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Title:
CONJUGATED DIENE POLYMER, BRANCHING AGENT, METHOD FOR MANUFACTURING CONJUGATED DIENE POLYMER, EXTENDED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2020/070961
Kind Code:
A1
Abstract:
A modified conjugated diene polymer having an absolute molecular weight of 40×104 to 5000×104 as measured by GPC with a viscometer/light scattering analysis, a degree of branching (Bn) of 8 or greater as measured by the aforementioned GPC with a viscometer/light scattering analysis, and a modification rate of at least 60% by mass.

Inventors:
HISAMURA KENTA (JP)
YAMAMOTO MIHO (JP)
Application Number:
PCT/JP2019/029980
Publication Date:
April 09, 2020
Filing Date:
July 31, 2019
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08F236/04; B60C1/00; C08F8/42; C08L15/00
Domestic Patent References:
WO2018034194A12018-02-22
WO2018164053A12018-09-13
WO2018034195A12018-02-22
WO2007114203A12007-10-11
Foreign References:
JP2011089086A2011-05-06
CN105837751A2016-08-10
US20050182191A12005-08-18
JP2009263574A2009-11-12
JP2005290355A2005-10-20
JPH11189616A1999-07-13
JP2003171418A2003-06-20
JPS59140211A1984-08-11
JPS428704B11967-04-20
JPS436636B11968-03-12
JPS634841A1988-01-09
JPS6437970A1989-02-08
JPS6453851A1989-03-01
JPH029041A1990-01-12
JPH08109219A1996-04-30
JP2018188604A2018-11-29
Other References:
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
I. M. KOLTHOFF ET AL., J. POLYM. SCI., vol. 1, 1946, pages 429
TANAKA ET AL., POLYMER, vol. 22, 1981, pages 1721
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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