| abstract |
method for producing rubber composition the present invention provides a method for producing a rubber composition containing a rubber component (a) from at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (b), a silane coupling agent (c) and at least one vulcanization promoter (d) selected from tiurarns, dithiocarbate salts, thioureas and xanthate salts, in which the rubber composition is kneaded in multiple stages, and in the first stage of nannies itchy, the rubber component (a), all or part of the inorganic filler (b), all or part of the silane coupling agent (c) and the vulcanization promoter (d) are kneaded. the production method allows the production of a rubber composition having a low heat generation property while successfully increasing the coupling function activity of the silane coupling agent. |