Chemistry: electrical and wave energy – Processes and products
Patent
1988-05-31
1989-05-09
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
204 445, C25D 360
Patent
active
048286575
ABSTRACT:
An electroplating bath for the formation of a tin-cobalt, tin-nickel, or tin-lead binary alloy coating is produced by mixing (a) as alloy coating-forming agent a tin salt and one member selected from the group consisting of a cobalt salt, a nickel salt, and a lead salt, (b) 1-hydroxyethane-1,1-diphosphoric acid and/or a salt thereof, (c) methanesulfonic acid and/or an alkali salt thereof, and (d) an electroconductive salt. A coating formed by electroplating using the bath is stable and excellent in gloss.
REFERENCES:
patent: 4617097 (1986-10-01), Nobel et al.
patent: 4662999 (1987-05-01), Opaskar et al.
Fukuoka Kazuhiro
Konishi Haruo
Kaplan G. L.
Kosaku & Co., Ltd.
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