To provide: a rubber composition which enables production of crosslinked rubber having a high dynamic storage elastic modulus; crosslinked rubber for tire and a tire having high dynamic storage elastic moduli and a rubber composition for a tire which enables production of the same; and a tire tread having a high dynamic storage elastic modulus and a rubber composition for a tire tread which enables production of the same.SOLUTION: A rubber composition for a tire contains a rubber component containing diene-based rubber, a crosslinking agent, a benzoic acid derivative having one or two methoxy groups and has at least the methoxy group at a para position with respect to a carboxy group, and 20-120 pts.mass of a filler with respect to 100 pts.mass of the rubber component. A content of at least one selected from a thermosetting resin, an imidazole compound and a methylene acceptor is 0-0.1 pts.mass with respect to 100 pts.mass of the rubber component.SELECTED DRAWING: None
【課題】高い動的貯蔵弾性率を有する架橋ゴムを製造可能なゴム組成物;高い動的貯蔵弾性率を有するタイヤ用架橋ゴム及びタイヤ、並びにこれらを製造可能なタイヤ用ゴム組成物;ならびに、高い動的貯蔵弾性率を有するタイヤトレッド及びこれを製造可能なタイヤトレッド用ゴム組成物を提供する。【解決手段】ジエン系ゴムを含むゴム成分と、架橋剤と、1つ又は2つのメトキシ基を有し、カルボキシ基に対してパラ位に少なくとも前記メトキシ基を有する安息香酸誘導体と、ゴム成分100質量部に対して20〜120質量部の充填材とを含み、熱硬化性樹脂、イミダゾール化合物、及びメチレンアクセプターから選択される少なくとも1種の含有量が、前記ゴム成分100質量部に対して0〜0.1質量部であるタイヤ用ゴム組成物【選択図】なし
RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE, RUBBER COMPOSITION FOR TIRE TREAD, CROSSLINKED RUBBER FOR TIRE, TIRE TREAD, AND TIRE
ゴム組成物、タイヤ用ゴム組成物、タイヤトレッド用ゴム組成物、タイヤ用架橋ゴム、タイヤトレッド及びタイヤ
2021-12-27
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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