公开(公告)号：US20170341267A1

公开(公告)日：2017-11-30

申请号：US15534447

申请日：2015-12-07

Applicant: BOREALIS AG

Inventor： Martina SANDHOLZER ,  Klaus BERNREITNER ,  Hermann BRAUN ,  Hermann PROKSCHI ,  Ulrich SCHREIDER ,  Frank SCHRODER ,  Thomas HAGER ,  Katja KLIMKE ,  Markus GAHLEITNER

IPC: B29B9/06 ,  B29C47/00 ,  C08L23/14 ,  B29B9/12 ,  C08K5/00 ,  C08L23/16 ,  B29B9/16

CPC classification number: B29B9/065 ,  B29B9/12 ,  B29B9/16 ,  B29B2009/165 ,  B29C48/04 ,  C08K5/0083 ,  C08L23/142 ,  C08L23/16 ,  C08L2205/24 ,  C08L2207/02

Abstract: The present invention provides a process for extruding and pelletising a propylene copolymer. The copolymer has a content of comonomer from 5 to 40% by mole, a melt flow rate MFR2 measured at 230° C. under a load of 2.16 kg of from 0.5 to 15 g/10 min and a content of cold xylene soluble material of from 20 to 60% by weight. The process comprises extruding the propylene copolymer through a die plate into an underwater pelletiser and cutting strands of the propylene copolymer into pellets in the underwater pelletiser, wherein the ratio of the mass flow rate of the propylene copolymer to the mass flow rate of the cooling water is from 0.020 to 0.060; and the propylene copolymer comprises a polymeric nucleating agent.

公开(公告)号：US20160347943A1

公开(公告)日：2016-12-01

申请号：US15113907

申请日：2015-02-03

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Pauli LESKINEN ,  Johanna LILJA ,  Markus GAHLEITNER

IPC: C08L23/14

CPC classification number: C08L23/142 ,  C08F210/06 ,  C08L23/16 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2308/00 ,  C08L2314/02 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26

Abstract: The present invention is directed to a new heterophasic propylene copolymer (RAHECO) and an injection molded article comprising the heterophasic propylene copolymer (RAHECO) as well as a thin wall packaging comprising the heterophasic propylene copolymer (RAHECO). The present invention is further directed to the use of the heterophasic propylene copolymer (RAHECO) for improving the toughness of an injection molded article.

Abstract translation: 本发明涉及新的异相丙烯共聚物（RAHECO）和包含异相丙烯共聚物（RAHECO）的注射成型制品以及包含多相丙烯共聚物（RAHECO）的薄壁包装。 本发明还涉及异相丙烯共聚物（RAHECO）用于提高注射成型制品的韧性的用途。