Abstract: A rubber composition is based on at least an elastomeric matrix comprising at most 70 parts by weight, per hundred parts by weight of elastomer, phr, of a polyisoprene and at least 30 phr of a butadiene/styrene copolymer, the butadiene/styrene copolymer exhibiting a content of styrene units of between 20% and 40% by weight, with respect to the total weight of the butadiene/styrene copolymer, a content of trans-1,4-butadiene unit of greater than 65% by weight, with respect to the total weight of the butadiene units, a content of vinyl unit of less than 8% by weight, with respect to the total weight of the butadiene units, and a glass transition temperature of between ?60° C. and ?35° C.; from 35 to 75 phr of a carbon black exhibiting a BET specific surface of between 90 and 100 m2/g and a COAN absorption index of between 90 and 100 ml/100 g; and a crosslinking system.

Abstract: A radial aircraft tire (1), defined in three main directions, circumferential (X), axial (Y) and radial (Z), comprises a crown (2) surmounted by a tread (3), two sidewalls (4), two beads (5), each sidewall (4) connecting each bead (5) to the crown (2), a carcass reinforcement (7) that is anchored in each of the beads (5) at at least one bead wire (6) and extends in the sidewalls (4) as far as the crown (2), a crown reinforcement or belt (10) that extends in the crown (2) in the circumferential direction (X) and is situated radially between the carcass reinforcement (7) and the tread (3), said carcass reinforcement (7) having at least one ply referred to as carcass ply in the form of a rubber matrix reinforced with radially oriented reinforcing elements, referred to as radial textile reinforcers, the latter being constituted entirely or partially by textile plied yarns of nylon comprising N multifilament strands twisted together to form a helix, characterized in that: N is greater than 2; the count of each str

Abstract: Breaking energy test performance of lightweight tyres that have a good performance in terms of rolling resistance and having a nominal width at least equal to 135 mm and at most equal to 235 mm is increased. These tyres comprise two thin and lightened working layers (41, 42) comprising metal reinforcing elements (411, 421) made up of monofilaments having a linear breaking strength Rct at least equal to 300 daN/cm and at most equal to 400 daN/cm, and a single carcass layer (6) radially on the inside of the working layers. In order to improve performance in the breaking energy test, this carcass layer comprises textile reinforcing elements and has surface breaking energy at least equal to 1.75 J/cm2.

Abstract: Breaking energy test performance of lightweight tyres that have a good performance in terms of rolling resistance is increased. These tyres comprise two thin and lightened working layers (41, 42) comprising metal reinforcing elements (411, 421) having a linear breaking strength Rct at most equal to 400 daN/cm, and a single carcass layer (6) radially on the inside of the working layers. In order to successfully undergo the “breaking energy” test, this carcass layer comprises textile reinforcing elements that have an elongation at break Acc at least equal to 15%, the carcass layer having a linear breaking strength Rcc at least equal to 0.55 times the linear breaking strength of the working layers.

Abstract: A rubber composition is based on at least an elastomeric matrix comprising at most 70 parts by weight, per hundred parts by weight of elastomer, phr, of a polyisoprene and at least 30 phr of a butadiene/styrene copolymer, the butadiene/styrene copolymer exhibiting a content of styrene units of between 20% and 40% by weight, with respect to the total weight of the butadiene/styrene copolymer, a content of trans-1,4-butadiene unit of greater than 65% by weight, with respect to the total weight of the butadiene units, a content of vinyl unit of less than 8% by weight, with respect to the total weight of the butadiene units, and a glass transition temperature of between ?60° C. and ?35° C.; from 35 to 75 phr of a carbon black exhibiting a BET specific surface of between 90 and 100 m2/g and a COAN absorption index of between 90 and 100 ml/100 g; and a crosslinking system.

Abstract: A radial aircraft tire (1), defined in three main directions, circumferential (X), axial (Y) and radial (Z), comprises a crown (2) surmounted by a tread (3), two sidewalls (4), two beads (5), each sidewall (4) connecting each bead (5) to the crown (2), a carcass reinforcement (7) that is anchored in each of the beads (5) at at least one bead wire (6) and extends in the sidewalls (4) as far as the crown (2), a crown reinforcement or belt (10) that extends in the crown (2) in the circumferential direction (X) and is situated radially between the carcass reinforcement (7) and the tread (3), said carcass reinforcement (7) having at least one ply referred to as carcass ply in the form of a rubber matrix reinforced with radially oriented reinforcing elements, referred to as radial textile reinforcers, the latter being constituted entirely or partially by textile plied yarns of nylon comprising N multifilament strands twisted together to form a helix, characterized in that: N is greater than 2; the count of each str

Abstract: During the method for treating a textile reinforcing element (R), the reinforcing element (R) is exposed, at atmospheric pressure, to a plasma flow (42) generated by means of a plasma torch (26) and from a gas comprising at least one oxidizing component.

Abstract: The reinforcing element (R) comprises a surface layer (C1, C2) having a degree of crystallinity Tc and an atomic percentage of oxygen element Pc and an internal layer (C3) having a degree of crystallinity Ti and an atomic percentage of oxygen element Pi satisfying Ti/Tc?1.10, Pi/Pc<1. Each surface layer (C1, C2) and internal layer (C3) is made of polyester.