Invention Grant
US08440757B2 Rubber composition for a tire tread and pneumatic tire using the same
有权
用于轮胎胎面的橡胶组合物和使用其的充气轮胎
- Patent Title: Rubber composition for a tire tread and pneumatic tire using the same
- Patent Title (中): 用于轮胎胎面的橡胶组合物和使用其的充气轮胎
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Application No.: US12777480Application Date: 2010-05-11
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Publication No.: US08440757B2Publication Date: 2013-05-14
- Inventor: Naoki Kushida
- Applicant: Naoki Kushida
- Applicant Address: JP
- Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee Address: JP
- Agency: Thorpe North & Western LLP
- Priority: JP2009-122288 20090520
- Main IPC: C08K3/34
- IPC: C08K3/34

Abstract:
A rubber composition for a tire tread including a diene rubber component and silica and carbon black, and a pneumatic tire provided with a tread manufactured from this rubber composition, the diene rubber component including: (A) from 30 to 80 mass % of a hydroxy group-containing aromatic vinyl-conjugated diene copolymer including from 20 to 30 mass % of aromatic vinyl units and from 0.1 to 10 mass % of isoprene units, and having an amount of vinyl bonds in a conjugated diene part from 40 to 60 mol %; (B) from 10 to 50 mass % of a high-cis butadiene rubber having an amount of 90 mol % or more of cis-1,4 bonds; and (C) from 10 to 50 mass % of natural rubber; wherein a total amount of the silica and the carbon black is from 90 to 150 parts by mass per 100 parts by mass of the diene rubber component.
Public/Granted literature
- US20100294407A1 RUBBER COMPOSITION FOR A TIRE TREAD AND PNEUMATIC TIRE USING THE SAME Public/Granted day:2010-11-25
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