| abstract |
The invention relates to a process for preparing a masterbatch in the liquid phase based on one or more diene elastomer latexes and on one or more fillers which coagulate spontaneously with said latex, comprising the following successive steps: - preparing a stable and homogenous aqueous dispersion (C) containing one or more surfactants, by mixing one or more diene elastomer latexes (A) with one or more aqueous dispersions (B) of one or more fillers which coagulate spontaneously, - homogenization of the aqueous dispersion (C), - reduction of the chemical potential of the surfactant in the aqueous dispersion (C) until coagulation of said diene elastomer latex(es) with the filler(s), - recovery of the coagulum, - drying of the recovered coagulum in order to obtain the masterbatch. |