Process for the production of flame-retardant polyurethane...

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

C - Chemistry, Metallurgy

08

J

117/33

C08J 9/42 (2006.01)

Patent

CA 1335061

This invention relates to a process for prepar- ing flame-retardant polyurethane foams comprising impregnating an open-cell polyurethane foam with a mixture of a cross-linkable elastomer latex, preferably a polychloroprene latex; a flame-retarding zinc salt of a polymetaboric 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.

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