申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US05041513A1
公开(公告)日:1991-08-20
A polyimide resin is prepared by polymerizing (A) a tetracarboxylic acid dianhydride component consisting essentially of 10 to 50 mol % of 2,2-bis(3,4-benzene-dicarboxylic anhydride)perfluoropropane and 90 to 50 mol % of pyromelitic dianhydride or similar acid dianhydride and (B) a diamine component consisting essentially of 10 to 80 mol % of a silicon diamine and 90 to 20 mol % of an ether diamine. The polyimide resin is soluble in ordinary organic solvents to form solutions which are readily applicable to substrates, typically providing insulating protective coatings on electronic parts.
聚酰亚胺树脂是通过聚合(A)四羧酸二酐组分制备而成,该组分基本上包含10-50摩尔%的2,2-双(3,4-苯二甲酸酐)全氟丙烷和90-50摩尔%的焦亚甲基二酸酐或类似的酸酐,以及(B)一种二胺组分,基本上包含10-80摩尔%的硅二胺和90-20摩尔%的醚二胺。该聚酰亚胺树脂可溶于普通有机溶剂,形成易于应用于基材的溶液,通常在电子零件上提供绝缘保护涂层。