| abstract |
Blocked mercaptosilanes which correspond to the general formula I DOLLAR A (R · 1 · O) ¶3¶Si-R · 2 · -S-C (= O) -C¶17¶H¶35¶ DOLLAR A. DOLLAR A They are prepared by reacting the corresponding mercaptosilane (R · 1 · O) ¶3¶Si-R · 2 · -SH with stearic acid chloride in the presence of an auxiliary base in a suitable organic solvent, to complete the reaction the mixture to boiling heated, filtered off from the solid residue formed and the solvent was distilled off. DOLLAR A The blocked mercaptosilanes can be used in rubber compounds. |