Tyre Mix Wax Composition for Ozone Protection and Appearance
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Solution Overview
Problem
Existing outer tyre portion mixes provide adequate ozone protection but impair the appearance of tyres, requiring significant time and expense for cleaning, as they typically contain standard paraffin wax with at least 60% normal paraffin, which does not meet market demands for appearance.
Innovation Solution
A tyre mix comprising a cross-linkable, unsaturated-chain polymer base, curing agents, and a wax blend with a maximum of 45% normal paraffin, including a combination of paraffin wax with 40-60% C15-C40 chains and 40-60% C41-C70 chains, and natural wax, to enhance appearance without compromising ozone protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard paraffin wax with at least 60% normal paraffin is used, then ozone protection is satisfactory, but appearance is impaired
Solution Approach 1:
The patent changes the compositional parameters of the paraffin wax by limiting normal paraffin content to maximum 45% by weight and increasing non-normal paraffin content to minimum 55% by weight. This parameter modification resolves the contradiction by maintaining ozone protection functionality while eliminating the appearance impairment caused by excessive normal paraffin.
Solution Approach 2:
The patent creates a composite wax formulation combining paraffin wax (with modified composition) and natural wax in specific proportions (1-10 phr paraffin wax, 1-6 phr natural wax). This composite approach allows the mixture to provide both ozone protection and acceptable appearance, resolving the contradiction between protective function and aesthetic quality.
2Reliability
If standard paraffin wax is used for ozone protection, then protection effectiveness is maintained, but cleaning time and expense increase
Solution Approach 1:
By modifying the wax composition parameters (reducing normal paraffin to max 45%, increasing non-normal paraffin to min 55%), the patent eliminates the need for extensive cleaning while maintaining ozone protection, thus resolving the contradiction between protection effectiveness and cleaning time requirements.
3Reliability
If standard paraffin wax with at least 60% normal paraffin is used, then ozone protection is achieved, but market demand for appearance is not met
Solution Approach 1:
The patent adjusts the compositional parameters of the wax to meet market demands for appearance while preserving ozone protection functionality, thereby improving market adaptability without sacrificing reliability.
Solution Approach 2:
By formulating a composite wax system combining modified paraffin wax and natural wax, the patent achieves a balance between protective performance and aesthetic quality that meets contemporary market expectations, resolving the contradiction between reliability and market adaptability.
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 tyre mix achieves improved appearance with maintained ozone resistance, reducing the need for costly cleaning processes while ensuring effective protection against ozone-induced ageing.
Implementation Method 1
wax, which protect the rubber from ozone attack by migrating to the surface and forming a protective film about the tyre
Implementation Method 2
cross-linking of the polymer base, such as sulphur and possibly curing accelerants and aids
Data Source
AI summary
A tire mix containing a cross-linkable, unsaturated-chain polymer base, curing agents, a reinforcing filler, and wax; the wax containing a paraffin wax containing a maximum of 45% by weight of normal paraffin.