POLYAMIDEIMIDE RESIN, INSULATING COATING MATERIAL, INSULATING COATING AND INSULATING WIRE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide primarily a polyamideimide resin excellent in heat resistance and further improved in breakdown voltage so as to contribute to high-voltage driving; and to provide secondly a polyamideimide resin contributing further to downsizing, weight saving and the like.SOLUTION: This polyamideimide resin is obtained by reacting: a polycarboxylic acid compound essentially including trivalent or higher polycarboxylic acid anhydride having an acid anhydride and a carboxyl group; 2,2-bis(4-(4-aminophenoxy)phenyl)hexafluoropropane represented by the general formula (1); and another aromatic polyamino compound or an aromatic polyisocyanate compound in a basic polar solvent.