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Title:
METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER COMPOSITION, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2013/035589
Kind Code:
A1
Abstract:
A method for producing a modified conjugated diene polymer, comprising: a polymerization step of producing a conjugated diene polymer having an active terminal using a polymerization initiator that comprises a compound having at least one nitrogen atom in the molecule and an organic lithium compound; and a modification step of reacting the active terminal of the conjugated diene polymer with a modifying agent represented by chemical formula (6). (In formula (6), R4 to R7 independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R8 represents an alkylene group having 3 to 10 carbon atoms; R9 represents an alkylene group having 1 to 20 carbon atoms; m represents an integer of 1 or 2; and n represents an integer of 2 or 3.)

Inventors:
YAMADA CHIGUSA (JP)
YOSHIDA JUNICHI (JP)
Application Number:
PCT/JP2012/071730
Publication Date:
March 14, 2013
Filing Date:
August 28, 2012
Export Citation:
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Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
YAMADA CHIGUSA (JP)
YOSHIDA JUNICHI (JP)
International Classes:
C08C19/25; B60C1/00; C08F4/48; C08K3/36; C08L15/00; F16F1/36
Domestic Patent References:
WO2006104215A12006-10-05
WO2009072650A12009-06-11
WO2001023467A12001-04-05
WO2007114203A12007-10-11
Foreign References:
JP2009287020A2009-12-10
JP2010241983A2010-10-28
JP2011006543A2011-01-13
JP2010280865A2010-12-16
JP2009263587A2009-11-12
JP2005290355A2005-10-20
JPH11189616A1999-07-13
JP2003171418A2003-06-20
JP2008527150A2008-07-24
JP2001131230A2001-05-15
JPS59140211A1984-08-11
JPS428704B11967-04-20
JPS436636B11968-03-12
JPS634841A1988-01-09
JPS6437970A1989-02-08
JPS6453851A1989-03-01
JPH029041A1990-01-12
JPH08109219A1996-04-30
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 2754674A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
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Claims: