Patents by Inventor Friedhelm Halfenberg

Friedhelm Halfenberg 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).

  • Publication number: 20100068427
    Abstract: The present invention relates to an inkjet recording material comprising: a) a substrate b) at least one ink-accepting layer applied to at least one side of the substrate, containing at least one pigment selected from the group consisting of calcium carbonate, calcined clay, satin white or mixtures thereof, the mean particle size of the pigment being from 0.1 ?m to 1.5 ?m, c) at least one surface layer applied to the at least one ink-accepting layer, the surface layer containing cationic inorganic particles, the inkjet recording material having a gloss in the range from 10 to 60, measured according to DIN 54502 R? (45°) (measuring angle 45°), on the side to which the at least one surface layer was applied, and the density of the inkjet recording material being greater than or equal to 0.95 g/cm3, and to a process for its production.
    Type: Application
    Filed: August 10, 2007
    Publication date: March 18, 2010
    Applicant: M-real Oyj
    Inventors: Andre Becker, David Croll, Dominik Fuchs, Friedhelm Halfenberg