Title:
POLYMER COMPOSITION AND METHOD FOR PRODUCING SAME, CROSSLINKED PRODUCT, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2023/171628
Kind Code:
A1
Abstract:
Provided is a polymer composition containing: (A) a conjugated diene polymer having a structural unit derived from a conjugated diene compound and a structural unit derived from an aromatic vinyl compound, the value α of the conjugated diene polymer, as represented by mathematical expression (i), is 0.60-0.98, where the composition ratio (molar ratio) in the polymer of the structural units represented by formulas (1), (2), (3) and (4) are p, q, r, s respectively; and (B) a hindered phenol compound having a molecular weight of 250-2000. A portion or all of the component (A) has a functional group including at least one element selected from the group consisting of nitrogen, oxygen, sulfur, and phosphorous. α = (p + (0.5 × r)) / (p + q + (0.5 × r) + s) ... (i)
Inventors:
KIKUCHI TOSHIMITSU (JP)
SENGA HIROFUMI (JP)
NAKAHAMA TATSUMOTO (JP)
FUKUMOTO TAKATO (JP)
SANO TAKUYA (JP)
HAYAKAWA TOSHIYUKI (JP)
SENGA HIROFUMI (JP)
NAKAHAMA TATSUMOTO (JP)
FUKUMOTO TAKATO (JP)
SANO TAKUYA (JP)
HAYAKAWA TOSHIYUKI (JP)
Application Number:
PCT/JP2023/008379
Publication Date:
September 14, 2023
Filing Date:
March 06, 2023
Export Citation:
Assignee:
ENEOS MAT CORPORATION (JP)
International Classes:
C08L15/00; B60C1/00; C08C19/25; C08K3/013; C08K5/13; C08K5/36; C08K5/49
Domestic Patent References:
| WO2014126184A1 | 2014-08-21 |
Foreign References:
| JP2022028238A | 2022-02-16 | |||
| JP2006299280A | 2006-11-02 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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