TETRACARBOXYLIC ACID DIANHYDRIDE, AND POLYAMIC ACID AND IMIDIZED POLYMER PRODUCED EACH USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a new tetracarboxylic acid dianhydride for producing an imidized polymer of a higher refractive index with excellent transparency and heat resistance, and to provide a polyamic acid and the imidized polymer each produced using the same. SOLUTION: The new tetracarboxylic acid dianhydride is represented by general formula (1). COPYRIGHT: (C)2009,JPO&INPIT