发明授权
- 专利标题： Tough, soluble, aromatic, thermoplastic copolyimides
- 专利标题（中）： 坚韧，可溶，芳香，热塑性共聚酰亚胺
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申请号： US359752申请日： 1994-12-16
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公开(公告)号： US5741883A公开(公告)日： 1998-04-21
- 发明人: Robert G. Bryant
- 申请人： Robert G. Bryant
- 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： C08G73/10
- IPC分类号： C08G73/10 ; C08G69/26
摘要：
Tough, soluble, aromatic, thermoplastic copolyimides were prepared by reacting 4,4'-oxydiphthalic anhydride, 3,4,3',4'-biphenyltetracarboxylic dianhydride and 3,4'-oxydianiline. These copolyimides were found to be soluble in common amide solvents such as N,N'-dimethyl acetamide, N-methylpyrrolidinone, and dimethylformamide allowing them to be applied as the fully imidized copolymer and to be used to prepare a wide range of articles.
公开/授权文献
- US4421752A Isoxazolyl indolamines as hypoglycemics 公开/授权日：1983-12-20
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