A rubber composition which contains carbon black, wherein the carbon black satisfies the following requirements: the 90-vol % particle diameter (D90) is 35 μm or smaller; and the degree of particle surface ruggedness expressed by the ratio of the area (μm2) (A) of a projected image of a carbon black particle to the area (μm2) (B) of a contour formed by surrounding the projected image of the carbon black particle by one line having a minimum length, (A)/(B), is 0.9 or less. The rubber composition of the present invention gives a vulcanized rubber having low heat build-up properties.
RUBBER COMPOSITION, PNEUMATIC TIRE, METHOD FOR PRODUCING RUBBER WET MASTERBATCH, AND METHOD FOR PRODUCING RUBBER COMPOSITION
2020-12-17
Patent
Electronic Resource
English
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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