RUBBER COMPOSITION FOR TIRES

Provided is a rubber composition for tires. From 35 parts by mass to 60 parts by mass of carbon black having a CTAB adsorption specific surface area of less than 70 m2/g and from 3 parts by mass to 30 parts by mass of silica having a CTAB adsorption specific surface area of less than 180 m2/g are bl...

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Bibliographische Detailangaben
Hauptverfasser:	OZAKI, Makoto, SHIMIZU, Katsunori
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	Provided is a rubber composition for tires. From 35 parts by mass to 60 parts by mass of carbon black having a CTAB adsorption specific surface area of less than 70 m2/g and from 3 parts by mass to 30 parts by mass of silica having a CTAB adsorption specific surface area of less than 180 m2/g are blended per 100 parts by mass of a rubber component containing 50 mass % or more of natural rubber and from 10 mass % to 40 mass % of butadiene rubber. The butadiene rubber uses an unmodified butadiene rubber having a cis-1,4 bond content of 97% or more, a Mooney viscosity ML1+4 at 100° C. of 45 or more, and a ratio Tcp/ML1+4 of a 5 mass % toluene solution viscosity Tcp (unit: cps) at 25° C. to the Mooney viscosity ML1+4 ranging from 2.0 to 3.0.