PROBLEM TO BE SOLVED: To provide a pneumatic tire having improved wet grip performance while maintaining fuel efficiency.SOLUTION: A pneumatic tire is provided, which has a tread composed of a rubber composition containing 0.5 part by mass or more of silica and 5 parts by mass or more of a rosin ester resin with respect to 100 parts by mass of a rubber component comprising 40 to 100 mass% of a styrene-butadiene rubber and 0 to 60 mass% by a butadiene rubber. The rubber composition shows an adhesive force of 400 or more measured by a predetermined adhesive force test method when an adhesive force of a reference rubber composition in which the whole amount of the resin has been replaced by oil is set to 100.SELECTED DRAWING: Figure 1

    【課題】低燃費性能を維持しながらウェットグリップ性能に優れた空気入りタイヤを提供すること。【解決手段】40〜100質量%のスチレンブタジエンゴムおよび0〜60質量%のブタジエンゴムを含むゴム成分100質量部に対し、シリカを0.5質量部以上、ロジンエステル樹脂を5質量部以上含有するゴム組成物により構成されたトレッドを備えた空気入りタイヤであり、前記ゴム組成物の所定の粘着力試験方法により測定される粘着力が、樹脂全量をオイルに置き換えたこと以外は同じ基準ゴム組成物の粘着力を100とした場合に400以上である空気入りタイヤ。【選択図】図1


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2018-05-24


    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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