Abstract: Adapter for a rolling assembly comprising a tire, and a rim having two rim seats and two rim flanges. The adapter has an axially inner end mounted on the rim seat and comprises an inner reinforcing element, an axially outer end that comprises an outer reinforcing element, a body that connects the two ends to form a single piece. A substantially cylindrical adapter seat is configured to receive a bead, and is situated at the axially outer end of the body. An adapter bearing face is substantially contained in a plane perpendicular to the rotation axis, and situated on the axially inner face of the axially outer end. The reinforcing element of the axially outer end is entirely situated axially outside the bearing face. The body comprises, opposite the adapter seat, an annular seat reinforcer. The inner wall of the tire is covered by a layer of a self-sealing composition.

Abstract: A method for testing a punctured tyre's resistance to a loss in pressure includes: creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure; stopping the running of the tyre; and determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture.

Abstract: Elastomer composition having a self-sealing property which can be used in particular as puncture-resistant layer in an inflatable article, based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A: elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising this elastomer composition; the puncture-resistant layer is advantageously used in combination with an airtight layer, for example based on butyl rubber or TPS elastomer, in order to form, in the inflatable article, an airtight and puncture-resistant laminate.

Abstract: A tire carcass comprises two sidewalls (2) and a crown region (3) suitable for receiving, radially externally, a tread (4), the internal surface of the sidewalls and of the crown forming an internal wall (10), and also comprises a circumferential tread support surface (6) provided with a layer of thermoplastic elastomer (TPE).

Abstract: Self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with a puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.

Abstract: A process for molding a tire elastomeric thermoplastic composite comprises a stage in which a layer of thermoplastic elastomer (TPE) is applied against one of the faces of the composite, followed by a molding stage for vulcanization of the composite and crosslinking of the layer of thermoplastic elastomer (TPE) with the neighboring layer of rubber material. The process furthermore comprises a stage consisting in applying a nonstick protective layer (12) against the thermoplastic elastomer (TPE) face intended to be in contact with the mold.

Abstract: A tire tread (4), comprising an inner face and an outer face, comprises a supporting surface (8) covered with a layer of thermoplastic elastomer (TPE).

Abstract: A layer of cellular material forms a running layer (14A) of a tread (14) in which tread pattern elements (20, 22, 26) are made. In order to form the cellular material, an uncured blank is provided with a mass of material comprising p,p?-oxybis(benzenesulphonyl hydrazide) that forms a pore-forming agent. The uncured blank is placed in a vulcanization mold (28) comprising molding elements (30, 32, 34). At least 95% of the molding elements (30, 32, 34) each satisfy the following two conditions: a) the molding element (30, 32, 34) is separated from at least one other molding element (30, 32, 34) by a distance, expressed in millimeters, of less than or equal to DM=6.85+0.0065T3, T, greater than or equal to 3 phr, being the amount of p,p?-oxybis(benzenesulphonyl hydrazide) in the mass of material intended to form the cellular material, b) the molding element (30, 32, 34) is intended to form a tread pattern element (20, 22, 26) having a depth at least equal to 80% of the thickness of the running layer (14A).

Abstract: Provided is a pneumatic tire capable of yielding excellent water-draining performance, while reducing air column resonance. This pneumatic tire (1) has a tread (3) and at least one ply (2) arranged toward the interior of the tread in the radial direction. The tread has at least one main channel (4) and a flexible fence (5) formed inside the main channel. The main channel has a bottom (413) and opposing first and second wall surfaces (411, 412). The flexible fence extends along the width of the main channel so as to block at least 70% of a cross sectional area of the main channel, and is arranged at intervals so that at least one is present in the main channel in the tread footprint when the tire rolls. A plurality of recesses having an opening that opens in the main channel are formed on the bottom, first wall surface and/or second wall surface of the main channel, the flexible fence being connected to the recess and extending into the main channel via the opening of the recess.

Abstract: A self-sealing elastomer composition that includes a diene elastomer, a hydrocarbon resin with a given softening temperature, and a liquid plasticizing agent, is manufactured according to a process that includes successive stages. In one stage, the hydrocarbon resin is incorporated in the diene elastomer by kneading the resin and the elastomer in a mixer at or up to a temperature referred to as “hot compounding” temperature, which is greater than the softening temperature of the resin, in order to obtain a masterbatch. In another stage, the liquid plasticizing agent is incorporated in the masterbatch by kneading the agent and the masterbatch in the same mixer or in another mixer, in order to obtain the self-sealing composition. The self-sealing composition then is formed dimensionally.

Abstract: A method of retreading a tire casing includes the step of disposing a cured rubber tread on a carcass with a layer of hot-melt material interposed between the tread and the carcass. The method continues with the step of rollering the tread by means of at least one roller with a width (r) that is less than a width (b) of the tread.

Abstract: A process for manufacturing a self-sealing elastomer composition, said process comprising the following steps: a masterbatch, comprising at least one diene elastomer and more than 30 phr of a hydrocarbon resin, is firstly manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding” temperature which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything in the same mixer or in a different mixer, at a temperature or up to a temperature which is kept below 100° C., in order to obtain said self-sealing composition.

Abstract: Vehicle rim for mounting of a tire, comprising: an axially central part (20) comprising a disc; two lateral parts (31, 32), at least one of the lateral parts being separate from the axially central part, each of the lateral parts having a rim seat to receive a bead of a tire, the axially central part and the two lateral parts being made from a rigid matrix; an intermediate part (41, 42) that forms the only mechanical link between the axially central part and each lateral part that is separate from the axially central part, this intermediate part being made of a flexible matrix, the Young's modulus of uniaxial extension of the flexible matrix being greater than and equal to 50 MPa and less than or equal to 400 MPa; wherein the Young's modulus of uniaxial extension of the rigid matrix is greater than or equal to 5 GPa.

Abstract: Vehicle rim for the mounting of a tire, comprising: an axially central part (20) comprising a disc; two lateral parts (31, 32), at least one of the lateral parts being separate from the axially central part, each of the lateral parts having a rim seat receiving a bead of a tire, the axially central part and the two lateral parts being made from a rigid matrix reinforced by a plurality of reinforcement elements; an intermediate part (41, 42) linking the axially central part and each lateral part separate therefrom, this intermediate part being made of a flexible matrix reinforced by a reinforcement, wherein 1 MPa ?the Young's modulus of uniaxial extension of the flexible matrix ?100 MPa, the Young's modulus of uniaxial extension of the reinforcement elements is ?5 GPa; wherein the Young's modulus of uniaxial extension of the rigid matrix is ?5 GPa.

Abstract: In a method for manufacturing a tire casing, at least one electrically conductive wire forms turns that are centered on a main axis of the casing. Additionally, a bonding layer is incorporated into the casing.

Abstract: A method for retreading a tire casing is disclosed herein. The method includes at least the following steps: an internal volume of a casing carcass is put under negative pressure, a vulcanized tread closed in the form of a ring is provided, and—the tread is laid on the carcass.

Abstract: A running set comprising: a tire (10) comprising two beads (20); a mounting rim (500) of which the width is greater than or equal to 55% and less than or equal to 80% of the maximum axial width of the tire inflated to its service pressure; and at least one adapter (100) which provides the connection between the mounting rim and a bead of the tire.

Abstract: A pneumatic tire includes an internal sealing layer, which partially delimits an internal volume of the pneumatic tire, and a self-sealing layer formed of a self-sealing product. The self-sealing layer is positioned radially on an inside region with respect to the internal sealing layer, and has a creep resistance indicator that decreases radially outwards, i.e., towards outside of the pneumatic tire.

Abstract: The invention refers to a direct drive electric generator for a wind turbine provided with rotor salient poles and a ladder-like cryostat for housing superconductive coils and keeping them at a cryogenic temperature while the interior of the cryostat is kept free of coolant. The invention achieves optimal thermal insulation of the coils without the need of a continuous re-filling of the cryostat and ensuring a good distribution of the magnetic field avoiding the use of expensive materials.

Abstract: An elastomer composition having a self-sealing property includes: a blend of at least two solid elastomers, in which “elastomer A” is a polybutadiene or butadiene copolymer elastomer, in which “elastomer B” is a natural rubber or synthetic polyisoprene elastomer, and in which an elastomer A:elastomer B weight ratio is within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin, with phr meaning parts by weight per 100 parts of solid elastomer; and from 0 to less than 120 phr of filler, which includes from 0 to less than 30 phr of reinforcing filler. The composition may be used to form a puncture-resistant layer in an inflatable article, such as a tire. The puncture-resistant layer may be used in combination with an airtight layer to form an airtight and puncture-resistant laminate for the inflatable article.