Patents by Inventor Thomas Hjertberg

Thomas Hjertberg 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: 20140275427
    Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is greater than 15, a storage modulus G? (5 kPa) which is above 3000 and a vinylidene content which is at least 15/100k C, compositions, a process for production of the low density polyethylene, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process, an article, e.g. an extrusion article, and use in extrusion coating.
    Type: Application
    Filed: December 7, 2012
    Publication date: September 18, 2014
    Applicant: BOREALIS AG
    Inventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
  • Publication number: 20140199547
    Abstract: The invention relates to a crosslinkable semiconductive polymer composition comprising (a) a polyolefin, carbon black and a compound (b), to a cable, preferably to a crosslinkable comprising the polymer composition, to a production thereof, and preferably to a crosslinked cable comprising the polymer composition of the invention.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 17, 2014
    Applicant: BOREALIS AG
    Inventors: John Jamieson, Annika Smedberg, Christer Svanberg, Jenny-Ann Ostlund, Ola Fagrell, Perry Nylander, Takashi Uematsu, Thomas Hjertberg, Thomas Steffel
  • Patent number: 8765843
    Abstract: The present invention relates to a polyolefin composition comprising (i) a polyolefin (A), (ii) a benzophenone derivative (B) comprising the, preferably consisting of the, structural unit according to the following formula (I): wherein one or more of the Carbon atoms in the phenyl rings to which residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is attached may also be a heteroatom, such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is not present; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently are hydrogen, or a hydrocarbyl group which may contain heteroatoms; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring may further bear one to eight substituents, R1? to R8? each of which are independentl
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 1, 2014
    Assignee: Borealis AG
    Inventors: Thomas Hjertberg, Villgot Englund
  • Publication number: 20140093724
    Abstract: A film forming composition and a polymeric film or coating comprising hemicellulose is disclosed, said polymeric film or coating further comprising at least one additive/reactant increasing the liquid/moisture resistance. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid/moisture resistance of hemicellulose. The hemicellulose/phyllosilicate nanocomposite reinforced material provides excellent liquid/moisture resistance.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: XYLOPHANE AB
    Inventors: Maria Grondahl, Lisa Bindgard, Paul Gatenholm, Thomas Hjertberg
  • Publication number: 20130341066
    Abstract: This application relates to a polyolefin composition comprising a polyolefin and an aromatic compound. The polyolefin composition can be used in producing medium and high voltage cables with improved electrical breakdown strength.
    Type: Application
    Filed: August 5, 2013
    Publication date: December 26, 2013
    Applicant: Borealis Technology OY
    Inventors: Thomas Hjertberg, Villgot Englund
  • Publication number: 20130313000
    Abstract: The invention relates to a polymer composition comprising a polyolefin (A) and an antioxidant.
    Type: Application
    Filed: October 5, 2011
    Publication date: November 28, 2013
    Applicant: BOREALIS AG
    Inventors: Susanne M. Nilsson, Thomas Hjertberg, Annika M. Smedberg
  • Patent number: 8557033
    Abstract: A film forming composition and a polymeric film or coating comprising hemicellulose and at least one component selected from the group consisting of plasticizers, cellulose, and an oligomer or polymer, is disclosed, said polymeric film or coating further comprising at least one additive/reactant increasing the liquid/moisture resistance and mixed with and/or reacting with the hemicellulose and said at least one component before or in conjunction with the forming of the film or coating. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid/moisture resistance of hemicellulose. Said at least one additive/reactant increasing the liquid/moisture resistance is either a cross-linking agent or a hydrophobizing agent. In another preferred embodiment the additive is a 2:1 layered phyllosilicate. The additive forms a nanocomposite with the hemicellulose as a matrix.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: October 15, 2013
    Assignee: Xylophane AB
    Inventors: Maria Gröndahl, Lisa Bindgard, Paul Gatenholm, Thomas Hjertberg
  • Patent number: 8519037
    Abstract: The present invention relates to a polyolefin composition comprising a polyolefin and aromatic compounds, comprising a naphthyl-group or at least two linked phenyl-groups, as stabilizers for use in producing medium and high voltage cables with improved electrical breakdown strength.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 27, 2013
    Assignee: Borealis Technology Oy
    Inventors: Thomas Hjertberg, Villgot Englund
  • Publication number: 20130199820
    Abstract: The invention relates to a crosslinkable polymer composition comprising (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to an article, preferably a cable, thereof. Also the use of the silanol condensation catalyst compound for crosslinking an article, preferably a layer of a cable is provided.
    Type: Application
    Filed: June 10, 2011
    Publication date: August 8, 2013
    Applicant: BOREALIS AG
    Inventors: Kristian Dahlen, Ola Fagrell, Kjell Fossum, Thomas Hjertberg, Perry Nylander, Oscar Prieto
  • Publication number: 20130025910
    Abstract: The present invention relates to a polyolefin composition comprising (i) a polyolefin (A), (ii) a benzil derivative (B) comprising the, preferably consisting of the, structural unit according to the following formula (I).
    Type: Application
    Filed: February 16, 2011
    Publication date: January 31, 2013
    Inventors: Villgot Englund, Thomas Hjertberg, Mats Andersson
  • Publication number: 20110220392
    Abstract: The present invention relates to a polyolefin composition comprising (i) a polyolefin (A), (ii) a benzophenone derivative (B) comprising the, preferably consisting of the, structural unit according to the following formula (I): wherein one or more of the Carbon atoms in the phenyl rings to which residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is attached may also be a heteroatom, such as N, in which case the respective residue R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10 is not present; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently are hydrogen, or a hydrocarbyl group which may contain heteroatoms; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring may further bear one to eight substituents, R1? to R8? each of which are independentl
    Type: Application
    Filed: July 30, 2009
    Publication date: September 15, 2011
    Inventors: Thomas Hjertberg, Villgot Englund
  • Publication number: 20100263903
    Abstract: The present invention relates to a polyolefin composition comprising a polyolefin and aromatic compounds, comprising a naphthyl-group or at least two linked phenyl-groups, as stabilizers for use in producing medium and high voltage cables with improved electrical breakdown strength.
    Type: Application
    Filed: December 19, 2008
    Publication date: October 21, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Thomas Hjertberg, Villgot Englund
  • Publication number: 20100129642
    Abstract: A film forming composition and a polymeric film or coating comprising hemicellulose and at least one component selected from the group consisting of plasticizers, cellulose, and an oligomer or polymer, is disclosed, said polymeric film or coating further comprising at least one additive/reactant increasing the liquid/moisture resistance and mixed with and/or reacting with the hemicellulose and said at least one component before or in conjunction with the forming of the film or coating. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid/moisture resistance of hemicellulose. Said at least one additive/reactant increasing the liquid/moisture resistance is either a cross-linking agent or a hydrophobizing agent. In another preferred embodiment the additive is a 2:1 layered phyllosilicate. The additive forms a nanocomposite with the hemicellulose as a matrix.
    Type: Application
    Filed: February 19, 2008
    Publication date: May 27, 2010
    Inventors: Maria Gröndahl, Lisa Bindgard, Paul Gatenholm, Thomas Hjertberg
  • Patent number: 6887939
    Abstract: The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: wherein X is O, NH or NR5; R1, R2 and R3 are each independently H, C1-C8 alkyl, C1-C8 substituted aryl; R4 is H, C1-C8 alkyl, C6-C12 cycloalkyl, C1-C10 acyl, C1-C10 acyloxy or C1-C8 alkyl ether; R5 is C1-C8 alkyl and wherein the copolymer has at least 1 mol % (B) and has an MFR2 of 1-1000 g/10 min.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 3, 2005
    Assignees: Degussa AG, Borealis A/S
    Inventors: Udo Jegelka, Jochen Kirchhoff, Thomas Hjertberg, Bill Gustafsson, Johan Linner, Annika Smedberg
  • Publication number: 20030125428
    Abstract: The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: 1
    Type: Application
    Filed: January 3, 2003
    Publication date: July 3, 2003
    Applicant: DEGUSSA AG
    Inventors: Udo Jegelka, Jochen Kirchhoff, Thomas Hjertberg, Bill Gustafsson, Johan Linner, Annika Smedberg
  • Patent number: 6194630
    Abstract: A superabsorbent fiber or a nonwoven material including a thermoplastic polymeric fiber to which solid particles of superabsorbent material have been thermobonded by heating the polymeric fiber to a temperature at which adhesion is obtained between the fiber and the particles and a method of making the same. Also, an absorbent article is produced including such a superabsorbent fiber or nonwoven material.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: February 27, 2001
    Assignee: SCA Hygiene Products Aktiebolag
    Inventors: Thami Chihani, Göran Canbäck, Urban Wecke, Thomas Hjertberg