| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thermosetting resin composition capable of being hardened at normal temperature, and providing a polyurethane molding product excellent in impact resistance and heat resistance. SOLUTION: This thermosetting resin composition usable for polyurethane molding is composed of a polyol component comprising (A) a polymer polyol having a polymer part composed of styrene and/or acrylonitrile as a constituent units, three or more hydroxyl groups in the molecule, and 1,000-5,000 molecular weight, (B) a triol having hydroxyl group at the end of the glycerol or trimethylolpropane base, and 300-1,000 molecular weight, and (C) an amine-based polyol having 4-5 hydroxyl groups at the end of ethylenediamine, diethylenetriamine or toluenediamine base, and 300-800 molecular weight, and an isocyanate component comprising a polyisocyanate having two or more isocyanate groups in the molecule.
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