Mancozeb enveloping compound pesticide preparation

A technique for mancozeb and pesticide preparations, which is applied in the field of pesticide chemistry, and can solve the problems such as the failure to find documents and materials of mancozeb cyclodextrin inclusion compound preparations

Inactive Publication Date: 2003-09-24
西安敬业生物药物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the retrieval, no literatures about mancozeb cyclodextrin inclusion compound preparations were found

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1. Add 68g of substituted mancozeb and 800ml of water, add 1000g of "polyethylene glycol 600" and stir and emulsify for 1 hour to make an emulsion; take another 150g of β-cyclodextrin and add 1 liter of water to dissolve it, and stir at 60°C , slowly add the mancozeb emulsion, and continue to stir for 2 hours to obtain a stable emulsion of pesticide inclusions. The liquid can be dried by a powder spraying machine to obtain a powder.

Embodiment 2

[0012] Example 2, add 30g of Mancozeb substituted with 500ml of water, add 60g of "polyethylene glycol 2000" and stir and emulsify for 1 hour to make an emulsion, and take another 500g of mixed cyclodextrin (containing α-, β- and γ-cyclodextrin Add 2 liters of water to dissolve, add mancozeb emulsion slowly at 50°C, continue to stir for 2 hours, then add 8g of sodium dodecylsulfonate and continue to stir for 1 Hours, a stable emulsion of pesticide complexes was obtained. The powder can be obtained by passing this liquid through a drying powder spraying machine.

Embodiment 3

[0013] Example 3: Add 60g of substituted mancozeb, add 500ml of water, add 86g of Tween and stir and emulsify for 1 hour to make an emulsion, take another 550g of a mixture of α- and β-cyclodextrin, add 2 liters of water to dissolve, mix the two and then mix them at 40KHz Under the above conditions, ultrasonic treatment is used for 1 hour to obtain a stable emulsion of pesticide inclusions. The liquid can be dried by a powder spraying machine to obtain a powder.

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PUM

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Abstract

The present invention relates to a mancozeb inclusion complex pesticide preparation. It is made up by including the mancozeb molecules with cyclodextrin with cyclic molecular structure. The describedcyclodextrin can be one of various cyclodextrins and its derivatives or mixture of them. Because several hydroxyl groups are distributed on the exterior of the cyclodextrin, it has good hydrophilic property, said cyclodextrin can be dissolved in water, so that the stability, water solubility and emulcification stability of the compound included by cyclodextrin can be raised, at the same time the release speed of the medicine included by said cyclodextrin can be delayed, and in the biological body said medicine can be quickly released.

Description

technical field [0001] The invention belongs to the technical field of pesticide chemistry, and in particular relates to the improvement of mancozeb pesticide preparations. Background technique [0002] Mancozeb (mancozeb) is a broad-spectrum anti-plant virus pesticide with low toxicity and good safety. It has good medicinal effects on leaf spot, ring spot, brown spot, scab, leaf spot, anthracnose, black spot, downy mildew, fruit shrinkage, and rot of fruits and vegetables. Mancozeb is insoluble in water and most organic solvents. This product cannot be mixed with strong acid or strong alkaline drugs, and it is easy to decompose under high temperature in the sun or in case of humidity. Currently commercially available products are all dry powders with additives and fillers added, such as 80% BAK powder, which can only be sprayed with dry powder, which affects the absorption of crops and its contact with viruses, reducing the use effect . In addition, mancozeb is easily o...

Claims

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Application Information

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IPC IPC(8): A01N47/24
Inventor 郝英俊谢伯泰
Owner 西安敬业生物药物科技有限公司
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