Patents by Inventor Manfred Oppermann

Manfred Oppermann 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: 6908692
    Abstract: An electrically conductive wire coated with a curable coating composition that forms a cured coating having a high partial discharge resitance and good mechanical properties. A process for coating an electrically conductive wire with a curable coating composition and curing the coating composition to form a coating having high partial discharge resistance and good mechanical properties.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 21, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Frank-Rainer Böhm, Gerhard Kiessling, Manfred Oppermann, Heinz Schindler
  • Patent number: 5824733
    Abstract: The proposed aqueous coating product for the production of coatings whose perceived color changes with the angle from which they are viewed contains: one or more water-diluable binders; one or more scale-type pigments, the hue of which depends on the angle from which they are viewed, these pigments consisting of oriented, three-dimensionally cross-linked substances of chiral phase, liquid crystalline structure; optionally one or more cross-linking agents; optionally one or more coloring absorption pigments and/or fillers; and optionally additives usually used in coatings of this type.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: October 20, 1998
    Assignee: Wacker-Chemie GmbH
    Inventors: Jurgen Dobert, Manfred Oppermann, Michael Prescher, Gunter Richter
  • Patent number: 5385656
    Abstract: A process for producing a gravel-impact-resistant multicoat lacquer finish by cathodic electrodeposition of a primer on an electrically conductive substrate, subsequent application of a primer surfacer coat of an aqueous paste filler that contains one or several water-dilutable binders that are curable at temperatures up to 180.degree. C., with subsequent application of one or several base coats and finishing coats. To produce the primer surfacer coat, an aqueous paste filler is used that contains 0.1-20 wt % polyamide powder, polyacrylonitrile powder or mixtures thereof with particle diameters in the range 0.1-100 .mu.m, wherein the high-solid value of the aqueous paste filler is not less than 75 wt %.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: January 31, 1995
    Assignee: Herberts GmbH
    Inventors: Klaus P. Doebler, Wolfgang Goldner, Roland Grutter, Reiner Jungermann, Manfred Oppermann