Polyisocyanate composition.

摘要

A stable polyisocyanate composition containing from 3% to 30% by weight of trimerized isocyanate, from 25% to 55% by weight of diisocyanates, the remainder being higher functionality polyisocyanates, said composition having a Brookfield viscosity of 150 to 100000 cPs at 25 DEG C, an average isocyanate functionality of 2.4 to 3.0, an NCO group content of 26% to 31%, and having an infrared absorption peak at 1410 cm<-><1>, whereas the ratio of the height of said absorption peak at 1410 cm<-><1> to the height of the infrared absorption peak at 1610 cm<-><1> is of at least 0.8.