Title:
POLYMER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2024/090556
Kind Code:
A1
Abstract:
A polymer composition comprising a first polymer, which comprises aromatic vinyl units and butadiene units and satisfies requirements (x) and (y), and a second polymer, which comprises aromatic vinyl units and butadiene units, satisfies requirements (x) and (y), and has a lower aromatic-vinyl-unit content than the first polymer, wherein the difference in β between the first polymer and the second polymer is 0.10 or less and the difference in aromatic-vinyl-unit content between the first polymer and the second polymer is 10-30 mass%. Requirement (x): α is 0.60-0.97 inclusive. Requirement (y): β is 0.10-0.40 inclusive. (i) α=(p+(0.5×r))/(p+q+(0.5×r)+s)
(ii) β=(p+q)/(p+q+(0.5×r)+s)
Inventors:
SANO TAKUYA (JP)
SENGA HIROFUMI (JP)
NAKAHAMA TATSUMOTO (JP)
FUKUMOTO TAKATO (JP)
ONO NORIYOSHI (JP)
SENGA HIROFUMI (JP)
NAKAHAMA TATSUMOTO (JP)
FUKUMOTO TAKATO (JP)
ONO NORIYOSHI (JP)
Application Number:
PCT/JP2023/038891
Publication Date:
May 02, 2024
Filing Date:
October 27, 2023
Export Citation:
Assignee:
ENEOS MAT CORPORATION (JP)
International Classes:
C08L9/06; B60C1/00; C08F212/02; C08F236/06; C08K3/013; C08K5/54; C08L7/00; C08L15/00; C08L91/00; C08L101/00
Domestic Patent References:
| WO2021206068A1 | 2021-10-14 |
Foreign References:
| JP2022030649A | 2022-02-18 | |||
| JP2022028234A | 2022-02-16 | |||
| JP2020045388A | 2020-03-26 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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