Rubber composition and tire

JP2025086859APending Publication Date: 2025-06-09BRIDGESTONE CORP
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Patent Information

Application Number
JP2024146958
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-28
Filing Date
2024-08-28
Publication Date
2025-06-09

AI Technical Summary

Benefits of technology

【0015】 本発明によれば、破壊強度及びサステナブル材料の比率が向上したゴム組成物を提供することができる。 また、本発明によれば、破壊強度及びサステナブル材料の比率が向上したタイヤを提供することもできる。

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Abstract

To provide a rubber composition which has improved breaking strength and a ratio of a sustainable material.SOLUTION: A rubber composition contains a rubber component containing a diene-based rubber and a polar rubber, and at least one resin selected from the group consisting of a terpene resin, a terpene-phenol resin, a rosin and a rosin derivative.SELECTED DRAWING: None
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Claims

1. a rubber component containing a diene rubber and a polar rubber; At least one resin selected from the group consisting of terpene-based resins and rosin-based resins; A rubber composition comprising:

2. The diene rubber has an SP value of 7.8 (cal / cm ３ ) １／２ Above, 8.7 (cal / cm ３ ) １／２ The rubber composition according to claim 1 , wherein the modulus is less than 1.

3. The SP value of the polar rubber is 8.7 to 10.5 (cal / cm ３ ) １／２ The rubber composition according to claim 1 or 2, characterized in that

4. 3. The rubber composition according to claim 1, wherein the resin is at least one selected from the group consisting of a terpene resin, a terpene-phenol resin, a rosin, and a rosin derivative.

5. The rubber composition according to claim 1 or 2, further comprising a filler containing recycled carbon black.

6. The rubber composition according to claim 1 or 2, further comprising sulfur and / or a peroxide as a crosslinking agent.

7. A tire comprising the rubber composition according to claim 1 or 2.

Citation Information

Patent Citations

  • Rubber composition and pneumatic tire

    JP2004359716A

  • Modified natural rubber and method for producing the same

    JP2004359717A

Cited By

  • Adhesive composition, cured product, and assembly

    US20220251431A1