Catalyst compositions for trimerizing organic isocyanates

Details Catalyst compositions for trimerizing organic isocyanates Catalyst compositions for trimerizing organic isocyanates

1984-03-08

1985-08-20

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

521115, 521129, 528 48, 544193, 564461, C07D25134, C08G 1818, B01J 3102

Patent

active

045364907

ABSTRACT:
Disclosed are novel compositions capable of catalytically trimerizing organic isocyanates said compositions comprising solutions of the reaction products obtained by reacting in an inert solvent in substantially equimolar proportions electron-rich ketene-aminals with electron-poor olefins having the respective formulae (I) and (II) ##STR1## The variously substituted electron-rich ketene-aminals (I), as the name implies, have high electron density associated with the double bond because of the two tertiary amine groups while the electron-poor olefins (II) have the opposite situation due to the presence of electron withdrawing substituents R.sub.9 and R.sub.10.
Also disclosed is an improved process for trimerizing organic isocyanates using the above catalyst compositions including the preparation of polyisocyanurate polymers and isocyanurate-modified polyisocyanates.

REFERENCES:
patent: 3330828 (1967-07-01), Grogler et al.
patent: 3419612 (1968-12-01), Cross et al.
patent: 3745133 (1973-07-01), Communale et al.
patent: 3896052 (1975-07-01), Lockwood et al.
patent: 4111914 (1978-09-01), Kresta et al.
patent: 4342841 (1982-08-01), Alberino et al.
Gompper et al., Angewandte Chemie, Int. Ed., 6, 453, (1967).

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