Patents Represented by Attorney Joachim Blum
  • Patent number: 7422767
    Abstract: A process for the production of a coating layer from a thermally curable coating composition on a substrate, comprising the successive steps: a) providing a substrate to be coated, b) applying a backing foil coated on one side with an uncured or at least only partially cured coating layer of a thermally curable coating composition, with its coated side on the entire surface or at least one sub-zone of the surface of the substrate, c) supplying thermal energy onto the entire coating applied in step b), and d) removing the backing foil from the coating which remains on the substrate; wherein the supply of thermal energy onto the coating proceeds prior to and/or after removal of the backing foil.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 9, 2008
    Assignee: E.I. du Pont de Nemours & Company
    Inventors: Thomas Fey, Oliver Reis, Carmen Flosbach, Martin Wulf, Karl-Friedrich Doessel
  • Patent number: 7399397
    Abstract: A process for the production of coated substrates comprising the successive steps of: a) applying a coating composition A? onto one side A? of a metal sheet to form a coating layer A which is electrically insulating when cured and applying a coating composition B? onto the opposite side of the metal sheet to form coating layer B which is electrically conductive when cured, wherein each of the coating compositions A? and B? are applied by coil coating, b) curing the two coating layers A and B, c) removing and shaping sheet metal parts provided with the cured coating layer A on one side A? and with the cured coating layer B on the other side B?, d) optionally, assembling the coated shaped sheet metal parts to form a construction with outwardly directed sides A? and e) electrodepositing an electrodeposition (ED) coating layer onto the electrically conductive surfaces and curing of the ED coating layer.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: July 15, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Gabriele Buettner, Heinz-Peter Katzmann, Klausjoerg Klein