申请人:Amoco Corporation
公开号:US04973660A1
公开(公告)日:1990-11-27
Resinous condensation polymers of polycarboxylic acid compounds and aromatic diprimary amines comprising diamino-t-butyltoluene are described. In particular, film-forming polyamides, polyimides and polyamide-imides and their copolymers made using diamino-t-butyltoluene which have amino groups meta or para to each other on a benzene ring are described. These polymers have some solubility in organic solvents such as N-methylpyrrolidone, a high glass transition temperature, excellent thermal stability, and are useful in films, fibers and composites, and in the electronics industry as electrical component substrates, protective coatings, interlevel dielectrics and the like.
本文描述了由多羧酸化合物和芳香二元初级胺(包括二氨基叔丁基甲苯)组成的树脂状缩聚物。具体地描述了使用二氨基叔丁基甲苯制备的具有苯环上互为间位或对位的氨基基团的聚酰胺、聚酰亚胺和聚酰胺亚胺及其共聚物。这些聚合物在有机溶剂(如N-甲基吡咯烷酮)中具有一定的溶解度,具有高玻璃化转变温度,优异的热稳定性,可用于薄膜、纤维和复合材料,以及电子工业中的电子元件基板、保护涂层、层间电介质等。