Atotech Deutschland Gmbh

Philipp Wachter

Philip Hartmann

Christina Pfirrmann

Klaus-Dieter Schulz

Berkem Özkaya

Stefan Kretschmer

Nancy Born

Heiko Brunner

Lars Kohlmann

Mike Briese

Richard Richter

Juan-Carlos Umaran

Rajasekaran Neelamegam

Galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or semi-bright nickel alloy coating in which the electroplating bath includes at least one compound having the general formula (1) and/or a salt thereof 

Galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or semi-bright nickel alloy coating

A method for post-treatment of a chromium finish surface to improve corrosion resistance comprising a) providing a substrate having a chromium finish surface, and at least one intermediate layer between the chromium finish surface and the substrate, selected from the group consisting of nickel, nickel alloys, copper and copper alloys, wherein the chromium finish surface is a surface of a trivalent chromium plated layer, obtained by electroplating the substrate, having the at least one intermediate layer, in a plating bath, the plating bath comprising chromium (III) ions; b) contacting the chromium finish surface with an aqueous solution, comprising a permanganate, at least one compound which is selected from a phosphorus-oxygen compound, a hydroxide, a nitrate, a borate, boric acid, a silicate, or a mixture of two or more of these compounds; c) forming a transparent corrosion protection layer onto the chromium finish surface during step b.

Method for treatment of a chromium finish surface

Aqueous acidic copper electroplating bath comprising: copper ions; at least one acid; halide ions; at least one sulfur containing compound selected form the group consisting of sodium 3-mercaptopropylsulfonate, bis(sodiumsulfopropyl)disulfide, 3-(N,N-dimethylthiocarbamoyl)-thiopropanesulfonic acid or the respective sodium salt thereof and mixtures of the aforementioned; at least one amine reaction product of diethylamine with epichlorohydrin or an amine reaction product of isobutyl amine with epichlorohydrin or mixtures of these reaction products; at least one ethylene diamine compound selected from the group having attached EO-PO-block polymers, attached EO-PO-block polymers and sulfosuccinate groups and mixtures thereof; at least one aromatic reaction product of benzylchloride with at least one polyalkylenimine and a method for electrolytically depositing of a copper coating using the electroplating bath.

Aqueous acidic copper electroplating bath and method for electrolytically depositing of a copper coating

The present invention relates to a plating composition for electrolytic copper deposition, comprising copper ions, halide ions and at least one acid, at least one benzothiazole compound, at least one phenazine dye and at least one ethanediamine derivative. The present invention further concerns the use of above plating composition and a method for electrolytically depositing a copper or copper alloy layer onto at least one surface of a substrate.

Plating compositions for electrolytic copper deposition, its use and a method for electrolytically depositing a copper or copper alloy layer onto at least one surface of a substrate

Method for increasing corrosion resistance of substrate including an outermost chromium alloy layer, including

Method for increasing corrosion resistance of a substrate comprising an outermost chromium alloy layer

A method for electrolytically passivating an outermost chromium or chromium alloy layer to increase corrosion resistance thereof, including steps of

Method for electrolytically passivating an outermost chromium or outermost chromium alloy layer to increase corrosion resistance thereof

The present invention concerns a method for increasing the adhesion between a chromium surface and a lacquer wherein said chromium surface is contacted with an aqueous solution comprising at least one phosphorous compound according to formulae R&#x2014;P(O)(OR)(OR) 1 and R&#x2014;O&#x2014;P(O)(OR)(OR) 2 wherein Ris a Cto Calkyl group, linear, branched or cyclic comprising at least one polar residue and Rand Rare independently selected from the group consisting of hydrogen, lithium, sodium, potassium, ammonium and Cto Calkyl while passing an external electrical current through said substrate and at least one anode wherein said substrate serves as the cathode.

Method for increasing adhesion between a chromium surface and a lacquer

The invention relates to methods and plating baths for electrodepositing a dark chromium layer on a workpiece. The trivalent chromium electroplating baths comprise sulphur compounds and the methods for electrodepositing a dark chromium layer employ these trivalent chromium electroplating baths. The dark chromium deposits and workpieces carrying dark chromium deposits are suited for application for decorative purposes.

Electroplating bath and method for producing dark chromium layers

The invention relates to electroplating baths and methods for electrodepositing a dark chromium layer on a workpiece. The trivalent chromium electroplating baths comprise sulphur compounds and the methods for electrodepositing a dark chromium layer employ these trivalent chromium electroplating baths. The dark chromium deposits and workpieces carrying dark chromium deposits are suited for application for decorative purposes.

Disclosed is a chemical compound useful in a galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or bright nickel alloy coating characterized in that the chemical compound has general formula IA: in which in general formula IA, Rand R&#x2550;-CHCHor Rand Rtaken together with the N atom form a pyrrolidine ring or a morpholine ring.

3-(carbamoyl) pyridinium-1-YL-propane-1-sulfonates useful in electroplating baths

The present invention is related to a galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or nickel alloy coating characterized in that the electroplating bath comprises at least one compound having the general formula (I) 

Galvanic nickel electroplating bath for depositing a semi-bright nickel

The present invention concerns a method for cathodic corrosion protection of a substrate having a chromium surface and at least one intermediate layer between the substrate and the chromium surface, selected from the group comprising nickel, nickel alloys, copper and copper alloys and wherein said chromium surface is contacted with an aqueous solution comprising at least one compound containing phosphorous while passing an electrical current through said substrate, at least one anode and the aqueous solution wherein said substrate serves as the cathode.

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Berlin, Germany

Philipp Wachter