UNVULCANIZED RUBBER COMPOSITION, PROCESS FOR PRODUCING SAME, AND PNEUMATIC TIRE

摘要

Provided is a process for producing an unvulcanized rubber composition comprising the steps of: (I) using at least two different types of rubber latex solutions and a filler dispersed in a dispersion medium to produce a filler-containing slurry solution; (II) mixing the filler-containing slurry solution with a rubber latex solution to produce a filler-containing rubber latex solution; and (III) coagulating and drying the filler-containing rubber latex solution to produce a rubber wet master batch. Preferably, the rubber latex solution comprises a natural rubber latex solution and at least one item selected from a group consisting of styrene-butadiene rubber latex solutions, butadiene rubber latex solutions, and isoprene rubber latex solutions.