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Title: Bright palladium electroplating baths
Abstract:
The instant invention is particularly directed to a palladium electroplating bath and a method of plating therewith. The bath comprises essentially pure palladium free of alloying elements thereof and being in electrodepositable form, as well as a Class I brightener selected from the group consisting of methylene bis(napthlene sodium sulfonate), sodium benzene sulfonate, benzene sulfonimide and phenyl-sulfonic acid and a Class II organic brightener selected from the group consisting of benzaldehyde-o-sodium sulfonate, 2-butyne-1, 4-diol, 2 butene-1,4- diol and allyl sulfonate in order to improve the brightness of the deposit. The bath is particularly effective in plating palladium and alloys thereof.
Other info: Inventors: Deuber, John Martin (Nutley, NJ, US) Application Number: 834349 Filing Date: 1977-09-19 Publication_date: 1978-07-04 Assignee: Oxy Metal Industries Corporation (Warren, MI) Primary Class(es): 205/265 Other Classes: US Patent Ref:
Other Refs:
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