To improve snow performance and wet performance.SOLUTION: A rubber composition for tires contains: a rubber component containing a natural rubber, a styrene-butadiene rubber and a butadiene rubber; silica; and an ether ester compound represented by general formula (1) and having an HLB of 10 or less. In the formula, Rand Reach represent a C1-30 hydrocarbon group; Rrepresents a C2-4 alkylene group; n represents an average addition molar number; and 60 mass% or more of (RO)consists of oxyethylene groups. A pneumatic tire includes a tread comprising the rubber composition.SELECTED DRAWING: None

    【課題】スノー性能とウェット性能を向上させる。【解決手段】天然ゴムとスチレンブタジエンゴムとブタジエンゴムを含むゴム成分、シリカ、及び、下記一般式(1)で表されるHLBが10以下のエーテルエステル化合物、を含むタイヤ用ゴム組成物である。式中、R1及びR2は炭素数1〜30の炭化水素基、R3は炭素数2〜4のアルキレン基、nは平均付加モル数を表し、(R3O)nの60質量%以上がオキシエチレン基からなる。また、該ゴム組成物からなるトレッドを備えた空気入りタイヤである。【化1】【選択図】なし


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    Title :

    RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE


    Additional title:

    タイヤ用ゴム組成物及び空気入りタイヤ


    Contributors:

    Publication date :

    2019-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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