Gold plating bath and method using maleic anhydride polymer chel

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

1981-12-14

1983-08-02

Waltz, Thomas A.

Chemistry: electrical and wave energy

Processes and products

204 46G, 5253278, 525371, 260429J, C25D 348, C25D 362

Patent

active

043964710

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 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, resistent to contamination, and it is well-suited for utility at a wide range of current densities.

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GAF Technical Bulletin No. 7543-017, "Gantrez AN:Poly(methyl vinyl ether/maleic anhydride)".

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