Process for preparing low-odor and storage-stable...

Details Process for preparing low-odor and storage-stable... Process for preparing low-odor and storage-stable...

C - Chemistry, Metallurgy

08

G

C08G 18/02 (2006.01) C07C 263/00 (2006.01) C07C 265/14 (2006.01) C07D 251/34 (2006.01) C08G 18/09 (2006.01) C08G 18/16 (2006.01) C08G 18/18 (2006.01) C08G 18/20 (2006.01)

Patent

CA 2459595

Disclosed is a process for preparing low-odor and storage-stable monomer-containing polyisocyanurates from isophorone diisocyanate (IPDI) by a partial trimerization of IPDI over a period of from 2 to 30 minutes in the presence of from 0.05 to 1.5% by weight, based on the weight of IPDI, of a catalyst of the formula: (see formula I) (see formula II) (where Y- is a carboxylate anion having 2-8 carbon atoms, R is a .beta.-hydroxyalkyl group having 2-6 carbon atoms and X is an alkylene group having from 2 to 3 carbon atoms) continuously in a tube reactor, at a temperature of 20-120°C, and a pressure range of 0.5 to 5 bar and a subsequent thermal deactivation of the catalyst at 100-160°C.

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