To provide a rubber composition for tires capable of improving tackiness, breaking strength, and wet grip performance during tire molding.SOLUTION: A rubber composition for tires is a hydrogenated copolymer obtained by hydrogenating an aromatic vinyl-conjugate diene copolymer characterized in that a weight average molecular weight measured by gel permeation chromatography is 300,000 or larger, and a rubber composition contains a hydrogenated copolymer having a hydrogenation rate of the conjugate diene part of 80 mol% or larger, and a resin has a softening point higher than 120°C.SELECTED DRAWING: None
【課題】タイヤ成形時のタッキネス、破断強度、及びウエットグリップ性能を向上させることができる、タイヤ用ゴム組成物を提供する。【解決手段】芳香族ビニル−共役ジエン共重合体が水素添加された水添共重合体であって、ゲル浸透クロマトグラフィーにより測定された重量平均分子量が30万以上であり、共役ジエン部の水素添加率が80モル%以上である水添共重合体を含むゴム成分と、軟化点が120℃より高い樹脂を含有する、タイヤ用ゴム組成物とする。【選択図】なし
RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE THEREWITH
タイヤ用ゴム組成物、及びそれを用いた空気入りタイヤ
2020-07-09
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 |
TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE PREPARED THEREWITH
European Patent Office | 2019
|RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE THEREWITH
European Patent Office | 2020
|TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE PREPARED THEREWITH
European Patent Office | 2019
|TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE PREPARED THEREWITH
European Patent Office | 2019
|TIRE RUBBER COMPOSITION, AND PNEUMATIC TIRE PREPARED THEREWITH
European Patent Office | 2019
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