Rubber composition and tire produced by using the same

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United States of America Patent

PATENT NO 9765202
SERIAL NO

14648838

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Abstract

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Rubber composition which improves dispersibility of silica and enhances processability by reducing viscosity of an unvulcanized rubber and which suppresses rubber scorching, inhibits shrinkage without delaying a vulcanization rate and improves a heat resistance, and a tire prepared by using the above rubber composition. Rubber composition prepared by blending at least one rubber component selected from a natural rubber and/or a diene base synthetic rubber with silica and a glycerin fatty acid ester composition, wherein a blend amount of the glycerin fatty acid ester composition is 0.5 to 15 parts by mass based on 100 parts by mass of the rubber component; the fatty acid has 8 to 28 carbon atoms; the glycerin fatty acid ester composition contains glycerin fatty acid monoester and glycerin fatty acid diester; and a content of the glycerin fatty acid monoester in the glycerin fatty acid ester composition is 85% by mass or less.

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Patent Owner(s)

  • BRIDGESTONE CORPORATION;KAO CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takano, Tetsuo Wakayama, JP 32 526
Tsuchihashi, Masaaki Wakayama, JP 22 177
Yonemoto, Makiko Chuo-ku, JP 10 23

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