公开(公告)号：US20210395503A1

公开(公告)日：2021-12-23

申请号：US17288668

申请日：2019-10-23

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Kluas Bernreitner

IPC: C08L23/12 ,  C08K5/01 ,  C08K5/00 ,  C08K5/1575 ,  C08K5/526 ,  A61L2/08

Abstract: The present invention is directed to a polymer composition (C) comprising a first propylene homopolymer (H-PP), at least one hydrocarbon oil, at least one nucleating agent and at least one antioxidant, a moulded article formed from said polymer composition, a process for gamma-ray sterilization of said moulded article and uses of hydrocarbon oil in said polymer composition for improving resistance to gamma-ray radiation and reducing discoloration after gamma-ray sterilization in said polymer composition.