Method of preparing polyurethane foams using imidazolines as cat

Details Method of preparing polyurethane foams using imidazolines as cat Method of preparing polyurethane foams using imidazolines as cat

1982-03-30

1983-07-12

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521128, 528 53, C08G 1818

Patent

active

043931499

ABSTRACT:
A method of catalyzing the curing of polyurethane foams formed by reacting a polyol with a diisocyanate in the presence of a blowing agent and a catalyst comprising using as the catalyst a compound of the formula ##STR1## where R can be hydrogen, methyl, ethyl or R.sup.4 CO.sub.2 CH.sub.2 --; R.sup.1 can be hydrogen, methyl, ethyl or R.sup.4 CO.sub.2 CH.sub.2 --; R.sup.2 can be hydrogen or an alkyl group of 1-3 carbon atoms; R.sup.3 can be alkyl of 1-4 carbon atoms or phenyl; and R.sup.4 can be hydrogen, alkyl or alkenyl of 1-17 carbon atoms.

REFERENCES:
patent: 3152094 (1964-10-01), Erner et al.
patent: 3912689 (1975-10-01), Bechara et al.
patent: 4189543 (1980-02-01), Doorakian et al.
patent: 4212952 (1980-07-01), Murphy et al.
patent: 4234693 (1980-11-01), Wooler
patent: 4258138 (1981-03-01), Britton
patent: 4297443 (1981-10-01), Eckler et al.

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