Catalyst and process for producing isocyanate trimers

Details Catalyst and process for producing isocyanate trimers Catalyst and process for producing isocyanate trimers

1995-10-05

1997-11-25

Gorr, Rachel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 44, 528 53, 2521822, 544193, 544222, C08G 1816

Patent

active

056914407

ABSTRACT:
A process for preparing isocyanate adducts having a high proportion of monoisocyanurate using a quaternary ammonium carboxylate trimerization catalyst. Also claimed are specific carboxylate catalysts, together with a process for producing the catalysts. The catalysts are particularly useful for trimerizing hexamethylene diisocyanate and isophorone diisocyanate.

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