| 摘要 |
The present invention provides a rubber composition for a bead, which has excellent processability and is capable of decreasing heat generation while maintaining rubber hardness, and a pneumatic tire having improved balance in fuel efficiency and steering stability. Specifically, the present invention provides a rubber composition for a tire bead comprising (B) 10 to 100 parts by weight of carbon black having nitrogen-adsorbing specific surface area of 30 to 100 m2/g and dibutyl phthalate adsorption of 40 to 200 ml/100 g, and (C) 5 to 120 parts by weight of a think plate-like natural mineral having aspect ratio of 3 to 30 and average particle size of 2 to 30 μm, based on (A) 100 parts by weight of a rubber component. |
