Patents by Inventor Hans-Jurgen Brehm

Hans-Jurgen Brehm 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 preparations
    Patent number: 8613800
    Abstract: The present invention relates to pigment preparations comprising one or more effect pigments in platelet form, at least one antioxidant and a wax or wax mixture, and to the use thereof for pigmentation of application media, especially paints, coating materials, powder coating materials, polymers, and for production of masterbatches.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: December 24, 2013
    Assignee: Merck Patent GmbH
    Inventors: Volker Wilhelm, Hans Jurgen Brehm
  • PIGMENT PREPARATIONS
    Publication number: 20110088595
    Abstract: The present invention relates to pigment preparations comprising one or more effect pigments in platelet form, at least one antioxidant and a wax or wax mixture, and to the use thereof for pigmentation of application media, especially paints, coating materials, powder coating materials, polymers, and for production of masterbatches.
    Type: Application
    Filed: April 9, 2009
    Publication date: April 21, 2011
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Volker Wilhelm, Hans Jurgen Brehm
  • Pigment composition for plastics
    Patent number: 7390842
    Abstract: The invention includes pigment compositions for plastics comprising one or more flake-form effect pigments, a carrier material and one or more fluorine-containing polymers, to a process for the preparation of the pigment compositions, and to the use thereof for pigmenting plastics and for the production of masterbatches.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: June 24, 2008
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Manfred Kieser, Emil F. Aust, Hans-Jürgen Brehm
  • Plastic part comprising lustrous pigments and filler particles
    Patent number: 7019048
    Abstract: The invention relates to a plastic part having lustrous pigments and filler particles. Moldings of this plastic part exhibit a pronounced glitter effect.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: March 28, 2006
    Assignee: MERCK Gesellschaft mit beschraenkter Haftung
    Inventors: Hans-Jürgen Brehm, Manfred Kieser, Emil Aust
  • Pigment composition for plastics
    Publication number: 20050143493
    Abstract: The invention includes pigment compositions for plastics comprising one or more flake-form effect pigments, a carrier material and one or more fluorine-containing polymers, to a process for the preparation of the pigment compositions, and to the use thereof for pigmenting plastics and for the production of masterbatches.
    Type: Application
    Filed: October 1, 2004
    Publication date: June 30, 2005
    Inventors: Manfred Kieser, Emil Aust, Hans-Jurgen Brehm
  • Plastic part comprising lustrous pigments and filler particles
    Publication number: 20020120051
    Abstract: The invention relates to a plastic part having lustrous pigments and filler particles. Moldings of this plastic part exhibit a pronounced glitter effect.
    Type: Application
    Filed: February 11, 2002
    Publication date: August 29, 2002
    Applicant: Merck Patent GmbH
    Inventors: Hans-Jurgen Brehm, Manfred Kieser, Emil Aust