Patent ID: 7591973
Filing Date: 2009-09-22
Classification: C08G,C08J,Y10T

Abstract:
1. A method for producing a fiber-reinforced composite material plate, comprising: preparing a prepreg comprising a reinforced fiber and an epoxy resin composition; and heating and pressurizing the prepreg for a molding time of 15 minutes or less, at a molding temperature of at least 120° C. and a molding pressure of at least 10 kg/cm wherein the epoxy resin composition, comprises: a component A; a component B; a component C; and a component D; wherein: a content of a sulfur atom in the composition is from 0.2 to 7% by mass; a content of component C in the composition is from 1 to 15% by mass; the component A comprises an epoxy resin; the component B comprises an amine compound having at least one sulfur atom in a molecule thereof (component B-1) and/or a reaction product of the epoxy resin and the amine compound having at least one sulfur atom in the molecule thereof (component B-2); the component C comprises a urea compound; and the component D comprises a dicyandiamide.