Patents by Inventor Mary E. Rosenberger

Mary E. Rosenberger 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).

  • Emulsion polymers and coating compositions prepared therefrom
    Patent number: 5166272
    Abstract: A stable emulsion polymer is prepared by the emulsion polymerization of a vinyl monomer component in the presence of a base neutralized copolymer having a peak molecular weight not exceeding 50,000 of an olefinically unsaturated material selected from the group consisting of 1-decene, 1-dodecene, undecenylic acid and mixtures thereof and an ethylenically unsaturated anhydride containing material. The emulsion polymer is particularly useful for preparing coating compositions which have excellent physical properties.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: November 24, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Steven J. Burks, Karl F. Schimmel, Suryya K. Das, Mary E. Rosenberger, James A. Claar, Anthony C. Palermo, Henry H. Crum, III
  • Aqueous composition comprising a phosphated epoxy and non-self dispersible resin
    Patent number: 4638020
    Abstract: Disclosed herein are aqueous compositions comprising a base-neutralized blend of non-gelled phosphated epoxy and a resin which is non-self dispersible with a base, in water. Coating compositions of these blends are stable and form hydrophobic films of enhanced film properties, particularly in the area of can coatings.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: January 20, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Mary E. Rosenberger, Marvin T. Tetenbaum