Silane-Functionalized Resin Grafting for Tire Tread Performance
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Solution Overview
Problem
High performance passenger tires require traction and handling improvements at high speeds and temperatures, but existing resin solutions, such as immiscible resins, reduce tire life and are costly to produce, posing a challenge for cost-effective high performance tire tread compositions.
Innovation Solution
Silane-functionalized polymer backbones are prepared using free radical chemistry, blended with diene elastomers and inorganic fillers, to create a high performance tire tread composition that balances performance and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If immiscible resins with high softening point are added to improve high-speed and high-temperature performance, then traction and handling at high speeds are improved, but tire tread life is reduced
Solution Approach 1:
The patent changes the chemical and physical parameters of the resin by introducing silane functional groups through free radical grafting. This modifies the resin's interaction with rubber and fillers, achieving high-temperature stability and traction performance while maintaining tire life, thus resolving the contradiction between high-speed performance and durability
Solution Approach 2:
The patent creates a composite system by grafting silane functional groups onto the polymer backbone, forming a composite material that combines the benefits of immiscible resin (high-temperature performance) with improved compatibility and bonding (extended tire life), thereby resolving the performance-lifetime trade-off
2Speed
If immiscible resins are used to achieve high performance at high temperatures, then traction and handling are improved, but production cost increases
Solution Approach 1:
The patent replaces expensive immiscible resins with a cost-effective alternative: silane-functionalized resins prepared through free radical chemistry using readily available materials and processes, achieving similar high-temperature performance at lower production cost
Solution Approach 2:
The patent modifies resin parameters through silane functionalization to achieve high-temperature performance characteristics previously only available from expensive immiscible resins, thereby obtaining high-performance properties at lower cost
3Force
If miscible resins are used to increase overall traction, then traction characteristics are improved, but traction and handling deteriorate at high speeds and high temperatures
Solution Approach 1:
The patent changes the thermal and rheological parameters of the resin through silane functionalization, creating a material that maintains good adhesion (like miscible resins) while providing high-temperature stability (like immiscible resins), thus resolving the contradiction between overall traction and high-speed traction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides enhanced traction and handling at high speeds and temperatures while maintaining tire life and reducing production costs, making it suitable for high performance passenger tires.
Implementation Method 1
preparing a silane-functionalized polymer backbone using free radical chemistry
Data Source
Figure 1
AI summary
This invention relates to a process for the preparation of a silane-functionalized resin composition comprising the steps of mixing a polymer backbone, a silane, and a free radical initiator; and producing a silane-functionalized resin composition. The polymer backbone is selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C5 homopolymers and copolymer resins, C5-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof.