Alkoxy group-containing silane-modified block copolymer type polyamic acid, polyimide block copolymers - silica hybrid cured product and metal laminate

摘要

PROBLEM TO BE SOLVED: To provide an alkoxy group-containing silane-modified block copolymer type polyamic acid which forms a highly adhesive coating film even if a casting process is used for a metal board or a metal foil.;SOLUTION: The alkoxy group-containing silane-modified block copolymer type polyamic acid is prepared by the reaction of polyamic acid (1) prepared by reacting a diamine (B) with a tetracarboxylic acid dianhydride (A) with a silane-modified polyamic acid (I) prepared by reacting an epoxy group-containing alkoxysilane partial condensation product (2) and by further reacting a tetracarboxylic acid dianhydride (C) and a diamine (D).;COPYRIGHT: (C)2005,JPO&NCIPI