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)
KANOU MOTOAKI (JP)
Application Number:
PCT/JP2012/004893
Publication Date:
February 14, 2013
Filing Date:
August 01, 2012
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
KONNO KUMIKO (JP)
KANOU MOTOAKI (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:
See also references of EP 2743304A4
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
Download PDF:
Claims:
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