RUBBER COMPOSITION AND PNEUMATIC TIRE

Title:

RUBBER COMPOSITION AND PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2013/077015

Kind Code:

A1

Abstract:

The present invention provides a rubber composition and a pneumatic tire using said rubber composition, which are capable of improving low fuel consumption, abrasion resistance, and processability in a balanced manner. The present invention relates to a rubber composition which includes silica, a silane coupling agent, and a conjugated diene polymer obtained by reacting a compound containing nitrogen and/or silicon with an active terminal of a copolymer obtained by polymerizing a monomer component including a conjugated diene compound and a silicon-containing vinyl compound using a polymerization initiator represented by formula (I), said rubber composition having in 100 mass% of the rubber component, a conjugated diene polymer content of 5-45 mass%, a silica content per 100 parts by mass of the rubber component of 5-100 parts by mass, and a silane coupling agent content per 100 parts by mass of the silica of 2-12 parts by mass.

Inventors:

ONO SHUICHIRO (JP)
TERAKAWA KATSUMI (JP)
TOKIMUNE RYUICHI (JP)

Application Number:

PCT/JP2012/066205

Publication Date:

May 30, 2013

Filing Date:

June 26, 2012

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)
ONO SHUICHIRO (JP)
TERAKAWA KATSUMI (JP)
TOKIMUNE RYUICHI (JP)

International Classes:

C08L15/00; B60C1/00; C08C19/22; C08C19/25; C08F230/08; C08F236/04; C08K3/36; C08K5/541; C08L21/00

Domestic Patent References:

WO2012011571A1	2012-01-26
WO2011087004A1	2011-07-21

Foreign References:

JP2012167257A	2012-09-06
JP2000239444A	2000-09-05
JP2011079913A	2011-04-21
JPH08253520A	1996-10-01
JPS4817674B1	1973-05-31
JP2010077413A	2010-04-08
JP2006233177A	2006-09-07
JP2011144324A	2011-07-28
JP2009035643A	2009-02-19

Other References: