发明名称 |
IMPROVEMENTS IN POLYPROPYLENE/FIBER COMPOSITES |
摘要 |
In one embodiment of the present invention a composite is provided having improved toughness without reduction in stiffness comprising a polymer matrix having fibers embedded therein wherein the polymer of the matrix is substantially beta polypropylene or a beta polypropylene-olefin copolymer. Another embodiment of the present invention comprises a method of forming the novel composite by combining a nucleating agent with a polymer composition selected from the group consisting of alpha polypropylene, an alpha polypropylene-olefin copolymer, alpha polypropylene containing fibers therein and an alpha polypropylene-olefin copolymer having fibers therein, and when the polymer is polypropylene or polypropylene-olefin copolymer, also independently adding fiber to the polymer or copolymer and thereafter inducing nucleation whereby a composite of improved stiffness with no reduction in toughness is formed.
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申请公布号 |
WO9716486(A1) |
申请公布日期 |
1997.05.09 |
申请号 |
WO1996US17337 |
申请日期 |
1996.10.31 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
LUSTIGER, ARNOLD;MARZINSKY, CARY, NEIL;DEVOREST, YANN |
分类号 |
C08K5/3437;C08K7/02;(IPC1-7):C08L23/10;B29C70/06 |
主分类号 |
C08K5/3437 |
代理机构 |
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地址 |
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