POLYIMIDE PRECURSOR COMPOSITION, METHOD OF PRODUCING POLYIMIDE, POLYIMIDE, POLYIMIDE FILM, AND SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a polyimide precursor composition which makes it possible to obtain polyimide having excellent transparency, a low linear thermal expansion coefficient, higher heat resistance, and excellent mechanical characteristics, and a polyimide production method. ! SOLUTION: This invention relates to a polyimide precursor composition comprising a polyimide precursor and an imidazole compound, where the content of the imidazole compound is less than 4 moles relative to the repeating unit 1 mole of the polyimide precursor. ! COPYRIGHT: (C)2015,JPO&INPIT