Title:
RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2018/056383
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rubber composition which is capable of improving steering stability and wet performance of a tire, while reducing rolling resistance thereof. Accordingly, this rubber composition is characterized by including: a rubber component (A) including a natural rubber (A1), and a modified diene rubber (A2) having a glass transition temperature (Tg) of -50˚C or lower; a thermoplastic resin (B); and silica (C) of which the cetyltrimethylammonium bromide adsorption specific surface area (CTAB) (m2/g) and the ink bottle-like pore index (IB) satisfy the relationship in formula (Y), namely IB≤-0.36×CTAB+86.8. The rubber composition is further characterized in that the blended amount of the thermoplastic resin (B) is 10-50 parts by mass per 100 parts by mass of the rubber component (A).
Inventors:
OGASAWARA TAKUYA (JP)
TSUJI TAKANORI (JP)
TSUJI TAKANORI (JP)
Application Number:
PCT/JP2017/034174
Publication Date:
March 29, 2018
Filing Date:
September 21, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L15/00; B60C1/00; C08K7/26; C08L7/00; C08L57/02; C08L65/00
Foreign References:
| JP2009263587A | 2009-11-12 | |||
| JP2014213836A | 2014-11-17 | |||
| JP2013142108A | 2013-07-22 | |||
| JP2013245306A | 2013-12-09 |
Other References:
See also references of EP 3517569A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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