公开(公告)号：US3558448A

公开(公告)日：1971-01-26

申请号：US3558448D

申请日：1968-10-01

Applicant: COMPTEURS COMP D

Inventor： ACCARIES MAURICE ROGER ,  GIRARD MAURICE EMILE

IPC: C25D3/22 ,  C23B5/12

CPC classification number: C25D3/22

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: