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Microcapsule of dimethyl ester fumarate and preparation method

A technology of dimethyl fumarate microcapsules and dimethyl fumarate, which can be used in botany equipment and methods, animal repellants, biocides, etc., and can solve irritation, acute injury to the human body, and limited application range, etc. problem, achieve the effect of reducing stimulation, improving product quality and reducing production cost

Inactive Publication Date: 2005-03-30
王立峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because this product has a strong stimulating effect on the skin and eyes of the operator, it is easy to cause acute damage to the human body, so its application range is greatly limited.

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] To prepare DMF microcapsules, DMF is first pulverized, passed through a vibrating sieve, and particles between 40-100 mesh sieves are selected as the core material of the microcapsules as required, because if the particle size distribution is not concentrated during the coating process, the larger particles are easily Coated, the smaller part of the particles (<120 mesh) has a low success rate of coating and the thickness of the coating is thin, and the finished product still has a large irritation. The wall material of microcapsules is refined paraffin or other animal waxes, vegetable waxes, and synthetic polymer materials (such as denatured waxes, denatured resins, solidified oils, fatty acids, long-chain alcohols, fatty acid esters, fatty amides, and polyethylene, etc.).

[0017] When coating, use the dispersion kettle as the container, use water as the inert medium, add paraffin or other wall materials, heat the water temperature to 10-20°C above the melting point o...

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PUM

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Abstract

A dimethyl fumarate (DMF) softgel is composed of the core prepared from DMF particles and the wall layer prepared from refined paraffin wax, animal wax, plant wax, or synthetic high-molecular material. Its advantages are no irritation to people, and high output rate and effect.

Description

technical field [0001] The invention relates to a preparation method of an antifungal and antibacterial agent, in particular to dimethyl fumarate microcapsules and a preparation method thereof. Background technique [0002] Dimethy fumarate (Dimethy fumarate) is referred to as DMF, the chemical name is dimethyl fumarate, and the molecular formula is C 6 h 8 o 4 , the appearance is white flake or powder crystal, easy to sublimate, it is a low-cost, high-efficiency, broad-spectrum, safe anti-mold and antibacterial agent. The anti-mildew and anti-bacterial effect of DMF is not affected by the pH value, and the action time is long, and the effect is excellent with a small amount of addition. However, because this product has a strong stimulating effect on the skin and eyes of the operator, it is easy to cause acute injury to the human body, so its application range is greatly limited. Contents of the invention [0003] The purpose of the present invention is to provide a k...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01N37/06
Inventor 王立峰
Owner 王立峰
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