Modified conjugated diene polymer, modified rubber composition comprising same, and method for producing modified conjugated diene polymer
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United States of America Patent
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Aug 8, 2017
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Mar 9, 2017
app pub date -
Jul 20, 2015
filing date -
Jul 30, 2014
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Abstract
Disclosed are a method of preparing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer prepared thereby, and a rubber composition and a tire, including the modified conjugated diene-based polymer. The method of preparing the modified conjugated diene-based polymer includes (a) polymerizing a vinyl aromatic monomer and a conjugated diene monomer using an organo-alkali metal compound in the presence of a hydrocarbon solvent, thus forming an active polymer having an alkali metal end and (b) coupling or linking the active polymer having the alkali metal end with a compound represented by Chemical Formula 1.
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