Electrolyte for chromium deposition from Cr(III)-compounds

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United States of America

PATENT NO 11932958
SERIAL NO

17517387

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Abstract

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A method for preparing a Cr(III)-plating solution is disclosed. The method comprises or consists of the steps of (a) providing an aged aqueous Cr(III)-solution; (b) adding a polycarbonate or a derivative thereof to the solution of step (a); and (c) adding a borate to the solution of step (b). In addition, a plating solution obtainable by the present method is disclosed, and a plating solution comprising or consisting of Cr(III)-ions, a polycarbonate or a derivative thereof, a borate, water, sulfate, and positive ions selected from the group consisting of hydrogen ions, alkali metal ions and earth alkali metal ions.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITAET ULMDEZERNAT I / ABTEILUNG I-1 FORSCHUNG UND TECHNOLOGIETRANSFER ULM 89069

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jacob, Timo Neu-Ulm, DE 2 8
Kibler, Ludwig Hochdorf, DE 1 0
Sheasha, Yasser Ulm, DE 1 0

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