BIS(HYDROXYAMIDE)-BASED ACID DIANHYDRIDE, METHOD FOR PRODUCING SAME, AND POLYIMIDE

摘要

Provided are: a novel bis(hydroxyamide)-based acid dianhydride exhibiting high transparency and superior solubility in organic solvents; a method for producing same; and a polyimide obtained therefrom. The acid dianhydride compound is represented by formula［1］. (R1, R2, R3, R4, R5, and R6 independently represent a hydrogen atom, an alkyl group having 1-20 carbon atoms, or a haloalkyl group having 1-20 carbon atoms. R2 and R3 as well as R5 and R6 may come together to form an alkylene chain.)