Title:
MODIFIED CONJUGATED DIENE RUBBER, METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2012/147565
Kind Code:
A1
Abstract:
Provided is a method for producing a conjugated diene rubber that can be used as a starting material for crosslinked rubber with which low-fuel consumption is improved and which is used for tire treads, and the like. Also provided is a method for producing a modified conjugated diene rubber, comprising (a) a step for obtaining a modified conjugated diene polymer comprising functional groups (II) by reacting a conjugated diene polymer, which has alkali metal or alkaline earth metal active terminals and is obtained by polymerization of a conjugated diene compound or a conjugated diene compound and an aromatic vinyl compound, and a hydrocarbyloxysilane compound having at least one each of functional group (I) and functional group(II) per molecule and (b) a step for obtaining a modified conjugated diene rubber by mixing the modified conjugated diene polymer obtained in step (a) and at least one selected from the group consisting of organic acid compounds and organic acid derivatives. Functional group (I) is a hydrocarbyloxysilyl group and functional group (II) is a nitrogen-containing group obtained by substituting two hydrogen atoms of the primary amino groups with protector groups.
Inventors:
MORITA HIROYUKI (JP)
SHIBATA MASAHIRO (JP)
TANAKA RYOUJI (JP)
SHIBATA MASAHIRO (JP)
TANAKA RYOUJI (JP)
Application Number:
PCT/JP2012/060362
Publication Date:
November 01, 2012
Filing Date:
April 17, 2012
Export Citation:
Assignee:
JSR CORP (JP)
MORITA HIROYUKI (JP)
SHIBATA MASAHIRO (JP)
TANAKA RYOUJI (JP)
MORITA HIROYUKI (JP)
SHIBATA MASAHIRO (JP)
TANAKA RYOUJI (JP)
International Classes:
C08C19/25; B60C1/00; C08C19/22; C08K3/04; C08K3/36; C08L15/00
Domestic Patent References:
| WO2011155326A1 | 2011-12-15 | |||
| WO2011049180A1 | 2011-04-28 | |||
| WO2011030833A1 | 2011-03-17 | |||
| WO2011125698A1 | 2011-10-13 | |||
| WO2003048216A1 | 2003-06-12 |
Foreign References:
| JP2009155394A | 2009-07-16 | |||
| JP2009132907A | 2009-06-18 | |||
| JP2004168903A | 2004-06-17 | |||
| JP2004018795A | 2004-01-22 | |||
| JP2008285558A | 2008-11-27 | |||
| JP2004018795A | 2004-01-22 | |||
| JP2005290355A | 2005-10-20 | |||
| JP2006249069A | 2006-09-21 |
Other References:
See also references of EP 2703416A4
Attorney, Agent or Firm:
HIRATA, Naoyuki (JP)
Naoyuki Hirata (JP)
Naoyuki Hirata (JP)
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Claims: