Polyimide alloy, polyimide alloy precursor resin composition, polyimide alloy precursor resin solution, and method for producing polyimide alloy

摘要

PROBLEM TO BE SOLVED: To provide a polyimide alloy capable of having sufficiently high heat resistance while having sufficiently high transparency. A polycondensation product of a cycloaliphatic tetracarboxylic dianhydride having an aliphatic 6-membered ring structure and at least one diamine compound selected from the group consisting of aromatic diamines and aliphatic diamines. A cycloaliphatic polyimide; and at least selected from the group consisting of diphenyl-3,3',4,4'-tetracarboxylic dianhydride and benzene-1,2,4,5-tetracarboxylic dianhydride. One aromatic tetracarboxylic dianhydride and a wholly aromatic polyimide which is a polycondensation product of an aromatic diamine; and the cyclic aliphatic polyimide and the cyclic aliphatic relative to the total amount of the wholly aromatic polyimide A polyimide alloy, wherein the content of the group polyimide is 62 to 95% by mass. [Selection diagram] None