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Polyol polyurethane, resin hard polyurethane foam, method for producing the same, and method for producing hard polyurethane foam composite using the same
Polyol polyurethane, resin hard polyurethane foam, method for producing the same, and method for producing hard polyurethane foam composite using the same
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机译:多元醇聚氨酯,树脂硬质聚氨酯泡沫,其制备方法以及使用其制备硬质聚氨酯泡沫复合材料的方法
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摘要
The present invention relates to a novel polyol obtained by using a specified polyhydric alcohol, polyoxyalkylene polyol, aliphatic amine and/or alkamlamine as a raw material and adding an organic polycarboxylic acid or its anhydride and an alkylene oxide; a polyurethane resin prepared from said novel polyol and an organic polyisocyanate; a rigid polyurethane foam prepared by using a hydrochlorofluorocarbon or hydrofluorocarbon foaming agent which has very low public hazards; and a composite utilizing thereof. The production of rigid polyurethane foam by using the polyol of the invention can be carried out in good operation efficiency and low public hazards. Additionally, properties of the foam thus obtained is equivalent to those of rigid polyurethane foams obtained by using conventional chlorofluorocarbons. Consequently, the rigid polyurethane foam of the invention is very useful for insulation materials and structural insulation materials.
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