发明授权
US4420599A Process of producing copolymers of an aromatic vinyl monomer and maleic
anhydride
失效
制备芳族乙烯基单体和马来酸酐的共聚物的方法
- 专利标题： Process of producing copolymers of an aromatic vinyl monomer and maleic anhydride
- 专利标题（中）： 制备芳族乙烯基单体和马来酸酐的共聚物的方法
-
申请号： US400471申请日： 1982-07-21
-
公开(公告)号： US4420599A公开(公告)日： 1983-12-13
- 发明人: Kenji Seki , Eiichi Terada
- 申请人： Kenji Seki , Eiichi Terada
- 申请人地址： JPX Tokyo
- 专利权人： Idemitsu Kosan Company Limited
- 当前专利权人： Idemitsu Kosan Company Limited
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX56-121878 19810805; JPX56-121879 19810805
- 主分类号： C08F2/02
- IPC分类号： C08F2/02 ; C08F8/48 ; C08F291/02 ; C08F222/08 ; C08F222/16
摘要：
A process of producing a copolymer of aromatic vinyl compound and maleic anhydride by adding half-ester maleate in two or more steps to the aromatic vinyl compound to perform the copolymerization reaction, and dealcoholating the unit of the half-ester maleate in the resulting copolymer to cyclize. The thus obtained aromatic vinyl compound-maleic anhydride copolymer has excellent transparency and thermal resistance.
公开/授权文献
信息查询
