Flexible polyurethane foams with reduced tendency for shrinkage

Details Flexible polyurethane foams with reduced tendency for shrinkage Flexible polyurethane foams with reduced tendency for shrinkage

1992-11-02

1993-05-04

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

25218224, 25218225, 25218227, 521176, C09K 300

Patent

active

052082717

ABSTRACT:
A perfluorinated sulfonamide surfactant is provided which reduces polyurethane foam shrinkage upon demolding. The surfactant is particularly useful to reduce shrinkage of water-blown flexible polyurethane foams without the need for mechanical crushing.

REFERENCES:
patent: 3708537 (1973-01-01), Groves
patent: 4026845 (1977-05-01), Kim et al.
patent: 4101468 (1978-07-01), Perrey et al.
patent: 4108782 (1978-08-01), Thompson
D. R. Battice & W. J. Lopes, "New Cell Opening Surfactants for Molded High Resiliency Polyurethane Foam," Oct. 1986, pp. 145-148.

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