EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, FIBER-REINFORCED COMPOSITE MATERIAL, AND ITS PRODUCTION METHOD

• Main Authors: TANAKA TAKESHI, TAKIYAMA HIROYUKI, KAMAE TOSHIYA, ARAI NOBUYUKI
• Format: Patent
• Language: English
• Published: 16.09.2004
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide an epoxy resin composition which excels in heat resistance and toughness, has such a low viscosity as to enable sufficient impregnation into reinforcing fibers, and gives a fiber-reinforced composite material excellent in heat resistance and mechanical properties such as tensile strength and CAI (compression strength after impact). SOLUTION: The epoxy resin composition for a fiber-reinforced composite material is composed of (A) an epoxy resin represented by general formula (I) and/or (II) and (B) a polyamine. In formula (I), R1is a 1-4C alkyl group; R2is a hydrogen atom, a halogen atom, or a 1-4C alkyl group; and X is a 1-4C alkylene group. In formula (II), R3is a 1-4C alkyl group; and R4is a hydrogen atom, a halogen atom, or a 1-4C alkyl group. COPYRIGHT: (C)2004,JPO&NCIPI