Title:
RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2012/147972
Kind Code:
A1
Abstract:
The present invention provides a rubber composition having improved low-heat-release properties and containing: a rubber component (A) comprising 90-100 mass% of at least one type of diene rubber synthesized by solution polymerization and 0-10 mass% of another diene rubber; silica (B) having an n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area measured in compliance with the method described by ASTM D3765-92 of less than 140 m2/g; a silane coupling agent (C) that is a polysulfide compound and/or a thioester compound; and a vulcanization accelerator (D). The rubber composition is characterized by the average aggregate surface area (nm2) of the silica of the rubber composition after vulcanization being no greater than 3100.
Inventors:
HORIE SATOSHI (JP)
IGARASHI TAKAAKI (JP)
IGARASHI TAKAAKI (JP)
Application Number:
PCT/JP2012/061486
Publication Date:
November 01, 2012
Filing Date:
April 27, 2012
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
HORIE SATOSHI (JP)
IGARASHI TAKAAKI (JP)
HORIE SATOSHI (JP)
IGARASHI TAKAAKI (JP)
International Classes:
C08L9/00; C08K3/04; C08K3/36; C08K5/548
Domestic Patent References:
| WO2010126095A1 | 2010-11-04 | |||
| WO2008123306A1 | 2008-10-16 | |||
| WO2004000930A1 | 2003-12-31 |
Foreign References:
| JP2011026380A | 2011-02-10 | |||
| JP2002521515A | 2002-07-16 | |||
| JP2002521516A | 2002-07-16 | |||
| JP2003530443A | 2003-10-14 | |||
| JP2003523472A | 2003-08-05 | |||
| JP2002521515A | 2002-07-16 | |||
| JP2002521516A | 2002-07-16 | |||
| JP2003530443A | 2003-10-14 | |||
| JP2003523472A | 2003-08-05 | |||
| JP2009256576A | 2009-11-05 | |||
| JP2010031260A | 2010-02-12 | |||
| JP2010248422A | 2010-11-04 | |||
| JP2010248423A | 2010-11-04 |
Other References:
See also references of EP 2703439A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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Claims: