Multicomponent Fiber Containing a Polyarylene Sulfide
First Claim
1. A multicomponent fiber that comprises a sheath component that substantially surrounds a core component, wherein one of the core component and the sheath component is formed from a polyarylene sulfide composition that comprises a functionalized polyarylene sulfide, and wherein the other of the sheath component and the core component is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide.
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Accused Products
Abstract
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.
3 Citations
22 Claims
- 1. A multicomponent fiber that comprises a sheath component that substantially surrounds a core component, wherein one of the core component and the sheath component is formed from a polyarylene sulfide composition that comprises a functionalized polyarylene sulfide, and wherein the other of the sheath component and the core component is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide.
Specification