发明授权
- 专利标题： Bis[4-(3,4-dimethylene-pyrrolidyl)phenyl] methane
- 专利标题（中）： 双[4-（3,4-二甲基 - 吡咯烷基）苯基]甲烷
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申请号： US311551申请日： 1989-02-16
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公开(公告)号： US4895915A公开(公告)日： 1990-01-23
- 发明人: Raphael M. Ottenbrite
- 申请人： Raphael M. Ottenbrite
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址： DC Washington
- 主分类号： C07D207/32
- IPC分类号： C07D207/32 ; C07D207/325 ; C08G73/12
摘要：
A polyimide composition consisting essentially of recurring units having the following structural formula: ##STR1## is produced by the copolymerization of a bismaleimide and bis[4-(3,4-dimethylenepyrrolidyl)phenyl] methane.
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