To provide a tire rubber composition that can improve fuel economy, wet grip performance, and low-temperature properties, and a pneumatic tire prepared therewith.SOLUTION: A tire rubber composition has a rubber component, an inorganic filler, a thermoplastic elastomer having a functional group that reacts with or interacts a surface functional group of the inorganic filler and having a specific gravity of 1.00 or less, and a phosphoester with a freezing point of -55°C or less.SELECTED DRAWING: None

    【課題】低燃費性、ウエットグリップ性能、及び低温特性を向上させることができる、タイヤ用ゴム組成物、及びそれを用いた空気入りタイヤを提供する。【解決手段】ゴム成分、無機充填剤、上記無機充填剤の表面官能基と反応又は相互作用する官能基を持ち、比重が1.00以下である熱可塑性エラストマー、及び凝固点が−55℃以下であるリン酸エステルを含有することを特徴とする、タイヤ用ゴム組成物とする。【選択図】なし


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    Title :

    TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE PREPARED THEREWITH


    Additional title:

    タイヤ用ゴム組成物、及びそれを用いた空気入りタイヤ


    Contributors:

    Publication date :

    2019-06-13


    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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