Patent application number | Description | Published |
20080210569 | Polyvinylammonium Compound, Method of Manufacturing Same, Acidic Solution Containing Said Compound and Method of Electrolytically Depositing a Copper Deposit - The invention relates to a polyvinylammonium compound, to a method of manufacturing said compound, to an aqueous acidic solution containing at least said Polyvinylammonium compound for electrolytically depositing a copper deposit as well as to a method of electrolytically depositing a copper deposit using said aqueous acidic solution, said polyinylammonium compound corresponding to the general chemical formula (1): as well as to polyvinylammonium compounds of the general chemical formula (1), wherein one of the monomer units or both having indices l and m are present in the neutral form. | 09-04-2008 |
20100300890 | PYROPHOSPHATE-BASED BATH FOR PLATING OF TIN ALLOY LAYERS - An aqueous cyanide-free electrolyte bath for plating of tin alloy layers on substrate surfaces comprising (i) a tin ion source and a source for another alloy element, characterised in that it further contains (ii) N-methyl pyrrolidone is described. | 12-02-2010 |
20100326838 | PYROPHOSPHATE-CONTAINING BATH FOR CYANIDE-FREE DEPOSITION OF COPPER-TIN ALLOYS - A pyrophosphate-containing bath for the cyanide-free deposition of copper alloys on substrate surfaces, comprising a reaction product of a secondary monoamine with a diglycidyl ether, is described. The electrolyte bath is suitable for the galvanic deposition of glossy white, even and uniform copper-tin alloy coatings. | 12-30-2010 |
20110215003 | Method of Inspecting a Metal Coating and a Method for Analytical Control of a Deposition Electrolyte Serving to Deposit Said Metal Coating - For fast and secure determination of the quality of a metal coating as well as of an electrolyte for depositing a metal, in particular for electrolytic deposition of nickel such as of semi-gloss nickel and bright nickel and for analytical control of the deposition electrolyte, a method of inspecting a metal coating is provided, which involves the following method steps: a) depositing the metal coating from a deposition electrolyte onto a working electrode; b) electrolytically dissolving the metal coating through anodic polarisation of the working electrode with respect to a counter electrode, which is in electrolytic contact with the working electrode; c) recording an electrical dissolution potential at the working electrode over time, said potential occurring during a dissolution of the metal coating; and d) determining a time-averaged vale of the dissolution potential. | 09-08-2011 |
20140042033 | ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS - 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. | 02-13-2014 |
20140124376 | PYROPHOSPHATE-CONTAINING BATH FOR CYANIDE-FREE DEPOSITION OF COPPER-TIN ALLOYS - A pyrophosphate-containing bath for the cyanide-free deposition of copper alloys on substrate surfaces, comprising a reaction product of a secondary monoamine with a diglycidyl ether, is described. The electrolyte bath is suitable for the galvanic deposition of glossy white, even and uniform copper-tin alloy coatings. | 05-08-2014 |
20150014177 | METHOD FOR PRODUCING MATT COPPER DEPOSITS - The present invention relates to a method for deposition of a matte copper coating wherein a first copper layer is deposited from an aqueous copper electrolyte which does not contain an organic compound comprising divalent sulfur. A second copper layer is then deposited onto the first copper layer from an aqueous copper electrolyte comprising a first and a second water soluble sulfur-containing additive wherein the first water soluble sulfur-containing compound is an alkyl sulfonic acid derivative and the second water soluble sulfur-containing additive is an aromatic sulfonic acid derivative. The method provides copper layers with a homogeneous and adjustable matte appearance for decorative applications. | 01-15-2015 |
20160053395 | GALVANIC NICKEL OR NICKEL ALLOY ELECTROPLATING BATH FOR DEPOSITING A SEMI-BRIGHT NICKEL OR NICKEL ALLOY - 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) | 02-25-2016 |
20160068983 | ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS - 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. | 03-10-2016 |