Textile Reinforcement in Tire Construction

Bonded reinforcing textile filamentary element for tire cords that balances deformability and modulus. The element is manufactured by coating the natural textile filamentary element with an external layer and thermally treating it. The treatment increases the modulus at small elongations without excessively increasing it at large elongations. This allows optimizing the modulus-deformability compromise compared to the uncoated filamentary element. The coating process involves selectively increasing the modulus of the coated element for small elongations while preserving deformability at larger elongations. This is achieved by using a core insertion structure where the filaments are wound around the core instead of around each other.

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Reinforced outer ring for non-pneumatic tires that prevents delamination and improves durability. The outer ring has a thermoplastic hoop with embedded reinforcement cords. An elastomeric layer, a reinforcement layer, and another elastomeric layer are stacked around the hoop. This sandwich construction provides a reinforced shear structure that prevents delamination and improves durability compared to a single layer tread on the outer ring. The thermoplastic hoop prevents deformation of the outer ring when the tire is deflated. The sandwich layers allow shear deformation during cornering.

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Three-dimensional knitted fabric shear bands for tires that provide shear deformation when the tire contacts the ground. The shear bands are made from helically wound strips that are stitch-knitted together to form annular rings. This allows the shear bands to be easily cut into the required shape without seams. The knitted construction provides a spacer layer between two skins that maintain their length during shear deformation. This allows the outer skin to deform while the inner skin stays fixed, providing shear resistance and tire contact without stretching the shear band. The knitted fabric also allows customization of the material properties for different tire applications.

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Non-pneumatic tire design with load bearing ring that allows the tire to carry a load without internal air pressure. The tire has an outer annular portion, inner annular portion, and a load bearing ring between them. The load bearing ring has reinforcing layers made of woven material with warp and weft wires. The weft wire deforms the warp wire radially, providing tension support and shear modulus in both radial and lateral directions. This allows the tire to support loads without air pressure while maintaining stability and traction. The woven reinforcing layers can be tuned to create a flat contact patch for improved performance.

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Tire for vehicle wheels with enhanced environmental sustainability. The tire uses textile reinforcing cords containing filaments made of recycled plastic material mixed with filaments made of non-recycled plastic material. The recycled plastic filaments are twisted with non-recycled plastic filaments from different yarns. This allows balancing environmental sustainability and mechanical properties compared to cords with all non-recycled filaments. The recycled content and density of recycled vs non-recycled filaments can be adjusted.

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Composite wire for tire reinforcement that reduces weight compared to steel cords while maintaining required stiffness. The composite wire has a thermoplastic monofilament core surrounded by two or more groups of reinforcement threads wound or braided with angles that add up to zero. The core can contain reinforcement fibers. This configuration provides compression resistance and flexural stiffness similar to steel cords for tire reinforcement applications. The composite wire can be used in tire components like belts, carcasses, and beads instead of steel cords to lower weight.

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A fabric for tire reinforcement that reduces corrosion and extends tire life. The fabric has warp and weft reinforcing elements. The weft reinforcing elements have low moisture regain (<=2.0%) to prevent water spread and corrosion. They are also hairy to allow weaving. The low moisture weft elements reduce water retention in the fabric and prevent corrosion of the metal tire reinforcements.

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Reinforced fabric for pneumatic tire belts that balances hooping and stiffening functions of the tire belts to improve performance and durability. The fabric has parallel metal reinforcing elements embedded in an elastomer matrix. The elements are arranged at a pitch p that meets a specific condition related to the element dimensions and breaking force. This condition prevents interference between adjacent elements and maintains collaboration when used as a working ply in tires. The fabric thickness is also controlled to balance force take-up and avoid imperfect rubber bridges. The pitch condition is p >= 0.8 * RF / Rn * (a + pi/4) * T^2, where RF is the element breaking force, Rn is the fabric breaking force, a is width/height, and T is element height.

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Rubberized strength members for elastomeric products like tires that have high strength and extensibility while conserving resources and reducing environmental impact. The strength member uses a yarn made from recycled PET with specific properties to achieve these goals. The recycled PET yarn is produced through a process that involves pre-crystallization, solid-state polymerization, drying, spinning, oiling, drawing, and heat-setting. This process allows producing recycled PET yarns with desired properties for tire reinforcement. The rubberized strength member can be used in vehicle tires, where it has improved physical properties compared to virgin PET yarns.

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A pneumatic tire design to prevent failure near the bead area by reducing shear strain concentration in the tire sidewall. The tire has a reinforcement layer between the tire outer surface and the turn-up portion of the carcass ply near the bead cores. This layer, made of a non-woven fabric with metal fibers or a rubber sheet with embedded metal fibers, covers the outer side of at least a portion of the turn-up. This reinforcement layer prevents shear strain concentration in the sidewall rubber near the turn-up when the tire is compressed by the rim flange.

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Tyre for high performance (HP) and ultra-high performance (UHP) sports automobiles, electric and non-electric. The tyre comprises a core made of textile material and, around the core, a winding of one or more textile filaments made of a material different from that of the core.

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Tensile reinforcement (TRI) nylon 6.6 yarn for using as tire cord reinforcement in pneumatic tires. The TRI is low initial modulus and higher final modulus and is optimized and balanced for use as tire cord reinforcement in pneumatic tires.

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Tire capable of relieving stress concentration at the position of the end of the reinforcement layer, in addition to relieving stress concentration at the location of the cut edge of the ply. The tire includes a ply including a plurality of cords arranged in parallel to each other, a cover rubber covering the ply and configuring a tire outer surface, and a reinforcement layer that, at a position of a cut edge of the ply, covers the cut edge of the ply on one side or both sides in a ply thickness direction, wherein the reinforcement layer is configured by a non-woven fabric comprising metal fibers or a rubber sheet material having metal fibers embedded therein.

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Tire structure that improves cut and/or puncture resistance of the tire. The structure includes a tread, a crown reinforcement, a carcass reinforcement with at least one ply wound about a pair of bead cores and through two sidewalls of the tire, and a cut/puncture resistant sidewall layer disposed adjacent a part of the carcass reinforcement within one of the sidewalls, the cut/puncture sidewall layer being formed of a plurality of cords, each cord including one nylon cord having S 4-8 tpi (twists per inch), one aramid cord having Z 4-8 tpi, and the nylon cord and the aramid cord being twisted together with S 3-7 tpi.

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Vehicle tires and non-pneumatic tires that improves the load carrying efficiency of a tire. The tire includes a shear band with several layers of polyester or other synthetic material that extend in a first and second direction, wherein the first and second layers are connected together by reinforcement members (such as yarns, filaments or fibers) or other knitted layers that extend in a defined third direction.

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Vehicle tires that have an improved shear band for a non-pneumatic tire. The tire includes a three-dimensional spacer structure made from two outer layers of fabric, each outer layer having reinforcement members (such as yarns, filaments or fibers) which extend in a first and second direction, wherein the two outer layers are connected together by reinforcement members (yarns, filaments or fibers) or other knitted layers that extend in a defined third direction.

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Fiber-reinforced rubber layer that can be situated beneath the tread or base layer, if present, and can help prevent penetration of foreign objects from extending beyond the tread or base layer and further into an underlying layer(s), and preparation thereof. The layer is formed of a rubber compound that is reinforced with one or more types of fiber selected from nylon, aramid, carbon, cotton, and polyester, the aramid fiber including pulp and/or aramid fiber, a crosslinking agent and/or a vulcanizing agent, wherein the crosslinking agent is dithiodicarboxylic acid, the vulcanizing agent is N,N′-m-phenylene dimaleimide, and the accelerator is zinc dibenzyl dithiocarbamate.

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Composite comprising a reinforcing element and a rubber composition, finished or semi-finished articles and tires comprising these composites. The composite comprises a reinforcing element and a rubber composition, finished or semi-finished articles and tires comprising these composites.

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Multi-strand cord that can be used notably for reinforcing tyres, particularly tyres for heavy industrial vehicles, and to tyres using such cords. The cord has a structural elongation As (in which each internal strand in the internal layer within each internal strand and the helix angle of each external thread in the external layer within each internal strand), resulting from the plasticity (irreversible deformation beyond the elastic limit) of one or more threads of the cord.

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Multistrand cords that can be used notably for reinforcing tyres, particularly tyres for heavy industrial vehicles. The cord includes an internal layer of the cord made up of an internal strand and an external layer of the cord made up of six external strands wrapped in a helix around the internal layer of the cord.

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Fiber reinforced composite material using the cord as a reinforcing material. The material includes twisted yarn cord that contributes to tire weight reduction, a method for the production thereof, and a fiber reinforced composite material using the cord as a reinforcing material.

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Tire comprising a carcass, a belt package and a tread. The tire comprises a reinforcement net made of a weaved textile material having a number of meshes ranging from 3 to 20, and wherein the threads are oriented between 25° and 65° relative to a longitudinal direction of the tire.

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Assembly for pneumatic tires with improved uniformity of load distribution when the tire is inflated and loaded. The assembly has a first fabric fixed to the inner crown, a second fabric attached to the tire inner liner, and load-bearing filamentary elements connecting the fabrics. The filamentary elements have high thermal contraction greater than 5% to tension uniformly between the fabrics. This prevents some elements being partially tensioned while others are fully tensioned. The high contraction elements maintain consistent tension during manufacturing and use.

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Multi-strand cord used in reinforcing tires, especially heavy industrial vehicle tires, that provides improved tire durability by preventing corrosion. The cord has two layers of strands, an external layer and an internal layer. The external strands have an incompletely unsaturated intermediate layer that allows elastomer compound to penetrate between the strands. The cord windings are configured to optimize penetration. In one embodiment, the intermediate layer winds in the same direction as the cord. In another, it winds opposite the cord. This prevents gaps between strands that could allow corrosive agents to penetrate the cord and reach the reinforcing steel. The cord windings and strand diameters are carefully chosen to balance flexibility and penetrability.

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Non-pneumatic tire attached to a hub, the tire including a tread band; a plurality of connecting elements connecting the tread band to the hub; wherein the tread band further comprises: a ground engaging surface; a first reinforcement layer comprised of at least one reinforcement oriented in the tire's circumferential direction; a second reinforcement layer, located radially outward from the first reinforcement layer, the second reinforcement layer comprised of a plurality of reinforcements oriented at an angle in a first direction to the tire's circumferential direction; a third reinforcement layer, located radially outward from the second reinforcement layer, the third reinforcement layer comprised of a plurality of reinforcements oriented at an angle in a second direction to the tire's circumferential direction; a fourth reinforcement layer, located radially outward from the third reinforcement layer, comprised of a plurality of reinforcements oriented in the tire's circumferential direction.

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Glass-resin composite monofilament reinforcer for rubber products like tires with improved properties and reduced compression breakage during curing compared to prior art glass-resin composite monofilaments. The monofilament has glass filaments embedded in a crosslinked resin. The key features are: 1) crosslinking the resin after embedding the glass filaments, 2) sweeping the filament with inert gas during irradiation to prevent degradation, and 3) irradiating the filament for a specific duration to achieve improved glass transition temperature, elongation, and moduli. The composite monofilament can be used as a reinforcer in rubber products like tires to replace metal cords.

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Multi-strand cord for heavy duty tire reinforcement that resists cutting by obstacles. The cord has a unique two-layer strand architecture. The internal layer has fewer strands than the external layer, preventing spread of corrosive materials between strands. The fewer internal strands also provide better resistance to transverse loading. The layers are wound together with the internal layer contacting the external layer. This concentrates loading on the fewer internal strands. The cord can be embedded in tire compounds to further prevent corrosive materials from spreading. The cord is suitable for heavy industrial vehicle tires, like trucks, buses, and construction equipment.

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A tire construction that reduces weight and improves handling compared to conventional tires by using a lightweight fabric layer between the tread and inner carcass. The fabric layer has warp cords with a nylon monofilament covered by multifilament cords. Weft cords extend transversely over and under the warp cords. The nylon monofilament provides initial stiffness, and the multifilament cover reduces weight. The fabric layer can be made of materials like aramid, glass, and carbon. The lightweight fabric layer replaces heavier belt assemblies and carcass plies, reducing tire weight and improving handling.

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Multi-strand cord for reinforcing heavy industrial vehicle tires that resists punctures better than conventional cords. The cord has two layers of strands wound around each other. The inner layer has J (>1) strands with smaller diameter than the outer layer's L strands. This architecture transfers loads differently compared to conventional cords where the outer layer has more strands. The inner layer strands resist transverse loads better due to the smaller diameter. This prevents shearing when the cord is tensioned. The cord can also be made partially penetrable by the tire's rubber to prevent corrosive agents spreading between the strands. The cord's layers have similar moduli for optimal strength-cutting resistance. The inner layer has incompletely unsaturated intermediate strands to balance penetrability and strength.

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A tire structure that reduces weight and improves handling without sacrificing durability. The tire has a fabric layer sandwiched between the tread and carcass ply. The fabric has thin monofilament warp cords and flat textured multifilament weft cords that extend over and under the warp cords. This fabric provides lateral stiffness without adding bulk like conventional belts. The thin monofilament warp cords are reinforced with weft stitches to prevent cracks.

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Assembly, impregnated assembly, tire, mounted assembly, and method for manufacturing a tire with improved flattening and load-bearing properties. The assembly has a woven first fabric and a woven or knitted second fabric connected by filamentary bearing elements. The woven first fabric has straight zones with anchoring filaments. The filamentary bearing elements connect between the fabrics. This allows load transfer from the first fabric to the second fabric outside the contact patch. Buckling of elements in the contact patch is prevented by compressive forces. This assembly improves tire flattening and load-bearing compared to conventional tires.

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A tire design with improved flattening and load bearing capability. The tire has a unique assembly inside it. The assembly has two structures, one with filamentary elements and one with woven fabric, connected by filamentary bearing elements. The filamentary elements have low curvature at the tire ends to flatten the tire when loaded. The woven fabric prevents buckling of the filamentary elements inside the contact patch. The filamentary bearing elements outside the contact patch bear the load. The assembly is impregnated with a thermoplastic elastomer.

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A water-based dipping composition for coating textile reinforcement materials used in tires and other elastomeric articles. The composition contains specific ratios of rubber latex, blocked isocyanate, wax, epoxy compound, and carboxylic acid functional polymer to provide improved bonding between the coated textile and elastomeric compounds. The composition is RF-free and allows long shelf life of the coated textile.

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Reinforced product like rubber tires that can be reinforced with sheathed metallic threads for improved strength and durability without using formaldehyde-based adhesives. The sheathing material is a block copolymer with specific structure containing polyamide and polyolefin blocks. The copolymer is applied to the reinforcing threads before embedding them in the rubber composition. This direct adhesion of the reinforcing threads to the rubber eliminates the need for formaldehyde-based adhesives. The sheathed threads are embedded in a rubber composition without crosslinking agents like cobalt salts for adhesion. The reinforced product can be used in tires and other rubber articles. The sheathed threads have a composition with at least 70% of the specific block copolymer.

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Multi-strand cords for reinforcing heavy industrial vehicle tires that resist penetration by cutting objects better than conventional cords. The cords have an architecture with an internal layer of strands surrounded by an external layer. The internal layer has a higher number of strands per layer compared to the external layer. This distributes the transverse loading between more strands when the cord is tensioned, preventing shearing of individual strands. It also allows penetration of the elastomer compound into the core and strands to prevent corrosive agents spreading. The internal strands have incompletely unsaturated layers to further prevent spreading of corrosive agents. The cord has two layers with helix winding to improve compromise between penetrability and breaking strength.

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Resin compositions for reinforcing lightweight composites in applications like tires without metal cords. The compositions contain a crosslinkable resin like vinyl ester or unsaturated polyester, a crosslinking initiator, and a crosslinking agent with a specific structure. The crosslinking agent has a substituent group X containing 1-4 carbon atoms and R1, R2 are acrylate, methacrylate, vinyl, or allyl groups. This resin composition is used in composites with fibers for lightweight tire reinforcement.

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Tire reinforcement fabric for pneumatic tires with improved adhesion and durability compared to conventional tire fabrics. The fabric is made by weaving individually dipped cords as warp with weft material. The cords are dipped in a solution containing materials like polyurethane, epoxy, or latex, then heat-set. This provides enhanced adhesion between the cords and rubber compared to just weaving untreated cords. The dipping process also eliminates contact points between cords where adhesion is low. The dipped cords have specific properties like total linear density, twist level, and cord distance. This results in a tire fabric with improved ply stiffness, adhesion, and resistance to ply separation and fatigue.

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Reinforcing composite material for rubber articles like tires that improves durability and resistance to delamination and fiber migration. The composite has a multilayer structure with a glass fiber reinforced polyester (GRC) monofilament as the core. This GRC core is coated with two layers. The inner layer is a benzoxazine resin and the outer layer is a thermoplastic polyester. The benzoxazine layer between the GRC and thermoplastic provides better adhesion and prevents fiber migration.

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A rubberized reinforcing ply for tires that is thin and lightweight while still having sufficient strength for tire forces. The ply uses cord-shaped strengthening members made of twisted multifilament yarns instead of traditional fabrics. The cord density is optimized between 150-220 epdm to balance rubber volume and strength. The thinner ply reduces weight and rolling resistance. The cord construction and yarn material can vary. The tire can also have a separate belt ply with thinner cords.

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A tire with a shaped tread that is made by assembling multiple sheets of polymeric material. The sheets have a predetermined tread shape and are stacked on top of each other. Reinforcements are placed between the sheets to provide strength. The stacked sheets are then cured to form the tire. This allows for a tire with a complex tread shape that can be made using additive manufacturing techniques.

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Tire design with improved flattening and load-bearing properties. The tire has a unique construction with a bearing structure connecting the upper and lower fabrics. The bearing elements alternate between fabrics as they extend. This allows the outer elements to tension and flatten under load, while inner elements buckle. This distributes load without compressing the fabrics. The fabrics can be woven or knitted with coated threads. The tire also has features like a crosslinked adhesive on threads to prevent delamination.

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A three-dimensional knitted shear band for non-pneumatic tires that replaces conventional rubber layers. The shear band has two fabric layers with multifilament yarns and a spacer layer with monofilament yarns sandwiched between. Rubber is applied to the outer surfaces of the fabric layers. The knitted structure allows deformation of the tire contact area while maintaining length of the fabric layers through shear strain in the spacer layer. This enables flat tire contact without internal air pressure. The knitted construction provides lightweight, flexible, and durable shear bands compared to rubber.

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Textile cord reinforcement for tires that improves tire performance properties like high speed capability, durability, cornering force, and ride and handling characteristics. The cord for tire overlay plies has 6-10 nylon monofilament plies with densities of 300-470 dtex twisted together with 1-2 twists per inch. The cord construction provides high bending stiffness, flex fatigue resistance, and cornering stiffness compared to multifilament cords. Coating the cord with adhesive further improves adhesion to the rubber matrix. The cord density, twist level, and monofilament ply count range are optimized to balance properties.

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Tire construction with multiple layers sandwiched between reinforcements to improve durability and reduce weight compared to conventional tires. The tire has alternating layers of green rubber sheets with upper and lower rings and spoke portions, separated by reinforcements. This creates a multi-layered tire structure with reinforced joints between the rubber layers. The layers are built up and cured to form the tire. This allows customizing the rubber composition and thickness in each layer for specific performance requirements. The reinforcements provide additional strength and support at the interfaces between the rubber layers.

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Tire assembly design to improve flattening and performance of the tire when loaded. The assembly has a unique structure with impregnated woven fabrics connected by sacrificial temporary holding elements. The sacrificial elements allow the fabrics to be held together during assembly, but dissolve during curing. This leaves the fabrics connected by threads outside the contact patch. When loaded, the threads tension to provide bearing force, reducing deformation of the inner layers. The impregnated fabrics also provide stiffness. The assembly allows optimized flattening without sacrificing sidewall protection or pneumatic stiffness.

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A non-pneumatic tire design with a shear band for providing durability and structural integrity without the need for internal air pressure. The shear band has a three-dimensional fabric spacer enclosed by a multi-ply laminated belt package. The spacer is sandwiched between the outer and inner belts of the tire. The fabric reinforced plies have angled orientations relative to the tire equatorial plane for flexibility and durability. This allows the shear band to deform under load while preventing belt separation. The angled fabric layers provide shear resistance while the adjacent belts tension during deformation.

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Radial tire for passenger cars with a fabric strip in the reinforced belt layer that reduces weight, cost, and improves fuel efficiency compared to conventional reinforced belts. The fabric strip has parallel warps and woven wefts that are adhered together. This allows a thinner, lighter belt layer compared to calendered reinforced belts. The fabric strip also eliminates air trapping issues. The warps and wefts can be treated with adhesives and heat to enhance bonding.

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Tire textile cords with improved performance and sustainability for high-performance tires. The cords have yarns with filaments containing PEF polymer reinforced with carbon nanomaterials and/or boron nitride nanomaterials. The nanomaterials enhance properties like strength and stiffness while reducing weight. The cords can also have a PET/PEF composite structure for better adhesion to the rubber matrix. The nanomaterials can be functionalized to improve interfacial interactions. The cords can be used in tire components like belts, carcasses, and overlays for improved tire performance and sustainability.

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Non-pneumatic tire assembly with improved load carrying capacity and durability compared to conventional non-pneumatic tires. The tire has a unique internal structure with arcuate members wrapped in reinforcement layers and secured between radial extensions of the core. This provides a load path from the rim to the core. An outer reinforcement layer around the core completes the load path. Wedges between the arcuate members prevent deformation. This allows higher load capacity without relying solely on the spokes. A shear band can further reinforce the load path. The reinforcement layers use calendered fabric and rubber treatments for strength. The wrapped arcuate members and outer core layer provide load transfer from rim to core. The wedges prevent deformation. This structure allows higher loads compared to just polymeric spokes.

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Flat composite reinforcer for rubber and plastic articles like tires that has improved compression, bending, and shear properties compared to prior composite monofilaments. The reinforcer is a multicomposite strip with a width-thickness ratio greater than 3. It contains mineral fibers embedded in a thermoset resin. The strip shape provides better compression resistance compared to round monofilaments. The reinforcer is used in tire belts, carcasses, and beads to replace metal cords and reduce weight. It is also a laminate with the reinforcer sandwiched between rubber layers.

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