Patents by Inventor Kathryn A. Shaffer

Kathryn A. Shaffer 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).

  • Powder coating composition comprising an organometallic catalyst
    Patent number: 11345822
    Abstract: The present invention is directed to a powder coating composition including a hydroxy-functional polymer, a carbodiimide crosslinker, and an organometallic catalyst. The present invention is also directed to a substrate at least partially coated with the powder coating composition. The present invention is also directed to a method of applying a coating composition to a substrate including: applying the powder coating composition to a substrate and heating the powder coating composition to form a coating over the substrate.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 31, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Hongying Zhou, Daniel K. Dei, Edward R. Millero, Jr., Kathryn A. Shaffer, Brian E. Woodworth
  • Polyoxazoline-containing compositions catalyzed with onium salt
    Patent number: 11345829
    Abstract: Polyoxazoline-containing compositions cured in the presence of an onium salt catalyst are disclosed.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 31, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Kathryn A. Shaffer, Brian E. Woodworth, Hongying Zhou, Tsukasa Mizuhara, Anthony M. Chasser, Troy James Larimer
  • Powder Coating Composition Comprising an Organometallic Catalyst
    Publication number: 20210277254
    Abstract: The present invention is directed to a powder coating composition including a hydroxy-functional polymer, a carbodiimide crosslinker, and an organometallic catalyst. The present invention is also directed to a substrate at least partially coated with the powder coating composition. The present invention is also directed to a method of applying a coating composition to a substrate including: applying the powder coating composition to a substrate and heating the powder coating composition to form a coating over the substrate.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 9, 2021
    Inventors: Hongying Zhou, Daniel K. Dei, Edward R. Millero, JR., Kathryn A. Shaffer, Brian E. Woodworth
  • Powder coating composition
    Patent number: 10941302
    Abstract: A powder coating composition grindable at non-cryogenic temperatures includes: (a) a first polymer having a number average molecular weight (Mn) of more than 1,000 and a Tg of at least 40° C.; (b) a second polymer having a Tm of at least 100° C.; and optionally (c) a cross-linker. The first polymer and the second polymer are different from one another, and each of the first and second polymers have less than 25 wt % fluorine-containing monomeric units, with wt % based on the total weight of the monomeric units in each polymer. Upon grinding at a temperature above 4° C. the coating composition has an average particle size from 15 to 150 microns. Further coating compositions, methods of preparing coating compositions, coating systems, and substrates coated with a powder coating composition are also disclosed.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 9, 2021
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Edward R. Millero, Robert Cavlovich, Anthony M. Chasser, Troy Larimer, Julia Pacilio, John Robert Schneider, Kathryn A. Shaffer
  • Polyoxazoline-Containing Compositions Catalyzed with Onium Salt
    Publication number: 20200385605
    Abstract: Polyoxazoline-containing compositions cured in the presence of an onium salt catalyst are disclosed.
    Type: Application
    Filed: April 21, 2020
    Publication date: December 10, 2020
    Inventors: Kathryn A. Shaffer, Brian E. Woodworth, Hongying Zhou, Tsukasa Mizuhara, Anthony M. Chasser, Troy James Larimer
  • POWDER COATING COMPOSITION
    Publication number: 20190276678
    Abstract: A powder coating composition grindable at non-cryogenic temperatures includes: (a) a first polymer having a number average molecular weight (Mn) of more than 1,000 and a Tg of at least 40° C.; (b) a second polymer having a Tm of at least 100° C.; and optionally (c) a cross-linker. The first polymer and the second polymer are different from one another, and each of the first and second polymers have less than 25 wt % fluorine-containing monomeric units, with wt % based on the total weight of the monomeric units in each polymer. Upon grinding at a temperature above 4° C. the coating composition has an average particle size from 15 to 150 microns. Further coating compositions, methods of preparing coating compositions, coating systems, and substrates coated with a powder coating composition are also disclosed.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 12, 2019
    Inventors: Edward R. Millero, Robert Cavlovich, Anthony M. Chasser, Troy Larimer, Julia Pacilio, John Robert Schneider, Kathryn A. Shaffer
  • Polyoxazoline-Containing Compositions Catalyzed with Onium Salt
    Publication number: 20190185700
    Abstract: Polyoxazoline-containing compositions cured in the presence of an onium salt catalyst are disclosed.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Kathryn A. Shaffer, Brian E. Woodworth, Hongying Zhou, Tsukasa Mizuhara, Anthony M. Chasser, Troy James Larimer