Gold plating bath and method using maleic anhydride polymer...

Details Gold plating bath and method using maleic anhydride polymer... Gold plating bath and method using maleic anhydride polymer...

C - Chemistry, Metallurgy

25

D

204/29

C25D 3/48 (2006.01) C25D 3/62 (2006.01)

Patent

CA 1211410

ABSTRACT An all-purpose gold cyanide electroplating bath utilizes a cobalt, nickel, or indium hardener as a chelate with the acid form of a methyl or ethyl vinyl ether/maleic anhydride interpolymer. The bath is capable of producing high levels of hardness in deposits that are substantially pure gold; it is efficient, very stable, resistant to contamination, and it is well-suited for utility at a wide range of current densities.

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