To provide a rubber composition for tire tread capable of providing a tire tread excellent in balance of durability such as abrasion resistance, cutting resistance and tear resistance, and a rolling resistance reduction, the tire tread and a tire, excellent in balance of durability such as abrasion resistance, cutting resistance and tear resistance, and a rolling resistance reduction.SOLUTION: There is provided a rubber composition for tire tread containing a rubber component (A) containing a natural rubber (A1) and a polybutadiene rubber (A2) having cis 1,4-binding amount of 90% or more, carbon black (B) having CTAB specific surface area of 100 to 150 m/g, and silica (C) having CTAB specific surface area of 200 m/g of less than 10 pts.mass based on 100 pts.mass of the rubber component (A), and having a ratio of the silica (C) in total amount of the carbon black (B) and the silica (C) of 0.1 to 10 mass% and the natural rubber (A1):the polybutadiene rubber (A2)=30:70 to 70:30 by mass ratio.SELECTED DRAWING: None


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    Title :

    タイヤトレッド用ゴム組成物、タイヤトレッド、及びタイヤ


    Publication date :

    2022-09-26


    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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