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Aqueous emulsion containing chlorfenapyr and preparation method thereof

A technology of chlorfenapyr and water-emulsion, which is applied in the field of water-emulsion containing chlorfenapyr and its preparation, can solve the problems of compound water-emulsion with no chlorfenapyr component, no registration of water-emulsion, etc., and achieve the purpose of delaying pests The development of drug resistance, the avoidance of flammable and explosive phenomena, and the effect of expanding the insecticidal spectrum

Inactive Publication Date: 2009-04-15
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chlorfenapyr currently has three registered dosage forms in the market: emulsifiable concentrate, microemulsion, and suspension concentrate. There is no registration of emulsion in water, and there is no report on the compound water emulsion of chlorfenapyr and other components of the original drug.

Method used

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  • Aqueous emulsion containing chlorfenapyr and preparation method thereof
  • Aqueous emulsion containing chlorfenapyr and preparation method thereof
  • Aqueous emulsion containing chlorfenapyr and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Calculated by taking the finished water emulsion as the weight of 100kg. Dissolve 10kg of chlorfenapyr (Zibai) with 10kg of cyclohexanone solvent and stir for 10 minutes at room temperature, then add emulsifier 5kg of alkylphenol polyoxyethylene ether phosphate, 1kg of calcium dodecylbenzenesulfonate, 3kg of Ethylene glycol antifreeze agent, 0.05kg defoamer, make up to 100kg with water, stir and mix evenly, then shear with a high-shear emulsifier for 0.5 hour to form a milky white opaque liquid, and obtain 10% chlorfenapyr water emulsion.

[0026] Preparation:

[0027] a. In a container with electric stirring, add chlorfenapyr and organic solvent cyclohexanone, start stirring until chlorfenapyr dissolves, then add emulsifier according to the above formula, and stir to form a uniform oil phase. Reserve as an oil phase.

[0028] b. In a mixing kettle with high-speed shear, add the antifreeze and defoamer into the water sequentially under stirring until they are complete...

Embodiment 2

[0031] Calculated by taking the finished water emulsion as the weight of 100kg. Dissolve 5kg of chlorfenapyr (difenapyr) and 10kg of bifenthrin (difenthrin) in 15kg of xylene solvent at room temperature for 0.5 hours, then add emulsifier 4kg of alkylphenol polyoxyethylene ether phosphate, 2kg of fat Alcohol polyoxyethylene ether phosphate, 3kg ethylene glycol antifreeze, 0.1kg defoamer and water are added to 100kg, after stirring for 0.5 hours, after 0.5 hours of shearing by a high-shear emulsifier, it becomes a milky white opaque liquid, to obtain 15 % chlorfenapyr · bifenthrin aqueous emulsion.

[0032] Preparation:

[0033] a. Add the original drug of chlorfenapyr and bifenthrin into the organic solvent xylene, stir continuously until it is completely dissolved, then add the emulsifier alkylphenol polyoxyethylene ether phosphate, fatty alcohol polyoxyethylene Ether phosphate, stir until well mixed, and set aside as the oil phase.

[0034] b. In a mixing kettle with high-...

Embodiment 3

[0037] Calculated by taking the finished water emulsion as the weight of 100kg. Use 10kg xylene and 6kg cyclohexanone as a solvent to dissolve 5kg of chlorpyrifos and 20kg of chlorpyrifos at room temperature for 0.5 hours, then add emulsifier 4kg of alkylphenol polyoxyethylene ether phosphate , 3kg alkyl aryl polyoxypropylene polyoxyethylene ether, 1kg calcium dodecylbenzene sulfonate, 3kg ethylene glycol antifreeze, 0.05kg defoamer, water to make up to 100kg, after mixing evenly, after high shear Cutting and emulsifying machine shears for 1 hour to become a milky white opaque liquid, that is, a 25% insecticidal aqueous emulsion of chlorpyrifos and chlorpyrifos.

[0038] Preparation:

[0039] a. Add the chlorpyrifos and chlorpyrifos into the organic solvent xylene, stir continuously until the chlorpyrifos and chlorpyrifos are dissolved, then add the emulsifiers alkylphenol polyoxyethylene ether phosphate, alkyl aryl Polyoxypropylene polyoxyethylene ether, calcium dodecylbenz...

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PUM

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Abstract

The invention relates to a water emulsion containing chlorfenapyr and a method for preparing the same. The pesticidal active ingredients of the water emulsion are formed by compounding chlorfenapyr or the chlorfenapyr and one of the pesticidal active ingredients such as bifenthrin, chlorpyrifos, nitenpyram and the like; and other components of the water emulsion comprise a solvent, an emulsifier, a penetrating agent, a synergist, an antifreeze, a defoamer, water and the like. The water emulsion uses a large amount of water to substitute organic solvents, and has low cost and good environmental compatibility.

Description

technical field [0001] The invention relates to a pesticide, in particular to an aqueous emulsion containing chlorfenapyr and a preparation method thereof. Background technique [0002] Chlorfenapyr, English name chlorfenapyr, molecular formula C 15 h 11 BrClF 3 N 2 O, chemical name 4-bromo-2-(4-chlorophenyl)-1-(ethoxymethyl)-5-(trifluoromethyl)pyrrole-3-carbonitrile, also known as Dijin, is the United States An aromatic pyrrole insecticide and acaricide discovered and developed by Cyanoamide Company in the late 1980s. The pesticide was successfully developed by modifying the chemical structure of natural antibiotics. [0003] The compound is a precursor of an insecticide, which itself is non-toxic to insects. Its mechanism of action is that after the insects eat or are exposed to chlorfenapyr, they are converted into insecticidally active compounds through multifunctional oxidases in the insects, and then It acts on the mitochondria in the target worm cells and destro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/36A01N53/06A01N57/16A01N43/40A01N25/04A01P7/00
Inventor 卢镇韦志军李耀秀陈利标
Owner GAUNGXI TIANYUAN BIOCHEM
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