Production of polyurethane foams

Details Production of polyurethane foams Production of polyurethane foams

1982-09-30

1983-12-06

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

4273855, 521 67, 521121, 521131, C08G 1814

Patent

active

044194579

ABSTRACT:
There is provided a method of producing an open-cell polyurethane foam comprising heating a mixture of an aqueous emulsion of a polyurethane-forming composition and a fluorocarbon compound of 1 to 3 carbon atoms having a boiling point of 5.degree. to 100.degree. C. The above emulsion may further contain an ionic surfactant.

REFERENCES:
patent: 2993013 (1961-07-01), Wolfe
patent: 3450649 (1969-06-01), Youker
patent: 3582499 (1971-06-01), Rogers et al.
patent: 3627710 (1971-12-01), Crary
patent: 3639301 (1972-02-01), Youker
patent: 3646178 (1972-02-01), Traubel et al.
patent: 3772220 (1973-11-01), Parker et al.
patent: 3839241 (1974-10-01), Harrell
patent: 3989869 (1976-11-01), Neumaier et al.
patent: 4260530 (1981-04-01), Reischl et al.
patent: 4314034 (1982-02-01), Fulmer et al.

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