Process for the preparation of integral skin polyurethane steeri

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

1987-07-01

1991-02-19

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521140, 521159, 521174, 521176, C08L 7514

Patent

active

049945025

ABSTRACT:
An 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. adsorbers and other additives.

REFERENCES:
patent: 4104236 (1978-08-01), Simroth
patent: 4542166 (1985-09-01), Mabuchi
patent: 4568705 (1986-02-01), Grace et al.

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