Patents by Inventor Frank-Jürgen Krumpolt

Frank-Jürgen Krumpolt 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).

  • Method for multi-layered coating of substrates
    Patent number: 6534130
    Abstract: A process for the preparation of a multi-layer coating wherein a colour- and/or special effect-imparting base lacquer coating compound is applied to a substrate optionally precoated with a primer and/or primer surfacer coating compound and/or further coating compounds and a clear lacquer layer is then applied to the colour- and/or special effect-imparting base lacquer layer, wherein the colour- and/or special effect-imparting base lacquer coating compound used is one which contains binders which can be cured by free-radical and/or cationic polymerisation under the action of high-energy radiation.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: March 18, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karin Maag, Helmut Löffler, Werner Lenhard, Christine Kurz, Frank-Jürgen Krumpolt, Volker Rekowski