Urethane foam catalyst

Details Urethane foam catalyst Urethane foam catalyst

1974-03-14

1976-01-20

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252426, 252431C, 260 25AM, 260 75NC, 260 75NM, 260 775AC, 260 775AM, C08G 1816

Patent

active

039336921

ABSTRACT:
This invention is a process for making a cellular polyurethane comprising reacting a polyalkylene polyol having reactive hydrogen atoms as determined by the Zerewitinoff method exhibiting a molecular weight of at least 500, an organic polyisocyanate, and water in the presence of a gel catalyst and a foaming catalyst comprising at least one compound selected from those of the formulae: ##SPC1##
Wherein R is a hydrocarbon, and R' is selected from the group consisting of hydrogen, halogens, and hydrocarbons.

REFERENCES:
patent: 2765341 (1956-10-01), Wirth et al.
patent: 3044971 (1962-07-01), Polis
patent: 3645927 (1972-02-01), Andres et al.

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