Process for forming an anodic oxide coating on metals

Details Process for forming an anodic oxide coating on metals Process for forming an anodic oxide coating on metals

1977-02-03

1978-08-22

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204 56M, 204 58, C25D 1134, C25D 1126, C25D 1130

Patent

active

RE0297399

ABSTRACT:
Efficiency of chemical surface finishing baths for metal articles, particularly electrolytic baths for anodizing metals such as aluminum, magnesium or titanium is improved by incorporating into the bath an effective amount, typically from 0.1 to 50 grams per liter of the reaction product of a metal halide, such as boron trifluoride, and a trifluoro-alkaryl amine, suitably .alpha.,.alpha.,.alpha.-trifluoro-m-toluidine.

REFERENCES:
patent: 2855351 (1958-10-01), Ernst
patent: 3198672 (1965-08-01), De Hart
patent: 3834999 (1974-09-01), Hradcousky et al.

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