| 摘要 |
PROBLEM TO BE SOLVED: To suppress deterioration in excellent on-ice performance that is thanks to porous cellulose particles by preventing increase of rubber hardness with time.SOLUTION: A rubber composition for a tire is provided that contains, based on 100 pts.mass of a rubber component composed of a diene rubber, 0.3 to 20 pts.mass of porous cellulose particles having a porosity of 75 to 95% and 1 to 30 pts.mass of a polymer gel which is a crosslinked diene-based polymer particle and has a functional group containing a hetero atom. A pneumatic tire having a tread composed of the rubber composition is also provided.SELECTED DRAWING: None |
