公开(公告)号：US09428637B2

公开(公告)日：2016-08-30

申请号：US14903000

申请日：2014-06-24

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Rainer Kohler ,  Michele Grazzi ,  Jurgen Rohrmann ,  Giampaolo Pellegatti

IPC: C08L23/14

CPC classification number: C08L23/14 ,  C08K7/14 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L2205/02 ,  C08L2205/025

Abstract: The present disclosure relates to a composition comprising: (A) 30-60% by weight of a soft polyolefin composition comprising 10-50% by weight of a copolymer (a) of propylene, which contains from 1-8% by weight of comonomer; 50-90% by weight of a copolymer (b) of ethylene and other alpha-olefin(s) and from 57-80% of ethylene; where the weight ratio of the content of copolymer component (b) to the fraction XS (soluble in xylene) at room temperature (about 25° C.), both (b and XS) referred to the total weight of (a)+(b), is 1.5 or less, and the intrinsic viscosity [η] of the XS fraction is 3 dl/g or more; and the total quantity of copolymerized ethylene is 30-65% by weight; (B) 5-30% of glass fiber filler; (C) 0.5%-3% by weight of a compatibilizer; and (D) 10-40% by weight of a polypropylene component selected from propylene homopolymers, propylene copolymers containing up to 5% by moles of ethylene and/or C4-C10 α-olefin(s) and combinations of such homopolymers and copolymers, with a MFR from 0.3 to 2500 g/10 min.

Abstract translation: 本公开内容涉及一种组合物，其包含：（A）30-60重量％的包含10-50重量％的丙烯共聚物（a）的软聚烯烃组合物，其含有1-8重量％的共聚单体 ; 50-90重量％的乙烯和其它α-烯烃的共聚物（b）和57-80％的乙烯; 其中共聚物组分（b）的含量与室温（约25℃）下的馏分XS（可溶于二甲苯）的重量比（b和XS）均指（a）+（ b）为1.5以下，XS馏分的特性粘度[η]为3dl / g以上， 共聚乙烯的总量为30-65重量％; （B）5-30％的玻璃纤维填料; （C）0.5％-3％（重量）增容剂; 和（D）10-40重量％的选自丙烯均聚物的聚丙烯组分，含有至多5摩尔％乙烯和/或C 4 -C 10α-烯烃的丙烯共聚物以及这些均聚物和共聚物的组合， MFR为0.3〜2500g / 10分钟。