To provide a tire tread and a tire improved in high balance of wet grip performance, low rolling resistance, and wear resistance, and to provide a rubber composition for tires from which the tire tread and the tire can be obtained.SOLUTION: The rubber composition for tires contains a polymer component which contains a styrenic diene polymer B modified with a modifier containing a compound represented by formula (1) and a styrenic polymer A having a bound styrene content of 30 mass% or more. [In the formula (1), R1-R8 each independently represent a C1-20 alkyl group; L1 and L2 each independently represent a C1-20 alkylene group; and n represents an integer of 2-4.]SELECTED DRAWING: None
【課題】ウェットグリップ性能、低転がり抵抗性、及び耐摩耗性の高度なバランスを向上したタイヤトレッド及びタイヤ、並びに該タイヤトレッド及び該タイヤが得られるタイヤ用ゴム組成物を提供する。【解決手段】式(1)で表される化合物を含む変性剤によって変性されたスチレン系ジエン系ポリマーBと、結合スチレン量が30質量%以上であるスチレン系ポリマーAとを含むポリマー成分を含むタイヤ用ゴム組成物。JPEG2022182832000018.jpg4982〔式(1)中、R1~R8は、それぞれ独立して、炭素数1~20のアルキル基;L1及びL2は、それぞれ独立して、炭素数1~20のアルキレン基;nは2~4の整数。〕【選択図】なし
RUBBER COMPOSITION FOR TIRES, TIRE TREAD, AND TIRE
タイヤ用ゴム組成物、タイヤトレッド及びタイヤ
2022-12-08
Patent
Electronic Resource
Japanese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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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