| 摘要 |
PURPOSE:To obtain a resin composition excellent in chemical resistance and heat resistance, by mixing a resin containing N-phenylmaleimide with a hydroxyl group-containing unsaturated monomer and styrene as components with a polyisocyanate compound. CONSTITUTION:A resin composition comprising a resin (A) comprising 8-25wt% N-phenylmaleimide, 8-20wt% hydroxyl group-containing unsaturated monomer, 20-80wt% styrene and the balance of other copolymerizable unsaturated monomers (the total being 100wt%) and a polyisocyanate compound (B) mixed at an NCO index of 0.6-1.5. The hydroxyl group-containing unsaturated monomer plays a role of a reaction site for the urethane formation reaction, and 2-hydroxyethyl methacrylate is particularly suitably used. Examples of said other copolymerizable unsaturated monomers which can be particularly desirably used include n-butyl methacrylate, isobutyl methacrylate and trifluoroethyl methacrylate.
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