Title:
ゴム組成物及び空気入りタイヤ
Document Type and Number:
Japanese Patent JP7224149
Kind Code:
B2
Abstract:
The purpose is to provide rubber compositions and pneumatic tires which have reduced changes in tan δ over time. The present invention relates to rubber compositions containing at least one copolymer obtained by copolymerizing an aromatic vinyl compound and a conjugated diene compound, the rubber compositions having a heat aging resistance index defined by equation (1) of 2.0 or less.
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Inventors:
Ryota Kitago
Rie Yasuda
Shogo Hirao
Rie Yasuda
Shogo Hirao
Application Number:
JP2018212212A
Publication Date:
February 17, 2023
Filing Date:
November 12, 2018
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
C08L9/06; B60C1/00; C08K3/04; C08K3/36; C08L15/00
Domestic Patent References:
| JP201895776A | ||||
| JP2012224835A | ||||
| JP2013177539A |
Foreign References:
| WO2018110409A1 | ||||
| WO2018110414A1 | ||||
| WO2018110412A1 | ||||
| WO1996005250A1 |
Attorney, Agent or Firm:
Patent Attorney Firm WisePlus