C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/28, 204/27.5
C25D 3/32 (2006.01) C25D 3/36 (2006.01) C25D 3/60 (2006.01)
Patent
CA 1305941
ABSTRACT A tin, lead, or tin-lead alloy plating bath comprising, as essential ingredients, an alkali metal salt of an aliphatic or aromatic sulfocarboxylic acid of the general formula Image or Image wherein R is a C1-4 hydrocarbon radical, M1 is a hydrogen atom or alkali metal atom, M2 is an alkali metal atom, and X1 and X2 are each a hydrogen atom, OH, COOZ, or SO3Z (where Z represents a hydrogen atom or alkali metal atom), and a soluble divalent tin compound and/or a lead compound, at a pH of 3 to 8.5.
502289
Dohi Nobuyasu
Masaki Seishi
Obata Keigo
Okada Yukiyoshi
Okuhama Yoshiaki
Daiwa Fine Chemicals Co. Ltd.
Dohi Nobuyasu
Gowling Lafleur Henderson Llp
Ishihara Chemical Co. Ltd.
Obata Keigo
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