Process for the production of polyisocyanates which contain...

Details Process for the production of polyisocyanates which contain... Process for the production of polyisocyanates which contain...

C - Chemistry, Metallurgy

07

D

260/248.7

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

Patent

CA 1334848

The present invention is directed to a process for the preparation of a polyisocyanate having isocyanurate structure which comprises heating an organic diisocyanate to a temperature of from 100 to 275°C in the presence of a catalytic amount of an organic compound containing at least one aliphatic tertiary amine group and at least one aliphatic hydroxy group and having a molecular weight of no more than about 500 for a period of from about 0.1 minute to about 360 minutes.

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