Electroplating bath and process

Details Electroplating bath and process Electroplating bath and process

1979-05-15

1980-06-10

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 322

Patent

active

042071500

ABSTRACT:
A non-cyanide zinc electroplating bath containing an effective brightening and leveling amount of a leveling and brightening agent comprising a bath soluble butyl nicotinate sulfate or sulfonated quaternary salt. The electroplating bath may further advantageously incorporate an effective brightening amount of a polyether compound as a supporting brightening agent and an effective leveling amount of methane sulfonic acid and salts thereof as a supporting leveling agent. The improved leveling of the bright electrodeposited zinc plate in accordance with the process aspects is attained over a relatively broad range of pH from about 2.0 to 7.5, and current density.

REFERENCES:
patent: 3318787 (1967-05-01), Rindt et al.
patent: 3769184 (1973-10-01), Rushmere
patent: 3823076 (1974-07-01), Rushmere
patent: 3909373 (1975-09-01), Creutz
patent: 4071418 (1978-01-01), James
patent: 4071419 (1978-01-01), James

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