| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a rubber composition that has both ozone resistance and workability.SOLUTION: A method for producing a rubber composition comprises a nonpolar conjugated diene polymer, an olefin polymer, a binder and carbon black, characterized in that the rubber composition is mixed in a plurality of stages, where in the first stage mixing, the nonpolar conjugated diene polymer and the olefin polymer are mixed for preparing thermoplastic composition (A), and in the final stage mixing, they are blended with the binder.SELECTED DRAWING: None |
