PNEUMATIC TIRE

PURPOSE:To raise friction force on the ice and snow road in particular by forming a tread section of foaming rubber which has closed cells and also specifying the hardness of the foaming rubber, average cell area, the coefficient of variation of each cell area, and cell occupation area rate. CONSTIT...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOKIEDA AKINORI, MIDORIKAWA SHINGO, MISAWA MAKOTO, KIDA AKIRA
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 VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To raise friction force on the ice and snow road in particular by forming a tread section of foaming rubber which has closed cells and also specifying the hardness of the foaming rubber, average cell area, the coefficient of variation of each cell area, and cell occupation area rate. CONSTITUTION:A pneumatic tire contains a tread section therein, which is formed of foaming rubber which has closed cells. The properties of the foaming rubber shall be specified as follows: JIS hardness at a temperature of 0 deg.C : 60 to 70, Average cell area of tread surface : 500 to 6,000m , Coefficient of variation of each cell area on the tread surface : 0.5 to 0.8, Cell occupation area rate on tread surface : 10% to 40% This serves to raise friction force on the ice and snow road without spoiling running performance on the ordinary road (dry road and wetting road) and to obtain studless tires simultaneously satisfied with several performances conflicting with each other.