Title:
変性共役ジエン系重合体の製造方法、変性共役ジエン系重合体、及びゴム組成物
Document Type and Number:
Japanese Patent JP5458576
Kind Code:
B2
Abstract:
A method for producing a modified conjugated diene polymer includes a step (A) carrying out a primary modification reaction that reacts a heterocumulene compound having two or more specific functional groups with a conjugated diene polymer having a vinyl content of below 10% and a cis-1,4-bond content of 75% or more and possessing an active end to obtain a primary-modified conjugated diene polymer, and a step (B) carrying out a secondary modification reaction that reacts an active hydrogen-containing compound that includes one or more functional groups selected from the group consisting of an amino group, an imino group, a mercapto group, and a hydroxyl group with the primary-modified conjugated diene polymer to obtain a secondary-modified conjugated diene polymer. The method can produce a modified conjugated diene polymer that exhibits low heat build-up (low fuel consumption) and excellent wear resistance.
Inventors:
Ryoji Tanaka
Koichiro Tani
Takuo Sone
Toshihiro Tadaki
Koichiro Tani
Takuo Sone
Toshihiro Tadaki
Application Number:
JP2008551156A
Publication Date:
April 02, 2014
Filing Date:
December 27, 2007
Export Citation:
Assignee:
JSR CORPORATION
International Classes:
C08F8/30; B60C1/00; C08F8/34; C08K3/04; C08K3/36; C08L15/00; C08L21/00
Domestic Patent References:
| JPS63297403A | 1988-12-05 | |||
| JP2005082735A | 2005-03-31 | |||
| JPH10306113A | 1998-11-17 | |||
| JPS57212221A | 1982-12-27 |
Foreign References:
| WO2006030806A1 | 2006-03-23 | |||
| WO2006112450A1 | 2006-10-26 |
Attorney, Agent or Firm:
Ippei Watanabe
Koji Kikawa
Chongqing Sugano
Koji Kikawa
Chongqing Sugano