RUBBER COMPOSITION FOR TIRE TREAD

RUBBER COMPOSITION FOR TIRE TREAD

PROBLEM TO BE SOLVED: To obtain a rubber composition for tire tread having excellent rolling resistance and wear resistance. SOLUTION: This tire rubber composition for incompatible tire tread is obtained by compounding 100 pts.wt. of a rubber comprising 50-90 pts.wt. of an SBR modified with a modify...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AMINO NAOYA, AIBE SADAFUMI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
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
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To obtain a rubber composition for tire tread having excellent rolling resistance and wear resistance. SOLUTION: This tire rubber composition for incompatible tire tread is obtained by compounding 100 pts.wt. of a rubber comprising 50-90 pts.wt. of an SBR modified with a modifying agent such as a compound containing a group of the formula -CX-N= (X is oxygen or sulfur), benzophenone, thiobenzophenone, an isocyanate compound and/or a halogenated tin compound and 40-10 pts.wt. of a cis-BR 40 having >=90% cis-content with 30-80 pts.wt. of carbon having 70-350 m /g nitrogen specific surface area and >=105-200 ml/100 g DBP oil absorption and 5-60 pts.wt. of wet silica so as to make 40-100 pts.wt. of the total of the carbon and the silica. The SBR and the cis-BR satisfy the relation 0.0002