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Title:
MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2018/034194
Kind Code:
A1
Abstract:
A modified conjugated diene polymer wherein: the proportion of a coupling polymer by gel permeation chromatography (GPC) is at least 30% by mass and less than 70% by mass of the whole modified conjugated diene polymer; the rate of modification by adsorption GPC is at least 30% by mass and less than 70% by mass of the whole modified conjugated diene polymer; (Mp1/Mp2) ≥ 3.4 when the peak top molecular weight of the coupling polymer by GPC of the modified conjugated diene polymer is Mp1 and the peak top molecular weight of an uncoupling polymer is Mp2; and the shrinkage factor (g') is less than 0.60.

Inventors:
SEKIKAWA, Shinichi (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
KYO, Miki (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
Application Number:
JP2017/028653
Publication Date:
February 22, 2018
Filing Date:
August 07, 2017
Export Citation:
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Assignee:
ASAHI KASEI KABUSHIKI KAISHA (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
International Classes:
C08C19/25; B60C1/00; C08C19/22; C08F8/30; C08F36/04; C08K3/36; C08L15/00
Domestic Patent References:
WO2016199779A12016-12-15
WO2016133154A12016-08-25
Foreign References:
JP2016079217A2016-05-16
KR20160063980A2016-06-07
JP2015131955A2015-07-23
JP2017014339A2017-01-19
JP2017002189A2017-01-05
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (TMI ASSOCIATES, 23rd Floor Roppongi Hills Mori Tower, 6-10-1, Roppongi, Minato-k, Tokyo 23, 〒1066123, JP)
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