Patents by Inventor Werner Stephen

Werner Stephen 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).

  • Aqueous, one-component coating composition and use thereof in processes for repair lacquer coating of plastic substrates
    Patent number: 5523336
    Abstract: The invention is directed to an aqueous coating composition composed of chlorinated polyolefins and one or more water-borne, self-emulsifying epoxy resins. The epoxy resin is formed from a combination of aromatic polyols, diepoxy compounds and a condensation product formed from diepoxy compounds and aliphatic polyols. The composition is free of emulsifiers yet forms homogenous mixtures in aqueous media. The composition exhibits strong bonding to plastic substrates.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: June 4, 1996
    Assignee: Heberts GmbH
    Inventors: Peter Schreiber, Udo Hellmann, Werner Stephen, Michael Prescher