| abstract |
A method for producing a masterbatch and a method for producing a tire capable of reducing Mooney viscosity are provided. SOLUTION: A step of coagulating a rubber latex before coagulation treatment containing a filler to obtain a coagulated product, a step of dehydrating the coagulated product, and a step of plasticizing the coagulated product after dehydration by drying with an extruder. A method for producing a masterbatch comprising a demulsifying agent in which the coagulated material is plasticized while being dried and the dehydrated coagulated material is plasticized. [Selection] Figure 1 |