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Polyurethanes prepared from polycarbonate polyols, articles and coatings prepared therefrom and methods of making the same
Polyurethanes prepared from polycarbonate polyols, articles and coatings prepared therefrom and methods of making the same
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机译:由聚碳酸酯多元醇制得的聚氨酯,由其制得的制品和涂料及其制备方法
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摘要
The present invention provides polyurethanes including a reaction product of components including: (a) about 1 equivalent of at least one polyisocyanate; (b) about 0.3 to about 1 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) about 0.01 to about 0.3 equivalents of at least one polycarbonate diol, wherein the reaction product components are essentially free of polyether polyol and amine curing agent and the reaction components are maintained at a temperature of at least about 100° C. for at least about 10 minutes; compositions, coatings and articles made therefrom and methods of making the same.
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