Polyurethane foam-filled foam resistant to combustion and method

Details Polyurethane foam-filled foam resistant to combustion and method Polyurethane foam-filled foam resistant to combustion and method

1982-08-18

1984-03-20

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521107, 521114, 521123, 521137, C08G 1814

Patent

active

044382200

ABSTRACT:
Polyurethane foam products comprising a foam filled with a foam and a large amount of combustion retardant materials are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein solid combustion retardant materials. The polyurethane foam-filled foams have excellent physical characteristics and, because of their combustion properties, are particularly suitable for furniture upholstery and cushioning applications including in mattresses.

REFERENCES:
patent: 3717597 (1973-02-01), Hesskamp et al.
patent: 3897372 (1975-07-01), Kehn et al.
patent: 4054706 (1977-10-01), Shapiro
patent: 4385131 (1983-05-01), Fracolossi et al.

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