Polyoxalkylated polyhydroxy compounds as additives in zinc alloy

Details Polyoxalkylated polyhydroxy compounds as additives in zinc alloy Polyoxalkylated polyhydroxy compounds as additives in zinc alloy

1988-11-02

1990-02-06

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 356

Patent

active

048986526

ABSTRACT:
An improved aqueous acidic electrolyte suitable for electrodepositing zinc alloys comprising a combination of zinc and at least one metal selected from the group consisting of nickel, cobalt, iron, and mixtures thereof incorporating an effective amount of an additive agent for providing improved grain-refinement and enhancing the adjustment of the codeposition of the alloying metals in the zinc alloy deposit. The additive agent comprises a bath soluble polyhydroxy compound having three or more hydroxyl groups at least one of which is substituted with a polyoxyalkylene group.
The present invention further encompasses the process of employing the aforementioned electrolyte for the deposition of functional and decorative zinc alloy electrodeposits.

REFERENCES:
patent: 4285802 (1981-08-01), Rynne
patent: 4388160 (1983-06-01), Rynne
patent: 4515663 (1985-05-01), Strom et al.
patent: 4578158 (1986-03-01), Kanamara et al.
patent: 4597838 (1986-07-01), Bammel

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