| abstract |
[PROBLEMS] To improve the heat aging resistance, reinforcement, wear resistance, etc. of rubber by uniformly dispersing an anti-aging agent without using a surfactant, and having good standing stability. A method for efficiently producing a wet masterbatch is provided. SOLUTION: (a) a step of coagulating a rubber liquid containing a rubber component, (b) a step of taking out a solidified product formed in the step (a), and (c) taken out in the step (b). It is a method for producing an anti-aging agent-containing wet masterbatch, comprising a step of drying a coagulated product, wherein the anti-aging agent is mixed with the coagulated product while applying mechanical shearing force in the drying step (c). [Selection figure] None |