发明公开
- 专利标题: Polyimides, process for their preparation, and their use, and tetracarboxylic acids and tetracarboxylic acid derivatives
- 专利标题(中): 聚酰亚胺,其制备方法及其用途,四羧酸和四羧酸衍生物
-
申请号: EP85810527申请日: 1985-11-11
-
公开(公告)号: EP0181837A3公开(公告)日: 1988-05-25
- 发明人: Pfeifer, Josef, Dr. , Duthaler, Rudolf, Dr.
- 申请人: CIBA-GEIGY AG
- 专利权人: CIBA-GEIGY AG
- 当前专利权人: CIBA-GEIGY AG
- 优先权: CH548684 19841116
- 主分类号: C08G73/10
- IPC分类号: C08G73/10 ; C07C63/33 ; G03F07/00
信息查询