Patents by Inventor Annika Smedberg

Annika Smedberg 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: 20220306845
    Abstract: The invention provides a semiconductive polymer composition comprising (a) a base polymer of ethylene vinyl acetate copolymer, (b) at least 25 wt % carbon black; and (c) 1 to 15 wt % of a polyethylene wax.
    Type: Application
    Filed: September 8, 2020
    Publication date: September 29, 2022
    Inventors: Daniel Nilsson, Niklas Thorn, Annika Smedberg, Fredrik Skogman
  • 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
  • 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
  • Publication number: 20220089857
    Abstract: The present invention relates to a cross-linkable, grafted or non-grafted polymer composition comprising a cross-linkable copolymer containing hydrolysable silane groups. The invention further relates to a crosslinked polymer composition obtained by cross-linking the cross-linkable copolymer containing hydrolysable silane groups and an article comprising the same. The present invention also relates to the use of one or more cross-linking accelerators for accelerating the crosslinking of a cross-linkable copolymer containing hydrolysable silane groups.
    Type: Application
    Filed: December 9, 2019
    Publication date: March 24, 2022
    Inventors: Bernt-Ake SULTAN, Susanne NILSSON, Annika SMEDBERG
  • Publication number: 20210366631
    Abstract: The invention relates to a semiconductive polymer composition comprising a polymer component, a conducting component and a crosslinking agent, wherein the polymer component comprises a polar polyethylene and the crosslinking agent comprises an aliphatic mono- or bifunctional peroxide or, alternatively, a monofunctional peroxide containing an aromatic group, and the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z1?Z?Z2, wherein Z1 is 0.01 and Z2 is 5.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a semiconductive polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.
    Type: Application
    Filed: December 18, 2018
    Publication date: November 25, 2021
    Inventors: Fredrik SKOGMAN, Emil HJÄRTFORS, Annika SMEDBERG, Daniel NILSSON
  • Patent number: 11078312
    Abstract: A cross-linked polymer composition includes a cross-linked polyolefin. Peroxide in an amount of less than 35 mmol —O—O—/kg polymer composition may be included in the polymer composition prior to crosslinking the polyolefin. Suitable polyolefins that can be cross-linked in the polymer composition include an unsaturated LDPE homopolymer and an unsaturated LDPE copolymer of ethylene with one or more comonomers. Such unsaturated LDPE polymer can contain vinyl groups, and the total amount of vinyl groups present in the unsaturated LDPE can be higher than 0.05/1000 carbon atoms. The cross-linked polymer composition can be used, for example, in producing a cross-linkable and cross-linked article such as a cross-linkable and cross-linked direct current (DC) or other type of power cable.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: August 3, 2021
    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: 20210217538
    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: Application
    Filed: January 27, 2021
    Publication date: July 15, 2021
    Inventors: Villgot ENGLUND, Per-Ola HAGSTRAND, Virginie ERIKSSON, Annika SMEDBERG
  • Publication number: 20210163638
    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: Application
    Filed: December 18, 2018
    Publication date: June 3, 2021
    Inventors: Annika SMEDBERG, Emil HJÄRTFORS, Villgot ENGLUND, Per-Ola HAGSTRAND, Bernt-Åke SULTAN, Thomas HJERTBERG
  • Publication number: 20210163636
    Abstract: The invention relates to a polymer composition comprising a polyethylene and a crosslinking agent, characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and in that the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z?Z2, wherein Z2 is 0.30, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 3, 2021
    Inventors: Villgot ENGLUND, Virginie ERIKSSON, Daniel NILSSON, Annika SMEDBERG
  • Publication number: 20210163644
    Abstract: The invention relates to a polyethylene which contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.30; and has a complex viscosity (?*) at 0.05 rad/sec, which is X Pas, and X1?X?X2, wherein X1 is 10000 and X2 is 30000; and has a complex viscosity (?*) at 300 rad/sec, which is Y Pas, and Y1?Y?Y2, wherein Y1 is 5 and Y2 is 350, both complex viscosities (?*) are determined according to method ISO 6721-1 on stabilised samples of the polyethylene, 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: Application
    Filed: December 18, 2018
    Publication date: June 3, 2021
    Inventors: Annika SMEDBERG, Villgot ENGLUND, Emil HJÄRTFORS
  • Publication number: 20210163635
    Abstract: The invention relates to a polymer composition comprising a polyethylene and a crosslinking agent, wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.88, when measured prior to crosslinking according to method ASTM D624898; and wherein the crosslinking agent is present in an amount which Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z?Z2, wherein Z2 is 0.60, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 3, 2021
    Inventors: Villgot ENGLUND, Virginie ERIKSSON, Daniel NILSSON, Annika SMEDBERG
  • Publication number: 20210163637
    Abstract: The invention relates to a cable comprising layer(s), which layer(s), is/are obtained from a polymer composition, wherein the polymer composition comprises a polyethylene and a crosslinking agent, wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and wherein the crosslinking agent is present in an amount which is Z wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and Z?Z2, wherein Z2 is 0.60, the cable, e.g. being a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 3, 2021
    Inventors: Villgot ENGLUND, Virginie ERIKSSON, Daniel NILSSON, Annika SMEDBERG
  • Patent number: 11020878
    Abstract: The present invention relates to an equipment and method for producing polymer pellets which comprise one or more polymer components and one or more further components, wherein in said process at least one of said one or more further components is incorporated into pellets by applying a liquid, which comprises said at least one component, onto said pellets.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: June 1, 2021
    Assignee: Borealis Technology Oy
    Inventors: Mats Göransson, Richard Handwerk, Sune Larsson, Annika Smedberg, James Stadelman
  • Patent number: 11011287
    Abstract: A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450 kV, or 525 kV, or more.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: May 18, 2021
    Assignee: Borealis AG
    Inventors: Peter Sunnegårdh, Marc Jeroense, Anders Gustafsson, Pär Lilja, Per-Ola Hagstrand, Villgot Englund, Annika Smedberg, Ulf Nilsson, Johan Andersson, Virginie Eriksson, Jonas Jungqvist, Jonny Brun
  • Publication number: 20210122903
    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: Application
    Filed: November 2, 2020
    Publication date: April 29, 2021
    Inventors: Villgot ENGLUND, Per-Ola HAGSTRAND, Annika SMEDBERG, Ulf NILSSON
  • Publication number: 20210087358
    Abstract: The invention relates to a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z1?Z?Z2, wherein Z1 is 0.005 and Z2 is 2.0, and the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W1?W?W2, wherein W1 is 0.005 and W2 is 1.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 25, 2021
    Inventors: Villgot ENGLUND, Virginie ERIKSSON, Daniel NILSSON, Annika SMEDBERG
  • Publication number: 20210087359
    Abstract: The invention relates to a cable comprising layer(s), which layer(s) is/are obtained from a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1?B, wherein B1 is 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and Z1?Z?Z2, wherein Z1 is 0.005 and Z2 is 2.0, and that the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and W1?W?W2, wherein W1 is 0.005 and W2 is 1.0, the cable, e.g.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 25, 2021
    Inventors: Villgot ENGLUND, Virginie ERIKSSON, Daniel NILSSON, Annika SMEDBERG
  • Patent number: 10950366
    Abstract: An alternating current (AC) power cable includes a conductor surrounded by at least an inner semiconductive layer including a first semiconductive composition, an insulation layer including a polymer composition, an outer semiconductive layer including a second semiconductive composition, and optionally a jacketing layer including a jacketing composition, in that order. The polymer composition of the insulation layer includes an unsaturated low density polyethylene (LDPE) copolymer of ethylene with one or more polyunsaturated comonomers and a crosslinking agent. The polymer composition of the insulation layer has a dielectric loss expressed as tan ? (50 Hz) of 12.0×10?4 or less, when measured at 25 kV/mm and 130° C. according to “Test for Tan ? measurements on 10 kV cables”.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: March 16, 2021
    Assignee: Borealis AG
    Inventors: Ulf Nilsson, Annika Smedberg, Alfred Campus