To provide a rubber composition of which blowout resistance, grip performance, grip stability performance are improved in good balance, and a pneumatic tire.SOLUTION: There is provided a rubber composition containing a rubber component, a nitrogen compound having one or more cyclic structure containing nitrogen of 0.5 to 5 pts.mass based on 100 pts.mass of the rubber component, and fine particle zinc oxide having an average primary particle diameter of 200 nm or less, and satisfying following formula (I), wherein A is content of the nitrogen compound based on 100 pts.mass of the rubber component and B is content of zinc oxide based on 100 pts.mass of the rubber component. 1.0≤A/B≤5.0 Formula (I).SELECTED DRAWING: None
【課題】耐ブローアウト性能、グリップ性能、グリップ安定性能がバランスよく改善されたゴム組成物及び空気入りタイヤを提供する。【解決手段】ゴム成分と、ゴム成分100質量部に対して、窒素を含む環状構造を1つ以上有する窒素化合物を0.5〜5質量部と、平均一次粒子径200nm以下の微粒子酸化亜鉛とを含み、ゴム成分100質量部に対する前記窒素化合物の含有量をA、ゴム成分100質量部に対する酸化亜鉛の含有量をBとした時に、下記式(I)を満たすゴム組成物。1.0 ≦ A/B ≦ 5.0 式(I)【選択図】なし
RUBBER COMPOSITION AND PNEUMATIC TIRE
ゴム組成物及び空気入りタイヤ
2020-05-21
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, RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE
European Patent Office | 2016
|