The present invention relates to a tire cord having excellent durability while being thin in thickness, a manufacturing method thereof and a tire comprising the same.

The tire (10) comprises a crown (12) surmounted by a tread (22), two sidewalls (24), two beads (26), each sidewall (24) connecting each bead (26) to the crown (12), a carcass reinforcement (34) anchored in each of the beads (26) and extending in the sidewalls (24) as far as the crown (12). The carcass reinforcement (34) comprises one carcass ply (44) comprising carcass reinforcing elements (46) having a mean laying pitch (P) strictly greater than 1.5 mm. The carcass ply (44) comprises an elastomer matrix (54) in which the carcass reinforcing elements (46) are embedded, each carcass reinforcing element (46) comprising: one filamentary element (56), and one sheath (58) coating the filamentary element (56) and comprising at least one layer (60) of a thermoplastic polymer composition.

A tire with improved handling having a stiffening structure with a stiffening element extending continuously in the toroidal interior cavity from a crown interface connected to a radially inner face of the crown to a bead interface connected to an axially inner face of the bead. The stiffening structure is distributed circumferentially over the circumference of the tire, the axially outermost stiffening element interface is positioned, with respect to the equatorial plane (XZ), at an axial distance A at most equal to 0.45 times the axial width S, and the radially outermost stiffening element bead interface is positioned, with respect to a radially innermost point (I) of the axially inner face of the bead at a radial distance B at most equal to 0.5 times the radial height H.

A tire (10) comprises a crown (12) comprising a tread (20), a crown reinforcement (14), two sidewalls (22), two beads (24), with each sidewall (22) connecting each bead (24) to the crown (12), the crown reinforcement (14) extending into the crown (12). The tire (10) comprises a radial carcass reinforcement (32) anchored in each of the beads (24) and extending into the sidewalls (22), and the crown reinforcement (14) is radially inserted between the carcass reinforcement (32) and the tread (20). The tire (10) has a sidewall height that is greater than or equal to 110 mm and a load index that is greater than or equal to 94. The carcass reinforcement (32) comprises a single carcass ply (34) comprising at least one reinforcer element comprising an assembly formed by: a multifilament strand made of aromatic polyamide or aromatic co-polyamide; and a multifilament strand made of polyester.

A tyre (1) for motorcycle wheels is described comprising a carcass structure (2), a belt structure (6) applied at a radially outer position with respect to the carcass structure (2), and a tread band (8) applied at a radially outer position with respect to the belt structure (6), wherein the carcass structure (2) comprises a carcass layer (2a) which comprises a plurality of reinforcing cords comprising one or more textile yarns comprising a plurality of textile filaments made of a material selected from rayon, PET, PEN, and PEEK, and/or hybrid reinforcing cords comprising a plurality of textile filaments made of a combination of two or more of rayon, PET, PEN, and PEEK, embedded in a vulcanized elastomeric material having a dynamic elastic modulus E measured at 70 C. and 100 Hz comprised between 5.0 and 9.0 MPa and a tandelta measured at 70 C. and 100 Hz comprised between 0.130 and 0.170. The vulcanized elastomeric material also comprises a white silica-based reinforcing filler and a residual unreacted amount of a silane coupling agent of the white silica-based reinforcing filler, expressed as an amount of silicon measured by ICP-OES, greater than or equal to 70 ppm.

In a tire, a point (Au) on a side profile at the same position in a radial direction as an end portion of an innermost layer of a belt layer is defined in a cross-sectional view in a meridian direction. A distance (Hu) from a maximum width position (Ac) to the point (Au) in the radial direction is defined. A point (Au) on the side profile at the radial position of 70% of the distance (Hu) from the maximum width position is defined. A point (An) on the side profile at the radial position of 35% of the distance (Hu) from the maximum width position is defined. A radius of curvature (RP) (mm) of an arc passing through the maximum width position, the point (Au), and the point (An) with respect to a cross-sectional height (SH) (mm) is in a range 0.20RP/SH1.80.

An aircraft radial tire, having a radial carcass reinforcement with a plurality of carcass layers made up of textile reinforcing elements oriented substantially radially, which is to say making an angle of between 75 and 105 with the circumferential direction, the radial reinforcing elements of the carcass layers are composite cords having at least one aramid filament yarn and of which the rupture force is FR, measured in accordance with the standard D885/D885M-10A (2014) and these elements exhibit a deformation at least equal to 4.6% and at most equal to 6.5% for an applied force equal to FR/4. The tenacity of these reinforcing elements is at least equal to 80 daN/mm.sup.2, and the linear density of the aramid filament yarn or yarns exceeds 210 tex.

The present disclosure is directed to providing an organic fiber cord that can maintain physical properties at high temperatures while reducing environmental load. The solution is a hybrid cord including at least two types of polyamide fibers. At least one type of polyamide fiber among the polyamide fibers includes a component derived from biomass. The hybrid cord has an average amide density of 10.5 or more.

A motorcycle tyre, comprising a radial carcass structure (2) and a tread band (8) applied at a radially outer position with respect to the radial carcass structure (2), wherein the radial carcass structure (2) comprises a first carcass ply (3a) and a second carcass ply (3b) including a first plurality of textile reinforcing cords (30) and a second plurality of textile reinforcing cords (32), respectively, wherein the first textile reinforcing cords (31) are parallel to each other and the second textile reinforcing cords (33) are parallel to each other and have a respective first and second inclination at a crown portion (8c) of the tread band (8) with respect to an equatorial plane (X-X) of the tyre, wherein said second inclination is opposite to said first inclination. The first textile reinforcing cords (31) and the second textile reinforcing cords (33) have a tenacity comprised between 0.35 cN/Tex and 1.2 cN/Tex at 2% elongation and comprised between 0.5 cN/Tex and 3 cN/Tex at 5% elongation. At least one central annular sector (8a) of the tread band (8) arranged astride of the equatorial plane (X-X) is made of a vulcanized elastomeric material having a static elastic modulus Ca3 measured at 70 C. comprised between 9.0 and 14.0, a tandelta measured at 70 C. and 10 Hz comprised between 0.120 and 0.160, and a dynamic elastic modulus F measured at 70 C. and 10 Hz comprised between 3.7 and 4.1.