Chemistry: electrical and wave energy – Processes and products
Patent
1983-07-11
1984-10-23
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
204 44, 204 45R, C25D 346, C25D 364
Patent
active
044786913
ABSTRACT:
A silver electroplating procedure is disclosed which permits rapid and efficient plating and yields ductile, adherent silver films. The electroplating bath comprises silver complexed with an aliphatic polyamine compound with 3 to 20 carbon atoms. Particularly useful are such polyamines as diaminopropane (particularly 1,3-diaminopropane), diethylenetriamine, 1,4-diaminobutane, 1,6-diaminohexane, etc. The procedure is also useful for electroplating a variety of silver alloys. In addition, the bath is highly stable, does not adversely affect the base material being plated and does not contain hazardous materials which require special disposal procedures.
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S. R. Natarajan et al., Metal Finishing, pp. 51-56, Feb. 1971.
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Design Engineering, "New Ways to Skimp on Gold", pp. 45-46, Nov. 1980.
AT&T Bell Laboratories
Kaplan G. L.
Nilsen Walter G.
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