| 摘要 |
<p>Flexible automobile exterior body parts are molded from A polyurethane elastomer prepared from a reaction mixture comprising: a) a polymeric diol selected from the group consisting of poly(oxypropylene) glycol and ethylene oxide "tipped" poly(oxypropylene) glycol of molecular weight of from about 1750 to about 2500; b) methylenebis(4-phenylisocyanate);c) 1,4-butanediol. The invention also relates to this polyurethane elastomer.</p> |
