METHOD OF PRODUCING POLYIMIDE RESIN, METHOD OF PRODUCING POLYIMIDE COATING, METHOD OF PRODUCING POLYAMIC ACID SOLUTION, POLYIMIDE COATING, AND POLYAMIC ACID SOLUTION

摘要

A polyimide resin produced by heating a polyamic acid resulting from the reaction of a tetracarboxylic acid dianhydride component and a diamine component in N,N,N′,N′-tetramethylurea.