Patent ID: 8911586

Claim:
A one liquid type cyanate-epoxy composite resin composition, comprising (A) cyanate ester resin, (B) epoxy resin and (C) latent curing agent, wherein the amount of the component (B) is 20-500 mass parts relative to 100 mass parts of the component (A), the amount of the component (C) is 5-60 mass parts relative to 100 mass parts of the total amount of the components (A) and (B); and said latent curing agent (C) comprises a modified amine compound (a), having been obtained by the reaction of at least one kind of aliphatic amine compound (a-1) represented by formula (I-1) with a polyglycidyl ether compound of polynuclear multivalent phenol compound (a-2), and having been mixed with a phenol resin (b); wherein R 1 and R 2 are each independently an alkyl group having 1-10 carbon atoms, and R 6 is an alkylene group having 1-10 carbon atoms, and said component (C) contains 20-60 mass parts of the component (b) relative to 100 mass parts of modified amine compound of the said component (a), and component (a) and component (b) having been mixed together to prepare component (C) before component (C) having been mixed with components (A) and (B).