Maryland's Defense Patent Database

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Oxide coated metal pigments and film-forming compositions

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NAWCAD

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.

Inventors: 
Matzdorf, Craig; Nickerson, William
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2012-08-01
Grant Date: 
2016-01-26
Grant time: 
1,273 days
Grant time percentile rank: 
23
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
THE PATENT WELL LLC