Techniques for Reducing Tire Road Wear Particulate Emissions

Rubber composition for tire treads that improves wear resistance. The composition contains modified and unmodified butadiene rubbers in specific proportions along with carbon black with specific physical properties. The modified butadiene rubber content is 5% or more and the unmodified butadiene rubber content is 10% or more. The carbon black has a cetyltrimethylammonium bromide adsorption specific surface area (CTAB) of 130 m2/g or more, a CTAB/iodine adsorption ratio of 0.92 to 1.06, and a hydrogen release amount of 3,500 to 4,800 mass ppm. Using this composition in tire treads provides improved wear resistance compared to conventional tread rubber compositions.

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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.

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Rubber composition and tire design to reduce wear during low-speed applications like stop-and-go driving. The rubber composition contains a specific blend of isoprene, butadiene, and styrene-butadiene rubbers, along with a filler mix of fine carbon black and silica. The carbon black has an average particle size of 19 nm or less. This composition provides improved wear resistance when a high contact force is applied for long times at low speeds. The tire design incorporates this rubber compound into the tread layers. It includes a top layer with the specific rubber blend, sandwiched between inner layers. This configuration helps prevent premature wear during stop-and-go driving conditions.

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A tire with improved wear resistance at high speeds. The tire has a specific composition for the tread rubber, with controlled amounts of polymer and ash, along with a maximum thickness on the equatorial plane. The polymer content (PC) is 55% by mass, the ash content (Ash) is 25% by mass, and the equatorial plane thickness (G) is 10 mm or less. This combination improves wear resistance during high-speed running compared to conventional tires.

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Tire with improved wear resistance during high-speed running. The tire has a tread rubber composition with specific components and properties. The rubber contains isoprene and styrene-butadiene rubbers, small primary particle size silica, and a resin. The rubber composition has controlled amounts of polymer and extractable material. The tire tread thickness also plays a role. This composition and thickness range improves wear resistance during high-speed operation.

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Heavy duty pneumatic tire with improved wear resistance for trucks and buses. The tire has a tread made with a specific rubber composition containing carbon black with high surface area, small particle size, and specific additives. The rubber composition has a carbon black with an average particle size of 20 nm or less and a cetyltrimethylammonium bromide (CTAB) adsorption specific surface area of 100 m2/g or more. It also has a land ratio of 81% or more in the tread. This composition helps achieve a wear resistance figure of merit of 140 or more. The tire provides better wear life compared to conventional heavy duty tires.

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Tire with improved wear resistance and adhesion compared to conventional tires. The tire has a tread with hard granules embedded in the wear surface. The granules are treated with low-temperature plasma to enhance adhesion to the tread. An adhesive is applied to the tread strip before the granules are added. This sequence of treating the granules, applying adhesive, and embedding them improves adhesion compared to adding granules directly to the tread.

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Rubber composition for engineering tire treads that improves tire durability and reduces wear compared to conventional rubber compounds. The composition contains specific additives like carbon black, silicon, modified resin, and a fatty acid salt compound. The additive combination provides better properties like stiffness, abrasion resistance, dispersion, and tear strength compared to standard tire rubber.

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White carbon black filled tread rubber composition for tires that provides wear resistance comparable to carbon black filler while improving wet grip and rolling resistance. The composition uses a combination of emulsion polystyrene-butadiene rubbers, solution polystyrene-butadiene rubbers, polybutadiene rubber, white carbon black, silane coupling agents, and other standard rubber ingredients. The mixing method involves blending the components in a specific sequence and order to optimize dispersion and compounding. The resulting white carbon black filled tread rubber provides superior wear resistance compared to traditional carbon black filled tires, while also improving wet grip and rolling resistance.

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Tire for a vehicle that reduces fine dust emissions from vehicles with tires. The tire is manufactured of a tire matrix with a branched microstructure with microcracks and / or is interspersed with fibers with a diameter between one nanometer and one hundred micrometers, the fibers being a have higher abrasion resistance than the tire matrix, so that even when the fibers and the tire matrix wear off, the fibers protrude from the tire matrix and are in contact with the road surface when the tire rolls, and / or where to reduce the emission of fine dust from the tire and to reduce Existing fine dust on the roadway.

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A wear-resistant tire rubber composition that improves tire durability and extends service life. The composition contains natural rubber, styrene-butadiene rubber, carbon black, modified silicon carbide, sulfur, accelerator, zinc oxide, stearic acid, antioxidant, and paraffin wax. The modified silicon carbide is prepared by dispersing silicon carbide in water, adding dopamine, adjusting pH, and freeze drying or spray drying. The modified silicon carbide replaces some carbon black, provides higher wear resistance, and reduces rolling resistance. The modified silicon carbide also has improved compatibility with the rubber matrix due to a thin surface coating layer.

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High-wear-resistance tread rubber for all-steel truck radial tires that provides improved wear resistance without compromising other tire properties like puncture resistance and chipping resistance. The tread formula uses a specific combination of rubber components to achieve this. It includes cis-1,4-polyisoprene rubber, cis-butadiene rubber with high cis content, carbon nanotubes or a pre-dispersed masterbatch of carbon nanotubes and cis-butadiene rubber, and ultra-abrasion-resistant carbon black with high specific surface area. This composition balances wear resistance with other tire properties like puncture resistance and chipping resistance.

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An environmentally friendly wear-resistant tire using recycled tires as the main material. The tire has an outer tread that contacts the road and an inner tread bonded to the outer tread. The inner tread is made from recycled tires. The inner tread helps reinforce the outer tread for improved wear resistance while utilizing waste material.

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Rubber composition for tire treads that improves elasticity, cut resistance, fracture resistance, and wear resistance in a balanced manner while reducing rolling resistance. The composition contains natural rubber, polyisoprene, and optionally polybutadiene rubber as the base. It also has an inorganic filler with specific properties like a repose angle of 40 degrees or more, BET surface area of 10 m2/g or more, and DBP absorption of 2.0 or more. This filler combination improves elasticity, cut/chipping resistance, fracture resistance, and wear resistance of the vulcanized rubber in a well-balanced manner, while reducing heat generation. The composition can further contain reinforcing fillers, vulcanization agents, etc.

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Rubber compositions for filling tire tread cavities that prevent cracking and premature wear. The compositions have a unique combination of high and low Tg diene elastomers along with a high loading of reinforcing filler and a lower loading of non-reinforcing filler. This allows the compositions to fill cavities without cracking or premature wear when the tire rolls. The high Tg elastomer provides reinforcement while the low Tg elastomer maintains flexibility. The high reinforcing filler load compensates for the reduced reinforcement from the lower filler load.

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Rubber composition for tire treads that provides high resistance, good wear, and low rolling resistance for fuel efficiency in all-steel tires. The composition contains natural rubber, synthetic rubber, and carbon black with specific surface area properties. The carbon black has a high surface area and small pore diameter. The carbon black specific surface area measured by mercury injection is at least 0.8 times the specific surface area measured by CTAB. This composition provides long tire life, low rolling resistance, and good wear in all-steel tire applications.

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Rubber composition for tire treads that improves grip and wear resistance while using less petroleum-derived materials. The composition contains zinc oxide particles with an average size of 200 nm or less. This reduces the amount of larger zinc oxide particles typically used as a vulcanization accelerator. The smaller particles improve grip and wear compared to larger zinc oxide. The composition also contains deproteinized natural rubber, epoxidized natural rubber, and silica filler. This allows replacing some conventional petroleum-based rubber components with renewable and recyclable materials.

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Rubber composition for tire treads that provides improved wear resistance without deteriorating rolling resistance. The composition contains a diene-based rubber, carbon black with specific properties, and conventional fillers. The carbon black satisfies a relationship between pore volume, oil absorption, and surface area. This allows improving wear resistance without increasing rolling resistance compared to conventional carbon blacks. The composition can be used in tire treads to provide better wear performance without sacrificing rolling efficiency.

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Rubber composition for heavy duty tires with improved wear resistance without impairing low heat buildup. The composition contains specific amounts of a modified natural rubber, carbon black, and silica filler. The modified natural rubber has a polar group content in the range of 0.001 to 0.5 mmol/g. The composition also has a tan delta value at 25°C below 166 and a glass transition temperature below -50°C. These properties optimize low rolling resistance and wear.

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Rubber composition for tire treads that improves wear resistance and lowers heat generation in heavy-duty tires without sacrificing cut and chip resistance. The composition uses a specific type of carbon black with a high structure and surface activity balance. The carbon black has a compressed dibutyl phthalate oil absorption (24M4DBP) of 105-115 ml/100g, indicating a high structure, and a nitrogen adsorption surface area (SA) and pore volume (IA) ratio of 1.25-1.30. This carbon black improves wear resistance and heat generation without negatively impacting properties like workability, cut resistance, and chip resistance.

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