Patents by Inventor Norbert Schildan

Norbert Schildan 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).

  • Aqueous adhesive dispersions
    Patent number: 8519047
    Abstract: Aqueous polymer dispersions based on polychloroprene, a process for their preparation and their use in adhesive formulations. The aqueous polymer dispersion is obtained by a) preparing an aqueous polychloroprene dispersion with a gel content of 0.1 wt. %-30 wt. %, based on the polymer, prepared by polymerization at 0° C.-70° C. of chloroprene and, optionally, ethylenically unsaturated monomers which can be copolymerized with chloroprene and b) subsequently storing the dispersion at temperatures of from 50° C.-110° C. until the gel content has risen by at least 10 wt. % to 1-60 wt. %, based on the polymer.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 27, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Rüdiger Musch, Christiane Oppenheimer-Stix, Knut Panskus, Renke Mottweiler, Norbert Schildan
  • Aqueous adhesive dispersions
    Publication number: 20050143498
    Abstract: Aqueous polymer dispersions based on polychloroprene, a process for their preparation and their use in adhesive formulations. The aqueous polymer dispersion is obtained by a) preparing an aqueous polychloroprene dispersion with a gel content of 0.1 wt. %-30 wt. %, based on the polymer, prepared by polymerization at 0° C.-70° C. of chloroprene and, optionally, ethylenically unsaturated monomers which can be copolymerized with chloroprene and b) subsequently storing the dispersion at temperatures of from 50° C.-110° C. until the gel content has risen by at least 10 wt. % to 1-60 wt. %, based on the polymer.
    Type: Application
    Filed: April 16, 2004
    Publication date: June 30, 2005
    Inventors: Rudiger Musch, Christiane Oppenheimer-Stix, Knut Panskus, Renke Mottweiler, Norbert Schildan
  • Adhesive compositions based on polychloroprene dispersions
    Patent number: 6767947
    Abstract: The present invention relates to adhesive compositions containing a polychloroprene dispersion containing a tricyclic diterpenecarboxylic acid having at least two conjugated C═C double bonds per molecule. The present invention also relates to a process for preparing these adhesive compositions and to their use as contact adhesives for organic and inorganic substrates.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: July 27, 2004
    Assignee: Bayer Aktiengesellischaft
    Inventors: Rüdiger Musch, Knut Panskus, Norbert Schildan
  • Adhesive compositions based on polychloroprene dispersions
    Publication number: 20020120045
    Abstract: The present invention relates to adhesive compositions containing a polychloroprene dispersion containing a tricyclic diterpenecarboxylic acid having at least two conjugated C═C double bonds per molecule.
    Type: Application
    Filed: September 14, 2001
    Publication date: August 29, 2002
    Inventors: Ruediger Musch, Knut Panskus, Norbert Schildan