Title:
変性共役ジエン系重合体、変性共役ジエン系重合体組成物、タイヤ、及び変性共役ジエン系重合体の製造方法
Document Type and Number:
Japanese Patent JP6894426
Kind Code:
B2
Abstract:
A modified conjugated diene polymer satisfying the following conditions (I) to (IV):(I) at least two peaks are observed in a molecular weight distribution curve obtained from measurement by gel permeation chromatography (GPC);(II) when a peak of the highest molecular weight is defined as a peak (B), a peak of the largest peak area except for the peak (B) is defined as a peak (T) in the molecular weight distribution curve, a peak molecular weight of the peak (B) is from 500,000 to 2,500,000 and a peak molecular weight of the peak (T) is from 150,000 to 600, 000;(III) an area of the peak (T) is from 30% to 80% and a total value of an area of the peak (B) and the area of the peak (T) is 65% or more when the total area of the molecular weight distribution curve is defined as 100%; and(IV) a proportion of a modified polymer chain(s) in a region ranging from a low-molecular-weight side to a point of 5% cumulative area is from 60% to 99% in the molecular weight distribution curve.
Inventors:
Atsushi Yasumoto
Hideki Yamazaki
Hideki Yamazaki
Application Number:
JP2018502030A
Publication Date:
June 30, 2021
Filing Date:
September 01, 2017
Export Citation:
Assignee:
Japan Elastomer Co., Ltd.
ASAHI KASEI KABUSHIKI KAISHA
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08F8/30; B60C1/00; C08F36/04; C08K3/00; C08L9/00; C08L9/06; C08L15/00
Domestic Patent References:
| JP2014055264A | ||||
| JP2013213162A | ||||
| JP2012172077A | ||||
| JP2000290465A | ||||
| JP2009030027A | ||||
| JP8013090A | ||||
| JP10060174A |
Foreign References:
| WO2012086496A1 | ||||
| WO2010044252A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito