Tire Grip Enhancement

Rubber composition for tire treads that improves mechanical properties, wet and snow performance, cornering coefficient properties, and/or wear performance. The composition contains natural or synthetic rubber, a high surface area silica filler, and a specific polysulfide polymer. The polysulfide has a formula with a thioplast group connected to a polymer chain. The polysulfide amount is 1-20 phr. This composition provides balance of tire properties like stiffness, grip, and wear compared to traditional rubber compounds.

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Racing tire tread with improved wet grip and electrical conductivity. The tread has an outer layer made from a rubber composition containing styrene-butadiene rubber, silica, resin, and low carbon black. This layer provides wet grip. The inner layer is partially covered by the outer layer and uses a higher carbon black content rubber composition. This inner layer provides dry grip. The lower carbon black outer layer enables electrical conductivity through the tread for improved electrical grounding during racing.

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Functionalizing polydiene polymers like styrene-butadiene rubber (SBR) by modifying the backbone using silylating grafting agents. The grafting agents are synthesized by reacting siloxanes, compounds with a vinyl group and substituent, and a catalyst. The grafting agents are then used to hydrosilylate the polymer post-polymerization, incorporating multiple functional groups on the backbone. This improves properties like rolling resistance, wet traction, and filler interaction.

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Cured rubber compositions for tires with improved properties like filler dispersion, lower rolling resistance, and better snow traction. The compositions contain silylated polydiene polymers derived from diene monomers like styrene and butadiene. The silylation involves grafting a silylating agent with a functional group onto the diene polymer. The silylated polydiene polymer improves tire compound performance when cured.

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Tire with improved drainage performance as tire wear progresses. The tire has multiple circumferential main grooves on the tread surface. The main grooves have a unique shape with a stepped profile. The stepped profile has a shallower section near the tread edge that transitions to a deeper section further inward. This design helps prevent water from accumulating in the shallower section as wear reduces the tread height. The deeper section provides adequate drainage even with reduced tread depth. This prevents hydroplaning and improves wet grip as the tire wears.

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An all-terrain off-road tire with a unique tread pattern that provides improved traction on uneven surfaces. The tread has a central section with a longitudinal block flanked by symmetrically arranged pentagonal blocks. The central section also has alternating V-shaped and inverted V-shaped blocks. The tire also has two sets of side sections with symmetrically arranged blocks. This pattern provides a connected interlocking tread that grips and sheds debris for better off-road performance.

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A new pattern design for tires to improve grip and wear performance on electric vehicles. The tire has longitudinal grooves, transverse steel sheets, and second pattern blocks. The grooves, sheets, and blocks divide the tread into first pattern blocks. Steel sheets are distributed around each block. This configuration provides higher grip and wear compared to conventional tires, especially for electric vehicles with instant torque and heavy loads.

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A tread pattern design for all-steel load tubeless radial tires that provides good traction, wear resistance, and stone and water ejection performance. The pattern consists of nine equal-part segments with alternating hexagonal and pentagonal blocks in the center and sides, separated by longitudinal and transverse grooves. The transverse grooves have protruding blocks to improve stone and water ejection. This deep groove mixed pattern provides good drivability and wear resistance.

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A tractor tire design that can be used in both flood and drought conditions without needing to switch tires. The tire has a tread with herringbone patterns and reinforcing ribs. The herringbone pattern provides grip and traction in muddy rice fields, while the reinforcing ribs prevent damage to crops when driving on dry land. The herringbone pattern depth is 48-49mm, the reinforcing rib thickness is 7-8mm, and width is at least 1/3 of the tire width. The tire can transition between flooded rice fields and dry land without needing to swap tires.

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High-performance tire tread pattern for medium and short distance mixed roads that provides improved grip, stability, and durability compared to conventional patterns. The tread has alternating rows of large pattern blocks flanked by longitudinal grooves. The large blocks have transverse grooves. This configuration provides rigidity, grip, and heat dissipation while preventing block deformation. The shoulder has a dedicated groove.

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A low rolling resistance tire with improved braking performance. The tire has a tread with specific patterns and grooves arranged in a specific configuration. The tread has four longitudinal grooves and fixed patterns including a first pattern, a second pattern, a third pattern, a fourth pattern, and a fifth pattern. The tread has three crown rubbers, first, second, and third. This unique pattern and groove arrangement on the tread along with the three crown rubbers helps balance dry braking distance and rolling resistance.

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An all-weather radial tire with a tread pattern that provides snow traction like a winter tire and dry road handling like a summer tire. The tread has four circumferential grooves and five blocks arranged along the tire circumference. The blocks are spaced and have widths between 85-89% of the widest block. The grooves curve around the tire circumference. This pattern provides snow performance like a winter tire with the dry road handling and rolling resistance of a summer tire.

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A heavy-duty tire design with integrated anti-skid features to prevent stone trapping and damage. The tire tread has a center crown section with inner anti-skid grooves, and outer shoulder sections with outer anti-skid grooves. This replaces the traditional separate anti-skid blocks. The integrated anti-skid grooves reduce gaps between blocks and prevent stones from getting caught in the tread. The crown and shoulder anti-skid features cooperate to provide grip without stone trapping.

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Tread pattern design for all-steel radial tires that improves traction, braking, wear resistance, heat dissipation, and reduces noise compared to conventional patterns. The tread is divided into nine equal parts with staggered transverse and longitudinal zigzag grooves. The grooves vary in depth and have arched bottoms. Mahjong-shaped blocks with decorative 5-shaped and hook grooves are distributed symmetrically. This asymmetric pattern creates a muffler cavity to reduce noise.

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High-performance snow tire with improved grip on a variety of winter road conditions like snow, ice, and slush. The tire has an alternating pattern block and longitudinal groove layout. The pattern blocks are staggered left to right: left shoulder, left secondary, center, right secondary, right shoulder. Longitudinal grooves are between adjacent blocks. This configuration allows better snow and slush evacuation compared to traditional snow tire layouts. The alternating block and groove sequence improves traction on packed snow and slush, while the staggered blocks aid in snow shedding.

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All-season high performance tire pattern with improved wear resistance and traction. The pattern has a central block with separate steel sheets forming a disconnected spacing structure to increase rigidity and wear resistance. The central block also has connected steel plates forming a multi-corner structure for better road contact and traction. This combination of disconnected spacing and connected corners improves wear and grip for all-season high performance tires.

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Bionic tire pattern and tire design that improves grip performance by taking inspiration from nature. The bionic tire pattern has continuously distributed pattern blocks along the tread circumference, with grooves between adjacent blocks. The pattern resembles a natural texture found in surfaces with high friction, like gecko feet or tree bark. The continuous block arrangement provides uninterrupted contact with the road, while the grooves prevent block separation. This bionic pattern enhances grip compared to traditional tire patterns.

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A high-performance radial agricultural tire design with improved traction, drainage, wear, and durability compared to conventional agricultural tires. The tire has a unique pattern with specific features. The tread has a main pattern called the No. 3 pattern that is a herringbone shape. Smaller patterns called the No. 2 pattern are "spike"-shaped blocks between the herringbone blocks. These smaller spike patterns connect to a larger block called the No. 1 pattern on the outer edge of the tread. This configuration provides better traction, drainage, and wear resistance compared to a single flat pattern. The tail of the tire has a heat dissipation groove.

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A tire tread pattern for engineering radial tires that reduces wear, prevents stone trapping, and improves traction and self-cleaning. The tread has a central groove intersecting with an inverted Z-shaped groove to form a crown block. The shoulder has main grooves extending inward with a two-stage incline width increase from center to shoulder. This design prevents stone retention, reduces wear, improves traction, and aids in self-cleaning.

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Car tire with low rolling resistance and excellent braking performance achieved through optimized tread design. The tire has five pattern blocks and four longitudinal grooves. The longitudinal groove design is optimized to reduce braking distance. This involves adjusting the longitudinal groove parameters based on a coefficient to improve braking performance without increasing rolling resistance. The transverse pattern blocks remain unchanged.

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