PROBLEM TO BE SOLVED: To provide an unsaturated polyester resin composition which has excellent molded product physical properties such as excellent impact resistance and abrasive resistance, can give fiber-reinforced molding materials having excellent light weight, enables the incineration of molded products because of having easy combustibility, and can suitably be used for fiber-reinforced plastic molded products having excellent recyclability.;SOLUTION: This unsaturated polyester resin composition comprises a polymerizable monomer, an isocyanate compound, and an unsaturated polyester resin which is obtained by reacting a polyhydric alcohol with a polybasic acid component containing an α,β-unsaturated polybasic acid or its anhydride as an essential component and has a number-average mol.wt. of 1,000 to 5,000.;COPYRIGHT: (C)2003,JPO
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