High-Strength Tire Materials for Extreme Conditions

Rubber composition for winter tires that improves ice traction without studs. The composition contains natural rubber, styrene-butadiene rubber, neodymium-modified butadiene rubber, carbon black, white carbon black, quartz powder, silane coupling agent, oil, zinc oxide, stearic acid, sulfur, accelerator, antioxidant, and protective wax. The composition improves ice traction by increasing surface roughness through large quartz powder particles and chemical bonding with the rubber matrix using a silane coupling agent. This pierces through ice films for better friction. The composition also maintains low temperature elasticity through the neodymium-modified butadiene rubber and oil.

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A puncture-proof and high-wear-resistant tire compound for mining applications. The compound improves puncture resistance and wear life of mining tires compared to standard compounds. The key components are modified chopped carbon fiber, montmorillonite, and aromatic oil. The modified chopped carbon fiber is made by intercalating montmorillonite between the carbon fiber layers. This improves dispersion and reinforcement of the carbon fiber in the rubber matrix. The aromatic oil provides puncture resistance. The compound also contains carbon black, zinc oxide, tackifier, antioxidant, and coupling agent.

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Mine tire tread rubber composition and preparation method to improve tear resistance, chipping resistance, wear resistance, and reduce heat generation compared to conventional mine tire tread rubbers. The rubber composition includes a base rubber, a diene-based elastomer, a styrene-butadiene rubber, a carbon black with high volumetric filler content, and a tear-resistant resin. The high filler content and tear-resistant resin improve tear and chipping resistance. The styrene-butadiene rubber reduces heat generation. The composition ratios are optimized for balance between tear resistance, chipping resistance, wear resistance, and heat generation. The method involves mixing the components in specific proportions to prepare the tire tread rubber.

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Tread rubber compound for tires designed to improve grip on icy and snowy roads at low temperatures. The compound has a specific formulation optimized for semi-steel tires on ice and snow. The rubber compound composition aims to balance grip on snow and ice with durability at low temperatures. It achieves this by carefully selecting and balancing the types and amounts of rubber, fillers, and other components in the tread rubber. This allows the tire to maintain good traction on snow and ice while avoiding excessive hardening in cold temperatures that would impair grip.

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A pneumatic tire with improved grip performance on high-temperature roads and abrasion resistance. The tire tread uses a rubber composition with specific ingredients to enhance grip and durability. The composition includes an isoprene-based diene rubber, carbon black, silica, a compound with bonding units represented by Formulas (1) and (2), and a compound represented by Formula (3). The compounds containing Formulas (1) and (2) are silane coupling agents that modify the rubber composition. The compound represented by Formula (3) is a crosslinking aid. The specific combination of these ingredients improves grip and durability, especially on hot roads, compared to traditional rubber compositions.

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Rubber composition for tires with improved wear resistance and tensile properties by controlling compatibility between rubber components. The composition contains two synthetic rubbers with different solubility constants. One is a high styrene content solution-polymerized conjugated diene rubber. The other is a lithium-catalyzed butadiene rubber with functional groups at the ends. The different solubility prevents phase separation between the rubbers. This allows simultaneous expression of properties from both. The composition also contains filler like silica to further enhance properties.

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Rubber mixture for tires, belts, and hoses that improves dry braking performance at low temperatures without negatively impacting other properties like rolling resistance and cold flexibility. The mixture contains specific combinations of polymers, plasticizers, silica, and vulcanization aids. It uses high levels of natural/synthetic isoprene or butadiene rubber, up to 120 phr of plasticizers, a specific range of silica (70-250 phr), and specific vulcanization aids.

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Rubber composition for studless winter tires with improved low temperature workability, hardness, and wear resistance on ice and snow without compromising friction. The composition contains 40-60 parts silica, 15-25 parts epoxidized liquid polyisoprene, 50% or more polybutadiene diene rubber, and optional sulfur. The high silica and epoxy rubber content improves low temp hardness, while the diene rubber provides good friction on ice/snow. The composition has better workability compared to high silica formulations due to the epoxy rubber.

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Tread rubber composition for passenger car tires with improved snow performance and wear resistance by adding nanocomposites to disperse the fillers better. The composition contains 2-10 parts by weight of nanocomposite material based on 100 parts of the rubber. The nanocomposite improves filler dispersion, leading to better snow traction, wear resistance, and overall tire properties compared to the same rubber without the nanocomposite.

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Rubber composition for heavy duty tire treads that balances abrasion resistance, tear resistance, and low heat generation. The composition contains a rubber blend with specific components: (i) modified styrene-butadiene copolymer rubber made by solution polymerization with tin atoms in the chain, (ii) natural rubber or synthetic isoprene rubber, and optionally (iii) other diene rubbers. A hydrazide compound is also included. This composition provides improved abrasion resistance, tear resistance, and low heat generation for heavy duty tire treads compared to conventional rubber compositions.

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Tire tread compound with improved performance in wet, snow and ice conditions, while maintaining acceptable wear resistance. The tread is reinforced primarily with silica instead of carbon black. The rubber composition has three diene elastomers: an isoprene/butadiene copolymer (IBR) with low glass transition temperature (-35 to -50°C), another IBR with lower Tg (-65 to -90°C), and cis 1,4-polybutadiene (cis-BR) with higher Tg (-85 to -105°C). This provides a balance of properties for good grip in extreme temperatures. The tread also contains silica, a silane to react with the silica surface, and a silica coupler to interact with the rubber. The silica:coupler ratio is 8:1 to 20:1.

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Rubber compound for tire treads that improves ice braking performance and wear resistance. The compound contains thermoplastic resin particles mixed with a thermosetting liquid or solid, and nanoclays. The thermoplastic resin particles expand during vulcanization to form air bubbles on the tire tread surface that remove water films from ice, improving ice braking. The nanoclays reinforce the rubber and prevent chip-cutting wear.

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Rubber composition and tire tread formulation that provides good grip performance at low initial tread surface temperatures, particularly for high-speed tires. The rubber composition contains a blend of a conventional rubber component like SBR with a resin having a low mass loss rate of 1% or less at 200°C when heated at 10°C/min. This resin addition helps reduce the temperature dependence of the rubber properties for better grip consistency across a wider temperature range. The tire tread using this rubber composition has improved grip at low temperatures compared to conventional treads.

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A heavy duty tire with improved cut resistance and long-term tread appearance for use on extremely rough roads like mines. The tire has a tread and an inner base tread. The base tread is sandwiched between the tread and the tire carcass. This configuration prevents cuts and chunking out of the tread in harsh conditions like mines. The base tread also provides a better long-term tread appearance compared to just the tread alone.

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Rubber composition for studless winter tires that improves ice and snow traction without sacrificing low rolling resistance. The composition contains cellulose fiber treated with a silicone compound, along with polyethylene. The silicone-treated cellulose disperses evenly in the rubber and forms dropping holes on the tread surface when driven. This removes water films for better ice traction. The polyethylene improves physical properties like abrasion resistance.

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Rubber composition for tires that improves traction on snow and ice while maintaining abrasion resistance without increasing hardness. The composition contains diene rubber, glass fibers, reinforcing agents like carbon black or silica, and inorganic powders softer than the fibers. It also optionally includes silicone rubber powders. The softer inorganic powders and silicone powders help balance properties like dispersion and hardness as the fibers are added. They prevent hardness increase and softener dissipation compared to using fibers alone.

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A tread rubber composition for competition tires that improves grip on wet roads without compromising wear resistance or workability. The composition has a rubber component with specific styrene content and SBR proportion, along with a unique filler combination. The rubber component has 35-50% styrene content and 80-100% SBR proportion. The fillers are carbon black and flypontite-silica complex with total filler loading of 100-200 parts per 100 parts rubber. The composition balances wet grip, wear resistance, and workability.

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Improving wet skid resistance of elastomeric compounds used in tires and other rubber products without compromising other properties. The method involves adding a specific type of filler with a hardness above 4.5 and a low surface area below 100 m2/g, along with a separate reinforcing filler like silica. This combination improves wet grip compared to using just silica. The low surface area filler enhances wet traction without negatively impacting other properties. The reinforcing filler provides the necessary reinforcement.

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Rubber compound for winter tires with improved snow and ice traction, braking, and reduced rolling resistance compared to conventional winter tire compounds. The compound contains a specific range of a low-temperature ester plasticizer, along with diene rubber, silica, and optionally carbon black. The ester plasticizer synergistically improves winter performance when used in the rubber compound, particularly snow and ice traction. The compound allows reduced rolling resistance while maintaining winter grip, unlike some other compounds that sacrifice winter properties for rolling resistance.

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