Compagnie Generale Des Etablissements Michelin

Emmanuel Joulin

Luc Bestgen

José-Carlos Araujo Da Silva

Julien Destraves

Philippe Mansuy

Vincent Estenne

William License

Arnaud Verleene

Patrick Dayet

Laurent Couturier

Pierre Guinault

Sebastien Fredon

Jean-Luc Guerbert-Jubert

Orel Fournier

Jean-louis Marchal

Séverine Glibert

A tire fitted with a transponder comprises: a crown comprising a crown reinforcement having an axial end at each of its edges, connected at each of its axial ends by a sidewall to a bead having an interior end; a carcass reinforcement layer formed of parallel reinforcers, which is anchored in each bead around a bead wire to form a main part and a turn-up; and the transponder comprising a dipole antenna consisting of a spring defined by a pitch P and a diameter D. A ratio between the pitch (P) and the diameter (D) for a loop of a first region of the spring is greater than 0.8, and the transponder is situated axially on the outside of an interior end of the bead and radially between the upper end of the bead wire and the axial end of the crown reinforcement.

Tire comprising a radiofrequency transponder

Airplane tire tread (), having an axial width L, comprises a middle part () having an axial width Lat least equal to 50% and at most equal to 80% of L and composed of a middle rubber composition, and two lateral parts (), positioned axially on either side of the middle part (), each having an axial width (L, L) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer comprises ethylene units and diene units comprising a carbon-carbon double bond, which units are distributed randomly within the first diene elastomer, the ethylene units representing at least 50 mol % of all the monomer units of the first diene elastomer.

Tread for an aircraft tire

An aeroplane tire, and, in particular, the tread thereof. The tread (), having an axial width L, comprises a middle part () having an axial width Lat least equal to 50% and at most equal to 80% of the axial width L of the tread and composed of a middle rubber composition, and two lateral parts (), positioned axially on either side of the middle part (), each having an axial width (L, L) at least equal to 10% and at most equal to 25% of the axial width L of the tread and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer is a terpolymer of ethylene, of an &#x3b1;-olefin and of a non-conjugated diene.

Airplane tire tread (), having an axial width L, comprises a middle part () having an axial width Lbetween 50% and 80% of L and composed of a middle rubber composition, and two lateral parts (), positioned axially on either side of middle part (), each having an axial width (L, L) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first middle part diene elastomer ('FMPDE'), at most 70 phr of a middle part reinforcing filler ('MPRF') and a crosslinking system. FMPDE is a terpolymer of ethylene, of an &#x3b1;-olefin and of a non-conjugated diene. The FLPDE lateral rubber composition of each lateral part comprises at least 50 phr of a first lateral part diene elastomer, a lateral part reinforcing filler content at least equal to the MPRF and a crosslinking system. The FLPDE is a terpolymer of ethylene, of an &#x3b1;-olefin and of a non-conjugated diene.

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Clermont-Ferrand, France

Emmanuel Joulin