Electroplating baths, additives therefor and methods for the electrodeposition of metals
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United States of America Patent
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May 24, 1983
Grant Date -
N/A
app pub date -
Aug 21, 1981
filing date -
Aug 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Bright level metal deposits can be obtained on substrates from aqueous acid plating baths containing water soluble salts of the metal to be deposited and at least one surfactant of the formula ROCH.sub.2 CH(CH.sub.3)OCH.sub.2 CH(CH.sub.3)N(H)CH.sub.2 CH.sub.2 COOH (I) or ##STR1## wherein R is an alkyl group containing 10 to 12 carbon atoms; x and y are integers, the sum of which is from 2 to about 20. The aqueous acid plating baths of the invention will preferably contain as a brightening agent, at least one carbonyl-containing compound. These plating baths exhibit low foaming characteristics.
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