HYDROGENATED CONJUGATED DIENE POLYMER, POLYMER COMPOSITION, CROSSLINKED BODY AND TIRE

Title:

HYDROGENATED CONJUGATED DIENE POLYMER, POLYMER COMPOSITION, CROSSLINKED BODY AND TIRE

Document Type and Number:

WIPO Patent Application WO/2020/196899

Kind Code:

A1

Abstract:

Provided is a hydrogenated conjugated diene polymer having a structure formed by bonding a nitrogen-containing compound having two or more alkoxysilyl groups and two or more nitrogen atoms with a plurality of conjugated diene polymer chains. When the composition ratios (molar ratios) of a structural unit represented by formula (1), a structural unit represented by formula (2), a structural unit represented by formula (3), and a structural unit represented by formula (4) in said polymer are respectively signified by p, q, r, and s, a value α expressed by numerical formula (i) is 0.80-0.97. In addition, the equilibrium storage modulus E' of said polymer is 2.4 MPa or more. (i): α = (p + (0.5 × r))/(p + q + (0.5 × r) + s)

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Inventors:

ADACHI TAKUMI (JP)
SENGA HIROFUMI (JP)
KAIZU MICHITAKA (JP)
KIKUCHI TOSHIMITSU (JP)
SANO TAKUYA (JP)

Application Number:

PCT/JP2020/014380

Publication Date:

October 01, 2020

Filing Date:

March 27, 2020

Export Citation:

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Assignee:

JSR CORP (JP)

International Classes:

B60C1/00; C08F212/06; C08F236/10; C08K3/00; C08L15/00

Domestic Patent References:

WO2017014283A1	2017-01-26
WO2018034195A1	2018-02-22
WO2018164053A1	2018-09-13
WO2018128291A1	2018-07-12
WO2017086208A1	2017-05-26
WO2008123164A1	2008-10-16
WO2017221943A1	2017-12-28
WO2014133097A1	2014-09-04

Foreign References:

US20160122480A1	2016-05-05
JP2004168904A	2004-06-17
JP2017082235A	2017-05-18
JP2019061722A	2019-04-18
JPH11349632A	1999-12-21
JPS634841A	1988-01-09
JPH1137970A	1999-02-12

Other References: