| 摘要 |
PURPOSE:To obtain a thermosetting resin composition having excellent heat- resistance and impact resistance, by compounding an isocyanate containing terminal isocyanate polyol with a specific unsaturated polyester resin at a specific ratio and reacting the mixture using a reaction injection molding process. CONSTITUTION:The objective composition can be produced by compounding (A) an isocyanate compound containing terminal isocyanate polyol with (B) an unsaturated polyester resin having >=2 hydroxyl groups. The ratio of the component A to the component B is 80-150 in terms of isocyanate index. The terminal isocyanate polyol is preferably a polypropylene glycol-type compound having a molecular weight of >=1,200.
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