Rubber composition for tire and tire
AssigneeBridgestone Corporation
InventorKosuke SAITO
Life of this patent
Estimating the term…
Abstract
Provided is a rubber composition for a tire having excellent ozone resistance and high retention rates of elongation at break (EB) and tensile strength (TB) after aging. The rubber composition for a tire contains a rubber component, an amine age resistor represented by a specific general formula (1), and a quinoline age resistor. The content of the amine age resistor is 0.1 parts by mass to 11 parts by mass relative to 100 parts by mass of the rubber component, and the content of the quinoline age resistor is 0.1 parts by mass to 0.95 parts by mass relative to 100 parts by mass of the rubber component.
Claims20
A rubber composition for a tire comprising:
- a rubber component;
- an amine age resistor represented by general formula (1), shown below,
- where, in general formula (1), R1 and R2 are each independently a monovalent saturated hydrocarbon group;
- and
- a quinoline age resistor, wherein
- content of the amine age resistor is 0.1 parts by mass to 11 parts by mass relative to 100 parts by mass of the rubber component, and
- content of the quinoline age resistor is 0.1 parts by mass to 0.95 parts by mass relative to 100 parts by mass of the rubber component.
Dependencies are inferred from the claim text.