Title:
MODIFIED CONJUGATED DIENE RUBBER, METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/155326
Kind Code:
A1
Abstract:
Provided is a method for producing a conjugated diene rubber useful as a starting material for a crosslinked rubber capable of being used in a tire tread and the like in order to reduce fuel consumption. The method for producing a modified conjugated diene rubber comprises: (a) a step for obtaining a modified conjugated diene polymer 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 and an aromatic vinyl compound, with a first alkoxysilane compound having alkoxysilyl groups comprising two or more alkoxy groups and at least one group capable of becoming an onium in the presence of an onium-producing agent; and (b) a step for mixing the resulting modified conjugated diene polymer, the onium-producing agent, a second alkoxysilane compound having alkoxysilyl groups and at least one group capable of becoming an onium in the presence of the onium-producing agent, and, as a condensation catalyst, an alkoxysilane compound containing a metal element.
Inventors:
TANAKA RYOUJI (JP)
SHIBATA MASAHIRO (JP)
MATSUMOTO TAKAOMI (JP)
HASEGAWA KENJI (JP)
TADAKI TOSHIHIRO (JP)
SHIBATA MASAHIRO (JP)
MATSUMOTO TAKAOMI (JP)
HASEGAWA KENJI (JP)
TADAKI TOSHIHIRO (JP)
Application Number:
PCT/JP2011/061894
Publication Date:
December 15, 2011
Filing Date:
May 24, 2011
Export Citation:
Assignee:
JSR CORP (JP)
TANAKA RYOUJI (JP)
SHIBATA MASAHIRO (JP)
MATSUMOTO TAKAOMI (JP)
HASEGAWA KENJI (JP)
TADAKI TOSHIHIRO (JP)
TANAKA RYOUJI (JP)
SHIBATA MASAHIRO (JP)
MATSUMOTO TAKAOMI (JP)
HASEGAWA KENJI (JP)
TADAKI TOSHIHIRO (JP)
International Classes:
C08C19/00; C08K3/04; C08K3/36; C08L15/00
Domestic Patent References:
| WO2011049180A1 | 2011-04-28 | |||
| WO2010104149A1 | 2010-09-16 | |||
| WO2003048216A1 | 2003-06-12 | |||
| WO2008123163A1 | 2008-10-16 |
Foreign References:
| JP2010189613A | 2010-09-02 | |||
| JP2009287020A | 2009-12-10 | |||
| JP2004018795A | 2004-01-22 | |||
| JP2005290355A | 2005-10-20 | |||
| JP2006249069A | 2006-09-21 |
Other References:
See also references of EP 2581391A4
Attorney, Agent or Firm:
HIRATA, Naoyuki (JP)
Naoyuki Hirata (JP)
Naoyuki Hirata (JP)
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Claims: