Patents by Inventor Richard P. Woodworth

Richard P. Woodworth 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).

  • AQUEOUS DISPERSION OF ACRYLATE-SILOXANE COPOLYMER PARTICLES
    Publication number: 20220275123
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of acrylate-siloxane copolymer particles comprising structural units of an acrylate monomer; an acid monomer; and a siloxane acrylate monomer of formula I: where R, R1, R2, Y and x are as defined herein. The composition has a high solids content, a low concentration of siloxane acrylate monomer and low coagulum levels. The composition is useful for forming coatings with improved hydrophobicity, stain resistance, and aesthetic/haptic properties compared with conventional all-acrylic compositions.
    Type: Application
    Filed: August 5, 2020
    Publication date: September 1, 2022
    Inventors: Hilda G. Buss, Matthew Carter, Ralph C. Even, Matthew Jeletic, Nanguo Liu, Bryan L. McCulloch, Jodi Mecca, Muhunthan Sathiosatham, Richard P. Woodworth, Fanwen Zeng
  • PREPARATION OF AN AQUEOUS DISPERSION OF ACRYLATE-SILOXANE COPOLYMER PARTICLES
    Publication number: 20220275124
    Abstract: The present invention relates to a method for preparing an aqueous dispersion of acrylate-siloxane copolymer particles as described herein. The polymer particles comprise structural units of an acrylate monomer; an acid monomer; and a siloxane acrylate monomer of formula I: where R, R1, R2, Y and x are as defined herein. The method provides an efficient way to prepare a high solids content aqueous dispersion of siloxane-acrylate hybrid copolymers with efficient incorporation of siloxane acrylate monomers, low residual monomer, and low generation of unwanted coagulum. The dispersion is useful for forming coatings with improved hydrophobicity, stain resistance, and aesthetic/haptic properties compared with conventional all-acrylic compositions.
    Type: Application
    Filed: August 10, 2020
    Publication date: September 1, 2022
    Inventors: Hilda G. Buss, Matthew Carter, Ralph C. Even, Bryan L. McCulloch, Jodi Mecca, Richard P. Woodworth, Fanwen Zeng
  • Oxazolo-naphthyl acids
    Patent number: 7754747
    Abstract: The present invention relates to oxazolo-naphthyl acids of the formula and methods of using them to modulate PAI-1 expression and to treat PAI-1 related disorders.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: July 13, 2010
    Assignee: Wyeth LLC
    Inventors: Thomas J. Commons, Richard P. Woodworth, Jr.