Title: Method of bright electroplating of tin-lead alloy

Abstract: A method of electroplating of tin-lead alloys, which comprises using a solution containing hydroxyalkyl sulfonic acid and its divalent tin salts and lead salts, said solution being mixed with reaction products of acetaldehyde with O-toluidine as additives for brightening.

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Inventors: Dohi, Nobuyasu (Kobe, JP)
Obata, Keigo (Himeji, JP)

Application Number: 687582
Filing Date: 1976-05-18
Publication_date: 1979-01-02
Assignee: Hyogo Prefectural Government (Kobe, JP)
Primary Class(es): 205/254
Other Classes:
US Patent Ref:

3905878

Sep, 1975

Dohi et al.

204/43.

Other Refs: 1151460

May, 1969	GB

Primary Examiner: Kaplan, G. L.
Assistant Examiner:
Attorney: