Title:
RUBBER COMPOSITION, METHOD FOR PRODUCING SAME, AND TIRE PRODUCT
Document Type and Number:
WIPO Patent Application WO/2024/038878
Kind Code:
A1
Abstract:
[Problem] To provide a rubber composition which enables a tire to have excellent wear resistance, wet grip performance and on-ice performance. [Solution] A rubber composition according to the present invention is characterized by containing a rubber component and an additive for rubbers, the additive containing a sulfur-containing hydrocarbon polymer, and is also characterized in that: the rubber component contains an isoprene rubber; the sulfur-containing hydrocarbon polymer is a reaction product of an unsaturated hydrocarbon and sulfur; the hydrocarbon contains an alicyclic unsaturated compound; the weight average molecular weight of the sulfur-containing hydrocarbon polymer is 500 to 4,000; and the type A rubber hardness of a cured product of the rubber composition at a temperature of 0°C as specified in ISO is 30 to 55.
Inventors:
AKIYAMA YOICHI (JP)
ASHIURA MAKOTO (JP)
MATSUO YUSUKE (JP)
ASHIURA MAKOTO (JP)
MATSUO YUSUKE (JP)
Application Number:
PCT/JP2023/029620
Publication Date:
February 22, 2024
Filing Date:
August 16, 2023
Export Citation:
Assignee:
ENEOS CORP (JP)
International Classes:
C08L7/00; B60C1/00; C08K3/013; C08L9/00; C08L57/06
Domestic Patent References:
| WO2018189878A1 | 2018-10-18 | |||
| WO2023032664A1 | 2023-03-09 |
Foreign References:
| JP2021031568A | 2021-03-01 | |||
| JP2018187960A | 2018-11-29 | |||
| JPS5033A | 1975-01-06 | |||
| JPS63301244A | 1988-12-08 |
Attorney, Agent or Firm:
SORIMACHI Hiroshi et al. (JP)
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