Tire comprising at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising: (a) 100 phr of at least one solid elastomeric polymer having a Mooney viscosity, measured at 100 DEG C, of from 30 to 90, preferably of from 40 to 75; (b) from 3 phr to 33 phr, preferably of from 5 phr to 15 phr, of at least one liquid elastomeric polymer having a number average molecular weight (Mn) of from 1000 to 20000, preferably of from 3000 to 15000 and an amount of vinyl unsaturations in the butadiene part, of from 15% to 100%, preferably of from 30% to 90%; (c) from 5 phr to 120 phr, preferably from 20 phr to 90 phr of at least one silica reinforcing filler; (d) from 0.1 phr to 10 phr, preferably from 0.5 phr to 8 phr, of at least one coupling agent containing at least one mercapto group. Preferably, said at least one structural element is a tread band.
Tire and crosslinkable elastomeric composition
GALIMBERTI, MAURIZIO STEFANO;
2007-01-01
Abstract
Tire comprising at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising: (a) 100 phr of at least one solid elastomeric polymer having a Mooney viscosity, measured at 100 DEG C, of from 30 to 90, preferably of from 40 to 75; (b) from 3 phr to 33 phr, preferably of from 5 phr to 15 phr, of at least one liquid elastomeric polymer having a number average molecular weight (Mn) of from 1000 to 20000, preferably of from 3000 to 15000 and an amount of vinyl unsaturations in the butadiene part, of from 15% to 100%, preferably of from 30% to 90%; (c) from 5 phr to 120 phr, preferably from 20 phr to 90 phr of at least one silica reinforcing filler; (d) from 0.1 phr to 10 phr, preferably from 0.5 phr to 8 phr, of at least one coupling agent containing at least one mercapto group. Preferably, said at least one structural element is a tread band.File | Dimensione | Formato | |
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