Patents by Inventor Owen P. Kasson

Owen P. Kasson 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).

  • Method for incorporating water soluble, reactive, phosphorescent pigments into a stable waterborne coating through pH buffering
    Patent number: 8298441
    Abstract: Stable, phosphorescent, water-based coating compositions include a latex emulsion, at least one metal aluminate pigment as a source of phosphorescence, and an effective buffering amount of a buffering agent, which may be an organic acid. The ratio of metal aluminum phosphorescent pigment to latex binder in the latex emulsion may be in the range of about 0.5:1 to about 2.0:1. The effective amount of buffering agent may be from about 0.1% to about 10% with respect to emulsion weight. Compositions according to the present invention may have useful shelf lives of six months or longer. Methods of using the phosphorescent latex coatings and coated substrates are also taught.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: October 30, 2012
    Assignee: The Sherwin-Williams Company
    Inventors: Owen P. Kasson, Robert A. Martuch, Celestine O. Ilori, Glenn A. Miller, Daniel M. Gerow