发明授权
US4876329A Polyimide polymers and copolymers using 3,5-diaminobenzotrifluoride
失效
使用3,5-二氨基三氟甲苯的聚酰亚胺聚合物和共聚物
- 专利标题： Polyimide polymers and copolymers using 3,5-diaminobenzotrifluoride
- 专利标题（中）： 使用3,5-二氨基三氟甲苯的聚酰亚胺聚合物和共聚物
-
申请号： US212508申请日： 1988-06-28
-
公开(公告)号： US4876329A公开(公告)日： 1989-10-24
- 发明人: Weilong L. Chiang , Douglas E. Fjare , Neal R. Nowicki
- 申请人： Weilong L. Chiang , Douglas E. Fjare , Neal R. Nowicki
- 申请人地址： IL Chicago
- 专利权人： Amoco Corporation
- 当前专利权人： Amoco Corporation
- 当前专利权人地址： IL Chicago
- 主分类号： C08G73/10
- IPC分类号： C08G73/10
摘要：
Partially soluble, film-forming polyimides and their copolymers made using 3,5-diaminobenzotrifluoride are described. Thin films and coatings of these materials are relatively colorless and the polymers have a high Tg, excellent thermal stability, lower moisture uptake, and lower dielectric constant. They are useful as films, fibers, molded articles and as protective coatings, interlevel dielectrics, electric circuit substrates and the like for the electronics industry.
信息查询
