Abstract: Rubber composition comprising at least one diene elastomer, one reinforcing filler and one 1,2-cyclohexanedicarboxylate diester plasticizer corresponding to the formula (R hydrocarbon radical): The invention also relates to the use of such a composition in the manufacture of a tyre or of a tyre semi-finished product made of rubber, in particular of a tyre tread exhibiting an improved wet grip, without adversely affecting its other properties; it also relates to the tyres and semi-finished products themselves and to a plasticizing system comprising, in combination, the said diester plasticizer and a plasticizing hydrocarbon resin, the glass transition temperature (Tg) of which is greater than 0° C.

Abstract: The invention concerns a process for obtaining credits for the emission of greenhouse gases produced by the circulation of a vehicle powered by a heat engine, in which: in a first stage, means are identified that can contribute towards a variation of the greenhouse gas emissions produced due to the circulation of the vehicle, in a second stage, the relation establishing that variation is determined, in a third stage, a certifying body guarantees the variation of the greenhouse gas emissions produced due to the circulation of the vehicle and related to the said means, in a fourth stage, an organization determines the attributable greenhouse gas emission credit.

Abstract: A process for preparing, in one step, a diene block copolymer, of which at least one of these blocks is constituted of a polyether, the number-average molecular weight of which is approximately from 100 to 5000 g/mol, and at least one other of these blocks is constituted of a diene elastomer. The process according to the invention allows a high degree of grafting of the polyether to the polymer chains. Also disclosed is a reinforced rubber composition, especially intended for the manufacture of tires, comprising such a block copolymer which is intended to interact with the reinforcing filler. Such a rubber composition has improved hysteresis properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state.

Abstract: A process for preparing a functionalized or unfunctionalized diene block copolymer comprising at least one polyether block of number-average molecular weight approximately from 150 to 5000 g/mol linked to at least one block constituted of a diene elastomer via at least one silicon atom. The process allows a high degree of grafting of the polyether to the polymer chains. Also disclosed is a reinforced rubber composition, especially intended for the manufacture of tires, comprising such a diene block copolymer which is intended to interact with the reinforcing filler. Such a rubber composition has improved hysteresis properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state.

Abstract: A tire comprising at least two working layers and at least one layer of circumferential reinforcing elements. The layer of circumferential reinforcing elements comprises at least a central part and two axially exterior parts, the elastic modulus of the rubber compound with which the circumferential reinforcing elements of the central part are coated being less than the modulus of the rubber compound with which the circumferential reinforcing elements of the axially exterior parts are coated.

Abstract: A method of depositing a solute (34) on a metal thread (4), comprising the steps of: depositing a liquid solution (3), formed from a volatile solvent and said solute (34), on the thread (4); and then rapidly raising the temperature of the thread (4) to a temperature above the vaporization temperature of the solvent so as to vaporize the solvent placed in contact with the surface of said thread (4) and to form vapour bubbles (32) which, by expanding, generate a pressure pulse that ejects the liquid (33) remaining on the periphery of the thread.

Abstract: A core (N) defining at least partially a manufacturing form whose receiving surface (S), which is of essentially toroidal appearance, is designed to receive directly, by winding, profiles (B) in the form of contiguous bands forming the inside surface of a tire, comprising a plurality of segments (10, 10d, 10i), each having transverse faces (110d, 111d, 110i, 111i), said segments being circumferentially adjacent and located side by side, bearing against each other via their transverse faces, in which core the connecting radius (r) between the transverse face and the receiving surface (S) of a segment (10d, 10i) is between 0.8 mm and 1.5 mm, along all or part of the length of the edge formed by the intersection of these two surfaces.

Abstract: An extruded profiled element, based on a cross-linkable rubber composition, is delimited in width by two lateral faces which connect radially inner and outer faces to one another for the tread. A conducting element is provided in the profiled element to connect the inner face electrically to the outer face between the lateral faces and all along the length of the profiled element. The remainder of the profiled element is based on an electrically insulating material. When the profiled element is viewed in cross-section, the conducting element has a layered structure including electrically conducting layers which are essentially concentric and which have a curvature towards at least one of the inner and outer faces, with at least one of the layers emerging at the surface of the outer face.

Abstract: The object of the present invention is to provide a method for producing a resin microparticle aqueous dispersion, which can produce monodisperse resin microparticles, does not cause clogging by a product, does not require a high pressure, and has ahighproductivity. Thus, providedisamethodforproducing a resin microparticle aqueous dispersion, wherein a fluid having at least one kind of resin dissolved in a solvent with which a resin is soluble and compatible and a fluid of an aqueous solvent join together in a thin film fluid formed between processing surfaces arranged opposite so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby resin microparticles are obtained in the thin film fluid by way of separation/emulsification.

Abstract: A carcass reinforcement for a tire which is intended to bear heavy loads, comprising a composite fabric which comprises a rubber composition of reduced hysteresis and metal cables reinforcing the composition. The elastomeric matrix thereof comprises natural rubber or a synthetic polyisoprene in a majority proportion, and a reinforcing filler comprising a carbon black which meets all of the following conditions: (i) 45?CTAB specific surface area in m2/g (in accordance with Standard ASTM D3765-80)?70, (ii) 45?BET specific surface area in m2/g (in accordance with Standard ASTM D4820-93)?70, (iii) 45?iodine adsorption index IA in mg/g (in accordance with Standard ASTM D1510-81)?70, (iv) ratio (BET surface area/index IA)?1.07, (v) 115?DBP structure value in ml/100 g (in accordance with Standard ASTM D2414-93)?170, (vi) 85 nm?Stokes diameter dst in nm?145, where dst is the diameter of aggregates corresponding to the maximum frequency of the Stokes diameters in a distribution of aggregates, and (vii) D50/dst?0.

Abstract: A composition having a reduced hysteresis which is usable in a crown reinforcement for a heavy-vehicle tire, includes an elastomeric matrix comprising natural rubber or a synthetic polyisoprene in a majority proportion, and a reinforcing filler comprising a carbon black, where the carbon black fulfills the following conditions: (i) 45?CTAB specific surface area in m2/g?70, (ii) 45?BET specific surface area in m2/g?70, (iii) 45?iodine adsorption index IA in mg/g?70, (iv) ratio (BET surface area/index IA)?1.07, (v) 115?DBP structure value in ml/100 g?170, (vi) 85 nm?Stokes diameter dst in nm?145, where dst is the diameter of aggregates corresponding to the maximum frequency of the Stokes diameters in a distribution of aggregates, and (vii) D50/dst?0.0090·CTAB+0.

Abstract: The manufacturing device comprises a rotary distributor 6 in rotation about a rotation axis R, the rotary distributor comprising at least one elbowed tube 61, the elbowed tube having a corridor for receiving the wire on the radially internal side and forming output guidance on the externally radial side. The device comprises a member for conveying to the distributor comprising a tubular portion 53 substantially perpendicular to the rotation axis R, a space in the radial direction being provided between the tubular portion 53 and the elbowed tube 61. A knife 7 is disposed in the space between the rotary distributor and the conveying member. The conveying member and the distributor are coupled and both rotary, the knife 7 being mounted on a knife holder 70 for purposes of adjustment and whose rotation is locked during cutting.

Abstract: Method of applying a layer of material (25, 26) to the inner wall of a cycle tyre (20) in the form of a torus, with an inner wall (28) and an outer wall (29) and having a crown (22) extended by two sidewalls (21), two beads (23a, 23b) and two bead wires (30a, 30b) placed in said beads, said tyre having a given nominal inflation pressure, which comprises the following steps: the tyre (20) is turned inside-out so as to bring the inner wall (28) to the outside of the torus and the outer wall (29) to the inside of the torus; the outer torus wall (29) of the tyre is extended by applying an internal inflation pressure to said outer wall (29) above the nominal inflation pressure of said tyre; the layer of material (25, 26) is applied to the inner wall (28) of the tyre (20); and the tyre (20) is turned inside-out so as to bring the inner wall (28) and the outer wall (29) back into their initial positions.

Abstract: A suspension device (1) for suspending a wheel (2) with respect to the body (8) of a vehicle. The device allows a substantially vertical suspension movement and allows the wheel carrier (3) to move in terms of camber with respect to the body of the vehicle. The device comprises a slide (5) and a lower arm. The slide comprises an upper part (52) and a lower part (51) which can move one with respect to the other, the upper part being connected to the body and the lower part being connected to the wheel carrier. The device further comprises a rocker (4) articulated in the camber plane, on the one hand, to the lower arm and, on the other hand, via a link (7) to the wheel carrier, the rocker further being articulated in the camber plane to the lower part of the slide.

Abstract: A purge valve for a mounted assembly for a vehicle consisting of a wheel comprising a rim and of a tire, the valve comprising a body associated with the rim and a piston able to move with respect to the body between a closed position and a purge position and the valve being normally closed. The opening of the valve is obtained by the moving of the piston into the space radially external to the rim, the opening being obtained by action of a control force on the piston, exerted from the space radially internal to the rim, and provided by compressed air led from the space radially internal to the rim to the radially interior surface of the piston and the compressed air led from the space radially internal to the rim to the radially interior surface of the piston being at a pressure lower than or equal to that of the mounted assembly.

Abstract: An apparatus and method for reducing the magnitude of multiple harmonics of uniformity characteristics in a cured tire is claimed. A signal is generated which indicates the magnitude of the uniformity characteristic. A ring containing multiple plates is utilized to permanently deform portions of the carcass reinforcing member of the tire at locations indicated by the signal. The configuration of the plates is automatically determined based on the tire radial force variation waveform and the number of plates used.

Abstract: The invention relates to a support for a component for monitoring a tire, of the type intended to be secured to a wheel and tire system and comprising a support for securing the component in which the support has a component retaining force which is an increasing function of the pressure of the medium surrounding the support.

Abstract: Tire having a tread, sidewalls axially and radially extending towards the inside of the tread, the tread having a running surface, intended to be in contact with the ground during running, and axially lateral faces on either side of the tread, this tire having, furthermore, at least on one of the sidewalls and near the tread, a circumferential rib intended to modify the height of expelled water in the transverse direction (corresponding to a direction parallel to the rotation axis of the tire) in the case of the tire running on wet ground. The circumferential rib comprises a deflector device for deflecting the stream of expelled water in the case of the tire running on water-covered ground, this deflector device being formed from a plurality of protuberances projecting from the circumferential rib and being arranged in an oblique direction with respect to the transverse direction.