To provide a rubber composition for tires improved in fracture characteristics and snow performance, a tread comprising the rubber composition for tires, and a tire including the tread.SOLUTION: The rubber composition for tires contains a rubber component, a filler, and a softener. The rubber component contains a styrene-butadiene rubber and an isoprene rubber. The filler contains silica. The softener contains a modified liquid butadiene polymer modified with a functional group containing at least one element selected from the group consisting of silicon, nitrogen and oxygen. The content of the isoprene rubber in the rubber component is 50 mass% or less.SELECTED DRAWING: Figure 1

    【課題】破壊特性およびスノー性能が向上したタイヤ用ゴム組成物、該タイヤ用ゴム組成物からなるトレッドおよび該トレッドを含んでなるタイヤを提供すること。【解決手段】タイヤ用ゴム組成物であって、前記タイヤ用ゴム組成物がゴム成分、充填剤および軟化剤を含み、前記ゴム成分がスチレンブタジエンゴムおよびイソプレン系ゴムを含み、前記充填剤がシリカを含み、前記軟化剤が珪素、窒素および酸素からなる群から選択される少なくとも一つの元素を含む官能基によって変性された変性液状ブタジエン系重合体を含み、前記ゴム成分中のイソプレン系ゴムの含有量が50質量%以下である、タイヤ用ゴム組成物。【選択図】図1


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    Title :

    RUBBER COMPOSITION FOR TIRES, TREAD, AND TIRE


    Additional title:

    タイヤ用ゴム組成物、トレッドおよびタイヤ


    Contributors:

    Publication date :

    2021-08-10


    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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