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

1988-04-27

1988-11-15

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521114, 521131, C08G 1800

Patent

active

047850272

ABSTRACT:
A flexible polyurethane foam formulation which is non-reactive at or near ambient temperatures 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.

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patent: 3637543 (1972-01-01), Kus
patent: 3644234 (1972-02-01), Grieve
patent: 3965150 (1976-06-01), Moeller
patent: 3974109 (1976-08-01), Papa et al.
patent: 4108810 (1978-08-01), Baker
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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