RUBBER COMPOSITION AND METHOD FOR PRODUCING RUBBER COMPOSITION

摘要: PROBLEM TO BE SOLVED: To provide a rubber composition in which the reactivity of silane coupling agent with an inorganic filler such as silica is improved and excellent low heat-generating property.SOLUTION: The comprises component (A), phosphorous acid-based compound (B) represented by general formula (1) or salt (B), containing (C), (D). In formula, X, Xand Xare each independently O -CH-; Y, Yand Yare at least one selected from single bond, 1-6C linear branched aliphatic hydrocarbons, 6-20C aromatic hydrocarbons; Z, Zand Zare H, carboxy group.