TH9933C3 - Composition of nano-emulsion for mosquito repellents Contains essential oils of eucalyptus oil, basil oil and vetiver oil. - Google Patents

Abstract

DC60 (October 22, 2014) This invention relates to the development of a mosquito repellent formulation in the form of a nanoemulsion containing a mixture of eucalyptus oil, basil oil, and vetiver oil in total amounts of 10-40 percent by weight of the total nanoemulsion mixture; a surfactant in the amount of 2-20 percent by weight of the total nanoemulsion mixture; a moisturizing agent in the amount of 2-10 percent by weight of the total nanoemulsion mixture; and water in the amount of 50-80 percent by weight of the total nanoemulsion mixture. The mosquito-repellent nanoemulsion according to this invention does not cause skin irritation to users and also has good stability, which enhances the ability to retain the oils and fragrance of the essential oils, thus making the nanoemulsion effective in repelling mosquitoes for a longer period. This invention relates to the development of a mosquito repellent formulation in the form of a nanoemulsion containing a mixture of essential oils. The nanoemulsion contains a mixture of eucalyptus oil, basil oil, and vetiver oil in total amounts of 10-40 percent by weight of the total nanoemulsion mixture; a surfactant in the amount of 2-20 percent by weight of the total nanoemulsion mixture; a moisturizer in the amount of 2-10 percent by weight of the total nanoemulsion mixture; and water in the amount of 50-80 percent by weight of the total nanoemulsion mixture. The mosquito-repellent nanoemulsion formulated in this invention does not cause skin irritation to users and also has good stability, which enhances the ability to retain the oil and fragrance of the essential oils, thus making the nanoemulsion effective in repelling mosquitoes for a longer period. (Revised 22/10/2014) This invention concerns the development of a mosquito-repellent product formulation in the form of a nanoemulsion containing a mixture of essential oils: eucalyptus oil, basil oil, and vetiver oil in total amounts of 10-40 percent by weight of the total nanoemulsion mixture; a surfactant in the amount of 2-20 percent by weight of the total nanoemulsion mixture; a moisturizer in the amount of 2-10 percent by weight of the total nanoemulsion mixture; and water in the amount of 50-80 percent by weight of the total nanoemulsion mixture. A moisturizing agent of 2-10 percent by weight of the total nanoemulsion mixture and water of 50-80 percent by weight of the total nanoemulsion mixture should be added. The mosquito-repellent nanoemulsion described in this invention does not cause skin irritation to users and also exhibits good stability, enhancing the ability to retain the oil and fragrance of essential oils, thus ensuring the nanoemulsion's long-lasting mosquito repellent effectiveness.

Claims (1)

The composition of the nanoemulsion for mosquito repellent consists of: - Essential oils, including eucalyptus oil, hairy basil oil, and vetiver grass oil, in a quantity of 10-40 percent by weight of the total nanoemulsion mixture. - Surfactants in a quantity of 2-20 percent by weight of the total nanoemulsion mixture. - Humectants in a quantity of 2-10 percent by weight of the total nanoemulsion mixture. - Water in a quantity of 50-80 percent by weight of the total nanoemulsion mixture. 2. Composition of the nanoemulsion for mosquito repellent. According to claim 1, the essential oil consists of: - Eucalyptus oil 5-20 percent by weight of the total nanoemulsion mixture; - Hairy basil oil 1-10 percent by weight of the total nanoemulsion mixture; - Vetiver grass oil 1-10 percent by weight of the total nanoemulsion mixture. 3. The composition of the nanoemulsion for mosquito repellent according to claim 1 or 2 also includes vanillin. 4. The composition of the nanoemulsion for mosquito repellent according to any one of claims 1 to 3 also includes a fragrance selected from the group containing methyl salicylate, menthol, or a mixture of these substances. 5. The composition of the nanoemulsion for mosquito repellent according to any one of claims 1 to 4, where the surfactant is selected from the group containing... A mixture of cetearty alcohol and cocoglucoside (Cetearty Alcohol/Cocoglucoside), poloxamer188 (poloxamer188), polyoxyethylene (20) sorbitan monolaurate (Polyoxyethylene (20) sorbitan monolaurate) or a mixture of the above substances. 6. A composition of the nanoemulsion for mosquito repellents according to any one of the claims 1 to 4, in which the above moisturizing agents are present. Select from the group of Glycerin, Propylene glycol, or a mixture of the above. 7. The process for preparing the nanoemulsion for mosquito repellent from any of the components according to claims 1 to 6, which consists of the following steps: - Preparation of the oil phase by mixing eucalyptus oil, basil oil, and vetiver oil and the oil-based surfactant, Cetearyl Alcohol/Cocoglucoside, together and heating to a temperature of 60-65 degrees Celsius. - Preparation of the water phase by mixing the water-based surfactant, poloxamer188 and Polyoxyethylene (20) sorbitan monolaurate, a humectant, and water together and heating to a temperature of 65-70 degrees Celsius. - Mixing the water and oil phases together by pouring the water into the oil and stirring at a speed of 10,000-20,000 rpm will produce a pre-emulsion. To reduce the size of the pre-emulsion, pass it through a high-pressure homogenizer at a pressure of 500-2,000 bar and let it cool to room temperature. (Revised 22/10/2014) 1. The composition of the mosquito repellent nanoemulsion consists of: - Essential oils, including eucalyptus oil, hairy basil oil, and vetiver grass oil, in a quantity of 10-40 percent by weight of the total nanoemulsion mixture. - Surfactants in a quantity of 2-20 percent by weight of the total nanoemulsion mixture. - Moisturizing agents in a quantity of 2-10 percent by weight of the total nanoemulsion mixture. - Water in a quantity of 50-80 percent by weight of the total nanoemulsion mixture.