Patents by Inventor Dirk Bonke

Dirk Bonke 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).

  • Hot-melt adhesive for glueing DVDs
    Patent number: 6767424
    Abstract: The present invention relates to a process for preparing a digital versatile disc. The process of the present invention includes providing a hot melt adhesive containing at least one thermoplastic elastomer, at least one hydrocarbon resin, at least one poly-&agr;-olefin, and at least one polar wax, and providing at least two disc blanks. The hot melt adhesive is applied directly or indirectly to at least one of the blanks and the blanks are bonded together using the hot melt adhesive. The present invention also provides a digital versatile disc containing the hot melt adhesive.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: July 27, 2004
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ruediger Butterbach, Ulrike Maassen, Dirk Bonke, Siegfried Kopannia