Beta-amino carbonyl catalysts for polyurethane preparation

Details Beta-amino carbonyl catalysts for polyurethane preparation Beta-amino carbonyl catalysts for polyurethane preparation

1974-04-23

1976-05-04

Weinberger, Lorraine A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D29500

Patent

active

039547493

ABSTRACT:
Provided as catalysts for the formation of cellular urethane polymers ranging from flexible to rigid foams, are beta-amino carbonyl compounds wherein carbonyl is present as an amido or carboxylic acid ester group and the beta-amino group is present as dialkylamino or an N-morpholino or N,N'-piperazino heterocyclic nucleus. Effective in the catalysis of the water-isocyanate reaction, these beta-amino amides and beta-amino esters are used with particular advantage in the manufacture of water-blown flexible foams, both molded and free-rise, including high-resilience and flame-retarded foam. The beta-amino carbonyl catalysts allow for the formation of foam products essentially free of the odor associated with amines such as N-ethylmorpholine. In view of this highly desirable characteristic and their other beneficial properties, the catalysts of the invention are advantageously employed as direct replacements for N-ethylmorpholine in high-resilience and other foam formulations.

REFERENCES:
krakler, S. E., Chem. Abst., Vol. 58, 9299f, 1962.
Coble, G. W., Chem. Abst., Vol. 57, 16898c, 1962.

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