METHOD FOR PRODUCING A MASTERBATCH OF SYNTHETIC DIENE ELASTOMER AND CARBONATED FILLER

摘要

The invention relates to a method for producing a masterbatch of synthetic elastomer and carbonated filler, comprising the following steps: producing an aqueous dispersion of carbonated filler having a zeta potential of the opposite sign to that of an anionic or cationic synthetic elastomer latex, the difference between the potentials of the anionic or cationic elastomer latex and the aqueous dispersion of carbonated filler being such that the absolute value thereof is higher than, or equal to, 20mV; bringing into contact and mixing the anionic or cationic synthetic elastomer latex and the aqueous dispersion of carbonated filler in order to produce a coagulum; recovering the coagulum; and drying the recovered coagulum in order to produce the masterbatch.