公开(公告)号：US5717028A

公开(公告)日：1998-02-10

申请号：US902861

申请日：1997-07-30

申请人： Roman W. Wypart ,  Roger W. Avakian ,  Keith D. Treadway

发明人： Roman W. Wypart ,  Roger W. Avakian ,  Keith D. Treadway

IPC分类号： C08L23/28 ,  C08L51/04

CPC分类号： C08L23/28 ,  C08L51/04

摘要： A thermoplastic elastomeric composition is provided exhibiting reduced levels of hardness and enhanced levels of elongation. The composition contains a chlorinated polyolefin and graft copolymer having a rubber substrate present at a level of 65 to 90 percent by weight based on the total weight of the graft copolymer. Preferably the graft copolymer is an acrylonitrile-butadiene-styrene graft copolymer and preferably the chlorinated polyolefin is a chlorinated polyethylene having a high molecular weight and a relatively low chlorine level. The composition is useful for making molded articles such as interior automotive components requiring high elongation and tear resistance, reduced hardness and often high strain recovery.

摘要翻译： 提供了一种具有降低的硬度水平和提高的伸长水平的热塑性弹性体组合物。 该组合物含有氯化聚烯烃和接枝共聚物，其具有基于接枝共聚物总重量的65至90重量％的含量的橡胶基质。 优选地，接枝共聚物是丙烯腈 - 丁二烯 - 苯乙烯接枝共聚物，优选地，氯化聚烯烃是具有高分子量和较低氯含量的氯化聚乙烯。 该组合物可用于制造模制品，例如需要高伸长率和抗撕裂性，降低硬度和经常高应变恢复的内部汽车部件。