Rubber composition for tires, and tire
AssigneeBridgestone Corporation
InventorKosuke SAITO
Life of this patent
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Abstract
The present disclosure provides a rubber composition for tires with excellent ozone resistance and high retention rates of elongation at break (EB) and tensile strength (TB) after aging. The rubber composition includes a rubber component, an amine-based antioxidant represented by the following general formula (1): where R1 and R2 are each independently a monovalent saturated hydrocarbon group, and a quinoline-based antioxidant. The content of the amine-based antioxidant is 0.1 to 11 parts by mass per 100 parts by mass of the rubber component, and the content of the quinoline-based antioxidant is 1.75 to 2.5 parts by mass per 100 parts by mass of the rubber component.
Claims20
A rubber composition for tires comprising:
- a rubber component;
- an amine-based antioxidant represented by the following general formula (1):
- where R1 and R2 are each independently a monovalent saturated hydrocarbon group;
- and
- a quinoline-based antioxidant,
- wherein a content of the amine-based antioxidant is 0.1 to 11 parts by mass per 100 parts by mass of the rubber component, and
- a content of the quinoline-based antioxidant is 1.75 to 2.5 parts by mass per 100 parts by mass of the rubber component.
Dependencies are inferred from the claim text.