To provide a rubber composition for tires capable of improving wet grip properties and low rolling resistance of a tire in a well-balanced manner.SOLUTION: The rubber composition for tires according to the present invention contains a diene rubber, silica, and a silane compound represented by formula (1). The diene rubber contains at least one of an aromatic vinyl-conjugated diene copolymer rubber and a conjugated diene (co)polymer rubber. The average glass transition temperature of the diene rubber is -50°C or higher and lower than -20°C. The content of the silane compound is 0.5 pt.mass or more and 30 pts.mass or less based on 100 pts.mass of the silica.SELECTED DRAWING: Figure 1
【課題】タイヤのウエットグリップ性および低転がり抵抗性をバランス良く向上できるタイヤ用ゴム組成物の提供。【解決手段】本発明のタイヤ用ゴム組成物は、ジエン系ゴムと、シリカと、式(1)で表されるシラン化合物とを含み、前記ジエン系ゴムが、芳香族ビニル−共役ジエン共重合体ゴムおよび共役ジエン(共)重合体ゴムの少なくとも1種を含み、前記ジエン系ゴムの平均ガラス転移温度が、−50℃以上−20℃未満であり、前記シラン化合物の含有量が、前記シリカ100質量部に対して、0.5質量部以上30質量部以下である。【選択図】図1
RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE
タイヤ用ゴム組成物および空気入りタイヤ
08.04.2021
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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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