| 摘要 |
<p>A composition comprising 2-alkylthio- or 2-aryl(heteroyl)thio-substituted p-phenylenediamine of formula (I), where X and Y are the same or different and selected from the group NH2 or NHR (whwere R is alkyl, cycloakyl or aryl); and R' is alkyl, cycloalkyl, alkylene aryl, arylene, alkyle3-propionate,bridging groups or carbon based heteroclic group containing at least one of S or N, or both S and N; its method of preparation, and its use as an antidegradant in natural or synthetic rubber.</p> |
