Abstract: A continuous method for synthesizing a diene includes modifying the diene elastomer in a functionalizing device by: a kinetic model according to which the ratio of the rate constants is greater than 1, and a flow represented by a residence time distribution in the functionalizing device that is expressed according to equations 1 or 3: (i) in a functionalizing device having at least one tubular continuous reactor or having at least one cascade of at least two stirred reactors, E 1 ? ( t ) = 1 2 ? ( P ?? 1 ? t ) 1 2 ? ? - P ? ( ? 1 - t ) 2 4 ? ? 1 ? t Eq ? ? 1 (ii) in a functionalizing device that is a combination of the device (i) and of a device having at least one continuous stirred reactor, having a residence time distribution characterized by the following equation: E 2 ? ( t ) = ? ( - t ? 2 ) ? 2 Eq ? ? 2 the device (ii) having a residence time distribution characterized by the e

Abstract: The invention relates to a modified diene elastomer comprising predominantly the entity functionalized in the middle of the chain by an alkoxysilane group, optionally partially or completely hydrolysed to give silanol, bearing a tertiary amine functional group and the silicon atom of which bonds the two pieces of the chain, the chain ends of the modified diene elastomer being functionalized to at least 70 mol %, with respect to the number of moles of chain end, by an amine functional group.

Abstract: An ultrasonic treatment device includes a treatment main body, a treatment handpiece and a display control console, wherein the treatment main body is fittingly connected to the treatment handpiece; the display control console is coupled to the treatment main body via an interactive connection. A treatment handpiece is also provided for use with an ultrasound treatment device.

Abstract: Embodiments include methods for retreading a tire, which include providing a tire carcass for retreading, the tire carcass having a pre-existing tread layer including one or more voids extending into the tread layer thickness from an outer side. A bonding layer is applied along an outer side of the pre-existing tread layer, the bonding layer substantially filling the voids arranged along the outer side of the pre-existing tread layer to provide an outer surface for receiving a pre-cured tread layer. The pre-cured tread layer is applied along an outer side of the bonding layer such that the bonding layer is arranged between the pre-cured tread layer and the pre-existing tread layer. The pre-cured tread layer is bonded to the tire carcass to form a retreaded tire having a retreaded tire tread. Grooves are then formed in the retreaded tire tread along a ground-engaging, outer side of the retreaded tire tread.

Abstract: Provided is a more suitable method for producing ceramic microparticles. The present invention uses at least two types of fluids to be processed; at least one of the fluids to be processed is a fluid containing a ceramic starting material liquid that mixes and/or dissolves a ceramic starting material in a basic solvent; of the fluids aside from the ceramic starting material liquid, at least one of the fluids to be processed is a fluid containing a solvent for precipitating ceramic microparticles; and ceramic microparticles are precipitated by mixing the fluid containing the ceramic starting material liquid and the fluid containing the solvent for precipitating ceramic microparticles within a thin film fluid formed between at least two surfaces (1,2) for processing that are provided facing each other, are able to approach and separate each other, and of which one is able to rotate with respect to the other.

Abstract: Tire vulcanizing mold able to cooperate with a curing press, said mold comprising two shells each one molding a sidewall of the tire and a ring of sectors for molding the tread of the tire, each sector comprising a support and a molding lining situated radially on the inside of the support, in which ring the sectors, when the mold is in the closed position, are all in circumferential contact one with the next via the molding linings and in radial contact on the shells via the front ends of the linings each of which forms a face for contact with the shell, said supports and linings being produced in such a way that each support is able to take up the clamping force applied to the lining coming into contact with the shell when the mold is in the closed position when said clamping force at said contact face exceeds a given threshold that is lower than the plastic threshold of the lining.

Abstract: A mold for vulcanizing and molding a tire is provided herein. The tire includes a tread delimited by two sidewalls, the mold including a ring for molding the tread of the tire and two shells for molding the sidewalls. The mold includes an annular groove extending in a recessed manner in one of the shells and an insert housed in the groove, this insert having tire marking elements and being formed from a plurality of insert parts that are positioned one after another in the annular groove.

Abstract: A drum for producing a tire casing blank comprises a support and sectors forming a circumferential face of the drum. Each sector has a circumferential outer face having a contour of general trapezoidal form and is mounted so as to be movable relative to the support in a non-radial predetermined direction relative to an axis of rotation of the drum and intercepting this axis.

Abstract: A tire tread that comprises a rubber composition based on an elastomer matrix that comprises more than 50% by weight of at least one butyl rubber, on a reinforcing filler and on a plasticizing system that comprises at least one phosphoric acid ester having a glass transition temperature below ?75° C. A tire comprising such a tread has both a low rolling resistance and a strong grip on wet ground.

Abstract: A tire tread that comprises a rubber composition based on an elastomer matrix that comprises more than 50% by weight of at least one butyl rubber, on a reinforcing filler and on a plasticizing system that comprises at least one polybutene oil having a glass transition temperature below ?75° C. A tire comprising such a tread has a good compromise between the wet grip performance and the rolling resistance performance.

Abstract: A drum for building a green tire casing having: sectors that form a circumferential face of the drum, and at least one cam for controlling a radial movement of the sectors with respect to a rotation axis of the drum. The cam has two main faces and is designed such that a monotonous movement of the cam first of all causes the radial movement of some of the sectors by virtue of ramps situated on its first face without modifying a radial position of the other sectors, and then causes the radial movement of the other sectors by virtue of ramps situated on its second face, the movement of all of the sectors then being simultaneous.

Abstract: A modified diene elastomer comprises: at least 55% by weight of entity coupled by a functional group bearing a function of formula —SiOR, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, from 5% by weight to 30% by weight of star-branched entity having three elastomeric branches connected to one and the same silicon atom belonging to a functional group bearing or not bearing a function capable of interacting with a reinforcing filler, less than or equal to 15% by weight of entity functionalized at the chain end by a functional group bearing a function —Si(OR)2, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, and a content of less than or equal to 15% by weight of non-functional diene elastomer.

Abstract: Tire carrying heavy loads comprising a tread band having a plurality of grooves of transverse overall orientation, formed of at least three rubber materials: —a first material M1, in the median part of the tread band, having a secant modulus at 10% elongation measured at a temperature of 23° C. at least equal to 4.0 MPa and hysteresis losses tan(?)max greater than 0.19, —a second material M2, on the edge parts, having a secant modulus at 10% elongation, at 23° C., lower than the first material, and a hysteresis losses value tan(?)max lower than the first material and at least 0.15, —a third material M3, radially below the materials M1 and M2, having a hysteresis losses value tan(?)max lower than 0.12, —wherein first material M1 has a resistance to wear at least 15% better than the second and third materials, which have substantially the same resistance to wear.

Abstract: Sintering device comprising a laser source, the light power of which is capable of selectively melting successive layers of metal powders, and a reference plate on which the first metal powder layer is deposited and which serves as a base for the construction of an object, characterized in that the said plate comprises one or more recesses, the shape of which is determined so as to make the said recesses capable of receiving inserts of a given shape.

Abstract: Tire comprising two beads and a carcass reinforcement anchored in each bead, each bead comprising a plurality of annular reinforcing structures forming at least one anchoring alignment, parallel to a portion of the carcass reinforcement, and an additional stiffening reinforcement formed by one single alignment of at least two annular reinforcing structures and extending between a first end situated a distance H1 from the tangent to the seat-forming bead portion being 20-70% of the anchoring alignment minimum distance H0, the first end lying an axial distance L1 from the interior surface of the tire being 50-85% of the maximum axial width L0 of the bead; and a second end, the second end being radially and axially at the same level as or on the outside of the first end such that the distance LA separating the first and second ends is ?30% of the mean anchoring alignment length.