公开(公告)号：US20230331881A1

公开(公告)日：2023-10-19

申请号：US18001674

申请日：2021-06-14

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Georg Grestenberger ,  Ramesh Kumar Selvasankar

IPC: C08F110/06 ,  C08K3/012 ,  C08K5/52 ,  C08K5/098 ,  C08F2/34 ,  C08F2/02 ,  C08F2/00 ,  C08J3/12 ,  C08F4/6592

CPC classification number: C08F110/06 ,  C08K3/012 ,  C08K5/52 ,  C08K5/098 ,  C08F2/34 ,  C08F2/02 ,  C08F2/001 ,  C08J3/12 ,  C08F4/65927 ,  C08J2323/12

Abstract: Process for producing a polypropylene comprising the steps of polymerizing the polypropylene in the presence of a metallocene catalyst, visbreaking said polypropylene and subsequently aerating the polypropylene at elevated temperature.