Patents by Inventor Pietro J. Ragone

Pietro J. Ragone 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
    Patent number: 8013092
    Abstract: A waterborne coating produced form a composition containing a binder resin having post crosslinking groups, an associative thickener having post crosslinking groups, a dispersant having post crosslinking groups, and a reactive diluent having post crosslinking groups.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 6, 2011
    Assignee: The Sherwin-Williams Company
    Inventors: John M. Krajnik, Peter J. Mackulin, Pietro J. Ragone
  • Non-Aqueous Slurries Used as Thickeners and Defoamers
    Publication number: 20090071369
    Abstract: A low VOC, HAPs free, substantially non-aqueous slurry for use as a rheology modifier in aqueous systems including but not limited to latex paints. The slurry comprises a particulate water-swelling polymer such as hydroxyethyl cellulose, mineral oil carrier liquid, a non-ionic surfactant, a particulate thickening agent, a defoamer, and optionally an amine component.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 19, 2009
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Pietro J. Ragone, Robert A. Martuch, Gerald M. Sweitzer, Joseph K. Walker