| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a tire in which dispersibility of carbon black and/or silica is enhanced to improve steering stability and fuel economy performance of a pneumatic tire, and which achieves high rigidity, high strength, and a low heat emission property, and to provide a pneumatic tire produced using the composition.SOLUTION: A rubber composition for a tire contains 5 to 100 pts.mass of carbon black and/or silica, and 0.5 to 10 pts.mass of a sodium salt solution of phosphoric acid (the amount "0.5 to 10 pts.mass" is based on the mass of a phosphoric-acid sodium salt before dissolution in a solution) with respect to 100 pts.mass of a diene rubber. The above object has been achieved by providing such a rubber composition for a tire and a pneumatic tire produced using the same. |
