Title:
POLYMER COMPOSITION, CROSSLINKED POLYMER AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/049377
Kind Code:
A1
Abstract:
The present invention provides a polymer composition which has good processability and is suitable for the production of a tire that has an excellent balance among rebound resilience, wet grip performance, low loss tangent and tensile strength at high levels. A polymer composition according to the present invention contains: (A) a conjugated diene polymer that is a reaction product of a compound represented by one of general formulae (1) to (3) and a polymer which is obtained by polymerizing a conjugated diene compound or a conjugated diene compound and an aromatic vinyl compound in the presence of an alkali metal compound or an alkaline earth metal compound, and which has an active polymerization end; and (B) conjugated diene polymer particles.
Inventors:
SHIN KANYOU (JP)
Application Number:
PCT/JP2020/033111
Publication Date:
March 18, 2021
Filing Date:
September 01, 2020
Export Citation:
Assignee:
JSR CORP (JP)
International Classes:
B60C1/00; C08L15/00; C08C19/25; C08F12/02; C08F36/04; C08L9/00
Domestic Patent References:
WO2012111640A1 | 2012-08-23 | |||
WO2017221943A1 | 2017-12-28 | |||
WO2013031599A1 | 2013-03-07 |
Foreign References:
JP2018095777A | 2018-06-21 | |||
JP2019089911A | 2019-06-13 | |||
JP2013108036A | 2013-06-06 | |||
JP2018507302A | 2018-03-15 | |||
JP2019131810A | 2019-08-08 |
Other References:
See also references of EP 4029911A4
Attorney, Agent or Firm:
OFUCHI, Michie et al. (JP)
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