Atotech Deutschland Gmbh

Atotech Usa, Inc.

Vincent C Opaskar

Lee Capper

Craig V Bishop

Paul Christopher Wynn

Lee Desmond Capper

An electroplating bath, a system, a process for, and the article obtained from, depositing a zinc-nickel ternary or higher alloy, a) zinc ions; b) nickel ions; and c) one or more ionic species selected from ions of Te, Biand Sb, and in some embodiments, further including one or more additional ionic species selected from ions of Bi, Sb, Ag, Cd, Co, Cr, Cu, Fe, In, Mn, Mo, P, Snand W. In some embodiments, the system includes a divider forming a cathodic chamber and an anodic chamber, with the electroplating bath in the cathodic chamber only. In various embodiments, the zinc-nickel ternary and higher alloys may provide improved properties to the conductive substrates upon which the alloys are deposited.

Articles with electroplated zinc-nickel ternary and higher alloys, electroplating baths, processes and systems for electroplating such alloys

The present invention relates to an aqueous plating bath for electrodeposition of tin-zinc alloys comprising at least one bath-soluble stannous salt, at least one bath soluble zinc salt, and a quaternary ammonium polymer selected from a ureylene quaternary ammonium polymer, an iminoureylene quaternary ammonium polymer or a thioureylene quaternary ammonium polymer. The plating baths also may contain one or more of the following additives: hydroxy polycarboxylic acids or salts thereof such as citric acid; ammonium salts; conducting salts; aromatic carbonyl-containing compounds; polymers of aliphatic amines such as a poly(alkyleneimine); and hydroxyalkyl substituted diamines as metal complexing agents. The plating baths of this invention deposit a bright and level deposit, and they can be adapted to provide plated alloys having high tin concentration over a wide current density range.

Plating bath and method for electroplating tin-zinc alloys

A composition of matter for electrolytically depositing a tin layer on an iron containing-substrate is disclosed comprising an acidic aqueous mixture of:

Halogen tin composition and electrolytic plating process

Surfactants made by the successive ethoxylation and propoxylation of diamines are effective in providing a fine-grain tin coating in high-speed strip-steel plating operations under conditions of high current density. Surfactants prepared by successive propoxylation and ethoxylation are also effective.

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Chagrin Falls, OH, United States of America

Vincent C Opaskar