Pneumatic Tire Having a Lightweight Crown Reinforcement

According to the invention, the reinforcing elements of the working crown layers (41, 43) are metal cords having a diameter of less than 1.3 mm, at least one thread of each metal cord of at least one working crown layer is of at least UHT grade, the tensile elastic modulus at 10% elongation of at le...

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Bibliographische Detailangaben
Hauptverfasser:	DEGEORGES, Agnès, SALGUES, Nathslie, LARDJANE, Aurore
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS RELATED TO TYRES PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	According to the invention, the reinforcing elements of the working crown layers (41, 43) are metal cords having a diameter of less than 1.3 mm, at least one thread of each metal cord of at least one working crown layer is of at least UHT grade, the tensile elastic modulus at 10% elongation of at least the radially outermost calendering layer of at least the radially outermost working crown layer (43) is less than 8.5 MPa and at least said radially outermost calendering layer of at least the radially outermost working crown layer (43) has a macrodispersion Z value of greater than 85.