Patents by Inventor Sven Gothe

Sven Gothe 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: 20230272535
    Abstract: There is provided a method for treating a surface comprising heating the object and the object with a solution comprising a thermal initiator and a polymerizable molecule, wherein the polymerizable molecule reacts with the surface and forms a covalent bond and optionally a covalently bound polymer on the surface of the object. Metal ions are bound to the surface to make the surface possible for adding further metal later. Advantages include that complicated geometries can be coated, problems with oxygen inhibition of the initiator is reduced, and surface reaction to form covalent bonds is promoted compared to the bulk polymerization reaction.
    Type: Application
    Filed: July 23, 2021
    Publication date: August 31, 2023
    Inventors: Sven GÖTHE, Björn ATTHOFF
  • Patent number: 10934617
    Abstract: A method for applying a metal on a substrate comprises: a) applying a coating by treatment in a plasma, comprising a compound selected from alkanes up to 10 carbon atoms, and unsaturated monomers, and b1) producing polymers on the surface of the substrate, the polymers comprising carboxylic groups and adsorbed ions of a second metal, reducing the ions to the second metal, or alternatively b2) producing polymers on the surface, bringing the surface of the substrate in contact with a dispersion of colloidal metal particles of at least one second metal, and c) depositing the first metal on the second metal. Advantages include that materials sensitive to, for instance, low pH or solvents can be coated. Substrates including glass, SiO2 with very few or no abstractable hydrogen atoms as well as polymer materials containing halogen atoms can be coated with good adhesion.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: March 2, 2021
    Assignee: CUPTRONIC TECHNOLOGY LTD.
    Inventors: Sven Göthe, Björn Atthoff, Karl-Gunnar Larsson
  • Patent number: 10822702
    Abstract: A method for application of a metal on a substrate comprises a) contacting at least a part of the surface of the substrate with at least one initiator, and polymerizable units with the ability to undergo a chemical reaction to form a polymer, the polymer comprising at least one charged group, wherein the contacting is achieved by contacting a pad with a plate comprising the at least one initiator and the polymerizable units and subsequently contacting the pad with the surface of the substrate, thereby transferring the at least one initiator and the polymerizable units to the surface of the substrate. Subsequently a metal layer is produced on the surface. The compactness of the applied metal layer is increased.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 3, 2020
    Assignee: CUPTRONIC TECHNOLOGY LTD.
    Inventors: Björn Atthoff, Sven Göthe
  • Patent number: 10774424
    Abstract: A method of metallizing substrate with abstractable hydrogen atoms and/or unsaturations on the surface, comprising the steps: a) contacting the substrate with a polymerizable unit, at least one initiator which can be activated by both heat and actinic radiation, and optionally at least one solvent, b) inducing a polymerization reaction c) depositing a second metal on an already applied first metal to obtain a metal coating. A first metal is added as ions and/or small metal particles during the process. Ions are reduced to the first metal. Advantages include that the adhesion is improved, the process time is shortened, blisters in the metal coating are avoided, the polymer layer below the metal coating becomes less prone to swelling for instance in contact with water.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 15, 2020
    Assignee: CUPTRONIC TECHNOLOGY LTD.
    Inventors: Björn Atthoff, Sven Göthe
  • Patent number: 9889471
    Abstract: A process for application of metal on a substrate surface comprises applying a mixture of a solvent, a polymerizable monomer, and a photoinitiator on a substrate surface, wherein the photoinitiator does not form two phases together with the monomer and the solvent, i.e. it forms an amorphous mixture without any crystals. The monomer is able to polymerize to a polymer comprising at least one carboxylic group. Thereafter the solvent is evaporated. Polymerization is induced by irradiating the applied dried mixture. Ions are applied and reduced to metal and thereafter further metal can be deposited. The method can be used in industrial processes, both 2D and 3D surfaces can be coated with metal. Materials sensitive to standard grafting chemicals and/or polymers containing halogen atoms can be coated.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: February 13, 2018
    Assignee: Cuptronic Technology Ltd.
    Inventors: Sven Göthe, Björn Atthoff
  • Publication number: 20170044672
    Abstract: There is disclosed a method for application of a metal on a substrate, comprising the steps: a) contacting at least a part of the surface of the substrate with at least one selected from: i) at least one initiator, and a polymerizable unit with the ability to undergo a chemical reaction to form a polymer, said polymer comprising at least one charged group, and ii) a polymer comprising at least one charged group. The contacting is achieved by contacting a pad with a plate comprising the at least one substance and subsequently contacting the pad with the surface of the substrate, thereby transferring the at least one substance to the surface of the substrate. Subsequently a metal layer is produced on the surface. Advantages include that the compactness of the applied metal layer increases compared to similar methods according to the prior art.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 16, 2017
    Inventors: Björn ATTHOFF, Sven GÖTHE
  • Publication number: 20170044670
    Abstract: A method of metallizing substrate with abstractable hydrogen atoms and/or unsaturations on the surface, comprising the steps: a) contacting the substrate with a polymerizable unit, at least one initiator which can be activated by both heat and actinic radiation, and optionally at least one solvent, b) inducing a polymerization reaction c) depositing a second metal on an already applied first metal to obtain a metal coating. A first metal is added as ions and/or small metal particles during the process. Ions are reduced to the first metal. Advantages include that the adhesion is improved, the process time is shortened, blisters in the metal coating are avoided, the polymer layer below the metal coating becomes less prone to swelling for instance in contact with water.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 16, 2017
    Inventors: Björn Atthoff, Sven Göthe
  • Publication number: 20150056410
    Abstract: A process for application of metal on a substrate surface comprises applying a mixture of a solvent, a polymerizable monomer, and a photoinitiator on a substrate surface, wherein the photoinitiator does not form two phases together with the monomer and the solvent, i.e. it forms an amorphous mixture without any crystals. The monomer is able to polymerize to a polymer comprising at least one carboxylic group. Thereafter the solvent is evaporated. Polymerization is induced by irradiating the applied dried mixture. Ions are applied and reduced to metal and thereafter further metal can be deposited. The method can be used in industrial processes, both 2D and 3D surfaces can be coated with metal. Materials sensitive to standard grafting chemicals and/or polymers containing halogen atoms can be coated.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Sven GÖTHE, Björn ATTHOFF
  • Publication number: 20140017575
    Abstract: A method for applying a metal on a substrate comprises: a) applying a coating by treatment in a plasma, comprising a compound selected from alkanes up to 10 carbon atoms, and unsaturated monomers, and b1) producing polymers on the surface of said substrate, said polymers comprising carboxylic groups and adsorbed ions of a second metal, reducing said ions to the second metal, or alternatively b2) producing polymers on the surface, bringing the surface of said substrate in contact with a dispersion of colloidal metal particles of at least one second metal, and c) depositing said first metal on said second metal. Advantages include that materials sensitive to for instance low pH or solvents can be coated. Substrates including glass, SiO2 with very few of no abstractable hydrogen atoms as well as polymer materials containing halogen atoms can be coated with good adhesion.
    Type: Application
    Filed: November 16, 2011
    Publication date: January 16, 2014
    Applicant: CUPTRONIC TECHNOLOGY LTD.
    Inventors: Sven Göthe, Björn Atthoff, Karl-Gunnar Larsson
  • Patent number: 8372519
    Abstract: The present invention relates to a composition in the form of a mixture comprising at least two components a) and b), wherein component a) comprises at least one mono and/or multifunctional thiol and component b) comprises at least one mono and/or multifunctional ene, wherein the molar ratio between the thiol groups and the ene groups is 1:0.1 to 1:100. Further, the invention relates to an impregnated wood element, wherein it is obtainable by impregnating a wood element with a composition according to the present invention or a mixture of the components of the composition in batch form (multi-component) according to the present invention and thereafter curing the composition or the mixture. The invention also relates to a method of impregnating a wood element.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: February 12, 2013
    Assignee: Calignum Technologies AB
    Inventors: Sven Göthe, Ove Lindström, Kristian Lough-Grimsgaard, Eric Sjöberg
  • Publication number: 20090280344
    Abstract: The present invention relates to a composition in the form of a mixture comprising at least two components a) and b), wherein component a) comprises at least one mono and/or multifunctional thiol and component b) comprises at least one mono and /or multifunctional ene, wherein the molar ratio between the thiol groups and the ene groups is 1:0.1 to 1:100. Further, the invention relates to an impregnated wood element, wherein it is obtainable by impregnating a wood element with a composition according to the present invention or a mixture of the components of the composition in batch form (multi-component) according to the present invention and thereafter curing the composition or the mixture. The invention also relates to a method of impregnating a wood element.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 12, 2009
    Inventors: Sven Gothe, Ove Lindstrom, Kristian Lough-Grimsgaard, Eric Sjoberg
  • Publication number: 20050189519
    Abstract: A composition comprising a vegetable oil, a hydrogen donor and an initiator, wherein the initiator has the formula (I): wherein Ar=aromatic group, Ary=0 or Ar, and B=I or S can be used to treat wood. The composition can include a solvent. Methods of treating wood comprise surface coating the wood with the composition or impregnating the wood with the composition, and heating the coated or impregnated wood at a temperature of at least 40° C. for at least 20 minutes.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventors: Sven Gothe, Lennart Castwall
  • Patent number: 5873991
    Abstract: Method for electrophoretic separation of nucleic acid fragments comprising the following steps:a) providing a polyacrylamide based gel prepared by photoinitiated polymerization of a mixture containing monoolefinic- and di- and/or polyolefinic monomers and a photoinitiator of the general formula: ##STR1## where R.sub.1 and R.sub.2 independently are CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7 or R.sub.1, R.sub.2 together with the carbon atom form a cycloaliphatic ring with 4-8 carbons;R.sub.3 =H, CH.sub.3, C.sub.2 H.sub.5 or --O--(CH.sub.2 CH.sub.2).sub.n --OH with n=1-20;b) applying said nucleic acid fragments on said polyacrylamide based gel;c) electrophoretically separating said fragments on said gel. The invention also relates to a kit for use in the method for electrophoretic separation of nucleic acid fragments.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: February 23, 1999
    Assignee: Pharmacia Biotech AB
    Inventors: Sven Gothe, Anders Hult, Jan-Olof Johansson, Lennart K.ang.gedal, Anna Sylwan
  • Patent number: 5223591
    Abstract: Initiators for cationic polymerization by thermal activation, photochemical activation (UV-irradiation) or activation by electron bombardment are compounds wherein a heterocyclic, aryl substituted or aryl ring is fused to a sulfonium moiety in combination with a non-nucleophilic anion. During the activation of the initiator, a carbon-sulfur bond is broken leading to formation of a sulfide and a carbonium ion within the same molecule. The carbonium ion initiates the polymerization.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 29, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Johan Nyander, Sonny Jonsson, Bjorn Elman, Ann-Britt Pettersson, Per-Erik Sundell, Sven Gothe, Jan-Erik Nystrom