To provide a rubber composition having excellent releasability, and a pneumatic tire and a vulcanization bladder made using the rubber composition.SOLUTION: A rubber composition has a rubber component containing diene rubber, and a magnesium oxide with an apparent specific gravity of less than 0.4 g/ml, and a particle size of integrated value 50% in a mass-based particle size distribution curve of less than 10 μm. In the rubber component 100 mass%, the content of the diene rubber is 70 mass% or more.SELECTED DRAWING: None
【課題】離型性に優れたゴム組成物、並びに、該ゴム組成物を用いて作製した空気入りタイヤ及び加硫ブラダーを提供する。【解決手段】ジエン系ゴムを含むゴム成分と、見かけ比重が0.4g/ml未満、質量基準の粒度分布曲線における積算値50%の粒子径が10μm未満の酸化マグネシウムとを含有し、上記ゴム成分100質量%中、上記ジエン系ゴムの含有量が70質量%以上であるゴム組成物に関する。【選択図】なし
RUBBER COMPOSITION, PNEUMATIC TIRE AND VULCANIZATION BLADDER
ゴム組成物、空気入りタイヤ及び加硫ブラダー
2020-01-30
Patent
Electronic Resource
Japanese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / 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, VULCANIZATION BLADDER, AND PNEUMATIC TIRE
European Patent Office | 2020
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