Patents by Inventor Klaus Buppelmann

Klaus Buppelmann 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).

  • Functionalized copolymers for preparing coating compositions
    Patent number: 6624243
    Abstract: The invention provides functionalized copolymers in the form of their aqueous dispersions or water-redispersible powders, based on a) one or more monomers from the group consisting of vinyl esters of unbranched or branched alkylcarboxylic acids having 1 to 15 carbon atoms, methacrylic esters and acrylic esters of alcohols having 1 to 15 carbon atoms, vinyl aromatics, olefins, dienes, and vinyl halides, b) from 0.05 to 5.0% by weight of one or more hydrolyzable silane monomers from the group consisting of ethylenically unsaturated, hydrolyzable silicon compounds and hydrolyzable silicon compounds from the group consisting of epoxysilanes, aminosilanes, and mercaptosilanes, c) from 0.05 to 5.0% by weight of one or more monomers from the group consisting of ethylenically unsaturated epoxide compounds, d) from 0 to 2.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: September 23, 2003
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Kurt Stark, Peter Tschirner, Peter Ball, Klaus Büppelmann, Udo Kotschi
  • Functionalized copolymers for preparing coating compositions
    Publication number: 20020007009
    Abstract: The invention provides functionalized copolymers in the form of their aqueous dispersions or water-redispersible powders, based on
    Type: Application
    Filed: May 7, 2001
    Publication date: January 17, 2002
    Applicant: Wacker-Chemie GmbH
    Inventors: Kurt Stark, Peter Tschirner, Peter Ball, Klaus Buppelmann, Udo Kotschi