Modified Vegetable Oil Rubber Composition for Tire Mixing
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Solution Overview
Problem
Sophisticated rubber compositions with high filler contents and high molecular weight elastomers require improved processing aids to enhance tire performance and processing efficiency.
Innovation Solution
Incorporation of a vegetable oil derivative, derived from epoxidized vegetable oil modified with carboxylic acids, into the rubber composition to improve processing and tire performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high filler contents and high molecular weight elastomers are used in rubber compositions, then tire performance is improved, but processing efficiency deteriorates
Solution Approach 1:
The patent introduces resins as intermediary substances that mediate between the high filler/high molecular weight elastomer system and the processing requirements. These resins act as processing aids that enable efficient mixing and processing while maintaining the high-performance formulation, thus resolving the contradiction between improved tire performance and deteriorated processing efficiency
Solution Approach 2:
The patent modifies the chemical and physical parameters of the rubber composition by incorporating specific resins that change the rheological properties, mixing characteristics, and processing behavior of the compound. This allows the high filler and high molecular weight elastomer system to be processed efficiently despite their inherently difficult processing characteristics
2Ease of manufacture
If resins are added to rubber compounds, then processing during mixing is improved, but tire performance may be compromised
Solution Approach 1:
The patent carefully selects and formulates resins with specific molecular weight distributions, chemical compositions, and functional groups to achieve optimal balance. By controlling these parameters, the resins provide processing benefits during mixing while maintaining or enhancing tire performance characteristics such as traction, handling, and grip
Solution Approach 2:
The patent creates a composite system combining rubber compounds, high filler contents, high molecular weight elastomers, and specifically selected resins. This multi-component composite formulation achieves synergistic effects where the resin enhances both processing characteristics and final tire performance, rather than compromising one for the other
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 vegetable oil derivative enhances processing efficiency and improves tire performance indicators such as tensile strength, elongation at break, handling, and wet grip, while maintaining or slightly improving modulus and reducing rolling resistance.
Implementation Method 1
a vegetable oil derivative, derived from epoxidized vegetable oil modified with carboxylic acids
Data Source
AI summary
The present invention is directed to the use of modified vegetable oils in rubber compositions and in tires or other manufactured items. In one aspect of the invention, a vulcanizable rubber composition is disclosed comprising the reaction product of an epoxidized vegetable oil and a carboxylic acid selected from the group consisting of terpenoid carboxylic acids and aromatic carboxylic acids.