PROBLEM TO BE SOLVED: To provide a rubber composition for tire tread which is used for a studless tire and enhances on-ice performance and wet performance than a conventional level.SOLUTION: There is provided a rubber composition by blending 20 pts.wt. or more of silica and 1 to 10 pts.wt. of a liquid resin at room temperature with 100 pts.wt. of a diene rubber, where the diene rubber contains a natural rubber and a butadiene rubber and has an average glass transition temperature of -60°C or less and the liquid resin at room temperature is an addition product of camphene and a phenolic compound and has the glass transition temperature of -10°C to 10°C.

    【課題】スタッドレスタイヤに用いるタイヤトレッド用ゴム組成物であって、氷上性能およびウェット性能を従来レベル以上に向上するようにしたタイヤトレッド用ゴム組成物を提供する。【解決手段】ジエン系ゴム100重量部に、シリカを20重量部以上、室温で液状の樹脂を1〜10重量部配合したゴム組成物であって、前記ジエン系ゴムが天然ゴムおよびブタジエンゴムを含有し、その平均ガラス転移温度が−60℃以下であり、前記室温で液状の樹脂が、カンフェンとフェノール化合物の付加物で、そのガラス転移温度が−10℃〜10℃であることを特徴とする。【選択図】なし


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    Title :

    RUBBER COMPOSITION FOR TIRE TREAD


    Additional title:

    タイヤトレッド用ゴム組成物


    Contributors:
    SATO MASAKI (author)

    Publication date :

    2015-11-12


    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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