Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1985-07-01
1986-12-30
Evans, J. E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
560146, 560190, C07C 8730
Patent
active
046327851
ABSTRACT:
Disclosed is a method for the trimerization of organic isocyanates comprising thermally activating, in the presence of said isocyanates, a catalyst comprising a carboxylic acid salt selected from the alkali metal salts or quaternary ammonium salts of particular substituted malonic acids of half-esters thereof, particular carbamyl substituted aliphatic acids, or triaryl acetic acids.
Mixtures of the catalysts with isocyanates have surprisingly long periods of stability at ambient temperatures (about 20.degree. C.) which makes the present method particularly suitable to systems for molding polyisocyanurates wherein long open times are required of a resin pre-mix prior to the actual curing step.
REFERENCES:
patent: 3954684 (1976-05-01), Farrissey et al.
patent: 3980594 (1976-09-01), Fabris et al.
patent: 4040992 (1977-08-01), Bechara et al.
patent: 4136240 (1979-01-01), Zimmerman et al.
patent: 4186255 (1980-01-01), Klein et al.
Evans J. E.
Rose James S.
The Dow Chemical Company
LandOfFree
Thermally activable trimerization catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermally activable trimerization catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally activable trimerization catalyst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1546252