Patents by Inventor Barbara G. Piccirilli

Barbara G. Piccirilli 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).

  • Waterborne coating compositions for automotive applications
    Patent number: 5071904
    Abstract: A waterborne coating composition having a total solids content at application of greater than 30 percent, contains pigment and a dispersion of polymeric microparticles in an aqueous medium. The microparticles contain greater than 30 percent by weight based on the microparticles of a substantially hydrophobic polymer which is essentially free of repeating acrylic or vinyl units in the backbone, has a molecular weight greater than 300 and is adapted to be chemically bound into the cured coating composition. The aqueous medium of the microparticle dispersion is substantially free of water soluble polymer.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: December 10, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Roxalana L. Martin, Barbara G. Piccirilli, Dennis L. Faler
  • Stable multiphase coating compositions
    Patent number: 4855164
    Abstract: A coating composition contains:(a) a waterborne film-forming polymer; and(b) a stable, liquid nonaqueous polymer microparticle dispersion characterized in that the nonaqueous dispersion, when independently spray applied, is capable of forming discrete, particle agglomerates upon volatilization of its nonaqueous medium, the components (a) and (b) being present in amounts effective to provide that the coating composition is a stable, multiphase composition.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: August 8, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Mary J. Burkholder, Barbara G. Piccirilli, Carl C. Anderson, Rodger G. Temple