Process for preparing soft flexible polyurethane foams and a pol

Details Process for preparing soft flexible polyurethane foams and a pol Process for preparing soft flexible polyurethane foams and a pol

1990-09-21

1992-06-23

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521125, 521130, 521137, 521170, 521174, C08G 1816, C08J 906, C08L 7504

Patent

active

051243695

ABSTRACT:
A process for preparing a soft flexible polyurethane foam by reacting (a) one or more organic polyisocyanates with (b) one or more polyols having a molecular weight in the range from about 400 to about 12,000, in the presence of (c) a catalyst, (d) a blowing agent, and (e), if desired, auxiliaries and/or additives, wherein the blowing agent (d) comprises water in admixture with about 0.01 to about 1 pbw, per 100 pbw polyol (b), of one or more non-crosslinked organic polyelectrolytes having a molecular weight in the range from about 1000 to about 20,000,000.

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