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Patent Searching and Data


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 (1-1 Kyobashi 3-chom, Chuo-ku Tokyo 40, 〒1048340, JP)
TSUJI Takanori (1-1 Kyobashi 3-chom, Chuo-ku Tokyo 40, 〒1048340, JP)
Application Number:
JP2017/034174
Publication Date:
March 29, 2018
Filing Date:
September 21, 2017
Export Citation:
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Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome Chuo-ku Tokyo, 40, 40, 〒1048340, JP)
International Classes:
C08L15/00; B60C1/00; C08K7/26; C08L7/00; C08L57/02; C08L65/00
Foreign References:
JP2009263587A2009-11-12
JP2014213836A2014-11-17
JP2013142108A2013-07-22
JP2013245306A2013-12-09
Attorney, Agent or Firm:
SUGIMURA Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigasek, Chiyoda-ku Tokyo 13, 〒1000013, JP)
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