Title:
COATING RUBBER COMPOSITION FOR REINFORCEMENT MATERIAL FOR TIRES, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2023/095494
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a coating rubber composition for reinforcement materials for tires, the coating rubber composition having excellent thermal deterioration resistance and excellent cracking resistance after thermal deterioration. A means for solving the problem according to the present invention is a coating rubber composition for reinforcement materials for tires, the coating rubber composition being characterized by containing a rubber component, carbon black, a cobalt compound and an amine-based anti-aging agent, while being also characterized in that: the rubber component contains 60% by mass to 100% by mass of an isoprene skeleton rubber; the content of the cobalt compound in terms of cobalt is 0.01 part by mass or more relative to 100 parts by mass of the rubber component; the amine-based anti-aging agent is represented by general formula (1) (wherein each of R1 and R2 independently represents a monovalent saturated hydrocarbon group); and the content of the amine-based anti-aging agent is 0.1 part by mass to 0.9 part by mass relative to 100 parts by mass of the rubber component.
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Inventors:
HIDAKA HITOMI (JP)
Application Number:
PCT/JP2022/038826
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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