公开(公告)号：US11254811B2

公开(公告)日：2022-02-22

申请号：US16637386

申请日：2018-08-23

Applicant: BOREALIS AG

Inventor： Minna Aarnio-Winterhof ,  Markus Gahleitner ,  Jingbo Wang ,  Karlheinz Friedrich

IPC: C08F210/06 ,  C08L23/14

Abstract: The present invention is directed towards random-heterophasic propylene copolymers with a specific ratio of stiffness to impact balance and specific relation between glass transition temperature and comonomer content. The invention is further directed to articles comprising said random-heterophasic propylene copolymer and their use.

公开(公告)号：US11230638B2

公开(公告)日：2022-01-25

申请号：US17049799

申请日：2019-05-07

Applicant: BOREALIS AG

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

IPC: C08L23/14 ,  C08J5/18

Abstract: The present invention is directed to a heterophasic polypropylene composition of high transparency based on excellent compatibility of the propylene 1-hexene random copolymer used as matrix with different types of external modifiers dispersed within the matrix. The present invention is further directed to a process for producing such a polypropylene composition and to a film, in particular a cast film, obtained from such a polypropylene composition. The polypropylene composition comprising a blend of a propylene copolymer comprising 2.5 to 12.0 wt % of 1-hexene as a comonomer, and having a melt flow rate MFR2 of 0.1 to 100 g/10 min, and an ethylene homo- or copolymer having a melt flow rate MFR2 of 0.05 to 30.0 g/10 min and a density of 850 to 920 kg/m3, wherein the melt flow rate MFR2 of the polypropylene composition is from 1.0 to 12.0 g/10 min.

公开(公告)号：US11230637B2

公开(公告)日：2022-01-25

申请号：US16496191

申请日：2018-03-30

Applicant: BOREALIS AG

Inventor： Markus Gahleitner ,  Jingbo Wang ,  Friedrich Berger

IPC: C08L23/14

Abstract: Soft polypropylene composition with improved optical and mechanical properties and especially improved resistance to steam sterilization, as well as to its manufacture and use and to articles made out of the new composition.

公开(公告)号：US20220017734A1

公开(公告)日：2022-01-20

申请号：US17312758

申请日：2019-12-05

Applicant: BOREALIS AG

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

IPC: C08L23/14 ,  C08J5/18

Abstract: New polypropylene composition which combines low sealing initiation temperature (SIT), low overall migration, good mechanical and optical properties, its use and articles made therefrom.

公开(公告)号：US20210347155A1

公开(公告)日：2021-11-11

申请号：US17273767

申请日：2019-09-19

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Peter Niedersüss

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/18 ,  C08L23/08 ,  C08J5/18 ,  C08L23/14

Abstract: Multilayer film of at least three layers, one core layer and at least one sealing layer wherein 5 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 4.5 to 8.0 wt.-% and a xylene soluble fraction of more than 10.0 wt.-%.

公开(公告)号：US11098141B2

公开(公告)日：2021-08-24

申请号：US16063572

申请日：2016-12-19

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Katja Klimke ,  Juliane Braun ,  Pauli Leskinen

IPC: C08F110/06 ,  C08L23/14 ,  C08K5/00 ,  C08F4/649 ,  C08F4/643 ,  C08F2/00

Abstract: Moulded articles comprising a polypropylene homopolymer with rather high melt flow rate, high stiffness, improved optical properties and an advantageous balance between stiffness and optical properties.

公开(公告)号：US20210253839A1

公开(公告)日：2021-08-19

申请号：US17049386

申请日：2019-05-07

Applicant: BOREALIS AG

Inventor： Markus Gahleitner ,  Jingbo Wang ,  Klaus Bernreitner ,  Pauli Leskinen ,  Johanna Lilja

IPC: C08L23/14

Abstract: The present invention is directed to a heterophasic polypropylene composition with improved sterilization resistance and optical properties for blow molding applications, in particular for use in the blow-fill-seal process for preparing bottles. The present invention is further directed to a process for producing such a polypropylene composition using a single-site catalyst and to a container produced from such a polypropylene composition by blow molding, like a bottle, in particular a blow-fill-seal bottle, with improved haze before and after sterilization. The polypropylene composition comprises a blend of a propylene copolymer comprising 2.5 to 12.0 wt % of 1-hexene as a comonomer, and having a melt flow rate MFR2 of 0.5 to 20.0 g/10 min, and an ethylene homo- or copolymer having a melt flow rate MFR2 of 0.05 to 30.0 g/10 min and a density of 850 to 940 kg/m3, wherein the xylene cold solubles (XCS) content of the polypropylene composition is from 5.0 to 30.0 wt %.

公开(公告)号：US11015048B2

公开(公告)日：2021-05-25

申请号：US16095212

申请日：2017-05-16

Applicant: BOREALIS AG

Inventor： Markus Gahleitner ,  Jingbo Wang ,  Carl-Gustaf Ek ,  Klaus Bernreitner

IPC: C08L23/16 ,  C08L23/14 ,  C08L23/08 ,  C08F2/00 ,  C08F210/06 ,  C08F210/16

Abstract: The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (RAHECO) and a plastomer (PL) as well as a process for the preparation of said polypropylene composition and a film obtained from said polypropylene composition (C).

公开(公告)号：US10982028B2

公开(公告)日：2021-04-20

申请号：US16305755

申请日：2017-06-12

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Elisabeth Potter

IPC: C08F210/16 ,  C08F210/06 ,  C08F4/649 ,  C08K5/09

Abstract: The present invention relates to nucleated propylene-ethylene-butylene-terpolymers comprising propylene, butylene, and ethylene, having improved stiffness, better impact behaviour and improved optical properties such as low haze, and low amounts of soluble or extractable fractions.

公开(公告)号：US10982022B2

公开(公告)日：2021-04-20

申请号：US16658366

申请日：2019-10-21

Applicant: BOREALIS AG

Inventor： Joachim Fiebig ,  Henk Van Paridon ,  Jingbo Wang ,  Markus Gahleitner

IPC: C08F8/06 ,  C08F8/32 ,  C08F110/06 ,  C08J3/22 ,  C08K5/1575 ,  C08K5/17 ,  C08K5/357 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  D01F6/06 ,  C08F8/50 ,  C08K5/3435 ,  D01D5/088 ,  D01D5/08 ,  D01D5/098 ,  D04H3/007 ,  C08K5/14 ,  D01D1/02 ,  B29K23/00 ,  B29L31/00

Abstract: Synergistic visbreaking composition of peroxide and a hydroxylamine ester for increasing the visbreaking efficiency for polypropylene polymers at melt extrusion temperatures below 250° C. and its use in visbreaking polypropylene. The present invention is furthermore related to the use of such visbroken polypropylene polymers for producing melt blown non-wovens with improved barrier properties.