公开(公告)号：US20130123432A1

公开(公告)日：2013-05-16

申请号：US13811618

申请日：2011-07-22

申请人： Marco Ciarafoni ,  Paola Massari ,  Manikanden Rathinakumar ,  Gisella Bindini ,  Tiziana Caputoi

发明人： Marco Ciarafoni ,  Paola Massari ,  Manikanden Rathinakumar ,  Gisella Bindini ,  Tiziana Caputoi

IPC分类号： C08L23/16

CPC分类号： C08L23/16 ,  C08L23/12 ,  C08L2205/02 ,  C08L2207/02 ,  C08L2308/00 ,  C08L2666/06

摘要： A propylene polymer composition comprising (percent by weight): A) 68%-80%, of a propylene homopolymer having a Polydispersity Index (P.I.) value of from 4.7 to 10 and MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 10 to 30 g/10 min; B) 20%-32%, of a copolymer of propylene containing from 40.1% to 42.5% extremes included of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. comprised between 3 and 6 dl/g and a MFR L from 4 to 12 g/10 min Said Propylene polymer composition being particularly suitable for injection moulded articles having high rigidity and high impact properties at room and at low temperatures.

摘要翻译： 包含（重量％）的丙烯聚合物组合物：A）68％-80％的多分散指数（PI）值为4.7至10的丙烯均聚物和MFR L（根据ISO 1133的熔体流动速率，条件L ，即230℃和2.16kg负荷）为10至30g / 10min; B）20％-32％的含有40.1％至42.5％极限的丙烯的共聚物，包括乙烯衍生单元; 所述组合物的特性粘度在25℃下可溶于二甲苯的馏分为3至6dl / g，MFR L为4至12g / 10分钟。所述丙烯聚合物组合物特别适合于具有高的 室内和低温下的刚性和高冲击性能。