Patents by Inventor Horst Gatzschmann

Horst Gatzschmann 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).

  • Patent number: 4448836
    Abstract: The pretreating of thermoplastic substrates containing carbonamide groups and an inorganic, fine-particulate adhesion filler, is improved to produce strongly adhering metal coatings thereon, by combining the following steps: the pickling is divided in at least two partial steps, where the first partial step comprises predipping in a pickling solution such as 50 to 96% sulfuric acid where the surface tension is lowered to at most 25 mN/m at 20.degree. C., and the pretreated plastic is dried at 70.degree. to 110.degree. C. before the actual galvanic metal deposition.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: May 15, 1984
    Assignee: Chemische Werke Huls AG
    Inventors: Horst Gatzschmann, Herbert Bertels, Hubertus Hafner, Alfred Schmid