Patents by Inventor Debra Lynn Singer

Debra Lynn Singer 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: 6329060
    Abstract: A multi-component composite coating composition is provided which includes a pigmented base coat and a transparent topcoat composition applied over the base coat. The transparent topcoat is deposited from a substantially solvent free film-forming composition which includes a thermosettable dispersion of polymeric microparticles having functionality adapted to react with a crosslinking agent and a hydrophilic crosslinking agent reactive with the functionality of the microparticles. The microparticles are prepared from one or more reaction products of ethylenically unsaturated monomers, one or more hydrophobic polymers and one or more hydrophobic crosslinking agents. Pigmented film-forming compositions as well as curable compositions containing the above-described dispersions also are provided. A method of forming the dispersion of polymeric microparticles is provided.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: December 11, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Karen A. Barkac, Dennis Leroy Faler, Mary E. Grolemund, Debra Lynn Singer