METHOD FOR MANUFACTURING CONJUGATED DIENE POLYMER, CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, AND TIRE

Title:

METHOD FOR MANUFACTURING CONJUGATED DIENE POLYMER, CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, AND TIRE

Document Type and Number:

WIPO Patent Application WO/2016/027402

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a method for manufacturing a conjugated diene polymer capable of increasing the robustness of the polymerization reaction system. Another purpose of the present invention is to provide a conjugated diene polymer manufactured by said manufacturing method and having a high cis-1,4 bond content. A method for manufacturing a conjugated diene polymer characterized in that a conjugated diene monomer is polymerized using a polymerization catalyst composition comprising a rare earth element compound and a compound with a cyclopentadiene backbone, and a conjugated diene polymer characterized in being manufactured by said manufacturing method and in the cis-1,4 bond content being at least 95%.

Inventors:

YAMAGATA YUSUKE (JP)
HIRATA NARUKUNI (JP)
TANABE TOMOE (JP)
KAITA SHOJIRO (JP)
KIMURA MADOKA (JP)

Application Number:

PCT/JP2015/003349

Publication Date:

February 25, 2016

Filing Date:

July 02, 2015

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

C08F4/54; B60C1/00; C08F136/04; C08L9/00

Domestic Patent References:

WO2013179651A1

2013-12-05

Foreign References:

JP2002544350A	2002-12-24
JP2001114809A	2001-04-24
JP2011516689A	2011-05-26
JP2013053212A	2013-03-21
JP2013035981A	2013-02-21
JP2011068711A	2011-04-07
JP2010285550A	2010-12-24
JP2013053213A	2013-03-21
JP2014019732A	2014-02-03
JP2013216850A	2013-10-24
JPH0394833A	1991-04-19
JP2004515617A	2004-05-27

Other References: