Title:
POLYMER COMPOSITION AND METHOD FOR PRODUCING SAME, CROSSLINKED PRODUCT, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2023/171627
Kind Code:
A1
Abstract:
Provided is a polymer composition containing: (A) a conjugated diene polymer that has a random copolymer part of a structural unit derived from a conjugated diene compound and a structural unit derived from an aromatic vinyl compound, and that does not have a block comprising a structural unit derived from an aromatic vinyl compound, the value α of the conjugated dinen polymer, as represented by mathematical expression (i), is 0.60-0.98 where the composition ratios (molar ratios) 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. 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/JP2023/008378
Publication Date:
September 14, 2023
Filing Date:
March 06, 2023
Export Citation:
Assignee:
ENEOS MAT CORPORATION (JP)
International Classes:
C08L15/00; B60C1/00; C08C19/02; C08C19/25; C08K3/013; C08K5/13; C08K5/36; C08K5/49; C08L9/06
Foreign References:
JP2022028238A | 2022-02-16 | |||
JP2000053706A | 2000-02-22 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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