Patents by Inventor Herbert Beumling

Herbert Beumling 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).

  • Corrosion-inhibiting pigment and paint composition
    Patent number: 4337092
    Abstract: The invention relates to a corrosion-inhibiting active pigment for use in the surface protection of iron and iron alloys. The pigment consists of a mixture of calcium hydrogen phosphate dihydrate, magnesium hydrogen phosphate trihydrate and zinc oxide. More specifically, the mixture contains 2 to 98 weight % of ZnO and 98 to 2 weight % of phosphate components. These in turn contain 3 to 97 weight % of CaHPO.sub.4 .multidot.2 H.sub.2 O and 97 to 3 weight % of MgHPO.sub.4 .multidot.3 H.sub.2 O. The active pigment is suitable for use in painting compositions or lacquers.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: June 29, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Hestermann, Alexander Maurer, Joachim Kandler, Gerhard Mietens, Herbert Beumling