Integral skin rigid polyurethane structural foam

C - Chemistry – Metallurgy – 08 – G

Patent

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403/35, 403/47

C08G 18/66 (2006.01) C08G 18/40 (2006.01) C08G 18/65 (2006.01) C08J 9/34 (2006.01)

Patent

CA 1307372

INTEGRAL SKIN RIGID POLYURETHANE STRUCTURAL FOAM Abstract of the Disclosure The invention relates to integral skin rigid poly- urethane structural foam having high impact strength, high heat distortion and flame retardant properties. This foam is prepared from a polyol selected from the group consisting of polyoxyalkylene polyether polyol, a polyester polyol or mixture thereof, an organic polyisocyanate, a chain extender and blowing agent. -32-

561712

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