Title:
ゴム組成物、及びタイヤ
Document Type and Number:
Japanese Patent JP7356390
Kind Code:
B2
Abstract:
To provide a rubber composition that has an extremely excellent processability when making into a vulcanized product, has a particularly excellent wear resistance and steering stability when made into a vulcanized product, has an excellent low hysteresis loss property and has a sufficient breaking strength for practical use.SOLUTION: Provided is a rubber composition containing 100 pts.mass of a rubber component and 30 to 150 pts.mass of a silica having a nitrogen adsorption specific surface area of 180 m2/g or more, the rubber component containing a conjugated diene-based polymer by 10 mass% or more, and the conjugated diene polymer having a Mooney viscosity measured at 100°C of 40 or more and 170 or less, the Mooney relaxation rate measured at 100°C of 0.35 or less, and the Branch degree (Bn) by GPC with viscosity detector-light scattering measurement method of 8 or more.SELECTED DRAWING: None
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Inventors:
Shogo Kakutani
Kenta Kumura
Shinichi Sekikawa
Yoshifumi Araki
Kenta Kumura
Shinichi Sekikawa
Yoshifumi Araki
Application Number:
JP2020058317A
Publication Date:
October 04, 2023
Filing Date:
March 27, 2020
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08L9/00; B60C1/00; C08F236/04; C08K3/36
Domestic Patent References:
| JP2013231119A | ||||
| JP2017014339A | ||||
| JP2020012101A | ||||
| JP2016151017A | ||||
| JP2018177894A |
Foreign References:
| WO2018186367A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito