Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating substrate prior to coating
Patent
1991-03-08
1993-03-16
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Treating substrate prior to coating
205219, 205263, C25D 534, C25D 341
Patent
active
051941392
ABSTRACT:
An acidic pretreating solution for silver plating, which comprises as an agent for preventing the silver deposition by displacement, an inorganic acid and/or an organic acid, and a silver plating process which uses this pretreating solution. The pretreating solution provides long lasting preventive effect against silver deposition by displacement and the resulting silver plated layer firmly adheres to a metal substrate surface.
REFERENCES:
patent: 3645858 (1972-02-01), Dingley et al.
patent: 4452673 (1984-06-01), Takano
patent: 4604167 (1986-08-01), Wakabayashi et al.
Hisumi Yoshiyuki
Kinase Takashi
Bolam Brian M.
Niebling John
Nippon Mining Company Limited
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