RUBBER COMPOSITION FOR PNEUMATIC TIRE TREAD FOR HEAVY LOAD, AND PNEUMATIC TIRE FOR HEAVY LOAD
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United States of America Patent
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Issued Date -
Sep 6, 2012
app pub date -
Feb 3, 2012
filing date -
Mar 4, 2011
priority date (Note) -
Abandoned
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Abstract
A rubber composition for a pneumatic tire tread for heavy load, comprising a rubber component, and a carbon black, the carbon black satisfies (1) the carbon black has a dibutyl phthalate (DBP) absorption number of 90 to 180 mL/100 g, (2) the difference between the BET specific surface area (BET5) [unit: m2/g] of the carbon black and the external specific surface area (STSA) [unit: m2/g] thereof satisfies the following: 5
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