E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C15504 C07C15509
US Classification:
260545R
Abstract:
Novel 1-hydrocarbyl-3-(thiocarbamoylthio)ureas and 1-hydrocarbyl-3-(carbamoylthio)ureas are prepared by reacting, in liquid phase, an appropriate isocyanate and S-thiocarbamoylhydrosulfamine or S-carbamoylhydrosulfamine, e. g. , S-(dimethylthiocarbamoyl)-N-methylhydrosulfamine or S-(dimethylcarbamoyl)hydrosulfamine. All the compounds are useful as rubber-curing agents.