Metal pieces and articles having improved corrosion resistance

Details Metal pieces and articles having improved corrosion resistance Metal pieces and articles having improved corrosion resistance

2006-09-05

2006-09-05

Lavilla, Michael E. (Department: 1775)

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Forming nonmetal coating

C205S319000, C427S436000, C427S443200

Reexamination Certificate

active

07101469

ABSTRACT:
A metal piece having an organic coating with improved corrosion resistance and adhesion is described which comprises a zinc or zinc alloy plated metal piece having on its surface, a chromate film deposited from an aqueous acidic chromium solution comprising trivalent chromium as substantially the only chromium ion present, and a cathodic electrocoated siccative organic coating on the chromate film. A process for obtaining such coated metal pieces also is described.

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