Decontamination Composition for PAHs and Soot Removal
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Solution Overview
Problem
Current cleansing compositions that remove polycyclic aromatic hydrocarbons (PAHs), isocyanates, and soot from human skin often contain penetration enhancers, which allow hazardous substances to penetrate the skin, and are not very effective in removing these contaminants.
Innovation Solution
A composition comprising water, at least one phyllosilicate, and at least one water-soluble or water-dispersible polymer, optionally with a thickening agent, that does not contain charcoal or carbon-based powders and lacks penetration enhancers, effectively removing PAHs, soot, and isocyanates from human skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If penetration enhancers are included in cleansing compositions to improve cleaning effectiveness, then the cleaning ability is enhanced, but hazardous substances can penetrate the skin causing health risks
Solution Approach 1:
The invention removes penetration enhancers from the cleansing composition formulation, extracting the harmful element that causes hazardous substances to penetrate skin while maintaining cleaning effectiveness through alternative mechanisms using phyllosilicates and water-soluble polymers
Solution Approach 2:
The invention introduces phyllosilicates and water-soluble polymers as intermediary substances that enable effective removal of PAHs and soot without requiring penetration enhancers, thereby mediating between cleaning effectiveness and skin safety
2Ease of operation
If conventional washing pastes are used to remove hazardous substances from skin, then superficial cleaning is achieved, but the cleaning effectiveness is low and hazardous substances remain
Solution Approach 1:
The invention uses composite formulations combining phyllosilicates with water-soluble or water-dispersible polymers to create a cleansing composition that achieves both easy application and high cleaning effectiveness, overcoming the limitations of conventional washing pastes
3Quantity of substance
If charcoal or carbon-based powders are used in decontamination compositions, then adsorption capacity is improved, but the composition becomes less effective for certain hazardous substances
Solution Approach 1:
The invention changes the chemical and physical parameters of the adsorbent materials by using phyllosilicates with specific layer structures and water-soluble polymers with particular molecular weights and functional groups, optimizing the composition for effective removal of PAHs and soot without relying on charcoal or carbon-based powders
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 composition achieves high efficiency in removing PAHs and soot from contaminated skin, with decontamination rates of up to 97.2%, and does not compromise the skin's barrier function by avoiding penetration enhancers.
Implementation Method 1
The composition comprises from 1 to 40% by weight of at least one phyllosilicate
Implementation Method 2
The composition comprises from 1 to 40% by weight of at least one water-soluble polymer
Implementation Method 3
at least one water-soluble or water-dispersible polymer
Data Source
AI summary
Composition for decontaminating polycyclic aromatic hydrocarbons and soot or isocyanates from human skin, comprising(A) water;(B) at least one phyllosilicate;(C) at least one water-soluble or water-dispersible polymer; and(D) optionally at least one thickening agent;wherein the composition does not contain charcoal and/or graphite and/or another carbon-based powder.