PROBLEM TO BE SOLVED: To provide a rubber composition for a tire for improving low heat-generation property and mechanical characteristics.SOLUTION: There is provided a rubber composition for a tire obtained by blending 20 to 80 pts.wt. of carbon black having a nitrogen absorption specific surface area 50 to 150 m/g into 100 pts.wt. of a rubber composition which is composed of 30 to 100 wt.% of a masticated masterbatch in which 0.3 to 5.0 wt.% of a specific compound represented by the general formula (i) is coexisted in 40 wt.% or more of a natural rubber and/or an isoprene rubber and 100 wt.% of a diene-based rubber optionally including a styrene-butadiene rubber and 70 to 0 wt.% of the total of a styrene-butadiene rubber, a natural rubber and an isoprene rubber and includes more than 30 wt.% and 90 wt.% or less of the total of the natural rubber and the isoprene rubber in the rubber component and 10 wt.% or more and less than 70 wt.% of the styrene-butadiene rubber.SELECTED DRAWING: None

    【課題】低発熱性および機械的特性を改良するタイヤ用ゴム組成物を提供する。【解決手段】天然ゴムおよび/またはイソプレンゴムを40重量%以上および任意にスチレンブタジエンゴムを含むジエン系ゴム100重量%に一般式(i)で表わされる特定の化合物0.3〜5.0重量%を共存させた素練りゴムマスターバッチ30〜100重量%、並びにスチレンブタジエンゴム、天然ゴムおよびイソプレンゴムの合計70〜0重量%からなるゴム成分であると共に、該ゴム成分中の前記天然ゴムおよびイソプレンゴムの合計を30重量%を超えて90重量%以下、並びにスチレンブタジエンゴム10重量%以上70重量%未満を含むゴム成分100重量部に対し、窒素吸着比表面積が50〜150m2/gであるカーボンブラックを20〜80重量部配合したことを特徴とする。【選択図】なし


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    Titel :

    RUBBER COMPOSITION FOR TIRE


    Weitere Titelangaben:

    タイヤ用ゴム組成物


    Beteiligte:

    Erscheinungsdatum :

    2016-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / 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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