ES320342A1 - Procedure for the repair of a stylized bath for the chemical baking. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the repair of a stylized bath for the chemical baking. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Bayer Pharma AG
Original Assignee
Schering AG
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Publication date
Application filed by Schering AGfiledCriticalSchering AG
Publication of ES320342A1publicationCriticalpatent/ES320342A1/en
Process for the preparation of a stabilized bath for chemical coppering, characterized in that one or more compounds of the general formula ** (See formula) ** where they mean X = S = NH, R1 = hydrogen, alkyl, optionally substituted aryl, carboxyalkyl or the amino group, and R2 = hydrogen, alkyl or the nitro group, are mixed in amounts of about 0.001 to 0.5 g/l, preferably 0.001 to 0.05 g/l, with aqueous alkaline solutions containing a dissolved inorganic cupric salt and an amount sufficient for the chemical reduction of this copper salt to the copper metal state, of a chemical reducing agent, preferably to formaldehyde, as well as optionally a complexing agent, a humectant and a brightening agent. (Machine-translation by Google Translate, not legally binding)
ES0320342A1965-02-201965-12-03Procedure for the repair of a stylized bath for the chemical baking. (Machine-translation by Google Translate, not legally binding)
ExpiredES320342A1
(en)
Improvements introduced in the preparation of a bathroom of electrodeposition, acid, to deposit tin. (Machine-translation by Google Translate, not legally binding)