Patent ID: 8883938
Filing Date: 2014-11-11
Classification: C08F,C08G,C08J,Y10T

Abstract:
1. A resin composition for a fiber-reinforced composite material, the resin composition comprising, as essential components, a bisphenol epoxy resin (A), an acid group-containing radical polymerizable monomer (B) selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, crotonic acid, itaconic acid, and acid anhydrides thereof, a radical polymerization initiator (C), and an amine-based curing agent (D) for an epoxy resin, wherein the mixing ratio of the components is such that the equivalent ratio (epoxy group/acid group) between an epoxy group in the bisphenol epoxy resin (A) and an acid group in the acid group-containing polymerizable monomer (B) is 1/0.8 to 1/0.05, and the equivalent ratio (acid group/active hydrogen) between an acid group in the acid group-containing polymerizable monomer (B) and active hydrogen in the amine-based curing agent (D) for an epoxy resin is 50/50 to 80/20, and the viscosity at 50° C. measured with an E-type viscometer is 500 mPa·s or less.