The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 16, 2006

Filed:

Sep. 10, 2002
Applicants:

Zoran Minevski, The Woodlands, TX (US);

Jason Maxey, College Station, TX (US);

Carl Nelson, College Station, TX (US);

Cahit Eylem, College Station, TX (US);

Inventors:

Zoran Minevski, The Woodlands, TX (US);

Jason Maxey, College Station, TX (US);

Carl Nelson, College Station, TX (US);

Cahit Eylem, College Station, TX (US);

Assignee:

Lynntech Coatings, Ltd., College Station, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 22/48 (2006.01); C23C 22/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method employing oxide film conversion coatings prepared using ferrate (VI) as the oxidizing agent is disclosed. Metal substrates or surfaces, such as aluminum, aluminum alloys or other metals, are contacted with an aqueous solution comprising ferrate (VI) anions to form a corrosion resistant conversion coating on the surface thereof. The ferrate anion concentration is preferably between about 0.0166% and about 1.66% by weight. The coating process is carried out by dipping, spraying, or painting at temperatures ranging from 25° C. to 100° C. for a period of time ranging from about 1 second to about 5 minutes.


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