Process for the production of flame-retardant polyurethane foams

Details Process for the production of flame-retardant polyurethane foams Process for the production of flame-retardant polyurethane foams

1989-08-03

1991-04-09

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521906, C08G 1882

Patent

active

050065645

ABSTRACT:
This invention relates to a process for preparing flame-retardant polyurethane foams comprising impregnating an open-cell polyurethane foam with a mixture of a cross-linkable polychloroprene elastomer latex; a flame-retarding zinc salt of a metaboric or polyboric acid; a crosslinking agent, preferably zinc oxide; and, optionally, aluminum hydroxide and other additives.
This invention further relates to the use of the low flammability, non-melting polyurethane foams for the manufacture of upholstery materials.

REFERENCES:
patent: 3553132 (1971-01-01), Dunay
patent: 3718615 (1973-02-01), Woods et al.
patent: 4223095 (1980-09-01), Esser et al.
patent: 4224374 (1980-09-01), Priest
patent: 4254177 (1981-03-01), Fulmer
patent: 4439472 (1984-03-01), Bell
Derwent Database Reference No. 81-55729D.
H. L. Vandersall, Intumescent Coating Systems, Their Development and Chemistry the Journal of Fire & Flammability, (Apr., 1971) vol. 2, pp. 97-139.

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