TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE

Title:

TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2015/001935

Kind Code:

A1

Abstract:

Provided are: a rubber composition for tires, that maintains or improves good elongation at break and low fuel consumption, prevents discoloration, and is capable of improving ozone resistance; and a pneumatic tire using same. The rubber composition for tires includes: a rubber component including at least one type selected from a group comprising a specific non-oil extended butadiene rubber and a specific oil extended butadiene rubber; a phenylenediamine-based antioxidant; a specific nonionic surfactant; and carbon black and/or silica. The diene-based rubber within per 100% by mass rubber component is 70%-100% by mass. The phenylenediamine-based antioxidant content with respect to 100 parts by mass rubber component is 1.0-8.0 parts by mass, the nonionic surfactant content is 0.1-5.0 parts by mass, and the combined carbon black and silica content is 20-45 parts by mass.

Inventors:

MIYAZAKI TATSUYA (JP)
TOKIMUNE RYUICHI (JP)

Application Number:

PCT/JP2014/065561

Publication Date:

January 08, 2015

Filing Date:

June 12, 2014

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)

International Classes:

C08L9/00; B60C1/00; C08K3/04; C08K3/36; C08K5/10; C08K5/18; C08L91/06

Domestic Patent References:

WO2013046804A1

2013-04-04

Foreign References:

JPS63213536A	1988-09-06
JP2012036351A	2012-02-23
JP2012057153A	2012-03-22
JPH05179071A	1993-07-20
JPH05194790A	1993-08-03
JP2007176267A	2007-07-12
JP2008075066A	2008-04-03

Other References: