Non-cyanide brass plating bath and a method of making metallic f

Details Non-cyanide brass plating bath and a method of making metallic f Non-cyanide brass plating bath and a method of making metallic f

1997-05-30

1998-06-09

Gorgos, Kathryn L.

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly alloy coating

205155, 205244, 106 118, 106 123, 106 126, 106 129, C25D 358, C25D 356, B05B 310, B22F 700

Patent

active

057627789

ABSTRACT:
The present invention provides a non-cyanide brass plating bath composition containing copper, zinc, metal polyphosphate, and orthophosphate, with the proviso that the composition does not contain cyanide. The present invention also provides a method of making metallic foil having a brass layer including the steps of providing a metallic foil; contacting the metallic foil with a non-cyanide brass plating bath containing copper, zinc, metal polyphosphate, and orthophosphate, with the proviso that the brass plating bath does not contain cyanide; applying a current to the brass plating bath; and recovering the metallic foil having a brass layer.

REFERENCES:
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patent: 3857681 (1974-12-01), Yates et al.
patent: 4010005 (1977-03-01), Morisaki et al.
patent: 4049481 (1977-09-01), Morisaki
patent: 4376154 (1983-03-01), Nakatsugawa
patent: 4456508 (1984-06-01), Torday et al.
patent: 4469567 (1984-09-01), Torday et al.
patent: 5243320 (1993-09-01), Clouser et al.
European Search Report mailed Jun. 24, 1997.
Abstract No. 127871X from Gerasimov, "Cyanide-free Brass Electroplating Prior To Rubberizing", Chemical Abstracts, vol. 80, No. 16, pp. 51-54 (Apr. 20, 1987).
Abstract No. 62272 from "Electrodeposition Of A Copper Zinc Alloy", Chemical Abstracts, vol. 72, No. 12 (Mar. 23, 1970).
Abstract No. 12947V from Derwent Publications Ltd., Week 7407 (Aug. 21, 1973).

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