公开(公告)号：US20240002555A1

公开(公告)日：2024-01-04

申请号：US18253143

申请日：2021-11-23

Applicant: BOREALIS AG

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

IPC: C08F10/06 ,  C08L23/14

CPC classification number: C08F10/06 ,  C08L23/142 ,  C08L2205/025 ,  C08L2205/24 ,  C08L2308/00 ,  C08L2314/02 ,  C08L2314/06 ,  C08L2205/035

Abstract: A process for the preparation of isotactic propylene polymer compositions involving the polymerisation of propylene and optionally one or more comonomers selected from ethylene and α-olefins containing 4 to 12 carbon atoms in one or more reaction steps in the present of a catalyst system comprising 45 to 99 wt.-% of a metallocene catalyst and 1 to 55 wt.-% of a Ziegler Natta catalyst having a non-phthalate internal donor and having been prepolymerised with a monomer (I) of the general formula CH2═CH—CHR1R2 (I) wherein R1 and R2 are either individual alkyl groups with one or more carbon atoms or form an optionally substituted saturated, unsaturated or aromatic ring or a fused ring system containing 4 to 20 carbon atoms.

公开(公告)号：US11827777B2

公开(公告)日：2023-11-28

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

CPC classification number: C08L23/142 ,  C08F2/001 ,  C08F4/65927 ,  C08F210/06 ,  C08F210/14 ,  C08L2201/10 ,  C08L2203/162 ,  C08L2205/025

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：US20230203334A1

公开(公告)日：2023-06-29

申请号：US17923366

申请日：2021-05-26

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Peter Niedersuess ,  Auli Nummila-Pakarinen

IPC: C09D123/12 ,  B05D1/26

CPC classification number: C09D123/12 ,  B05D1/265

Abstract: The present invention relates to use of a polypropylene composition comprising a polypropylene having—a melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 of 10 to 40 g/10 min, —a melting temperature Tm as determined by DSC according to ISO 11357 of 149 to 160° C., and—a molecular weight distribution MWD of 2.4 to 4.5 as determined by GPC, for extrusion coating of an article, to a process for extrusion coating of an article and to an extrusion coated article.

公开(公告)号：US20230183431A1

公开(公告)日：2023-06-15

申请号：US17925045

申请日：2021-05-17

Applicant: Borealis AG

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

IPC: C08J5/04 ,  C08F4/6592 ,  C08F10/06 ,  C08L23/12

CPC classification number: C08J5/043 ,  C08F4/65927 ,  C08F10/06 ,  C08L23/12 ,  C08J2323/12

Abstract: Fiber reinforced composite comprising a polypropylene with high melting temperature and narrow molecular weight distribution.

公开(公告)号：US20230096321A1

公开(公告)日：2023-03-30

申请号：US17791938

申请日：2021-01-15

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Hermann Braun

IPC: C08L23/12 ,  C08L23/08

Abstract: A polypropylene composition (C) obtainable by blending: a) 50.0 to 95.0 wt.-% of a heterophasic propylene copolymer (HECO) defined by its crystalline fraction content (78.0 to 92.0 wt.-%), soluble fraction content (8.0 to 22.0 wt.-%), C2 content of said soluble fraction (15.0 to 30.0 wt.-%) and intrinsic viscosity of the soluble fraction (1.80 to 3.50 dl/g), b) 5.0 to 50.0 wt.-% of a blend (A) comprising polypropylene and polyethylene in a weight ratio of from 9:1 to 13:7, wherein blend (A) is a recycled material recovered from a waste plastic material derived from post-consumer and/or post-industrial waste; wherein the polypropylene composition (C) has a melt flow rate (MFR2) of 20.0 to 70.0 g/10 min.

公开(公告)号：US11447623B2

公开(公告)日：2022-09-20

申请号：US16626083

申请日：2018-06-27

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

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：US20210355307A1

公开(公告)日：2021-11-18

申请号：US17278028

申请日：2019-10-02

Applicant: BOREALIS AG

Inventor： Daniela Mileva ,  Susanne Kahlen ,  Patrick Rover ,  Georg Grestenberger ,  Jingbo Wang ,  Klaus Bernreitner ,  Markus Gahleitner

IPC: C08L23/12 ,  C08J9/04 ,  C08J9/00

Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of said polypropylene composition for reducing the stiffness reduction factor of a foamed injection molded article by at least 200 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article.

公开(公告)号：US20210054181A1

公开(公告)日：2021-02-25

申请号：US17040698

申请日：2019-04-09

Applicant: BOREALIS AG

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

IPC: C08L23/14

Abstract: The present invention relates to bimodal polypropylene random copolymers comprising ethylene as comonomer and articles made thereof, having an improved resistance against γ-irradiation and are especially suitable for application in the medical, pharmaceutical or diagnostic field.

公开(公告)号：US20210047502A1

公开(公告)日：2021-02-18

申请号：US16769510

申请日：2018-12-18

Applicant: BOREALIS AG

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

IPC: C08L23/14

Abstract: The invention relates to a new soft heterophasic propylene copolymer with increased melting temperature, improved stiffness and optical properties, as well as the process by which the heterophasic propylene copolymer is produced. Further the present invention is directed to articles made of the inventive heterophasic propylene copolymer, particularly to blow moulded, extrusion blow moulded or injection moulded articles and their use in e.g. medical, pharmaceutical or alimentary applications.

公开(公告)号：US20210017368A1

公开(公告)日：2021-01-21

申请号：US16982915

申请日：2019-04-09

Applicant: BOREALIS AG

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

IPC: C08L23/14 ,  C08L23/08 ,  C08F2/00 ,  C08F2/02 ,  C08F2/34 ,  C08F110/06

Abstract: The application provides a bimodal polypropylene random copolymer with good response to nucleating agents, increased crystallization temperature, good mechanical and optical properties, as well as low amounts of extractables and good processability in the sense of high Melt Flow Rate. The present invention further relates to articles made thereof, and the use of the bimodal polypropylene random copolymer for specific applications. It also relates to a process for the preparation of said bimodal polypropylene random copolymer.