Rubber composition for sidewall and pneumatic tire using the same

A rubber composition for sidewall which can prevent color change to brown and has sufficient ozone resistance and improved low heat build-up characteristics, and a pneumatic tire having sidewall comprising the rubber composition. The rubber composition comprises 5 to 150 parts by weight of carbon bl...

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Bibliographische Detailangaben
Hauptverfasser:	MURAOKA, KIYOSHIGE, YAGI, NORIKO
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A rubber composition for sidewall which can prevent color change to brown and has sufficient ozone resistance and improved low heat build-up characteristics, and a pneumatic tire having sidewall comprising the rubber composition. The rubber composition comprises 5 to 150 parts by weight of carbon black having nitrogen adsorption specific surface area of 70 to 300 m /g and 5 to 100 parts by weight of calcium carbonate based on 100 parts by weight of a rubber component comprising 20 to 70 % by weight of a natural rubber and 30 to 80 % by weight of a synthetic diene rubber.