Silica Fillers in Tire Compounds

Method to increase the bulk density of low bulk density materials like fumed silica without forming agglomerates, grit, or altering absorption properties. The method involves gently mixing the low bulk density material with a liquid, like water or acid, to create a homogenous, densified material that retains its powdery form and dispersibility. The liquid is evaporated to leave behind the denser product. This avoids issues like over-densification, agglomeration, and reduced dispersion when using mechanical methods.

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Battery assembly design to prevent thermal runaway propagation and mitigate fires in battery packs. The assembly has battery cells, a bus bar, a case, and a solid filler inserted between the cells and bus bar. This filler prevents hot gas escape and channels it through intended paths. It also fills empty spaces between cells and bus bar to prevent heat propagation. By adding this filler step in battery assembly, it reduces fire risks in packs by containing thermal events and preventing fire spread.

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Controlling the morphology of precipitated silica by using polycation-polyanion phase separation. The process involves mixing oppositely charged polymer ions with silicon sources to induce silicification. The polymer dense phase formed by phase separation provides a distinct environment for silica precipitation. This enables regulating the silica morphology by tuning the polymer concentration and ionic strength.

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Battery pack assembly with thermal suppression system to mitigate thermal runaway propagation in battery packs. The system uses a container filled with a mixture of agents that gets released during thermal events. The mixture includes sodium silicate, ceramic-based compounds like zirconium dioxide, aluminum oxide, silicon dioxide, melamine poly(zinc phosphate), and aluminum tri-hydrate. The agents help suppress thermal events from spreading through the battery pack by absorbing heat and suppressing chemical reactions.

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With the growing demand for highenergydensity lithiumion batteries, SiO has emerged as a promising anode material due to its high specific capacity. However, use entails irreversible losses and mechanical stress. Prelithiated (LiSiO) blended with graphite enables electrodes rather low losses, capacity, less such electrode formulations need further research, particularly implementing largescale production process. This work deals Gr/SiO negative containing 20 wt% in active mass. We investigate effects of different suspension on their rheological properties electrochemical performance electrodes. Our findings prove superior anodes made from LiSiO compared pristine SiO. we show that basicity suspensions causes challenges processability. The integration singlewalled carbon nanotubes is shown be essential counteracting adverse enabling enhanced adhesion, reduced stable cycling. A good cell demonstrated much 96.8 % provide insights into correlation between formulation, processability, blends, supporting development industrialscale processes.

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A heat-conducting, flame-retardant material that can be used as a sealing compound for battery cores. The material is a liquid, colloidal, or semi-solid composition containing silicon dioxide, a foaming-reactant, and a catalyst. The silicon dioxide provides initial heat conduction. The foaming-reactant crosslinks and expands when heated, filling gaps and blocking heat transfer. The catalyst triggers the foaming reaction. This material prevents overheating, explosion, and extended combustion in batteries.

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Rubber compositions for vehicle tires that balance wet performance, rolling resistance, and wear resistance. The compositions contain a filler system with two different silicas. One is a surface-functionalized silica with specific surface areas of 250-310 m2/g and 230-285 m2/g. The other is an unfunctionalized silica with specific surface areas of 60-120 m2/g and 55-105 m2/g. This blend of silicas improves wet grip, rolling resistance, and wear resistance compared to similar filler systems using only one type of silica.

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Rubber mixture for tire treads with improved properties like rolling resistance, grip, and tear resistance. The mixture contains a specific type of styrene-butadiene rubber (SSBR) with a glass transition temperature between -35°C and -85°C. This rubber is combined with silica filler and a specific amount of a silane. The silane has a formula with a thioacetate or thiopropyl group (X) bonded to a silicon atom (Si) and a propyl group (R) with a siloxane (S) bond between them. The silane amount is 1-30 parts per hundred parts of rubber (phr). The mixture can be used in tire treads for vehicles to provide better balance of properties like rolling resistance, grip, and tear resistance compared to conventional tire tread compositions.

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Rubber composition for tires that provides improved rolling resistance, wet grip, and handling compared to conventional tire rubbers. The composition uses a blend of natural rubber, polybutadiene rubber, and two different solution-polymerized styrene-butadiene rubbers with specific glass transition temperatures. It also contains two silicas with different surface areas, along with coupling agents. The composition enables optimizing winter performance without sacrificing rolling resistance, by balancing silica-filler interactions and silanization. The cross-linkable composition can be used in tire treads, and the cross-linked tire has improved properties like rolling resistance, wet grip, and handling.

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Tire rubber composition for improved wet grip and fuel efficiency. It contains a specific combination of rubber components, hydrogenated resin, silica, and carbon black. The rubber components are isoprene-based and modified styrene-butadiene rubber with high styrene content (30% or more). The hydrogenated resin has a high softening point (100°C or above) and moderate molecular weight (1200-1600 g/mol). The silica loading is 50-100% of the total filler content. This composition balance provides optimal wet grip and rolling resistance.

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Rubber composition for tire treads that provides a balance of low rolling resistance, good wet traction, and wear resistance. The composition contains specific diene rubber, silica, a silane coupling agent, a fatty acid metal salt, and an alkylsilane. The diene rubber has a high percentage of a specific conjugated diene rubber formed by reacting a siloxane with a diene-based polymer. This improves silica dispersion for rolling resistance. The alkylsilane plasticizer suppresses silica aggregation. The fatty acid salt further aids silica dispersion. The blend ratio of these components provides a balance of rolling resistance, wet traction, and wear resistance.

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Rubber compound for tire treads that improves wet grip, rolling resistance, and profile stiffness. The compound contains a functionalized butadiene rubber, a liquid-modified diene polymer, a polar filler like silica, and a diene rubber. The functionalized butadiene rubber interacts with the polar filler. The modified diene polymer has a backbone modification that also allows interaction with the polar filler. This filler-rubber interaction improves wet grip and rolling resistance while maintaining stiffness.

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Tire rubber composition that provides improved wet grip and fuel efficiency. The composition contains an isoprene skeleton rubber, a modified styrene-butadiene rubber with 15% or less bound styrene, hydrogenated resin with a softening point over 100°C and Mw of 1200-1600, silica with 50-100% filler content, and carbon black. This balance of components enables optimized wet traction and reduced rolling resistance.

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Rubber composition for tires that balances wet grip, fuel efficiency, and wear resistance. The composition contains a styrene-butadiene rubber (A) with a modified terminal group, and an unmodified styrene-butadiene rubber (B) with a higher glass transition temperature. The modified rubber (A) is produced by modifying an active polymer with a compound containing a silicon atom bonded to an amine group. This improves dispersion of fillers like silica for better wet grip and wear resistance. The unmodified rubber (B) provides the balance of fuel efficiency.

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Rubber composition for tires with improved steering stability, wet performance, and low rolling resistance over a wide temperature range. The composition contains specific amounts of modified styrene-butadiene rubber, silica, thermoplastic resin, and a silane coupling agent. The modified styrene-butadiene rubber has a vinyl content of 9-45 mol% and a glass transition temperature of -45°C or lower, with terminal groups containing siloxane or amine functionalities. The composition also has silica, thermoplastic resin, and a silane coupling agent in specific ranges.

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Rubber composition for tire treads that provides improved wet grip and rolling resistance compared to conventional tire rubber compositions. The composition contains a diene elastomer, a high surface area silica (Tl > 100 m2/g) as the main reinforcing filler, a microsilica (T2 < 50 m2/g) as a secondary filler, a silane coupling agent, and a crosslinking system. The microsilica in addition to the high surface area silica enhances wet grip and reduces rolling resistance compared to using just the high surface area silica.

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Low-rolling-resistance high-wear resistance tire tread rubber composition that can improve the dispersion of white carbon black in tread rubber and the processability of rubber materials by using white carbon black and silica fume as fillers and selecting a silane coupling agent capable of mixing at high temperature. The composition includes carbon black and white carbon black as fillers, and selecting a silane coupling agent capable of mixing at high temperature.

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Pneumatic tire with improved durability and wear resistance by using a specific silane coupling agent in the tread rubber. The coupling agent is represented by a formula with a specific alkyl group, alkoxy group, and substitution on the silicon atom. This coupling agent provides enhanced durability and wear resistance when used in tire tread rubber containing silica as a reinforcing filler. The formula is: (R1)3Si(OR3)x, where R1 is an alkyl group with 5 to 20 carbon atoms, n is 1 to 3, and x is 1 to 5.

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Rubber composition that is excellent in wet grip performance and low rolling resistance. The composition includes an isoprene skeleton rubber and a styrene-butadiene rubber, the filler contains at least silica, the silane coupling agent has a thiol group, the content of the silane coupling agent is 1 part by mass or more and 10.5 parts by mass or less with respect to 100 parts by mass of the rubber component, and the content of the fatty acid metal salt is 0.1 part by mass with respect to 100 parts by mass of the rubber component.

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Tire tread composition with improved properties like reduced rolling resistance, stiffness, and tear without compromising other performance metrics like traction, wear, and tensile strength. The composition uses a specific combination of silane coupling agents along with a diene rubber and silica filler. The silane agents include bis(dialkylalkoxysilyl-alkyl) polysulfide coupling agents. The agents improve silica dispersion and compatibility in the rubber matrix. This leads to better processing, reduced agglomeration, and enhanced rubber properties like hysteresis and stiffness without impacting tear and strength.

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