Title:
CARBON BLACK, RUBBER COMPOSITION AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2013/015368
Kind Code:
A1
Abstract:
The present invention provides a carbon black which is characterized in that the standard deviation (σ) of the aggregate distribution of the carbon black as obtained by a light scattering method using ultraviolet light satisfies formula (1).
σ < -48.7 × (24M4DBP/Dst) + 161.8 (1)
(In formula (1), 24M4DBP represents a compressed dibutyl phthalate absorption (cm3/100 g) and Dst (nm) represents a Stokes equivalent diameter corresponding to the maximum frequency in an aggregate distribution as obtained by a centrifugal sedimentation method.) The carbon black is capable of improving both the wear resistance and low rolling resistance of a tire. The present invention also provides: a rubber composition in which the carbon black is blended; and a pneumatic tire which uses the rubber composition.
Inventors:
YANAGIOKA MASAKI (JP)
Application Number:
PCT/JP2012/068995
Publication Date:
January 31, 2013
Filing Date:
July 26, 2012
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
YANAGIOKA MASAKI (JP)
YANAGIOKA MASAKI (JP)
International Classes:
B60C1/00; C09C1/48; C08K3/04; C08L21/00
Foreign References:
| JP2005008877A | 2005-01-13 | |||
| JP2003096332A | 2003-04-03 | |||
| JP2011084696A | 2011-04-28 | |||
| JPH06136288A | 1994-05-17 | |||
| JPH06184364A | 1994-07-05 | |||
| JP2000080302A | 2000-03-21 | |||
| JP2004307619A | 2004-11-04 |
Other References:
See also references of EP 2738225A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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Claims: