Process for the preparation of integral skin polyurethane...

Details Process for the preparation of integral skin polyurethane... Process for the preparation of integral skin polyurethane...

C - Chemistry, Metallurgy

08

G

403/14, 18/637

C08G 18/63 (2006.01) C08G 18/12 (2006.01) C08G 18/65 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1299320

PROCESS FOR THE PREPARATION OF INTEGRAL SKIN POLYURETHANE STEERING WHEELS Abstract of the Disclosure The integral skin polyurethane steering wheel is prepared by reacting (a) a mixture of a graft polymer dispersion in a polyol or a polyol mixture (b) an organic polyisocyanate selected from the group consisting of an isocyanate prepolymer prepared by reacting 4,4'- diphenylmethane diisocyanate with a mixture of dipropylene glycol and a polyoxypropylene glycol having a molecular weight of about 420, a polymeric polymethylene polyphenylene polyisocyanate containing about 55 weight percent diphenylmethane diisocyanate, a 1:1 mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate and mixtures thereof, (c) a blowing agent, (d) a chain extender, and (e) a catalyst, surfactant and optionally flame retardants, fillers U.V. absorbers and other additives. - 32 -

566495

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