C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/29
C25D 3/46 (2006.01)
Patent
CA 1110997
ABSTRACT OF THE DISCLOSURE The disclosure describes a brightener system espe- cially adapted for use in non-cyanide acid silver electro- plating solutions. It comprises, in aqueous solution, at least one anionic sulfonic acid derivative surfactant, at least one amphoteric nitrogen containing carboxylic acid or sulfonic acid derivative surfactant, at least one cationic or non-ionic surfactant, at least one electrolysis stable soluble aldehyde, and at least one C=S containing compound or tautomer thereof.
351371
Karustis George A.
Leahy Elizabeth P.
Oxy Metal Industries Corporation
Swabey Ogilvy Renault
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