Innovations in Self-Healing Tires for Enhanced Durability

An anti-puncture tire with self-repairing capability that can prevent tire damage from objects and extend tire life. The tire has a unique rubber composition with modified rubber, repair agent, antioxidant, plasticizer, and anti-aging agent. This composition improves tire properties like strength, durability, and adaptability to extreme temperatures. The self-repairing function is achieved by a post-processing mixture containing adhesive, vulcanizing agent, and accelerator. This mixture is applied after the initial rubber molding to seal punctures and prevent air loss.

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Disc-covered self-repairing sealant for tire punctures in electric vehicles that prevents tire deflation and extends tire life. The sealant is a composition of modified polyurethane sealing material and active filler mixed in alcohol. The modified polyurethane contains a diamino-containing thioether compound synthesized from amino and mercaptan groups. The sealant is applied to the inner surface of tires. When a puncture occurs, the sealant fills the hole and seals the tire. The active filler reacts with oxygen to solidify and the modified polyurethane enhances durability and adhesion. The disc cover prevents foreign objects from entering the tire.

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Self-repairing tire for electric motorcycles that can seal punctures and prevent air leaks without needing repairs. The tire has multiple layers: an outer layer with a rubber tread, an inner layer with a repair layer, and a middle layer with a puncture-proof layer sandwiched between the outer and inner layers. The puncture-proof layer prevents penetration, the repair layer seals punctures, and the inner layer seals against air leaks. The tire layers work together to provide self-repairing and leak prevention functionality.

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Self-healing tire compound that prevents punctures and leaks by repairing itself when the tire is damaged. The compound contains a modified polyurethane rubber, butyl rubber, ethylene-vinyl acetate copolymer, carbonized epoxy polyamide nanofibers, carbon nanotubes, and oil. The modified polyurethane rubber is made by reacting an isocyanate-terminated polyurethane prepolymer with p-acetamidobenzenesulfonamide to form ureido groups. The compound also has carbonized epoxy polyamide nanofibers with calcium hexaaluminate and barite for reinforcing and sealing properties.

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Rubber composition for sealing materials in self-healing tires that improves destructive properties, sealing performance after deterioration, and temporal stability. The composition has a specific balance of zinc oxide, liquid polymer, thiuram-based vulcanization accelerator, dithiocarbamic acid-based vulcanization accelerator, and sulfur relative to the butyl rubber base. It also uses a continuous coating method on tire inner liners with adjustable gap to ensure consistent sealing layer thickness.

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Self-sealing tire with a puncture sealant layer between the inner tube and outer tire. The sealant can be injected into the layer and squeezed by the inner tube pressure to distribute evenly. When the outer tire gets a hole, the sealant is squeezed out and contacts air to fill the hole, preventing further leakage. The sealant can be refilled if needed. This allows easy refilling and recycling compared to coating the inner tread.

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Self-healing tire with improved structure to better seal punctures and prevent air loss. The tire has a self-repairing layer sandwiched between the inner lining and outer plies. This prevents the self-repairing material from separating or moving during tire construction. A limiting layer, attached to the inner lining, contains the self-repairing material and seals it in place. This layer has inner reinforcement (cordon) to prevent sagging of the self-repairing material. This improves reliability and effectiveness of the self-healing feature compared to separate application of self-repairing material.

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Self-healing coating for puncture-resistant tires that can seal and repair itself when punctured. The coating contains modified polyetheramide resin, hydrogenated nitrile rubber, and modified calcium-aluminum hydrotalcite filler. The modified polyetheramide has ether bonds and carbazole branches for flexibility and healing. The hydrotalcite improves dispersion and adhesion. The coating seals punctures and cracks by flowing into the damage and curing.

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Self-repairing rubber composition for tires that can heal punctures and prevent tire deflation. The composition contains double-shell microspheres coated with a catalytic repair polymer. When the tire is punctured, the microspheres rupture releasing the catalyst to repair the puncture by crosslinking the rubber. The microspheres are broken by tire pressure when punctured, allowing the catalyst to flow out and heal the puncture. The composition also improves tire life by preventing deflation, reduces waste by enabling recycling, and maintains tire balance.

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Self-compensating puncture-resistant tire that can repair itself if punctured without needing external repairs. The tire has an inner rubber layer with a groove containing a sealant layer and self-healing adhesive layer. The adhesive contains repairing glue. The tire also has an air supplement component with two sealed bags filled with reactants. When punctured, the bags leak reactants that react to produce gas and inflate the tire before the repair glue can seal the puncture.

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Rubber composition for tires with self-sealing capability to prevent punctures. The composition contains thermoplastic elastomer, natural rubber, Australian butyl rubber, liquid isoprene rubber, modified silica, montmorillonite, antioxidant, oil, tackifying resin, and light curing agent. This composition seals punctures when the tire is damaged by flowing out, solidifying, and blocking the puncture site. It prevents further air leakage and tire deflation. The sealing composition is placed between the inner liner and transition layer of the tire.

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A multi-layer self-repairing rubber structure for tires that prevents punctures from deflating the tire and allows it to self-seal. The structure has layers like a normal tire but adds an inner airtight rubber layer between the carcass and tread. This airtight layer contains a self-repairing rubber layer sandwiched between an adhesive layer and an outer covering layer. If the tire gets punctured, the self-repairing rubber layer seals the hole. The inner airtight layer prevents the repair material from peeling off during tire flexing like loose self-sealing glue can.

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A self-repairing bicycle tire that can heal punctures without needing to be removed from the wheel. The tire has multiple layers inside the tread and sidewalls. The tread has a nylon belt with a hot melt sealant layer underneath. The sidewalls have a steel belt with another hot melt sealant layer. When the tire gets punctured, the hot melt sealant melts under centrifugal force as the tire spins. It seals the puncture hole and forms a protective film inside the tire. This allows the tire to continue riding without needing to be taken off the wheel.

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Tire structure that can be automatically repaired three times to prevent leakage from long nails or screws that penetrate the inner wall of the tire. The tire has an integrated repair mechanism inside the inner wall. It consists of two layers of rubber. The first layer is sprayed and forms a base. The second layer is applied over a plastic sheet with drilled holes. This allows the second layer to flex and deform around the penetrating object while still sealing the hole. The multiple layers and deformable inner layer provide better sealing and protection compared to a single layer coating.

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Self-repairing tire innerliner compound with improved puncture resistance and air retention. The compound contains a specific mix of natural rubber, Exxproc/M special elastomer, carbon black, calcium carbonate, zinc oxide, stearic acid, resin, accelerator, and sulfur. The exact proportions of these components are provided in the disclosure. This compound allows self-sealing of punctures in tire innerliners without needing to be repaired externally, improving tire durability and air retention compared to conventional innerliners.

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Self-healing composite material that can repair damage in important areas when traditional composites would fail. The self-healing composite has microcapsules filled with healing agent dispersed throughout. It also has glass tubes filled with healing agent and curing agent in critical areas. When a tube breaks, the healing agent flows out and mixes with the curing agent to heal the damage. The tubes are designed to break under specific impact forces. By alternating tubes, a single assembly forms a self-healing network.

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A self-repairing safety tire that automatically seals punctures and prevents blowouts. The tire has an inner tube filled with repair fluid and an outer tire with multiple layers. The outer tire has a shock-absorbing layer, a stab-resistant layer, and a rubber layer with aramid fibers. When an object punctures the tire, the repair fluid seals the inner tube hole. The outer tire layers block the object and seal the puncture. The aramid fibers in the rubber layer resist punctures. This reduces air loss and prevents blowouts compared to regular tires.

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Bicycle tire that can repair punctures without needing a patch. The tire has a nylon belt layer in the tread cavity wall, an inner steel belt layer, and hot melt sealant layers between the belts and cord layers. When punctured, centrifugal force pushes melted sealant into the hole to seal it. The nylon and steel belts protect the sidewalls.

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Production process for puncture-proof tires that involves spraying a self-repairing material onto the inner wall of the tire during rotation. This ensures even coverage and dynamic balance. The self-repairing material fills the inner wall and seals punctures when the tire is damaged. It provides benefits like high temperature resistance, fatigue resistance, aging resistance, sound insulation, and weight savings compared to traditional tire linings. The tire can also have foam particles for additional weight reduction and extrusion resistance.

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Self-healing epoxy coatings with embedded microcapsules that can repair cracks and damage over time. The coatings contain microcapsules filled with a regenerative healing agent, which is a polymerizable amine compound like triethylenetetramine, and a polymerizable dimethylsiloxane amine. When cracks form in the coating, the microcapsules break and release the healing agent, which polymerizes and fills the crack to restore the coating integrity. This provides self-regenerating capability to extend coating durability.

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