Flame and smoke reduced high density polyurethane foams

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 9/00 (2006.01) C08G 18/26 (2006.01) C08G 18/38 (2006.01) C08G 18/48 (2006.01) C08K 5/21 (2006.01) C08K 5/3492 (2006.01)

Patent

CA 2046235

FLAME AND SMOKE REDUCED HIGH DENSITY POLYURETHANE FOAM Abstract of the Disclosure This invention relates to rigid polyurethane foams having densities from about 13 lb/ft3 to about 30 lb/ft3 which exhibit reduced flammability and smoke generating characteristics. This is accomplished by reacting an aromatic isocyanate with a polyhydroxy containing compound, a blowing agent, optional additives, and incorporating a combination of melamine and urea into the unreacted polyhydroxy containing resin. -18-

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