Chemistry: electrical and wave energy – Processes and products
Patent
1979-08-20
1980-11-25
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
148 627, C25D 1118
Patent
active
042356822
ABSTRACT:
The solution for sealing anodic oxidized aluminum or aluminum alloys comprises basically an aqueous solution containing an addition of 0.1 to 2.5 g/l, made up of Agar-Agar and gelatine. the optimum pH value for the solution lies between 5.5 and 6.0.
The sealing is carried out at a temperature between 90.degree. C. and the boiling point of the solution.
REFERENCES:
patent: 3671333 (1972-06-01), Mosier
Hackh's Chemical Dictionary, 4th Edition, McGraw-Hill Book Co. New York, pp. 19, 293-294.
Schneeberger Fritz
Weber Hermann
Zweifel Walter
Leader William
Swiss Aluminium Ltd.
Williams Howard S.
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