Patents by Inventor Hermann Bruggemann

Hermann Bruggemann 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: 6162506
    Abstract: The invention relates to an aqueous coating material. The aqueous coating material comprises 5-95% by weight (based on the overall binder content) of a binder component a) and 5-95% by weight (based on the overall binder content) of a binder component b). The binder component a) is obtainable by free-radical polymerization of an aqueous dispersion of a polyurethane resin with ethylenically unsaturated monomers and in the presence of a water-insoluble initiator. The binder component b) is obtainable by polymerizing ethylenically unsaturated monomers in an organic solvent or in a mixture of organic solvents and in the presence of a polyurethane resin and converting the resulting binder component b) into an aqueous dispersion.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: December 19, 2000
    Assignee: BASF Coatings AG
    Inventors: Bernhard Lettmann, Hermann Bruggemann, Michael Hartung