Aluminum polishing compositions

Details Aluminum polishing compositions Aluminum polishing compositions

1977-10-19

1981-02-17

Weinblatt, Mayer

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252 794, 252148, 252390, 252392, 106 3, 106 1412, 106 1417, 148 617, 156635, 156665, 156903, C11D 732, C11D 734, C11D 736

Patent

active

042513847

ABSTRACT:
Aluminium polishing solutions containing phosphoric, nitric and sulphuric acids provide etched finishes if the proportion of sulphuric acid is increased. The invention inhibits such etching by addition to the bath of an aromatic ring compound in which at least 2 hetero atoms are conjugated with the ring such as benztriazole.

REFERENCES:
patent: 2694001 (1954-11-01), Hayes et al.
patent: 3425881 (1969-02-01), Cohn
patent: 3876371 (1975-04-01), Costain et al.

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