US Patent 7452427 Corrosion resistant conversion coatings

Patent 7452427 was granted and assigned to Deft, Inc. on November, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

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Deft, Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74524270

Patent Inventor Names

Eric L. Morris0

Date of Patent

November 18, 2008

Patent Application Number

110027410

Date Filed

December 1, 2004

Patent Primary Examiner

Roy King

Patent 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.