Method of preparing dimensionally stable, flexible urethane foam

Details Method of preparing dimensionally stable, flexible urethane foam Method of preparing dimensionally stable, flexible urethane foam

1986-10-06

1988-06-14

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521116, 521117, 521122, 521130, 521157, 521172, 521904, C08G 1830

Patent

active

047512539

ABSTRACT:
An open celled, dimensionally stable, flexible urethane foam and method of preparing such foam, which method comprises adding a cell opening dimensionally stabilizing amount of an additive to a foamable urethane composition, and thereafter foaming the composition containing such additive to provide a dimensionally stable, flexible urethane foam product. The additive mixture employed comprises an ester reaction product of a long chain acid with polyethylene or polypropylene glycols and/or contains free acid to provide for a desired acid value. The dimensionally stable, flexible foam product produced is particularly useful in the automotive industry as a flexible molded-type foam for use as cushions and seats.

REFERENCES:
patent: 3579471 (1971-05-01), Dijkhuizen et al.

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