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 i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

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

[0026] Preparation method: (1) Heat DEET, octyl methoxycinnamate and benzophenone-3 to 65~75℃ to completely dissolve; (2) Cool to 25℃~35℃, add nanometer titanium dioxide, homogenize 20~30min; (3) Add 8g of vapor-phase hydrophilic white carbon black by volume, homogenize for 20~30min after adding completely; (4) Add the remaining volume concentration of 95% ethanol to adjust the content, stir evenly, stand still, 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).

Example Embodiment

[0027] Example 2

[0028] 100g mosquito repellent sunscreen gel is prepared from the following components: DEET 60g, butylmethoxydibenzoylmethane 5g, diethylhexylbutyramidotriazinone 5g, nano-sized titanium dioxide 3g, vapor phase hydrophobic silica 7g, 95% ethanol makes up to a total of 100g.

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

Example Embodiment

[0030] Example 3

[0031] 100g mosquito repellent sunscreen gel is prepared from the following components: DEET 40g, 2-cyano-3,3-diphenyl isooctyl acrylate 5g, diethylamino hydroxybenzoyl benzoate 5g, nanometer Grade zinc oxide 2g, vapor phase hydrophilic white carbon black 10g, 95% ethanol to make up the total to 100g.

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

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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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