发明名称 |
CURABLE LAMINATED ARTICLE OF EPDM ELASTOMER AND ETHYLENE-CONTAINING POLYMER |
摘要 |
<p>A curable laminated article, useful for roofing application, comprising at least two layers, each layer comprising a blend of (a) 50-80% by weight of an ethylene/propylene/nonconjugated diene elastomer and (b) 20-50% by weight of an ethylene-containing polymer selected from the group consisting of polyethylene, an ethylene alpha-monoolefin copolymer wherein the monoolefin contains from 3-12 carbon atoms and is present in amounts of 2-8% by weight, and as ethylene/vinyl acetate copolymer having a vinyl acetate content up to about 10% by weight, and wherein each alternate layer contains either elemental sulfur as the crosslinking agent for the elastomer or a cure accelerator so that the elastomer in the laminated article subsequently cures when elemental sulfur and the accelerator in each layer migrate to an adjacent layer when the laminate is exposed to elevated temperatures.</p> |
申请公布号 |
EP0445807(A3) |
申请公布日期 |
1992.02.26 |
申请号 |
EP19910103483 |
申请日期 |
1991.03.07 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SCHOENBECK, MELVIN ALBERT |
分类号 |
B32B25/04;B32B27/18;B32B27/26;B32B27/32;C08L23/16;E04D5/06;E04D5/10;(IPC1-7):B32B27/26 |
主分类号 |
B32B25/04 |
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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