Process for the production of polyisocyanates containing...

Details Process for the production of polyisocyanates containing... Process for the production of polyisocyanates containing...

C - Chemistry, Metallurgy

07

D

402/131, 260/248

C07D 251/34 (2006.01) C08G 18/79 (2006.01)

Patent

CA 1251793

A PROCESS FOR THE PRODUCTION OF POLYISOCYANATES CONTAIN- ING ISOCYANURATE GROUPS, THE COMPOUNDS WHICH MAY BE OBTAINED ACCORDING TO THIS PROCESS, AND THE USE THEREOF FOR THE PRODUCTION OF POLYURETHANES ABSTRACT OF THE DISCLOSURE This invention relates to a new process for the production of polyisocyanates containing isocyan- urate groups by partial trimerization of the isocyanate groups of organic polyisocyanates comprising a) compounds or mixtures of compounds corre- sponding to the formula Image 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 polyisocya- nates. 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.

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