Zincate type zinc alloy electroplating bath

Details Zincate type zinc alloy electroplating bath Zincate type zinc alloy electroplating bath

1989-11-17

1991-01-08

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 356

Patent

active

049832638

ABSTRACT:
A zincate type zinc alloy electroplating bath which comprises a Zn compound, an alkali hydroxide, a salt of Fe(II, III) or Ni(II), a chelating agent for dissolving said salt of Fe(II, III) or Ni(II) and brightening agents. The chelating agent is selected from the group consisting of a commercially available chelating agent and a reaction product of a mixture of one or more kinds of aliphatic amine with epihalohydrin. The brightening agents contain alkylated polyalkylene polyamine in which some of the basic nitrogen atoms of polyalkylene polyamine are alkylated by alkyl groups of C.sub.1 to C.sub.3, and one or more compounds selected from the group consisting of reaction products of imidazole or its derivative with epihalohydrin and reaction products of imidazole or its derivative with epihalohydrin in the presence of aliphatic amine.

REFERENCES:
patent: 4861442 (1989-08-01), Nishihama et al.
patent: 4877496 (1989-10-01), Yanagawa et al.

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