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Thermally stable polyurethane elastomers produced from poly(oxypropylene)- poly(oxyethylene)glycols of high oxyethylene group content
Thermally stable polyurethane elastomers produced from poly(oxypropylene)- poly(oxyethylene)glycols of high oxyethylene group content
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机译:由高氧乙烯基含量的聚(氧丙烯)-聚(氧乙烯)乙二醇生产的热稳定聚氨酯弹性体
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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.
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