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Method for preparing microemulsion, aqueous emulsion and suspending agent contg. Dola-mycetin and Sala-mycetin

A technology of selamectin and doramectin, which is applied in the field of new pesticide formulations to achieve the effect of improving drug efficacy, good drug effect and reducing harm to human body

Inactive Publication Date: 2007-04-18
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestically, doramectin and selamectin are mainly used in veterinary drugs, but have not been widely used in pesticides

Method used

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  • Method for preparing microemulsion, aqueous emulsion and suspending agent contg. Dola-mycetin and Sala-mycetin
  • Method for preparing microemulsion, aqueous emulsion and suspending agent contg. Dola-mycetin and Sala-mycetin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 1.8% doramectin or selamectin microemulsion:

[0043] Take 3.6g of doramectin or selamectin (the active ingredient of doramectin or selamectin ≥ 50%), dissolve it with 6g of dimethylformamide and 7g of acetone, and then add styrylphenol polyoxyethylene Ether and alkyl polyoxyethylene ether formaldehyde condensate mixed emulsifier 12g, azone 1g, ethylene glycol 1g, urea 1g, heated to 40-50°C and stirred to dissolve, then added the measured water into it, vigorously stirred evenly, Maintain for 15-20 minutes, and then return to room temperature to obtain a 1.8% doramectin or selamectin microemulsion.

Embodiment 2

[0044] Example 2 2.0% doramectin or selamectin aqueous emulsion:

[0045] Formula: 4g of doramectin or selamectin (50% of the active ingredients of doramectin or selamectin are taken on average), 5g of dimethylformamide, 6g of acetone, vinyl phenol polyoxyethylene ether and alkyl Polyoxyethylene ether formaldehyde condensate mixed emulsifier 6g, polyvinyl alcohol 1g, ethylene glycol 1g, silicone defoamer 0.5g, the balance water.

[0046] preparation steps

[0047]1. Put 5g of dimethylformamide and 6g of acetone into the reactor and mix them evenly, add 4g of doramectin or selamectin, and keep stirring until the doramectin or selamectin is completely dissolved in it to prepare Oil spare.

[0048] 2. Put a good amount of water into the reactor, then add 6g of styrene-based phenol polyoxyethylene ether and alkyl polyoxyethylene ether formaldehyde condensate mixed emulsifier, 1g of polyvinyl alcohol, 1g of ethylene glycol, defoaming Add 0.5g of organic silicon as an additive, a...

Embodiment 3

[0050] Example 3 4.8% doramectin or selamectin suspension:

[0051] Grind 48g of doramectin or selamectin (50% of the active ingredients of doramectin or selamectin on average) to below 300 microns, add 10g of sodium dodecylbenzenesulfonate, 10g of Tween-80 , arylphenol polyoxyethylene ether 10g, bentonite 10g, sodium carboxymethylcellulose 15g, sodium lignosulfonate 15g, xanthan gum 15g, ethylene glycol 75g, sodium benzoate 0.5g, defoamer 0.5g, add water Stir to 500ml, carry out ultrafine pulverization through a sand mill, and grind for 60 minutes to obtain a suspending agent.

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Abstract

A process for preparing the microemulsion, aquatic emulsion, or suspension of doramectin and tiaramectin is disclosed. They have the improved insecticiding activity but no environmental pollution.

Description

technical field [0001] The invention belongs to the field of new formulations of pesticides, and relates to biological insecticides and acaricides made from doramectin and selamectin biological pesticides, namely doramectin, selamectin microemulsion, aqueous emulsion and suspension and its preparation method. technical background [0002] Doramectin is a secondary metabolite produced by microorganisms, and Selamectin is derived from doramectin, both of which belong to the abamectin class of biological pesticides. The insecticidal activity and pharmacokinetic characteristics of the two have been further improved and improved compared with abamectin. These two antibiotics have excellent activity against internal and external parasites, and also have insecticidal activity against many pests that harm crops. In agricultural production, doramectin and selamectin have good application prospects, because doramectin , Selamectin not only has extremely high activity against Lepidop...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N25/02A01P7/04
Inventor 向文胜王丽王相晶
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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