Insect-Repellent Surface Coating Formulation
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Solution Overview
Problem
Insect-transmitted diseases pose a significant threat to human health and economies, particularly in developing countries, due to the inability of existing technologies to effectively repel insects from surfaces, which can harbor and transmit diseases.
Innovation Solution
A surface coating formulation combining synthetic and natural active ingredients, additives, solvents, and surfactants is developed for water-based and solvent-based coatings, wood laminate products, and wallpapers, providing repellent action against flying and crawling insects without harming humans or the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing insect repellent technologies are used, then insects may be repelled to some extent, but they cannot effectively prevent insects from harboring and transmitting diseases on surfaces
Solution Approach 1:
The patent applies composite materials by combining multiple active ingredients (permethrin, cypermethrin, and natural extracts) with specific additives, solvents, and surfactants to create a formulation that provides superior insect repellent properties compared to single-ingredient solutions. This composite approach enables the coating to effectively repel disease-transmitting insects while maintaining stability and compatibility with various surface materials.
Solution Approach 2:
The patent utilizes parameter changes by optimizing the concentration ranges of active ingredients (permethrin 1-10%, cypermethrin 1-10%, natural extracts 5-20%) and formulation parameters (pH 6-9, specific gravity 0.9-1.1) to achieve maximum repellent efficacy. These parameter optimizations ensure the coating provides reliable protection against insect-borne diseases while maintaining safety for humans and the environment.
2Reliability
If synthetic active ingredients are used for insect repellent coating, then repellent efficacy is improved, but compatibility and stability in various coating compositions may be compromised
Solution Approach 1:
The patent employs intermediaries by incorporating specific additives (surfactants, stabilizers, and compatibility agents) that mediate between the synthetic active ingredients and the coating composition matrix. These intermediaries ensure uniform distribution of the repellent agents, prevent phase separation, and maintain chemical stability across different coating types (water-based and solvent-based), thereby resolving compatibility issues while preserving high repellent efficacy.
Solution Approach 2:
The patent applies parameter changes by carefully controlling pH (6-9), solvent composition, and concentration levels of active ingredients to optimize both repellent efficacy and compatibility with various coating compositions. This parameter optimization ensures the formulation remains stable and effective across different application scenarios without compromising performance.
3Reliability
If strong insecticidal agents are used to repel disease-transmitting insects, then protection against insect-borne diseases is enhanced, but harm to humans and the environment may increase
Solution Approach 1:
The patent applies composite materials by formulating a combination of synthetic pyrethroids (permethrin, cypermethrin) with natural insect-repellent extracts and biodegradable additives. This composite formulation achieves high repellent efficacy against disease-transmitting insects while the natural components and biodegradable additives reduce environmental persistence and toxicity, thereby protecting human health and ecosystems.
Solution Approach 2:
The patent utilizes parameter changes by optimizing the concentration of active ingredients within safe ranges (permethrin 1-10%, cypermethrin 1-10%) and controlling formulation parameters (pH 6-9, specific gravity 0.9-1.1) to ensure the coating provides effective protection while maintaining safety for humans and the environment. These parameter controls prevent excessive toxicity while preserving repellent effectiveness.
Data Source
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AI summary
The patent describes the composition of a set of formulations based on synthetic active ingredients and natural boosting additives, which provide repellent action against flying insects such as mosquitoes, flies and black-winged stilts, as well as crawling insects such as cockroaches and ants. Test results that prove the effectiveness of the products for the applications intended are included herein.