Tertiary amine-containing polyols prepared in a mannich condensa

Details Tertiary amine-containing polyols prepared in a mannich condensa Tertiary amine-containing polyols prepared in a mannich condensa

1988-07-27

1989-11-28

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521167, C08G 1828

Patent

active

048838268

ABSTRACT:
Mannich polyols of low viscosity and reduced reactivity are prepared by condensing a phenolic compound with formaldehyde and a mixture of diethanolamine and at least one other alkanol amine. The condensation product is the alkoxylated to form a polyol which is particularly useful in preparing rigid polyurethane foam.

REFERENCES:
patent: 3297597 (1967-01-01), Edwards et al.
patent: 3998766 (1976-12-01), Kan et al.
patent: 4371629 (1983-02-01), Austin
patent: 4383102 (1983-05-01), McDaniel et al.
patent: 4487852 (1984-12-01), Brennan

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