发明授权
US4487891A Thermoplastic polymer blend composition and membrane formed therefrom
失效
热塑性聚合物共混组合物和由其形成的膜
- 专利标题： Thermoplastic polymer blend composition and membrane formed therefrom
- 专利标题（中）： 热塑性聚合物共混组合物和由其形成的膜
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申请号： US577640申请日： 1984-02-06
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公开(公告)号： US4487891A公开(公告)日： 1984-12-11
- 发明人: Kim L. Walton , Paul A. Pezzoli
- 申请人： Kim L. Walton , Paul A. Pezzoli
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C08L23/08
- IPC分类号： C08L23/08 ; C08L1/00 ; C08L23/00 ; C08L23/26 ; C08L23/28 ; C08L27/00 ; C08L101/00 ; C08L31/04
摘要：
A blend of chlorinated polyethylene with two or more different ethylene/vinyl acetate copolymers is provided. The blend produces a membrane which is suitable for use in single-ply roofing applications. One ethylene/vinyl acetate copolymer has a polymerized vinyl acetate content of from about 38 to about 60 percent by weight of copolymer. A second ethylene/vinyl acetate copolymer has a polymerized vinyl acetate content of from about 13 to about 27 percent of weight of copolymer.
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