公开(公告)号：US20210340365A1

公开(公告)日：2021-11-04

申请号：US17273511

申请日：2019-10-02

Applicant: BOREALIS AG

Inventor： Daniela MILEVA ,  Susanne KAHLEN ,  Patrick ROVER ,  Georg GRESTENBERGER ,  Jingbo WANG ,  Klaus BERNREITNER ,  Markus GAHLEITNER

IPC: C08L23/12 ,  C08K5/526 ,  C08K5/134 ,  C08K3/04 ,  C08F110/06 ,  C08J9/00

Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of a polypropylene homopolymer (H-PP1) for reducing the 5stiffness reduction factor of a foamed injection molded article by at least 40 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article and compared to an article comprising the same amount of a polypropylene which has been polymerized in the presence of a Ziegler-Natta catalyst.