For pultrusion resin composition and pultrusion goods

摘要

PROBLEM TO BE SOLVED: To provide a resin composition for a pultrusion comprising a radical copolymerizable unsaturated resin which has both an excellent preservation stability and small shrinkage in the curing of a prepreg and a pultrusion product with little dimensional change obtained by using the composition. SOLUTION: The composition has a radical copolymerizable unsaturated resin composition as an essential component, which has as essential components, the radical copolymerizable unsaturated resin composition, a high polymer shrinkage reducing agent and a compatibilizer. The compatibilizer is characterized by being a graft copolymer having bonding chains (C1) formed mainly from a styrenic monomer, a skelton obtained by a polymerization reaction and bonding chains (C2) formed mainly from a polyether comprising a polyoxyalkylene ether, a polyester and/or a polycarbonate. The product is obtained by impregnating a fiber reinforcement with the composition.