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).
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Publication number: 20250236742Abstract: 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: ApplicationFiled: April 14, 2025Publication date: July 24, 2025Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Egle Puodziukynaite, James C. Serene, Craig A. Wilson, Yves Le Disert, Marissa Elizabeth Johnson
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Publication number: 20250101255Abstract: 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: ApplicationFiled: December 10, 2024Publication date: March 27, 2025Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Jonathan A. Love, Casey Sample
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Patent number: 12203002Abstract: 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: GrantFiled: October 10, 2022Date of Patent: January 21, 2025Assignee: PPG Industries Ohio, Inc.Inventors: David A. Stone, Jonathan A. Love, Casey Sample
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Publication number: 20230059457Abstract: 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: ApplicationFiled: October 10, 2022Publication date: February 23, 2023Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Jonathan A. Love, Casey Sample
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Publication number: 20230035603Abstract: 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: ApplicationFiled: December 31, 2020Publication date: February 2, 2023Applicant: 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
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Publication number: 20220363917Abstract: 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: ApplicationFiled: September 4, 2020Publication date: November 17, 2022Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Egle Puodziukynaite, James C. Serene, Craig A. Wilson, Yves Le Disert, Marissa E. McGovern
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Patent number: 11485864Abstract: 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: GrantFiled: February 26, 2020Date of Patent: November 1, 2022Assignee: PPG Industries Ohio, Inc.Inventors: David A. Stone, Egle Puodziukynaite, Marissa E. McGovern, Craig A. Wilson, Alycia Lewand, Jo-Ann E. Bice
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Patent number: 11466175Abstract: 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: GrantFiled: December 30, 2019Date of Patent: October 11, 2022Assignee: PPG Industries Ohio, Inc.Inventors: David A. Stone, Jonathan A. Love, Casey Sample
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Patent number: 11407905Abstract: 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: GrantFiled: March 1, 2018Date of Patent: August 9, 2022Assignee: PPG Industries Ohio, Inc.Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
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Publication number: 20210324209Abstract: 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: ApplicationFiled: March 1, 2018Publication date: October 21, 2021Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Ellor J. Van Buskirk, Craig A. Wilson, Jo-Ann E. Bice
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Publication number: 20210261799Abstract: 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: ApplicationFiled: February 26, 2020Publication date: August 26, 2021Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Egle Puodziukynaite, Marissa E. McGovern, Craig A. Wilson, Alycia Lewand, Jo-Ann E. Bice
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Publication number: 20210198523Abstract: 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: ApplicationFiled: December 30, 2019Publication date: July 1, 2021Applicant: PPG Industries Ohio, Inc.Inventors: David A. Stone, Jonathan A. Love, Casey Sample
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Patent number: 9797075Abstract: 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: GrantFiled: June 11, 2012Date of Patent: October 24, 2017Assignee: Case Western Reserve UniversityInventors: LaShanda Korley, David A. Stone, Gary E. Wnek, Nandula Wanasekara
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Publication number: 20160215377Abstract: 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: ApplicationFiled: January 22, 2015Publication date: July 28, 2016Inventors: David A. Stone, Timothy Wenckus
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Publication number: 20150038038Abstract: 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: ApplicationFiled: June 11, 2012Publication date: February 5, 2015Inventors: LaShanda Korley, David A. Stone, Gary E. Wnek, Nandula Wanasekara
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Patent number: 4501222Abstract: 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: GrantFiled: September 21, 1983Date of Patent: February 26, 1985Assignee: Stone Fly ProductsInventor: David A. Stone