Patents by Inventor Werner Sarfert

Werner Sarfert 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 preparation with modified colophony resins
    Patent number: 6432195
    Abstract: The invention relates to a non-dusting, homogeneous pigment preparation which is distinguished by the fact that it comprises at least 40% by weight of one or more effect pigments and 0.5-59.5% by weight of a modified colophony resin, based on the pigment preparation, and the use thereof, in particular for the production of dry preparations. The pigment preparation according to the invention and the dry preparations produced therefrom are particularly suitable for the pigmenting of paints, coatings, powder coatings, printing inks and plastics.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: August 13, 2002
    Assignees: Merck Patent Gesellschaft mit beschraenkter Haftung, Lackharzwerke Robert Kraemer GmbH & Co.
    Inventors: Thomas Rathschlag, Carsten Griessmann, Sabine Schoen, Werner Sarfert
  • Pigment preparation with modified colophony resins
    Publication number: 20020023571
    Abstract: The invention relates to a non-dusting, homogeneous pigment preparation which is distinguished by the fact that it comprises at least 40% by weight of one or more effect pigments and 0.5-59.5% by weight of a modified colophony resin, based on the pigment preparation, and the use thereof, in particular for the production of dry preparations. The pigment preparation according to the invention and the dry preparations produced therefrom are particularly suitable for the pigmenting of paints, coatings, powder coatings, printing inks and plastics.
    Type: Application
    Filed: May 14, 2001
    Publication date: February 28, 2002
    Inventors: Thomas Rathschlag, Carsten Griessmann, Sabine Schoen, Werner Sarfert