To provide a rubber composition for tire inner members that can achieve overall improvement in the performances of fuel economy and durability and a tire.SOLUTION: A rubber composition for tire inner members has: a rubber component containing isoprene rubber; and a filler containing carbon black with an amount of absorption of dibutyl phthalate of 100 ml/100 g or more. Relative to the rubber component 100 pts.mass, the content of the filler is 35-55 pts.mass. In the filler 100 mass%, the content of the carbon black is 70 mass% or more.SELECTED DRAWING: None
【課題】低燃費性及び耐久性の総合性能を改善できるタイヤ内層部材用ゴム組成物及びタイヤを提供する。【解決手段】イソプレン系ゴムを含むゴム成分と、ジブチルフタレート吸油量が100ml/100g以上のカーボンブラックを含む充填剤とを含有し、前記ゴム成分100質量部に対する前記充填剤の含有量が35~55質量部であり、前記充填剤100質量%中、前記カーボンブラックの含有量が70質量%以上であるタイヤ内層部材用ゴム組成物に関する。【選択図】なし
RUBBER COMPOSITION FOR TIRE INNER MEMBERS AND TIRE
タイヤ内層部材用ゴム組成物及びタイヤ
2022-03-04
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 |
RUBBER COMPOSITION FOR TIRE INNER LINER OR TIRE TUBE, TIRE INNER LINER, TIRE TUBE AND PNEUMATIC TIRE
European Patent Office | 2020
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