RUBBER COMPOSITION AND PNEUMATIC TIRE

Title:

RUBBER COMPOSITION AND PNEUMATIC TIRE

Document Type and Number:

Japanese Patent JP2013018840

Kind Code:

A

Abstract:

To provide a rubber composition capable of improving low fuel consumption and wet grip performance in good valance; and a pneumatic tire using the rubber composition for respective tire members (in particular, for a tread).

The rubber composition includes: a rubber component containing a copolymer obtained by copolymerizing 1,3-butadiene, styrene, and a compound represented by formula (I) wherein R¹ is a 1-10C hydrocarbon group; silica; and a silane coupling agent having a mercapto group. In the copolymer: one terminus has an amino group while the other terminus has a functional group containing at least one kind of atom selected from the group consisting of nitrogen, oxygen, and silicon; and the weight-average molecular weight is 1.0×10⁵-2.5×10⁶.

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Inventors:

KOJIMA RYOJI
KAMISAKA KENICHI
IWAMOTO MASAKO

Application Number:

JP2011152037A

Publication Date:

January 31, 2013

Filing Date:

July 08, 2011

Export Citation:

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Assignee:

SUMITOMO RUBBER IND

International Classes:

C08L15/00; B60C1/00; C08C19/22; C08F236/06; C08K3/36; C08K5/548

Domestic Patent References:

JP2006257260A	2006-09-28
JP2010260920A	2010-11-18
JP2011126927A	2011-06-30
JP2011126930A	2011-06-30

Attorney, Agent or Firm:

Atomi International Patent Office

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