Patents Assigned to TOKYO POLYTECHNIC UNIVERSITY

NORBORNANE-2-SPIRO-alpha-CYCLOALKANONE-alpha'-SPIRO-2''-NORBORNANE-5,5'',6,6''-TETRACARBOXYLIC DIANHYDRIDE, NORBORNANE-2-SPIRO-alpha-CYCLOALKANONE-alpha'-SPIRO-2''-NORBORNANE-5,5'',6,6''-TETRACARBOXYLIC ACID AND ESTER THEREOF, METHOD FOR PRODUCING NORBORNANE-2-SPIRO-alpha-CYCLOALKANONE-alpha'-SPIRO-2''-NORBORNANE-5,5'',6,6''-TETRACARBOXYLIC DIANHYDRIDE, POLYIMIDE OBTAINED BY USING THE SAME, AND METHOD FOR PRODUCING POLYIMIDE

Publication number: 20130079490

Abstract: A norbornane-2-spiro-?-cycloalkanone-??-spiro-2?-norbornane-5,5?,6,6?-tetracarboxylic dianhydride represented by the following general formula (1): [in the formula (1), n represents an integer of 0 to 12, and R1s, R2, R3 each independently represents a hydrogen atom or the like].

Type: Application

Filed: February 9, 2011

Publication date: March 28, 2013

Applicants: TOKYO POLYTECHNIC UNIVERSITY, JX NIPPON OIL & ENERGY CORPORATION

Inventors: Toshihiko Matsumoto, Shinichi Komatsu