To provide a pneumatic tire having improved crack resistance and cut resistance while holding low heat build-up properties.SOLUTION: A pneumatic tire has a groove formed on a tread part. On a tread rubber surface layer including the bottom of the groove, a surface layer rubber is disposed. A rubber composition contains a multi-component copolymer of 10-30 mass% in the rubber component, the multi-component copolymer having a conjugated diene unit, a non-conjugated olefin unit, and an aromatic vinyl unit, the rubber composition used in the surface layer rubber.SELECTED DRAWING: None
【課題】低発熱性が保持されつつ、耐クラック性及び耐カット性が向上した空気入りタイヤを提供する。【解決手段】トレッド部に溝が形成されている空気入りタイヤであって、前記溝の底部を含むトレッドゴム表層に、表層ゴムが配置されており、共役ジエン単位と、非共役オレフィン単位と、芳香族ビニル単位とを有する多元共重合体をゴム成分中10〜30質量%の割合で含有するゴム組成物を、前記表層ゴムに用いたことを特徴とする、空気入りタイヤ。【選択図】なし
PNEUMATIC TIRE
空気入りタイヤ
2020-04-02
Patent
Elektronische Ressource
Japanisch
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 |
PNEUMATIC TIRE INNER LINER, PNEUMATIC TIRE, AND PNEUMATIC TIRE PRODUCTION METHOD
Europäisches Patentamt | 2017
|PNEUMATIC TIRE INNER LINER, PNEUMATIC TIRE, AND PNEUMATIC TIRE PRODUCTION METHOD
Europäisches Patentamt | 2017
|