Thermally stable polyurethane - elastomers of poly - oxypropylene (- poly) oxyaethylenglykol

摘要

Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising: PP A. A POLY(OXYPROPYLENE)-POLY(OXYETHYLENE) GLYCOL OF MOLECULAR WEIGHT OF FROM ABOUT 1750 TO ABOUT 4000 CONTAINING 15 TO 50% BY WEIGHT OXYETHYLENE GROUPS;PPB. METHYLENEBIS(4- PHENYLISOCYANATE);P PC. 1,4-BUTANEDIOL.PP The invention also relates to this polyurethane elastomer.