RUBBER COMPOSITION AND PNEUMATIC TIRE USING SAME

Title:

RUBBER COMPOSITION AND PNEUMATIC TIRE USING SAME

Document Type and Number:

WIPO Patent Application WO/2013/021586

Kind Code:

A1

Abstract:

The present invention relates to a rubber composition which has good workability and is suitable for tire inner liners. More specifically, the present invention relates to a rubber composition which contains a rubber component and an inorganic filler having an aspect ratio of 2-200 and which optionally contains carbon black and a metal salt of a fatty acid. This rubber composition is characterized in that the blending amounts of the inorganic filler, the carbon black and the metal salt of a fatty acid satisfy the following formula (1). C ≥ 0.016 × (A - 0.5 × B) - 1.18 (1) (In the formula, A represents the blending amount (parts by mass) of the inorganic filler relative to 100 parts by mass of the rubber component; B represents the blending amount (parts by mass) of the carbon black relative to 100 parts by mass of the rubber component; and C represents the blending amount (parts by mass) of the metal salt of a fatty acid relative to 100 parts by mass of the rubber component.)

Inventors:

KONNO KUMIKO (JP)
KANOU MOTOAKI (JP)

Application Number:

PCT/JP2012/004893

Publication Date:

February 14, 2013

Filing Date:

August 01, 2012

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
KONNO KUMIKO (JP)
KANOU MOTOAKI (JP)

International Classes:

C08L21/00; B60C5/14; C08K3/00; C08K5/098; C08L23/22

Domestic Patent References:

WO2010074286A1	2010-07-01
WO2001062846A1	2001-08-30

Foreign References:

JP2009138135A	2009-06-25
JP2007112847A	2007-05-10
JP2003238744A	2003-08-27
JP2009242538A	2009-10-22
JP2007191510A	2007-08-02
JP2009013259A	2009-01-22
JP2005206673A	2005-08-04
JP2009030808A	2009-02-12
JPH01193342A	1989-08-03
JP2003335902A	2003-11-28

Other References: