Process for preparing polyurethane foams in the presence of a po

Details Process for preparing polyurethane foams in the presence of a po Process for preparing polyurethane foams in the presence of a po

1988-01-21

1988-08-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521116, 521157, C08J 916

Patent

active

047645415

ABSTRACT:
A flexible polyurethane foam formulation which is non-reactive at or near ambient temperature is provided. The formulation comprises a polyisocyanate, a polyfunctional active hydrogen containing compound, an amine catalyst, a blowing agent and a polyether acid. The formulation which becomes reactive above 40.degree. C. has the advantage, over similar systems based on formic acid, that the polyurethane foam is not tight and does not suffer from skin peeling.

REFERENCES:
patent: 3965150 (1976-06-01), Moeller
patent: 3974109 (1976-08-01), Papa et al.
patent: 4452924 (1984-06-01), Radovich
patent: 4546122 (1985-10-01), Radovich et al.
patent: 4569952 (1986-02-01), Radovich et al.
patent: 4701474 (1987-10-01), Bailey, Jr. et al.

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