Patents by Inventor Raymond L. Pelegrinelli

Raymond L. Pelegrinelli 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).

  • Preparation of non-aqueous thermosetting acrylic polymer dispersions
    Patent number: 3966667
    Abstract: A non-aqueous thermoset polymer solution coating having excellent properties is attained by polymerizing a hydroxy alkyl acrylate or methacrylate in a dispersing liquid in the presence of a dispersion stabilizer and a carboxylic acid and an imine. An aminoplast resin is added to the polymer dispersion after the dispersion is swamped with active solvent to form a solution and the resulting coating has excellent solvent pop resistance.
    Type: Grant
    Filed: October 11, 1972
    Date of Patent: June 29, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Thomas R. Sullivan, John W. Du, Raymond L. Pelegrinelli, Suryya K. Das