To provide a rubber composition having good low fuel consumption performance and rubber strength while maintaining a good appearance, and a pneumatic tire using the same.SOLUTION: The rubber composition contains a rubber component containing a diene rubber, a reinforcing filler, and a plant-derived glycerol fatty acid triester. An isoprene rubber is contained as the diene rubber. In the glycerol fatty acid triester, the content of a saturated fatty acid is 10-25 mass% and the content of a monovalent unsaturated fatty acid having one unsaturated bond is less than 50 mass% in 100 mass% of constituent fatty acids. The reinforcing filler is contained in an amount of 50 pts.mass or less based on 100 pts.mass of the rubber component.SELECTED DRAWING: None
【課題】良好な外観を維持しつつ、良好な低燃費性能、ゴム強度を有するゴム組成物、及びこれを用いた空気入りタイヤを提供する。【解決手段】ジエン系ゴムを含むゴム成分と、補強性充填剤と、植物由来のグリセロール脂肪酸トリエステルとを含有し、前記ジエン系ゴムとしてイソプレン系ゴムを含み、前記グリセロール脂肪酸トリエステルが、構成脂肪酸100質量%中の、飽和脂肪酸の含有量が10〜25質量%、不飽和結合を1個有する1価不飽和脂肪酸の含有量が50質量%未満であり、ゴム成分100質量部に対して、前記補強性充填剤を50質量部以下含有するゴム組成物。【選択図】なし
RUBBER COMPOSITION AND PNEUMATIC TIRE
ゴム組成物及び空気入りタイヤ
2019-02-21
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 |