M&t Chemicals, Inc.

Otto Kardos

Donald A Arcilesi

Silvester P Valayil

Ronald J Lash

Frank Passal

In accordance with certain of its aspects, this invention relates to a process for the preparation of an electrodeposit which contains iron and at least one metal selected from the group consisting of nickel and cobalt which comprises passing current from an anode to a cathode through an aqueous plating solution containing an iron compound and at least one member selected from the group consisting of cobalt compounds and nickel compounds providing cobalt or nickel ions for electrodepositing alloys of iron with cobalt and/or nickel and containing an effective amount of at least one substituted or unsubstituted dihydroxybenzene complexing agent.

Alloy plating

The novel process of this invention for electroplating a bright brass onto basis metal comprises passing current from an anode to a basis metal cathode through an aqueous alkaline cyanide plating solution containing:

Brass plating

This invention relates to novel compositions and to a process for electrodepositing copper from an aqueous acidic copper plating bath containing at least one member independently selected from each of the following two groups:

Electrodeposition of copper

This invention relates to novel compositions and to a process for electrodepositing copper from an aqueous acidic copper plating bath containing at least one member independently selected from each of the following two groups: A. an aryl amine selected from those exhibiting the formulae: ##STR1## and its reaction product.sup.2 with propane sultone; ##STR2## wherein Z is selected from the group consisting of oxygen and --NCH.sub.2 --C.sub.6 H.sub.5 ; B. sulfoalkyl sulfide compounds containing the grouping --S--Alk--SO.sub.3 M where M is one gram-equivalent of a cation and --Alk-- is a divalent aliphatic hydrocarbon group of 1 to 8 carbon atoms.

This invention relates to a process and to novel compositions for electrodepositing copper from an aqueous acidic copper plating bath containing at least one member from each of the following two groups:

This invention relates to novel compositions and to a process for electrodepositing copper from an aqueous acidic copper plating bath containing at least one member independently selected from each of the following two groups: A. an aryl amine selected from those exhibiting the formulae: ##SPC1## B. sulfoalkyl sulfide compounds containing the grouping --S--Alk--SO.sub.3 M where M is one gram - equivalent of a cation and --Alk-- is a divalent aliphatic hydrocarbon group of 1 to 8 carbon atoms.

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Ferndale, MI, United States of America

Otto Kardos