Tire Rubber Composition Using Bio-Based and Recycled Materials
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Solution Overview
Problem
Existing tires, despite improvements in performance, lack sustainability due to reliance on non-renewable materials and potential material shortages, necessitating a shift towards more environmentally friendly and resource-efficient alternatives.
Innovation Solution
A tire composition utilizing recycled and bio-based materials such as rubber, silica, carbon black, and hydrocarbon resin, combined with rubber coating compositions, to enhance sustainability without compromising performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fossil-based materials are used in tire production, then performance and durability are maintained, but sustainability and environmental friendliness deteriorate
Solution Approach 1:
The patent changes the chemical composition parameters of rubber materials by incorporating bio-based monomers (isoprene, butadiene, styrene) derived from renewable resources like plant sugars and biomass, replacing traditional fossil-based feedstocks while maintaining the required performance characteristics through controlled polymerization processes
Solution Approach 2:
The patent creates composite rubber compositions by combining multiple elastomers (polyisoprene, polybutadiene, styrene butadiene rubber) with recycled and bio-based fillers (silica, carbon black) and plasticizers (vegetable oils), forming a multi-component material system that achieves both sustainability goals and performance requirements
2Object-affected harmful factors
If recycled and bio-based materials are used in tire components, then sustainability is improved, but material availability and consistency may deteriorate
Solution Approach 1:
The patent employs multiple sources for each material component - bio-based monomers can be produced from various feedstocks (plant sugars, starches, oils), and recycled materials can come from different waste streams (end-of-life tires, plastic waste), creating a universal material system that can adapt to different resource availability while maintaining consistent performance
Solution Approach 2:
The patent allows different regions or production facilities to use locally available bio-based feedstocks and recycled materials, with the polymerization and compounding processes standardized to ensure consistent material properties regardless of the specific local source, thus maintaining material consistency while improving sustainability
3Object-affected harmful factors
If complex rubber compositions with multiple recycled and bio-based components are used, then sustainability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent performs preliminary polymerization of bio-based monomers into elastomers and preliminary compounding of fillers and plasticizers into master batches before final tire manufacturing, reducing the complexity of the main production process by pre-processing materials into ready-to-use components with controlled properties
Solution Approach 2:
The patent divides the complex rubber composition into separate functional components (elastomers, fillers, plasticizers, resins) that can be manufactured, processed, and quality-tested independently before being combined in the final compounding stage, simplifying the overall manufacturing system through modular processing
Data Source
AI summary
A tire having a tread comprising a tread rubber composition comprising from 10 phr to 100 phr of styrene butadiene rubber comprising monomers selected from one or more of recycled and bio-based monomers, from 0 phr to 90 phr of elastomers selected from one or more of natural rubber, polybutadiene rubber comprising monomers selected from one or more of recycled and bio-based monomers, and synthetic polyisoprene comprising monomers selected from one or more of recycled and bio-based monomers, and from 40 phr to 250 phr of a filler comprising one or more of recycled or bio-based silica, and recycled or bio-based carbon black, from 1 phr to 90 phr of hydrocarbon resin which is one or more of i) based on recycled monomers, bio-based monomers or a combination thereof, and ii) a plant resin. Furthermore, the tire comprises reinforced rubber plies, comprising cords, optionally made of a bio-based or recycled material, coated with a rubber coating composition comprising from 80 phr to 100 phr of elastomers selected from one or more of natural rubber and synthetic polyisoprene comprising monomers selected from one or more of recycled and bio-based monomers, and from 30 phr to 90 phr of a filler comprising one or more of recycled or bio-based silica and recycled or bio-based carbon black.