Patents by Inventor Kristian Dahlén

Kristian Dahlén 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: 10767020
    Abstract: The present invention relates to a catalyst masterbatch for cross-linking a polyolefin having cross-linkable silicon-containing groups. The catalyst masterbatch includes both of a Brønsted acid and/or Brønsted acid anhydride (A); and a polyolefin (B) containing Brønsted acid and/or Brønsted acid anhydride groups. The invention also encompasses compositions of a polyolefin having cross-linkable silicon-containing groups that include the catalyst masterbatch, use of the catalyst masterbatch in a cross-linking reaction of silicon-containing polyolefins, and a cable layer that includes a polymer made using the catalyst masterbatch.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: September 8, 2020
    Assignee: BOREALIS AG
    Inventors: Kristian Dahlén, Perry Nylander
  • Patent number: 10233310
    Abstract: The present invention relates to a polymer composition comprising a surfactant interacting additive, and wherein the polymer composition further comprises at least one silanol condensation catalyst, wherein each catalyst is selected from: i) a compound of formula I ArSO3H (I) or a precursor thereof, wherein Ar is an 1 to 4 alkyl groups substituted aryl, wherein the aryl is phenyl or naphthyl, and wherein each alkyl group, independently, is a linear or branched alkyl with 10 to 30 carbons, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons; ii) a derivative of i) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolysable to the corresponding compound of formula I; and iii) a metal salt of i) wherein the metal ion is selected from the group consisting of copper, aluminum, tin and zinc; an article, for example, a coating, a wire or a cable, comprising the polymer composition, a process
    Type: Grant
    Filed: December 14, 2014
    Date of Patent: March 19, 2019
    Assignee: BOREALIS AG
    Inventors: Martin Anker, Perry Nylander, Roger Carlsson, Bernt-Ake Sultan, Stefan Hellstrom, Kristian Dahlen, Ola Fagrell
  • Publication number: 20180226173
    Abstract: A process of making a cable having a conductor surrounded by at least one crosslinkable layer having a polymer composition. The polymer composition has (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 9, 2018
    Inventors: Kjell Fossum, Martin Anker, Mattias Bergqvist, Kristian Dahlen, Thomas Hjertberg, Perry Nylander, Ola Fagrell
  • Publication number: 20170355175
    Abstract: The present invention relates to a layered structure comprising a copper conductor and a polymer layer adjacent to the copper conductor, more specific to a wire or cable insulation layer that can preserve the copper conductor from discolouration. The polymer layer adjacent to the copper conductor comprises the polymer composition comprising a benzotriazole compound. This prevents discoloration of the copper conductor.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 14, 2017
    Applicant: Borealis AG
    Inventors: Ola Fagrell, Kristian Dahlen, Stefan Hellstrom
  • Publication number: 20170107356
    Abstract: The present invention relates to a polymer composition comprising a surfactant interacting additive, and wherein the polymer composition further comprises at least one silanol condensation catalyst, wherein each catalyst is selected from: i) a compound of formula I ArSO3H (I) or a precursor thereof, wherein Ar is an 1 to 4 alkyl groups substituted aryl, wherein the aryl is phenyl or naphthyl, and wherein each alkyl group, independently, is a linear or branched alkyl with 10 to 30 carbons, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons; ii) a derivative of i) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolysable to the corresponding compound of formula I; and iii) a metal salt of i) wherein the metal ion is selected from the group consisting of copper, aluminum, tin and zinc; an article, for example, a coating, a wire or a cable, comprising the polymer composition, a process
    Type: Application
    Filed: December 17, 2014
    Publication date: April 20, 2017
    Inventors: Martin ANKER, Perry NYLANDER, Roger CARLSSON, Bernt-Ake SULTAN, Stefan HELLSTROM, Kristian DAHLEN, Ola FAGRELL
  • Publication number: 20160319148
    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: December 17, 2014
    Publication date: November 3, 2016
    Inventors: Ola FAGRELL, Stefan HELLSTROM, Bernt-Ake SULTAN, Perry NYLANDER, Martin ANKER, Kristian DAHLEN, Asa HERMANSSON
  • Publication number: 20160312012
    Abstract: The present invention relates to a polymer composition comprising a surfactant interacting additive, and wherein the polymer composition further comprises at least one silanol condensation catalyst, wherein each catalyst is selected from: i) a compound of formula I ArSO3H (I) or a precursor thereof, wherein Ar is an 1 to 4 alkyl groups substituted aryl, wherein the aryl is phenyl or naphthyl, and wherein each alkyl group, independently, is a linear or branched alkyl with 10 to 30 carbons, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons; ii) a derivative of i) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolysable to the corresponding compound of formula I; and iii) a metal salt of i) wherein the metal ion is selected from the group consisting of copper, aluminum, tin and zinc; an article, for example, a coating, a wire or a cable, comprising the polymer composition, a process
    Type: Application
    Filed: December 14, 2014
    Publication date: October 27, 2016
    Inventors: Martin ANKER, Perry NYLANDER, Roger CARLSSON, Bernt-Ake SULTAN, Stefan HELLSTROM, Kristian DAHLEN, Ola FAGRELL
  • Publication number: 20160297949
    Abstract: A polyethylene composition comprising a polyethylene comprising hydrolysable silane groups and a silanol condensation catalyst that can be crosslinked. The crosslinkable polyethylene comprises trimethoxy silane and/or triethoxy silane groups and the silanol condensation catalyst comprises an inorganic tin compound in which a tin atom has no covalent bond to a carbon atom. The crosslinked composition can be used in a cable, such as an insulation layer.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 13, 2016
    Inventors: Oscar PRIETO, Martin ANKER, Ola FAGRELL, Kristian DAHLEN, Asa HERMANSSON
  • Patent number: 9255159
    Abstract: The present invention provides a process for manufacturing polyethylene-diene-copolymer conducted in a plant including at least one compressor unit, at least one preheater unit downstream of the compressor unit and at least one reactor, in particular a reactor, downstream of the compressor unit and the preheater unit. The process comprising the steps of (a) feeding a first feed stream comprising ethylene into the at least one compressor unit and subsequently into the at least one preheater unit, and (b1) feeding a second feed stream including at least one diene comonomer to the first feed stream leaving the at least preheater unit, and feeding the combined feed streams including ethylene and the at least one diene comonomer to the at least one reactor, and/or (b2) feeding a second feed stream including at least one diene comonomer to the at least one reactor at at least one location along the reactor.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 9, 2016
    Assignee: Borealis AG
    Inventors: Bernt-Ake Sultan, Bjoern Voigt, Perry Nylander, Thomas Hjertberg, Kristian Dahlen, Mattias Bergqvist, Martin Anker, Kjell Fossum
  • Patent number: 9221934
    Abstract: The present invention relates to a process for manufacturing polyethylene-silane-copolymer conducted in a plant including at least one compressor unit and at least one reactor downstream of the compressor unit. The process includes the steps of (a) feeding a first feed stream including ethylene into the at least one compressor unit and subsequently to the at least one reactor, and (b1) feeding a second feed stream including at least one silane comonomer to the at least one reactor as front feed and/or (b2) feeding a second feed stream including at least one silane comonomer to the at least one reactor at at least one location along the reactor.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 29, 2015
    Assignee: Borealis AG
    Inventors: Helmut Feichtner, Bernt-Ake Sultan, Gabriel Ruess, Bjoern Voigt, Roger Carlsson, Martin Anker, Mattias Bergqvist, Kristian Dahlen, Kjell Fossum, Thomas Hjertberg, Perry Nylander
  • Publication number: 20150284582
    Abstract: The present invention relates to a cable construction comprising one or more layer elements, which layer elements comprise a first composition, wherein the first composition comprises: 20 to 80 weight percent of a vinyl chloride resin and 1 to 40 weight percent of an epoxidized ester of fatty acids and a monomeric polyol, which epoxidized ester is a compound of formula (I) wherein the compound of formula (I) has an amount of double bonds corresponding to an Iodine value of 2 or less, a power cable, process for producing a cable construction, and a crosslinked cable construction obtainable by the process.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 8, 2015
    Applicant: Borealis AG
    Inventors: Thomas Hjertberg, Martin Anker, Bernt-Ake Sultan, Patrik Alnegren, Kristian Dahlen, Perry Nylander, Ola Fagrell
  • Patent number: 9133331
    Abstract: A crosslinkable polymer composition having (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to an article, preferably a cable, thereof. A silanol condensation catalyst compound utilized for crosslinking an article, preferably a layer of a cable.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 15, 2015
    Assignee: Borealis AG
    Inventors: Kristian Dahlen, Ola Fagrell, Kjell Fossum, Thomas Hjertberg, Perry Nylander, Oscar Prieto
  • Publication number: 20150133616
    Abstract: The present invention provides a process for manufacturing polyethylene-diene-copolymer conducted in a plant including at least one compressor unit, at least one preheater unit downstream of the compressor unit and at least one reactor, in particular a reactor, downstream of the compressor unit and the preheater unit. The process comprising the steps of (a) feeding a first feed stream comprising ethylene into the at least one compressor unit and subsequently into the at least one preheater unit, and (b1) feeding a second feed stream including at least one diene comonomer to the first feed stream leaving the at least preheater unit, and feeding the combined feed streams including ethylene and the at least one diene comonomer to the at least one reactor, and/or (b2) feeding a second feed stream including at least one diene comonomer to the at least one reactor at at least one location along the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: May 14, 2015
    Inventors: Bernt-Ake Sultan, Bjoern Voigt, Perry Nylander, Thomas Hjertberg, Kristian Dahlen, Mattias Bergqvist, Martin Anker, Kjell Fossum
  • Publication number: 20150112032
    Abstract: The present invention relates to a process for manufacturing polyethylene-silane-copolymer conducted in a plant including at least one compressor unit and at least one reactor downstream of the compressor unit. The process includes the steps of (a) feeding a first feed stream including ethylene into the at least one compressor unit and subsequently to the at least one reactor, and (b1) feeding a second feed stream including at least one silane comonomer to the at least one reactor as front feed and/or (b2) feeding a second feed stream including at least one silane comonomer to the at least one reactor at at least one location along the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 23, 2015
    Inventors: Helmut Feichtner, Bernt-Ake Sultan, Gabriel Ruess, Bjoern Voigt, Roger Carlsson, Martin Anker, Mattias Bergqvist, Kristian Dahlen, Kjell Fossum, Thomas Hjertberg, Perry Nylander
  • Publication number: 20150057407
    Abstract: The present invention relates to a polyethylene composition comprising: a) a polyethylene having cross-linkable silicon-containing groups (A); and b) a masterbatch comprising—one or more additives; and—a carrier comprising a C3-C5 alpha-olefin homo or copolymer (B). The present invention further relates to a cross-linked polyethylene composition obtainable by treating the composition according to any one of the preceding claims under cross-linking conditions. The present invention also relates to the following uses: Use of a masterbatch comprising—an additive; and—a carrier comprising a C3-C5 alpha-olefin homo- or copolymer (B) for adding an additive to a polyethylene with cross-linkable silicon-containing groups. Use of C3-C5 alpha-olefin homo- or copolymer (B) as carrier for additive(s) to improve the performance of a silanol condensation catalyst when cross-linking a polyethylene composition further comprising a polyethylene with cross-linkable silicon-containing groups.
    Type: Application
    Filed: April 24, 2013
    Publication date: February 26, 2015
    Applicant: BOREALIS AG
    Inventors: Kristian Dahlen, Perry Nylander, Ola Fagrell
  • Publication number: 20140329090
    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: August 24, 2012
    Publication date: November 6, 2014
    Applicant: BOREALIS AG
    Inventor: Kristian Dahlen
  • Publication number: 20140295186
    Abstract: The invention relates to a cable comprising a conductor surrounded by at least one crosslinkable layer comprising a polymer composition which comprises (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to a production process of such cable.
    Type: Application
    Filed: August 24, 2012
    Publication date: October 2, 2014
    Applicant: BOREALIS AG
    Inventors: Kjell Fossum, Martin Anker, Mattias Bergqvist, Kristian Dahlen, Thomas Hjertberg, Perry Nylander, Ola Fagrell
  • Patent number: 8846844
    Abstract: The present invention relates to a polyolefin composition comprising (A) a crosslinkable polyolefin with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.5 mmol/kg to an ethylene/vinyltrimethoxysilane copolymer with a MFR2=2 g/10 min, a density of 923 g/cm3, and 2 wt. % of vinyltrimethoxysilane and then is cross-linked in a waterbath at 90° C., and to a polyolefin composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups, and (ii) a non-polymeric compound with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: September 30, 2014
    Assignee: Borealis AG
    Inventors: Kristian Dahlen, Roger Carlsson
  • Patent number: 8722827
    Abstract: The present invention relates to a polyolefin composition comprising a cross-linkable polyolefin with (A) hydrolysable silane groups which upon hydrolysation form an acid or a base, (B) hydrolysable silane groups different from silane groups (A).
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: May 13, 2014
    Assignee: Borealis AG
    Inventors: Roger Carlsson, Kristian Dahlen
  • Publication number: 20140127505
    Abstract: 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: Application
    Filed: April 5, 2012
    Publication date: May 8, 2014
    Applicant: BOREALIS AG
    Inventors: Kristian Dahlen, Thomas Gkourmpis, Bernt-Ake Sultan, Martin Anker, Perry Nylander, Ola Fagrell, Lena Lindbom, Bart Verheule