To prevent the opening of a joint portion of an inner liner during tire forming while improving air permeability resistance and flexural fatigue resistance at low temperatures.SOLUTION: A rubber composition for a tire inner liner according to an embodiment contains a rubber component containing halogenated butyl rubber, carbon black, pulverized bituminous coal, and aliphatic/aromatic copolymer petroleum resin. A pneumatic tire according to the embodiment includes an inner liner formed of the rubber composition for a tire inner liner.SELECTED DRAWING: None
【課題】耐空気透過性と低温での耐屈曲疲労性の向上しながら、タイヤ成型時におけるインナーライナーのジョイント部の口開きを抑制する。【解決手段】実施形態に係るタイヤインナーライナー用ゴム組成物は、ハロゲン化ブチルゴムを含むゴム成分と、カーボンブラックと、瀝青炭粉砕物と、脂肪族/芳香族共重合系石油樹脂と、を含む。実施形態に係る空気入りタイヤは、該タイヤインナーライナー用ゴム組成物からなるインナーライナーを備える。【選択図】なし
RUBBER COMPOSITION FOR TIRE INNER LINER AND PNEUMATIC TIRE
タイヤインナーライナー用ゴム組成物及び空気入りタイヤ
2021-07-15
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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