Patents Assigned to Deft, Inc.
  • Corrosion Resistant Conversion Coatings
    Publication number: 20090065101
    Abstract: A conversion coating composition for coating a metal substrate is provided which imparts corrosion resistance to the underlying metal substrate. The conversion coating composition comprises an aqueous carrier and first and second rare earth element salts. A complete coating system employing the conversion coating composition is also provided as well as methods for conversion coating a metal substrate with the rare earth element conversion coating compositions of the present invention.
    Type: Application
    Filed: November 17, 2008
    Publication date: March 12, 2009
    Applicant: DEFT, INC.
    Inventor: Eric L. Morris
  • Corrosion resistant conversion coatings
    Patent number: 7452427
    Abstract: A conversion coating composition for coating a metal substrate is provided which imparts corrosion resistance to the underlying metal substrate. The conversion coating composition comprises an aqueous carrier and first and second rare earth element salts. A complete coating system employing the conversion coating composition is also provided as well as methods for conversion coating a metal substrate with the rare earth element conversion coating compositions of the present invention.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: November 18, 2008
    Assignee: Deft, Inc.
    Inventor: Eric L. Morris
  • Water-reducible epoxy coating compositions without emulsifier
    Patent number: 4352898
    Abstract: A homogeneous, water-reducible coating composition comprises a modified polyamine resin homogeneously reduced, in an aqueous system comprising water and a low-molecular weight nitroparaffin. An epoxy resin can be added to the coating composition to form a stable emulsion.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: October 5, 1982
    Assignee: Deft, Inc.
    Inventor: Richard A. Albers