Patents by Inventor Hermann-Josef Weidenhaupt

Hermann-Josef Weidenhaupt 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).

  • Silica-filled rubber compounds containing mercaptoalkyl silyl ethers and guanidines
    Patent number: 5569721
    Abstract: Rubber compounds containing at least one rubber, a crosslinking agent, a silica-containing filler, optionally other rubber auxiliaries and at least one of the compounds corresponding to formulae (I) and (II): ##STR1## compound (I) being used in quantities of 0.1 to 15% by weight and compound (II) being used in quantities of 0.05 to 5% by weight, based on the quantity of the particular rubber used, and their use for the production of rubber vulcanizates.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 29, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt