C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/24.6
C25D 11/22 (2006.01)
Patent
CA 1258819
NICKEL SULFATE COLORING PROCESS FOR ANODIZED ALUMINUM ABSTRACT OF THE DISCLOSURE Anodized aluminum-based metal workpieces are colored in a nickel-based electrolytic coloring process in which the nickel ion is supplied in the form of nickel sulfate in acidic solution. Improvements in both throw- ing power and coloring rate are observed at elevated temperatures and nickel concentrations.
491946
Kaiser Aluminum & Chemical Corporation
Osler Hoskin & Harcourt Llp
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