摘要:
This invention relates to a new process for the production of polyisocyanates containing isocyanurate groups by partial trimerization of the isocyanate groups of organic polyisocyanates comprising(a) compounds or mixtures of compounds corresponding to the formula ##STR1## wherein R represents a saturated, aliphatic hydrocarbon radical having from 8 to 15 carbon atoms, and optionally(b) up to about 95 NCO equivalent %, based on the total of (a)+(b), of other organic polyisocyantes.This invention also relates to the compounds which may be obtained according to this process and to the use thereof for the production of isocyanate-polyaddition products such as polyurethanes.