公开(公告)号：US20140371371A1

公开(公告)日：2014-12-18

申请号：US14372242

申请日：2013-01-16

Applicant: BOREALIS AG

Inventor： Rao Balakantha Kona ,  Stefan Schiesser ,  Andreas Hauer ,  Hansjorg Pramer

IPC: C08L23/12

CPC classification number: C08L23/12 ,  C08K3/34 ,  C08K3/346 ,  C08L23/10 ,  C08L23/142 ,  C08L23/16 ,  C08L2205/03 ,  C08L2207/02

Abstract: The invention pertains to a polypropylene composition consisting of: 55 to 79 wt % base polymer mix; 18 to 44.5 wt % talc; and 0.5 to 3 wt % additives based on the total weight of the polypropylene composition, the base polymer mix containing a XCU fraction and a XCS fraction and the XCU fraction being present in an amount of 91 to 98 wt % and the XCS fraction being present in an amount of 2 to 9 wt %; the base polymer mix containing a comonomer content of less than 5 wt % with respect to the base polymer mix; the talc having a d50 median particle size of 1.0 to 3.0 μm when measured according to ISO 13317-3 15 using a Sedigraph; and the composition having a MFR (230° C./2.16 kg; ISO 1133) of 1 to 10 g/10 min a process for the production of such a polypropylene composition and article comprising said polypropylene composition.

Abstract translation: 本发明涉及由以下组成的聚丙烯组合物：55至79重量％的基础聚合物混合物; 18至44.5重量％的滑石; 和基于聚丙烯组合物的总重量的0.5至3重量％的添加剂，含有XCU级分和XCS级分的基础聚合物混合物，并且XCU级分以91至98重量％的量存在并且XCS部分存在 为2〜9重量％。 所述基础聚合物混合物相对于所述基础聚合物混合物含有小于5重量％的共聚单体含量; 当根据ISO 13317-315使用Sedigraph测量时，滑石粉的d50中值粒径为1.0-3.0μm; 并且所述组合物具有1至10g / 10分钟的MFR（230℃/ 2.16kg; ISO 1133），用于生产这种聚丙烯组合物和包含所述聚丙烯组合物的制品的方法。