SILICA REINFORCED RUBBER COMPOSITION WITH COMBINATION OF FUNCTIONALIZED ELASTOMER, LIQUID POLYMER AND RESIN AND TIRE WITH TREAD THEREOF
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United States of America Patent
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Jun 21, 2012
app pub date -
Nov 9, 2011
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Dec 21, 2010
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The invention relates to a silica reinforced rubber composition comprised of low Tg polybutadiene, particularly high cis 1,4-polybutadiene or high trans 1,4-polybutadiene with or without functional groups, and high Tg styrene/butadiene elastomers, particularly functionalized styrene/butadiene, elastomers, together with high Tg liquid unsaturated conjugated diene-based polymer, particularly styrene/butadiene polymer, which can also be functionalized, and high glass transition or softening point temperature (Tm or Tg) resins, particularly high Tg styrene/alpha methylstyrene resin. The invention relates to a tire having a tread comprised of such rubber composition.
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