Title:
CONJUGATED-DIENE-BASED POLYMER, BRANCHING AGENT, METHOD FOR PRODUCING CONJUGATED-DIENE-BASED POLYMER, OIL-EXTENDED CONJUGATED-DIENE-BASED POLYMER, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/024811
Kind Code:
A1
Abstract:
A conjugated-diene-based polymer which has a branching degree (Bn), as determined by a viscometer-assisted GPC/light-scattering method, of 8 or greater and a change (ΔT) in oxidation initiation temperature of 11.9°C or less through application of a thermal load and which includes units of an aromatic vinyl compound monomer.
Inventors:
SUMITANI SHOGO (JP)
HISAMURA KENTA (JP)
SEKIKAWA SHINICHI (JP)
KYO MIKI (JP)
TOBO SHURI (JP)
HISAMURA KENTA (JP)
SEKIKAWA SHINICHI (JP)
KYO MIKI (JP)
TOBO SHURI (JP)
Application Number:
PCT/JP2020/028486
Publication Date:
February 11, 2021
Filing Date:
July 22, 2020
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B60C1/00; C08C19/25; C08L15/00
Domestic Patent References:
| WO2016133154A1 | 2016-08-25 | |||
| WO2020070961A1 | 2020-04-09 | |||
| WO2007114203A1 | 2007-10-11 |
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| JP2011089086A | 2011-05-06 | |||
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| JPS59140211A | 1984-08-11 | |||
| JPS428704B1 | 1967-04-20 | |||
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Other References:
M. KOLTHOFF ET AL., J. POLYM. SCI., vol. 1, 1946, pages 429
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
TANAKA ET AL., POLYMER, vol. 22, 1981, pages 1721
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
TANAKA ET AL., POLYMER, vol. 22, 1981, pages 1721
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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