Method of electroplating zinc and electrolyte therefor
Abstract
Abstract ATTACHED TO AN NH2-CS-NH2 GROUP, R BEING A CARBONACEOUS RADICAL OF A PHENOL-ALDEHYDE OR OF ITS ETHEROXIDE DERIVATIVES. NH2-C(=S)-NH-N=CH-R AN ACIDIC ELECTROLYTIC SOLUTION FOR DEPOSITING ZINC ON VARIOUS PARTS COMPRISING, IN A DEMINERALIZED AQUEOUS SUPPORT, A HYDRATED ZINC SULFATE, AN AMMONIUM SULFATE, A THIO-SEMICARBAZONE COMPOUND ATTACHED TO A THIO-UREA GROUP AS A BRIGHTENING AGENT, AND A NON-IONIC MOISTENING AGENT. TO OBTAIN THE BRIGHTENING AGENT, A PHENOL ALDEHYDE IS MADE TO REACT WITH THIO-UREA IN A HYDROALCOHOLIC MEDIUM, A THIOSEMICARBAZIDE COMPOUND IS PREPARED, WHICH IS DISSOLVED IN A HYDROALCOHOLIC SOLUTION AND WHICH IS ADDED TO THE PRODUCT OF THE PHENOL-ALDEHYDE AND THIO-UREA REACTION SO AS TO OBTAIN A COMPOUND OF THE FORMULA:
Inventors
- 👤 Maurice Roger Accaries
- 👤 Maurice Emile Girard
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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