Thymol Cembratriene-ol Repellent Composition for Sensitive Skin
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Solution Overview
Problem
Current pest repellents, such as DEET and natural essential oils, pose health risks to sensitive groups like infants, pregnant women, and lactating women, and lack long-lasting efficacy, while synthetic compounds like DEET cause skin irritation and toxicity concerns.
Innovation Solution
A composition comprising thymol and cembratriene-ol (CBT-ol) with a stabilizer and solvent, which is safe for topical application on sensitive groups and provides extended pest repellency without the toxicity issues of DEET, using a method that involves mixing and dissolving these components to create a homogeneous solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If DEET is used as an insect repellent, then long-lasting protection is achieved, but skin irritation and toxicity occur
Solution Approach 1:
The patent changes the chemical parameters by using thymol (a phenolic compound) and CBT-ol (a terpenoid alcohol) instead of DEET. These natural compounds have different chemical properties that provide comparable or superior protection duration while eliminating the skin irritation and toxicity associated with synthetic DEET, thus resolving the contradiction between duration and safety
Solution Approach 2:
The patent employs a composite formulation combining thymol and CBT-ol together with stabilizers and solvents. This composite approach leverages the synergistic effects of multiple natural compounds to achieve long-lasting protection without the harmful side effects of single-component synthetic repellents like DEET
2Object-affected harmful factors
If natural essential oils are used as insect repellents, then initial repellency is strong, but protection duration is short due to high volatility
Solution Approach 1:
The patent modifies the volatility parameter by selecting thymol and CBT-ol, which have lower volatility compared to typical essential oils. This chemical parameter change allows the repellent to maintain its protective effect for extended periods (6-8 hours or longer) while preserving the strong initial repellency characteristic of natural compounds
Solution Approach 2:
The patent introduces stabilizers and solvents as intermediary substances that work together with thymol and CBT-ol. These intermediaries help control the release rate and volatility of the active repellent compounds, extending protection duration while maintaining effective repellency levels
3Object-affected harmful factors
If unrefined essential oils are used, then natural repellency is achieved, but health risks exist for sensitive groups due to allergens
Solution Approach 1:
The patent extracts and isolates specific beneficial compounds (thymol and CBT-ol) from natural sources, separating them from the complex mixture of allergens and other compounds found in unrefined essential oils. This extraction process retains the natural repellency while removing harmful allergens, making the product safe for sensitive groups including infants and pregnant women
Solution Approach 2:
The patent applies local quality by using highly purified, specific compounds (thymol and CBT-ol) rather than broad-spectrum essential oil mixtures. This targeted approach ensures that only the beneficial repellent properties are retained while eliminating variable allergenic components, providing consistent safety and efficacy
Data Source
AI summary
The invention relates to a composition, preferably a pest repellent composition, comprising thymol and/or cembratriene-ol (CBT-ol), a stabilizer and a solvent.