Provided are: a rubber composition for tires having excellent wet grip performance at low temperatures; and a pneumatic tire using the same. A rubber composition for tires, which contains a rubber component, silica, and a compound represented by formula (I), and which has an acetone extraction amount of 16.0 mass% or more. (In formula (I), R1 represents a hydrocarbon group. R2 and R3 may be the same or different and each represents a hydrogen atom, a hydrocarbon group, or a-(AO) n-H group (n represents an integer of 1 or more, and each n of R2 and R3 may be the same or different. AO may be the same or different and each represents an oxyalkylene group having 2 or more carbon atoms. ), at least one of R2 and R3 is a-(AO) n-H group. ).

    提供一种低温下的湿抓地性能优异的轮胎用橡胶组合物以及使用其的充气轮胎。一种轮胎用橡胶组合物,含有橡胶成分、二氧化硅和下式(I)所表示的化合物,丙酮提取量为16.0质量%以上。(式(I)中,R1表示烃基。R2、R3相同或不同,表示氢原子、烃基或‑(AO)n‑H基(n表示1以上的整数,R2、R3的各n分别可相同或不同。AO相同或不同,表示碳数2以上的氧化烯基。),R2、R3中的至少一个为‑(AO)n‑H基。)。


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    Title :

    Rubber composition for tires, and pneumatic tire


    Additional title:

    轮胎用橡胶组合物以及充气轮胎


    Contributors:

    Publication date :

    2023-05-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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