Process for producing a polyurethane foam

Details Process for producing a polyurethane foam Process for producing a polyurethane foam

1995-06-07

1996-06-18

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521172, 521174, C08G 1800

Patent

active

055278337

ABSTRACT:
A process for producing a polyurethane foam includes the steps of (a) providing a substantially uniform mixture having an isocyanate, an active hydrogen-containing compound, a blowing agent, and a catalyst to form a reaction mixture, and (b) expanding the reaction mixture to produce the polyurethane foam. The active hydrogen-containing compound has from about 50 to 100 parts-by-weight of a first active hydrogen-containing compound having an equivalent weight of from about 200 to about 800 and from 0 to about 50 parts-by-weight of a second active hydrogen-containing compound. The average equivalent weight of the active-hydrogen containing compound is in the range of from about 150 to about 700.

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