FIELD: chemistry.
SUBSTANCE: invention relates to a method of obtaining a mother stock of a diene elastomer and silicon oxide. The method includes the following steps: doping silicon oxide with aluminium; preparing a dispersion of the doped silicon oxide in water; bringing into contact and mixing concentrated natural latex and the aqueous dispersion of the doped silicon oxide to obtain a coagulate. The mother stock is obtained by extracting the coagulate and drying the extracted coagulate. At the contact step, pH of the composition is higher than 4.
EFFECT: invention enables to obtain a mother stock with output higher than 80%.
17 cl, 6 tbl, 4 ex
