To provide a rubber composition for a tire tread capable of comprehensively improving fuel economy, wet grip performance, fracture characteristics and processability in a well-balanced manner, a tire tread comprising the rubber composition, and a passenger car tire including the tire tread.SOLUTION: The rubber composition for a tire tread contains: a rubber component containing an isoprene rubber and a styrene-butadiene rubber; a filler containing 20 mass% or more of silica and 20 mass% or more of carbon black; a mercapto-based silane coupling agent; a liquid rubber; and a resin.SELECTED DRAWING: None
【課題】低燃費性、ウェットグリップ性能、破壊特性および加工性をバランスよく総合的に向上できるタイヤトレッド用ゴム組成物、該ゴム組成物からなるタイヤトレッド、および該タイヤトレッドを備えた乗用車用タイヤを提供すること。【解決手段】イソプレン系ゴムとスチレンブタジエンゴムとを含むゴム成分と、シリカ20質量%以上かつカーボンブラック20質量%以上を含む充填剤と、メルカプト系シランカップリング剤と、液状ゴムと、樹脂とを含む、タイヤトレッド用ゴム組成物。【選択図】なし
RUBBER COMPOSITION FOR TIRE TREAD, TIRE TREAD, AND PASSENGER CAR TIRE
タイヤトレッド用ゴム組成物、タイヤトレッドおよび乗用車用タイヤ
2021-09-24
Patent
Electronic Resource
Japanese
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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