Modified Vegetable Oil Rubber Composition for Tire Grip and Processing

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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, particularly in traction, handling, dry grip, and wet grip, which existing oils fail to adequately address.

Innovation Solution

A rubber composition incorporating a vegetable oil derivative with a specific structure, produced by modifying epoxidized vegetable oils, is used in conjunction with rubbers and fillers like silica and carbon black, to improve processing and tire performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional oils are used as processing aids in rubber compositions, then processing is facilitated, but tire performance in traction, handling, and grip is insufficient

Engineering Contradiction:
ImproveprocessingVSAvoidtire performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent modifies the chemical structure of vegetable oils by introducing fatty acid ester groups at specific positions (alpha, beta, or gamma) to create derivatives with enhanced performance characteristics. This structural parameter change allows the oil derivative to provide both good processing aid properties and improved tire performance, resolving the contradiction between ease of processing and tire performance reliability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite chemical structure by combining epoxidized vegetable oil with fatty acid esters to form a novel oil derivative. This composite material integrates the processing benefits of traditional oils with the performance enhancements of modified molecular structures, achieving both good processability and superior tire performance simultaneously

Inventive Principle:
Principle #40Composite materials

2Reliability

If high filler contents and high molecular weight elastomers are used in rubber compositions, then tire performance is improved, but processing becomes more difficult

Engineering Contradiction:
Improvetire performanceVSAvoidprocessing
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The modified vegetable oil derivative acts as an intermediary substance that facilitates processing of high filler content and high molecular weight elastomers. The unique molecular structure with fatty acid ester groups provides optimal interaction with both the elastomer and filler particles, enabling smooth processing while maintaining the high performance benefits of sophisticated rubber compositions

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11987690B2Fatty acid-modified vegetable oils in rubber compositions and tires
Publication Date: 2024.05.21 G-3 CHICKADEE PURCHASER LLC
  • US11987690B2 patent drawing
  • US11987690B2 patent drawing
  • US11987690B2 patent drawing

AI summary

The present invention is directed to the use of modified vegetable oils in rubber compositions and in tires.