STYRENE-BUTADIENE COPOLYMERS, METHOD OF PREPARING THE SAME AND ULTRA HIGH PERFORMANCE TIRES

PURPOSE: A styrene-butadiene copolymer is provided to have excellent surface frictional characteristic and to have balanced rotation resistance, abrasion resistance, and silica processability. CONSTITUTION: A styrene-butadiene copolymer includes a reaction product of a continuous solution polymeriza...

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Hauptverfasser:	YOON, DU WEON, LEE, SOO YONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE: A styrene-butadiene copolymer is provided to have excellent surface frictional characteristic and to have balanced rotation resistance, abrasion resistance, and silica processability. CONSTITUTION: A styrene-butadiene copolymer includes a reaction product of a continuous solution polymerization from a styrene-based monomer and a butadiene-based monomer, has a Mooney viscosity of 48-58 ML(1+4)/100 °C after adding a process oil, has a styrene content of 34-38 wt%, and has a vinyl content of 24-28 wt%. The continuous solution polymerization uses 0.01-0.05 phm of alkyl lithium as a main catalyst and 0.005-0.25 phm of dibutyl magnesium as a cocatalyst.