Patents by Inventor Klaus-Dieter Stegemann

Klaus-Dieter Stegemann 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: 7625630
    Abstract: Disclosed is a combination effect coat that simultaneously provides at least one function selected from the group consisting of color, effect, or the combination thereof as well as at least one function selected from the group consisting of corrosion protection, adhesion promotion, absorption of mechanical energy, or the combination of two or more of the foregoing. The combination effect coat is produced by the application and curing of a pigmented powder slurry wherein the pigmented powder slurry is curable thermally, or curable thermally and with actinic radiation. The pigmented powder slurry consists of finely divided dimensionally stable constituents having an average particle size of from 0.8 to 40 ?m, has a residual volatile solvent content of less than 1% by weight, and comprises a (meth)acrylate copolymer having an epoxide equivalent weight of 400 to 2500; and a color pigment, an effect pigment, or a combination thereof.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: December 1, 2009
    Assignee: BASF Coatings AG
    Inventors: Walter Lassmann, Klaus-Dieter Stegemann, Horst Hintze-Brüning, Joachim Woltering, Wolfgang Reckordt
  • Publication number: 20070172595
    Abstract: Disclosed herein are processes for producing a multilayer sheet as well as uses thereof. In one embodiment, a process for producing a multilayer sheet S by coating a carrier sheet with a pigmented basecoat film, if desired, a second pigmented basecoat film, and a clearcoat. The process comprises: applying a pigmented basecoat material to the carrier sheet and adjusting the film la to a residual volatiles content “x” less than 10% by weight, to give a film 1b. A surface of the film 1b is adjusted to a temperature of <50° C. If desired, a second pigmented basecoat material or the pigmented basecoat material is applied to the film 1b to give a film 2a, and adjusting the film 2a to a residual volatiles content “y” of <10% by weight, based on the basecoat film. If appropriate, the films 1b and 2b are adjusted to a temperature of <50° C. at a surface of the film 2b.
    Type: Application
    Filed: March 2, 2005
    Publication date: July 26, 2007
    Applicant: BASF COATINGS AKTIENGESELLSCHAFT
    Inventors: Bernd Biallas, Wolfgang Duschek, Klaus-Dieter Stegemann, Markus Saedler
  • Publication number: 20040137165
    Abstract: A color and/or effect coating system for a primed or unprimed substrate, said system comprising a combination effect coat which can be prepared from a pigmented powder slurry.
    Type: Application
    Filed: October 29, 2002
    Publication date: July 15, 2004
    Inventors: Walter Lassmann, Klaus-Dieter Stegemann, Horst Hintze-Brning, Joachim Woltering, Wolfgang Reckordt