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Title:
RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2019/124502
Kind Code:
A1
Abstract:
Provided is a practical rubber composition for tires, which is capable of suppressing increase of tanδ of a tire around 60°C, while improving tanδ of the tire around 0°C. This rubber composition contains a diene rubber and a liquid crystalline polymer that has a phase transition temperature (Ti) between a liquid crystal phase and an isotropic phase of 20°C or less; and the liquid crystalline polymer is a polymerization reaction product of an isocyanate compound and a mesogenic diol which is an addition reaction product of a mesogenic group-containing compound having an active hydrogen group and an alkylene oxide and/or styrene oxide.

Inventors:
HAYAMI JUMPEI (JP)
ISEKI SEIJI (JP)
Application Number:
PCT/JP2018/047016
Publication Date:
June 27, 2019
Filing Date:
December 20, 2018
Export Citation:
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Assignee:
TOYO TIRE CORP (JP)
International Classes:
C08L9/00; B60C1/00; C08G18/48; C08K3/36; C08L75/08; C08L101/12
Domestic Patent References:
WO2013118785A12013-08-15
WO2014092184A12014-06-19
Foreign References:
US3925270A1975-12-09
JP2013185091A2013-09-19
JP2013177632A2013-09-09
JPH09296022A1997-11-18
JPH1134182A1999-02-09
JP2003048999A2003-02-21
JPS6169856A1986-04-10
JPH09111115A1997-04-28
JPH09111050A1997-04-28
JPH07138413A1995-05-30
JPH11158387A1999-06-15
JP2003277636A2003-10-02
JP2001098245A2001-04-10
JP2006522200A2006-09-28
JP2005280603A2005-10-13
JP2006176752A2006-07-06
JP2007070591A2007-03-22
JP2010150343A2010-07-08
JP2012211316A2012-11-01
JP2016529376A2016-09-23
JP2001187841A2001-07-10
Attorney, Agent or Firm:
OKINAKA Jin (JP)
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