PROBLEM TO BE SOLVED: To provide a rubber composition for studless tire exhibiting excellent on-ice performance and wet performance when making a tire and a studless tire using the rubber composition for studless tire.SOLUTION: There is provided a rubber composition for studless tire containing diene rubber, silica and thermal expandable micro capsule, the diene rubber contains natural rubber and specific conjugated diene rubber, the content of the natural rubber in the diene rubber is 30 to 60 mass%, the content of the specific conjugated diene rubber in the diene rubber is 10 to 70 mass%, the content of butadiene rubber in the diene rubber is 30 to 70 mass%, the specific conjugated diene rubber is a conjugated diene rubber manufactured by a specific manufacturing method, the content of the silica is 10 pts.mass or more based on 100 pts.mass of the diene rubber and the content of the thermal expandable micro capsule is 2 to 20 pts.mass based on 100 pts.mass of the diene rubber.SELECTED DRAWING: None

    【課題】タイヤにしたときに優れた氷上性能およびウェット性能を示すスタッドレスタイヤ用ゴム組成物および上記スタッドレスタイヤ用ゴム組成物を用いたスタッドレスタイヤを提供する。【解決手段】ジエン系ゴムとシリカと熱膨張性マイクロカプセルとを含有し、上記ジエン系ゴムが天然ゴムと特定共役ジエン系ゴムとを含み、上記ジエン系ゴム中の上記天然ゴムの含有量が30〜60質量%であり、上記ジエン系ゴム中の上記特定共役ジエン系ゴムの含有量が10〜70質量%であり、上記ジエン系ゴム中のブタジエンゴムの含有量が30〜70質量%であり、上記特定共役ジエン系ゴムが特定の製造方法により製造される共役ジエン系ゴムであり、上記シリカの含有量が上記ジエン系ゴム100質量部に対して10質量部以上であり、上記熱膨張性マイクロカプセルの含有量が上記ジエン系ゴム100質量部に対して2〜20質量部である、スタッドレスタイヤ用ゴム組成物。【選択図】なし


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    Title :

    RUBBER COMPOSITION FOR STUDLESS TIRE AND STUDLESS TIRE


    Additional title:

    スタッドレスタイヤ用ゴム組成物およびスタッドレスタイヤ


    Contributors:

    Publication date :

    2016-04-07


    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 / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / 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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