发明公开
- 专利标题： Process for forming end-capped polyamic acids polyimides
- 专利标题（中）： 用于形成末端多聚酰胺聚酰胺的方法
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申请号： EP90109992.9申请日： 1990-05-25
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公开(公告)号： EP0399558A3公开(公告)日： 1991-09-04
- 发明人: Lee, Burnell , Li, Hsueh Ming
- 申请人： ETHYL CORPORATION
- 申请人地址： Ethyl Tower 451 Florida Boulevard Baton Rouge Louisiana 70801 US
- 专利权人： ETHYL CORPORATION
- 当前专利权人： ETHYL CORPORATION
- 当前专利权人地址： Ethyl Tower 451 Florida Boulevard Baton Rouge Louisiana 70801 US
- 代理机构： Sandmair, Kurt, Dr. Dr.
- 优先权： US357236 19890526
- 主分类号： C08G73/14
- IPC分类号： C08G73/14
摘要：
This invention discloses a process where a portion of an amine terminated polyamic acid intermediate is end-capped with an aromatic monoanhydride additionally substituted with a free carboxylic acid or ester thereof. The polyamic acids of this invention are readily converted to high molecular weight polyimides which may contain a small amount of amide groups.
公开/授权文献
- EP0399558A2 Process for forming end-capped polyamic acids polyimides 公开/授权日：1990-11-28
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