Patents by Inventor Jan Spitzer

Jan Spitzer 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).

  • Use of polymer dispersions as binding agents for sealing compounds and coating compounds
    Patent number: 6242515
    Abstract: The present invention relates to the use of compositions comprising at least one aqueous polymer dispersion wherein the polymer has carbonyl or oxirane groups (component a)) and at least one compound with at least two NH2 groups per molecule as sealing or coating compositions, especially for substrates with a hydrophobic surface. The present invention further relates to coating compositions containing such binder formulations.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: June 5, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Cheng-Le Zhao, Eckehardt Wistuba, Joachim Roser, Paul Fitzgerald, Jan Spitzer
  • Coating of substrates
    Patent number: 5763012
    Abstract: The present invention relates to a method of coating substrates, especially those with a hydrophobic surface, in which the substrate to be coated is coated with a coating composition whose binder is a formulation comprising an aqueous polymer dispersion in which the polymer has carbonyl or oxirane groups (component a)), and at least one compound having at least two NH.sub.2 groups per molecule, is applied to the substrate to be coated ?sic!. It also relates to coating compositions including such binder formulations, and furthermore to a method of sealing using a sealing composition including such formulations as its binder.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: June 9, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Cheng-Le Zhao, Eckehardt Wistuba, Joachim Roser, Paul Fitzgerald, Jan Spitzer