公开(公告)号：US11746223B2

公开(公告)日：2023-09-05

申请号：US17583615

申请日：2022-01-25

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Elisabeth Potter ,  Jani Aho ,  Klaus Bernreitner ,  Luc Monnissen ,  Meta Cigon

IPC: C08F2/00 ,  C08F210/06 ,  C08F4/654 ,  C08L23/14 ,  C08F10/06

CPC classification number: C08L23/14 ,  C08F10/06 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2308/00 ,  C08L2314/02

Abstract: The invention relates to a process for producing a polypropylene composition by sequential polymerization the polypropylene composition having an improved balanced combination of high flowability, high stiffness and impact, and high level of optical properties.

公开(公告)号：US20230060604A1

公开(公告)日：2023-03-02

申请号：US17797183

申请日：2021-03-17

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Matthias Hoff

IPC: C08F210/06 ,  C08J5/18 ,  C08F210/08 ,  C08L23/14

Abstract: Blown films, especially monolayer blown films, of high stiffness, the blown films comprising at least 95.0 wt % of a specific propylene-1-butene random copolymer.

公开(公告)号：US20230001674A1

公开(公告)日：2023-01-05

申请号：US17781069

申请日：2020-12-01

Applicant: BOREALIS AG

Inventor： Stefan Ortner ,  Peter Niedersuess ,  Luca Boragno ,  Markus Gahleitner

IPC: B32B27/08 ,  B32B27/32 ,  B32B7/027 ,  B32B27/18 ,  C08L23/14

Abstract: The present invention relates to a multilayer film comprising at least two outer layers (A) and (C) and at least one core layer (B), at least one of the outer layers (A) and/or (C) comprises component a1), whereas the other outer layer comprises component a1) or a2), whereby component a1) is a terpolymer of propylene, ethylene and one C4 to C10 α-olefin; whereby said terpolymer a1) has an ethylene content in the range of 0.1 to 8.0 wt.-% based on the total weight of the terpolymer a1); a C4 to C10 α-olefin content in the range of 0.1 to 16.0 wt.-% based on the total weight of the terpolymer a1); and a melt flow rate MFR2 measured according to ISO 1133 (230° C., 2.16 kg load) in the range of 0.5 to 12.0 g/10 min; component a2) is a polypropylene having a melting temperature of at least 150° C.; and layer (B) comprises a heterophasic propylene copolymer b), said heterophasic propylene copolymer b) comprises a matrix being a random propylene copolymer b1) and an elastomeric propylene copolymer b2) dispersed in said matrix; whereby the heterophasic propylene copolymer b) has a melt flow rate MFR2 measured according to ISO 1133 (230° C., 2.16 kg load) in the range of 0.3 to 20.0 g/10 min; a xylene cold soluble content (XCS) determined according ISO 16152 (25° C.) in the range of 16.0 to 50.0 wt.-%; and a comonomer content in the range of 11.5 to 21.0 mol-%. In addition, the present invention relates to the use of the multilayer film according to the present invention for soft packaging applications, preferably pouches for food packaging, for medical applications or for pharmaceutical applications.

公开(公告)号：US20220396695A1

公开(公告)日：2022-12-15

申请号：US17773722

申请日：2020-11-02

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Luigi Resconi ,  Markus Gahleitner ,  Klaus Bernreitner ,  Wilfried Töltsch

IPC: C08L23/16 ,  C08L23/12 ,  C08F10/06

Abstract: A heterophasic propylene ethylene copolymer composition having an MFR2 in the range from 1.0 to 55.0 g/10 min and a melting temperature in the range from 155 to 162° C., comprising: i) from 60 to 88 wt.-% of a xylene cold insoluble fraction (XCI) having an intrinsic viscosity iV(XCI) in the range from 1.40 to 2.50 dl/g, an isotactic pentad concentration [mmmm] of more than 97.0% and a content of 2,1-regiodefects in the range from 0.1 to 0.4 mol %, ii) from 12 to 40 wt.-% of a xylene cold soluble fraction (XCS) having an intrinsic viscosity iV(XCS) in the range from 1.80 to 3.20 dl/g and an ethylene content C2(XCS) in the range from 25 to 80 wt.-%, wherein the ratio of the intrinsic viscosities of the two fractions, iV(XCS)/iV(XCI), is in the range from 1.0 to 2.0.

公开(公告)号：US11512189B2

公开(公告)日：2022-11-29

申请号：US17598572

申请日：2020-03-27

Applicant: BOREALIS AG

Inventor： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

IPC: C08L23/06 ,  C08J11/04 ,  C08L23/12

Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

公开(公告)号：US20220275118A1

公开(公告)日：2022-09-01

申请号：US17623670

申请日：2020-06-19

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Pauli Leskinen ,  Klaus Bernreitner ,  Katja Ellen Klimke

IPC: C08F110/06

Abstract: The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a xylene hot insolubles (XHU) fraction in an amount of less than 1.0%, based on the total weight amount of the propylene polymer composition, b) a melting temperature Tm of less than 160° C., c) a crystallization temperature Tc of at least 115° C., and d) a F30 melt strength of from 5.0 to less than 30.0 cN, a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition and the use of said propylene polymer composition for producing an article.

公开(公告)号：US20220258457A1

公开(公告)日：2022-08-18

申请号：US17595840

申请日：2020-06-04

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Manfred Gruenberger

IPC: B32B27/08 ,  B32B27/32 ,  C08L23/14 ,  C08F4/64

Abstract: Multilayer film comprising at least a skin layer, a core layer and an inner layer, whereby the inner layer comprises a single site catalyst derived (SSC) random propylene ethylene copolymer having—a melting temperature (Tm) from 120° C. to 144° C., —a content of units derived from ethylene in an amount of 1.5 to 6.0 wt.-%, —the melting temperature (Tm) fulfilling the following equation Tm

公开(公告)号：US20220186011A1

公开(公告)日：2022-06-16

申请号：US17598494

申请日：2020-03-26

Applicant: BOREALIS AG

Inventor： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

IPC: C08L23/16 ,  C08L23/06 ,  C08L23/12 ,  C08J3/00

Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a C2C3C4 terpolymer. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a C2C3C4 terpolymer for improving the impact-stiffness balance and the morphology of the blend (A).

公开(公告)号：US20220177679A1

公开(公告)日：2022-06-09

申请号：US17598572

申请日：2020-03-27

Applicant: BOREALIS AG

Inventor： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

IPC: C08L23/06 ,  C08J11/04 ,  C08L23/12

Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

公开(公告)号：US20220145058A1

公开(公告)日：2022-05-12

申请号：US17595839

申请日：2020-05-20

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Cornelia Tranninger

IPC: C08L23/16 ,  C08F2/00 ,  C08F4/6592 ,  C08F4/659 ,  C08F210/02 ,  C08F210/06 ,  B29C48/00

Abstract: New C2C3 random copolymers, which combine low sealing initiation temperature (SIT), high hot-tack, low C6-solubles, good optical properties and an improved stiffness/impact balance, which are particularly suited for preparing blown films. The present invention is furthermore related to the manufacture of said copolymers and to their use, as well as to the blown films comprising such C2C3 random copolymers.