POLYISOCYANATE COMPOSITIONS

摘要

The invention provides organic polyisocyanate compositions comprising a polyisocyanate component and a non-ionic surface active agent devoid of isocyanate-reactive groups characterised in that the polyisocyanate component comprises an isocyanate-containing reaction product of a uretonimine-modified polyisocyanate and a polyol having a molecular weight of from 500 to 10,000. The invention further provides aqueous emulsions derived from the polyisocyanate compositions, a method of their use for binding polyurethane foam scrap and foam composites prepared by the method.