Patents by Inventor Donald W. Whisenhunt, Jr.

Donald W. Whisenhunt, Jr. 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).

  • No-rinse pretreatment methods and compositions
    Patent number: 10041176
    Abstract: Conversion and passivation coatings and methods for metal surfaces such as steel and aluminum are disclosed. The coating compositions comprise an aqueous sol of cerium oxide and/or silica particles and a ureido silane compound. The methods of the invention comprise contacting the requisite metal surface with the coating composition.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 7, 2018
    Assignee: Momentive Performance Materials Inc.
    Inventors: Lingyun He, Donald W. Whisenhunt, Jr., Jeffrey I. Melzer, Andrea Keys Eodice, Bret Chisholm, Christopher M. Carter, Shiu-Chin H Su, Kendall L. Guyer, Matthew M. Hunter
  • Storage stable composition of partial and/or complete condensate of hydrolyzable organofunctional silane
    Patent number: 8609755
    Abstract: Conversion and passivation coatings and methods for treating metal surfaces such as steel and aluminum are disclosed. The coating compositions comprise a silane and a stabilizing agent. The methods herein comprise contacting the requisite metal surface with the coating composition.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 17, 2013
    Assignee: Momentive Perfomance Materials Inc.
    Inventors: Shiu-Chin (Cindy) H. Su, Kendall L. Guyer, Jeffrey I. Melzer, Christopher M. Carter, Matthew M. Hunter, Andrea Keys Eodice, Donald W. Whisenhunt, Jr., Lingyun He, Bret Chisholm
  • Rinsable metal pretreatment methods and compositions
    Patent number: 8585834
    Abstract: Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 19, 2013
    Inventors: Edward A. Rodzewich, Jeffrey I. Melzer, Philip D. Deck, Donald W. Whisenhunt, Jr., William S. Carey, David B. Engel, Bret Chisholm, Christopher M. Carter