positioned between two lateral annular rubber zones. In one aspect, the rubber tread cap layer and zoned rubber tread base layer are co-extruded together to form an integral tread rubber composite. | 11-15-2012 |
20130048169 | PNEUMATIC TIRE WITH DUAL TREAD CAP - A tread for a pneumatic tire includes a tread base layer, a first tread cap layer radially outside of the tread base layer, a second tread cap layer radially outside of the tread base layer and both radially outside and axially adjacent the first tread cap layer, a first tread skirt disposed at an inner tread edge of the pneumatic tire and axially adjacent the tread base layer and the first tread cap layer, and a second tread skirt disposed at an outer tread edge of the pneumatic tire and axially adjacent the tread base layer and the second tread cap layer. | 02-28-2013 |
20130081744 | Pneumatic Tire - A pneumatic tire including a plurality of circumferential main grooves extending in a tire circumferential direction and a plurality of land portions partitioned and formed by these circumferential main grooves in a tread portion. Additionally, the plurality of land portions have a plurality of sipes, respectively. Moreover, not less than 90% of the sipes disposed in an inner side region are constituted by two-dimensional sipes and not less than 90% of the sipes disposed in an outer side region are constituted by three-dimensional sipes. Furthermore, the tread portion has a cap rubber and an under rubber. A rubber hardness H | 04-04-2013 |
20130153101 | TRUCK TIRE WITH RUBBER TREAD - This invention relates to a tire with a circumferential rubber tread comprised of a rubber composition for promotion of reduced internal heat build-up. The invention particularly relates to truck tires. | 06-20-2013 |
20130153102 | TIRE COMPONENT CONTAINING SYNDIOTACTIC-1,2-POLYBUTADIENE - The invention relates to a pneumatic tire with a component containing syndiotactic polybutadiene. The invention particularly relates to a tire with a tread configured with an outer cap rubber layer and an internal underlying rubber layer where the underlying rubber layer is comprised of such syndiotactic polybutadiene-containing rubber composition or a tire with a sidewall apex of such syndiotactic polybutadiene-containing rubber composition. | 06-20-2013 |
20130319589 | PNEUMATIC TIRE - The present invention provides a pneumatic tire that has improved handling stability while maintaining good fuel economy and tensile strength or even improving these properties. The pneumatic tire includes a tread including a rubber layer formed from a rubber composition that includes: carbon black; silica; and staple fibers with an average width of 3 nm to 50 μm and an average length of 50 nm to 500 μm, the staple fibers in the rubber layer having an average orientation angle between the longitudinal direction of each staple fiber and the circumferential direction of the tire of 15° to 75°, and the staple fibers in the rubber layer including 35 to 100% of staple fibers each having an orientation angle between its longitudinal direction and the circumferential direction of the tire of 15° to 75°. | 12-05-2013 |
20140000773 | PNEUMATIC VEHICLE TIRE | 01-02-2014 |
20140041776 | TREAD MADE FROM MULTI CAP COMPOUNDS - A pneumatic tire having a tire tread is disclosed, wherein the tread comprises one or more tread elements and one or more grooves, the tread having a radially outer surface and a non-skid tread depth as measured from the radially outer surface of the tread and a radially innermost surface of the grooves. The tread has a radially innermost layer comprised of a base tread compound, a radially outer tread cap layer and a middle tread cap layer located between the base layer and the outer tread cap layer. Wherein the radially outer tread cap layer has a defined depth D, except that there is at least one notched areas wherein the tread cap layer extends radially inward of the defined depth D. | 02-13-2014 |
20140041777 | TREAD MADE FROM MULTI CAP COMPOUNDS - A pneumatic tire having a tire tread is disclosed, wherein the tread comprises one or more tread elements and one or more grooves, the tread having a radially outer surface and a non-skid tread depth as measured from the radially outer surface of the tread and a radially innermost surface of the grooves. The tread has a radially innermost layer comprised of a base tread compound, a radially outer tread cap layer and a middle tread caplayer located between the base layer and the outer tread cap layer. Wherein the radially outer tread cap layer has a defined depth D, except that there is at least one notched areas wherein the tread cap layer extends radially inward of the defined depth D. | 02-13-2014 |
20140174616 | PNEUMATIC TIRE FOR MOTORCYCLE - A pneumatic tire for a motorcycle that secures durability while improving grip performance in turning. A pneumatic tire for a motorcycle including a belt containing a belt layer formed by coating a plurality of cords with rubber in a tire tread, wherein the tread is provided with cushion rubbers separated from each other in the tire widthwise direction in both sides of the tire equatorial plane by a separated region and located outward in the tire radial direction from the belt, and a base rubber having a modulus higher than those of the cushion rubbers located in the separated region or outward in the tire radial direction therefrom, and Wn, a length of the separated region, and Wb, a length of the base rubber in the cross section in the tire widthwise direction, satisfy the relation: Wn≦Wb. | 06-26-2014 |
20140190605 | TIRE WITH IMPROVED TREAD - A tire comprising a tread portion designed to be worn off during the life of the tire having a radial thickness T, an outer edge and an inner edge, the axial distance between the outer edge and the inner edge defining the axial width L of the tread, the tread comprising four adjacent portions made of a four rubber compounds, wherein the rubber compounds making up the first and third portions are predominantly filled with carbon black filler, wherein the rubber compounds making up the second and fourth portion are predominantly filled with non carbon black filler, wherein the rubber compounds making up the first and third portions have a value for tan δ at 0° C., at a stress of 0.7 MPa, that is lower than that of the rubber compounds making up the second and fourth portion, and wherein the axial width of the first portion decreases and the axial width of the second portion increases as a function of the distance from the rolling surface of the tread when unworn. | 07-10-2014 |
20140202605 | PNEUMATIC TIRE FOR USE IN TWO-WHEELED AUTOMOTIVE VEHICLE | 07-24-2014 |
20140251519 | TIRE TREAD WITH IMPROVED SNOW/DRY TRACTION - Tire treads having one or more repeating pitches, each repeating pitch comprising individual pitches having tread blocks with sipes formed therein and each pitch having a pitch length of between 15 mm and 35 mm. Such treads may also have a weighted average sipe density D | 09-11-2014 |
20140283965 | PNEUMATIC TIRE - A pneumatic tire is provided with a pair of first land sections formed between shoulder main grooves and center main grooves, a second land section formed between the center main grooves, and a pair of shoulder land sections formed on the outside of the shoulder main grooves in a tire width direction. The first land sections and the second land section swell outward in the tire radial direction from a basic tread profile line that smoothly connects ground contact surfaces of the pair of shoulder land sections. A swelling amount of the first land sections that swell from the basic tread profile line is larger than a swelling amount of the second land section. | 09-25-2014 |
20140326378 | TREAD COMPRISING TREAD PATTERN ELEMENTS COVERED WITH A THERMOPLASTIC MATERIAL - A tire tread having:
| 11-06-2014 |
20140332132 | TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS - A tire with radial carcass reinforcement, comprising a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the said tread comprising at least two radially superposed layers of polymer compound, a first layer of filled elastomeric compound, constituting the radially outer part of the tread, has a macrodispersion score Z higher than 80 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130 and a second layer of elastomeric compound radially on the inside of the said first layer of elastomeric compound has an elongation at break at 60° C. that is higher than 600%. | 11-13-2014 |
20140373990 | PNEUMATIC TIRE - Tread rubber forms a ground contact surface. When the ground contact surface is divided into two parts: a mounting inner side and a mounting outer side, the tread rubber has an inner cap part that forms an inner ground contact surface and is produced from non-conductive rubber, and an outer cap part that forms an outer ground contact surface. The inner cap part has a branched conductive part that is formed from conductive rubber ranging from the ground contact surface of a mounting outer end of the inner cap part to the side surface or bottom surface of a mounting inner end while branching off at a plurality of positions. The outer cap part does not have branched conductive rubber. The branched conductive part is formed from the conductive rubber with a rubber hardness different from that of the non-conductive rubber that forms the inner cap part. | 12-25-2014 |
20150007916 | PNEUMATIC TIRE - [Object] A pneumatic tire | 01-08-2015 |
20150034223 | TREAD FOR PNEUMATIC TIRE - A tread for a pneumatic tire in which a reinforcing layer is provided on a side wall portion of a ground-contacting element of a tread of a tire, and in a pneumatic tire having such a tread, the reinforcing layer has a mean thickness of less than 0.5 mm, is provided over an area at least equal to 50% of the side wall portion, and has a material modulus at least equal to 200 MPa. | 02-05-2015 |
20150047762 | Pneumatic Tire - The present technology provides a pneumatic tire that combines rolling resistance and wet grip performance while suppressing the occurrence of uneven wear. The pneumatic tire of the present technology has a cap rubber divided into a center portion that straddles a tire equator line and shoulder portions positioned on both sides thereof, a compound emphasizing wet grip performance and having a tan δ at 0° C. higher than that of the shoulder portions is disposed in the center portion and a compound emphasizing rolling resistance and having a tan δ at 60° C. lower than that of the center portion is disposed in both shoulder portions, and circumferential narrow grooves are formed on the respective shoulder sides of outermost main grooves in both the shoulder portions. | 02-19-2015 |
20150083293 | PASSENGER TIRE HAVING LOW ROLLING RESISTANCE WITH IMPROVED WET TRACTION AND TREADWEAR - A tire having a tread includes an outer tread layer and an inner tread layer. The inner tread layer includes one of a first elastomeric compound and a second elastomeric compound. The outer tread layer includes the other of the first and second elastomeric compounds. The second elastomeric compound has a lower rolling resistance and greater resistance to treadwear than the first elastomeric compound. The inner tread layer increases in thickness across at least a widthwise portion of the outer tread layer with a maximum thickness of one of the inner tread layer and the outer tread layer occurring near at least one of a first shoulder and a second shoulder of the tread. As the tread wears, the inner tread layer defines a greater proportion of a running surface of the tread. | 03-26-2015 |
20150090381 | PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE - A method of manufacturing a pneumatic tire has a winding step of forming a rubber ribbon winding body constructing a tread rubber by spirally winding a rubber ribbon obtained by co-extruding a first rubber and a second rubber which are different in hardness. The first rubber is mainly arranged in a first area by making a cross sectional area ratio of the first rubber greater than that of the second rubber. The second rubber is mainly arranged in a second area by making the cross sectional area ratio of the first rubber smaller than that of the second rubber. A portion in which the cross sectional area ratio of the first rubber becomes smaller by smaller is provided from the first area toward the second area. The rubber ribbon retaining a compound interface is superposed and wound to at least a part of the second area. | 04-02-2015 |
20150107735 | PNEUMATIC TIRE WITH MULTI-TREAD CAP - A tread for a pneumatic tire in accordance with the present invention includes a tread base layer, a first tread cap layer radially outside of the tread base layer, a second tread cap layer radially outside of the tread base layer and both radially outside and axially adjacent the first tread cap layer, a third intermediate layer radially between the tread base layer and the first and second tread cap layers. The first tread cap layer has a protrusion extending radially inward and into the third intermediate layer more than a main body of the first tread cap layer and the second tread cap layer thereby allowing the first tread cap layer to provide the overall tread with enhanced performance characteristics after the main body of the first tread cap layer and the second tread cap layer have worn away. | 04-23-2015 |
20150107736 | TREAD BLOCK STRUCTURE OF PNEUMATIC TIRE - Disclosed herein are embodiments of a tread block structure of a pneumatic tire including at least one tread cone having different physical properties from the outer surface toward the inner surface. According to various exemplary embodiments of the present invention, the tread cones with different properties existing in the tread block may control the rigidity of the tread block without the trade-off on other tread performance, and thus the tread block structure and a pneumatic tire comprising the same exhibit an improved balance between traction, cornering performance, and abrasion resistance. | 04-23-2015 |
20150136287 | TIRE COMPRISING A TREAD FORMED BY MULTIPLE ELASTOMER BLENDS - A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the tread having at least two layers of blended elastomeric compounds that are radially superposed and have a voids ratio that is lower in the central part than at the axially outer parts. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a part extending at least into the region of the equatorial plane and of at least two axially outer parts formed of a second blended elastomeric compound, the first blended elastomeric compound having a macro dispersion Z-value higher than 65 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.150, and the second blended elastomeric compound having a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130. | 05-21-2015 |
20150144240 | Pneumatic Tire - A rubber composition for an under tread of a tire comprises: relative to 100 parts by weight of diene rubber, from 15 to 45 parts by weight of carbon black and from 3 to 30 parts by weight of silica. An N | 05-28-2015 |
20150314650 | TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS - A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, having at least two radially superposed layers of elastomeric compounds; a first layer, forming the radially outer part of the tread, has a first elastomeric compound having a modulus G* greater than 1.8 MPa, a second layer of elastomeric compounds radially on the inside of and in contact with the said first layer of elastomeric compound has at least three parts, the axially outer parts having a second elastomeric compound having a maximum value of tan (δ), denoted tan (δ) max, strictly less than 0.060, and at least a part of the second layer, axially in contact with at least an axially outer part having a third compound with modulus G* greater than 1.2 MPa and at least 5% less than the first elastomeric compound and a maximum value of tan (δ), tan (δ)max, between 0.060 and 0.120. | 11-05-2015 |
20150314651 | TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS - A tire with radial carcass reinforcement comprising a crown reinforcement itself capped radially with a tread of which the tread pattern comprises at least two circumferential grooves. The tread is made up of at least three layers, a first layer forming the radially outer part of the tread of a first compound having an electrical resistivity per unit volume ρ | 11-05-2015 |
20150328931 | Tire Having Low Rolling Resistance - Tire tread having a central part (I) made from at least one first rubber compound and having at least one circumferential rib ( | 11-19-2015 |
20150343847 | Pneumatic Tire - A pneumatic having a designated rotational direction, comprises: a tread portion, side wall portions, and bead portions. At least four main grooves extend in a tire circumferential direction. A center land portion is located on a tire equator line. The center land portion has a continuous rib structure in the tire circumferential direction. First inclined grooves are provided from a position near the tire equator line in the center land portion extending to an outside in the tire width direction at an inclination to a direction opposite to the rotational direction and reaching at least as far as a ground contact edge. Second inclined grooves are provided extending from the intermediate land portions to the outside in the tire width direction at an inclination to the direction opposite to the rotational direction and reaching at least as far as the ground contact edge. | 12-03-2015 |
20150343851 | TREAD COMPRISING SCULPTED ELEMENTS COMPRISING A COVERING LAYER - A tread made of rubber material for a snow tire having a tread surface intended to be in contact with a road surface when the tire is being driven on, and provided with a plurality of cuts delimited by walls situated facing one another and forming lateral walls of raised elements of the tread. Each lateral wall intersects the tread surface to form an edge corner. At least one lateral wall of a raised element is formed partially or fully by a cover layer extending from the edge corner associated with this lateral wall, of a material having an elastic modulus higher than that of the rubber material of the tread. The raised element has a depression in its lateral wall, delimited by the cover layer. The raised element moreover has a width W and the depth P of the depression is at least equal to 10% of the width W of the element and less than or equal to 40% of this width W. Finally the volume of the depression is less than 10% of the volume of the raised element. | 12-03-2015 |
20160016435 | PNEUMATIC VEHICLE TIRE - A pneumatic vehicle tire for passenger cars, vans or the like has a radial carcass, a multi-ply belt, and a profiled tread that, as viewed in the axial direction, has a central portion and two shoulder portions. The shoulder portions include a rubber mixture that has a lower dynamic modulus of elasticity E′ (at 55° C. and 8% elongation according to DIN 53513) than the central portion. The central portion has extensions at the base thereof, running laterally substantially parallel to the tread substructure and radially inside and across the width of the shoulder portions. | 01-21-2016 |
20160052219 | METHODS OF TIRE RETREADING WITH ABUTTING TREAD COMPONENTS - The present invention includes methods for forming a retreaded tire, which includes the steps of providing an annular tire carcass and providing a plurality of tread components each comprising an independent structure, which are then assembled to form an assembled tire tread. The tread is subsequently bonded to the tire carcass to form a retreaded tire, the tire tread being arranged along an outer circumference of the annular tire carcass with a bonding layer between the tire tread and the tire carcass, the bonding layer comprising an uncured elastomeric material being cured during the step of bonding. The tire tread is assembled such that the plurality of tread components are concurrently arranged around the outer circumference of the tire carcass to form a tire tread. | 02-25-2016 |
20160059631 | PNEUMATIC TIRE - A pneumatic tire including: on a tread of the tire, inclined belt layer and circumferential belt layer; and on the tread surface, a plurality of circumferential grooves extending in the tread circumferential direction, and shoulder land portions partitioned between the circumferential grooves located outermost in the tire width direction and tread ground contact ends. Positions of the tread surface that correspond to the outermost ends of the circumferential belt layer in the tire width direction are within the shoulder land portions, and the distance in the tire width direction between the outermost ends in the tire width direction of the circumferential belt layer and tire equator side ends of the shoulder land portions is 12% or more and 22% or less of a half of the width of the circumferential belt layer in tire width direction. | 03-03-2016 |
20160059632 | TIRE WITH RUBBER TREAD OF INTERMEDIAL AND PERIPHERAL STRATIFIED ZONES - The invention relates to a tire having a rubber tread of a circumferentially zoned tread including stratified lateral tread zones. The tread zones are comprised of three circumferential load bearing zones, with each zone containing a portion of the running surface of the tread, comprised of an intermedial zone positioned between and two stratified lateral tread zones. The intermedial and stratified lateral zones are comprised of rubber compositions having differentiated rebound physical properties. The intermedial rubber zone, or layer, overlays a tread base rubber layer and underlies the lateral tread layer zones. The lateral tread zones are stratified in a sense of being separated from each other and also separated from the from the tread base rubber layer by the intermedial rubber layer. The stratified lateral tread zones are peripheral tread zones, or layers. | 03-03-2016 |
20160059633 | TIRE WITH CIRCUMFERENTIALLY ZONED TREAD INCLUDING STRATIFIED LATERAL ZONES AND PERIPHERAL SIDEWALL EXTENSIONS - The invention relates to a tire having a rubber tread of a circumferentially zoned tread including stratified lateral tread zones and peripheral sidewall extensions. The tread zones are comprised of three circumferential load bearing zones, with each zone containing a portion of the running surface of the tread, comprised of an intermedial zone positioned between and two stratified lateral tread zones together and, in addition, peripheral sidewall extensions. The intermedial and stratified lateral zones are comprised of rubber compositions having differentiated 100° C. hot rebound physical properties. The intermedial rubber zone, or layer, overlays a tread base rubber layer and underlies the lateral tread layer zones. The lateral tread zones are stratified in a sense of being separated from each other and also separated from the from the tread base rubber layer by the intermedial rubber layer. The tread includes a peripheral carbon black rich rubber layer as a sidewall extension which extends radially outward from the outer tire sidewall to thereby join a portion of the peripheral tread zone rubber layer and extends to and includes a portion of the running surface of the tread. | 03-03-2016 |
20160059634 | TIRE WITH RUBBER TREAD OF INTERMEDIAL AND LATERAL ZONES WITH PATH OF LEAST ELECTRICAL RESISTANCE - The invention relates to a tire having a rubber tread of a circumferentially zoned tread. The tread zones are comprised of three circumferential load bearing zones, with each zone containing a portion of the running surface of the tread, comprised of a silica-rich intermedial rubber zone positioned between and extending beneath two carbon black-rich lateral tread zones. The tread configuration contains an underlying carbon black-rich base rubber layer. The intermedial and stratified lateral zones are comprised of rubber compositions having differentiated rebound physical properties. A path of least electrical resistance extends from a lateral carbon black-rich rubber tread zone to the carbon black-rich tread base layer by an extension of a lateral tread zone or by an intermediate carbon black-rich rubber bridge. | 03-03-2016 |
20160059636 | TIRE WITH RUBBER TREAD OF INTERMEDIAL AND LATERAL ZONES WITH PERIPERIAL SIDEWALL EXTENSIONS - The invention relates to a tire with circumferentially zoned tread including peripheral sidewall extensions. The tread zones are comprised of three circumferential load bearing zones, with each zone containing a portion of the running surface of the tread, comprised of an intermedial rubber zone positioned between and extending beneath two stratified lateral tread rubber zones and, in addition, peripheral sidewall extensions. The tread configuration contains a carbon black reinforced tread base rubber layer underlying the intermedial tread rubber zone. The lateral tread rubber zones are therefore spaced apart from each other with the intermedial tread zone therebetween and also at least partially spaced apart from the tread base rubber layer with the intermedial tread zone therebetween. The tread includes a peripheral carbon black reinforced rubber layer as an extension of the tire sidewall which extends radially outward from the outer tire sidewall to thereby join a portion of a lateral tread zone which may extend to and include a portion of the running surface of the tread. | 03-03-2016 |
20160075183 | PNEUMATIC TIRE - An object is to make it possible to control fluctuations in wear of a tread. A pneumatic tire ( | 03-17-2016 |
20160089936 | HIGH-GRIP PROFILED TREAD SKIMS - A tire tread is provided that in an unworn state includes one or more tread features having a layer of a relatively softer, higher grip rubber material. This layer is formed from a first rubber composition that is provided as a skim or relatively thin layer at the contact surface of the tread feature. This skim provides the grip needed as the tire starts to warm up but can then wear away after an initial period of use so that the contact surface is eventually formed from a second rubber composition. This second rubber composition, in turn, provides the desired level of grip and acceptable wear at the higher temperatures that occur as the tire heats up from use. The layer of skim can be profiled depending upon the application and performance characteristics needed. | 03-31-2016 |
20160137001 | Tire Comprising An Improved Tread - Tire having a predetermined direction of mounting on a vehicle. The tire tread ( | 05-19-2016 |
20160167440 | TIRE WITH GROOVE REINFORCEMENT | 06-16-2016 |
20160375727 | Tire Comprising an Improved Tread - Tire comprising a tread ( | 12-29-2016 |
20180022161 | Tire With Directional Two-Material Tread, Comprising An Alternation Of Curved Blocks | 01-25-2018 |
20190143756 | TIRE TREAD WITH REDUCED ROLLING RESISTANCE | 05-16-2019 |