Title: Baths and additives for the electrodeposition of bright zinc

Abstract: It has been found that aminated polyepichlorohydrins prepared by reacting polyepichlorohydrin with an amine selected from the group consisting of secondary aliphatic amines and secondary alicyclic amines result in a zinc electroplating bath brightener. Additionally, an aqueous, acid electroplating bath containing the aminated polyepichlorohydrin as well as polyoxyethylene condensates, and aromatic aldehydes and ketones act synergistically to provide bright, lustrous electrodeposits of zinc.

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Inventors: Rosenberg, William E. (Strongsville, OH, US)

Application Number: 593310
Filing Date: 1975-07-07
Publication_date: 1976-10-26
Assignee: Columbia Chemical Corporation (Cleveland, OH)
Primary Class(es): 205/314 205/311, 205/312, 528/405
Other Classes:
US Patent Ref:

2383798	Aug, 1945	Hull	204/50.
3026270	Mar, 1962	Robinson	260/2.
3251852	May, 1966	De Groote et al.	260/2.
3577313	May, 1971	Bolger et al.	260/2.
3625684	Dec, 1971	Poot et al.	260/2.
3746678	Jul, 1973	Dick et al.	260/2.
3803008	Apr, 1974	Rosenberg et al.	204/55.
3824158	Jul, 1974	Rosenberg	204/55.
3838026	Sep, 1974	Koch	204/55.
3853718	Dec, 1974	Creutz	204/55.
3869358	Mar, 1975	Nobel et al.	204/55.

Other Refs: 1,910,46617,630

Sep, 1970	DT
Sep, 1972	JA

Primary Examiner: Kaplan, G. L.
Assistant Examiner:
Attorney: Oldham & Oldham Co.