Polyamine additives in alkaline zinc electroplating

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

1975-09-29

1977-09-06

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

204DIG2, 204 55Y, 260 2BP, C25D 322, C25D 324

Patent

active

040466485

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.

REFERENCES:
patent: 2485563 (1949-10-01), Chester et al.
patent: 2791554 (1957-05-01), Winters
patent: 3031504 (1962-04-01), Pollitzer
patent: 3219560 (1965-11-01), Leenders et al.
patent: 3317412 (1967-05-01), Dahlmann
patent: 3853718 (1974-10-01), Creutz
patent: 3856637 (1974-12-01), Kessler
patent: 3988219 (1976-10-01), Rosenberg
patent: 4007098 (1977-02-01), Rosenberg

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