Compositions – Etching or brightening compositions – Inorganic acid containing
Patent
1985-12-23
1986-09-02
Terapane, John F.
Compositions
Etching or brightening compositions
Inorganic acid containing
156903, 156625, C09K 1306, B44C 122
Patent
active
H00001252
ABSTRACT:
Boric acid, an acidifying agent, and an optional complexing agent are mixed to form an aqueous solution which is used to etch and polish metal halide. The solution is used to wet a polishing pad which is mounted on a rotating planar wheel. The metal halide is brought into contact with the pad thereby polishing the surface of the metal halide.
REFERENCES:
patent: 2903345 (1959-09-01), Hedley et al.
patent: 3629023 (1968-07-01), Streklow
patent: 4040896 (1977-08-01), Harrington et al.
patent: 4155803 (1979-05-01), Hurley et al.
Beers Robert F.
Ellis William T.
Guffey Wendell R.
Terapane John F.
Thomas Jack
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