Catalyst composition for flexible polyurethane foams

Details Catalyst composition for flexible polyurethane foams Catalyst composition for flexible polyurethane foams

1978-02-21

1979-11-06

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252431C, 260 18TN, 521125, C08G 1824

Patent

active

041736915

ABSTRACT:
The rise times exhibited by flexible polyurethane foams can be significantly reduced using a stannous salt as the gel catalyst in combination with a blowing catalyst that includes an antimony (III) salt of a carboxylic acid and a potassium salt of a carboxylic acid. A zinc salt of a carboxylic acid can optionally replace a portion of the antimony (III) salt. The present blowing catalysts are particularly useful for preparing dielectrically or ultrasonically heat-sealable foams.

REFERENCES:
patent: 3620985 (1971-11-01), Lankin et al.
patent: 3940517 (1976-02-01), DeLeon

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