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Mosquito-repelling sunscreen gel and preparation method thereof

A technology of sunscreen gel and mosquito repellent, which is applied in the direction of pharmaceutical formulations, cosmetic preparations, dressing preparations, etc. It can solve the problems of greasy feeling and short duration, and achieve low alcohol content, high active ingredient content, and avoid The effect of high mosquito amine content

Active Publication Date: 2014-12-24
江苏功成生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the rapid volatilization of DEET and its easy transdermal absorption by the skin, DEET repellent products in the domestic and foreign markets generally have the disadvantages of short duration and greasy feeling after application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 100g of mosquito repellent sunscreen gel is prepared from the following components: 80g of DEET (based on 80g of active ingredient content, the same below), 5g of octyl methoxycinnamate, 3g of benzophenone-3, 2g of nano-sized titanium dioxide, Vapor-phase method hydrophilic silica 8g, the volume concentration 95% ethanol makes up to total amount 100g.

[0026] Preparation method: (1) heating DEET, octyl methoxycinnamate, and benzophenone-3 to 65-75°C to completely dissolve; (2) cooling to 25°C-35°C, adding nano-sized titanium dioxide, homogenizing 20 to 30 minutes; (3) Add 8 g of gas-phase method hydrophilic silica gradually, and homogenize for 20 to 30 minutes after complete addition; (4) Add the remaining volume concentration of 95% ethanol to adjust the content, stir evenly, let stand, and use a water circulation vacuum pump Pump the vacuum to about -0.07MP~-0.08MP, and you can make 80% DEET gel (mass percentage, the same below).

Embodiment 2

[0028] 100g of mosquito repellent and sunscreen gel is prepared from the following components: 60g of DEET, 5g of butylmethoxydibenzoylmethane, 5g of diethylhexylbutyrylamide triazone, 3g of nanoscale titanium dioxide, and hydrophobic silica by vapor phase method 7g, 95% ethanol to make up to a total of 100g.

[0029] The preparation method is the same as in Example (1), and the 60% DEET gel can be prepared by standing still and vacuumizing.

Embodiment 3

[0031] 100g mosquito repellent sunscreen gel is prepared from the following components: 40g DEET, 5g isooctyl 2-cyano-3,3-diphenylacrylate, 5g diethylaminohydroxybenzoyl hexyl benzoate, nano Grade zinc oxide 2g, gas-phase method hydrophilic silica 10g, 95% ethanol to make up to a total of 100g.

[0032] The preparation method is the same as in Example (1), and the 40% DEET gel can be prepared by standing still and vacuumizing.

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PUM

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Abstract

The invention relates to mosquito-repelling sunscreen gel and a preparation method thereof, belonging to the technical field of daily-use chemical industries. The mosquito-repelling sunscreen slow-release gel disclosed by the invention comprises the following components in percentage by weight: 40-90% of DEET, 3-15% of a sun-screening agent, 1-15% of a thickening slow-release agent and the balance of ethanol with the volume concentration of 95%. According to the invention, the concentration of DEET is increased; white carbon black is used as the thickening agent of the gel and also can greatly increase the slow-release effect; because chemical sun-screening agents and physical sun-screening agents are matched, the mosquito-repelling sunscreen gel is capable of repelling mosquitoes effectively for a long time and screening sun after being smeared, and thus, the mosquito-repelling sunscreen gel is particularly applied to operators working in wild field for a long time.

Description

technical field [0001] The invention relates to the field of daily chemical products, in particular to a mosquito repellent and a preparation method thereof. Background technique [0002] For a long time, DEET has been recognized as a broad-spectrum mosquito repellent with good practical application effect. It can repel various blood-sucking pests such as mosquitoes, fleas, ticks, black flies, red flies, deer flies, horse flies, sand flies, stable flies, midges, mites, gnats, ticks, etc. It has good repelling effect and wide application range , The characteristics of low toxicity. [0003] A variety of mosquito repellent formulations have been derived on the market at present. Such as, mosquito repellent toilet water, mosquito repellent water, mosquito repellent balm, mosquito repellent cream and so on. Mosquito repellent is easy to use and is not limited by time and conditions of use. It can be directly applied to bare skin to achieve mosquito repellent effect. It is esp...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61K8/49A61K8/44A61K8/42A61K8/04A61K8/19A61K8/81A61Q17/02A61Q17/04
Inventor 姚志牛
Owner 江苏功成生物科技有限公司
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