Patents by Inventor Gerd Aumann

Gerd Aumann 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).

  • Underseal composition, and process for the production thereof
    Patent number: 5135967
    Abstract: The present invention relates to an underseal composition for motor vehicles, comprising a finely divided vinyl chloride homopolymer, copolymer, terpolymer or graft polymer, a plasticizer, a stabilizer, and a filler comprising calcium carbonate particles, wherein at least a part of said filler is provided with a surface coating formed by a surface treatment agent which comprises at least one saturated or unsaturated carboxylic acid, fatty acid or substituted fatty acid, said carboxylic acid or fatty acid having from 2 to 32 carbon atoms and containing at least one polar group in addition to at least one --COOH group, or a salt of said carboxylic acid or fatty acid. The underseal composition has improved rheological properties.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: August 4, 1992
    Assignee: Deutsche Solvay-werke GmbH
    Inventors: Gerd Aumann, Gerd Klatte, Hans-Juergen Korte
  • Underseal composition, and process for the production thereof
    Patent number: 5015669
    Abstract: The present invention relates to an underseal composition for motor vehicles, comprising a finely divided vinyl chloride homopolymer, copolymer, terpolymer or graft polymer, a plasticizer, a stabilizer, and a filler comprising calcium carbonate particles, wherein at least a part of said filler is provided with a surface coating formed by a surface treatment agent which comprises an unsaturated monocarboxylic acid or fatty acid having from 4 to 14 carbon atoms, or a salt thereof. The underseal composition has improved rheological properties.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: May 14, 1991
    Assignee: Deutsche Solvay-Werke GmbH
    Inventors: Gerd Aumann, Matthias Giesen, Gerd Klatte, Hans-Jurgen Korte