Abstract: A structurally supported non-pneumatic tyre comprises a tread, an annular band, a plurality of spokes extending transversely and radially inside the annular band, and means for connecting the plurality of spokes to a wheel, characterized in that the spokes comprise a polymeric composition based on at least one polymeric matrix comprising 50 to 70% of one or more thermoplastic polymers, the glass transition temperature (Tg) of which is within a range extending from 120 to 250° C. and 30 to 50% of one or more thermoplastic elastomers, said thermoplastic elastomer(s) being compatible with said thermoplastic polymer(s), such that the elongation at break of the mixture of these polymers is greater than or equal to the elongation at break of the thermoplastic polymer(s) alone.

Abstract: A structurally supported non-pneumatic tyre comprises a tread, an annular band, a plurality of spokes extending transversely and radially inside the annular band, and means for connecting the plurality of spokes to a wheel, characterized in that the spokes comprise a polymeric composition based on at least one polymeric matrix comprising 50 to 70% of one or more thermoplastic polymers, the glass transition temperature (Tg) of which is within a range extending from 120 to 250° C. and 30 to 50% of one or more thermoplastic elastomers, said thermoplastic elastomer(s) being compatible with said thermoplastic polymer(s), such that the elongation at break of the mixture of these polymers is greater than or equal to the elongation at break of the thermoplastic polymer(s) alone.

Abstract: A piezoelectric composite comprises a polymeric matrix and piezoelectric inorganic fillers in the form of particles which are not bound to the polymeric matrix but are dispersed in said polymeric matrix, characterized in that the polymeric matrix comprises a thermoplastic elastomer (TPE), in that the glass transition temperature, Tg, of each thermoplastic block of the thermoplastic elastomer (TPE) is lower than the lowest Curie temperature, Tc, of the piezoelectric inorganic fillers, moreover when the thermoplastic blocks have a melting point, Tm, said melting point of each thermoplastic block is also lower than the lowest Curie temperature of the piezoelectric inorganic fillers, and in that the filler content of the piezoelectric inorganic fillers is at least 5% by volume relative to the total volume of polymeric matrix. There are also a process for preparing such a piezoelectric composite, a device comprising such a composite, the use thereof and a tire comprising such a device.