Title:
COATING RUBBER COMPOSITION FOR TIRE-REINFORCING MATERIAL, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2023/095493
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a coating rubber composition for a tire-reinforcing material, which exhibits excellent resistance to thermal degradation. In order to solve the foregoing, this coating rubber composition for a tire-reinforcing material is characterized by containing a rubber component, carbon black, a cobalt compound, and an amine-based anti-aging agent, and characterized in that the rubber component contains 60-100 mass% of an isoprene skeleton type rubber, that the content of the cobalt compound is 0.21-0.6 parts by mass in terms of cobalt relative to 100 parts by mass of the rubber component, that the amine-based anti-aging agent is represented by general formula (1): [in the formula, R1 and R2 each independently denote a monovalent saturated hydrocarbon group], and that the content of the amine-based anti-aging agent is 0.1 parts by mass or more relative to 100 parts by mass of the rubber component.
Inventors:
SAITO JUNKO (JP)
HIDAKA HITOMI (JP)
HIDAKA HITOMI (JP)
Application Number:
PCT/JP2022/038825
Publication Date:
June 01, 2023
Filing Date:
October 18, 2022
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L7/00; B60C1/00; C08K3/04; C08K3/11; C08K5/09; C08K5/18; C08L9/00; C08L101/00
Domestic Patent References:
| WO2020059673A1 | 2020-03-26 |
Foreign References:
| JP2020045408A | 2020-03-26 | |||
| JPS612543A | 1986-01-08 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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