MODIFIED LIQUID DIENE POLYMER AND RUBBER COMPOSITION

Title:

MODIFIED LIQUID DIENE POLYMER AND RUBBER COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2019/172185

Kind Code:

A1

Abstract:

Provided are: a modified liquid diene polymer which enables the achievement of a crosslinked product of a rubber composition, said crosslinked product having excellent wet grip performance, wear resistance and the like, and in said crosslinked product a filler being dispersed in an ideal state for the improvement of the physical properties; a rubber composition which contains this modified liquid diene polymer; the above-described crosslinked product; and a tire which partially uses this composition or this crosslinked product. A modified liquid diene polymer which is obtained by modifying a liquid diene block copolymer by a specific silane compound, said liquid diene block copolymer containing a polymer block (b'1) or (b"2) that contains a butadiene unit, and a polymer block (b'2) or (b"2). This modified liquid diene polymer has a functional group that is derived from the silane compound; and this modified liquid diene polymer satisfies specific conditions.

Inventors:

OHTA SATOMI (JP)
KANBARA HIROSHI (JP)
KODA DAISUKE (JP)

Application Number:

PCT/JP2019/008405

Publication Date:

September 12, 2019

Filing Date:

March 04, 2019

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

C08C19/25; C08F297/02; C08K3/013; C08K3/04; C08K3/36; C08K5/5419; C08L9/06; C08L15/00; C08L21/00

Domestic Patent References:

WO2013081053A1

2013-06-06

Foreign References:

JP2014105294A	2014-06-09
JP2014162809A	2014-09-08
JP2015113425A	2015-06-22
JP2000344949A	2000-12-12
JP2013249359A	2013-12-12
JP2011132298A	2011-07-07

Other References: