发明授权
US4900783A Acetal copolymers with backbone double bonds and graft copolymers thereof
失效
具有骨架双键的乙缩醛共聚物及其接枝共聚物
- 专利标题： Acetal copolymers with backbone double bonds and graft copolymers thereof
- 专利标题（中）： 具有骨架双键的乙缩醛共聚物及其接枝共聚物
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申请号： US181047申请日： 1988-04-13
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公开(公告)号： US4900783A公开(公告)日： 1990-02-13
- 发明人: Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
- 申请人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
- 申请人地址： NJ Chatham
- 专利权人： Hoechst Celanese Corporation
- 当前专利权人： Hoechst Celanese Corporation
- 当前专利权人地址： NJ Chatham
- 主分类号： C08G65/16
- IPC分类号： C08G65/16 ; C07D321/04 ; C08F283/06 ; C08G2/10 ; C08G2/18 ; C08G4/00 ; C08G65/06 ; C08G65/26
摘要：
Acetal copolymers of trioxane and 1,3-dioxep-5-ene having a high degree of crystallinity and specific mole percent incorporations of 1,3-dioxep-5-ene are synthesized.The invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1,3-dioxep-5-ene and precipitating the copolymer product from solution.The copolymers show much improved stability against halogen degradation.
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