Abstract: A tyre for vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one layer of elastomeric material applied in a radially inner position with respect to the tread band; in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.

Abstract: A tyre for motor vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one elastomeric material layer arranged between the carcass structure and the belt structure in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates having nanometric dimensions.

Abstract: A method is described for the preparation of aryl-pyridine compounds of formula (I) by cross-coupling reaction, promoted by catalytic systems based on palladium or nickel between compounds of formula (II) and (III) in which: -Met represents Mg or Zn, —Y represents Cl, Br, I or acetoxy, —Z represents I, Br, Cl, triflate, sulphonate, phosphate, —R1, R2, R3, R4, which are the same as one another or different, represent hydrogen, a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or R1 and R2 and/or R3 and R4, taken together, form a C3-C8 ring, an aryl and/or a heteroaryl, -A represents —COR5 where R5 represents hydrogen, a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or -A represents —CRs5(OR6)(OR7) where R5 has the meaning described above and R6 and R7, which are the same as one another or different, represent a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or R6 and R7, joined together, represent a C1-C8 alkyl or alkenyl.

Abstract: A tire including at least one structural element includes a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including: (a) 100 phr of at least one elastomeric polymer; (b) 0.1 phr to 15 phr, preferably 0.3 phr to 10 phr, of at least one methylene donor compound: c) 0.4 phr to 20 phr, preferably 0.8 phr to 15 phr of at least one methylene acceptor compound; (d) 1 phr to 50 phr, preferably 2 phr to 40 phr, more preferably 4 phr to 30 phr, of at least one layered material, the at least one layered material having an individual layer thickness of 0.2 nm to 30 nm, preferably 0.3 nm to 15 nm, more preferably 0.

Abstract: Method for producing a crosslinkable elastomeric composition including: (a) at least one first elastomeric polymer; (b) at least one layered material having an individual layer thickness of 0.01 nm to 30 nm, preferably of 0.

Abstract: Tire including at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition includes: (a) 100 phr of at least one diene elastomeric polymer; (b) 5 phr to 120 phr, preferably 10 phr to 80 phr, more preferably 20 phr to 50 phr, of at least one layered material modified with at least one alkyl ammonium or alkyl phosphonium salt, the layered material having an individual layer thickness of 0.01 nm to 30 nm, preferably 0.05 nm to 15 nm, more preferably 0.1 nm to 2 nm; (c) 0.05 phr to 2 phr, preferably 0.1 phr to 1 phr, more preferably 0.2 phr to 0.5 phr, of at least one N-acyl-sulfenyl amide; and (d) 0.3 phr to 5 phr, preferably 0.5 phr to 4 phr, of least one organic or inorganic acid or a derivative thereof selected from: carboxylic acids, phosphoric acids, sulfonic acids, boric acids, or derivatives thereof. Preferably, the at least one structural element is selected from bead filler, sidewall insert, treat underlayer, tread base.

Abstract: Process for manufacturing tires includes the following steps: forming at least one layer including a crosslinkable elastomeric material on an outer surface of a toroidal support the shape of which substantially matches that of the inner surface of the tire; manufacturing a green tire on the toroidal support bearing the at least one layer, the green tire including at least one structural element including a crosslinkable elastomeric material; wherein one crosslinkable elastomeric material of the at least one layer includes a crosslinkable elastomeric composition including at least one sulfur-curable elastomeric polymer and at least one compound having the following general formula (I): A-(S)p—B wherein: p is an integer of 2 to 10; and A and B, which may be the same or different from each other, represent a group having the following general formula (II):

Abstract: A tire includes: a carcass structure including at least one carcass ply, of a substantially toroidal shape, having opposite lateral edges associated with respective right-hand and left-hand bead structures, the bead structures including at least one bead core and at least one bead filler; a belt structure applied in a radially external position with respect to the carcass structure; a tread band radially superimposed on the belt structure; a pair of sidewalls applied laterally on opposite sides with respect to the carcass structure; at least one layer including a crosslinked elastomeric material having air barrier properties, wherein the crosslinked elastomeric material is obtained by crosslinking a crosslinkable elastomeric composition including: (a) 10 phr or 100 phr, preferably 20 phr to 60 phr, of at least one butyl rubber; (b) 0 phr to 90 phr, preferably 40 phr to 80 phr, of at least one diene elastomeric polymer; (c) 5 phr to 120 phr, preferably 15 phr to 90 phr, of at least one reinforcing filler; (d)

Abstract: A tire, including a carcass structure, includes at least one carcass ply of a substantially toroidal shape, having opposite lateral edges associated with respective right-hand and left-hand bead structures, the bead structures including at least one bead core and at least one bead filler; a belt structure applied in a radially external position with respect to the carcass structure; a tread band radially superimposed on the belt structure; a pair of sidewalls applied laterally on opposite sides with respect to the carcass structure; and at least one layer including a crosslinked elastomeric material applied in a radially inner position with respect to the carcass structure.

Abstract: Tire having at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition containing (a) 100 phr of at least one diene elastomeric polymer; (b) 1 phr to 50 phr, preferably 2 phr to 40 phr, and more preferably 5 phr to 30 phr, of at least one layered material having an individual layer thickness of 0.01 nm to 30 nm, preferably 0.05 nm to 15 nm; (c) 0.1 phr to 15 phr, preferably 0.3 phr to 10 phr, of at least one methylene donor compound; and (d) 0.4 phr to 20 phr, preferably 0.8 phr to 15 phr of at least one methylene acceptor compound. Preferably, the at least one structural element is selected from bead filler, sidewall insert tread underlayer, or tread base.

Abstract: Tyre for vehicle wheels having a carcass structure shaped in a substantially toroidal configuration, the opposite lateral edges of which are associated with respective right-hand and left-hand bead wires to form respective beads; a belt structure applied in a radially external position with respect to the carcass structure; a tread band radially superimposed on the belt structure; at least one layer of crosslinked elastomeric material applied in a radially internal position with respect to the tread band; a pair of sidewalls applied laterally on opposite sides with respect to the carcass structure, wherein the at least one layer of crosslinked elastomeric material has a dynamic elastic modulus, measured at 70° C., not lower than 20 MPa, preferably 25 MPa to 50 MPa; a ratio between tensile modulus at 100% elongation and tensile modulus at 10% elongation not lower than 1.5, preferably 2 to 5.

Abstract: A method is described for the preparation of aryl-pyridine compounds of formula (I) by cross-coupling reaction, promoted by catalytic systems based on palladium or nickel between compounds of formula (II) and (III) in which:—Met represents Mg or Zn,—Y represents Cl, Br, I or acetoxy,—Z represents I, Br, Cl, triflate, sulphonate, phosphate,—R1, R2, R3, R4, which are the same as one another or different, represent hydrogen, a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or R1 and R2 and/or R3 and R4, taken together, form a C3-C8 ring, an aryl and/or a heteroaryl,—A represents —COR5 where R5 represents hydrogen, a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or—A represents —CRs5(OR6)(OR7) where R5 has the meaning described above and R6 and R7, which are the same as one another or different, represent a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or R6 and R7, joined together, represent a C1-C8 alkyl or alkenyl.