Patents by Inventor Norbert Schül

Norbert Schül 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).

  • Pigment mixture
    Patent number: 6773499
    Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: August 10, 2004
    Assignee: Merck Patent GmbH
    Inventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Johann Munz
  • Pigment preparation and its use especially in printing inks
    Patent number: 6702885
    Abstract: The present invention relates to a pigment preparation comprising a mixture of coated and/or uncoated SiO2 flakes, one or more special-effect pigments, and a phosphate derivative, and to the use thereof, especially in printing inks.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: March 9, 2004
    Assignee: Merck Patent Gesellschaft Mit Beschrankter
    Inventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Gerhard Herget
  • Pigment mixture
    Patent number: 6632275
    Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being Sio2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 14, 2003
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Johann Munz
  • Colored and coated plateletlike pigments
    Patent number: 6630018
    Abstract: The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: October 7, 2003
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Gerd Bauer, Karl Osterried, Christoph Schmidt, Reiner Vogt, Helge-Bettina Kniess, Michael Uhlig, Norbert Schül, Günther Brenner
  • Pigment mixture
    Patent number: 6488756
    Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being platelet-shaped, acicular or spherical colorants or fillers, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: December 3, 2002
    Assignee: Merck Patent Gesellschaft
    Inventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Uta Maurer