Rubber composition and tire

The present invention provides rubber compositions and tires which provide improved overall performance in terms of wet grip performance and dry grip performance. Included is a rubber composition having a hardness that reversibly changes with water, satisfying the relationships (1) and (2) below, an...

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Bibliographische Detailangaben
Hauptverfasser:	Mabuchi, Takahiro, Nakahata, Shoko, Washizu, Kensuke
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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:	The present invention provides rubber compositions and tires which provide improved overall performance in terms of wet grip performance and dry grip performance. Included is a rubber composition having a hardness that reversibly changes with water, satisfying the relationships (1) and (2) below, and having a stress at break of 8.0 MPa or more,Hardness when dry−Hardness when water-wet≥1 (1)wherein each hardness represents the JIS-A hardness at 25° C. of the rubber composition,0.90≤Volume when water-wet/Volume when dry≤1.01 (2)wherein each volume represents the volume at 25° C. of the rubber composition.