Dichlorvos. pyridaben smoking agent and its preparation method

A technology for aerosols and pyridaids, which is applied in the field of aerosols, can solve the problems of waste, inability to implement spraying, etc., and achieve the effects of low cost, large coverage and high efficacy.

Inactive Publication Date: 2003-09-24
TIANJIN JIURI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the above-mentioned insect pests are treated with emulsifiable concentrates, wettable powders and water suspensions. When applying, a large amount of water needs to be sprayed with water mist. When there is water source, a lot of precious water is wasted, and when there is no water source. In this situation, spraying cannot be carried out
[0003] At present, there are no data reports and products published at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The formula components and content are: 0,0-dimethyl-0-(2,2-dichlorovinyl) phosphate, also known as dichlorvos and 2-tert-butyl-5-(4-tert-butylbenzylsulfide base)-4-chloro-2H-pyridazin-3-ketone is also called pyridaben in any proportion and total 5%, and the composite surfactant Nongru No. 500, Nongru No. 600 and Nongru No. 700 are in total 10% %, solvent aromatic hydrocarbon No. 2 84.9%, co-solvent dimethyl sulfoxide 0.1%.

[0028] The preparation method is as follows: first, add the stated proportion of solvent aromatic hydrocarbon No. 2 and co-solvent dimethyl sulfoxide into a preparation kettle, and add the stated proportion of 0,0-dimethyl-O-(2,2- Dichlorovinyl) phosphate and 2-tert-butyl-5-(4-tert-butylbenzylthio)-4-chloro-2H-pyridazin-3-one, stir and heat to 50°C until the original drug is completely After dissolving, add the composite surfactant Nongru No. 500 in the stated ratio; stir until a transparent solution is formed, filter to remove a very small amount...

Embodiment 2

[0030] The formula components and content are: dichlorvos and pyridaben in any proportion total 30%, composite surfactant OP-7 0.1%, solvent liquid paraffin and triethylene glycol in total 60% in any proportion, cosolvent ethylene glycol and diethylene glycol Methyl sulfoxide is 9.9% in any proportion. The preparation method is the same as in Example 1.

Embodiment 3

[0032] The composition and content of the formula are: dichlorvos and pyridaben in total 40% in any proportion, complex surfactant castor oil 10%, solvent aromatics No. 3 and white oil in total 44% in any proportion, and co-solvent propylene glycol 6%. The preparation method is the same as in Example 1.

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PUM

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Abstract

The present invention relates to a dichlorvos and pyridaben mixed smoking agent and its preparation. Its composition includes (wt%) 5-40% of dichlorvos and pyridaben, 0.1-10% of cosolvent, 20-90% of high boiling point solvent and 0.1-30% of compound surfactant. The high boiling point is one of arene No.2 and No.3, liquid paraffin, white oil, chloroben, diglycol and triglycol or several kinds of them, and the cosolvent is one of methyl-sulfoxide, N,N-dimethylformamide, ethanediol and propanetriol or several kinds of them, and the compound surfactant is one of calcium alkylbenzenesulfonate, alkylphenol ethoxylates, phenethylphenol ethoxylates, alkylphenol ethoxylates formaldehyde condensate, castor oil polyethenoxy ether and sec-alkylol polyethenoxy ether or several kinds of them. Besides, it provides its preparation method.

Description

technical field [0001] The present invention relates to a kind of 0,0-dimethyl-0-(2,2-dichlorovinyl) phosphate (also known as dichlorvos) and 2-tert-butyl-5-(4-tert-butylbenzylthio )-4-chloro-2H-pyridazin-3-one (also known as pyridaben) mixed aerosol (also known as divos·pyridaben aerosol or thermal aerosol) and its preparation method. Background technique [0002] Dichlorvos·pyridaben insecticide is a mixed insecticide of dichlorvos and pyridaben, which is mainly used to control citrus red spiders, aphids, mites and other pests and diseases. Studies have shown that when dichlorvos and pyridaben are mixed in a certain proportion, the effect of preventing diseases and insect pests is higher than that of their respective single doses with the same active ingredient content, that is, they have a synergistic effect. At present, most of the above-mentioned insect pests are treated with emulsifiable concentrates, wettable powders and water suspensions. When applying, a large amou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/18A01N57/12
Inventor 刘同英解敏雨
Owner TIANJIN JIURI NEW MATERIALS CO LTD
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