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Rigid polyurethane foam and method for forming said foam using low molecular weight diol and triol
Rigid polyurethane foam and method for forming said foam using low molecular weight diol and triol
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机译:刚性聚氨酯泡沫以及使用低分子量二醇和三醇形成所述泡沫的方法
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摘要
The present invention is a polyurethane foam comprising the reaction product of a first reactant comprised of a polyisocyanate having an average isocyanate functionality of at least 2 and a second reactant comprised of a low molecular weight compound that has at least two to, at most, three groups containing an active hydrogen and water, wherein the reaction product is formed essentially in the absence of a cross-linking polyol and the polyurethane foam is substantially rigid. The invention is also a method of forming the polyurethane foam by contacting the first and second reactant for a time and temperature sufficient to form the foam.
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