Title:
RUBBER COMPOSITION, AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2013/077020
Kind Code:
A1
Abstract:
The present invention provides a rubber composition whereby it is possible to improve processability, low fuel consumption, rubber strength, resistance to corrosion, wet grip performance, and steering stability in a balanced manner. The present invention also provides a pneumatic tire using said rubber composition. The present invention pertains to a rubber composition containing 35 mass% of a styrene butadiene rubber per 100 mass% of a rubber component and comprising: a conjugated diene-based polymer obtained by reacting a compound containing nitrogen atoms and/or silicon atoms with the active terminal of a co-polymer obtained by polymerizing a monomer component containing a conjugated diene compound and a silicon-containing vinyl compound using a polymerization initiator represented by formula (I); and a silica having a nitrogen adsorption specific surface area between 40 and 400 m2/g. The content of the conjugated diene-based polymer is 1 to 90 mass% and the content of a polyisoprene-based rubber is 0 to 40 mass% in 100 mass% of the rubber component, and the content of the silica is 10 to 150 parts by mass relative to 100 parts by mass of the rubber component.
More Like This:
| JP6863504 | tire |
| JP5431640 | Rubber composition for sidewalls and pneumatic tires |
Inventors:
SATO DAISUKE (JP)
TORITA KAZUYA (JP)
ISHINO SOH (JP)
TORITA KAZUYA (JP)
ISHINO SOH (JP)
Application Number:
PCT/JP2012/066218
Publication Date:
May 30, 2013
Filing Date:
June 26, 2012
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
SATO DAISUKE (JP)
TORITA KAZUYA (JP)
ISHINO SOH (JP)
SATO DAISUKE (JP)
TORITA KAZUYA (JP)
ISHINO SOH (JP)
International Classes:
C08L9/00; B60C1/00; C08C19/22; C08C19/25; C08F230/08; C08F236/04; C08K3/36; C08K5/548; C08L15/00
Domestic Patent References:
| WO2012011571A1 | 2012-01-26 | |||
| WO2011087004A1 | 2011-07-21 |
Foreign References:
| JP2012167257A | 2012-09-06 | |||
| JP2000239444A | 2000-09-05 | |||
| JP2011079913A | 2011-04-21 | |||
| JPH08253520A | 1996-10-01 | |||
| JPS4817674B1 | 1973-05-31 | |||
| JP2010077413A | 2010-04-08 | |||
| JP2006233177A | 2006-09-07 | |||
| JP2004137463A | 2004-05-13 | |||
| JP2011144324A | 2011-07-28 | |||
| JP2000344955A | 2000-12-12 |
Other References:
See also references of EP 2772511A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
Download PDF:
Claims:
Previous Patent: RUBBER COMPOSITION AND STUDLESS TIRE
Next Patent: RUBBER COMPOSITION AND PNEUMATIC TIRE
Next Patent: RUBBER COMPOSITION AND PNEUMATIC TIRE