PROBLEM TO BE SOLVED: To provide a rubber composition for tire outer layers that can improve ozone resistance, discoloration resistance, and chipping resistance in a balanced manner, and a pneumatic tire prepared therewith.SOLUTION: A rubber composition for tire outer layers contains, based on a rubber component 100 pts.mass containing natural rubber and butadiene rubber, aliphatic polybasic acid ester with a freezing point of -50 to -10°C of 0.5-10 pts.mass.SELECTED DRAWING: None

    【課題】耐オゾン性、耐変色性、耐チッピング性をバランス良く改善できるタイヤ外層用ゴム組成物、及びこれを用いた空気入りタイヤを提供する。【解決手段】天然ゴム及びブタジエンゴムを含むゴム成分100質量部に対して、凝固点−50〜−10℃の脂肪族多塩基酸エステルを0.5〜10質量部含有するタイヤ外層用ゴム組成物。【選択図】なし


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    Title :

    RUBBER COMPOSITION FOR TIRE OUTER LAYERS AND PNEUMATIC TIRE


    Additional title:

    タイヤ外層用ゴム組成物及び空気入りタイヤ


    Contributors:

    Publication date :

    2018-08-02


    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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