Patents by Inventor Per-Ola Hagstrand

Per-Ola Hagstrand has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240071646
    Abstract: The invention provides a polymer composition comprising (i) 20 to 84 wt % LDPE; (ii) 15 to 75 wt % of a polypropylene; and (iii) 0.5 to 20 wt % of a styrene block copolymer.
    Type: Application
    Filed: January 10, 2022
    Publication date: February 29, 2024
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Christian MÜLLER, Yingwei OUYANG
  • Publication number: 20240071647
    Abstract: The invention provides a polymer composition comprising (i) 25 to 84 wt % LDPE; (ii) 15 to 74 wt % of a polypropylene; and (iii) 1.0 to 20 wt % of a polyolefin (A) selected from the group consisting of a linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polystyrene and polybutadiene.
    Type: Application
    Filed: January 10, 2022
    Publication date: February 29, 2024
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Christian MÜLLER, Yingwei OUYANG
  • Publication number: 20240062931
    Abstract: A cable, preferably a power cable, comprising one or more conductors surrounded by at least one layer, wherein said layer comprises (i) 15 to 84.5 wt % low density polyethylene (LDPE); (ii) a polypropylene; and (iii) a styrene block copolymer; wherein the weight percentages are based on the layer as a whole.
    Type: Application
    Filed: January 10, 2022
    Publication date: February 22, 2024
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Christian MÜLLER, Yingwei OUYANG, Amir Masoud POURRAHIMI
  • Publication number: 20240052144
    Abstract: The invention provides a polymer composition comprising a) a polyethylene; and b) a conjugated aromatic polymer. 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: Application
    Filed: December 21, 2021
    Publication date: February 15, 2024
    Inventors: Amir Masoud POURRAHIMI, Per-Ola HAGSTRAND, Thomas GKOURMPIS, Christian MÜLLER, Xiangdong XU, Sarath KUMARA
  • Publication number: 20240002647
    Abstract: The present invention relates to a semiconductive composition comprising (A) at least 52.0 wt %, preferably from 55.0 to 90.0 wt %, more preferably from 60.0 to 85.0 wt %, most preferably from 65.0 to 80.0 wt % of a heterophasic propylene copolymer having a matrix phase and an elastomeric phase dispersed in said matrix phase, based on the total weight amount of the semiconductive composition; and (B) from 5.0 to 40.0 wt %, preferably from 10.0 to 38.0 wt %, more preferably from 15.0 to 35.0 wt %, most preferably from 20.0 to 33.0 wt % of carbon black based on the total weight amount of the semiconductive composition, an article comprising said semiconductive composition, preferably a cable comprising an semiconductive layer comprising said semiconductive composition and the use of said semiconductive composition as inner and/or outer semiconductive layer for medium and high voltage cables.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 4, 2024
    Inventors: Thomas Gkourmpis, Katja Ellen Klimke, Per-Ola Hagstrand, Ulf Nilsson, Lars Efraimsson, Anette Johansson
  • Publication number: 20230407066
    Abstract: 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: Application
    Filed: August 30, 2023
    Publication date: December 21, 2023
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS
  • Patent number: 11827774
    Abstract: 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: Grant
    Filed: December 18, 2018
    Date of Patent: November 28, 2023
    Assignee: BOREALIS AG
    Inventors: Per-Ola Hagstrand, Thomas Gkourmpis
  • Patent number: 11783960
    Abstract: 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: Grant
    Filed: January 27, 2021
    Date of Patent: October 10, 2023
    Assignee: BOREALIS AG
    Inventors: Villgot Englund, Per-Ola Hagstrand, Virginie Eriksson, Annika Smedberg
  • Publication number: 20230212377
    Abstract: A multimodal polyethylene composition having a lower molecular weight (LMW) ethylene homo or copolymer component (A) and a higher molecular weight ethylene copolymer component (B); wherein the lower molecular weight component comprises: (ai) a first fraction which comprises an ethylene homo or copolymer of ethylene and one or more C3-10 alpha olefins; and (aii) a N second fraction which comprises a different ethylene homo or copolymer of ethylene and one or more C3-10 alpha olefins; wherein the multimodal polymer composition has a density of 930 kg/m3 or more (ISO1183), such as 938 to 955 kg/m3, an MFR2 (ISO1133 at 190° C. and 2.16 kg load) in the range of 0.05 to 10 g/10 min, and a flexural modulus of up to 800 MPa, such as 300 to 800 MPa (ISO 178:2010).
    Type: Application
    Filed: May 19, 2021
    Publication date: July 6, 2023
    Inventors: Anna HJÄRTFORS, Per-Ola HAGSTRAND, Villgot ENGLUND, Jarmo KELA
  • Publication number: 20230143032
    Abstract: A polymer composition comprising: (i) at least 40 wt % LDPE; (ii) a polypropylene homopolymer; and (iii) a random heterophasic polypropylene copolymer.
    Type: Application
    Filed: May 15, 2020
    Publication date: May 11, 2023
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Christian MÜLLER, Yingwei OUYANG
  • Publication number: 20230131086
    Abstract: The invention provides a polyolefin composition comprising (i) a polyolefin (A) comprising epoxy groups; and (ii) a polyolefin (B) comprising carboxylic acid groups and/or precursors thereof, with the proviso that at least one of (A) and (B) is polyethylene. Preferably one of (A) and (B) is a low density polyethylene (LDPE) and the other is a polypropylene.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 27, 2023
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Oscar PRIETO, Denis YALALOV, Christian MÜLLER, Yingwei OUYANG, Massimiliano MAURI
  • Patent number: 11613633
    Abstract: The invention provides a polymer composition comprising a) a low density polyethylene (LDPE); and b) a conjugated aromatic polymer. 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: Grant
    Filed: June 20, 2017
    Date of Patent: March 28, 2023
    Assignee: Borealis AG
    Inventors: Per-Ola Hagstrand, Thomas Gkourmpis, Antonios Gitsas, Mattias Andersson, Christian Müller
  • Publication number: 20230070748
    Abstract: A polymer composition comprising (i) at least 70 wt% of low-density polyethylene (LDPE) homopolymer or copolymer having a density of 905 to 935 kg/m3 (ISO 1183-2) and an MFR2 of 0.1 to 10 g/10 min (ISO1133 at 190° C., 2.16 kg); (ii) 0.5 to 20 wt % of a high density polyethylene (HDPE) having a density of 940 kg/m3 or more and an MFR2 of 0.1 to 50 g/10 min; and (iii) 0.05 to 10 wt% of an aliphatic, preferably alkyl, functional inorganic nanoparticle filler.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 9, 2023
    Inventors: Thomas GKOURMPIS, Per-Ola HAGSTRAND, Nilsson FRITJOF, Ulf GEDDE, Mikael HEDENQVIST, Richard OLSSON, Mattias KARLSSON, Christian MÜLLER, Roland KÁDÁR, Karolina GASKA
  • Patent number: 11410788
    Abstract: The invention relates to power cable polymer composition which comprises a single site polyethylene (SSPE), 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: Grant
    Filed: December 18, 2015
    Date of Patent: August 9, 2022
    Assignee: BOREALIS AG
    Inventors: Villgot Englund, Per-Ola Hagstrand, Solveig Johansson, Virginie Eriksson
  • Publication number: 20220235211
    Abstract: The invention provides a polymer composition comprising (i) an LDPE; (ii) polyolefin (A) comprising epoxy groups; and (iii) polyolefin (B) comprising carboxylic acid groups and/or precursor thereof.
    Type: Application
    Filed: May 15, 2020
    Publication date: July 28, 2022
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Oscar PRIETO, Denis YALALOV, Christian MÜLLER, Ouyang YINGWEI, Massimiliano MAURI
  • Patent number: 11390699
    Abstract: A polymer composition includes a crosslinked polyolefin with improved DC electrical properties. Prior to crosslinking, the polymer composition includes a polyolefin and peroxide, in which the peroxide is in an amount of less than 35 mmol —O—O— per kilogram of the polymer composition. A cable can be surrounded by at least one layer including the polymer composition.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: July 19, 2022
    Assignee: Borealis AG
    Inventors: Annika Smedberg, Birgitta Kallstrand, Ulf Nilsson, Per-Ola Hagstrand, Villgot Englund, Gustavo Dominguez, Carl-Olof Olsson, Liu Rongsheng, Marc Jeroense
  • Publication number: 20220204734
    Abstract: The invention provides a polymer composition comprising (i) an LDPE; (ii) a polypropylene; (iii) polyolefin (A) comprising epoxy groups; and (iii) polyolefin (B) comprising carboxylic acid groups and/or precursor thereof.
    Type: Application
    Filed: May 15, 2020
    Publication date: June 30, 2022
    Inventors: Per-Ola HAGSTRAND, Thomas GKOURMPIS, Oscar PRIETO, Denis YALALOV, Christian MÜLLER, Yingwei OUYANG
  • Patent number: 11359080
    Abstract: The invention relates to polymer composition comprising a polyolefin (a) and an inorganic filler (b) wherein the polyolefin (a) is obtainable by a high pressure process which process comprises the steps: (i) compressing one or more monomer(s) under pressure in a compressor, using a compressor lubricant for lubrication, (ii) polymerising a monomer optionally together with one or more comonomer(s) in a polymerisation zone, (iii) separating the obtained polyolefin (a) from the unreacted products and recovering the separated polyolefin (a) in a recovery zone, wherein in step (i) the compressor lubricant comprises a non-mineral oil, power cable, for example a direct current (DC) power cable, use of a polymer composition and a process for producing a DC power cable.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: June 14, 2022
    Assignee: BOREALIS AG
    Inventors: Villgot Englund, Per-Ola Hagstrand, Annika Smedberg, Ulf Nilsson
  • Patent number: 11355260
    Abstract: The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to X mmol —O—O—/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol —OH/kg polymer composition, wherein Y1?Y?Y2, X?45 and 0.9*Y+m?X?n?k*Y, wherein Y1 is 0.50 and Y2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (MFR) of less than 1.7, and said polymer composition comprises less than 0.05% by weight (wt %) 2,4-Diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (HV DC) and extra high voltage (EHV DC) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: June 7, 2022
    Assignee: BOREALIS AG
    Inventors: Per-Ola Hagstrand, Villgot Englund, Annika Smedberg
  • Patent number: 11286315
    Abstract: The invention relates to a polyethylene having a melt flow rate at (2.16) kg loading (MFR2), determined according to method ISO1133-1:2011, which MFR2 is A g/10 min and A1?A?A2; wherein A1 is (0.5) and A2 is (1.70), and containing a total amount of vinyl groups which is B vinyl groups per (1000) carbon atoms, and B1?B, wherein B1 is (0.45), determined according to method ASTM D6248-98, a polymer composition, an article being e.g. a cable, e.g. a power cable, and processes for producing a polyethylene, a polymer composition and an article, and an article; useful in different end applications, such as wire and cable (W&C) applications.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 29, 2022
    Assignee: Borealis AG
    Inventors: Annika Smedberg, Emil Hjärtfors, Villgot Englund, Per-Ola Hagstrand, Bernt-Åke Sultan, Thomas Hjertberg