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Title:
PRODUCTION METHOD FOR MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, AND MODIFIED CONJUGATED DIENE POLYMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/040312
Kind Code:
A1
Abstract:
Disclosed is a modified conjugated diene polymer and a modified conjugated diene polymer composition which yield a vulcanizate exhibiting excellent processability, an excellent balance between wet skid resistance and low hysteresis loss, and having a wear resistance and a breaking strength sufficient for practical use. The method for producing a modified conjugated diene polymer comprises a polymerization step, in which a conjugated diene polymer having an active terminal is obtained by using an alkali metal compound or an alkaline earth metal compound as a polymerization initiator to polymerize a conjugated diene compound or copolymerize a conjugated diene compound and an aromatic vinyl compound; and a modification step, in which a compound having a specific structure is reacted with the active terminal of the conjugated diene polymer.

Inventors:
YOSHIDA JUNICHI (JP)
SEKIKAWA SHINICHI (JP)
MATSUDA TAKAAKI (JP)
Application Number:
PCT/JP2010/066431
Publication Date:
April 07, 2011
Filing Date:
September 22, 2010
Export Citation:
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Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
YOSHIDA JUNICHI (JP)
SEKIKAWA SHINICHI (JP)
MATSUDA TAKAAKI (JP)
International Classes:
C08C19/25; C08F36/04; C08K3/36; C08L15/00
Domestic Patent References:
WO2006112450A12006-10-26
WO2001023467A12001-04-05
WO2007034785A12007-03-29
WO2008013090A12008-01-31
WO2007114203A12007-10-11
Foreign References:
JP2010132872A2010-06-17
JP2008143943A2008-06-26
JP2005232351A2005-09-02
JPH0245492A1990-02-15
JPH02132104A1990-05-21
JPH07233217A1995-09-05
JP2001158834A2001-06-12
JP2003171418A2003-06-20
JPH0428704A1992-01-31
JPH0436636A1992-02-06
JPS634841A1988-01-09
JP2001079709A2001-03-27
JPS6453851A1989-03-01
JPH029041A1990-01-12
JPH08109219A1996-04-30
US5708092A1998-01-13
GB2241239A1991-08-28
US5527753A1996-06-18
JPS59140211A1984-08-11
JP2009230412A2009-10-08
Other References:
R.R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
I.M. KOLTHOFF ET AL., J. POLYM. SCI., vol. 1, 1946, pages 429
KAUTSCHUK GUMMI KUNSTSTOFFE, vol. 52, no. 12, 1999, pages 799
See also references of EP 2484701A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
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