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Catalysts of the reaction involving the isocyanates, constituted by tertiary hydroxyalkylamines
Catalysts of the reaction involving the isocyanates, constituted by tertiary hydroxyalkylamines
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机译:由叔羟烷基胺构成的涉及异氰酸酯的反应催化剂
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摘要
Isocyanate reactions, such as their condensation with polyols to form polyurethanes and their polymerization to polyisocyanurates, are promoted by certain hydroxyalkyl tertiary amine catalysts corresponding to the formula ##STR1## wherein Y = CH.sub.3 or ZPPZ = -- CH.sub. 2.CH.sub.2 OHPPn = 1 or 2
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机译:异氰酸酯反应,例如它们与多元醇的缩合反应,以形成聚氨酯,以及它们聚合为聚异氰脲酸酯,是由某些对应于分子式## STR1 ##的羟烷基叔胺催化剂促进的,其中Y = CH 3或Z P > Z =-CH.sub。 2.CH.sub.2 OH