Renewable Fillers for Tire Manufacturing

Recycling vulcanized rubber for reuse in new rubber compounds without breaking the polymer chains or degrading the properties. The recycling process involves biotechnologically modifying the rubber particles to selectively cleave the chains and functionalize the surface. This prevents chain scission and degradation during recycling. The modified rubber particles are then incorporated into new rubber mixtures to replace virgin rubber. The recycled rubber content can be up to 75% by weight. The modified rubber particles have functional carbonyl groups on their surface from oxidative cleavage of the rubber chains. This provides better integration as an active filler in the new rubber compounds compared to unmodified recycled rubber. The biotechnological modification avoids the high temperatures needed for devulcanization that can degrade the rubber.

Source

A tire tread rubber composition containing bio-based compound modified silica that improves dispersion and compatibility of silica in rubber compounds compared to traditional modification methods. The modification uses a bio-based lignin derivative with reactive functional groups that can react with silica. This reduces the silica's hydroxyl content to improve dispersion in rubber. The modification is done using a catalyst and acetylating agent in a simple one-step process. The modified silica can be used in tire treads without issues like gumming or scorching.

Source

A more sustainable tire design with reduced environmental impact by using recycled and bio-based materials in the tire components. The tire comprises a tread with a rubber composition containing recycled and bio-based styrene butadiene rubber, natural rubber, polyisoprene, silica, and bio-based or recycled hydrocarbon resin. The reinforced rubber plies have coatings with recycled or bio-based elastomers, fillers, and plasticizers. The bead can be made with recycled steel. The tread uses recycled and bio-based materials like rice husk ash silica, recycled carbon black, terpene resin, and bio-based antidegradants to further reduce environmental impact.

Source

Environmentally friendly rubber composition reinforced with biomass filler like lignosulfonate for tire applications. The composition contains diene elastomer, carbon black, biomass filler, antioxidant, zinc oxide, stearic acid, phenolic resin, accelerator, and sulfur. The biomass filler improves tensile properties and reduces hysteresis heat generation compared to traditional carbon black-reinforced rubber. The composition has good balance of properties like elongation, tensile strength, and aging resistance.

Source

Rubber composition that can be used for different applications in conjunction with tires components, preferably tires treads or tire tread components components, and which has a majority weight percent of renewable content. The composition includes a blend of at least two rubber elastomers comprising or consisting of: greater than 50 phr of at least one mass balanced polymer; at least one bio-derived plasticizer; and a bio-derived filler system comprising silica and carbon black.

Source

Tire tread rubber composition with lower rolling resistance using biomass derived reinforcing filler from sugarcane bagasse ash. The composition contains natural rubber, neodymium catalyst polymerized butadiene rubber, carbon black, silane coupling agent, and biomass filler. The biomass filler replaces some of the carbon black. The composition has better processability, lower rolling resistance, and lower payne effect compared to conventional carbon black filled tires. The biomass filler provides lower rolling resistance and better processing while maintaining tire performance.

Source

Rubber composite material with improved properties and reduced environmental impact compared to conventional rubber compounds. The composite is made by modifying natural rubber with cuttlefish juice, a biodegradable filler extracted from squid ink. The cuttlefish juice spherical nanoparticles contain melanin and protein/polysaccharide. The composite also uses zinc oxide and stearic acid as activator instead of conventional carbon black. This provides similar property enhancements but with reduced environmental pollution concerns from filler emissions and waste disposal.

Source

Composition for tire rubber with reduced carbon footprint by using renewable carbon black feedstocks. The composition comprises elastomeric polymer material and a carbon black with at least 10% of the carbon black feedstock being from renewable sources like plant oils. The renewable carbon black improves tire performance while lowering overall CO2 emissions compared to fossil-based carbon black. The composition can be used in tires, belts, hoses, and other rubber products.

Source

Rubber compounds with improved properties for tire treads by combining functionalized diene polymers and silica fillers. The diene polymers have functional groups containing polar groups like -OX, -OR, -COOX, -COOR, -N(R'1)(R'2)X or -N(R'1)(R'2)Xn (X represents H or a cation, n is either 1 or 0, R'1 and R'2 represent independently from each other H, a C1-C6 alkyl group, a -Si(R'4)(R's) group where R' and R's represent independently from each other a C1-C6 alkyl group). The silica filler is obtained from biomass ash like rice husk ash. This specific combination of functionalized diene polymers and sil

Source

Environmentally friendly material for improving fatigue resistance and flexibility of rubber products made from recycled tire carbon black (rCB), vegetable oil soapstock, emulsifier, binder, and modifier. The rCB has specific particle size, surface area, and transmittance. The method involves mixing these components to prepare the material, which can be used as a replacement for traditional carbon black in rubber compounds to enhance fatigue and flexural properties while reducing cost and environmental impact compared to virgin carbon black.

Source

Vulcanizable rubber mixture with high filler content, vulcanizate, and rubber product that have improved rolling resistance while still having good processability. The mixture contains diene rubbers, fillers, and specific rubber regenerates made by devulcanizing recycled tire treads in an extruder. The regenerates are produced from shredded treads of truck and bus radial tires. This allows using more regenerates to reduce virgin rubber, improve sustainability, and reduce viscosity. It resolves the conflict of objectives between processability and rolling resistance for filled rubber compounds.

Source

A tire rubber composition containing modified liquid reclaimed rubber derived from waste tires that improves physical properties, reduces heat generation, and enables recycling of waste tires. The composition contains 100 parts of raw rubber, 30-60 parts of filler, 2-10 parts of bio-based modified liquid reclaimed rubber, vulcanization activator, antioxidant, and vulcanizing agent. The modified liquid reclaimed rubber is made by reacting waste tire rubber and/or powder with lignin and/or lignin derivatives and a peptizer.

Source

Bio-based compound modified liquid reclaimed rubber for tire applications that replaces traditional plasticizers, tackifying resins, and softeners. The modified rubber is prepared by high-temperature reaction of reclaimed rubber, lignin derivatives, and a peptizing agent. This bio-based rubber can be used to partially or fully replace conventional additives in tire rubber compositions to improve sustainability and reduce environmental impact compared to petroleum-based additives.

Source

Tire tread rubber composition with high biobased content and reduced carbon footprint. The tread rubber is made by mixing specific amounts of raw rubber, reinforcing filler, activator, plasticizer, anti-aging agent, accelerator, and vulcanizing agent. The composition aims to replace fossil-based rubber with biobased rubber, like itaconate rubber, to reduce dependence on petroleum. The low-temperature vulcanization process and omitting silane coupling agent further reduce carbon emissions. The composition provides tires with high biobased content, good wet grip, and lower rolling resistance.

Source

Preparing a high performance motorcycle tyre tread rubber composition that provides better wet and dry grip. The composition includes polymer matrix, coconut shell powder as a reinforcing green filler (Natural filler), carbon black and silica; coupling agent; activators; anti-degradants; vulcanization agent; primary accelerator.

Source

Rubber composition for an off highway tyre treads using naturally occurring pineapple leaf fibre. The composition includes natural rubber, polybutadiene rubber, and an anhydrous maleic acid-grafted polypropylene -based compatibilizer.

Source

Using biochar as a renewable filler in elastomeric compositions like tires instead of carbon black. The biochar is made from biomass like wood or crop residue that is dried, pulverized, and pyrolyzed at 700°C. The resulting biochar filler has less than 15% ash and less than 5% nitrogen content. This biochar filler improves sustainability by using a renewable source instead of carbon black from fossil fuels.

Source

Rubber composition for tires that improves dispersion of microfibrillated plant fibers like cellulose, enhancing rubber properties and fuel efficiency. The composition contains microfibrillated plant fibers and a covalent bonding modifier that attaches to the fibers. The modifier is a liquid polymer modified with unsaturated carboxylic acids. The fibers are first treated with an anionic surfactant to improve dispersion, then mixed with the rubber and modifier. The surfactant helps disperse the fibers before adding them to the rubber.

Source

Rubber composition for tire treads with a majority of renewable components for improved sustainability. The composition contains blends of natural rubber, polybutadiene, and styrene-butadiene copolymer elastomers. It replaces conventional petroleum-derived elastomers with renewable alternatives. The composition also uses biobased resins, processing aids, and silica fillers. The goal is to create tire treads with high renewable content without sacrificing performance.

Source

Rubber composition for tire components with majority renewable content. The composition contains blends of natural rubber, styrene-butadiene copolymer, and polybutadiene, along with bio-derived resin, vegetable oil, and fillers like silica and bio-based carbon black. The bio-derived components replace fossil-based materials to make the tire rubber more sustainable.

Source