Patents by Inventor James A. DeChant

James A. DeChant 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).

  • Patent number: 9822260
    Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: November 21, 2017
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A DeChant
  • Publication number: 20140305803
    Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 16, 2014
    Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A. DeChant
  • Publication number: 20130230425
    Abstract: Described are methods for treating a multi-metal assembly. The assembly has a first portion that includes an aluminum substrate and a second portion that includes a non-aluminum metal substrate. The methods include treating the multi-metal assembly by contacting the assembly with a zinc-phosphate composition and contacting the treated assembly with a composition that includes a Group IIIB and/or IVB metal and free fluoride.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 5, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventors: James A. DeChant, Richard Premo, Mark Simpson
  • Publication number: 20120183806
    Abstract: Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.
    Type: Application
    Filed: January 17, 2011
    Publication date: July 19, 2012
    Applicant: PPG Industries, Inc.
    Inventors: Mark W. McMillen, Edward F. Rakiewicz, Mark W. Simpson, James A. DeChant
  • Publication number: 20110083580
    Abstract: Disclosed are replenisher compositions and methods of replenishing pretreatment compositions. The methods include adding a replenisher composition to a pretreatment composition wherein the replenisher composition includes: (a) a dissolved complex metal fluoride ion wherein the metal ion comprises a Group IIIA metal, Group IVA metal, Group IVB metal, or combinations thereof; (b) a component comprising an oxide, hydroxide, or carbonate of Group IIIA, Group IVA, Group IVB metals, or combinations thereof; and optionally (c) a dissolved metal ion comprising a Group IB metal, Group IIB metal, Group VIIB metal, Group VIII metal, Lanthanide Series metal, or combinations thereof.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 14, 2011
    Inventors: Shan Cheng, James A. DeChant, Nicephoros A. Fotinos, Mark McMillen, Edward F. Rakiewicz, David A. Raney