公开(公告)号：US20140303310A1

公开(公告)日：2014-10-09

申请号：US14357474

申请日：2012-10-30

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： Fabiana Fantinel ,  Sander Willems ,  Michele Grazzi ,  Giampaolo Pellegatti ,  Jurgen Rohrmann ,  Shahram Mihan

IPC: C08L23/12 ,  C08F210/16

CPC classification number: C08F210/16 ,  C08K3/34 ,  C08L23/06 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/16 ,  C08L2205/02 ,  C08L23/0815

Abstract: Polyolefin compositions suitable for injection moulded items e.g. for impact bumpers and car interiors comprising from 30% to 90% by weight of an heterophasic propylene polymer composition (A); and from 10% to 70% by weight of a multimodal ethylene/C6-C12 alpha olefin copolymer (B); having density from 0.850 to 0.920 g/cm3, total comonomer content from 6% to 30% by weight, Mw/Mn from 4 to 20; intrinsic viscosity in decalin at 135° C. from 1.0 to 4.0 dL/g, and comprising an HDPE fraction (HDPE % wt) up to 30% wt; further comprising up to 50% by weight of a filler (C) and optionally, in amount up to 10% by weight with respect to the overall composition, an impact modifier masterbatch component (D) consisting of a ultra-soft heterophasic copolymer component.

Abstract translation: 适用于注射成型物品的聚烯烃组合物 用于冲击保险杠和汽车内饰，其包含按重量计30％至90％的异相丙烯聚合物组合物（A）; 和10重量％至70重量％的多峰乙烯/ C 6 -C 12α-烯烃共聚物（B）; 密度为0.850〜0.920g / cm3，总共聚单体含量为6〜30重量％，Mw / Mn为4〜20; 在135℃，萘烷中的特性粘度为1.0-4.0dL / g，并且包含高达30％wt的HDPE级分（HDPE％wt）; 进一步包含至多50重量％的填料（C），并且任选地，相对于整个组合物，其量为至多10重量％，由超软多相共聚物组分组成的抗冲改性剂母料组分（D）。