Thermally stable polyurethane elastomer

Details Thermally stable polyurethane elastomer Thermally stable polyurethane elastomer

C - Chemistry, Metallurgy

08

G

18/1216, 400/201

C08G 18/63 (2006.01) C08G 18/12 (2006.01) C08G 18/40 (2006.01) C08G 18/65 (2006.01)

Patent

CA 1080883

ABSTRACT OF THE DISCLOSURE Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising: (a) a poly(oxypropylene)-poly(oxyethylene) glycol of molecular weight of from about 1500 to about 4000 containing 15 to 50% by weight oxyethylene groups; (b) a "graft" polyol of molecular weight from about 2500 to about 4500, prepared by the in situ polymerization of one or more ethylenically unsaturated monomers in a poly(oxypropylene) and/or poly(oxypropylene)- poly(oxyethylene) glycol containing less than 15% by weight oxyethylene groups; (c) methylenebis(4-phenylisocyanate); (d) 1,4-butanediol, The invention also relates to this polyurethane elastomer.

266291

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