Polyamine additives in alkaline zinc electroplating

Details Polyamine additives in alkaline zinc electroplating Polyamine additives in alkaline zinc electroplating

C - Chemistry, Metallurgy

25

D

204/37, 260/594.

C25D 3/22 (2006.01) C25D 3/24 (2006.01)

Patent

CA 1085421

ABSTRACT Alkaline zinc electroplating, from baths with small amounts of cyanide or cyanide-free, is enhanced by the use of certain water-soluble polyamines as brighteners. These are the reaction products of first condensing an alkanolamine with an epihalohydrin, and then reacting the condensation product with an amine. - 1 -

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