POLYIMIDE COMPOSITION AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a polyimide composition which excels in the stability when stored at ordinary temperature and has uniform coating film-formability suited in forming a liquid crystal oriented film, and a method for manufacturing the same. SOLUTION: The polyimide composition obtained by dissolving a polyimide based resin component in a polar solvent comprises a polyimide to be obtained by subjecting two kinds of acid dianhydrides to be represented by formulae (1) and (2) and two kinds of diamines to be represented by formulae (3) and (4) to direct imidation reaction as the resin component.