发明名称 |
Dynamically cured thermoplastic olefin polymers |
摘要 |
Thermoplastic compositions of matter useful as gasketing materials as well as flexible boots and seals which are soft, have low compression set and high tensile. The compositions comprise a polyolefin resin and at least two different rubbers, one of which is vulcanized to a fully cured state by a cure system which leaves the other rubber(s) unvulcanized. The preferred embodiment comprises a blend of polypropylene and ethylene vinylacetate as the polyolefin resin component, EPDM as the uncured rubber component and a ZnO cured halogenated butyl rubber. In another embodiment of the invention, the resin is excluded and the uncured rubber is a high crystallinity EPDM.
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申请公布号 |
US4845145(A) |
申请公布日期 |
1989.07.04 |
申请号 |
US19860874702 |
申请日期 |
1986.06.16 |
申请人 |
EXXON RESEARCH & ENGINEERING COMPANY |
发明人 |
HAZELTON, DONALD R.;PUYDAK, ROBERT C.;BOOTH, D. A. |
分类号 |
C08L23/00;C08J3/20;C08J3/24;C08K3/22;C08L1/00;C08L7/00;C08L21/00;C08L23/02;C08L23/16;C08L23/26;C08L23/28;C08L27/00;C08L33/00;C08L33/02;C08L51/00;C08L51/02;C08L77/00;C08L101/00 |
主分类号 |
C08L23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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