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US 12,479,980 B2Granted
Rubber composition and tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorHayato Yoshiyasu
Life of this patent
Estimating the term…
Abstract
A rubber composition that includes a rubber component, an inorganic fiber material, and a coupling agent. The inorganic fiber material is one or more inorganic fiber materials selected from the group consisting of a magnesium sulfate fiber, a calcium silicate fiber, a potassium titanate fiber, an aluminum borate fiber, and a glass fiber.
Claims8
A tire comprising a tire internal member formed of a rubber composition comprising
- a rubber component,
- an inorganic fiber material,
- a carbon black, and
- a coupling agent,
- wherein the inorganic fiber material is one or more inorganic fiber materials selected from the group consisting of a magnesium sulfate fiber, a calcium silicate fiber, and an aluminum borate fiber, and wherein a grain direction of the inorganic fiber is arranged along a tire circumferential direction;
- wherein the rubber composition comprises 1 to 40 parts by mass of the coupling agent based on 100 parts by mass of the rubber component, and
- wherein a ratio of 100% modulus in a grain direction M100a to 100% modulus in a cross-grain direction M100b (M100a/M100b) is 1.10 or more.
4 more elements
Dependencies are inferred from the claim text.