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:
Jan. 26, 2016

Filed:

Aug. 01, 2012
Applicants:

Craig Matzdorf, California, MD (US);

William Nickerson, Reston, VA (US);

Inventors:

Craig Matzdorf, California, MD (US);

William Nickerson, Reston, VA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F 11/00 (2006.01); C09D 5/00 (2006.01); C09D 5/08 (2006.01); C09D 5/10 (2006.01); C09D 7/12 (2006.01); C23F 11/08 (2006.01); C22C 21/00 (2006.01); C23F 11/10 (2006.01);
U.S. Cl.
CPC ...
C09D 5/00 (2013.01); C09D 5/082 (2013.01); C09D 5/10 (2013.01); C09D 7/1291 (2013.01); C23F 11/00 (2013.01); C22C 21/00 (2013.01); C23F 11/08 (2013.01); C23F 11/10 (2013.01);
Abstract

This invention relates to sacrificial-metal pigments coated with an effective amount of at least one metal oxide or a combination of metal oxides such as a chromium-zirconium oxide, and the process for preparing said coated pigments and combination thereof with film-forming binders for coating metal substrates to inhibit corrosion. The coated sacrificial-metal pigments are electrically active to prevent corrosion of metal substrates that are more cathodic (electropositive) than the metal oxide coated metal pigments.


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