Patents by Inventor Mathias Kuntz

Mathias Kuntz 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).

  • Polymer beads
    Publication number: 20020055555
    Abstract: The invention relates to polymer beads comprising an anisotropic polymer material with helically twisted structure, to their use in reflective films, spraying or printing inks or as pigments, for optical or electrooptical, decorative or security applications, to a reflective film comprising one or more polymer beads in a transmissive binder, and to a security marking or security device comprising one or more polymer beads or comprising a reflective film.
    Type: Application
    Filed: September 18, 2001
    Publication date: May 9, 2002
    Applicant: MERCK PATENTGESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Mathias Kuntz, David Coates, Simon Greenfield, John Patrick
  • Process for the preparation of inclusion pigments
    Patent number: 5753026
    Abstract: Reaction spray process for preparing inclusion pigments by suspending the pigment to be encapsulated in an aqueous solution or suspension of a precursor of the inclusion material, spraying the suspension, with or without the addition of nitric acid and fuel, in a tubular reactor heated at from 850.degree. to 1100.degree. C., separating the inclusion pigment from the product stream and, if desired post-calcining the pigment at a temperature of at least 816.degree. C.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: May 19, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Mathias Kuntz, Hubert Linne, Joachim Weitzel, Dieter Heinz, Rodney Riddle