Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2022/195978
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rubber composition capable of improving the low-loss characteristics and steering stability of tires. The rubber composition comprises a rubber component, a hydrogenated resin, and a filler, and is characterized in that the rubber component comprises a modified conjugated-diene-based polymer which is a product of reaction between a conjugated-diene-based polymer having an active terminal and a compound [M] having, in total, two or more groups selected from among -CR1=N-A1 groups and -N=CR1-A1 groups (R1 is a hydrogen atom or a hydrocarbyl group and A1 is a monovalent group having an alkoxysilyl group), the hydrogenated resin has a softening point higher than 110°C and a weight-average molecular weight of 200-1200 g/mol in terms of polystyrene, and the filler comprises silica.
Inventors:
SONE RYOTA (JP)
Application Number:
PCT/JP2021/044785
Publication Date:
September 22, 2022
Filing Date:
December 06, 2021
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; C08C19/25; C08F36/14; C08K3/00; C08L9/00; C08L101/00
Domestic Patent References:
| WO2017221943A1 | 2017-12-28 | |||
| WO2019235075A1 | 2019-12-12 | |||
| WO2017014283A1 | 2017-01-26 | |||
| WO2020196899A1 | 2020-10-01 | |||
| WO2020255823A1 | 2020-12-24 | |||
| WO2021020189A1 | 2021-02-04 | |||
| WO2021039985A1 | 2021-03-04 | |||
| WO2017221943A1 | 2017-12-28 | |||
| WO2018056382A1 | 2018-03-29 |
Foreign References:
| JP2011088988A | 2011-05-06 | |||
| JP2014214297A | 2014-11-17 | |||
| JP2017149897A | 2017-08-31 | |||
| JP2019524736A | 2019-09-05 | |||
| JP2021120448A | 2021-08-19 | |||
| JP2021165356A | 2021-10-14 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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