Patents Assigned to Borealis AG
-
Publication number: 20240002559Abstract: The present invention provides a process for recycling propylene-ethylene copolymers to obtain polymers having good optical and mechanical properties, as well as good processability. The invention further provides propylene-ethylene copolymer pellets obtained from the process, articles comprising or consisting of such pellets and the use of the propylene-ethylene copolymer pellets for injection molding applications. The process comprising the steps of (a) polymerizing propylene and ethylene in the presence of a single site catalyst in a continuous polymerization reactor under dynamic conditions, (b) collecting the resulting propylene-ethylene copolymer powders from step (a) to obtain a mixture (M) of propylene-ethylene copolymer powders having a MFR2 (ISO 1133, 230° C., 2.16 kg) in a raffle of from 1.5 to 80.0 g/ 10 min and an ethylene content in a range of from 1.0 to 4.0 wt.Type: ApplicationFiled: September 27, 2021Publication date: January 4, 2024Applicant: Borealis AGInventors: Jingbo WANG, Markus GAHLEITNER, Klaus BERNREITNER, Pauli LESKINEN, Johanna LILJA, Anita LUYTEN
-
Patent number: 11859030Abstract: The present invention relates to a process for producing a heterophasic propylene copolymer (RAHECO) having a xylene cold soluble fraction (XCS) determined according to ISO 16152 (25° C.) of more than 30 wt.-%, a heterophasic propylene copolymer (RAHECO) produced by the process as well as an article, preferably a film, a flexible tube or cable insulation, comprising the heterophasic propylene copolymer (RAHECO).Type: GrantFiled: September 24, 2019Date of Patent: January 2, 2024Assignee: BOREALIS AGInventors: Pauli Leskinen, Jingbo Wang, Markus Gahleitner
-
Patent number: 11851552Abstract: The present invention is directed to a biaxially oriented polypropylene (BOPP) film with improved breakdown strength and to a capacitor comprising an insulation film comprising a layer of the biaxially oriented polypropylene film of the present invention. The present invention is further directed to a process for producing a biaxially oriented polypropylene film. Finally, the present invention is further directed to the use of a biaxially oriented polypropylene film of the present invention as layer of an insulation film of a capacitor. The BOPP film comprises a polypropylene composition, wherein the polypropylene composition comprises a high isotactic homopolymer of propylene and a polymeric ?-nucleating agent. The BOPP film has a dielectric breakdown field strength Eb63.2 of at least 595 kV/mm.Type: GrantFiled: December 20, 2019Date of Patent: December 26, 2023Assignee: Borealis AGInventors: Dietrich Gloger, Hermann Braun, Antonios Gitsas, Davide Tranchida, Franciscus Jacobs, Wolfram Stadlbauer
-
Patent number: 11845857Abstract: The present invention is directed to a polypropylene composition (C) comprising an ?-nucleated heterophasic composition (HECO) comprising a (semi)crystalline polypropylene (PP1), an elastomeric ethylene/propylene copolymer (EPR) and a first ?-nucleating agent (NU1), an impact modifier comprising a polyethylene (PE) being a copolymer of ethylene and a C4-C12 ?-olefin and a second ?-nucleating agent (NU2). The present invention is further directed to a method for preparing said polypropylene composition (C) and an article comprising said polypropylene composition (C). The present invention is also directed to the use of a composition comprising a polyethylene (PE) being a copolymer of ethylene and a C4-C12 ?-olefin and an ?-nucleating agent (NU2) as an impact modifier.Type: GrantFiled: September 10, 2019Date of Patent: December 19, 2023Assignees: ABU DHABI POLYMERS CO. LTD (BOROUGE) L.L.C., BOREALIS AGInventors: Katja Klimke, Hans Jozef Francois Van Cauwenberghe
-
Patent number: 11845836Abstract: Articles comprising a polymer composition, wherein the polymer composition is obtainable by grafting an ethylene copolymer with comonomer units comprising hydrolysable silane groups, wherein the polymer composition shows high gel content and low compression set at ?25° C. These articles have applications in automotive weather-stripping, such as sealing systems for doors, trunks and hoods.Type: GrantFiled: September 30, 2019Date of Patent: December 19, 2023Assignee: BOREALIS AGInventors: Jari-Jussi Ruskeeniemi, Jeroen Oderkerk, Oscar Prieto, Stefan Hellström, Tanja Piel, Daniela Mileva, Floran Prades
-
Patent number: 11834529Abstract: The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a melt flow rate MFR2 (230° C., 2.16 kg) of 0.8 to 6.0 g/10 min b) a xylene hot insolubles (XHU) fraction in an amount of not more than 0.80 wt %, based on the total weight amount of the propylene polymer composition, c) a melting temperature Tm of at least 160.0° C., d) a F30 melt strength of from 5.0 to less than 30.0 cN, and e) a heat distortion temperature (HDT) of at least 108° C., 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.Type: GrantFiled: June 19, 2020Date of Patent: December 5, 2023Assignee: Borealis AGInventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Katja Ellen Klimke, Friedrich Berger
-
Patent number: 11827777Abstract: 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).Type: GrantFiled: September 9, 2019Date of Patent: November 28, 2023Assignee: Borealis AGInventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Peter Niedersüss
-
Patent number: 11827758Abstract: The present invention is directed to an article comprising a fiber reinforced composition (C), said composition comprising a propylene polymer (PP), an elastomeric ethylene copolymer (E) and fibers (F).Type: GrantFiled: December 4, 2018Date of Patent: November 28, 2023Assignee: Borealis AGInventors: Michael Jerabek, Wolfgang Stockreiter, Thomas Lummerstorfer
-
Patent number: 11827774Abstract: The invention provides a polymer composition comprising a low density polyethylene (LDPE); polypropylene (PP) and a compatibiliser. The invention also relates to cables comprising said polymer composition and the use of the polymer composition in the manufacture of an insulation layer of cable.Type: GrantFiled: December 18, 2018Date of Patent: November 28, 2023Assignee: BOREALIS AGInventors: Per-Ola Hagstrand, Thomas Gkourmpis
-
Patent number: 11827733Abstract: The present invention relates to a process for producing solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50vol) of 5 to 500 ?m the process comprising steps I. providing a solution of a mixture of Group 2 metal compounds of i) a solution of a Group 2 metal dihalide and ii) at least one Group 2 metal alkoxide of the Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005) II. contacting the solution of the mixture of Group 2 metal compounds of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005), and III.Type: GrantFiled: December 19, 2019Date of Patent: November 28, 2023Assignee: BOREALIS AGInventors: Timo Leinonen, Peter Denifl, Alexander Reznichenko, Frank Schröder
-
Patent number: 11814509Abstract: New polypropylene composition, which combines low sealing initiation temperature (SIT), high hot-tack and good optical properties, like low haze, the use of such polypropylene composition and articles made therefrom.Type: GrantFiled: April 9, 2019Date of Patent: November 14, 2023Assignee: BOREALIS AGInventors: Markus Gahleitner, Jingbo Wang, Friedrich Berger, Jani Aho
-
Patent number: 11807655Abstract: Claimed are metallocene-complexes of formula (I) [formula (I?)] wherein M is Hf or Zr, L is a bridge comprising 1-2 C- or Si-atoms, The other variables are as defined in the claims.Type: GrantFiled: December 21, 2017Date of Patent: November 7, 2023Assignee: BOREALIS AGInventors: Wilfried Toeltsch, Simon Schwarzenberger, Ismo Lehtiniemi, Luigi Resconi, Ville Virkkunen, Noureddine Ajellal, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
-
Publication number: 20230340240Abstract: The present invention relates to a polyethylene composition comprising a base resin which comprises a first ethylene homo- or copolymer fraction (A) having a melt flow rate MFR2 from 1 to 150 g/10 min, preferably from 5 to 100 g/10 min, and a second ethylene copolymer fraction (B) having a content of units derived from a comonomer from 0.30 to 1.00 mol %, preferably of from 0.40 to 0.85 mol % and more preferably of from 0.45 to 0.70 mol %, wherein fraction (A) has a lower molecular weight than fraction (B) and wherein fraction (B) is present in an amount of from 45 to 70 wt. %, preferably 47 to 67 wt. %, more preferably 49 to 65 wt. %, even more preferably 50 to 62 wt. % based on the total weight of the base resin; and wherein the polyethylene composition has a melt flow rate MFR5 from 0.10 to 0.35 g/10 min, preferably from 0.10 to 0.25 g/10 min and a strain hardening modulus from 50 to 150 MPa.Type: ApplicationFiled: July 7, 2021Publication date: October 26, 2023Applicant: Borealis AGInventors: Andrey Buryak, Victor Sumerin, Anna Maria Hartl
-
Patent number: 11783960Abstract: The invention relates to power cable polymer composition which comprises a thermoplastic polyethylene having a chlorine content which is less than X, wherein X is 10 ppm, a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.Type: GrantFiled: January 27, 2021Date of Patent: October 10, 2023Assignee: BOREALIS AGInventors: Villgot Englund, Per-Ola Hagstrand, Virginie Eriksson, Annika Smedberg
-
Patent number: 11760067Abstract: The present invention relates to a multilayer element (LE), the use of the multilayer element (LE) for producing an article, an article comprising multilayer element (LE), a layer element of at least two layers, the use of the polymer composition of the invention to produce a multilayer element, as well as to a process for producing the multilayer element (LE) and an article thereof.Type: GrantFiled: January 18, 2018Date of Patent: September 19, 2023Assignee: Borealis AGInventors: Anh Tuan Tran, Jeroen Oderkerk, Francis Costa, Leonardus Welzen, Udo Wahner, Denis Yalalov, Qizheng Dou
-
Patent number: 11756700Abstract: A crosslinkable and crosslinked polymer composition containing a low density polyethylene (LDPE) homopolymer or low density polyethylene (LDPE) copolymer has excellent direct current (DC) electrical properties. The crosslinked polymer composition has an electrical conductivity of 150 fS/m or less, when measured at 70° C. and a 30 kV/mm mean electric field from a non-degassed, 1 mm thick plaque sample of the crosslinked polymer composition when measured according to a direct current (DC) conductivity method. A cable can be surrounded by at least one layer of the polymer composition.Type: GrantFiled: October 21, 2019Date of Patent: September 12, 2023Assignee: Borealis AGInventors: Ulf Nilsson, Annika Smedberg, Alfred Campus
-
Patent number: 11752743Abstract: 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<156° C.?[5.2×C2 content in wt.-%]° C. wherein C2 content stands for the content of units derived from ethylene; and —a xylene cold soluble content (ISO 16152, 1st ED, 2005 Jul. 1; 25° C.) of preferably below 30 wt.-% wherein the multilayer film is free of phthalic acid esters as well as decomposition products thereof.Type: GrantFiled: June 4, 2020Date of Patent: September 12, 2023Assignee: BOREALIS AGInventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Manfred Gruenberger
-
Patent number: 11753486Abstract: 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: GrantFiled: December 20, 2018Date of Patent: September 12, 2023Assignee: BOREALIS AGInventors: Alexander Reznichenko, Jari-Jussi Ruskeeniemi, Joseph Thorman, Xiao Dong Chen, Victor Sumerin
-
Patent number: 11746224Abstract: 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 %.Type: GrantFiled: May 7, 2019Date of Patent: September 5, 2023Assignee: BOREALIS AGInventors: Markus Gahleitner, Jingbo Wang, Klaus Bernreitner, Pauli Leskinen, Johanna Lilja
-
Patent number: 11746223Abstract: 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.Type: GrantFiled: January 25, 2022Date of Patent: September 5, 2023Assignee: BOREALIS AGInventors: Jingbo Wang, Markus Gahleitner, Elisabeth Potter, Jani Aho, Klaus Bernreitner, Luc Monnissen, Meta Cigon