Techniques to Improve Tire Tread Wear Resistance

A tire tread rubber composition for improving dry grip and wear while reducing rolling resistance. The composition contains specific proportions of styrene-butadiene rubber (SBR) and polybutadiene rubber (BR) with a reinforcing silica filler, low carbon black, hydrocarbon resin, oil, and vulcanization package. The SBR has high molecular weight and low vinyl content, the BR has ultra-low Tg, and the total SBR+BR content is 90-100 parts. The composition has total SBR+hydrocarbon resin+oil content less than 60 parts.

Source

Pelletizable fiber blends for enhancing physical properties of composite materials without extensive fiber dispersion. The blends contain short fibers, including highly fibrillated fibers, and a binding agent. The fibers and binder are pelletized to increase density and improve storage, transport, and processing. Adding the pelletized fiber blend directly to polymers or rubbers without melting allows homogenous composite formation via pellet breakage. The pellets disperse fibers better than unpelletized fibers, improving composite properties like modulus, strength, tear resistance, and abrasion resistance.

Source

Modified conjugated diene-based polymers with improved affinity to fillers like silica for rubber applications. The polymers have a unique structure with a first chain derived from a conjugated diene monomer, a second chain derived from a macroinitiator with a compound having a formula like 1, and a functional group derived from a silane modifier connecting the chains. The modifier functional group enhances polymer-filler interactions. Preparation involves modifying the chain ends, then reacting with a macroinitiator to form the grafted chains.

Source

A pneumatic tire with improved heal-and-toe wear resistance and traction. The tire has circumferential main grooves only in the inner half of the tread width. The outer shoulders have shoulder lug grooves that divide into see-through sections. The center has center lug grooves that connect innermost circumferential grooves. The center lug grooves have angled sections on the tire equator. This configuration balances edge effect for wear resistance with block rigidity for traction.

Source

Pneumatic tire design with improved uneven wear resistance and wet traction. The tire has specific features in the shoulder and center regions. The center land portion has multiple center lug grooves with blocks between them. The middle land portion has multiple middle lug grooves, blocks, a notch on the center groove side of each block, and a middle sipe extending from the notch to the shoulder side. This configuration helps prevent uneven wear and improves wet traction by providing interconnected sipes and lugs that can channel water and provide biting edges.

Source

Tread rubber composition for pneumatic tires that provides excellent abrasion resistance. The composition contains specific amounts of styrene-butadiene rubber (SBR) and polybutadiene rubber (BR) along with crosslinking agents, fillers, and other additives. The composition satisfies relationships involving hardness and swell changes before and after heat aging. This composition structure improves abrasion resistance compared to typical rubber compositions. The relationships involve adjusting the rubber composition to reduce the change in hardness and swell between new and aged rubber. This reduces differences between new and aged rubber properties that can degrade abrasion resistance.

Source

ABSTRACT Significant advancements in developing highperformance, sustainable tyre tread compounds have been achieved through the strategic integration of modified silica into carbon black (CB)/thermally exfoliated graphite hybrid filler systems. While benefits fillers such as CB, graphite, and are recognized, limited understanding their interaction mechanisms with polymer chains has hindered widespread adoption. This study investigates mechanical, thermal, dynamic mechanical properties an ecofriendly, green compound, focusing on both binary (CB/silica) ternary (CB, graphite/modified silica) The key aspect this research is utilization prepared by latex imprinting technique along epoxidized natural rubber (ENR) a compatibilizer to enhance between NR matrix. partial replacement CB thermally novel lateximprinted enhanced surface area provides excellent properties, low rolling resistance, improved wet grip, reduced heat buildup. porosity silica, coupled system, play crucial role reducing hysteresis, resulting resistance (0.0376), grip (0.0796), very buildup (13C). attribu... Read More

Source

Heavy truck tire tread design that improves wear life without compromising wet braking performance. The tread has a unique groove configuration with hidden, open, and partially hidden grooves. This configuration provides more contact surface area for wear resistance without increasing the contact pressure that can harm wet braking. It also has lateral sipes that extend across multiple grooves to prevent irregular wear. The hidden grooves have undersurface channels that open to the contact surface as the tread wears. This provides additional contact surface without increasing the total depth. The open grooves have bottom surfaces that become visible as the tread wears. The partially hidden grooves have bottom surfaces that partially become visible. The sipes have a height greater than half the tread depth. The hidden grooves, open grooves, and partially hidden grooves along with the sipes provide a more complex contact pattern as the tread wears, preventing irregular

Source

A tire design with improved wet steering stability, vehicle external noise resistance, and wear resistance in a balanced manner. The tire has four circumferential main grooves, defining lands, chamfered portions, and inclined grooves. At least one circumferential narrow groove is added in the lands. This configuration provides balanced wet steering stability, noise reduction, and wear resistance. The narrow grooves in the lands improve wet grip, the chamfered portions reduce edge effects, the inclined grooves further reduce noise, and the overall design maintains wear resistance.

Source

Modified conjugated diene-based polymer with improved filler affinity and processability for rubber applications. The polymer has a unique structure with a first chain of conjugated diene repeating units and a second chain derived from a macromonomer containing a compound with a specific structure. The first and second chains are coupled by a derived unit from an alkoxysilane-based modifier. The modifier contains an amine group that improves filler interaction. The polymer preparation involves reacting the modified first chain with the macromonomer to create the graft structure. The polymer has high N content from the amine groups and improved filler affinity.

Source

Rubber composition for tire treads with improved wear resistance, suitable for heavy-duty truck tires. The composition uses a specific ratio of natural rubber to styrene-butadiene rubber (70:30 or more), along with high surface area silica and carbon black fillers. Process aids like resins, waxes, and liquid plasticizers are used. The cure package contains ultra-accelerators like BDBZTH. This composition provides better wear performance in tires compared to conventional formulations.

Source

Tire design to balance wear life and cut resistance in construction and mining tires. The tire has narrow grooves in the tread to increase rubber volume and wear life. However, narrow grooves can lead to cut separation between the tread and belt due to road cuts. To address this, the tire has a unique groove configuration in the center of the tread. The center groove has a tapered section that gradually widens towards the base, followed by a wide straight section. This design provides initial rubber volume for wear resistance, but in the middle of wear when cuts are more likely, the wide straight section appears to prevent separation between the tread and belt.

Source

ABSTRACT As the global transportation industry evolves, there is a rapid surge in market demand for engineering tires. Nevertheless, working environment becoming increasingly complex and challenging, tires are now subject to more stringent performance requirements, including reduced rolling resistance, decreased heat generation, enhanced wear cut resistance. In this work, type of Eucommia ulmoides gum (EUG)/natural rubber (NR)/styrenebutadiene (SBR) nanocomposite was effectively prepared with silica as nanofiller. Subsequently, epoxidized natural (ENR) introduced into EUG/NR/SBR nanocomposites address issue agglomeration within enhance comprehensive nanocomposites. The relationship between ENR content further investigated. results demonstrate that reduces surface activity via hydrogen bond effect grafting reaction, thus enhancing dispersion. Moreover, at an 9 phr, dynamic temperature rise 25.2C volume abrasion 0.135 cm 3 1.61 km 1 , representing 12.2% reduction 21.1% decrease compared without ENR. This work develops innovative approach dispersion fillers EUGbased multifu... Read More

Source

Rubber composition for tires with improved wear resistance, wet performance, rolling resistance, and temperature dependency of rolling resistance. The composition contains a diene rubber with at least 55% of a specific styrene-butadiene rubber having a Tg of -50°C or lower. This rubber enhances silica dispersion, wear, and low rolling resistance. Additionally, the composition has a white filler of 30-100 parts, thermoplastic resin, and a silane coupling agent blended with the filler at 3-20 mass%. This balance improves dispersibility, reduces rolling resistance temperature dependency, and prevents gelling.

Source

Adducts between pyrrole derivatives containing sulfur atoms and sp2 hybridized carbon allotropes like carbon black, graphene, and nanotubes. The adducts improve elastomer reinforcement by enhancing compatibility between the filler and matrix. They can be obtained by reacting the pyrrole derivatives with the carbon allotropes. The adducts have applications in crosslinkable elastomer compositions for tire compounds. The process involves mixing the carbon allotrope and pyrrole derivative at room temperature. The adducts formed provide reduced Payne effect and improved reinforcement at high deformations compared to unreacted filler.

Source

ABSTRACT A facile strategy to improve silica dispersion and enhance the dynamic performance of silicafilled green tire treads is herein proposed. In this study, sulfurized (Z)sorbitan mono9octadecenoate (SS80) was synthesized characterized using Fourier transform infrared (FTIR) spectroscopy, gel permeation chromatography (GPC), liquid chromatographymass spectrometry (LCMS), elemental analysis. It confirmed that (S80) can react with sulfur form larger molecular weight SS80 disulfur or polysulfur bonds. subsequently used in conjunction bis (triethoxysilylpropyl)disulfide (TESPD) modify prepare silica/SSBR composites. Particle size analysis transmission electron microscopy (TEM) revealed incorporating reduced particle modified enhanced its composite. Dynamic mechanical analyzer (DMA), rubber process (RPA), tests demonstrated composites exhibit loss, modulus, improved wear resistance, maintained propertiesprimarily due dispersion. Overall, study provides a universal costeffective for enhancing dispersibility hydrophobic matrix.

Source

Rubber composition for tires with improved wear resistance, breaking strength, and processability. The composition contains a rubber component and carbon black with specific properties. The carbon black has an oil absorption number of 105-122 mL/100g, CTAB specific surface area of 130-153 m2/g, D50/Dst ratio of 0.75-0.88, oil absorption difference of 11-33 mL/100g, and hydrogen evolution of 2300-3500 ppm. This carbon black provides wear resistance and breaking strength while avoiding excessive structure and agglomeration for better processability compared to conventional carbon blacks.

Source

Tire tread rubber composition that improves wet braking, wear, and snow braking performance while maintaining fuel efficiency. The composition contains specific amounts of liquid polybutadiene, aluminum hydroxide, and vulcanizing agent relative to the total rubber. Using these optimized levels provides a tire compound that dramatically enhances wet grip, wear resistance, and snow traction compared to conventional rubber formulations.

Source

Passenger car tires (PCTs) usually consist of a silica/silane-filled Butadiene Rubber (BR) or Solution Styrene (SSBR) tread compound. This system is widely used due to improvements observed in rolling resistance (RR) as well wet grip compared carbon black-filled compounds. However, the covalent bond that couples silica via silane with rubber increases challenge recycling these products. Furthermore, this strong unable reform once it broken, leading deterioration tire properties. work aims improve negative aspects silica-filled compounds by developing novel coupling based on non-covalent interactions, which exhibit reversible feature. The formation new was accomplished reacting and phenolic resin order obtain simultaneous interactions hydrogen bonding. reaction performed using two different silanes (amino epoxy silane) an alkyl phenolformaldehyde resin. implementation resulted improved crosslink density, better mechanical performance, superior fatigue behavior, similar indicator.

Source

Tire design with improved stability and wear resistance. The tire has a tread layout with alternating narrow laterally elongated blocks (first crown blocks) between wider longitudinally elongated blocks (second crown blocks). This configuration reduces sideslip while enhancing wear resistance compared to a continuous narrow block tread. The narrow first crown blocks are interspersed between wider second crown blocks that overlap in the circumferential direction. The first crown blocks have shorter width than length, while the second crown blocks have longer width than length.

Source

A method to make uniformly cured high-modulus graphene oxide/natural rubber tires that have improved wear resistance and tear strength. The method involves optimizing the vulcanization process for thick rubber tires using specific ingredient ratios. It balances internal and external rubber cure to prevent over or under vulcanization. The ratios are: 0.5-5% graphene oxide, 40-120% carbon black, 1-20% activator, 1-20% softener, 1-10% anti-aging agent, 1-10% antioxidant, 1-20% vulcanization accelerator, 1-20% vulcanizing agent, and 1-20% interface modifying agent.

Source

A tire with a small diameter that provides wear resistance and noise reduction. The tire has specific dimensions and tread groove distribution to balance wear and noise performance when used on small diameter vehicles like electric cars. The tire outer diameter is 200-660 mm and total width is 100-400 mm. The tread has a groove area ratio of 0.008-0.150% of the tire diameter. The inner region from 48% of the width inward has a higher groove area than the outer region. This tread design reduces noise and improves wear on small diameter tires.

Source

Heavy duty pneumatic tire with improved wet traction and wear resistance. The tire has a zigzagging crown circumferential groove and a zigzagging shoulder circumferential groove. Adjacent crown lateral grooves connect the crowns to shoulders. The crown blocks have smaller sub-grooves with fewer, shorter transverse grooves compared to the wider lateral grooves. This configuration provides enhanced wet traction from the zigzagging main grooves, while the smaller sub-grooves prevent excessive wear.

Source

Rubber composition for tires that provides improved wet grip, wear resistance, and low heat degradation compared to conventional tire rubbers. The composition contains specific amounts of silica, surface-treated aluminum hydroxide, styrene-butadiene copolymer, liquid SBR, tackifier resin, and optionally a silane coupling agent. The silica has a nitrogen adsorption specific surface area (N2SA) of 100-300 m2/g and a N2SA/CTAB specific surface area (SSA) of 1.10 or less. The surface-treated aluminum hydroxide improves wet grip. The styrene-butadiene copolymer with high styrene content provides wear resistance. The liquid SBR with high vinyl content and unmodified tackifier resin enhance wet grip. The composition also contains a sil

Source

Rubber composition for tire treads that provides improved wet performance while maintaining snow and wear characteristics. The composition contains specific amounts of polybutadiene, styrene-butadiene rubber, silica, organosilane coupling agent, processing oil, resins, and curing agents. The rubber formulation balances wet traction, snow traction, and wear resistance through the selected rubber components and curing package.

Source

Additive composition for improving properties of silica-filled rubber compounds in tires, such as fuel economy, traction, and wear resistance. The composition comprises a reaction product of fatty acid and polyamine. It is added to silica-filled rubber compounds, like tire treads, at low parts per hundred (phr) levels. The additive enhances silica dispersion and reduces payne effect, without affecting key rubber properties like viscosity, scorch, hardness, tensile strength, elongation, abrasion, and modulus. This enables improved tire performance, including lower rolling resistance, enhanced winter/dry traction, and better dry handling, without compromising other properties.

Source

Silica-filled natural rubber compositions for tire treads that provide improved properties like tensile strength, tear resistance, wear resistance, and impact resistance compared to traditional natural rubber treads. The compositions contain natural rubber, functionalized synthetic polyisoprene, and a silica filler. The functionalized synthetic polyisoprene has silica-interactive functional groups that impart polymer-filler interaction to the natural rubber domains in the composition, resulting in enhanced properties from both the natural rubber and the functionalized synthetic polyisoprene.

Source

Rubber composition for high mileage truck tires with improved wear resistance and aging properties. The composition contains a specific combination of curing accelerators - sulfenamide, dithiocarbamate, and thiazole/thiuram polysulfide accelerators - along with natural rubber, polydiene rubber, carbon black, and a curative system. This accelerator blend provides optimal tire wear and aging without significant loss in other properties like processing.

Source

Rubber composition for tire treads that balances low rolling resistance and good wear resistance in heavy-load tires. The composition contains diene rubber with at least 50% natural or isoprene rubber, carbon black with a specific surface area of 80-150 m2/g, and silica with a specific surface area of 120-250 m2/g. The silica content relative to carbon black (silica/carbon black ratio) should be greater than 1.

Source

Rubber composition for tires with improved durability, heat resistance, and abrasion resistance when traveling on rough roads, especially for heavy-duty tires. The composition contains predominantly isoprene rubber (60% or more) along with a small amount (0.1-5.0 parts per 100 parts rubber) of a specific compound represented by formula (1). The composition also has a balance of 40-80 parts carbon black and 30% or less silica based on the total filler load. The low filler density, high isoprene rubber content, and specific compound improves durability and heat resistance without sacrificing abrasion resistance.

Source

Rubber composition that improves wear resistance and chipping resistance. The composition includes silica and zinc oxide, which have a specific relationship between CTAB specific surface area and DBP oil absorption, into rubber including isoprene rubber.

Source

Tire tread design with sipes that maintain performance as the tire wears. The tread has sipes with three different depths, forming three levels in the tread blocks. The shallowest sipes are at the top level and the deepest sipes are at the bottom level. This allows the sipes to maintain their biting edges and void volume as the tread wears down, improving wet and snow traction over the life of the tire. The staggered depth levels also prevent damage or tearing when the mold is removed from the tread during manufacturing.

Source

Tire construction for a motorcycle tire that provides improved turning performance and durability compared to conventional motorcycle tires. The tire has a tread reinforcing layer with specific belt and band ply orientations and widths. The inner belt ply has cords angled greater than 5 degrees to the tire circumferential direction. The outer belt ply has cords angled greater than 5 degrees but with a wider width than the inner belt ply. The band ply has cords angled less than or equal to 5 degrees. This combination of belt and band ply angles and widths optimizes cornering force distribution and reduces tire wear for improved turning performance and durability.

Source

A tire with zigzag sipes in the tread that allows for better traction on snow and ice when the tire is worn. The zigzag sipes have a changing amplitude from the sipe opening to the maximum depth, with the maximum amplitude not at the opening. This ensures that as the tire wears, the exposed sipe edges still provide biting edges for traction.

Source

A compound that improves the abrasion resistance of rubber compositions such as tires. The compound is a trisulfide with specific substitution patterns on the sulfur atoms.

Source

A tire with improved resistance to chipping on bad roads at high speed. The tire has a tread with one or more circumferential main grooves that bend and deviate at a bending point. The rubber composition of the tread has specific properties - tan delta at 20C of 0.30 or less, breaking strength at 175C times elongation at 175C divided by 2 equal to or greater than 600.

Source

Tire with improved grip on rocky and snow/mud surfaces while maintaining block durability. The tread has crown blocks with a chamfered outer edge surrounding the ground contact surface. The interior of the block has step-shaped bends in its cross-section. This design allows the blocks to shear through snow and mud for traction on soft surfaces, while also providing bending rigidity to improve durability.

Source

Tires with an improved sipe design that enhances wet and dry performance without sacrificing wear resistance. The sipes have chamfered edges and raised bottoms. The chamfers are shorter than the sipe length and overlap slightly. The maximum depth of the chamfered portion is between 0.2 to 0.5 times the sipe depth. The sipe width is constant from the chamfer end to the groove bottom. This design balances wet traction from the chamfers and dry stability from the sipe. It also maintains sipe rigidity and wear resistance.

Source

Tire with multilayer tread design that maintains grip on wet surfaces even when worn to legal limits. The tread has an intermediate layer between the base and outer layers. The modulus ratio between the base and intermediate layers is 7-25. The viscoelastic loss ratio between the intermediate and outer layers is at least 30%. The radial thickness ratio between the outer and intermediate layers is 3-10. By optimizing the properties of these three layers, the tire keeps wet grip performance as it wears. The intermediate layer properties transition between the base and outer layers to maintain key performance.

Source

Tire tread design that maintains cornering and traction performance as the tread wears. The tread has sipes with an outer sipe element in the outer tread region and multiple inner sipe elements in the inner tread region. The inner sipe elements have a component that extends circumferentially. As the tread wears, the circumferential component of the inner sipes becomes exposed. This maintains flexibility and biting edges in the worn tread, improving cornering and traction performance compared to traditional sipes that lose effectiveness as the tire wears.

Source

Polymer composition for tires that improves rolling resistance, wet grip, and wear compared to conventional low hysteresis polymers. The composition contains specific diene-based polymers. One polymer has low aromatic vinyl content and modification with a polar group having affinity for the filler. The other polymer has medium aromatic vinyl content, vinyl content, and peak molecular weight. This dual polymer system provides the desired low rolling resistance without sacrificing wet grip and wear performance.

Source

A pneumatic tire design with improved flat spot resistance and high-speed durability. The tire has an optimized belt layer construction and bead design. It features a band layer with separate inner radial bands in each tread land. The inner radial bands have edges set back from the nearest groove to reduce strain. This reduces flat spots from band deformation when parked. The tire also has shorter outer bead apex height to limit sidewall deformation. The optimized belt and bead design balance flat spot resistance with high-speed durability.

Source

Tire that suppresses early abrasion under a condition that a large force is applied for a long time during low-speed running and improves abrasion resistance. The tire comprises a tread, a first layer whose outer surface constitutes a tread surface, a second layer located on the innermost side in a tire radial direction, and a filler that comprises particulate carbon black and silica, wherein an average primary particle size of the particulate carbon black is 19 nm or less.

Source

Tire rubber compositions with improved wear resistance without sacrificing rolling resistance. The compositions use a reinforcing filler predominantly comprising a filler covered at least partially by silica, like silica-coated carbon black. The filler dispersion in the rubber matrix is optimized to be uniform without using a coupling agent. The compositions also minimize plasticizers. Removing coupling agents and plasticizers improves the reinforcing properties of silica-covered fillers for improved tire wear.

Source

A rubber composition for tire tread that balances rolling resistance, wet road braking, and wear performance. It uses silica as a filler to disperse well and improve wet grip. To balance rolling resistance, it contains a low molecular weight neodymium-catalyzed butadiene rubber with narrow chain distribution. The composition also includes lithium catalyst butadiene rubber for improved rolling resistance and wear. The specific filler ratios are: 5-50 parts silica, 5-50 parts carbon black, 10-30 parts styrene-butadiene rubber or 10-30 parts neodymium-catalyzed butadiene rubber, and 10-20 parts lithium catalyst butadiene rubber.

Source

Tire design with zigzag sipes in tread blocks to improve tire life and wet performance. The sipes have specific dimensions and angles to optimize performance. The zigzag sipes have a wavelength and amplitude that oscillate while maintaining the zigzag shape. The sipes also have a slope angle and orientation relative to the tire axial direction. This zigzag pattern allows the sipes to engage and enhance block rigidity during cornering, reducing block deformation and wear. The optimized zigzag sipes balance block stiffness for longer life with wet grip by allowing sipe flexure.

Source

Tire rubber composition that can improve the overall performance of wear resistance during high-speed running and steering stability maintenance performance during repeated running. The composition includes a styrene-butadiene rubber, silica, carbon black, and a plasticizer containing a liquid polymer, wherein the silica content is greater than 25 parts by mass with respect to 100 parts by mass of the rubber component.

Source

Rubber compounds for heavy-duty truck and bus tire treads that provide reduced rolling resistance and improved wet skid resistance and wear compared to conventional tire tread compounds. The rubber compounds contain a blend of long chain branched cyclopentene ring-opening rubber (LCB-CPR) along with natural rubber (NR) and/or polybutadiene rubber (BR), reinforcing fillers, and process oil.

Source

Rubber composition for tire tread that provides excellent wear resistance, low fuel economy, and braking performance on wet roads. The composition contains specific amounts of two types of solution-polymerized styrene-butadiene rubbers with different glass transition temperatures, reinforcing filler, silane coupling agent, functionalized liquid polymer, and resins with different glass transition temperatures.

Source

Tire with center land portion having zigzag narrow groove and lateral grooves to improve wet performance and uneven wear resistance. The zigzag narrow groove improves drainage and wet grip. The lateral grooves connecting to different sides of the zigzag groove maintain rigidity for better wear resistance.

Source