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).
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Publication number: 20230272535Abstract: 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: ApplicationFiled: July 23, 2021Publication date: August 31, 2023Inventors: Sven GÖTHE, Björn ATTHOFF
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Patent number: 10934617Abstract: 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: GrantFiled: November 16, 2011Date of Patent: March 2, 2021Assignee: CUPTRONIC TECHNOLOGY LTD.Inventors: Sven Göthe, Björn Atthoff, Karl-Gunnar Larsson
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Patent number: 10822702Abstract: 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: GrantFiled: October 28, 2016Date of Patent: November 3, 2020Assignee: CUPTRONIC TECHNOLOGY LTD.Inventors: Björn Atthoff, Sven Göthe
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Patent number: 10774424Abstract: 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: GrantFiled: October 28, 2016Date of Patent: September 15, 2020Assignee: CUPTRONIC TECHNOLOGY LTD.Inventors: Björn Atthoff, Sven Göthe
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Patent number: 9889471Abstract: 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: GrantFiled: November 5, 2014Date of Patent: February 13, 2018Assignee: Cuptronic Technology Ltd.Inventors: Sven Göthe, Björn Atthoff
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Publication number: 20170044672Abstract: 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: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Inventors: Björn ATTHOFF, Sven GÖTHE
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Publication number: 20170044670Abstract: 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: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Inventors: Björn Atthoff, Sven Göthe
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Publication number: 20150056410Abstract: 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: ApplicationFiled: November 5, 2014Publication date: February 26, 2015Inventors: Sven GÖTHE, Björn ATTHOFF
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Publication number: 20140017575Abstract: 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: ApplicationFiled: November 16, 2011Publication date: January 16, 2014Applicant: CUPTRONIC TECHNOLOGY LTD.Inventors: Sven Göthe, Björn Atthoff, Karl-Gunnar Larsson
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Patent number: 8372519Abstract: 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: GrantFiled: May 4, 2009Date of Patent: February 12, 2013Assignee: Calignum Technologies ABInventors: Sven Göthe, Ove Lindström, Kristian Lough-Grimsgaard, Eric Sjöberg
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Publication number: 20090280344Abstract: 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: ApplicationFiled: May 4, 2009Publication date: November 12, 2009Inventors: Sven Gothe, Ove Lindstrom, Kristian Lough-Grimsgaard, Eric Sjoberg
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Publication number: 20050189519Abstract: 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: ApplicationFiled: February 25, 2005Publication date: September 1, 2005Inventors: Sven Gothe, Lennart Castwall
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Patent number: 5873991Abstract: 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: GrantFiled: April 2, 1997Date of Patent: February 23, 1999Assignee: Pharmacia Biotech ABInventors: Sven Gothe, Anders Hult, Jan-Olof Johansson, Lennart K.ang.gedal, Anna Sylwan
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Patent number: 5223591Abstract: 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: GrantFiled: November 25, 1991Date of Patent: June 29, 1993Assignee: Ciba-Geigy CorporationInventors: Johan Nyander, Sonny Jonsson, Bjorn Elman, Ann-Britt Pettersson, Per-Erik Sundell, Sven Gothe, Jan-Erik Nystrom