Abstract:
Components for automobiles 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 automotive 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.
Abstract:
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.
Abstract:
Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body formed from a polymer 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 unbonded from 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.
Abstract:
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.
Abstract:
Polyarylene sulfide compositions are described that exhibit high strength and flexibility. Methods for forming the polyarylene sulfide compositions 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 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.
Abstract:
A thermoplastic composition that contains a unique combination of a thermotropic liquid crystalline polymer, dielectric material, laser activatable additive, and a fibrous filler is provided. The nature of the components and/or their concentration are selectively controlled in the present invention to maintain a high dielectric constant, good mechanical properties (e.g., deflection under load), and good processibility (e.g., low viscosity), yet still be laser activatable. Thus, the thermoplastic composition can be readily shaped into a thin substrate and subsequently applied with one or more conductive elements using a laser direct structuring process ("LDS").
Abstract:
Polyarylene sulfide compositions are described as are methods of forming the polyarylene sulfide compositions. The polyarylene sulfide compositions are formed by melt processing polyarylene sulfide, a silane coupling agent and a silicone elastomer. The silane coupling agent is, e.g., an amino silane coupling agent and the silicone elastomer can be a poly(dimethyl siloxane). The compositions exhibit good strength and heat resistance characteristics and can be utilized in forming a variety of products such as pipes and houses, automotive components and electrical components.
Abstract:
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.
Abstract:
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.
Abstract:
Polyarylene sulfide compositions are described as are methods of forming the polyarylene sulfide compositions. The polyarylene sulfide compositions are formed by melt processing polyarylene sulfide, a reactively functionalized siloxane polymer and a non-aromatic impact modifier. The non-aromatic impact modifier is, e.g., an ethylene-based copolymer or terpolymer or a silicone elastomer. The compositions exhibit good strength and heat resistance characteristics and can be utilized in forming a variety of products such as automotive components and electrical components.