RESIN COMPOSITION, CURED FILM AND OPTICAL MEMBER

• Main Authors: ERIYAMA YUUICHI, ANDO SHINJI, SUGAWARA SHUICHI, UEDA MITSURU, RYU KANETAKE, SHIBAZAKI YUJI, NAKAMURA YASUHIRO, TAKASE HIDEAKI, KURIYAMA KEISUKE
• Format: Patent
• Language: English
• Published: 13.11.2008
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a resin composition which forms a cured film having a high refractive index, being excellent in transparency and further excellent also in heat resistance and mainly composed of an imidized polymer having a specific structure. SOLUTION: The resin composition comprises one or more kinds of polyamic acids having structures represented by general formula (3) wherein R is a tetravalent organic group; R1are each independently a 1-3C alkyl group; (a) are each independently an integer of 0-4; (b) are each independently an integer of 0-3; m is 1-100,000 and (E) an organic solvent. COPYRIGHT: (C)2009,JPO&INPIT