POLYURETHANE FOAM-FILLED FOAM RESISTANT TO COMBUSTION AND METHOD OF PRODUCING SAME

摘要

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 preformed polyurethane foam chips having incorporated therein solid combustion retardant materials. The polyurethane foamfilled foams have excellent physical characteristics and, because of their combustion properties, are particularly suitable for furniture upholstery and cushioning applications including in mattresses.