TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE

WIPO Patent Application WO/2015/194549

A1

The purpose of the present invention is to provide: a tire rubber composition having excellent wear resistance, wet performance, dry performance, and low rolling resistance, when used in a tire; and a pneumatic tire using said tire rubber composition in a tread section thereof. This tire rubber composition contains natural rubber, a diene-based blended rubber comprising a solution-polymerized SBR and an emulsion-polymerized SBR, an aromatic modified terpene resin, silica, and carbon black. The solution-polymerized SBR contains a specific solution-polymerized SBR having a block containing an isoprene unit at one end thereof and a modified terminal for silica at the other end thereof. The styrene unit content in the emulsion-polymerized SBR is 35%-50% by mass. The total natural rubber content and the total solution-polymerized SBR and emulsion-polymerized SBR content in the diene-based blended rubber are specified and the aromatic modified terpene resin, silica, and carbon black content, relative to the diene-based blended rubber is specified.

WO/2015/109790

COMPOSITION FROM COMBINATION OF TRANS-POLYISOPRENE RUBBER AND CIS-POLYISOPRENE RUBBER AND PROCESS THEREFOR

TAKEDA SHINYA (JP)

PCT/JP2015/067299

December 23, 2015

June 16, 2015

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YOKOHAMA RUBBER CO LTD (JP)

C08L7/00; B60C1/00; C08K3/04; C08K3/36; C08L9/06; C08L45/00; C08L53/02; C08L65/00

WO2011148965A1

2011-12-01

JPS61162536A	1986-07-23
JP2012241158A	2012-12-10
JP2007161819A	2007-06-28
JP2009091498A	2009-04-30
JP2001114979A	2001-04-24

WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)

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