公开(公告)号：US10676604B2

公开(公告)日：2020-06-09

申请号：US15767330

申请日：2016-10-21

Applicant: BOREALIS AG

Inventor： Norbert Reichelt ,  Paul De Mink ,  Markus Gahleitner ,  Katja Klimke ,  Dietrich Gloger

IPC: C08L23/12 ,  C08F299/00

Abstract: The invention relates to long-chain branched polypropylene composition (b-PPC) comprising at least one long-chain branched propylene homopolymer or copolymer (b-PP) and at least one linear propylene homopolymer or copolymer (l-PP). The long-chain branched polypropylene composition (b-PPC) being suitable for foam application.

公开(公告)号：US20180298174A1

公开(公告)日：2018-10-18

申请号：US15767330

申请日：2016-10-21

Applicant: BOREALIS AG

Inventor： Norbert Reichelt ,  Paul De Mink ,  Markus Gahleitner ,  Katja Klimke ,  Dietrich Gloger

IPC: C08L23/12

Abstract: The invention relates to long-chain branched polypropylene composition (b-PPC) comprising at least one long-chain branched propylene homopolymer or copolymer (b-PP) and at least one linear propylene homopolymer or copolymer (1-PP). The long-chain branched polypropylene composition (b-PPC) being suitable for foam application.

公开(公告)号：US20200087478A1

公开(公告)日：2020-03-19

申请号：US16467202

申请日：2017-12-28

Applicant: Borealis AG

Inventor： Hermann Braun ,  Norbert Reichelt ,  Andreas Fuchs ,  Alexander Standler ,  Paul De Mink ,  Markus Gahleitner

IPC: C08J9/14 ,  C08J9/16 ,  C08J9/22 ,  C08J7/18 ,  C08J5/18 ,  C08F110/06 ,  C08K5/00 ,  C08K5/14

Abstract: The invention relates to a process for the production of a foam having low organic compounds emissions, to polypropylene foamed products obtainable by the process, and to a process for the manufacture of low organic compounds emission articles comprising a foam for use in cars and food packaging. The process comprises the steps of: a) providing a foam comprising a propylene composition comprising a high melt strength propylene (HMS-PP) homopolymer or copolymer or combinations thereof, said HMS-PP foam having a melt strength of at least 25 cN at a maximum speed of at least 200 mm/s and a melting temperature of at least 135° C. and b) subjecting the HMS-PP foam to a thermal treatment at a temperature Tt which is preferably between 5 and 15° C. below the melting temperature Tm of the HMS-PP for a duration between preferably 1 and 10 minutes.