Patents by Inventor Holger Glaum

Holger Glaum 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).

  • PYROGENICALLY PRODUCED SILICON DIOXIDE DOPED BY MEANS OF AN AEROSOL
    Publication number: 20090301345
    Abstract: Pyrogenically produced silicon dioxide doped with aluminum oxide by means of an aerosol is produced by introducing an aqueous aerosol of an aluminum salt into the flame of a pyrogenic silica producing flame hydrolysis method or a flame oxidation method. The silicon dioxide doped with Al2O3 by means of an aerosol may inter alia be used in the production of inkjet paper or inkjet films.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 10, 2009
    Inventors: Helmut Mangold, Mitsuru Ochiai, Holger Glaum, Astrid Muller
  • Coatings for inkjet media
    Patent number: 6840992
    Abstract: The present invention provides a coating for inkjet media, which includes at least one hydrophobic filler particle; and a binder. Another embodiment of the invention provides an inkjet media, which includes the above-described coating coated on a substrate. Another embodiment of the invention provides a method of inkjet printing, which includes inkjet printing at least one inkjet ink onto a substrate coated with the above-described coating.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: January 11, 2005
    Assignee: Degussa AG
    Inventors: Holger Glaum, Astrid Mueller
  • Pyrogenically produced silicon dioxide doped by means of an aerosol
    Publication number: 20030185739
    Abstract: Pyrogenically produced silicon dioxide doped with aluminum oxide by means of an aerosol is produced by introducing an aqueous aerosol of an aluminum salt into the flame of a pyrogenic silica producing flame hydrolysis method or a flame oxidation method. The silicon dioxide doped with Al2O3 by means of an aerosol may inter alia be used in the production of inkjet paper or inkjet films.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 2, 2003
    Inventors: Helmut Mangold, Mitsuru Ochiai, Holger Glaum, Astrid Muller
  • Coatings for inkjet media
    Publication number: 20020040661
    Abstract: The present invention provides a coating for inkjet media, which includes at least one hydrophobic filler particle; and a binder. Another embodiment of the invention provides an inkjet media, which includes the above-described coating coated on a substrate. Another embodiment of the invention provides a method of inkjet printing, which includes inkjet printing at least one inkjet ink onto a substrate coated with the above-described coating.
    Type: Application
    Filed: April 11, 2001
    Publication date: April 11, 2002
    Applicant: Degussa AG
    Inventors: Holger Glaum, Astrid Mueller
  • Ink mixture
    Patent number: 6224660
    Abstract: The ink mixture contains at least one organosilane and optionally at least one hydrophobic silicic acid. The ink mixture can be used as a printing ink, especially as an ink for ink-jet printing.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: May 1, 2001
    Assignee: Degussa-Huls Aktiengesellschaft
    Inventors: Andreas Stübbe, Wolfgang Lortz, Thomas Göbel, Holger Glaum
  • Aluminum silicate suspension
    Patent number: 6207721
    Abstract: An aqueous aluminium silicate suspension having a content of aluminium silicate of at least 30 wt. % is prepared by liquefaction of the aluminium silicate filter cake or by dispersion of aluminium silicate powder in water with the addition of aluminium silicate powder, surfactant and aluminium sulfate. It can be employed in papermaking.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: March 27, 2001
    Assignee: Degussa-Huls Aktiengesellschaft
    Inventors: Holger Glaum, Jürgen Schubert
  • Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents
    Patent number: 5227022
    Abstract: A process is disclosed for bleaching wood pulp, cellulose or used paper by treatment the fibre material to be bleached before the bleaching steps with a natural or synthetic zeolite or a layer lattice silicate and an easily decomposable organic complex forming agent, e.g. citric acid.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: July 13, 1993
    Assignee: Degussa Aktiengesellschaft
    Inventors: Wolfgang Leonhardt, Kurt Schmidt, Hans U. Suess, Holger Glaum