Abstract: A monofilament made of glass-resin composite has improved properties in compression, in particular at high temperature, and comprises glass filaments embedded in a crosslinked resin. The glass transition temperature of the resin is equal to or greater than 190° C. The elongation at break of the monofilament, measured at 23° C., is equal to or greater than 4.0%. The initial tensile modulus of the monofilament, measured at 23° C., is greater than 35 GPa. The real part of the complex modulus of the monofilament, measured at 190° C. by the DMTA method, is greater than 30 GPa. Pneumatic or non-pneumatic tires are reinforced with such a composite monofilament.

Abstract: A threadlike metallic or metallized reinforcer, for example a thread, film, tape or cord made of carbon steel, at the periphery of which is positioned a layer of metal referred to as “surface metal” chosen from copper, nickel and copper/nickel alloys, is characterized in that this surface metal layer is itself coated, at least in part, with at least one layer of graphene; preferably, there is grafted, to this graphene, at least one functional group which can crosslink to a polymer matrix. This reinforcer of the invention is effectively protected from corrosion by virtue of the graphene present at the surface; advantageously, it can be adhesively bonded directly, without adhesion primer or addition of metal salt, to an unsaturated rubber matrix, such as natural rubber, by virtue of the possible functionalization of this graphene.

Abstract: A process for depositing, with forward progression, graphene on the surface of a metallic or metallized continuous reinforcer, at the periphery of which is positioned a layer of surface metal chosen from copper, nickel and copper/nickel alloys, comprises at least one stage of flame spray pyrolysis (“FSP”), under a reducing atmosphere, of a carbon precursor which generates, in the flame, at least one carbon-based gas such as carbon monoxide which is sprayed onto the surface of the reinforcer in forward progression, and is decomposed thereon to form one or more graphene layers at the surface of the surface metal; an additional stage of graphene functionalization makes it possible to adhere the reinforcer to a polymer matrix such as rubber.

Abstract: A bead wire for a tire includes a core, an outer layer, and at least one intermediate layer. The core includes at least one yarn of a multifilament textile fiber embedded in an organic matrix. The outer layer includes an outer-layer metal wire wound around the core. Each intermediate layer includes an intermediate-layer metal wire wound around the core. Each intermediate layer is disposed between the core and the outer layer.

Abstract: A ready-for-use metal reinforcer, for example, of the wire or cord type, made of brass-coated carbon steel, is capable of adhering directly by vulcanization to a matrix of unsaturated rubber such as natural rubber. The surface of the reinforcer is provided with nanoparticles of at least one sulfide of a metal chosen from cobalt, copper, iron, zinc and the alloys comprising at least one of these elements. Such a reinforcer can be used as the reinforcing element of a finished article made of rubber, such as a tire.

Abstract: A threadlike metallic or metallized reinforcer, for example a thread, film, tape or cord made of carbon steel, at the periphery of which is positioned a layer of metal referred to as “surface metal” chosen from copper, nickel and copper/nickel alloys, is characterized in that this surface metal layer is itself coated, at least in part, with at least one layer of graphene; preferably, there is grafted, to this graphene, at least one functional group which can crosslink to a polymer matrix. This reinforcer of the invention is effectively protected from corrosion by virtue of the graphene present at the surface; advantageously, it can be adhesively bonded directly, without adhesion primer or addition of metal salt, to an unsaturated rubber matrix, such as natural rubber, by virtue of the possible functionalization of this graphene.

Abstract: A process for depositing, with forward progression, graphene on the surface of a metallic or metallized continuous reinforcer, at the periphery of which is positioned a layer of surface metal chosen from copper, nickel and copper/nickel alloys, comprises at least one stage of flame spray pyrolysis (“FSP”), under a reducing atmosphere, of a carbon precursor which generates, in the flame, at least one carbon-based gas such as carbon monoxide which is sprayed onto the surface of the reinforcer in forward progression, and is decomposed thereon to form one or more graphene layers at the surface of the surface metal; an additional stage of graphene functionalization makes it possible to adhere the reinforcer to a polymer matrix such as rubber.

Abstract: A process for manufacturing a monofilament made of glass-resin composite comprising glass filaments embedded in a resin comprises: creating a rectilinear arrangement of glass filaments and conveying this arrangement in a feed direction: in a vacuum chamber, degassing the arrangement of glass filaments by the action of the vacuum; at the outlet of the vacuum chamber, after degassing, passing through an impregnation chamber under vacuum so as to impregnate said arrangement of glass filaments with a photocurable resin composition in the liquid state to obtain a pre-preg containing the glass filaments and the resin composition; passing said pre-preg through a sizing die having a cross section of predefined area and shape to provide it with the shape of a monofilament; and downstream of the die, in a UV irradiation chamber, polymerizing the resin composition under the action of the UV rays.

Abstract: A monofilament made of glass-resin composite has improved properties in compression, in particular at high temperature, and comprises glass filaments embedded in a crosslinked resin. The glass transition temperature of the resin is equal to or greater than 190° C. The elongation at break of the monofilament, measured at 23° C., is equal to or greater than 4.0%. The initial tensile modulus of the monofilament, measured at 23° C., is greater than 35 GPa. The real part of the complex modulus of the monofilament, measured at 190° C. by the DMTA method, is greater than 30 GPa. Pneumatic or non-pneumatic tires are reinforced with such a composite monofilament.

Abstract: A ready-for-use metal reinforcer, for example, of the wire or cord type, made of brass-coated carbon steel, is capable of adhering directly by vulcanization to a matrix of unsaturated rubber such as natural rubber. The surface of the reinforcer is provided with nanoparticles of at least one sulfide of a metal chosen from cobalt, copper, iron, zinc and the alloys comprising at least one of these elements. Such a reinforcer can be used as the reinforcing element of a finished article made of rubber, such as a tire.

Abstract: The surface of a body, in particular a metal reinforcer, at least the surface of which comprises a layer of metal referred to as surface metal capable of forming sulphides, is sulfurized. The metal can be chosen from copper, zinc and their alloys. The process comprises at least one stage of flame spray pyrolysis (FSP) of a sulphur-donating precursor, for example, thiophene, which generates hydrogen sulphide in the flame. The metal bodies or reinforcers thus treated can be directly adhesively bonded, without adhesion primer or addition of metal salt, such as a cobalt salt, to matrices of unsaturated rubber such as natural rubber.

Abstract: A single-layer bead wire for a tyre includes a core and an outer layer. The core includes at least one yarn of a multifilament textile fibre embedded in an organic matrix. The outer layer includes a metal wire wound around and in contact with the core.

Abstract: A bead wire for a tyre includes a core, an outer layer, and at least one intermediate layer. The core includes at least one yarn of a multifilament textile fibre embedded in an organic matrix. The outer layer includes an outer-layer metal wire wound around the core. Each intermediate layer includes an intermediate-layer metal wire wound around the core. Each intermediate layer is disposed between the core and the outer layer.

Abstract: A bead wire for a tyre includes a core and an outer layer. The core includes a plurality of circumferential windings of at least one core yarn, with each core yarn including a core multifilament textile fibre embedded in an organic core matrix. The outer layer includes a single outer-layer yarn, with the outer-layer yarn including an outer-layer multifilament textile fibre embedded in an organic outer-layer matrix. The outer-layer yarn is wound around the core.

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z). The wheel comprises a hub (11); an annular band referred to a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14). The two membranes (14, 16) are connected to one another, in zones (17) referred to as anchoring zones, by means of a series (15A, 15B, 15C), that extends in the circumferential direction (X), of cylinder structures (15) referred to as connecting cylindrical structures that are non-touching in the circumferential direction X.

Abstract: A laminated product (1) that forms a deformable cellular structure, comprising: an upper band (2) and a lower band (3) both oriented in the same main direction (X); and between the two bands and connecting the latter in zones (4a, 4b) referred to anchoring zones, a series (5A, 5B, 5C) that extends in the direction X, of cylindrical structures (5) referred to connecting cylindrical structures that are non-touching in the direction X. Each connecting cylindrical structure (5) comprises a plurality of preferably concentric elementary cylinders (5a, 5b) having their generatrix oriented along an axis Y perpendicular to the direction X, said elementary cylinders being fitted one inside the other and interconnected to one another in each anchoring zone (4). Said elementary cylinders are especially composite cylinders comprising fibers embedded in a resin matrix.

Abstract: A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on fibers and on a crosslinkable resin, by continuous winding and superposition of several layers of a tape of reinforcement fibers embedded in a matrix based on a composition comprising a crosslinkable resin. The process comprises from upstream to downstream, the following steps: producing a rectilinear arrangement (12) of reinforcement fibers (11) and conveying this arrangement in a feed direction (F); degassing the arrangement (12) of fibers by the action of a vacuum (13); after degassing, impregnating said arrangement (12) of fibers under vacuum with said resin composition in the liquid state (17); passing the pre-preg thus obtained through a die (20) to make said pre-preg into the form of a tape (21) composed of reinforcement fibers (11) in their liquid resin (17) matrix, the thickness of said tape being less than 0.

Abstract: Flexible tire having a flexible bearing structure extending circumferentially about an axis of rotation, a tread (13) on the radially outer periphery of the bearing structure, and at least one attachment zone (11), radially on the side of the axis of rotation, for the attachment of the bearing structure to a wheel center, the bearing structure comprising a plurality of supporting elements (2) extending essentially transversally, the supporting elements being juxtaposed circumferentially and distributed all around the circumference, the supporting elements (2) including a stack of metal strips (21) with interposition of a layer of sliding material (22) between each strip.

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z), this wheel comprising at least: a hub (11); an annular band referred to as a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14), the wheel furthermore comprising: a flexible, circumferential contact membrane (21) oriented in the circumferential direction (X); a plurality of connecting elements (22) providing a connecting link between the circumferential contact membrane (21) and the annular shear band (13).

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z), this wheel comprising: a hub (11); an annular band referred to as a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14)U. The two membranes (14, 16) are connected to one another by means of a series, that extends in the circumferential direction (X), of cylinders (15) referred to as connection cylinders, said connection cylinders (15) being non-touching in the circumferential direction X and having their generatrix oriented in the axial direction Y. The connection cylinders (15) are composite cylinders comprising fibers embedded in a resin matrix.