PROBLEM TO BE SOLVED: To provide a winter tire in which conductivity, high mileage property, performance on ice and snow, high-speed performance (steering stability and grip performance) on a low-temperature road without ice or snow, and road noise resistance performance are improved in a well-balanced manner.SOLUTION: A pneumatic tire is provided, which has two-layer tread having a base tread and a cap tread: the base tread is made of a rubber composition for a base tread, which comprises a rubber component comprising natural rubber and/or isoprene rubber, and a predetermined amount of a filler comprising silica and carbon black; and the cap tread is made of a rubber composition for a cap tread, which contains a predetermined amount of silica, and includes air bubbles and/or pores.SELECTED DRAWING: None

    【課題】導電性、低燃費性、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)、及び耐ロードノイズ性能をバランス良く改善した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を含むゴム成分、シリカ及びカーボンブラックを含む充填剤を所定量含有するベーストレッド用ゴム組成物からなるベーストレッドと、所定量のシリカを含有するキャップトレッド用ゴム組成物からなり、かつ気泡及び/又は空孔を含むキャップトレッドとを有する2層トレッドが備えられた空気入りタイヤ。【選択図】なし


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2018-04-05


    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 / 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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