Patents Assigned to Borealis AG
  • Publication number: 20240327630
    Abstract: The present disclosure relates to a metallocene-catalysed multimodal polyethylene copolymer, to the use of the multimodal copolymer of ethylene in film applications and to a film including the polymer composition.
    Type: Application
    Filed: August 4, 2022
    Publication date: October 3, 2024
    Applicant: BOREALIS AG
    Inventors: Jingbo WANG, Friedrich BERGER, Jani AHO
  • Patent number: 12104001
    Abstract: The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 ?m generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: October 1, 2024
    Assignee: BOREALIS AG
    Inventors: Alexander Reznichenko, Jari-Jussi Ruskeeniemi, Joseph Thorman, Xiao Dong Chen, Victor Sumerin
  • Patent number: 12104049
    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).
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 1, 2024
    Assignee: BOREALIS AG
    Inventors: Susanne Kahlen, Hermann Braun, Yi Liu, Markus Gahleitner, Gerhard Hubner
  • Patent number: 12084564
    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.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: September 10, 2024
    Assignee: BOREALIS AG
    Inventors: Daniela Mileva, Susanne Kahlen, Patrick Rover, Georg Grestenberger, Jingbo Wang, Klaus Bernreitner, Markus Gahleitner
  • Patent number: 12084565
    Abstract: Composition comprising a heterophasic propylene copolymer with low melt flow rate and rather low amount of xylene cold solubles and a recycled polymer composition being rich in polypropylene.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: September 10, 2024
    Assignee: Borealis AG
    Inventors: Franz Ruemer, Luca Boragno, Stefan Schiesser, Guenter Dreiling, Christian Hollsten, Siegfried Liedauer, Andrei Ollikainen, Thierry Pezard
  • Patent number: 12084566
    Abstract: Mixed-plastics polypropylene blend including mainly polypropylene being benzene free with defined CIELAB color.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: September 10, 2024
    Assignee: Borealis AG
    Inventors: Tuan Anh Tran, Susana Lopes Filipe, Andreas Nagl, Doris Machl, Andreas Rössler-Czermak
  • Patent number: 12084567
    Abstract: The present invention relates to a polypropylene based composition comprising: (A) from 40.0 to 85.0 wt % of a heterophasic propylene copolymer having a content of xylene cold soluble (XCS) fraction in the range of 15 wt % to 35 wt %, based on the total weight of the heterophasic propylene copolymer; (B) from 5.0 to 15.0 wt % of a random copolymer of propylene with comonomer units selected from ethylene and alpha-olefins having from 4 to 12 carbon atoms which has been polymerized in the presence of a single-site catalyst system and has a melting temperature Tm as measured in differential scanning calorimetry (DSC) of less than 140° C.; (C) from 5.0 to 25.0 wt % of an ethylene copolymer with alpha-olefin comonomer units having from 4 to 12 carbon atoms with a density of from 850 kg/m3 to 900 kg/m3; and (D) from 5.0 to 25.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: September 10, 2024
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Klaus Bernreitner, Daniela Mileva, Georg Grestenberger, Markus Gahleitner
  • Publication number: 20240287224
    Abstract: The present disclosure relates to a metallocene-catalysed multimodal polyethylene copolymer, and to use of the multimodal copolymer of ethylene in film applications, and to a film including a polymer composition of the disclosure.
    Type: Application
    Filed: June 23, 2022
    Publication date: August 29, 2024
    Applicant: BOREALIS AG
    Inventors: Qizheng DOU, Friedrich BERGER, Matthias HOFF
  • Patent number: 12071558
    Abstract: The present invention relates a photovoltaic module comprising a protective front layer element, an encapsulation layer element, a photovoltaic cell element and a protective back layer element, whereby at least one of the protective elements comprises glass; wherein the encapsulation layer element comprises a polymer composition (I) comprising at least the following components: (A) 97.00 to 99.99 wt.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: August 27, 2024
    Assignee: BOREALIS AG
    Inventors: Stefan Hellström, Francis Costa, Bert Broeders, Jeroen Oderkerk
  • Patent number: 12071493
    Abstract: PP/UHMW-PE (Polypropylene-Ultrahigh-Molecular-Weight-Polyethylene) composition having: —a melting temperature Tm in the range of 125 to 150° C. (DSC, ISO 11357, Part 3), —an MFR2 of 0.15 to 0.60 g/10 min (2.16 kg, 230° C., IS01133), —units derived from 1-hexene in an amount of at least 1.80 wt.-%, and —a XS according to IS016152 of less than 5.0 wt.-% all weight percentages with respect to the total PP/UHMW-PE composition.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: August 27, 2024
    Assignee: BOREALIS AG
    Inventors: Pauli Leskinen, Jingbo Wang, Markus Gahleitner, Klaus Bernreitner
  • Publication number: 20240262969
    Abstract: Monolayer blown films including a specific blend of Ziegler-Natta catalysed linear low density polyethylene (znLLDPE) and a specific multimodal metallocene catalysed LLDPE, with well-balanced mechanical properties, especially dart drop (impact strength) and tensile modulus.
    Type: Application
    Filed: July 5, 2022
    Publication date: August 8, 2024
    Applicant: BOREALIS AG
    Inventors: Jingbo WANG, Friedrich BERGER, Jani AHO
  • Patent number: 12049552
    Abstract: The present invention is directed to a polyolefin composition which provides improved contrast of laser marks. It is suitable for many applications where precise marking of a molded article made of a polyolefin composition is required, e.g. as outer layer of a wire or cable or in automotive applications. The polyolefin composition of the present invention comprises a polyolefin, carbon black in an amount of 0.25 to 1.0 wt % and an optical brightener in an amount of 0.001 to 0.1 wt %. The present invention is further directed to a molded article comprising the polyolefin composition of the present invention. Further on, the present invention is directed to the use of the polyolefin composition of the present invention as an outer layer of a cable. Finally, the present invention is directed to a method of inducing print on a molded article by laser printing.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: July 30, 2024
    Assignee: BOREALIS AG
    Inventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa
  • Patent number: 12048921
    Abstract: The present invention relates to a method for transporting polyolefin particles in a polymer conveying system, comprising the steps of a) Subjecting the polyolefin particles to moist conveying gas to produce wetted polyolefin particles; b) Transporting the wetted polyolefin particles through at least one conveying line; and c) Controlling the amount of moisture in the conveying gas of the polymer conveying system as such that at the end point of the at least one conveying line the relative humidity of the conveying gas (RHCG) is 40% to 100%, the use of said method in an in-plant polymer conveying system, the use of said method for improving dust and/or angel hair removal in polymer conveying systems and the use of said method for increasing conveying capacity of polyolefin particles with a density of from less than 850 to 910 kg/m3.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 30, 2024
    Assignee: BOREALIS AG
    Inventors: Jussi Laurell, Jenni Valonen, Eero Partanen, Henry Sleijster, Richard Havenaar
  • Patent number: 12043687
    Abstract: The present invention is concerned with a process for polymerizing ethylene or copolymerizing ethylene and at least one alpha-olefin comonomer in the presence of a supported polymerization catalyst in a multi-stage process in which the last polymerization stage is a gas phase reactor, the use of said process for reducing particle carry-over in the last polymerization stage and the use of a supported polymerization catalyst with a certain median particle size to polymerize an ethylene homo- or copolymer in said multi-stage process with a span of its particle size distribution which can be predicted from the median particle size of the catalyst.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 23, 2024
    Assignee: Borealis AG
    Inventors: Apostolos Krallis, Vasileios Kanellopoulos, Pascal Castro, Vuokko Ojanperä, Kumudini Jayaratne
  • Patent number: 12043728
    Abstract: A heterophasic copolymer composition obtained by a process comprising polymerising in multiple steps and multiple polymerisation reactors propylene monomer and a comonomer selected from ethylene, alpha-olefins having 4 to 10 carbon atoms and their mixtures, in the presence of an olefin polymerisation catalyst comprising a solid catalyst component and a co-catalyst, wherein the solid catalyst component comprises titanium, magnesium, halogen and an internal donor of the formula (I): wherein R1 and R2 are the same or different being a linear or branched C1-C12-alkyl group and R is hydrogen or a linear, branched or cyclic C1 to C12-alkyl.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: July 23, 2024
    Assignee: BOREALIS AG
    Inventors: Pauli Leskinen, Johanna Lilja, Jingbo Wang, Markus Gahleitner
  • Publication number: 20240209164
    Abstract: Multilayer blown film comprising at least two layers, i.e. one sealing layer (SL), said one sealing layer (SL) comprising a metallocene catalyzed linear low density polyethylene (mLLDPE), and at least one base layer (BL) or core layer (CL), said base layer (BL) or core layer (CL) containing a metallocene catalyzed bimodal propylene-1-butene copolymer (mC3C4).
    Type: Application
    Filed: March 17, 2021
    Publication date: June 27, 2024
    Applicant: BOREALIS AG
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen
  • Patent number: 12018102
    Abstract: The present invention relates to a process for polymerizing at least one olefin in gas phase in a fluidized bed in a polymerization reactor having a top zone of a generally conical shape as such that the equivalent cross-sectional diameter is monotonically decreasing with respect to the flow direction of the fluidization gas, a middle zone in direct contact with and below said top zone of a generally cylindrical shape and a bottom zone in direct contact and below said middle zone and of a generally conical shape as such that the equivalent cross-sectional diameter is monotonically increasing with respect to the flow direction of the fluidization gas, comprising the steps of: a) introducing a first stream of fluidization gas into the bottom zone; b) polymerizing at least one olefin in the presence of a polymerization catalyst in the fluidized bed formed by particles of a polymer of the at least one olefin suspended in an upwards flowing stream of the fluidization gas in the middle zone; c) withdrawing a second
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: June 25, 2024
    Assignee: Borealis AG
    Inventors: Apostolos Krallis, Vasileios Kanellopoulos, Erno Elovainio, Klaus Nyfors
  • Publication number: 20240199838
    Abstract: A process for the separation of at least one polyolefin from a product stream originating from a polyolefin recycling process, wherein the product stream comprises the at least one polyolefin and a solvent, the process comprising the steps of separating the product stream into a polyolefin-lean stream and a polyolefin-rich stream; separating the polyolefin-rich stream into a first polyolefin-lean vapor stream and a first condensed polyolefin-rich stream; separating the first condensed polyolefin-rich stream into a last polyolefin-lean vapor stream and a last condensed polyolefin-rich stream.
    Type: Application
    Filed: April 13, 2022
    Publication date: June 20, 2024
    Applicant: BOREALIS AG
    Inventors: Mohammad AL-HAJ ALI, Henry SLEIJSTER
  • Patent number: 12012504
    Abstract: The invention provides a process for the preparation of a multimodal high density polyethylene (HDPE) having a melt flow rate (MFR2) of 0.1 to 4.0 g/10 min, said process comprising: (i) polymerising ethylene in a first polymerisation stage in the presence of a Ziegler-Natta catalyst to prepare a first ethylene homopolymer having a MFR2 from 10 to 500 g/10 min; (ii) polymerising ethylene in a second polymerisation stage in the presence of said catalyst and said first ethylene homopolymer to prepare an ethylene homopolymer mixture comprising said first ethylene homopolymer and a second ethylene homopolymer, said mixture having a MFR2 from 50 to 1000 g/10 min; and (iii) polymerising ethylene and at least one alpha-olefin comonomer in a third polymerisation stage in the presence of said catalyst and said ethylene homopolymer mixture to prepare said multimodal HDPE.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 18, 2024
    Assignee: BOREALIS AG
    Inventors: Anh Tuan Tran, Alexandra Romina Albunia, Joy Jie Cheng, Joseph Thorman, John Jamieson, Ravindra Tupe
  • Publication number: 20240191052
    Abstract: A solvent based recycling process for recycling waste polymer material, the waste polymer material comprising at least one polyolefin, the process comprising the steps of obtaining the waste polymer material comprising the at least one polyolefin; contacting the waste polymer material with at least one dissolving solvent yielding a slurry stream of polymer solution and undissolved solids; screening the slurry stream yielding the undissolved solids and a stream of the polymer solution; vapor-liquid separating the stream of the polymer solution into a polymer-lean vapor stream and a polymer-rich condensed stream; recovering the at least one polyolefin from the polymer-rich condensed stream; wherein the at least one dissolving solvent has a boiling point temperature at 1 bar of equal to or more than 70° C.
    Type: Application
    Filed: April 13, 2022
    Publication date: June 13, 2024
    Applicant: BOREALIS AG
    Inventors: Mohammad AL-HAJ ALI, Noureddine AJELLAL, Mubashar SATTAR, Erno ELOVAINIO, Henry SLEIJSTER