Patents by Inventor Jens Haas

Jens Haas 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).

  • Continuous method for treating the surface of metal strips
    Patent number: 8372216
    Abstract: A continuous method for surface treatment of metal strips applies a finish coat having a thickness of not more than 3 ?m, the apparatus employed for application being equipped with at least one IR sensor which faces a coated side of the strip, operates in reflection geometry, and serves to measure the coat thickness of the finish coat, with the strip running.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: February 12, 2013
    Assignee: BASF SE
    Inventors: Guido Vandermeulen, Bernd Strubel, Helmut Witteler, Jessica Neumann, Walter Bertkau, Bernd Laubusch, Jens Haas, Mirjam Herrlich-Loos, Helmut Löw, Walter Braumandl
  • METHOD FOR PASSIVATING A METALLIC SURFACE
    Publication number: 20120080120
    Abstract: The present invention relates to a method for passivating metallic surfaces, wherein the metal surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one polyamine (P), the pH of the composition being in the range from 0.5 to 2.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 5, 2012
    Applicant: BASF SE
    Inventors: Achim Feßenbecker, Jens Haas, Frank Richter, Walter Bertkau, Christian Schade, Helmut Witteler
  • CONTINUOUS METHOD FOR TREATING THE SURFACE OF METAL STRIPS
    Publication number: 20110017352
    Abstract: A continuous method for surface treatment of metal strips applies a finish coat having a thickness of not more than 3 ?m, the apparatus employed for application being equipped with at least one IR sensor which faces a coated side of the strip, operates in reflection geometry, and serves to measure the coat thickness of the finish coat, with the strip running.
    Type: Application
    Filed: October 9, 2009
    Publication date: January 27, 2011
    Applicant: BASF SE
    Inventors: Guido Vandermeulen, Bernd Strubel, Helmut Witteler, Jessica Neumann, Walter Bertkau, Bernd Laubusch, Jens Haas, Mirjam Herrlich-Loos, Helmut Löw, Walter Braumandl
  • Method for the passivation of metal surfaces with polymers containing acid groups
    Patent number: 7749337
    Abstract: Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: July 6, 2010
    Assignee: BASF SE
    Inventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Göthlich, Jens Haas, Frank Klippel, Gunnar Schornick
  • Method for the Passivation of Metal Surfaces with Polymers Containing Acid Groups
    Publication number: 20070240792
    Abstract: Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.
    Type: Application
    Filed: June 13, 2006
    Publication date: October 18, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Gothlich, Jens Haas, Frank Klippel, Gunnar Schornick
  • Method for electrolytic galvanizing using electrolytes containing alkane sulphonic acid
    Patent number: 6811673
    Abstract: Matt surfaces are obtained when a metal is coated electrolytically with zinc from an electrolyte solution which contains zinc sulfate or an alkanesulfonate of zinc or mixtures thereof, and optionally further metal salts, sulfuric acid or an alkanesulfonic acid or a mixture thereof, and at least one additive selected from nitrogen-containing surface-active compounds, which may be ionic or nonionic, sulfur-containing anionic surface-active compounds, and surface-active compounds based on multifunctional alcohols having at least three hydroxyl groups.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Gregor Brodt, Jens Haas, Werner Hesse, Hans-Ulrich Jäger
  • Method for electrolytic galvanising using electrolytes containing alkane sulphonic acid
    Publication number: 20030141195
    Abstract: The invention relates to a process for the electrolytic coating of metals with zinc or a zinc alloy in which matt surfaces are obtained, by deposition of zinc from an electrolyte solution comprising a zinc salt selected from zinc sulfate or an alkanesulfonate of zinc or mixtures thereof, and, if desired, further metal salts, an acid selected from sulfuric acid or an alkanesulfonic acid or a mixture of the two acids, and at least one additive for improving the surface roughness and preventing dendritic edge growth, selected from nitrogen-containing surface-active compounds, which may be ionic or nonionic, sulfur-containing anionic surface-active compounds, and surface-active compounds based on multifunctional alcohols having at least three hydroxyl groups.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 31, 2003
    Inventors: Gregor Brodt, Jens Haas, Werner Hesse, Hans-Ulrich Jager