RUBBER COMPOSITION FOR TIRE TREADS AND PNEUMATIC TIRE
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United States of America Patent
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app pub date -
Mar 18, 2016
filing date -
Mar 19, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A rubber composition for tire treads contains an inorganic filler containing silica and a diene rubber containing a carboxy-modified polymer. The content of the inorganic filler is from 70 to 170 parts by mass per 100 parts by mass of the diene rubber. The content of the silica is from 70 to 160 parts by mass per 100 parts by mass of the diene rubber. The carboxy-modified polymer is obtained by modifying a styrene-butadiene rubber (A) with a nitrone compound (B) having a carboxy group, and the content of the carboxy-modified polymer in the diene rubber is from 10 to 100 mass %. The content of styrene units in the styrene-butadiene rubber (A) is not less than 36 mass %. The degree of modification of the carboxy-modified polymer is from 0.02 to 4.0 mol %.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP6024781 | Mar 19, 2015 |
| WO | A1 | WO2016148296 | Mar 18, 2016 |
| CN | A | CN107250244 | Mar 18, 2016 |
International Classification(s)
- 2016 Application Filing Year
- B60C Class
- 1165 Applications Filed
- 752 Patents Issued To-Date
- 64.55 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- B60C Class
- 34.43 % this patent is cited more than
- 7 Age