公开(公告)号：US20220135779A1

公开(公告)日：2022-05-05

申请号：US17273687

申请日：2019-08-07

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Peter NIEDERSÜSS ,  Pauli LESKINEN

IPC: C08L23/12 ,  C08L23/20 ,  C08L23/08 ,  C08F4/6592 ,  C08L23/14 ,  B29C48/40 ,  B29C48/00 ,  B29C48/08

Abstract: The present invention is directed to a polypropylene composition (P) comprising a copolymer (C) of propylene and 1-hexene comprising a first random propylene copolymer (A) of propylene and a 1-hexene, and a second random propylene copolymer (B) of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer (A) as well as a plastomer (PL) being an elastomeric copolymer of ethylene and at least one C4 to C10 α-olefin. Further, the present invention is directed to an article comprising said polypropylene composition (P) and the use of said polypropylene composition (P) as a sealing layer in a multi-layer film.

公开(公告)号：US20210347971A1

公开(公告)日：2021-11-11

申请号：US17273711

申请日：2019-09-09

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Peter NIEDERSÜSS

IPC: C08L23/14 ,  C08F210/06 ,  C08F210/14 ,  C08F4/6592 ,  C08F2/00

Abstract: The present invention is directed to a polypropylene composition (P) comprising a first random propylene copolymer (A) and a second random propylene copolymer (B), said first random propylene copolymer (A) and said second random propylene copolymer (B) being copolymers of propylene and 1-hexene. Further, the present invention is directed to a blown film comprising said polypropylene composition (P).

公开(公告)号：US20210339509A1

公开(公告)日：2021-11-04

申请号：US17273372

申请日：2019-09-20

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Peter NIEDERSÜSS

IPC: B32B27/08 ,  B32B27/32 ,  C08L23/14 ,  C08L23/08 ,  C08F210/06

Abstract: Multilayer film of at least three layers, one core layer and at least one sealing layer wherein the sealing layer comprises a linear low density polyethylene having a density in the range of 0.915 to 0.925 g/cm3, and the core layer comprises a propylene 1-hexene copolymer, said copolymer has an 1-hexene content in the range of 2.0 to 5.0 wt.-% and a xylene soluble fraction in the range of 0.3 to 15.0 wt.-%.

公开(公告)号：US20210332227A1

公开(公告)日：2021-10-28

申请号：US17273700

申请日：2019-09-09

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Peter NIEDERSÜSS

IPC: C08L23/14 ,  C08J5/18 ,  C09K3/10

Abstract: The present invention is directed to a polypropylene composition (P) comprising a bimodal copolymer of propylene and 1-hexene prepared in the presence of a metallocene catalyst, said bimodal copolymer having a melt flow rate MFR2 in the range of 4.0 to 20.0 g/10 min. Further, the present invention is directed to a method for preparing the copolymer (C) and an article comprising said polypropylene composition (P).