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).

  • Publication number: 20220275172
    Abstract: The present invention relates to a polyolefin composition comprising a cross-linkable polyolefin with hydrolysable silane groups; an acidic silanol condensation catalyst, wherein the acidic silanol condensation catalyst (B) is present in an amount of 0.0001 to 3 wt. % of the polyolefin composition; at least one UV stabilizer selected from the group consisting of phenols, triazines, benzophenones, triazoles and/or combinations thereof; and at least one UV stabilizer of the hindered amine type (HALS) which is present in an amount of 0.0001 to 0.1 wt. % of the polyolefin composition. The present invention also relates to an article comprising such a composition, and to the use of such a composition for the production of an article.
    Type: Application
    Filed: August 12, 2020
    Publication date: September 1, 2022
    Inventors: Stefan Hellström, Tina Gschneidtner, Susanne Nilsson, Bernt-Ake Sultan, Emma Hermansson
  • 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: 11299617
    Abstract: The present invention relates to silane crosslinking catalyst comprising: —75 to 85 wt.-% of an olefin acrylate interpolymer and—15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol; and—optionally up to 5 wt.-% wax, wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s) and sulphonic acid(s), all weight percentages with respect to the total weight of the silane crosslinking catalyst.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Borealis AG
    Inventors: Oscar Prieto, Jeroen Oderkerk, Jari-Jussi Ruskeeniemi, Stefan Hellström, Tanja Piel, Daniela Mileva
  • Publication number: 20220033588
    Abstract: Articles comprising a polymer composition, wherein the polymer composition is obtainable by grafting an ethylene copolymer with comonomer units comprising hydrolysable silane groups, wherein the polymer composition shows high gel content and low compression set at ?25° C. These articles have applications in automotive weather-stripping, such as sealing systems for doors, trunks and hoods.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 3, 2022
    Inventors: Jari-Jussi Ruskeeniemi, Jeroen Oderkerk, Oscar Prieto, Stefan Hellström, Tanja Piel, Daniela Mileva, Floran Prades
  • 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
  • Publication number: 20210363319
    Abstract: The present invention is directed to a foamable polyolefin composition which is crosslinkable by silane groups, to a crosslinked foam obtained from such a foamable polyolefin composition, and to a process for producing a crosslinked foam based on the foamable polyolefin composition. The foamable polyolefin composition comprises a polyethylene bearing hydrolysable silane groups and comonomer units comprising a polar group selected from the group consisting of acrylic acid, methacrylic acid, acrylates, methacrylates, vinyl esters, and mixtures thereof, a silanol condensation catalyst, a physical blowing agent, and a cell nucleating agent.
    Type: Application
    Filed: November 5, 2019
    Publication date: November 25, 2021
    Inventors: Tanja Piel, Antti Tynys, Stefan Hellström, Jeroen Oderkerk, Oscar Prieto, Jari-Jussi Ruskeeniemi, Daniela Mileva, Johan Defoer
  • 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
  • Publication number: 20210324189
    Abstract: The present invention relates to silane crosslinking catalyst comprising: —75 to 85 wt.-% of an olefin acrylate interpolymer and—15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol; and—optionally up to 5 wt.-% wax, wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s) and sulphonic acid(s), all weight percentages with respect to the total weight of the silane crosslinking catalyst.
    Type: Application
    Filed: September 26, 2019
    Publication date: October 21, 2021
    Applicant: BOREALIS AG
    Inventors: Oscar PRIETO, Jeroen ODERKERK, Jari-Jussi RUSKEENIEMI, Stefan HELLSTRÖM, Tanja PIEL, Daniela MILEVA
  • 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
  • Patent number: 10959405
    Abstract: An electronic tag configured to be attached to a body part of an animal. According to a first aspect, the disclosure relates to an electronic tag configured to be attached to a body part of an animal. The electronic tag includes a circuit board, a battery holder, a protection cap and a casing. The battery holder is designed to hold a battery, wherein the battery holder is arranged on the circuit board. The protection cap provides a cavity, wherein the protection cap is arranged on top of the circuit board to accommodate the battery holder in the cavity. The casing includes an upper casing half and lower casing half arranged to encapsulate the circuit board and the protection cap in an interior space defined by the casing halves.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 30, 2021
    Assignee: SONY CORPORATION
    Inventors: Sven Tryding, Stefan Hellström
  • 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: 20200308324
    Abstract: The present invention provides a polyolefin composition, said composition comprising a terpolymer comprising a cross-linkable polyolefin comprising hydrolysable silane groups and a polar comonomer, the polyolefin composition further comprising a cross-linking catalyst and a silicon containing compound. The polar comonomer Is present in an amount of 5-35 wt %.
    Type: Application
    Filed: October 11, 2018
    Publication date: October 1, 2020
    Inventors: Jeroen Oderkerk, Jari-Jussi Ruskeeniemi, Oscar Prieto, Stefan Hellström, Tanja Piel, Daniela Mileva
  • 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: 20200221666
    Abstract: An electronic tag configured to be attached to a body part of an animal. According to a first aspect, the disclosure relates to an electronic tag configured to be attached to a body part of an animal. The electronic tag includes a circuit board, a battery holder, a protection cap and a casing. The battery holder is designed to hold a battery, wherein the battery holder is arranged on the circuit board. The protection cap provides a cavity, wherein the protection cap is arranged on top of the circuit board to accommodate the battery holder in the cavity. The casing includes an upper casing half and lower casing half arranged to encapsulate the circuit board and the protection cap in an interior space defined by the casing halves.
    Type: Application
    Filed: November 21, 2019
    Publication date: July 16, 2020
    Inventors: Sven TRYDING, Stefan HELLSTRÖM
  • 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