Patents by Inventor Thomas Gkourmpis
Thomas Gkourmpis 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).
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Publication number: 20190348191Abstract: A cable comprising one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein said insulation layer comprises an LDPE homopolymer or copolymer having a density of 927 to 940 kg/m3 and wherein the conductivity of the LDPE is 5.0 fS/m or less when measured according to DC conductivity method as described under “Determination Methods”.Type: ApplicationFiled: June 20, 2017Publication date: November 14, 2019Inventors: Per-Ola Hagstrand, Thomas Gkourmpis
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Publication number: 20190326033Abstract: A cable comprising one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein said insulation layer comprises at least 90 wt % of a polymer composition, said polymer composition comprising (I) 80.0 to 99.9 wt % of an LDPE homopolymer or copolymer; and (II) 0.1 to 20.0 wt % of: (i) an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000; or (ii) a single site catalysed medium density polyethylene (MDPE) having a density of 925 to 940 kg/m3 or a single site catalysed linear low density polyethylene (LLDPE) having a density of 910 to 925 kg/m3.Type: ApplicationFiled: June 20, 2017Publication date: October 24, 2019Inventors: Per-Ola Hagstrand, Villgot Englund, Johan Andersson, Virginie Eriksson, Annika Smedberg, Ulf Nilsson, Karl Nielsen, Thomas Gkourmpis, Antonios Gitsas, Mattias Andersson, Christian Müller
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Publication number: 20190237213Abstract: A cable comprising one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein the insulation layer is not crosslinked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 85.0 to 99.5 wt % of an LDPE; and (II) 0.5 to 15.0 wt % of an HDPE having a density of at least 940 kg/m3 or 1.5 to 15.0 wt % of an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000.Type: ApplicationFiled: June 20, 2017Publication date: August 1, 2019Inventors: Per-Ola Hagstrand, Villgot Englund, Thomas Gkourmpis, Mattias Andersson, Jonna Hynynen, Christian Müller
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Publication number: 20190233627Abstract: 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: ApplicationFiled: June 20, 2017Publication date: August 1, 2019Applicant: BOREALIS AGInventors: Per-Ola Hagstrand, Thomas Gkourmpis, Antonios Gitsas, Mattias Andersson, Christian Müller
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Publication number: 20190206588Abstract: A cable comprising a conductor surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein the insulation layer is not crosslinked or is cross-linked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 95.5 to 99.9 wt % of an LDPE; and (II) 0.1 to 4.5 wt % of an HDPE having a density of at least 940 kg/m3.Type: ApplicationFiled: June 20, 2017Publication date: July 4, 2019Inventors: Per-Ola Hagstrand, Thomas Gkourmpis, Antonios Gitsas, Villgot Englund, Ulf Nilsson, Mattias Andersson, Jonna Hynynen, Christian Müller
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Patent number: 10144789Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is 15 or less, a storage modulus G?, measured at a loss modulus G? of 5 kPa, which is above 3000 Pa, a weight average molecular weight (Mw) which is between 192000 and 250000 g/mol and has a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 3.0 g/10 min, compositions, a process for production of the low density polyethylene, a low density polyethylene which is obtainable by the process, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process or a method for an extrusion lamination process, an article, e.g. an extrusion article, an extrusion lamination article, film blowing article, film casting article, wire and cable extrusion article, injection molding article, blow molding article or pipe extrusion article, and uses of the low density polyethylene.Type: GrantFiled: December 7, 2012Date of Patent: December 4, 2018Assignee: BOREALIS AGInventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Gabriel Ruess, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
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Patent number: 9593177Abstract: 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 15/100 k 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: GrantFiled: December 7, 2012Date of Patent: March 14, 2017Assignee: Borealis AGInventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
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Patent number: 9543056Abstract: The present invention relates to a semiconductive polyolefin composition comprising graphene nanoplatelets. It also relates to a semiconductive polyolefin composition comprising the combination of graphene nanoplatelets and carbon black. Moreover, the present invention is related to a process for producing the semiconductive polyolefin composition as well to the use of the semiconductive polyolefin composition in a power cable. Further, the invention is also related to an article, preferably a power cable comprising at least one semiconductive layer comprising said polyolefin composition.Type: GrantFiled: April 5, 2011Date of Patent: January 10, 2017Assignee: BOREALIS AGInventors: Christer Svanberg, Tung Pham, Muhammad Ali Malik, Francis Costa, Yi Liu, Takashi Uematsu, Thomas Gkourmpis
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Publication number: 20160297903Abstract: 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: ApplicationFiled: June 16, 2016Publication date: October 13, 2016Applicant: BOREALIS AGInventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
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Publication number: 20150210785Abstract: The present invention relates to low density polyethylene having a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 4.0 g/10 min, a storage modulus G?, measured at a loss modulus G? of 5 kPa, which is above 3000 Pa and a vinylidene content which is at least 24/100 k C, compositions, a process for production of the low density polyethylene, a low density polyethylene which is obtainable by the process, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process or an extrusion lamination process, an article, e.g. an extrusion article, an extrusion lamination article, film blowing article, film casting article, wire and cable extrusion article, injection moulding article, blow moulding article or pipe extrusion article, and uses of the low density polyethylene.Type: ApplicationFiled: December 7, 2012Publication date: July 30, 2015Applicant: BOREALIS AGInventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg, Gabriel Ruess
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Publication number: 20150111053Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is 15 or less, a storage modulus G?, measured at a loss modulus G? of 5 kPa, which is above 3000 Pa, a weight average molecular weight (Mw) which is between 192000 and 250000 g/mol and has a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 3.0 g/10 min, compositions, a process for production of the low density polyethylene, a low density polyethylene which is obtainable by the process, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process or a method for an extrusion lamination process, an article, e.g. an extrusion article, an extrusion lamination article, film blowing article, film casting article, wire and cable extrusion article, injection moulding article, blow moulding article or pipe extrusion article, and uses of the low density polyethylene.Type: ApplicationFiled: December 7, 2012Publication date: April 23, 2015Inventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Gabriel Ruess, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
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Publication number: 20150004411Abstract: The present invention relates to a semi-conductive polymer composition, the present invention provides a semi-conductive polymer composition comprising an ethylene copolymer comprising polar co-monomer units; an olefin homo- or copolymer; and a conductive filler; wherein the olefin homo- or copolymer has a degree of crystallinity below 20%. The invention also relates to a wire or cable comprising said semi-conductive polymer composition, and to the use of said composition for the production of a layer, preferably a semi-conducting shield layer of a wire or cable.Type: ApplicationFiled: January 31, 2013Publication date: January 1, 2015Applicant: BOREALIS AGInventors: Muhammad Ali Malik, Christer Svanberg, Thomas Gkourmpis, Takashi Uematsu, Roger Carlsson, Niklas Thorn, Jenny-Ann Ostlund
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Publication number: 20140275427Abstract: 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: ApplicationFiled: December 7, 2012Publication date: September 18, 2014Applicant: BOREALIS AGInventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
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Publication number: 20140127505Abstract: The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the end use thereof.Type: ApplicationFiled: April 5, 2012Publication date: May 8, 2014Applicant: BOREALIS AGInventors: Kristian Dahlen, Thomas Gkourmpis, Bernt-Ake Sultan, Martin Anker, Perry Nylander, Ola Fagrell, Lena Lindbom, Bart Verheule
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Publication number: 20130037759Abstract: The present invention relates to a semiconductive polyolefin composition comprising graphene nanoplatelets. It also relates to a semiconductive polyolefin composition comprising the combination of graphene nanoplatelets and carbon black. Moreover, the present invention is related to a process for producing the semiconductive polyolefin composition as well to the use of the semiconductive polyolefin composition in a power cable. Further, the invention is also related to an article, preferably a power cable comprising at least one semiconductive layer comprising said polyolefin composition.Type: ApplicationFiled: April 5, 2011Publication date: February 14, 2013Applicant: BOREALIS AGInventors: Christer Svanberg, Tung Pham, Muhammad Ali Malik, Francis Costa, Yi Liu, Takashi Uematsu, Thomas Gkourmpis