Bio-Based Materials in Tire Manufacturing Processes

A pneumatic tire containing a majority of sustainable content. The tire has over 85% of its components made from sustainable materials like bio-based carbon black, recycled steel, renewable rubber, and biodegradable additives. This provides a tire with significantly higher renewable content compared to conventional tires. The sustainable tire maintains or exceeds performance of traditional tires. The replacement of non-renewable materials with sustainable ones reduces environmental impact while meeting or improving tire performance.

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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.

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Rubber composition for tires containing an oligomeric product made from pyrolysis oil as a replacement for conventional petroleum-based resins. The oligomeric product is prepared by polymerizing the dienes and olefins in the pyrolysis oil using a Friedel-Crafts catalyst. It has a low molecular weight, low viscosity, and aromatic content. The oligomeric product provides rubber properties like glass transition temperature below -20°C and compatibility with elastomers like natural and synthetic rubbers. The pyrolysis oil-derived resin can replace petroleum resins in rubber compositions to recycle waste plastics and valorize the olefins and dienes in pyrolysis oil.

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Functionalized bio-based elastomer for tires with low rolling resistance made by copolymerizing fumarate and conjugated diene monomers. The functionalization involves adding a third monomer that can react with white carbon black filler. The functionalized copolymer is prepared by emulsion polymerization in a nitrogen atmosphere. The resulting latex is demulsified and dried to obtain the functionalized fumarate/conjugated diene copolymer raw rubber. This bio-based elastomer can be used in tire tread compounds to provide low rolling resistance properties and enable "green tire" treads.

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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.

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Rubber composition that improves on the tread (wet, wear, and rolling resistance) performance of conventional rubber compositions made from petroleum-derived materials. The composition includes two polymers and one or more elastomers in a mixture that has been compounded, or blended, with appropriate rubber compounding ingredients.

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Tire that is composed more sustainably and at the same time has no significant disadvantages in terms of its physical properties. The tire contains a plasticizer made from renewable raw materials, preferably vegetable oil, particularly preferably rapeseed oil, and a filler made from renewable raw materials, preferably silica produced from rice husk ash, and a tree resin, preferably colophony resin.

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Tire tread rubber composition with improved processability and environmental friendliness by replacing some of the silica with a phenolic polymer derived from lignin. The composition contains an additive made of lignin, a fat-soluble phenolic polymer, in the rubber base. This improves the processability of the rubber during manufacturing by reducing viscosity and improving mobility of the polymer chains. It also allows partial replacement of silica for environmental benefits. The lignin additive contains an imine group that undergoes reversible dynamic bond exchange at elevated temperatures, contributing to the processability improvements.

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Rubber composition for passenger car tires that reduces the use of fossil-derived materials and improves environmental sustainability. The composition contains a high percentage (30% or more) of biomass-derived butadiene rubber, low percentage (0-20%) of biomass-derived aromatic vinyl rubber, and high cis-content (5-100%) of butadiene units. The biomass-derived butadiene is produced from sources like sugars, alkyl alcohols, alkenes, aldehydes, and carboxylic acids. The composition also has natural rubber, resins, silica, and optionally ethylene-derived rubber. This composition improves environmental friendliness by using more renewable resources and reducing fossil-derived content compared to conventional tire rubbers.

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Guayule-based natural rubber tire treads with improved wet traction and rolling resistance compared to traditional Hevea rubber treads. The key is using specific hydrocarbon resins that are compatible with guayule rubber at low loadings to raise the tread compound glass transition temperature without negatively impacting properties like rolling resistance. The resins are selected to have softening points between 110-165°C and miscibility with guayule rubber within 6% of the Fox equation prediction.

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Diene-grafted epoxy resin and rubber compositions with improved durability when used with rubber materials like tires. The diene-grafted epoxy resin has a diene polymer grafted onto the epoxy resin main chain. This enhances compatibility and durability with rubber compared to unmodified epoxy resins. The diene grafting improves cut resistance, abrasion resistance, and fatigue resistance. The diene-grafted epoxy resin can contain boron and nitrogen atoms. A method to make the resin involves reacting a nitrogen-containing epoxy resin with a boronic acid-modified diene polymer. The rubber compositions contain the diene-grafted epoxy resin along with a rubber component. The resin content is 1-50 parts by mass per 100 parts rubber.

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A vulcanizable rubber composition for tires with improved processing and tire performance. The composition contains a vegetable oil derivative made by reacting epoxidized vegetable oil with a carboxylic acid like a terpenoid or aromatic acid. The derivative improves processing aids and tire properties compared to using the epoxidized vegetable oil alone. The composition can also contain conventional rubber components like styrene-butadiene rubber, silica, and sulfur. The vegetable oil derivative enhances rubber processing and properties like elongation, handling, and wet traction. It also reduces rolling resistance compared to the epoxidized vegetable oil. The derivative enables tunable properties by adjusting the carboxylic acid type and degree of functionalization.

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A resin composition, reinforced metal composite member, and tire for improved durability and resistance to degradation in high temperature and humidity environments. The composition contains a glyceride compound like epoxy-modified oils and a resin with ester bonds like polyester thermoplastic elastomers. This combination suppresses degradation of the ester bonds in the resin when exposed to moisture and high temperatures. The reinforced metal composite member uses this resin composition around metal components like belts or beads in tires to improve durability. The tire uses this composite member for reinforced components like belts or beads to provide improved resistance to degradation in harsh conditions.

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Rubber composition for a tread capable of providing a pneumatic tire having a vulcanization rate equivalent to or higher than those of pneumatic tires using synthetic isoprene rubber. The composition includes a monomer component containing isoprene derived from biomass, a polymer component containing isoprene derived from biomass, and a fatty acid component.

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Resin-diluted elastomers for improving the processability of rubber compositions, especially for manufacturing tires with reduced rolling resistance. The elastomers have high molar mass (200,000 g/mol or more) synthetic diene elastomers diluted with hydrocarbon-based resins. This reduces stickiness compared to undiluted high molar mass diene elastomers. The resin-diluted elastomers can be made by contacting the diene elastomer solution with the resin. The compositions have good processability even with high resin content and can be used in tire manufacture.

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Tire rubber composition that uses esters derived from renewable sources as an alternative to traditional petroleum-based plasticizers. The composition contains esters made by esterifying acids and alcohols derived from renewable sources. The esters, especially trimer esters, provide effective plasticization in tire rubber compositions. The renewable plasticizers allow tire manufacturers to reduce reliance on fossil fuel-based plasticizers and potentially improve sustainability of tire production.

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Rubber composition for tire components with improved processing and properties by using a specialized soybean oil with high mono-unsaturated oleic acid ester content instead of conventional soybean oil or petroleum oil. The specialized soybean oil is derived from hybrid soybeans and has a significantly reduced unsaturation level compared to regular soybean oil. This specialized soybean oil is combined with diene-based elastomers and fillers like silica in a rubber composition. The specialized soybean oil improves rubber processing compared to regular soybean oil or petroleum oil while also enhancing cured rubber properties. The high mono-unsaturated oleic acid ester content of the specialized soybean oil allows better compatibility with the elastomers and fillers during rubber mixing compared to regular soybean oil or petroleum oil.

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Rubber composition for tire treads with improved fuel efficiency, snow traction, and wear resistance compared to natural rubber. The composition contains biomass-derived rubber made from monomers like butadiene, isoprene, myrcene, ocimene, and cosmetics. The biomass-derived rubber has a glass transition temperature (-120 to -60°C) and low modern carbon content (1% or more). The biomass-derived monomers can be produced from biomass sources like sugars, cellulose, proteins, and lipids. The rubber composition can have enhanced sustainability by using biomass-derived monomers instead of petroleum-based ones.

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Rubber composition for treads of studless tires made from biomass-derived rubber with improved low temperature performance compared to 100% biomass-derived rubber. The composition contains biomass-derived rubber with a pMC (percent Modern Carbon) of 1% or more and a glass transition temperature (Tg) of -120 to -60 °C. This biomass-derived rubber can be obtained by polymerizing a biomass-derived monomer component like butadiene. The composition allows studless tires with better cold weather traction compared to conventional studless tires made with 100% petroleum-derived rubber.

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Using modified tall oil resin as a sustainable and high-performance alternative to fossil-based processing oils in rubber compounds for tires. The modified tall oil resin is obtained by reacting tall oil resin with an alcohol to form rosin esters. This improves the performance of rubber compounds made with tall oil resin compared to unmodified tall oil. The modified tall oil resin provides similar properties to traditional mineral oils but with lower PAH content and better sustainability. Using tall oil resin derived from pine tree byproducts instead of fossil oils reduces environmental impact.

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