Patents by Inventor Andreas Konigshofen
Andreas Konigshofen 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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Patent number: 11566338Abstract: The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorus layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorus layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.Type: GrantFiled: November 6, 2020Date of Patent: January 31, 2023Assignee: MacDermid Enthone GmbHInventors: Andreas Konigshofen, Ronny Kiefer
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Patent number: 11174555Abstract: The present invention relates to a chrome free etch for plating on plastic processes, wherein plastic surfaces are contacted in a first etching step with an etching solution at least comprising Mn(IV)-ions and, in a second etching step, with a solution at least comprising Mn(III)- and Mn(VII)-ions prior to the metal plating step.Type: GrantFiled: November 22, 2017Date of Patent: November 16, 2021Assignee: MacDermid Enthone GmbHInventors: Frank Noffke, Christoph Werner, Andreas Königshofen
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Patent number: 10988854Abstract: The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.Type: GrantFiled: December 10, 2019Date of Patent: April 27, 2021Assignee: MacDermid Enthone Inc.Inventors: Andreas Konigshofen, Maik Winkler
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Publication number: 20210054520Abstract: The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorus layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorus layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.Type: ApplicationFiled: November 6, 2020Publication date: February 25, 2021Inventors: Andreas Konigshofen, Ronny Kiefer
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Patent number: 10865495Abstract: The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorus layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, and method of producing such a corrosion protection layer system. The corrosion protection layer system provides corrosion resistance of the nickel-phosphorus layer against sodium chloride with the protection of the chromium layer produced from a trivalent process again magnesium salts, without the need for any post-treatment.Type: GrantFiled: September 23, 2016Date of Patent: December 15, 2020Assignee: MacDermid Enthone GmbHInventors: Andreas Konigshofen, Ronny Kiefer
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Publication number: 20200141022Abstract: The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.Type: ApplicationFiled: December 10, 2019Publication date: May 7, 2020Applicant: MacDermid Enthone Inc.Inventors: Andreas Konigshofen, Maik Winkler
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Patent number: 10544516Abstract: The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.Type: GrantFiled: September 23, 2016Date of Patent: January 28, 2020Assignee: MacDermid Enthone Inc.Inventors: Andreas Konigshofen, Maik Winkler
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Publication number: 20180266004Abstract: The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorus layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorus layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.Type: ApplicationFiled: September 23, 2016Publication date: September 20, 2018Applicant: Enthone GmbHInventors: Andreas Konigshofen, Ronny Kiefer
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Publication number: 20180266008Abstract: The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.Type: ApplicationFiled: September 23, 2016Publication date: September 20, 2018Inventors: Andreas Konigshofen, Maik Winkler
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Publication number: 20180044813Abstract: The invention relates to an aqueous inhibition composition for the inhibition of electrochemical metal plating on polymer surfaces, said inhibition composition comprising an inhibition agent selected from the group of compounds having at least one sulfur and at least one nitrogen atom as well as to a method for the inhibition of an insulated surface of a rack area. The inventive inhibition composition is capable to provide a solution for prohibiting unintended metallization on insulated areas of the racks when non-chromic etching is utilized for plating on plastics processes.Type: ApplicationFiled: February 23, 2016Publication date: February 15, 2018Inventors: Frank Noffke, Andreas Konigshofen, Axel Fuhrmann, Christoph Werner
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Patent number: 9617644Abstract: The present invention relates to a method for direct metallization of non-conductive substrates as well as a conductor solution used in such a method. According to the invention, it is proposed to contact a non-conductive substrate surface after activation by a noble metal colloid-containing activator solution with a conductor solution, which comprises a metal that is reducible by a metal of the activator solution, a complexing agent and a reducing agent.Type: GrantFiled: March 21, 2011Date of Patent: April 11, 2017Inventors: Andreas Königshofen, Danica Elbick, Markus Dahlhaus
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Patent number: 9222189Abstract: A process for treating the surface of a metal substrate comprising a constituent metal selected from the group consisting of Cr, Cu, Mn, Mo, Ag, Au, Pt, Pd, Rh, Pb, Sn, Ni, Zn, in some cases Fe, and alloys of these metals. An anodic potential is applied to the metal surface in an electrolytic circuit comprising the metal surface, a cathode, and an electrolytic solution that is in contact with the metal surface and in electrically conductive communication with the cathode. The electrolytic solution may contain an electrolyte comprising anions of phosphate, phosphonate, phosphite, phosphinate, nitrate, borate, silicate, molybdate, tungstate, carboxylate, oxalate and combinations thereof. The anion may comprise a polymer having a pendent moiety selected from the group consisting of phosphate, phosphonate, phosphite, phosphinate, sulfate, sulfonate, carboxylate and combinations thereof.Type: GrantFiled: November 13, 2009Date of Patent: December 29, 2015Assignee: Enthone Inc.Inventors: Danica Elbick, Ulrich Prinz, Andreas Konigshofen, Markus Dahlhaus
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Publication number: 20130316082Abstract: The present invention relates to a method for direct metallization of non-conductive substrates as well as a conductor solution used in such a method. According to the invention, it is proposed to contact a non-conductive substrate surface after activation by a noble metal colloid-containing activator solution with a conductor solution, which comprises a metal that is reducible by a metal of the activator solution, a complexing agent and a reducing agent.Type: ApplicationFiled: March 21, 2011Publication date: November 28, 2013Applicant: ENTHONE INC.Inventors: Andreas Königshofen, Danica Elbick, Markus Dahlhaus
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Publication number: 20120298519Abstract: An electrolytic composition for the deposition of a matt metal layer onto a substrate and deposition process where the composition comprises a source of metal from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, In, Sn, Sb, Re, Pt, Au, Bi, and combinations thereof; a substituted or unsubstituted polyalkylene oxide or its derivative as an emulsion and/or dispersion former; and a compound comprising fluorated or perfluorated hydrophobic chains or which is a polyalkylene oxide substituted quaternary ammonium compound as wetting agent; wherein the electrolytic composition forms a microemulsion and/or dispersion.Type: ApplicationFiled: June 4, 2012Publication date: November 29, 2012Applicant: ENTHONE INC.Inventors: Andreas Königshofen, Danica Elbick, Christoph Werner, Wolfgang Clauberg, Peter Pies, Andreas Möbius
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Patent number: 8192607Abstract: An electrolytic composition for the deposition of a matt metal layer onto a substrate and deposition process where the composition comprises a source of metal from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, In, Sn, Sb, Re, Pt, Au, Bi, and combinations thereof; a substituted or unsubstituted polyalkylene oxide or its derivative as an emulsion and/or dispersion former; and a compound comprising fluorated or perfluorated hydrophobic chains or which is a polyalkylene oxide substituted quaternary ammonium compound as wetting agent; wherein the electrolytic composition forms a microemulsion and/or dispersion.Type: GrantFiled: July 7, 2008Date of Patent: June 5, 2012Assignee: Enthone Inc.Inventors: Andreas Königshofen, Danica Elbick, Christoph Werner, Wolfgang Clauberg, Peter Pies, Andreas Möbius
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Publication number: 20110272284Abstract: A process for treating the surface of a metal substrate comprising a constituent metal selected from the group consisting of Cr, Cu, Mn, Mo, Ag, Au, Pt, Pd, Rh, Pb, Sn, Ni, Zn, in some cases Fe, and alloys of these metals. An anodic potential is applied to the metal surface in an electrolytic circuit comprising the metal surface, a cathode, and an electrolytic solution that is in contact with the metal surface and in electrically conductive communication with the cathode. The electrolytic solution may contain an electrolyte comprising anions of phosphate, phosphonate, phosphite, phosphinate, nitrate, borate, silicate, molybdate, tungstate, carboxylate, oxalate and combinations thereof. The anion may comprise a polymer having a pendent moiety selected from the group consisting of phosphate, phosphonate, phosphite, phosphinate, sulfate, sulfonate, carboxylate and combinations thereof.Type: ApplicationFiled: November 13, 2009Publication date: November 10, 2011Applicant: ENTHONE INC.Inventors: Danica Elbick, Ulrich Prinz, Andreas Königshofen, Markus Dahlhaus
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Publication number: 20110233065Abstract: This invention relates to an electrolyte as well as a method for the deposition of a matte metal layer on a substrate surface, where the matte metal layer is V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, In, Sn, Sb, Te, Re, Pt, Au, TI, Bi, or an alloy thereof, and there is a halogenide, sulphate, or sulfonate of an element of the group consisting of sodium, potassium, aluminum, magnesium, or boron to facilitate deposition of a smooth and even layer with much lower deposition metal requirements.Type: ApplicationFiled: July 8, 2009Publication date: September 29, 2011Applicant: ENTHONE INC.Inventors: Andreas Königshofen, Danica Elbick, Helmut Starke
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Patent number: 7578947Abstract: An etching composition for non-conductive substrates such as polyester, polyether, polyimide, polyurethane, epoxy resin, polysulfone, polyethersulfone, polyetherimide, and polyamide, comprising a halogenide and/or nitrate of a metal selected from the group consisting of Na, Mg, Al, Si, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ca, Zn, and combinations thereof such as FeCl3, FeCl2, TiCl3, CaCl2, CuCl2, CrCl3, ZnCl2, MgCl2, MnCl2, and Cr(NO3)3; and a related method for etching.Type: GrantFiled: October 30, 2006Date of Patent: August 25, 2009Assignee: Enthone Inc.Inventors: Mark Peter Schildmann, Ulrich Prinz, Andreas Königshofen
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Publication number: 20080302668Abstract: An electrolytic composition for the deposition of a matt metal layer onto a substrate and deposition process where the composition comprises a source of metal from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, In, Sn, Sb, Re, Pt, Au, Bi, and combinations thereof; a substituted or unsubstituted polyalkylene oxide or its derivative as an emulsion and/or dispersion former; and a compound comprising fluorated or perfluorated hydrophobic chains or which is a polyalkylene oxide substituted quaternary ammonium compound as wetting agent; wherein the electrolytic composition forms a microemulsion and/or dispersion.Type: ApplicationFiled: July 7, 2008Publication date: December 11, 2008Applicant: ENTHONE INC.Inventors: Andreas Konigshofen, Danica Elbick, Christoph Werner, Wolfgang Clauberg, Peter Pies, Andreas Mobius
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Publication number: 20080116076Abstract: The present invention relates to a method for the metallization of an electrically non-conductive substrate using a thiosulfate conductor which employs a thiosulfate-containing conductor solution further comprising an alkali metal ion selected from the group consisting of lithium, potassium, rubidium, caesium, and combinations thereof.Type: ApplicationFiled: February 8, 2007Publication date: May 22, 2008Applicant: Enthone Inc.Inventors: Andreas Konigshofen, Corinna Kesseler