Patents by Inventor Robert Diemunsch

Robert Diemunsch 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).

  • Multilayer, UV-radiation stabilized polycarbonate panel
    Patent number: 5098790
    Abstract: Synthetic resin panel consisting of a core layer (1) of polycarbonate resin covered on at least one of its outer sides by a storage layer (2) containing between 5 and 15% by weight of an UV absorber, and on that side of said storage layer facing away from said core layer, by a cover layer (3) of synthetic resin containing an UV absorber, wherein said UV absorber, incorporated in said cover layer (3), different from said UV absorber incorporated in said storage layer (2), is of low volatility and is present at a concentration exceeding 2% by weight.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: March 24, 1992
    Assignee: Kaysersberg Packaging, S.A.
    Inventors: Robert Diemunsch, Roland Zeller