Patents by Inventor Marcel Roth

Marcel Roth 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: 10792702
    Abstract: The invention relates to a method for producing a silane-modified silicate. In order to obtain optimal corrosion protection properties, a silane compound according to the invention is at least partially hydrolyzed and/or condensed in the presence of a silicate compound at a pH value greater than or equal to 8 and then a pH value less than or equal to 7 is set by adding acid. The invention further relates to an aqueous acidic passivation composition for metal substrate coated with the passivation composition.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 6, 2020
    Assignee: EWALD DÖRKEN AG
    Inventors: Melanie Müller, Marcel Roth, Ingo Klüppel
  • Publication number: 20200276610
    Abstract: The invention relates to a method for producing a silane-modified silicate. In order to obtain optimal corrosion protection properties, a silane compound according to the invention is at least partially hydrolyzed and/or condensed in the presence of a silicate compound at a pH value greater than or equal to 8 and then a pH value less than or equal to 7 is set by adding acid. The invention further relates to an aqueous acidic passivation composition for metal substrate coated with the passivation composition.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Applicant: Ewald Dörken AG
    Inventors: Melanie MÜLLER, Marcel ROTH, Ingo KLÜPPEL
  • Patent number: 10731262
    Abstract: The present invention relates to a corrosion control coating, more particularly a high-temperature corrosion control coating, and to a method for producing it.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: August 4, 2020
    Assignee: Ewald Dörken AG
    Inventors: Marcel Roth, Kai Owczarek, Heike Mertens, Sandra Böhm, Vanessa Kurze, Gerhard Reusmann
  • Publication number: 20190352783
    Abstract: The invention relates to a coating system, more particularly a corrosion control coating system, for generating cathodic corrosion protection on a metallic substrate, comprising at least two layers, and also to a method for producing it and to a substrate coated with the coating system.
    Type: Application
    Filed: November 14, 2018
    Publication date: November 21, 2019
    Applicant: Ewald Dörken AG
    Inventors: Marcel ROTH, Gerhard REUSMANN, Sandra BÖHM
  • Patent number: 10414902
    Abstract: An anti-corrosive coating compound with: component I: cathodically active metal particles and component II: binder in the presence of water. In order to improve the service life of the coating compound, it is provided that an oxygen compound or a mixture of oxygen compounds of the subgroup elements, namely ammonium, alkaline or earth alkaline salts of an acid of a transition metal, is added as component III. The invention further relates to a method for producing an anti-corrosive coating compound, a workpiece coated with the anti-corrosive coating compound and the use of an oxygen compound or a mixture of oxygen compounds of the subgroup elements in an anti-corrosive coating compound.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: September 17, 2019
    Assignee: Ewald Dörken AG
    Inventors: Carolina Battaglia, Sandra Boehm, Verena Grossmann, Gerhard Reusmann, Marcel Roth, Susanne Walter
  • Patent number: 10308819
    Abstract: The invention relates to an anticorrosive coating composition. In order to provide an anticorrosive coating composition which cures at room temperature, provision is made for the anticorrosive coating composition to comprise at least one polysiloxane and metal particles and also at least one crosslinker, the coating composition crosslinking chemically at room temperature. The invention further relates to a method for applying the anticorrosive coating composition and also to the coated substrate.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 4, 2019
    Assignee: Ewald Dörken AG
    Inventors: Marcel Roth, Vanessa Kurze, Marcus Lämmer, Sandra Böhm, Verena Grossmann, Gerhard Reusmann
  • Patent number: 10227686
    Abstract: The invention relates to a wet-chemical pretreatment of zinc surfaces prior to applying a corrosion-protection coating, which deposits a thin inorganic coating of oxide and/or metallic iron. An iron layer structure which is applied according to the invention, hereinafter referred to as ferrization, improves the achievable corrosion protection of wet-chemical conversion coatings on zinc surfaces. Furthermore, the ferrization process causes both a reduction of the contact corrosion of joined metal components which have zinc and iron surfaces as well as a reduction of corrosive coating migration on cut edges of galvanized steel strips with coating layer structures. In particular, the invention relates to an alkaline composition containing an iron ion source, a reducing agent based on oxoacids of nitrogen and phosphorus, and water-soluble organic carboxylic acids with an amino group at the ?, ?, or ? position with respect to the acid group and/or the water-soluble salts thereof.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: March 12, 2019
    Assignee: Henkel AG & Co. KGaA
    Inventors: Andreas Arnold, Michael Wolpers, Marcel Roth, Uta Sundermeier
  • Publication number: 20180305558
    Abstract: The invention relates to modified metal particles for corrosion protection coatings as well as a method for their production and their use.
    Type: Application
    Filed: October 26, 2017
    Publication date: October 25, 2018
    Applicant: Ewald Dörken Ag
    Inventors: Carolina BATTAGLIA, Susanne WALTER, Verena GROSSMANN, Marcel ROTH, Sandra BÖHM, Gerhard REUSMANN
  • Patent number: 10011907
    Abstract: A method for the manufacture of a substrate provided with a chromium VI-free and a cobalt-free passivation by the application of a first acidic passivation and a second alkaline passivation, containing a silane-modified and/or a siloxane modified silicate, with which an improved protection against corrosion is achieved, an aqueous, acidic composition for passivating and a passivated substrate, and a device for applying the passivation.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: July 3, 2018
    Assignee: Ewald Doerken AG
    Inventors: Marcel Roth, Christopher Koester, Ingo Klueppel, Verena Grossmann, Gerhard Reussmann
  • Patent number: 10011915
    Abstract: The invention relates to a two-stage method for the anti-corrosive pretreatment of tinplate, in which an anti-corrosive primer coating is applied in a first step, in which the tinplate is anodically polarized in an electrolyte containing at least one inert water-soluble salt and is then in a second step, brought in contact with an acidic aqueous composition containing water-soluble inorganic compounds of the elements Zr, Ti, Hf, and/or Si.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 3, 2018
    Assignee: Henkel AG & Co. KGaA
    Inventors: Uta Sundermeier, Michael Wolpers, Marcel Roth, Jurgen Stodt
  • Patent number: 9909227
    Abstract: The invention relates to a method for the anti-corrosive pretreatment of tinplate, in which an anti-corrosive primer coating is applied in a single step, said primer coating effectively preventing the shiny metal surface of the pretreated tinplate from turning black when the pretreated tinplate of the invention that is provided with a topcoat is in contact with liquids releasing or containing sulfur compounds and with food containing protein. In the disclosed method, the tinplate is anodically polarized in an electrolyte containing silicates of formula M2O.nSiO2, where M is an alkali metal ion or quaternary ammonium ion and n is a natural number between 0.8 and 7. Tinplate pretreated according to the invention can be used in particular for the production of food-safe packaging such as beverage cans or tin cans.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 6, 2018
    Assignee: Henkel AG & Co. KGaA
    Inventors: Uta Sundermeier, Michael Wolpers, Marcel Roth, Jürgen Stodt
  • Publication number: 20170348730
    Abstract: The invention relates to a method for producing a silane-modified silicate. In order to obtain optimal corrosion protection properties, a silane compound according to the invention is at least partially hydrolyzed and/or condensed in the presence of a silicate compound at a pH value greater than or equal to 8 and then a pH value less than or equal to 7 is set by adding acid. The invention further relates to an aqueous acidic passivation composition for metal substrate coated with the passivation composition.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 7, 2017
    Applicant: Ewald Dörken AG
    Inventors: Melanie MÜLLER, Marcel ROTH, Ingo KLÜPPEL
  • Patent number: 9777165
    Abstract: The present invention relates to an alkaline aqueous composition on the basis of water glass and organosilanes with non-hydrolysable substituents which have a primary amino group in the substituents, for providing corrosion-protected coatings on metal surfaces which convey good reshaping properties in metal processing. For the desired functionality, the compositions according to the invention contain the organosilane and the water glass in a predetermined ration. The invention further relates to a method for pre-treating metal surfaces using the alkaline aqueous compositions, which method provides excellent results with regard to corrosion protection, varnish adhesion and reshapability, particularly on aluminum and on steel strips provided with aluminum alloy metal coatings.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 3, 2017
    Assignee: Henkel AG & Co. KGaA
    Inventors: Juergen Stodt, Michael Wolpers, Marcel Roth
  • Patent number: 9637662
    Abstract: The present invention relates to a method for applying a weldable anti-scale coat to steel, comprising producing a thin silicatic layer free from metal pigments on the metallic steel surface, and subsequently applying and curing a wet film of a curable, pigment-containing paint; wherein said paint comprises, in solution in a liquid phase, a binder, comprising hydrolysates and/or condensates of at least one silane/siloxane and/or at least one silicone resin; at least one particulate metallic pigment of AI and at least one particulate metallic pigment of Bi. The present invention also relates to application of an organic paint film system obtainable in the method of the invention, a paint formula useful in the method of the invention, a hot forming operation on steel coated in the method of the invention; and a hot-formed steel component suitable for electrical spot welding processes.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 2, 2017
    Assignee: Henkel AG & Co. KGaA
    Inventors: Marcel Roth, Reiner Wark, Thomas Moeller, Eva Wilke, Uta Sundermeier, Manuela Goeske-Krajnc
  • Publication number: 20170101716
    Abstract: The present invention relates to a corrosion control coating, more particularly a high-temperature corrosion control coating, and to a method for producing it.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 13, 2017
    Inventors: Marcel ROTH, Kai OWCZAREK, Heike MERTENS, Sandra BÖHM, Vanessa KURZE, Gerhard REUSMANN
  • Publication number: 20170101541
    Abstract: The invention relates to an anticorrosive coating composition. In order to provide an anticorrosive coating composition which cures at room temperature, provision is made for the anticorrosive coating composition to comprise at least one polysiloxane and metal particles and also at least one crosslinker, the coating composition crosslinking chemically at room temperature. The invention further relates to a method for applying the anticorrosive coating composition and also to the coated substrate.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 13, 2017
    Inventors: Marcel ROTH, Vanessa KURZE, Marcus LÄMMER, Sandra BÖHM, Verena GROSSMANN, Gerhard REUSMANN
  • Patent number: 9522974
    Abstract: The present invention relates to aqueous-based primer composition, comprising at least one thermosetting, self-emulsifying epoxy resin composition; at least one thermosetting, non-self-emulsifying resin composition; water; and at least one curative.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: December 20, 2016
    Assignee: Henkel AG & Co. KGaA
    Inventors: Emilie Barriau, Marcel Roth, Ulrike Schmidt-Freytag, Katja Klophaus
  • Patent number: 9309602
    Abstract: The present invention relates to a method for the metallizing pretreatment of galvanized and/or alloy-galvanized steel surfaces or joined metallic components having at least some zinc surfaces, wherein a thin surface layer of iron is deposited on the zinc surfaces from an aqueous electrolyte containing water-soluble compounds that are a source of iron cations. The method is performed at least partially or continuously under application of an electrolytic voltage, the galvanized and/or alloy-galvanized steel surfaces being connected as cathode. The aqueous electrolyte additionally contains an accelerator selected from oxo acids of the elements phosphorus, nitrogen and/or sulfur, the elements phosphorus, nitrogen and/or sulfur being present in moderate oxidation states.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 12, 2016
    Assignee: Henkel AG & Co. KGaA
    Inventors: Michael Wolpers, Marcel Roth, Jürgen Stodt, Andreas Arnold
  • Publication number: 20160032110
    Abstract: An anti-corrosive coating compound with: component I: cathodically active metal particles and component II: binder in the presence of water. In order to improve the service life of the coating compound, it is provided that an oxygen compound or a mixture of oxygen compounds of the subgroup elements, namely ammonium, alkaline or earth alkaline salts of an acid of a transition metal, is added as component III. The invention further relates to a method for producing an anti-corrosive coating compound, a workpiece coated with the anti-corrosive coating compound and the use of an oxygen compound or a mixture of oxygen compounds of the subgroup elements in an anti-corrosive coating compound.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 4, 2016
    Applicant: Ewald Doerken AG
    Inventors: Carolina Battaglia, Sandra Boehm, Verena Grossmann, Gerhard Reusmann, Marcel Roth, Susanne Walter
  • Publication number: 20150275044
    Abstract: The present invention relates to a method for applying a weldable anti-scale coat to steel, comprising producing a thin silicatic layer free from metal pigments on the metallic steel surface, and subsequently applying and curing a wet film of a curable, pigment-containing paint; wherein said paint comprises, in solution in a liquid phase, a binder, comprising hydrolysates and/or condensates of at least one silane/siloxane and/or at least one silicone resin; at least one particulate metallic pigment of Al and at least one particulate metallic pigment of Bi. The present invention also relates to application of an organic paint film system obtainable in the method of the invention, a paint formula useful in the method of the invention, a hot forming operation on steel coated in the method of the invention; and a hot-formed steel component suitable for electrical spot welding processes.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventors: Marcel Roth, Reiner Wark, Thomas Moeller, Eva Wilke, Uta Sundermeier, Manuela Goeske-krajnc