Title:
RUBBER COMPOSITION FOR TIRE TREAD, TIRE TREAD, AND TIRE
Document Type and Number:
Japanese Patent JP2019099746
Kind Code:
A
Abstract:
To provide a rubber composition for tire tread capable of providing a tire tread excellent in balance of durability such as abrasion resistance, cutting resistance and tear resistance, and a rolling resistance reduction, the tire tread and a tire, excellent in balance of durability such as abrasion resistance, cutting resistance and tear resistance, and a rolling resistance reduction.SOLUTION: There is provided a rubber composition for tire tread containing a rubber component (A) containing a natural rubber (A1) and a polybutadiene rubber (A2) having cis 1,4-binding amount of 90% or more, carbon black (B) having CTAB specific surface area of 100 to 150 m/g, and silica (C) having CTAB specific surface area of 200 m/g of less than 10 pts.mass based on 100 pts.mass of the rubber component (A), and having a ratio of the silica (C) in total amount of the carbon black (B) and the silica (C) of 0.1 to 10 mass% and the natural rubber (A1):the polybutadiene rubber (A2)=30:70 to 70:30 by mass ratio.SELECTED DRAWING: None
Inventors:
HORIUCHI NATSUKI
Application Number:
JP2017234571A
Publication Date:
June 24, 2019
Filing Date:
December 06, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C08L7/00; B60C1/00; C08K3/04; C08K3/36; C08K5/24; C08L9/00
Domestic Patent References:
| JP2011057967A | 2011-03-24 | |||
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| JP2016108515A | 2016-06-20 |
Attorney, Agent or Firm:
Tamotsu Otani
Yoshio Takizawa
Kenichi Hirasawa
Mizutani Taiji
Yoshio Takizawa
Kenichi Hirasawa
Mizutani Taiji