Brightening composition for zinc alloy electroplating bath and its method of use
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United States of America Patent
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Jan 10, 1984
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N/A
app pub date -
Jun 16, 1981
filing date -
Jun 16, 1981
priority date (Note) -
Expired
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Abstract
An acid zinc alloy electroplating bath such as a zinc-nickel and/or cobalt bath and process employing said bath which contains an effective amount of a brightening agent selected from a bath soluble polyacrylamide polymer, N-substituted polyacrylamide derivative, and copolymers thereof. The zinc alloy electroplating is economical and versatile in use and produces a ductile, corrosion resistant plating deposit having a semi-bright to bright appearance.
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