Zinc Oxide UV Protection Composition
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Solution Overview
Problem
Current materials for UVA and UVB protection, such as carbon black, pose health risks and environmental concerns due to toxicity and limited applicability, while existing zinc oxide dispersions often require synthetic additives for stability, which are not environmentally friendly.
Innovation Solution
A zinc oxide-based composition utilizing micronized zinc oxide particles dispersed in distilled water adjusted to a pH of 10 or greater with a natural buffering agent, ensuring stability and high SPF values without synthetic additives, providing unparalleled UVA and UVB spectral absorption stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carbon black is used for UVA/UVB protection and heat absorption, then protection effectiveness is improved, but health risks and environmental toxicity worsen
Solution Approach 1:
The patent substitutes carbon black with zinc oxide particles, changing the material parameter from carbon-based to metal oxide-based. This parameter change maintains UV absorption capability while eliminating the toxicity and carcinogenicity associated with carbon black, thereby resolving the contradiction between protection effectiveness and health safety.
Solution Approach 2:
The patent creates a composite dispersion system combining zinc oxide particles with natural-derived surfactants and stabilizers. This composite approach enhances the safety profile by using non-toxic, biodegradable components while maintaining the UV protection functionality, thus resolving the contradiction between effectiveness and environmental harm.
2Stability of the object's composition
If synthetic additives are used to stabilize zinc oxide dispersions, then dispersion stability is improved, but environmental friendliness and non-toxicity worsen
Solution Approach 1:
The patent employs natural-derived surfactants and stabilizers that are biodegradable and environmentally benign, replacing persistent synthetic additives. These natural compounds provide sufficient dispersion stability for the application lifecycle while degrading harmlessly afterward, resolving the contradiction between stability and environmental safety.
Solution Approach 2:
The patent changes the chemical composition parameters of the stabilizing agents from synthetic polymers and surfactants to natural derivatives. This parameter change maintains the necessary dispersion stability through natural molecular interactions while eliminating the toxicological concerns associated with synthetic additives.
3Ease of manufacture
If conventional insulation materials are used for wire and cable, then ease of manufacture is improved, but UVA/UVB protection and heat resistance worsen
Solution Approach 1:
The patent merges the insulation function with the UV protection function by incorporating zinc oxide dispersion into the insulation material matrix. This combination allows a single material to provide both electrical insulation and UV/heat protection, resolving the contradiction between manufacturing simplicity and protection capability.
Solution Approach 2:
The zinc oxide-based composition serves multiple functions simultaneously: electrical insulation, UV radiation protection, and heat resistance. This multi-functionality eliminates the need for separate protective layers, maintaining ease of manufacture while significantly improving protection capabilities.
4Reliability
If current sunscreen formulations are used, then SPF protection is provided, but UVA stability and spectral absorption consistency worsen
Solution Approach 1:
The patent formulates a composite sunscreen system where zinc oxide particles are dispersed in a stabilized matrix with natural surfactants. This composite structure ensures consistent UV absorption across the spectrum, particularly improving UVA stability while maintaining high SPF protection, thereby resolving the contradiction between SPF level and spectral stability.
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 offers enhanced protection across the UV spectrum with high SPF values, improved heat absorption, and anti-microbial properties, making it suitable for various applications without the toxicity concerns of traditional materials.
Implementation Method 1
A substance with high UVA and UVB spectral absorption stability, high heat absorption, and insulation capabilities
Implementation Method 2
high heat absorption, and insulation capabilities
Implementation Method 3
distilled water adjusted to a pH of 10 or greater with a natural buffering agent, ensuring stability
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
Disclosed is a new composition of matter that is a compound which also is presented as a dispersion with broad UVA and UVB spectral absorption stability, heat absorption, and insulation properties, anti-microbial water resistance, and high SPF properties. The composition of matter is a zinc oxide complex that is provided with distilled water buffered to a pH of greater than 10 using ammonium hydroxide, L-arginine, or other buffering agents, and zinc oxide particles. The zinc oxide complex may be dried and rinsed to increase stability. An emollient, such as glycerine, and/or an emulsifier such as a combination of cetearyl alcohol and cetearyl glucoside and/or sodium stearoyl glutamate and/or cetearyl glucoside may also be added to the zinc oxide complex. The zinc oxide complex is made from natural-based, earth-derived, Ecocert® certified ingredients is non-toxic, and may be used or combined with any compound in which UVA/UVB stability is desired. The applications for the zinc oxide complex are numerous and include; roofing materials, composite building materials, automobile and aircraft parts, textiles, wire and cable insulation, use in conductor and semi-conductor technologies, as well as for sunscreens and cosmetics.