EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL

• Main Authors: NODA SHUNSAKU, OOSETO HIROKI
• Format: Patent
• Language: English
• Published: 29.06.1999
• Edition: 6
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; 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; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To obtain the subject composition that gives the cured products excellent elongation and elasticity and is useful in the sports purposes as golf club shafts and the like, in the aerospace field, in the general industries by using a specific epoxy resin and a curing agent. SOLUTION: This epoxy resin composition includes (A) an epoxy resin mainly comprising (i) one or more kinds of an epoxy resins of formula I (n is 0 or more; Y is a 6-20C organic divalent group; X is a structure of formula II; m is 0 or more; Z is -CH2 - or the like) and (ii) one or more kinds of epoxy resins of formula III (R -R are each H, a halogen or the like) and (B) a curing agent such as dicyanadiamide. In a preferred embodiment, the amount of the component Ai is 5-50 wt.% and the component Aii is 10-60 wt.% based on the whole amount of the component A. As a component Ai, is cited a reaction product between a bis-phenol A type epoxy resin and tolylene diisocyanate, while the component Aii is, for example, resorcinol glycidyl ether or like.