Rubber composition and tire having tread thereof
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United States of America Patent
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Dec 23, 2003
Grant Date -
Jun 21, 2001
app pub date -
Dec 12, 2000
filing date -
Aug 12, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rubber composition comprised of an elastomer(s) reinforced with a particulate carbon black composite, and a coupling agent. Said carbon black composite contains integral silica on the surface thereof, wherein said carbon black composite is prepared by co-precipitating carbon black and silica from a dispersion of carbon black in sodium silicate to provide integral silica domains on the outer surface of the carbon black. Said carbon black composite is further functionalized by reacting it with a trialkoxy silane. A tire having a component comprised of such rubber composition, such as, for example, a tire tread is contemplated.
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