Patents by Inventor Norbert Maurus

Norbert Maurus 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: 6875479
    Abstract: The invention relates to a method for coating a metal surface with an aqueous composition, characterized in that the composition contains, in addition to water: a) at least one organic film former that contains at least one water-soluble or water-dispersible polymer with an acid number ranging from 5 to 200, b) at least one particulate inorganic compound with an average particle diameter measured by a scanning electron microscope in the range of from 0.005 to 0.3?, c) at least one slip additive and/or at least one corrosion inhibitor, d) optionally at least one organic solvent, e) optionally at least one silane and/or siloxane, f) optionally at least one cross-linking agent, and g) optionally at least one chromium (VI) compound. The clean metal surface is contacted with the aqueous composition and a particle-containing film is formed on the metal surface which is then dried. The dried and optionally also cured film has a layer thickness ranging from 0.01 to 10 ?m.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: April 5, 2005
    Assignee: Chemetall GmbH
    Inventors: Christian Jung, Toshiaki Shimakura, Norbert Maurus, Heribert Domes
  • Publication number: 20050061655
    Abstract: The invention relates to a coating mixture for applying a polymeric, corrosion-preventing protective layer to a metallic base for protecting an edge area, a soldered point, a weld seam and/or a repair point or for sealing the seam of one or more optionally interjoined strips, metal sheets and/or shaped parts. According to the invention, the coating mixture is largely or entirely free of water and/or of organic solvents, whereby it contains at least one radically polymerizable binding agent and at least one compound that forms free radicals when subjected to the action of actinic radiation. This radically polymerizable compound is largely or completely cured with the formed free radicals when subjected to actinic irradiation.
    Type: Application
    Filed: December 2, 2002
    Publication date: March 24, 2005
    Inventors: Georg Gros, Norbert Maurus, Karl-Heinz Stellnberger, Marcus Schinzel
  • Publication number: 20040062873
    Abstract: The invention relates to a method for coating a metallic strip. The strip or optionally, the strip sections produced from said strip in the subsequent process, is/are first coated with at least one anticorrosion layer—according to an alternative form of embodiment, this can be left out—and then with at least one layer of a paint-like coating containing polymers. After being coated with at least one anticorrosion layer or after being coated with at least one layer of a paint-like coating, the strip is divided into strip sections. The coated strip sections are then formed, joined and/or coated with at least one (other) paint-like coating and/or paint coating.
    Type: Application
    Filed: September 9, 2003
    Publication date: April 1, 2004
    Inventors: Christian Jung, Toshiaki Shimakura, Norbert Maurus, Heribert Domes, Hardy Wietzoreck, Klaus Bittner, Thomas Kolberg, Marcus Schinzel
  • Publication number: 20040022951
    Abstract: The invention relates to a method for coating metallic surfaces by wetting one such surface with an aqueous dispersion containing, in addition to water, at least one UV-cross-linkable, water-soluble and/or water-dispersible resin, at least one wax as a deforming additive, at least one photoinitiator and at least one corrosion inhibitor. The coating is dried and hardened after being formed on the metallic surface. The invention is characterised in that the coating that is formed is up to 10 &mgr;m thick when hard, and in that during a condensation water test according to DIN 50017 KFW carried out directly after over 240 hours, said coating shows no signs of corrosion >5% on a test surface having been deformed by a mandrel with a diameter of 3.2 mm to 38 mm during a mandrel bending test according to DIN ISO 6860 without cracking the test surface.
    Type: Application
    Filed: June 20, 2003
    Publication date: February 5, 2004
    Inventor: Norbert Maurus
  • Publication number: 20040022950
    Abstract: The invention relates to a method for coating a metal surface with an aqueous composition, characterized in that the composition contains, in addition to water: a) at least one organic film former that contains at least one water-soluble or water-dispersible polymer with an acid number ranging from 5 to 200, b) at least one particulate inorganic compound with an average particle diameter measured by a scanning electron microscope in the range of from 0.005 to 0.3&mgr;, c) at least one slip additive and/or at least one corrosion inhibitor, d) optionally at least one organic solvent, e) optionally at least one silane and/or siloxane, f) optionally at least one cross-linking agent, and g) optionally at least one chromium (VI) compound. The clean metal surface is contacted with the aqueous composition and a particle-containing film is formed on the metal surface which is then dried. The dried and optionally also cured film has a layer thickness ranging from 0.01 to 10 &mgr;m.
    Type: Application
    Filed: June 20, 2003
    Publication date: February 5, 2004
    Inventors: Christian Jung, Toshiaki Shimakura, Norbert Maurus, Heribert Domes
  • Publication number: 20030185990
    Abstract: The invention relates to a method for coating a metal strip for use in the automotive, aircraft or aerospace industry. The strip or the strip sections produced on the basis thereof in a later step is/are first coated with at least one anticorrosive coating and then with at least one coating of a paint-like polymer-containing coating. The strip, once coated with at least one anticorrosive coating or once coated with at least one coat of a paint-like coating, is divided up in strip sections. Said coated strip sections are then formed, joined and/or coated with at least one (further) paint-like coating and/or coat of paint. The paint-like coating is achieved by coating the surface with an aqueous dispersion that contains, in addition to water, at least one UV-crosslinkable water-soluble and/or water-dispersible resin, at least one wax as the forming additive, at least one photoinitiator, and at least one corrosion inhibitor.
    Type: Application
    Filed: May 8, 2003
    Publication date: October 2, 2003
    Inventors: Klaus Bittner, Heribert Domes, Christian Jung, Norbert Maurus, Thomas Kolberg, Marcus Schinzel, Hardy Wietzoreck, Toshiaki Shimakura