TICONA, LLC Patent applications |
Patent application number | Title | Published |
20150084228 | Reinforced Hollow Profiles - A hollow lineal profile formed from a continuous fiber reinforced ribbon (“CFRT”) that contains a plurality of continuous fibers embedded within a first thermoplastic polymer matrix. To enhance the tensile strength of the profile, the continuous fibers are aligned within the ribbon in a substantially longitudinal direction (e.g., the direction of pultrusion). In addition to continuous fibers, the hollow profile of the present invention also contains a plurality of long fibers that may be optionally embedded within a second thermoplastic matrix to form a long fiber reinforced thermoplastic (“LFRT”). The long fibers may be incorporated into the continuous fiber ribbon or formed as a separate layer of the profile. Regardless, at least at a portion of the long fibers are oriented at an angle (e.g., 90°) to the longitudinal direction to provide increased transverse strength to the profile. | 03-26-2015 |
20150044377 | Die with Flow Diffusing Gate Passage and Method for Impregnating Same Fiber Rovings - A die and a method for impregnating fiber rovings with a polymer resin are disclosed. The die includes a manifold assembly ( | 02-12-2015 |
20140309354 | Reduced Volatility Polyarylene Sulfide - Thermoplastic compositions that incorporate a polyarylene sulfide and exhibit reduced volatility are described. Methods for forming the thermoplastic composition are also described as are products that can incorporate the compositions. A formation method can include melt processing the composition and incorporating a molecular sieve in the composition downstream of the addition point for the polyarylene sulfide as well as downstream of additives that could interact with the molecular sieve such as coupling agents. | 10-16-2014 |
20140299907 | Reflector for Light-Emitting Devices - Polymer compositions are described that are well suited for producing reflectors for light-emitting devices, such as light-emitting diodes. In one embodiment, the polymer composition contains a polymer resin and a stabilizer comprising a phosphonate compound and/or a phosphate compound and optionally a white pigment. The polymer resin may comprise, for instance, a poly(1,4-cyclohexanedimethanol terephthalate). The phosphate stabilizer has been found to significantly improve the stability of the polymer composition without interfering with the ability of the composition to bond to other polymer materials, such as silicone resins. Silicone resins, for instance, are typically used as an encapsulant for light-emitting diode assemblies. | 10-09-2014 |
20140272365 | Antistatic Liquid Crystalline Polymer Composition - A liquid crystalline polymer composition that contains a conductive filler (e.g., carbon fibers, ionic liquid, etc.) and a plurality of mineral fibers distributed within a liquid crystalline polymer matrix is provided. Through careful selection of the conductive filler and mineral fibers, as well as the manner in which they are dispersed within the polymer matrix, the present inventors have discovered that a composition can be formed that has a reduced tendency to create a static electric charge during a molding operation, but yet also has good surface characteristics and mechanical properties. | 09-18-2014 |
20140272226 | Compact Camera Module - A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt % to about 60 wt. % of the polymer composition. | 09-18-2014 |
20140264183 | Liquid Crystalline Polymer Composition - A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt % to about 60 wt % of the polymer composition. | 09-18-2014 |
20140243485 | High Performance Polymer Composition with Improved Flow Properties - A polymer composition that contains at least one high performance polymer and at least one aromatic amide oligomer is provided. The oligomer can serve as a flow aid that lowers the overall viscosity of the polymer matrix under shear. | 08-28-2014 |
20140243481 | Manufacturing Process for Liquid Crystalline Polymer - The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films. | 08-28-2014 |
20140242385 | Liquid Crystalline Polymer Fibers - A fiber formed from a polymer composition that comprises a liquid crystalline polymer and an aromatic amide oligomer is provided. The present inventors have discovered that the oligomer can act as a flow aid for the polymer, which can provide a variety of different benefits. For example, the use of the oligomer during polymerization can lower the melt viscosity of the polymer as it is formed. This enables the formation of high molecular weight polymers that do not solidify within the reactor vessel. The formation of high molecular weight polymers during melt polymerization can, in turn, provide a variety of benefits, such as allowing for higher molecular weight polymers to be formed through additional processing (e.g., solid state polymerization) than conventionally possible, as well as enhancing the melt strength of the polymer composition and thereby aiding in the fiber formation process. | 08-28-2014 |
20140191437 | Impregnation Section with Tension Adjustment Device and Method for Impregnating Fiber Rovings - An impregnation section of a die ( | 07-10-2014 |
20140187682 | IMPACT MODIFIED POLYOXYMETHYLENE COMPOSITION AND ARTICLES MADE THEREFROM THAT ARE STABLE WHEN EXPOSED TO ULTRAVIOLET LIGHT - A polymer composition is disclosed containing a coupling agent and an impact modifier that renders the composition resistant to ultraviolet light degradation. The polymer composition contains an aliphatic coupling agent, an aliphatic impact modifier, or both an aliphatic coupling agent and an aliphatic impact modifier. The polymer composition is well suited to producing molded articles, especially articles that will later be exposed to substantial amounts of ultraviolet light. For example, molded articles made according to the present disclosure are well suited for use on the interior of vehicles where the parts are not only exposed to ultraviolet light, but are also exposed to repeated thermal cycles. | 07-03-2014 |
20140186562 | Conductive Polyoxymethylene Based on Stainless Steel Fibers - Polymer compositions containing a polyoxymethylene base polymer that is compounded with a conductive filler, a polyalkylene glycol, and a metal oxide are disclosed that exhibit electrostatic dissipative (ESD) capabilities while also being resistant to degradation upon exposure to aggressive fuels. For instance, the polymer compositions can have a volume resistivity of from about 1 Ohm-cm to about 200 Ohm-cm and a surface resistivity of about 10 | 07-03-2014 |
20140183418 | Carbon Fiber Reinforced Polyoxymethylene for Printer Spindles - Polymer compositions containing a polyoxymethylene base polymer that is compounded with a conductive filler. The polymer composition is formulated so as to increase the electrically conductivity of the polymer composition and articles formed therefrom while at the same time having a high enough stiffness via the addition of a conductive filler. The polyoxymethylene base polymer has a melt flow rate ranging from about 15 grams per 10 minutes to about 50 grams per 10 minutes at 190° C. and a 2.6 kilogram load in accordance with ASTM D1238-82. Further, the polymer composition has a modulus of from about 10,000 MPa to about 20,000 MPa. The polymer composition can be used to form molded parts such as printer spindles where conductivity, wear resistance, and stiffness are required. | 07-03-2014 |
20140179841 | Stabilized Polymer Composition Containing an Impact Modifier - An impact modified polyoxymethylene polymer composition is described containing a melt flow stabilizer. The polymer composition may contain a polyoxymethylene polymer containing functional groups, a thermoplastic elastomer and a coupling agent. A melt flow stabilizer is added to the composition in order to stabilize the melt volume flow rate of the composition after the components have been formulated. The melt flow stabilizer may comprise a pyridine derivative. | 06-26-2014 |
20140179840 | Low Emission, UV Stabilized High Strength Acetal Copolymer - Polymer compositions and molded articles made from the polymer compositions are described which contain a high strength polyoxymethylene polymer, an emission control agent, and at least one light stabilizer. The polymer composition not only has excellent resistance to ultraviolet light but also exhibits low formaldehyde emission. In one embodiment, the emission control agent comprises allantoin while the light stabilizer comprises a hindered amine. | 06-26-2014 |
20140178705 | Aromatic Polyester Coatings and Laminates - A method for coating a non-metallic substrate with a polymer solution that includes an aromatic polyester and a solvent is provided. By selectively controlling the nature of the aromatic polyester, the present inventors have discovered that such polymer solutions can be readily formed, thereby enabling the use of simpler and less complex techniques (e.g., solvent casting) for coating substrates with aromatic polyesters. Moreover, the nature of the polyester and its relative concentration in the solution can also be tailored to achieve coatings that not only adhere well to the substrate, but also possess good thermal and mechanical properties for use in a wide variety of potential applications. | 06-26-2014 |
20140178687 | Monofilament Fibers Made From a Polyoxymethylene Composition - A monofilament fiber as described made from a polyoxymethylene polymer. Polyoxymethylene polymer can be blended with an abrasion additive in order to improve abrasion resistance. The polyoxymethylene polymer may be combined with a thermoplastic elastomer and a coupling agent. The fiber can be used as fishing line, as bristles for a brushing device, or the like. | 06-26-2014 |
20140178662 | Multilayer Polyarylene Sulfide Composite - A multilayer composite is described as well as methods for forming the multilayer composite and products that incorporate the multilayer composite. The multilayer composite includes a continuous fiber composite first layer and a second layer that is formed from the melt directly on the continuous fiber composite. The continuous fiber composite includes a plurality of unidirectionally aligned carbon fibers embedded within a polymer composition that includes a first polyarylene sulfide. The second layer includes a second polymer composition that can be the same as or different from the first polymer composition. Products can include electronic devices such as computers, cellular telephones, e-readers, etc. as well as panels, such as interior panels in vehicles. | 06-26-2014 |
20140178654 | Porous Substrate Impregnated with an Aromatic Polyester - A prepreg composite that contains a porous substrate impregnated with an aromatic polyester is provided. In addition to possessing a high degree of heat and moisture resistance, the present inventors have also discovered that the nature of the aromatic polyester can be selectively controlled so that it is soluble in a solvent. This allows for the formation of polymer solutions that can be readily employed to impregnate the porous substrate. The nature of the polyester and its relative concentration in the solution can also be tailored to achieve polymers that not only adhere well to the substrate, but also possess good thermal and mechanical properties for use in a wide variety of potential applications. | 06-26-2014 |
20140177155 | Overmolded Composite Structure for an Electronic Device - An overmolded composite structure that contains a metal component and a resinous component adhered to a surface thereof is provided. The resinous component is formed from a thermoplastic composition that contains at least one polyarylene sulfide and at least one mineral filler. The present inventors have discovered that the nature and relative concentration of the polyarylene sulfides, mineral fillers, and/or other materials in the thermoplastic composition can be selectively tailored so that the resulting resinous component has a coefficient of linear thermal expansion and/or color that is similar to the metal component. | 06-26-2014 |
20140175696 | System and Method for Forming Fiber Reinforced Polymer Tape - Systems and methods for forming fiber reinforced polymer tapes are disclosed. A method may include, for example, traversing a polymer impregnated roving through a system comprising an inlet and an outlet, applying a consolidation pressure within the system to the polymer impregnated roving, and applying a smoothing pressure within the system to the polymer impregnated roving. The method may further include adjusting a temperature of the polymer impregnated roving with a heat transfer device between the inlet and the outlet, the heat transfer device having a temperature different from a temperature of the polymer impregnated roving at the inlet. | 06-26-2014 |
20140171576 | Liquid Crystalline Composition having a Dark Black Color - A shaped part that is formed from a polymer composition that contains a liquid crystalline polymer and a black pigment is provided. By selectively controlling the type and relative concentration of these components, the polymer composition and shaped parts formed therefrom can have a dark black appearance, and yet still exhibit good thermal and mechanical properties at high temperatures. | 06-19-2014 |
20140170415 | Multicomponent Fiber Containing a Polyarylene Sulfide - A multicomponent fiber that contains two or more components arranged in distinct zones across the cross-section of the multicomponent fiber is provided. The components are arranged in a sheath/core configuration in which the core component is substantially surrounded by the sheath component. One of the sheath and the core is formed from a polyarylene sulfide composition and the other of the sheath and the core is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide. Further, the polyarylene sulfide is “functionalized” in that it contains at least one functional group in its molecular structure (e.g., at its molecular terminal end). Without intending to be limited by theory, it is believed that such functional groups can improve the adhesion between the core and sheath components, thereby resulting in a fiber having improved thermal and mechanical properties. | 06-19-2014 |
20140170353 | Blow Molded Composite Component and Method - Composite components and methods for forming composite components are provided. A method includes inserting a continuous fiber reinforced thermoplastic tape into a molding device, and feeding a parison into the molding device. The parison includes a thermoplastic material. The method further includes blow molding the parison within the molding device such that the parison bonds with the tape, forming the composite component. A composite component includes a blow molded inner layer comprising a thermoplastic material. The composite component further includes an outer layer bonded to the inner layer during blow molding of the inner layer. The outer layer includes a continuous fiber reinforced thermoplastic tape. | 06-19-2014 |
20140167088 | Molded Reflectors for Light-Emitting Diode Assemblies - Polymer compositions are described that are well suited for producing reflectors for light-emitting devices, such as light-emitting diodes. In one particular embodiment, the polymer composition contains a polymer resin, a white pigment, a silicone compound, and a nucleating agent. The polymer resin may comprise, for instance, a poly(1,4-cyclohexanedimethanol terephthalate). In accordance with the present disclosure, the composition also contains at least one silicone compound and at least one nucleating agent. The silicone compound and nucleating agent have been found to improve the molding processability and reflectance stability of the polymer composition. | 06-19-2014 |
20140166940 | Laser-Weldable Electrostatically Dissipative Polyoxymethylene Based on Stainless Steel Fibers - Polymer compositions containing a polyoxymethylene base polymer that is compounded with a conductive filler and pigment carbon black are disclosed that exhibit electrostatic dissipative (ESD) capabilities while also being laser weldable. The polymer composition can be formed into shaped or molded articles such as filters, flanges, connectors, etc. for use in fuel systems where conductivity, ductility, weldability, and resistance to aggressive fuels are required. The compositions can be compounded into a pellet product which can then be formed into a shaped article that complies with the ESD capabilities required by SAE J1645. At the same time, parts produced from the compositions can absorb laser energy sufficiently to form a high quality welded interface with parts produced from other compositions that are transparent to laser radiation and cannot absorb laser energy sufficiently. | 06-19-2014 |
20140151610 | Conductive Liquid Crystalline Polymer Composition - A liquid crystalline polymer composition that is thermally and/or electrically conductive and has a reduced tendency to create a static electric charge during a molding operation is provided. More particularly, the composition contains carbon fibers distributed within a liquid crystalline polymer matrix. Through the use of carbon fibers having relatively high purity, high temperature sizing agent, and/or various process parameters, molded parts can be produced having excellent characteristics while minimizing the amount of carbon fibers contained within the polymer matrix. | 06-05-2014 |
20140142571 | Liquid Crystalline Polymer Composition for Melt-Extruded Substrates - A polymer composition that can be readily melt-extruded into a shaped three-dimensional substrate (e.g., tube) and also applied with a conductive element using a laser direct structuring (“LDS”) process. In this regard, the composition contains a thermotropic liquid crystalline polymer and a laser activatable additive. The specific nature of the polymer and relative concentration of the polymer and additive are selectively controlled so that the resulting composition can possess both a relatively high melt viscosity and melt strength. | 05-22-2014 |
20140142228 | Plasticized, Conductive Polyoxymethylene for Fuel Applications - Polymer compositions containing a plasticized, impact modified polyoxymethylene composition that is compounded with a conductive filler composition are disclosed that are flexible while also exhibiting electrostatic dissipative (ESD) capabilities. The polymer compositions can be formed into shaped articles such as tubes, hoses, etc. for use in fuel transfer systems. The plasticized, impact modified polyoxymethylene composition includes a functionalized polyoxymethylene, a plasticizer, and an impact modifier. Meanwhile, the conductive filler composition includes a conductive filler and a high flow polyoxymethylene. The compositions can be compounded into a pellet product which can then be formed into a shaped article that complies with the ESD capabilities required by SAE J1645. It is also to be understood that the polymer composition components can be blended and formed into a pellet product in a single step that can be used to produce a shaped article that complies with the ESD capabilities required by SAE J1645. | 05-22-2014 |
20140137975 | Plasticized, Conductive Polyoxymethylene for Fuel Applications - Polymer compositions containing a plasticized, impact modified polyoxymethylene composition that is compounded with a conductive filler composition are disclosed that are flexible while also exhibiting electrostatic dissipative (ESD) capabilities. The polymer compositions can be formed into shaped articles such as tubes, hoses, etc. for use in fuel transfer systems. The plasticized, impact modified polyoxymethylene composition includes a functionalized polyoxymethylene, a plasticizer, and an impact modifier. Meanwhile, the conductive filler composition includes a conductive filler and a high flow polyoxymethylene. The compositions can be compounded into a pellet product which can then be formed into a shaped article that complies with the ESD capabilities required by SAE J1645. It is also to be understood that the polymer composition components can be blended and formed into a pellet product in a single step that can be used to produce a shaped article that complies with the ESD capabilities required by SAE J1645. | 05-22-2014 |
20140135469 | LIQUID CRYSTALLINE POLYMER COMPOSITION FOR FILMS - A film formed from a polymer composition containing one or more thermotropic liquid crystalline polymers is provided. The specific nature of the polymer or blend of polymers is selectively controlled so that the resulting polymer composition possesses both a low viscosity and high melt strength. The present inventor has discovered that this unique combination of thermal properties results in a composition that is both highly melt processible and stretchable, which allows the resulting film to be oriented to a degree greater than previously thought possible. | 05-15-2014 |
20140134419 | LIQUID CRYSTALLINE POLYMER COMPOSITION FOR MELT-EXTRUDED SHEETS - A melt-extruded sheet form thermoforming applications is provided. The sheet is formed from a polymer composition containing one or more thermotropic liquid crystalline polymers. The specific nature of the polymer or blend of polymers is selectively controlled so that the resulting polymer composition possesses both a low viscosity and high melt strength. | 05-15-2014 |
20140127481 | Polyoxymethylene with Improved Printability - Polymer compositions containing a polyoxymethylene polymer are disclosed that are receptive to paints and ink coatings. The polymer composition contains a polyoxymethylene polymer having a relatively high functional group content in combination with a coupling agent, a texturizing agent, and optionally a thermoplastic elastomer. The polymer composition can be molded into various articles at a mold temperature less than about 125° C., such as from about 60° C. to about 120° C. and then painted or printed with an ink composition. The polymer composition has been found to dramatically improve adhesion between the molded article and the ink or paint coating. | 05-08-2014 |
20140120282 | Multi-Layered Co-Injection Molded Article - A multi-layered, co-injection molded article is disclosed that includes a barrier layer that is formed from a thermotropic liquid crystalline polymer and disposed adjacent to a protective layer, which is formed from a base polymer (e.g., olefinic polymer). | 05-01-2014 |
20140106166 | Continuous Fiber Reinforced Thermoplastic Rod and Pultrusion Method for Its Manufacture - A composite rod for use in various applications, such as electrical cables (e.g., high voltage transmission cables), power umbilicals, tethers, ropes, and a wide variety of other structural members, is provided. The rod includes a core that is formed from a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix. The present inventors have discovered that the degree to which the rovings are impregnated with the thermoplastic polymer matrix can be significantly improved through selective control over the impregnation process, and also through control over the degree of compression imparted to the rovings during formation and shaping of the rod, as well as the calibration of the final rod geometry. Such a well impregnated rod has a very small void fraction, which leads to excellent strength properties. Notably, the desired strength properties may be achieved without the need for different fiber types in the rod. | 04-17-2014 |
20140105590 | Antistatic Liquid Crystalline Polymer Composition - A liquid crystalline polymer composition having a reduced tendency to create a static electric charge during a molding operation is provided. More particularly, the composition contains an ionic liquid that is distributed within a liquid crystalline polymer matrix. In addition to being electrically conductive, the ionic liquid can exist in liquid form during melt processing, which allows it to be more uniformly blended within the liquid crystalline polymer matrix. This improves electrical connectivity and thereby enhances the ability of the composition to rapidly dissipate static electric charges from its surface. | 04-17-2014 |
20140102760 | Composite Core for Electrical Transmission Cables - A composite core for use in electrical cables, such as high voltage transmission cables is provided. The composite core contains at least one rod that includes a continuous fiber component surrounded by a capping layer. The continuous fiber component is formed from a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix. The present inventors have discovered that the degree to which the rovings are impregnated with the thermoplastic polymer matrix can be significantly improved through selective control over the impregnation process, and also through control over the degree of compression imparted to the rovings during formation and shaping of the rod, as well as the calibration of the final rod geometry. Such a well impregnated rod has a very small void fraction, which leads to excellent strength properties. Notably, the desired strength properties may be achieved without the need for different fiber types in the rod. | 04-17-2014 |
20140099459 | Liquid Crystalline Composition for Use in a Foodstuff Article - A shaped part that is formed from a polymer composition that contains a liquid crystalline polymer and a metallic pigment is provided. By selectively controlling the type and relative concentration of these components, the polymer composition and shaped parts formed therefrom can have a metallic-like appearance. In addition to possessing an aesthetically pleasing appearance similar to stainless steel articles, the metallic-like appearance can also provide a signal to a user that the foodstuff article can be safely heated in an oven or stove. | 04-10-2014 |
20140099458 | Liquid Crystalline Composition with a Metallic Appearance - A polymer composition that contains a liquid crystalline polymer and a metallic pigment formed from metal particles and a carrier resin is provided. The polymer composition also contains an organophosphorous antioxidant that can help reduce the production of odorous compounds at high temperatures. The carrier resin used to form the metallic pigment may also be selectively controlled to minimize the production of odorous compounds. For example, the carrier resin may be a nonpolar wax with a relatively low acid value (e.g., polyolefin wax). | 04-10-2014 |
20140093649 | Impregnation Section with Rollers and Method for Impregnating Fiber Rovings - An impregnation section of a die ( | 04-03-2014 |
20140088285 | Crosslinkable Liquid Crystalline Polymer - A crosslinkable liquid crystalline polymer that is formed by polymerizing a precursor monomer in the presence of an aromatic crosslinking agent is provided. The crosslinking agent has the following general formula (I): | 03-27-2014 |
20140088284 | Crosslinkable Liquid Crystalline Polymer - A crosslinkable liquid crystalline polymer that is formed by polymerizing a precursor monomer in the presence of an aromatic crosslinking agent is provided. The crosslinking agent has the following general formula (I): | 03-27-2014 |
20140088247 | Crosslinkable Aromatic Polyester - A crosslinkable aromatic polyester that is formed by polymerizing certain precursor monomers in the presence of a biaromatic crosslinking agent is provided. The crosslinkable aromatic polyester can have a relatively high melting temperature. For example, the melting temperature of the crosslinkable polyester may be from about 200° C. to about 370° C. While having a relatively high melting temperature, the crosslinkable polyester can maintain a relatively low melt viscosity so that it can be readily removed from the polymerization reactor without solidifying therein. | 03-27-2014 |
20140087165 | Aromatic Polyester Containing a Biphenyl Chain Disruptor - An aromatic polyester that contains one or more aromatic ester repeating units and one or more biphenyl repeating units is provided. While a wide variety of aromatic ester repeating units may be employed, the polymer is nevertheless “low naphthenic” to the extent that it contains a minimal content of repeating units derived from naphthenic hydroxycarboxylic acids and naphthenic dicarboxylic acids. Despite the absence of a high level of conventional naphthenic acid repeating units, the present inventors have discovered that selective control over the type and relative concentration of the biphenyl repeating units can lead to “low naphthenic” polymers that are not only soluble in certain solvents, but also capable of exhibiting good mechanical properties. Thus, the ability of the resulting polymer to be dissolved or dispersed in various solvents can be enhanced without sacrificing performance. | 03-27-2014 |
20140087149 | SOLUBLE AROMATIC POLYMER - An aromatic copoly(ester-sulfone) that contains one or more aromatic ester repeating units and one or more aromatic sulfonyl repeating units is provided. While a wide variety of aromatic ester repeating units may be employed, the polymer is nevertheless “low naphthenic” to the extent that it contains a minimal content of repeating units derived from naphthenic hydroxycarboxylic acids and naphthenic dicarboxylic acids. Despite the absence of a high level of conventional naphthenic acid repeating units, the present inventors have discovered that selective control over the type and relative concentration of the aromatic sulfonyl repeating units can lead to “low naphthenic” polymers that are not only soluble in certain solvents, but also capable of exhibiting good mechanical properties. Thus, the ability of the resulting polymer to be dissolved or dispersed in various solvents can be enhanced without sacrificing performance. | 03-27-2014 |
20140087086 | Thermotropic Liquid Crystalline Powder - A powder that contains microparticles formed from an aromatic polyester is provided. The mean size of the microparticles is generally from about 0.1 to about 40 micrometers. The microparticles may also have a shape that is generally spherical in nature. Regardless of the actual size and shape, however, the size distribution of the microparticles may be consistent throughout the powder. For example, at least about 50% by volume of the microparticles may have a mean size within a range of from about 0.1 to about 200 micrometers. Without intending to be limited by theory, the present inventor believes that a certain size and/or size distribution can improve the quality of coatings formed from the powder. | 03-27-2014 |
20140079898 | Polymer Articles Made From a Blend of a Copolyester Elastomer and an Alpha-Olefin Vinyl Acetate Copolymer - A polymer composition is disclosed that contains a thermoplastic elastomer combined with an α-olefin and vinyl acetate copolymer. In one embodiment, the composition contains a thermoplastic polyester elastomer combined with an ethylene and vinyl acetate copolymer. Various synergistic effects may be realized by combining the two polymers together. In particular, a resulting polymer mixture can be produced that has many of the properties of the thermoplastic elastomer and also has controlled melt flow properties. In addition, the polymer composition may have improved and controllable mechanical and thermal properties and color stability. The polymer composition may be processed using injection molding, blow molding, or extrusion and may undergo secondary processing. According to the present disclosure, the polymer composition and molded part may exhibit certain advantages such as a light weight, improved thermal and chemical stability, specific strength, elastic recovery, cold temperature impact strength, and fatigue and kink resistance. | 03-20-2014 |
20140067000 | Implantable Medical Device Containing Fibers Formed from a Liquid Crystalline Polymer - An implantable medical device that employs one or more fibers formed from a polymer composition that contains at least one liquid crystalline polymer is provided. In addition to being highly inert and biocompatible, the rigid rod-like structure of liquid crystalline polymers can allow them to be particularly well suited for implantable devices. Apart from the benefits from the polymer itself, the fibers are formed in such a manner so that they are generally flexible, but yet still possess a sufficient degree of strength so that they can be effectively employed in implantable medical devices. | 03-06-2014 |
20140066564 | Molded Articles Made From A Translucent Polymer Composition - A translucent polymer composition is described that contains a thermoplastic polymer combined with an impact modifier. The thermoplastic polymer may comprise a polyester copolymer that is substantially amorphous. The impact modifier may have a core and shell construction and may be configured so as to substantially match the refractive index of the polyester polymer. The polymer composition may also contain at least one stabilizer, an anti-scratch additive, a glitter-like additive, in addition to other components. In one embodiment, the polymer composition substantially blocks ultraviolet rays. In particular, the polymer composition can be formulated so that within the ultraviolet light wavelength range, the polymer composition displays 0% transmission or less. | 03-06-2014 |
20140054217 | WASTEWATER AERATION - A process for the aeration of wastewater employs an aerator comprising a porous body having an average pore size from 5 to 250 μm produced by sintering a composition comprising polyethylene particles having a molecular weight of at least 3×10 | 02-27-2014 |
20140052264 | Porous, Stabilized Craniomaxillofacial Implants and Methods and Kits Relating Thereto - Porous craniomaxillofacial implants may include a plurality of polymeric particles sintered together at a plurality of contact points to form a porous network having pores; and an antioxidant disposed on a surface of at least some of the polymeric particles and/or in the pore of the porous network, so as to stabilize the implants from at least some oxidative damage during storage, transportation, and/or implementation (in vivo and/or ex vivo). Preferably, the polymeric particles include at least one of polyethylene, a polyethylene-polypropylene copolymer, a polyethylene-polybutylene copolymer, polytetrafluoroethylene, and expanded polytetrafluoroethylene. | 02-20-2014 |
20140051771 | Biomedical Devices Comprising Molded Polyethylene Components - A molded polyethylene component that comprises polyethylene having a melt flow index of about 3.5 g/10 min or greater as measured by ASTM D1238 at 190° C./21.5 kg weight and having an ash content of about 500 ppm or less may be useful biomedical devices, including kits and methods relating thereto. | 02-20-2014 |
20140050931 | Directly Metallizable Polyarylene Sulfide Composition - A thermoplastic composition is described that can be directly coated with a metal according to a metallization process with no intervening base coat formation process necessary. The thermoplastic composition includes a polyarylene sulfide and a filler having a selectively controlled average length and aspect ratio. Molded articles formed of the thermoplastic composition can have an ultra-smooth surface so as to directly accept a metallization coating. | 02-20-2014 |
20140045978 | Reinforced PCT Compositions - The invention relates to polymer compositions comprising PCT (poly((cyclohexylene-dimethylene) terephthalate)) polymer and a fibrous glass filler having a non-circular cross-sectional aspect ratio of greater than at or about 4. | 02-13-2014 |
20140039463 | Adhesion Enhancement Additives for Liquid Crystal Polymer Compositions and Methods Relating Thereto - A liquid crystal polymer composition may comprise a liquid crystal polymer and an adhesion enhancement compound. Such a liquid crystal polymer may be utilized in layered articles, molded articles, and like and products like solar cells, optoelectronic structures, medical equipment, and tubing. Further, ethylene vinyl acetate adhesives may be utilized in some of the layered articles. | 02-06-2014 |
20140037842 | Impregnation Section of Die and Method for Impregnating Fiber Rovings - An impregnation section ( | 02-06-2014 |
20140034350 | Umbilical for Use in Subsea Applications - An umbilical ( | 02-06-2014 |
20140030508 | Powder Containing a Polyoxymethylene Polymer For Coating Metallic Substrates - A powder containing a polyoxymethylene polymer for coating metallic substrates is described. The polymeric particles are made from a polymeric composition containing a polyoxymethylene polymer having functional terminal groups. The polyoxymethylene polymer is blended with at least one functional additive. The functional additive can decrease the stiffness of the polyoxymethylene polymer, can decrease the shrinkage properties of the polyoxymethylene polymer and/or increase adhesion of the polymer to metal surfaces. | 01-30-2014 |
20140028005 | Airbag Inflator and Method for Forming Airbag Inflator - Airbag inflators and methods for forming airbag inflators are disclosed. An airbag inflator includes a hollow body comprising a wall, the wall having an inner surface defining an interior and an outer surface. The airbag inflator further includes a reinforcement layer surrounding and bonded to the hollow body. The reinforcement layer has an inner surface and an outer surface, the inner surface of the reinforcement layer in contact with the outer surface of the wall. The reinforcement layer is formed from a fiber reinforced thermoplastic material comprising a plurality of fibers dispersed in a thermoplastic resin. | 01-30-2014 |
20140027944 | Die and Method for Impregnating Fiber Rovings - A die and a method for impregnating fiber rovings ( | 01-30-2014 |
20140023817 | Wear Resistant Thermoplastic Copolyester Elastomer - An elastomeric polymer composition is disclosed that is wear resistant at a broad range of temperatures. The composition contains a thermoplastic elastomer, such as a thermoplastic polyester elastomer, that forms a polymer matrix in products made from the polymer composition. The polymer composition may also contain a fluoropolymer and/or unmodified or functionalized ultra-high molecular weight polyolefin particles, such as ultra-high molecular weight polyethylene particles. | 01-23-2014 |
20140005331 | Asymmetric Fiber Reinforced Polymer Tape | 01-02-2014 |
20140004328 | Ultralow Viscosity Liquid Crystalline Polymer Composition | 01-02-2014 |
20130330491 | VOC or Compressed Gas Containment Device Made From a Polyoxymethylene Polymer - VOC or compressed gas containment devices, such as polymer fuel tanks, are made from a polyoxymethylene polymer composition. The polymer composition contains a polyoxymethylene polymer that is directly or indirectly chemically attached to an impact modifier. In one embodiment, for instance, a coupling agent bonds the impact modifier to the polyoxymethylene polymer. In order to preserve the permeability of the polymer material when combined with the impact modifier, a polyoxymethylene polymer is used that contains a low level of low molecular weight constituents. | 12-12-2013 |
20130324675 | Low Emission Polyoxymethylene - Low VOC emission polyoxymethylene and compositions and products that incorporate the polyoxymethylene are described. The polyoxymethylene is end capped with compound that can prevent degradation of the polymer and subsequent emission of VOC degradation products such as formaldehyde. The end-capped polyoxymethylene can include an inorganic linkage within the polymer backbone that is the reaction product of a terminal hydroxyl group of the polyoxymethylene and a hydrolyzable group of the compound. Also disclosed are products as may be formed from the low VOC emission polyoxymethylene. | 12-05-2013 |
20130323447 | Fiber Reinforced Shaped Articles and Process for Making Same - Blow molded articles are made from a polymeric composition containing a mixture of polyphenylene sulfide resins. For instance, the polymeric composition may contain a linear polyphenylene sulfide resin combined with a branched polyphenylene sulfide resin. The composition can further contain a reinforcing agent, such as glass fibers, a polytetrafluoroethylene polymer, a polyphenylene oxide polymer, a silane coupling agent, and/or an impact modifier. Compositions made according to the present disclosure can have relatively high near zero shear rate melt strengths while also having high shear rate melt viscosities and high engineering stresses at a high percent elongations, making the compositions amenable to extrusion and molding processes. Compositions made according to the present disclosure are particularly well suited to molding articles with a complex shape. When producing blow molded articles, for instance, the composition provides better control over wall thickness while having improved interior surface smoothness at higher throughput and extrusion rates. | 12-05-2013 |
20130313196 | PROCESSES AND FILTERS FOR DESALINATION OF WATER - In a process for the desalination of water, an impure, salt-containing water feed is passed through one or more filter media to remove from the feed impurities having a particle size greater than 50 μm and produce a first filtered water stream. The first filtered water stream is then passed through at least one further filter having an average pore size of 1 μm to 60 μm produced from sintered polyethylene particles having a molecular weight of at least 4×10 | 11-28-2013 |
20130312605 | GAS PHASE AIR FILTRATION - An adsorbent medium for removing gaseous contaminants from air comprises a porous self-supporting filter element produced by sintering particles of polyethylene having a molecular weight greater than 400,000 g/mol as determined by ASTM-D 4020 and an adsorbent. In one embodiment, the filter element comprises a body perforated by a plurality of holes extending in the direction of fluid flow in use and having a diameter of less than 10 mm. In another embodiment, the filter element comprises a panel wherein at least the surface of the panel presented, in use, to the incoming air comprises a plurality of projections. In a further embodiment, the filter element comprises a fibrous web having particles of the adsorbent secured to the web by the sintered polyethylene. | 11-28-2013 |
20130312603 | PROCESSES AND SORBENTS FOR SEPARATION OF GASES BY CYCLIC ADSORPTION - A sorbent medium for a cyclic adsorption process comprises at least one self-supporting porous body produced by sintering a mixture of a powdered adsorbent and polyethylene particles having a molecular weight of at least 4×10 | 11-28-2013 |
20130309442 | Structural Member with Locally Reinforced Portion and Method for Forming Structural Member - Structural members and methods for forming structural members are provided. A structural member includes a body portion and a locally reinforced portion. The body portion is formed from a long fiber thermoplastic material, the long fiber thermoplastic material including a plurality of long fibers dispersed in a thermoplastic resin. The locally reinforced portion is formed from a continuous fiber thermoplastic material overmolded by the long fiber thermoplastic material, the continuous fiber thermoplastic material including a plurality of continuous fibers dispersed in a thermoplastic resin. | 11-21-2013 |
20130298427 | Polymer Composition and Articles For Use in Low Temperature Environments That Are Wear Resistant - Ski boots and other cold weather articles are described made from polymer compositions that are exceptionally stable at low temperatures. The polymer composition, for instance, may contain a thermoplastic polymer, a thermoplastic elastomer, an impact modifier and a wear resistant additive. In one embodiment, various polymer components are selected such that they do not undergo a second order transition within a temperature range of from about 50° C. to about −40° C., and particularly from about 23° C. to about −40° C. In one embodiment, the polymer compositions are used to mold the outer shell of a snow ski boot. | 11-14-2013 |
20130276562 | HIGH LOAD CAPACITY SEAT ASSEMBLY AND DRIVE SYSTEM FOR SEAT ASSEMBLY - A drive system for moving a support assembly is disclosed. The drive system includes a lead screw configured for connection to the support assembly and defining a longitudinal axis. The drive system further includes an epicyclic gear assembly. The epicyclic gear assembly includes a carrier and a plurality of rotatable gears. The epicyclic gear assembly is rotationally coupled to the lead screw. Operation of the epicyclic gear assembly causes translation of the support assembly along the longitudinal axis. | 10-24-2013 |
20130273799 | Polyarylene Sulfide Fibers and Composites Including the Fibers - Polyarylene sulfide fibers and products that incorporate the polyarylene sulfide fibers are described as are methods of forming the fibers and products. The polyarylene sulfide fibers can incorporate a reactively functionalized polyarylene sulfide that can provide improved compatibility between the polyarylene sulfide and other materials, including both additives to the polyarylene sulfide composition that is used to form the fibers and external materials that may be located adjacent to the fibers in a composite. | 10-17-2013 |
20130273289 | Automotive Fuel Lines Including A Polyarylene Sulfide - A fuel line comprising a thermoplastic composition is described. The thermoplastic compositions exhibit high strength and flexibility and can be used to form one or more layers of single layer or multi-layer fuel lines. Methods for forming the thermoplastic compositions are also described. Formation methods include dynamic vulcanization of a composition that includes an impact modifier dispersed throughout a polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures. | 10-17-2013 |
20130273288 | Polyarylene Sulfide for Oil and Gas Flowlines - Flowlines for use in oil and gas applications are described. The flowlines include a barrier layer that includes polyarylene sulfide composition that exhibits high strength and flexibility characteristics. Methods for forming the flowlines are also described. Formation methods include dynamic vulcanization of a polyarylene sulfide composition that includes an impact modifier dispersed throughout the polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier throughout the composition. The flowlines can include production fluid flowlines, supporting fluid flowlines, bundled flowlines, etc. and can be utilized as risers, pipelines, jumpers, and the like. | 10-17-2013 |
20130273287 | Blow Molded Thermoplastic Composition - Components formed of blow molded thermoplastic compositions are described. The blow molded thermoplastic compositions exhibit high strength and flexibility. Methods for forming the thermoplastic compositions are also described. Formation methods include dynamic vulcanization of a composition that includes an impact modifier dispersed throughout a polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures and can be used to form, e.g., tubular member such as pipes and hoses and fibers. | 10-17-2013 |
20130273286 | Polyarylene Sulfide Components for Heavy Duty Trucks - Components for heavy duty trucks are described that exhibit high strength and flexibility. The components are formed from a polyarylene sulfide that exhibits high strength and flexibility characteristics. Methods for forming the components are also described. Formation methods include dynamic vulcanization of a polyarylene sulfide composition that includes an impact modifier dispersed throughout the polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier throughout the composition. The heavy duty truck components can include tubular member such as pipes and hoses that can be utilized in exhaust systems, charge air systems, urea tanks, fuel systems, and so forth. | 10-17-2013 |
20130273283 | Ultraviolet Radiation Stabilized Polyarylene Sulfide Composition - Disclosed is a UV stabilized polyarylene sulfide composition, methods of forming the composition, and UV stabilized products that can be formed of the composition. The UV stabilized polyarylene sulfide composition can include a reactively functionalized polyarylene sulfide polymer in conjunction with a UV stabilizer. The reactivity of the polyarylene sulfide polymer is formed during melt processing via reaction of a reactively functionalized disulfide compound with a starting polyarylene sulfide. The reactivity of the polyarylene sulfide can encourage interaction between the polyarylene sulfide polymer and the UV stabilizer, which can improve dispersion of the UV stabilizer throughout the composition and improve miscibility between the polyarylene sulfide polymer and the UV stabilizer. Products can incorporate high concentrations of UV stabilizer and/or can be formed to very small cross sectional dimensions without phase separation between the UV stabilizer and the polyarylene sulfide. | 10-17-2013 |
20130273280 | Continuous Fiber Reinforced Polyarylene Sulfide - A continuous fiber composite is described and methods for forming the continuous fiber composite. The continuous fiber composite includes a plurality of unidirectionally aligned continuous fibers embedded within a polyarylene sulfide polymer. The continuous fiber composite includes a very high loading of continuous fibers, for instance greater than about 40% by weight of the continuous fiber composite. The continuous fiber composite is formed by reacting a starting polyarylene sulfide with a reactively functionalized disulfide compound in a melt processing unit. Reaction between the starting polyarylene sulfide and the reactively functionalized disulfide compound leads to formation of a reactively functionalized polyarylene sulfide. Upon embedding of the continuous fibers into the reactively functionalized polyarylene sulfide, the reactivity of the polyarylene sulfide can enhance adhesion between the polyarylene sulfide polymer and the fibers. | 10-17-2013 |
20130269819 | Pipe Section Having Bonded Composite Barrier Layer - Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body formed from a metal material, the hollow body having an inner surface and an outer surface, the inner surface defining an interior. The pipe section further includes a barrier layer surrounding and bonded to the hollow body, the barrier layer having an inner surface and an outer surface. The barrier layer is formed from a continuous fiber reinforced thermoplastic material. Such pipe sections may be lightweight and flexible while exhibiting improved strength characteristics. | 10-17-2013 |
20130249357 | Housing for a Portable Electronic Device - An injection molded housing for a portable electronic device is provided. The housing contains a thermoplastic composition that includes a polyarylene sulfide melt processed in the presence of a disulfide compound and a filler. Without intending to be limited by theory, it is believed that the disulfide can undergo a chain scission reaction with the starting polyarylene sulfide to lower its melt viscosity, which can lead to decreased attrition of the filler and thus improved mechanical properties. Due to this ability to reduce viscosity during melt processing, the present inventors have discovered that relatively high molecular weight polyarylene sulfides can be fed to the extruder with little difficulty. | 09-26-2013 |
20130227800 | Polyarylene Sulfide Fibers Containing an Emulsion Copolymer Coating - A fibrous material that contains polyarylene sulfide fibers coated with an emulsion copolymer is provided. The emulsion copolymer that is coated onto the polyarylene sulfide fibers is crosslinked. For example, the copolymer may contain a reactive co-monomer that acts as a crosslinking agent. Alternatively, a separate crosslinking agent may be combined with the emulsion copolymer. In either case, the resulting copolymer composition is cured after it is applied to the fibers to initiate the formation of crosslink bonds between the emulsion copolymer and create a three-dimensional network that is capable of coating and encapsulating the fibers. Without intending to be limited by theory, it is believed that this three-dimensional network is able to physically entrap disperse dyes when applied to the fibers. | 09-05-2013 |
20130227759 | Fabrics Containing a Blend of Polyarylene Sulfide and Textile Fibers - A fabric that contains a blend of textile and polyarylene sulfide fibers is provided. At least a portion of the textile fibers, polyarylene sulfide fibers, or a combination thereof are coated with an emulsion copolymer that is crosslinked. The copolymer composition is cured after it is applied to the fibers to initiate the formation of crosslink bonds between the emulsion copolymer and create a three-dimensional network that is capable of coating and encapsulating the fibers. It is believed that this three-dimensional network is able to physically entrap disperse additives when applied to the fibers. Still further, the present inventors have discovered that the emulsion copolymer can uniformly coat the fibers and thus readily receive the additive, which eliminates the need for high temperatures and/or pressures during a dyeing process, for example, and can also result in a relatively uniform coating of the additive on the fibers. | 09-05-2013 |
20130220913 | FLUID FILTERS WITH MECHANICALLY COMPACTED FILTER BEDS COMPRISING GRANULAR FILTER MEDIA AND APPARATUSES AND METHODS RELATING THERETO - A fluid filter, with a media body that comprises granular filter media and is capable of transitioning from a compacted state to an expanded state, may allow for multiple filtration cycles with regeneration of the granular filter media via backwashing cycles. Two or more of such filters may also be used in filtration apparatuses that is configured for continuous filtration including during backwashing of one of the filters. | 08-29-2013 |
20130220474 | INSERT FOR PIPE ASSEMBLY AND METHOD FOR FORMING PIPE ASSEMBLY - An insert, a pipe assembly, and a method for forming a pipe assembly are disclosed. The pipe assembly includes a hollow body and an insert bonded to the hollow body. The insert spans a knit line defined in the hollow body. The insert is formed from a fiber reinforced polymer material. The fibers are generally anisotropic, and preferably unidirectional, and the insert is oriented such that the fibers extend at an angle to the knit line and thus span the knit line. Preferably, the fibers extend perpendicularly to the knit line. The use of an insert having such an orientation reinforces the hollow body, particularly at the knit line. Thus, the use of such an insert bonded to a hollow body according to the present disclosure produces a pipe assembly having increased pressure ratings. | 08-29-2013 |
20130180588 | HIGH TO ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE BACKSHEETS FOR PHOTOVOLTAIC DEVICES AND METHODS RELATING THERETO - Generally, solar cell backsheets may include high to ultrahigh molecular weight polyethylene. Advantageously, said backsheets may be single layer structures. Said backsheets may be used in conjunction with photovoltaic devices, photovoltaic modules, photovoltaic arrays, or components thereof. Said backsheets may be formed by methods including compression molding, compression molding then skiving, RAM extrusion, screw extrusion, band sintering, and hybrids thereof. | 07-18-2013 |
20130171430 | Printable Molded Articles Made from a Polyoxymethylene Polymer Composition - Polymer compositions containing a polyoxymethylene polymer are disclosed that are receptive to paints and ink coatings. The polymer composition contains a polyoxymethylene polymer having a relatively high terminal hydroxyl group content in combination with a thermoplastic elastomer. In one embodiment, a coupling agent may be added for coupling the thermoplastic elastomer to the polyoxymethylene polymer. The polymer composition can be molded into various articles and then painted or printed with an ink composition. The polymer composition has been found to dramatically improve adhesion between the molded article and the ink or paint coating. | 07-04-2013 |
20130167404 | Molded Polymer Articles for Use in Low Temperatures Having a Low Rigidity Factor - Ski boots and other cold weather articles are described made from polymer compositions that are exceptionally stable at low temperatures. The polymer composition, for instance, may contain a thermoplastic polymer, a thermoplastic elastomer, and an impact modifier. In one embodiment, each of the individual components are selected such that they do not undergo a second order transition within a temperature range of from about 50° C. to about −40° C., and particularly from about 23° C. to about −40° C. In one embodiment, the polymer compositions are used to mold the outer shell of a snow ski boot. | 07-04-2013 |
20130158212 | Low Temperature Injection Molding of Polyarylene Sulfide Compositions - A method for injection molding a thermoplastic composition that contains a polyarylene sulfide and an aromatic amide oligomer is provided. Due to the improved crystallization properties imparted by the oligomer, the present inventors have discovered that the thermoplastic composition can be molded at lower temperatures to still achieve the same degree of crystallization. In addition to minimizing the energy requirements for the molding operation, such low mold temperatures may be accomplished using heating mediums that are less corrosive and expensive than some conventional techniques. | 06-20-2013 |
20130158184 | Light-Emitting Diode Assembly Housing Comprising Poly(Cyclohexanedimethanol Terephthalate) Compositions - Light-emitting diode assembly housing comprising high temperature poly(1,4-cyclohexanedimethanol terephthalate) compositions containing titanium dioxide. | 06-20-2013 |
20130158179 | Injection Molding of Polyarylene Sulfide Compositions - A method for injection molding a thermoplastic composition that contains a polyarylene sulfide and a boron-containing nucleating agent is provided. By selectively controlling certain aspects of the polyarylene sulfide and nucleating agent, as well as the particular manner in which they are combined, the crystallization properties of the resulting thermoplastic composition can be significantly improved. This allows the “cooling time” during a molding cycle to be substantially reduced while still achieving the same degree of crystallization. The cooling time can be represented by the “normalized cooling ratio”, which is determined by dividing the total cooling time by the average thickness of the molded part. | 06-20-2013 |
20130157033 | Nucleating System for Polyarylene Sulfide Compositions - A nucleating system for a thermoplastic composition that contains a polyarylene sulfide is provided. The nucleating system includes a combination of an inorganic crystalline compound and an aromatic amide oligomer. The present inventors have discovered that the combination of these different types of nucleating agents result in excellent crystallization properties (e.g., rate of crystallization). Due to the improved crystallization rate, the thermoplastic composition can be molded at lower temperatures to still achieve the same degree of crystallization. In addition to minimizing the energy requirements of the molding operating, the use of lower temperatures can also decrease the production of “flash” normally associated with high temperature molding operations. The composition may also possess good viscosity properties that allow it to be readily molded into parts of a variety of different shapes and sizes. | 06-20-2013 |
20130156565 | Boron-Containing Nucleating Agent for Polyphenylene Sulfide - A boron-containing nucleating agent is provided for use with a polyarylene sulfide. The boron-containing nucleating agent can have low crystallinity, a small particle size, and a large specific surface area. By selectively controlling certain aspects of the nucleating agent, the crystallization properties of a thermoplastic composition including the nucleating agent and a polyarylene sulfide can be significantly improved. For instance, the recrystallization temperature can be increased, which can allow the “cooling time” during a molding cycle to be substantially reduced. Through use of the boron-containing nucleating agent the recrystallization temperature can be greater than about 231° C. | 06-20-2013 |
20130155597 | Molded Part for a Portable Electronic Device - A molded part that has a relatively small thickness so that it can be readily employed in portable electronic devices is provided. The molded part is formed from a thermoplastic composition that contains a polyarylene sulfide and an aromatic amide oligomer. Due to the improved crystallization rate, the thermoplastic composition can be molded at lower temperatures to still achieve the same degree of crystallization. In addition to minimizing the energy requirements of the molding operating, the use of lower temperatures can also decrease the production of “flash” normally associated with high temperature molding operations. The composition may also possess good viscosity properties that allow it to be readily molded into parts of a variety of different shapes and sizes. | 06-20-2013 |
20130149521 | Method for Forming Reinfoced Pultruded Profiles - A method and apparatus for forming a profile that contains at least one layer of continuous fibers and at least one layer of discontinuous fibers. Said method allowing the selective control of features to achieve a profile that has increased transverse strength and flexural modulus. The layer of continuous fibers may be formed from one or more continuous fiber reinforced ribbons (“CFRT”) ( | 06-13-2013 |
20130147084 | Impregnation Section and Method for Impregnating Fiber Rovings - An impregnation section of a die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces, at least one of the plurality of contact surfaces defining a cut-away portion downstream in a run direction of the roving of a point-of-contact for the at least one of the plurality of contact surfaces. The at least one of the plurality of contact surfaces further includes an edge defined by the cut-away portion. Excess material build up is reduced by the cut-away portion. | 06-13-2013 |
20130147083 | Impregnation Section of Die for Impregnating Fiber Rovings - A die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section comprising an impregnation zone configured to impregnate the roving with the resin. The die further includes a passage at least partially defined in the impregnation section and in fluid communication with the impregnation zone, and a pump in fluid communication with the passage. The method includes coating at least one fiber roving with a polymer resin, traversing the coated roving through an impregnation zone of an impregnation section to impregnate the roving with the resin, and applying an external pressure to the impregnation zone. | 06-13-2013 |
20130147082 | Die and Method for Impregnating Fiber Rovings - A die and method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces. At least one of the plurality of contact surfaces is configured such that a normal force of the roving is less than or equal to a lift force of the resin at an impregnation location on the contact surface during impregnation of the roving with the resin by the contact surface. | 06-13-2013 |
20130145986 | Impregnation Section of Die for Impregnating Fiber Rovings - An impregnation plate and an impregnation section of a die for impregnating at least one fiber roving with a polymer resin are disclosed. The impregnation plate includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes an inner surface. The impregnation plate further includes a sidewall. The sidewall includes an inner surface. The inner surface of the sidewall includes a plurality of peaks and a plurality of valleys. At least one of the plurality of valleys defines a maximum height that is less than a height of the inner surface of the impregnation zone at a neighboring location along a run direction of the roving. | 06-13-2013 |
20130136891 | Structural Member Formed From A Solid Lineal Profile - A structural member that contains a solid lineal profile ( | 05-30-2013 |
20130136890 | Thermoplastic Prepreg Containing Continuous and Long Fibers - A prepreg that contains a plurality of unidirectionally aligned continuous fibers embedded within a thermoplastic polymer matrix is provided. In addition to continuous fibers, the prepreg also contains a plurality of long fibers that are combined with the continuous fibers so that they are randomly distributed within the thermoplastic matrix. As a result, at least a portion of the long fibers become oriented at an angle (e.g., perpendicular) relative to the direction of the continuous fibers. Through such orientation, the long fibers can substantially increase the mechanical properties of the prepreg in the transverse direction (e.g., strength) and thus achieve a more isotropic material. Although unique isotropic prepregs are one aspect of the present invention, it should be understood that this is not a requirement. In fact, one notable feature of the present invention is the ability to tailor the mechanical properties of the prepreg for an intended application by selectively controlling certain process parameters, such as the type of long fibers employed, the type of continuous fibers employed, the concentration of the long fibers, the concentration of the continuous fibers, the thermoplastic resin(s) employed, etc. | 05-30-2013 |
20130136877 | REINFORCED HOLLOW PROFILES - A hollow lineal profile ( | 05-30-2013 |
20130123424 | System and Process For Molding Polymeric Articles While Reducing Gate Blush - A system and process for injection molding polymer articles is described. The system and process are designed to reduce gate blush. In one embodiment, an injection molding device injects a molten polymer composition into a runner that extends from an injection point to a gate. The gate is positioned adjacent to an opening leading into a mold cavity. In accordance with the present disclosure, the system includes one or more overflow passages that divert flow of the polymer composition so as to temporarily reduce the flow rate and pressure of the polymer composition entering the mold. | 05-16-2013 |
20130123420 | Liquid Crystalline Polymer Composition for High Voltage Electronic Components - A liquid crystalline polymer composition having a relatively high comparative tracking index (“CTI”) is provided. The present inventors have discovered that high CTI values can be achieved through the use of inorganic particles in combination with a functional aromatic compound. While not fully understood, it is believed that the functional compound can react with the liquid crystalline polymer and create smaller degraded polymer chains. In combination with the inorganic particles, these smaller chains can potentially form insulated regions at the surface of the polymer that hinder the formation of conductive carbonaceous deposits during the tracking process, which could otherwise lead to failure during testing. | 05-16-2013 |
20130122758 | Fine Pitch Electrical Connector and a Thermoplastic Composition for Use Therein - A thermoplastic composition for use in a fine pitch electrical connector is provided. The thermoplastic composition contains a liquid crystalline polymer and a plurality of fibers. The volume average length of the fibers in the thermoplastic composition is selectively controlled according to the present invention so that it is within a certain range, such as from about 80 to about 250 micrometers. The fibers also have a narrow length distribution. That is, at least about 70% by volume of the fibers have a length within a certain range. Through the use of a liquid crystalline polymer and fibers of a certain weight average length and narrow length distribution, the present inventors have discovered that the resulting thermoplastic composition is able to achieve a desirable combination of strength and flowability, which enables it to be uniquely suited for the walls of a fine pitch connector. | 05-16-2013 |
20130122274 | Low Naphthenic Liquid Crystalline Polymer Composition for Use in Molded Parts with a Small Dimensional Tolerance - A thermoplastic composition that comprises a low-naphthenic, thermotropic liquid crystalline polymer blended with a combination of flow modifiers is provided. More particularly, one of the flow modifiers is a hydroxy-functional compound that contains or more hydroxyl functional groups. Without intending to be limited by theory, it is believed that the hydroxyl functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. Aromatic dicarboxylic acids are also employed as a flow modifier in the thermoplastic composition. Again, without intending to be limited by theory, it is believed that such acids can combine smaller chains of the polymer together after they have been cut by hydroxy-functional compounds. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. | 05-16-2013 |
20130122273 | Low Naphthenic Liquid Crystalline Polymer Composition - A thermoplastic composition that comprises a low-naphthenic, thermotropic liquid crystalline polymer blended with a flow modifier is provided. The flow modifier is an aromatic carboxylic acid that contains one or more carboxyl functional groups. Without intending to be limited by theory, it is believed that the functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. It is also believed that such acids can combine smaller chains of the polymer together after they have been cut during processing. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. As a result of the present invention, the melt viscosity of the thermoplastic composition is generally low enough so that it can readily flow into the cavity of a mold having small dimensions. | 05-16-2013 |
20130122272 | Naphthenic-Rich Liquid Crystalline Polymer Composition with Improved Flammability Performance - A thermoplastic composition that comprises a naphthenic-rich, thermotropic liquid crystalline polymer blended with a flow modifier is provided. The flow modifier is an aromatic carboxylic acid that contains or more carboxyl functional groups. Without intending to be limited by theory, it is believed that the functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. It is also believed that such acids can combine smaller chains of the polymer together after they have been cut during processing. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. As a result of the present invention, the melt viscosity of the thermoplastic composition is generally low enough so that it can readily flow into the cavity of a mold having small dimensions. | 05-16-2013 |
20130121682 | Compact Camera Module - A thermoplastic composition for use in a compact camera module is provided. The thermoplastic composition contains a liquid crystalline polymer and a plurality of fibers. The volume average length of the fibers in the thermoplastic composition is selectively controlled according to the present invention so that it is within a certain range, such as from about 80 to about 250 micrometers. The fibers also have a narrow length distribution. That is, at least about 70% by volume of the fibers have a length within a certain range. Through the use of a liquid crystalline polymer and fibers of a certain weight average length and narrow length distribution, the present inventors have discovered that the resulting thermoplastic composition is able to achieve a desirable combination of strength and surface smoothness, which enables it to be uniquely suited for a compact camera module. | 05-16-2013 |
20130119317 | Method for Forming a Liquid Crystalline Thermoplastic Composition - A method for forming a liquid crystalline thermoplastic composition is provided. The method comprises blending at least one thermotropic liquid crystalline polymer and a plurality of fibers within an extruder. The extruder contains at least one rotatable screw received within a barrel (e.g., cylindrical barrel) and defines a feed section and a melting section located downstream from the feed section along the length of the screw. Relatively long fibers are initially supplied to the feed section of the extruder, but at a location downstream from the liquid crystalline polymer so that the polymer is still in a solid state when it initially contacts the fibers. In this manner, the present inventors have discovered that the polymer can act as an abrasive agent for reducing the length of the fibers. | 05-16-2013 |
20130106659 | Thermoplastic Composition for Use in Forming a Laser Direct Structured Substrate | 05-02-2013 |
20130096887 | Polymer Spring and Method for Designing Same - Polymer springs are described having a closed cell geometry. The polymer springs are well adapted for replacing metal springs in various applications, such as in seat cushions. In one embodiment, the polymer springs include columns of closed cells, in which each cell has a curvilinear shape. A method for designing polymer springs is also described. | 04-18-2013 |
20130085253 | Solid-Stage Polymerization System for a Liquid Crystalline Polymer - A multi-stage process for forming a liquid crystalline polymer is provided. More particularly, the process includes acetylating one or more precursor monomers and melt-polymerizing the acetylated monomers to form a prepolymer in the form of a solid particulate material. Thereafter, the prepolymer is solid-state polymerized in a fluidized bed reactor that contains a porous surface (e.g., bed, plate, grate, etc.) on which the prepolymer is supported. While supported by this porous surface, the prepolymer can become “fluidized” with a heated stream of a gas (e.g., nitrogen). In this manner, a sufficient degree of turbulence is created to distribute heat evenly around the prepolymer and cause it to rapidly reach the target reaction temperature. | 04-04-2013 |
20130085214 | Polymer Composition For Producing Articles Having a Metallic Appearance - A polymer composition containing a polyacetal resin, a metallic pigment, and an ultraviolet light stabilizer is disclosed that exhibits a metallic brilliant appearance. The metallic pigment, the ultraviolet light stabilizer and the polyacetal resin can be mixed in a high intensity mixer prior to being used to mold polymer articles. | 04-04-2013 |
20130084415 | Electrical Conduit Containing a Fire-Resisting Thermoplastic Composition - An electrical conduit that contains a jacket that defines a hollow passageway is provided. At least a portion of the jacket is formed from a thermoplastic composition that contains a polyarylene sulfide and fire-resisting system. Due in part to the specific nature and concentration of these components, the present inventors have discovered that the resulting thermoplastic composition may have a relatively high melting temperature, such as from about 200° C. to about 500° C. | 04-04-2013 |
20130082064 | Polyoxymethylene Compositions For Producing Containment Devices - Polyoxymethylene polymer compositions are disclosed that contain an impact modifier. In accordance with the present disclosure, the impact modifier is attached to the polyoxymethylene polymer and comprises a thermoplastic elastomer containing carbonate groups, such as polycarbonate groups. In one embodiment, a coupling agent bonds the impact modifier to the polyoxymethylene polymer. Incorporation of an impact modifier containing carbonate groups has been found to produce articles having good impact resistance properties while also preserving the permeability of the material. The polymer composition is well suited to producing containment devices, especially fuel tanks. | 04-04-2013 |
20130081850 | Fire-Resisting Thermoplastic Composition for Plenum Raceways and Other Conduits - A conduit that contains an elongate member that defines a hollow passageway is provided. The conduit may be used to convey electricity (e.g., jacket of a communication cable, raceway for protecting a communication cable, etc.), fluids (e.g., pipes), etc. In one embodiment, for example, the conduit may be a raceway for use in a plenum of a building structure. Regardless of the type of conduit, at least a portion of the elongate member is formed from a thermoplastic composition that contains a polyarylene sulfide and fire-resisting system. Due in part to the specific nature and concentration of these components, the present inventors have discovered that the resulting thermoplastic composition may have a relatively high melting temperature. | 04-04-2013 |
20130078481 | Metal Plating Polyacetal Compositions - Metal coated molded polymer articles are described made from a polyoxymethylene polymer. In accordance with the present disclosure, the molded articles are produced from a polymer composition containing a functionalized polyoxymethylene polymer combined with a metal pigment. The functionalized polyoxymethylene polymer may comprise a polyoxymethylene polymer that has a significant amount of hydroxyl groups present in the terminal positions. The terminal positions can be on the end of the polymer chain or on the side of the polymer chain. In one embodiment, the metal coating is applied to the molded article using an electrolytic plating process. Electrolytic coatings applied to substrates made in accordance with the present disclosure have displayed excellent peel strengths. | 03-28-2013 |
20130072630 | Low Chlorine Fiber Filled Melt Processed Polyarylene Sulfide Composition - Melt processed polyarylene sulfide compositions are described as are methods of forming the melt processed polyarylene sulfide compositions. The melt processed polyarylene sulfide compositions are formed according to a melt processing method that includes melt processing a mixture that includes a starting polyarylene sulfide, a disulfide compound and a filler. The melt processed polyarylene sulfide compositions may provide low chlorine content products having excellent strength characteristics. | 03-21-2013 |
20130072629 | Low Halogen Content Disulfide Washed Polyarylene Sulfide - Methods for forming a low chlorine content washed polyarylene sulfide are described. Methods include washing a polyarylene sulfide that includes aryl halide endgroups with a solution that includes a disulfide compound. The solution can also include a catalyst and an organic solvent. During the disulfide wash, a nucleophilic substitution reaction occurs between the disulfide compound and aryl halides endgroups of the polyarylene sulfide. The nucleophilic substitution reaction is carried out at conditions to prevent chain scission of the polyarylene sulfide that includes the aryl halide endgroups. Compositions and products formed with the low chlorine content disulfide washed polyarylene sulfide are also described. | 03-21-2013 |
20130071638 | Overmolded Composite Structure for an Electronic Device - An overmolded composite structure that contains a metal component and a resinous component adhered to a surface thereof is provided. The resinous component is formed from a thermoplastic composition that contains at least one polyarylene sulfide and at least one mineral filler. The present inventors have discovered that the nature and relative concentration of the polyarylene sulfides, mineral fillers, and/or other materials in the thermoplastic composition can be selectively tailored so that the resulting resinous component has a coefficient of linear thermal expansion and/or color that is similar to the metal component. | 03-21-2013 |
20130069001 | Polyarylene Sulfide/Liquid Crystal Polymer Alloy and Compositions Including Same - Polyarylene sulfide/liquid crystal polymer alloys are described as are methods of forming the polyarylene sulfide/liquid crystal polymer alloys. The polyarylene sulfide/liquid crystal polymer alloys are formed according to a melt processing method that includes melt processing a polyarylene sulfide with a reactively functionalized disulfide compound and a liquid crystal polymer in a one or two step process. The reactively functionalized disulfide compound is added in a stoichiometric amount to react with a portion of the polyarylene sulfide. The melt processing forms a polyarylene sulfide/liquid crystal polymer copolymer that is a compatibilizer in the alloy. The polyarylene sulfide/liquid crystal polymer alloys may provide low chlorine content products having excellent strength characteristics. | 03-21-2013 |
20130062558 | Cast Molded Parts Formed from a Liquid Crystalline Polymer - A molded part having a predetermined shape is provided. The molded part may be formed by casting a liquid crystalline polymer composition into a mold cavity at a relatively low shear rate. Due to the use of a relatively low shear rate, the polymer composition does not generally undergo extensive shear orientation, which can allow the resulting part to be further processed using standard finishing techniques. The ability to use relatively low shear rates during casting is achieved in the present invention through the use of an aromatic amide oligomer. More particularly, the present inventors have discovered that the aromatic amide oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix to “ultralow” levels without having a significant impact on the mechanical properties. | 03-14-2013 |
20130053533 | Solid-State Polymerization of a Liquid Crystalline Polymer - A method for forming a high molecular weight thermotropic liquid crystalline polymer is provided. The method includes melt polymerizing two or more monomers in the presence of a unique aromatic amide oligomer to form a prepolymer, and then solid-state polymerizing the prepolymer to achieve a target molecular weight. The present inventors have discovered that a unique aromatic amide oligomer can be employed to help increase the “low shear” complex viscosity of the resulting solid-state polymerized composition. This allows for the attainment of higher than conventional “low shear” complex viscosity values and/or a substantial reduction in the solid-state polymerization time needed to achieve a target complex viscosity. In addition, the oligomeric flow aid can also accelerate the extent to which the “high shear” melt viscosity is increased during solid-state polymerization, which may also contribute to a substantial reduction in the solid-state polymerization time needed to achieve a certain molecular weight. | 02-28-2013 |
20130053532 | Melt Polymerization of Low Melt Viscosity Liquid Crystalline Polymers - A method for forming a high molecular weight liquid crystalline polymer is provided. The method include melt polymerizing two or more precursor monomers (e.g., acetylated or non-acetylated) in the presence of an aromatic amide oligomer. The present inventors have discovered that such an oligomer can lower the melt viscosity of the viscous polymer as it is formed. The ability to lower melt viscosity in situ during melt polymerization enables the formation of high molecular weight polymers that display low melt viscosity and can still be removed from the reactor vessel without solidifying therein. This not only improves the ease of processing, but also allows molecular weights to be reached that are even higher than conventionally practical. | 02-28-2013 |
20130053531 | Method for Minimizing Process Disruptions During Formation of a Liquid Crystalline Polymer - A method for lowering melt viscosity of a liquid crystalline polymer as it is formed in a reactor vessel. More particularly, a reaction mixture is initially supplied to the reactor vessel that contains two or more precursor monomers (e.g., acetylated or non-acetylated). The reaction mixture is heated to an elevated temperature under agitation to initiate formation of the polymer. After a certain period of time, an aromatic amide oligomer is added to the reaction mixture. Among other things, the present inventors have discovered that such an oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. This minimizes the likelihood of “freeze off” of the polymer within the reactor vessel and limits the impact of process disruptions on the production of the liquid crystalline polymer. | 02-28-2013 |
20130052446 | Melt-Extruded Substrate for Use in Thermoformed Articles - A melt-extruded substrate that can be readily thermoformed into a shaped, three-dimensional article is provided. The substrate is formed from a polymer composition that contains a thermotropic liquid crystalline polymer and a unique aromatic amide oligomer. The present inventors have discovered that the oligomer can help increase the “low shear” complex viscosity of the resulting polymer. The ability to achieve enhanced low shear viscosity values can lead to polymer compositions with an increased melt strength, which allows the resulting substrate to better maintain its shape during thermoforming without exhibiting a substantial amount of sag. Due to its relatively high degree of melt strength, the polymer composition is particularly well suited for forming thin extruded substrates for use in thermoforming processes. | 02-28-2013 |
20130048908 | Heat-Resistant Liquid Crystalline Polymer Composition having a Low Melting Temperature - A thermotropic liquid crystalline polymer composition capable of exhibiting both a low melting temperature and good heat resistance without the use of conventional naphthenic acids is provided. The melting temperature may, for example, range from about 250° C. to about 400° C. Even at such low melting temperatures, the present inventors have surprisingly discovered that the ratio of the deflection temperature under load (“DTUL”), a measure of short term heat resistance, to the melting temperature may remain relatively high. The specific DTUL values may range from about 200° C. to about 300° C. The ability to form a polymer composition with the properties noted above may be achieved, at least in part, by the use of an aromatic amide oligomer. | 02-28-2013 |
20130046040 | POLYETHYLENE POWDERS AND POROUS ARTICLES PRODUCED THEREFROM - A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D | 02-21-2013 |
20130018170 | Process for Producing Oxymethylene Polymers - The present invention relates to a process for the preparation of oxymethylene polymers, the oxymethylene polymers obtained therefrom as well as their use. | 01-17-2013 |
20120321804 | Die and Method for Impregnating Fiber Rovings - A die and method for impregnating at least one fiber roving with a polymer resin are disclosed. In one embodiment, the die includes an impregnation section including an impregnation zone configured to impregnate the roving with the resin, the impregnation zone including a plurality of contact surfaces. The die further includes a perturbation positioned on at least one of the plurality of contact surfaces, the perturbation configured to interact with the roving. In one embodiment, the method includes coating a fiber roving with a polymer resin. The method further includes traversing the coated roving through an impregnation zone to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces. The method further includes interacting the coated roving with a perturbation positioned on at least one of the plurality of contact surfaces. | 12-20-2012 |
20120277353 | POLYACETAL COMPOSTIIONS AND MOLDED PRODUCTS MADE THEREFROM - A polymeric composition containing a polyacetal resin in conjunction with a blend of metal salts for reducing formaldehyde emissions. In one embodiment, the blend of metal salts comprises a metal salt of a fatty acid blended with a metal salt of a polycarboxylic acid. The metal salt of the fatty acid may comprise calcium propionate, while the metal salt of the polycarboxylic acid may comprise calcium citrate. The metal salts have been found to reduce formaldehyde emissions, especially when the composition contains a low gloss additive, such as acrylic polymer particles. | 11-01-2012 |
20120273988 | Impregnation Section with Upstream Surface and Method for Impregnating Fiber Rovings - An impregnation section of a die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin and a gate passage in fluid communication with the impregnation zone for flowing the resin therethrough such that the resin coats the roving. Additionally, the impregnation section includes a surface disposed upstream of the impregnation zone in a run direction of the roving for contacting the roving. The method includes traversing at least one fiber roving over a surface, flowing a polymer resin through a gap, the gap being in the range between approximately 0.1 millimeters and approximately 4 millimeters, coating the roving with the resin, and traversing the coated roving through an impregnation zone to impregnate the roving with the resin. | 11-01-2012 |
20120264868 | Reflectors for Light-Emitting Diode Assemblies Containing a White Pigment - Polymer compositions are described containing a white pigment for increasing the reflectance properties of the resulting material. In this regard, the material is well suited for being used as a reflector, such as a reflector for light-emitting diode assemblies. In accordance with the present disclosure, the white pigment comprises chalk resistance particles. The particles can also display a basic pH when placed in distilled water. | 10-18-2012 |
20120262927 | MOLDED REFLECTORS FOR LIGHT-EMITTING DIODE ASSEMBLIES - Polymer compositions are described containing a poly(1,4-cyclohexanedimethanol terephthalate) polymer in combination with a white pigment and optionally one or more reinforcing fillers. In accordance with the present disclosure, the composition also contains one or more reactive viscosity stabilizers. In order to prevent against yellowing, the composition is free of various aromatic epoxy resins, such as novolac epoxy resins. The polymer composition has excellent reflectance properties making the composition well suited for producing reflectors for light sources, such as LED assemblies. | 10-18-2012 |
20120262925 | MOLDED REFLECTIVE STRUCTURES FOR LIGHT-EMITTING DIODES - The present disclosure is directed to a molded reflective structure for a light source, which may be a light-emitting diode (“LED”). The structure includes a reflector which defines a cavity therein. The cavity is surrounded by at least one reflective side wall, and has a greatest dimension of less than about 50 mm. The at least one reflective side wall further has an initial reflectance at 460 nm of greater than about 85% and an initial whiteness index of greater than about 80. The reflector is made from a thermoplastic polymer composition that contains a material such that the at least one reflective side wall absorbs light in the ultraviolet and violet region of the electromagnetic spectrum and re-emits light in the blue region. | 10-18-2012 |
20120259059 | Molded Articles Having A Swirl-Like or Marble-Like Appearance and Compositions For Producing Same - Polymer compositions are described that contain at least two different immiscible phases for producing molded articles having a swirl-like or marble-like appearance. The first phase, for instance, may contain one or more polyoxymethylene polymers. The second phase, on the other hand, contains one or more polymers that together have a melting point that is from about 5° to about 30° different than the melting point of the polyoxymethylene polymer. In one embodiment, the second phase may contain a thermoplastic elastomer, a glycol-modified polyethylene terephthalate, or a polyamide and may have a melting point that is higher than the melting point of the polyoxymethylene polymer. The second phase is present in the polymer composition in relatively low amounts, such as in amounts less than about 5% by weight. The second phase can contain a high concentration of colorants that creates a contrast of colors when the molded article is produced. | 10-11-2012 |
20120217038 | Polyether Ether Ketone/Polyphenylene Sulfide Blend - The present description discloses a polymeric composition which is a melt-processed alloy comprised of (a) a polyarylene sulfide resin, (b) a polyaryl-ether-ketone resin, and a reactive compound which results in (c) a graft copolymer of the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin in addition to the starting resins. Exemplary melt-processed polymeric compositions can be made by reacting an alkoxy silane with the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin to produce a graft copolymer of a portion of one or both of the resins, sufficient to render the composition uniform and homogeneous. It is normally preferred for the exemplary organosilane compound, to be an amino silane. The subject invention further reveals an insulated wire comprising (1) an electrical conductor and (2) a layer of the melt-processed alloy composition; and fiber reinforced composites comprising fibers substantially fully impregnated with the alloy polymeric composition. | 08-30-2012 |
20120193827 | Microporous Film - A microporous film is described made from a polyacetal polymer. in one embodiment, the microporous film is formed from a composition comprising a polyacetal copolymer combined with an inorganic filler and a plasticizer. The polymer composition is extruded or molded into a sheet. The sheet is then passed through an extraction medium in order to remove a portion of the plasticizer. The extraction medium is then removed from the sheet. | 08-02-2012 |
20120157576 | Polyoxymethylene Fibers in Concrete - Disclosed are polymeric additives for concrete formed of a polyoxymethylene (POM) copolymer. POM copolymers can be utilized to form fibrous additives for concrete, i.e., microfibers and/or macrofibers. The POM copolymers can include one or more chemical groups, e.g., end groups and/or pendant groups that can increase the polarity of the POM and increase the hydrophilicity of the formed fibers, which can improve miscibility of the fibers in wet concrete. Chemical groups of the POM copolymers can bond with components of the concrete or can hydrolyze to form groups that can bond with components of the concrete, e.g., form covalent or noncovalent (e.g., electrostatic or ionic) bonds with one or more components of the concrete binder. | 06-21-2012 |
20120091013 | VOC or Compressed Gas Containment Device Made From A Polyoxymethylene Polymer - VOC or compressed gas containment devices, such as polymer fuel tanks, are made from a polyoxymethylene polymer composition. The polymer composition contains a polyoxymethylene polymer that is directly or indirectly chemically attached to an impact modifier. In one embodiment, for instance, a coupling agent bonds the impact modifier to the polyoxymethylene polymer. In order to preserve the permeability of the polymer material when combined with the impact modifier, a polyoxymethylene polymer is used that contains a low level of low molecular weight constituents. | 04-19-2012 |
20120082811 | Fluid-Assisted Injection Molded Articles and Process - Fluid-assisted injection molding articles and processes for producing the articles are described. In one embodiment, a fluid-assisted injection molded article is formed from a polymeric composition containing a polyethylene terephthalate homopolymer in combination with a polyethylene terephthalate copolymer. The polyethylene terephthalate copolymer may comprise a copolymer of polyethylene terephthalate with isophthalic acid. The polymeric composition can also contain a reinforcing agent, such as glass fibers. Products made in accordance with the present disclosure have shown dramatically improved surface characteristics. In particular, pitting on the surface of the molded article is minimized. | 04-05-2012 |
20110305860 | Blow Molded Articles and Process For Making Same - Blow molded articles are made from a polymeric composition containing a polyphenylene sulfide resin. The composition can further contain a reinforcing agent, such as glass fibers, and a combination of an organosilane coupling agent and an impact modifier. It was discovered that the combination of the aminosilane coupling agent and the impact modifier substantially increased the low shear viscosity and melt strength of the composition without increasing the high shear viscosity of the composition. The increase in the low shear viscosity makes the composition particularly well suited to molding articles with a complex shape. When producing blow molded articles, for instance, the composition provides better control over wall thickness while having improved interior surface smoothness at higher throughput and extrusion rates. | 12-15-2011 |
20110228808 | SYSTEM AND METHOD FOR COLLECTING AND ANALYZING THE MEASUREMENTS AND OBSERVATIONS REQUIRED DURING FLAMMABILITY TESTING - A system and method are disclosed for collecting and analyzing the measurements and observations required during flammability testing of materials. The system may include one or more input devices for electronically providing one or more timing signals related to a timing sequence of a specified flammability test and one or more attribute signals related to selected attributes of a test specimen. Additionally, a timing device may be coupled to the one or more input devices. The timing device may be configured to perform one or more time interval measurements based on the one or more timing signals. Further, a computing device may be coupled to the timing device. The computing device may be configured to analyze the one or more time interval measurements and the one or more attribute signals to determine a flammability classification for the test specimen in accordance with the specified flammability test. | 09-22-2011 |
20110034610 | Low Formaldehyde Emission Polyacetal Composition - A polymeric composition containing a polyacetal resin in conjunction with a formaldehyde inhibiting agent is described. The formaldehyde inhibiting agent comprises an aluminum pigment. The aluminum pigment may comprise elemental aluminum, such as aluminum flakes that cannot only drastically reduce formaldehyde emissions from the composition but can also give the composition a metallic appearance. In one embodiment, the aluminum pigment may be combined with the polyacetal resin in conjunction with an unhindered phenol and/or a polyethylene resin. In order to further reduce formaldehyde emissions, in one embodiment, a formaldehyde scavenger comprising a nitrogen containing compound can also be added. | 02-10-2011 |
20080300355 | Process For Forming Improved Fiber Reinforced Composites and Composites Therefrom - The present disclosure relates to long-fiber-reinforced two-phase incompatible matrix-fiber composites which include fibers wetted completely by an incompatible mixture of thermoplastic materials. The resin mixture generally includes a polyester oligomer/polymer combination and a high polymer thermoplastic resin. The composites of the disclosure exhibit a reduced level of fiber attrition after melt-processing into articles, and show substantial improvements in mechanical properties. | 12-04-2008 |
20080258337 | Polyether Ether Ketone/Polyphenylene Sulfide Blend - The present description discloses a polymeric composition which is a melt-processed alloy comprised of (a) a polyarylene sulfide resin, (b) a polyaryl-ether-ketone resin, and a reactive compound which results in (c) a graft copolymer of the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin in addition to the starting resins. Exemplary melt-processed polymeric compositions can be made by reacting an alkoxy silane with the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin to produce a graft copolymer of a portion of one or both of the resins, sufficient to render the composition uniform and homogeneous. It is normally preferred for the exemplary organosilane compound, to be an amino silane. The subject invention further reveals an insulated wire comprising (1) an electrical conductor and (2) a layer of the melt-processed alloy composition; and fiber reinforced composites comprising fibers substantially fully impregnated with the alloy polymeric composition. | 10-23-2008 |