Patents by Inventor David A. Stone

David A. Stone 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).

  • Publication number: 20250236742
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising greater than 60% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth)acrylate monomer and/or a hydroxyl-functional (meth)acrylamide monomer, based on the total weight of the acrylic polymer; and an ionic salt group-containing film-forming polymer different from the acrylic polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: April 14, 2025
    Publication date: July 24, 2025
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Egle Puodziukynaite, James C. Serene, Craig A. Wilson, Yves Le Disert, Marissa Elizabeth Johnson
  • Publication number: 20250101255
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Jonathan A. Love, Casey Sample
  • Patent number: 12203002
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: January 21, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Jonathan A. Love, Casey Sample
  • Publication number: 20230059457
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 23, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Jonathan A. Love, Casey Sample
  • Publication number: 20230035603
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups; a blocked polyisocyanate curing agent comprising blocking groups, wherein at least 30% of the blocking groups comprise a 1,2-polyol as a blocking agent, based upon the total number of blocking groups; and a bismuth catalyst. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: December 31, 2020
    Publication date: February 2, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Egle Puodziukynaite, Joseph R. Swanger, Venkatachalam Eswarakrishnan, Craig A. Wilson, Brian C. Okerberg, Hyun Wook Ro, Ross Anthony Moretti
  • Publication number: 20220363917
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising greater than 60% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth)acrylate monomer and/or a hydroxyl-functional (meth)acrylamide monomer, based on the total weight of the acrylic polymer; and an ionic salt group-containing film-forming polymer different from the acrylic polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: September 4, 2020
    Publication date: November 17, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Egle Puodziukynaite, James C. Serene, Craig A. Wilson, Yves Le Disert, Marissa E. McGovern
  • Patent number: 11485864
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising a polyfarnesene polymer and an ionic salt group-containing film-forming polymer. Also disclosed are methods of coating a substrate using the electrodepositable coating composition, coatings derived from the electrodepositable coating composition, and substrates coated with the coatings derived from the electrodepositable coating composition.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: November 1, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Egle Puodziukynaite, Marissa E. McGovern, Craig A. Wilson, Alycia Lewand, Jo-Ann E. Bice
  • Patent number: 11466175
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: October 11, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Jonathan A. Love, Casey Sample
  • Patent number: 11407905
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 9, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
  • Publication number: 20210324209
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: March 1, 2018
    Publication date: October 21, 2021
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
  • Publication number: 20210261799
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising a polyfarnesene polymer and an ionic salt group-containing film-forming polymer. Also disclosed are methods of coating a substrate using the electrodepositable coating composition, coatings derived from the electrodepositable coating composition, and substrates coated with the coatings derived from the electrodepositable coating composition.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Egle Puodziukynaite, Marissa E. McGovern, Craig A. Wilson, Alycia Lewand, Jo-Ann E. Bice
  • Publication number: 20210198523
    Abstract: The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Applicant: PPG Industries Ohio, Inc.
    Inventors: David A. Stone, Jonathan A. Love, Casey Sample
  • Patent number: 9797075
    Abstract: In accordance with one embodiment, a polymer composite comprises a filler and a matrix. The filler comprises an electrospun polymer mat. The matrix comprises a polymer film. The filler is arranged to respond to stimuli by altering its mechanical properties. In one example, the mat can be electrospun from poly(vinyl alcohol), and the matrix can be formed from ethylene oxide-epichlorohydrin 1:1 copolymer. The filler can be arranged so that the tensile storage modulus of the polymer composite changes in response to the filler being exposed to a stimulus. In another example, the filler is about four percent by weight of the polymer composite.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: October 24, 2017
    Assignee: Case Western Reserve University
    Inventors: LaShanda Korley, David A. Stone, Gary E. Wnek, Nandula Wanasekara
  • Publication number: 20160215377
    Abstract: Methods are disclosed for applying a protective layer to a can component and for modifying surface properties of a can component, feedstock or tooling. An example method involves: (a) directing a precursor plasma plume at a surface of a can component via at least one precursor plasma gun, where the precursor plasma plume includes an ionized gas and an ionized precursor and (b) treating at least a portion of the surface of the can component with the precursor plasma plume and thereby forming a first layer on the portion of the surface of the can component treated with the precursor plasma plume.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 28, 2016
    Inventors: David A. Stone, Timothy Wenckus
  • Publication number: 20150038038
    Abstract: In accordance with one embodiment, a polymer composite comprises a filler and a matrix. The filler comprises an electrospun polymer mat. The matrix comprises a polymer film. The filler is arranged to respond to stimuli by altering its mechanical properties. In one example, the mat can be electrospun from poly(vinyl alcohol), and the matrix can be formed from ethylene oxide-epichlorohydrin 1:1 copolymer. The filler can be arranged so that the tensile storage modulus of the polymer composite changes in response to the filler being exposed to a stimulus. In another example, the filler is about four percent by weight of the polymer composite.
    Type: Application
    Filed: June 11, 2012
    Publication date: February 5, 2015
    Inventors: LaShanda Korley, David A. Stone, Gary E. Wnek, Nandula Wanasekara
  • Patent number: 4501222
    Abstract: The applicator is provided in the form of a hinged box-like shell of somewhat flexible inert plastic material having opposite end walls which are slotted in an off-center manner. The body and lid of the shell each removably receive applicator pads, e.g. of absorbent material such as wool felt on which the user may apply a fishing line dressing composition. In use, the applicator is closed about a fishing line so that the line is in contact with both body and lid pads, and the segment of the line that is to be dressed is moved longitudinally relative to the applicator as compressive finger pressure on the opposite face walls of the shell is used for modulating squeezing of the line. The non-hinged sidewall of either the body or the lid is provided with a catch-equipped flange which overlaps the comparable wall of the other of the lid or the body. And the two end walls of the other of the lid and the body, are provided with slotted flanges which overlap the comparable walls of the body or the lid.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: February 26, 1985
    Assignee: Stone Fly Products
    Inventor: David A. Stone