Patents by Inventor Stefan Hellstrom

Stefan Hellstrom 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).

  • Patent number: 12404392
    Abstract: The invention relates to the use of a polyethylene composition comprising one or more ethylene copolymer(s) wherein the ethylene copolymer is a terpolymer containing monomer units with polar groups and monomer units with hydrolysable silane groups, wherein the monomer units with polar groups are present in an amount of more than 5 mol. % based on the total polyethylene composition, and a silanol condensation catalyst in an amount of 0.0001 to 5 wt. %, based on the total polyethylene composition for improving the adhesion between a layer of a cable comprising the polyethylene composition and a polyurethane resin.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 2, 2025
    Assignee: BOREALIS AG
    Inventors: Kjell Fossum, Stefan Hellstrom, Bernt-Ake Sultan
  • Patent number: 12209181
    Abstract: The present invention relates to a polymer composition (I) comprising at least the following components: (A) 87.00 to 99.79 wt.-% based on the overall weight of the polymer composition (I) of a specific polymer, (B) 0.20 to 10 wt.-% based on the overall weight of the polymer composition (I) of a specific copolymer of ethylene and (C) 0.01 to 3.00 wt.-% based on the overall weight of the polymer composition (I) of a compound according to Formula (a), whereby components (A), (B) and (C) add up to 100 wt.-%. In addition, the present invention refers to a photovoltaic module comprising at least one layer comprising polymer composition (I), to a method for improving the storage stability and/or transport stability of polymer (A) and to the use of components (B) and (C) for improving the storage stability and/or transport stability of a polymer (A).
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: January 28, 2025
    Assignee: BOREALIS AG
    Inventors: Jessica Hesselgren, Stefan Hellstrom, Jeroen Oderkerk, Francis Costa, Denis Yalalov
  • Patent number: 11884044
    Abstract: The present invention relates to a lamination process for producing a multilayer laminate, preferably to a lamination process for producing a photovoltaic (PV) module, and to a PV module laminate.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 30, 2024
    Assignee: BOREALIS AG
    Inventors: Stefan Hellstrom, Francis Costa, Jeroen Oderkerk, Bert Broeders
  • Publication number: 20230227644
    Abstract: The present invention relates to a polymer composition (I) comprising at least the following components: (A) 87.00 to 99.79 wt.-% based on the overall weight of the polymer composition (I) of a specific polymer, (B) 0.20 to 10 wt.-% based on the overall weight of the polymer composition (I) of a specific copolymer of ethylene and (C) 0.01 to 3.00 wt.-% based on the overall weight of the polymer composition (I) of a compound according to Formula (a), whereby components (A), (B) and (C) add up to 100 wt.-%. In addition, the present invention refers to a photovoltaic module comprising at least one layer comprising polymer composition (I), to a method for improving the storage stability and/or transport stability of polymer (A) and to the use of components (B) and (C) for improving the storage stability and/or transport stability of a polymer (A).
    Type: Application
    Filed: June 21, 2021
    Publication date: July 20, 2023
    Inventors: Jessica Hesselgren, Stefan Hellstrom, Jeroen Oderkerk, Francis Costa, Denis Yalalov
  • Publication number: 20230115380
    Abstract: The present invention relates to a photovoltaic module comprising a protective front layer element, an encapsulation layer element, a photovoltaic cell element and a protective back layer element, whereby at least one of theprotective elements comprises glass; wherein the encapsulation layer element comprises a polymer composition (I) comprising at least the following components: (A) 90 to 99.8 wt.
    Type: Application
    Filed: March 8, 2021
    Publication date: April 13, 2023
    Inventors: Stefan Hellstrom, Francis Costa, Bert Broeders, Jeroen Oderkerk, Denis Yalalov
  • Patent number: 11552210
    Abstract: The present invention relates to a polymer composition, to an article comprising the polymer composition, preferably to an article which is a photovoltaic (PV) module comprising at least one layer element (LE) comprising the polymer composition and to a process for producing said article, preferably said photovoltaic (PV) module.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: January 10, 2023
    Assignee: BOREALIS AG
    Inventors: Stefan Hellstrom, Francis Costa, Bert Broeders
  • Publication number: 20220347980
    Abstract: An article comprising a layer element (LE) of at least two layers, first layer and second layer.
    Type: Application
    Filed: January 29, 2018
    Publication date: November 3, 2022
    Inventors: Klaus Bernreitner, Martina Sandholzer, Stefan Hellstrom, Francis Costa, Bernt-Ake Sultan, Staffan Josefsson, Kristina Akyuz Karlsson
  • Publication number: 20220177680
    Abstract: The invention relates to the use of a polyethylene composition comprising one or more ethylene copolymer(s) wherein the ethylene copolymer is a terpolymer containing monomer units with polar groups and monomer units with hydrolysable silane groups, wherein the monomer units with polar groups are present in an amount of more than 5 mol. % based on the total polyethylene composition, and a silanol condensation catalyst in an amount of 0.0001 to 5 wt. %, based on the total polyethylene composition for improving the adhesion between a layer of a cable comprising the polyethylene composition and a polyurethane resin.
    Type: Application
    Filed: April 29, 2020
    Publication date: June 9, 2022
    Inventors: Kjell Fossum, Stefan Hellstrom, Bernt-Ake Sultan
  • Patent number: 11192349
    Abstract: The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 7, 2021
    Assignee: BOREALIS AG
    Inventors: Jeroen Oderkerk, Bert Broeders, Bernt-Ake Sultan, Girish Suresh Galgali, Stefan Hellstrom, Mattias Bergqvist, Bart Verheule, Kristina Akyuz-Karlsson, Urban Andreasson, Francis Costa, Anh Tuan Tran
  • Patent number: 11180619
    Abstract: A polymer composition with a polymer of ethylene with a comonomer with silane group(s) containing units and an additive that is an organic compound with at least one amine moiety that has a gel content less than 10 wt % after 7 days at ambient conditions and a gel content of at least 15 wt % gel content after 14 days at 100° C. The film can be used in a laminate.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: November 23, 2021
    Assignee: BOREALIS AG
    Inventors: Francis Costa, Mattias Bergqvist, Stefan Hellstrom, Bert Broeders, Girish Suresh Galgali, Tanja Piel, Bernt-Ake Sultan, Bart Verheule, Jeroen Oderkerk
  • Patent number: 11091617
    Abstract: The present invention relates to a polymer composition, to a use of the polymer composition for producing an article, to an article comprising the polymer composition, preferably to an article which comprises a layer element comprising at least one layer which comprises the polymer composition.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 17, 2021
    Assignee: BOREALIS AG
    Inventors: Klaus Bernreitner, Martina Sandholzer, Stefan Hellstrom, Bert Broeders
  • Publication number: 20210163775
    Abstract: The present invention relates to a polymer composition, which is a silanol condensation catalyst masterbatch, comprises a matrix, comprising a silane containing drying agent, and at least one silanol condensation catalyst, wherein each catalyst has a water content which is 0.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: Ola FAGRELL, Stefan HELLSTROM, Bernt-Ake SULTAN, Perry NYLANDER, Martin ANKER, Kristian DAHLEN, Asa HERMANSSON
  • Publication number: 20210054170
    Abstract: The present invention relates to a polymer composition, to an article comprising the polymer composition, preferably to an article comprising at least one layer element (LE) comprising the polymer composition, and to a process for producing said article.
    Type: Application
    Filed: February 12, 2019
    Publication date: February 25, 2021
    Inventors: Stefan Hellstrom, Mattias Bergqvist
  • Publication number: 20210023831
    Abstract: The present invention relates to a lamination process for producing a multilayer laminate, preferably to a lamination process for producing a photovoltaic (PV) module, and to a PV module laminate.
    Type: Application
    Filed: April 8, 2019
    Publication date: January 28, 2021
    Inventors: Stefan Hellstrom, Francis Costa, Jeroen Oderkerk, Bert Broeders
  • Publication number: 20200290331
    Abstract: The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Inventors: Jeroen Oderkerk, Bert Broeders, Bernt-Ake Sultan, Girish Suresh Galgali, Stefan Hellstrom, Mattias Bergqvist, Bart Verheule, Kristina Akyuz-Karlsson, Urban Andreasson, Francis Costa, Anh Tuan Tran
  • Publication number: 20200181376
    Abstract: The present invention relates to a polymer composition, to an article comprising the polymer composition, preferably to an article which is a photovoltaic (PV) module comprising at least one layer element (LE) comprising the polymer composition and to a process for producing said article, preferably said photovoltaic (PV) module.
    Type: Application
    Filed: June 14, 2018
    Publication date: June 11, 2020
    Inventors: Stefan Hellstrom, Francis Costa, Bert Broeders, Girish Suresh Galgali
  • Publication number: 20200098941
    Abstract: The present invention relates to a polymer composition, to an article comprising the polymer composition, preferably to an article which is a photovoltaic (PV) module comprising at least one layer element (LE) comprising the polymer composition and to a process for producing said article, preferably said photovoltaic (PV) module.
    Type: Application
    Filed: June 14, 2018
    Publication date: March 26, 2020
    Inventors: Stefan Hellstrom, Francis Costa, Bert Broeders
  • Publication number: 20190375905
    Abstract: A polymer composition with a polymer of ethylene with a comonomer with silane group(s) containing units and an additive that is an organic compound with at least one amine moiety that has a gel content less than 10 wt % after 7 days at ambient conditions and a gel content of at least 15 wt % gel content after 14 days at 100° C. The film can be used in a laminate.
    Type: Application
    Filed: July 23, 2019
    Publication date: December 12, 2019
    Inventors: Francis Costa, Mattias Bergqvist, Stefan Hellstrom, Bert Broeders, Girish Suresh Galgali, Tanja Piel, Bernt-Ake Sultan, Bart Verheule, Jeroen Oderkerk
  • Patent number: 10505060
    Abstract: The present invention relates to a polymer composition, to a layer element, preferably to at least one layer element of a photovoltaic module, comprising the polymer composition and to an article which is preferably said at least one layer of a layer element, preferably of a layer element of a photovoltaic module.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 10, 2019
    Assignee: BOREALIS AG
    Inventors: Jeroen Oderkerk, Francis Costa, Bart Verheule, Tanja Piel, Bernt-Ake Sultan, Bert Broeders, Stefan Hellstrom, Mattias Bergqvist, Girish Suresh Galgali
  • Publication number: 20190305161
    Abstract: The present invention relates to a layer element (L) comprising an ethylene polymer (a), to a multilayer assembly, preferably a photovoltaic multilayer assembly, comprising the layer element (L) of the invention, to an article comprising the layer element (L), preferably comprising a multilayer laminate comprising the layer element (L), more preferably a multilayer laminate of a photovoltaic (PV) module comprising the layer element (L) of the invention, to use of said layer element (L) for producing an article, preferably a photovoltaic module (PV), as well as to a process for producing an article, preferably a photovoltaic module, of the invention comprising the layer element (L).
    Type: Application
    Filed: July 13, 2017
    Publication date: October 3, 2019
    Inventors: Francis Costa, Stefan Hellstrom