发明公开
EP0518571A3 Favorably processable polyimide and process for preparing polyimide
失效
易于加工的聚酰亚胺和制备聚酰亚胺的方法
- 专利标题： Favorably processable polyimide and process for preparing polyimide
- 专利标题（中）： 易于加工的聚酰亚胺和制备聚酰亚胺的方法
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申请号： EP92305189.0申请日： 1992-06-05
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公开(公告)号： EP0518571A3公开(公告)日： 1993-10-20
- 发明人: Okawa, Yuichi , Tamai, Shoji , Yamaguchi, Akihiro
- 申请人： MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构： Rackham, Anthony Charles
- 优先权： JP142874/91 19910614
- 主分类号： C08G73/10
- IPC分类号： C08G73/10
摘要：
A favorably processable polyimide which has recurring structural units represented by the formula (I):
wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and is blocked at the polymer chain end with aromatic dicarboxylic anhydride represented by the formula (II):
wherein X is a divalent radical selected from the group consisting of a monoaromatic radical having from 6 to 27 carbon atoms, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member, is disclosed.
wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and is blocked at the polymer chain end with aromatic dicarboxylic anhydride represented by the formula (II):
wherein X is a divalent radical selected from the group consisting of a monoaromatic radical having from 6 to 27 carbon atoms, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member, is disclosed.
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