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Title:
METHOD FOR PRODUCING TERMINAL-MODIFIED POLYMER
Document Type and Number:
WIPO Patent Application WO/2014/132899
Kind Code:
A1
Abstract:
The present invention produces a terminal-modified polymer by performing a polymerization reaction of a vinyl aromatic monomer and/or a conjugated diene monomer while in the presence of an anionic polymerization initiator, and thereafter, stopping the polymerization reaction by adding an alkoxy titanium compound thereto. Alternatively, it is possible to produce a terminal-modified polymer by stopping the polymerization reaction by adding a titanium halide compound instead of the alkoxy titanium compound, and thereafter, adding a C1-4 lower alcohol. The obtained terminal-modified polymer exhibits improved silica dispersion properties and is usable as a compounding agent for a rubber composition to be used in the pneumatic tire of a vehicle.

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Inventors:
UENISHI KAZUYA (JP)
HIZA MISAO (JP)
Application Number:
PCT/JP2014/054211
Publication Date:
September 04, 2014
Filing Date:
February 21, 2014
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08F8/42; C08F4/46; C08F12/00; C08F36/00; C08L9/00
Domestic Patent References:
WO2008123163A12008-10-16
Foreign References:
JP2000143881A2000-05-26
JPS4747313B
Attorney, Agent or Firm:
YOSHIDA Toshio et al. (JP)
Toshio Yoshida (JP)
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