Patents by Inventor David L. Holzinger

David L. Holzinger 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).

  • Water reducible acrylic with superior dip and flow characteristics/low VOC
    Patent number: 5034454
    Abstract: Disclosed herein are crosslinkable water-dispersible acrylic copolymers which are prepared by free-radical initiated polymerization of ethylenically unsaturated monomers containing independently an active hydrogen group, a carboxyl group and a sulfonic group, wherein the polymerization is conducted in the presence of a wax. In combination with curing agents, the crosslinkable compositions are particularly useful in imparting markedly improved flow to dip coatings.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: July 23, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Rudolf Maska, David T. McKeough, David L. Holzinger, Susan D. Klejsmit