Color stabilization of anodized aluminum alloys

Details Color stabilization of anodized aluminum alloys Color stabilization of anodized aluminum alloys

2006-10-17

2006-10-17

King, Roy (Department: 1742)

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Forming multiple superposed electrolytic coatings

C205S224000, C205S229000

Reexamination Certificate

active

07122107

ABSTRACT:
A process is disclosed for stabilizing certain colored anodized coating on aluminum articles against degradation by ultraviolet radiation. Anodized articles colored by an electrolytic or interference process can thereafter be stabilized by heat treating them at temperatures of the order of 350° F. for a period of an hour or so. The process is particularly useful for use on electrolytically colored, anodized vehicular external body panels made from suitably formable sheet metal aluminum alloys.

REFERENCES:
patent: 4209569 (1980-06-01), Brugger
patent: 5277982 (1994-01-01), Jozefowicz
patent: 5324587 (1994-06-01), Nitowski et al.
patent: 5392695 (1995-02-01), Junkel

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