RUBBER COMPOSITION AND METHOD OF PRODUCING THE SAME, AND PNEUMATIC TIRE

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition that can improve appearance by preventing the color of a rubber surface from changing due to an amine-based antioxidant, and can maintain thermal deterioration resistance for a long period of time.

SOLUTION: The rubber composition is prepared by: combining the amine-based antioxidant and an inorganic particle at temperature lower than a melting point of the amine-based age inhibitor, thereby producing a composite body in which the inorganic particles are carried on a particle surface of the amine-based antioxidant to cover the particle surface; and adding the composite body to a rubber component consisting of a diene rubber for kneading.

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