PROBLEM TO BE SOLVED: To provide a winter tire in which high mileage property, wear resistance, performance on ice and snow, and high-speed performance (steering stability and grip performance) on a low-temperature road without ice or snow are improved in a well-balanced manner.SOLUTION: The winter tire has a cap tread made of the following rubber composition for a cap tread. The rubber composition comprises: a rubber component comprising natural rubber and/or isoprene rubber, butadiene rubber and styrene butadiene rubber; and a filler. In 100 mass% of the rubber composition, the total content of the natural rubber, the isoprene rubber and the butadiene rubber is 80 mass% or more, the content of the butadiene rubber is 30 mass% or more, and the content of the styrene butadiene rubber is 0.3 to 10 mass%; and the content of silica is 60 mass% or more in 100 mass% of the filler. The cap tread includes air bubbles and/or pores.SELECTED DRAWING: None

    【課題】低燃費性、耐摩耗性、氷雪上性能、氷雪がない低温路面での高速性能(操縦安定性、グリップ性能)をバランス良く改善するスタッドレスタイヤを提供する。【解決手段】天然ゴム及び/又はイソプレンゴムと、ブタジエンゴムと、スチレンブタジエンゴムとを含むゴム成分、並びに、充填剤を含有し、前記ゴム成分100質量%中の前記天然ゴム、前記イソプレンゴム及び前記ブタジエンゴムの合計含有量が80質量%以上、前記ブタジエンゴムの含有量が30質量%以上、前記スチレンブタジエンゴムの含有量が0.3〜10質量%、前記充填剤100質量%中のシリカの含有量が60質量%以上であるキャップトレッド用ゴム組成物からなるキャップトレッドを有し、前記キャップトレッドは、気泡及び/又は空孔を含むスタッドレスタイヤ。【選択図】なし


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    Title :

    WINTER TIRE


    Additional title:

    スタッドレスタイヤ


    Contributors:

    Publication date :

    2018-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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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