Patents by Inventor Brigitte Burgmann

Brigitte Burgmann 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).

  • Process for the preparation of formulations comprising bismuth salts, and their use as catalyst component in cathodic electrodeposition coating materials
    Patent number: 5936013
    Abstract: The invention pertains to a method for producing preparations containing bismuth salts, wherein bismuth oxide is reacted in a specific way with lactic acid and the resulting mixture of bismuthyl lactate and bismuth lactate is dispersed in a binder. These preparations are used as catalytic components in electrophoretic paints to be applied by cathodic deposition. Dipping paints of this kind have excellent application and film properties. This obviates the need to use lead and tin compounds as catalysts.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 10, 1999
    Assignee: Vianova Resins AG
    Inventors: Roland Feola, Brigitte Burgmann, Franz Kurzmann