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Insecticidal composition containing chlorpyrifos and dinotefuran

An insecticidal composition, chlorpyrifos technology, applied in the field of pesticides, can solve the problems of high solubility, low oil solubility of dinotefuran, clogged nozzles, etc., and achieve the effect of no increase in particle size and good stability

Active Publication Date: 2019-11-22
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The combination of chlorpyrifos and dinotefuran is prepared into formulations such as emulsifiable concentrate, microemulsion, and water emulsion. Due to the high solubility of dinotefuran in water, dinotefuran is easy to precipitate and crystallize from the water spray liquid to block the nozzle; at the same time, due to the oil solubility of dinotefuran Small, difficult to prepare high content emulsifiable concentrate, microemulsion or water emulsion products

Method used

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  • Insecticidal composition containing chlorpyrifos and dinotefuran
  • Insecticidal composition containing chlorpyrifos and dinotefuran
  • Insecticidal composition containing chlorpyrifos and dinotefuran

Examples

Experimental program
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Effect test

Embodiment 1

[0103]

[0104]

[0105] Prepare the described insecticidal composition as follows:

[0106] Step 1: Add chlorpyrifos, Emulsogen TM EL360, RHODACAL TM 70 / B-C dissolved in SOLVESSO TM In 100, the oil phase containing chlorpyrifos was obtained;

[0107] Step 2: Dinotefuran, methyl oleate, Morwet TM D425, Breakthru TM AF9902 is mixed in proportion, and after stirring evenly, grind with a horizontal agitating ball mill to obtain a continuous phase containing dinotefuran; the d50 is controlled at no more than 3 microns, and the d90 is controlled at no more than 6 microns;

[0108] Step 3: Add the chlorpyrifos-containing oil phase obtained in step 1 into the dinotefuran-containing continuous phase obtained in step 2 under continuous stirring, and add a viscosity regulator fumed silica during the stirring process.

Embodiment 2

[0110]

[0111]

[0112] Prepare the described insecticidal composition as follows:

[0113] Step 1: Add chlorpyrifos, Emulsogen TM EL360, RHODACAL TM 70 / B-C was dissolved in part of methyl oleate to obtain an oil phase containing chlorpyrifos;

[0114] Step 2: Dinotefuran, the remaining amount of methyl oleate, MorwetT M D425, Breakthru TM AF9902 is mixed in proportion, and after stirring evenly, grind with a horizontal agitating ball mill to obtain a continuous phase containing dinotefuran; the d50 is controlled at no more than 3 microns, and the d90 is controlled at no more than 6 microns;

[0115] Step 3: Add the chlorpyrifos-containing oil phase obtained in step 1 into the dinotefuran-containing continuous phase obtained in step 2 under continuous stirring, and add a viscosity regulator fumed silica during the stirring process.

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Abstract

The present invention provides an insecticidal composition containing chlorpyrifos and dinotefuran, the insecticidal composition comprising the following components: (a) a dispersed oil phase comprising: an oil phase in which chlorpyrifos is dissolved; and (b) a continuous phase comprising: a continuous phase in which dinotefuran is suspended, the continuous phase having a solubility less than 10g / kg relative to dinotefuran; the invention also provides a preparation method of the insecticidal composition. The insecticidal composition provided by the invention can be used for preventing or controlling harmful organisms. The preparation of the insecticidal composition containing chlorpyrifos and dinotefuran shows no caking in a low-temperature stability test, shows no particle size increase, no crystallization precipitation and no gelatinization in an accelerated stability test, and has important application value.

Description

[0001] This application is a divisional application with the application number 201510671080.8, the application date is October 16, 2015, and the invention title is "an insecticidal composition containing chlorpyrifos and dinotefuran". technical field [0002] The invention belongs to the field of pesticides, in particular to an insecticidal composition containing chlorpyrifos and dinotefuran and a preparation method thereof. Background technique [0003] Chlorpyrifos is a broad-spectrum organophosphorus insecticide. Its mechanism of action is to inhibit acetylcholinesterase. It has three modes of action: contact killing, stomach poisoning and fumigation. It has a wide insecticidal spectrum and low toxicity. It is one of the main insecticides for pests of economic crops and other commercial crops, and is safe for users. [0004] Chlorpyrifos (Chlorpyrifos) chemical name: O, O-diethyl-O-(3,5,6-trichloro-2-pyridyl) phosphorothioate. Chlorpyrifos belongs to phosphorothioate br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N57/16A01N51/00A01P7/04
CPCY02A50/30
Inventor 罗昌炎詹姆斯·T·布里斯托
Owner JIANGSU ROTAM CHEM