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Thifensulfuron methyl and clodinafop-propargyl water dispersible granule and preparation method and application thereof

A technology of thifensulfuron-methyl and thifensulfuron-methyl technical, which is applied in the field of pesticides, can solve the problems of dust and organic solvent environmental pollution, application restrictions, narrow weeding spectrum, etc., and achieve the goals of wide application area, small dosage and improved drug efficacy Effect

Active Publication Date: 2015-12-09
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Single-use drugs have the disadvantages of narrow herbicidal spectrum and large dosage, so their use is limited, and the compounding of two agents with different mechanisms of action is one of the effective ways to solve the above problems
According to the physical and chemical properties of the two active ingredients, the combination of the two is easier to prepare wettable powder and emulsifiable concentrate, but these two formulations have the problem of environmental pollution caused by dust and organic solvents, which are limited in application

Method used

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  • Thifensulfuron methyl and clodinafop-propargyl water dispersible granule and preparation method and application thereof
  • Thifensulfuron methyl and clodinafop-propargyl water dispersible granule and preparation method and application thereof
  • Thifensulfuron methyl and clodinafop-propargyl water dispersible granule and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 120

[0022] Embodiment 120% thifensulfuron-clodinafop-propargyl water-dispersible granules

[0023] The formula is: thifensulfuron-methyl 4%, clodinafop-propargyl 16%, polycarboxylate sodium salt 4%, calcium lignosulfonate 2%, sodium lauryl sulfate 1.5%, sodium lignosulfonate 1.5%, ethylene glycol Disodium amine tetraacetate 2%, ammonium sulfate 4.5%, urea 3%, white carbon black 5%, corn starch added to 100%.

[0024] The preparation method is as follows: mix the thifensulfuron-methyl original drug, clodinafop-propargyl original drug, dispersant, wetting agent, chelating agent, disintegrant, adsorbent, and filler in a mixer evenly, and pulverize it to the particle size through a jet mill. After 600-800 mesh, mix evenly, then add water with 20-30% of the total mass of the material for kneading, after kneading, carry out extrusion granulation, and dry the obtained granules at 40-50°C to make water-dispersible granules .

Embodiment 244

[0025] Embodiment 244% thifensulfuron-clodinafop-propargyl water-dispersible granules

[0026] The formula is: thifensulfuron-methyl 11%, clodinafop-propargyl 33%, polycarboxylate sodium salt 4%, calcium lignosulfonate 2%, sodium lauryl sulfate 1.5%, sodium lignosulfonate 1.5%, ethylene glycol Disodium amine tetraacetate 2%, ammonium sulfate 4.5%, urea 3%, white carbon black 5%, corn starch added to 100%.

[0027] The preparation method is the same as in Example 1.

Embodiment 330

[0028] Embodiment 330% thifensulfuron-clodinafop-propargyl water-dispersible granules

[0029] The formula is: thifensulfuron-methyl 10%, clodinafop-propargyl 20%, polycarboxylate sodium salt 4%, calcium lignosulfonate 2%, sodium lauryl sulfate 1.5%, sodium lignosulfonate 1.5%, ethylene glycol Disodium amine tetraacetate 2%, ammonium sulfate 4.5%, urea 3%, white carbon black 5%, corn starch added to 100%.

[0030] The preparation method is the same as in Example 1.

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Abstract

The invention discloses thifensulfuron methyl and clodinafop-propargyl water dispersible granule, prepared from the following components in percentage by weight: 20-75% of medicine active components, 4-10% of dispersant, 2-5% of wetting agent, 1-5% of chelating agent, 1-20% of disintegrating agent, 1-10% of adsorbent and the balance of filler. The medicine active components comprise thifensulfuron methyl and clodinafop-propargyl with a mass ratio of 1-8:1-8. The invention also discloses a preparation method and application of the water dispersible granule. The thifensulfuron methyl and clodinafop-propargyl are compounded and prepared into the water dispersible granule with high hardness water quality resistance. The preparation can be used for a water cornfield to weed annual broad leaf and grassy weed, is good in weeding effect, delays weed resistance, expands a weeding spectrum and improves safety to crops.

Description

technical field [0001] The invention relates to a pesticide water-dispersible granule, in particular to a water-dispersible granule whose active ingredients are thifensulfuron-methyl and clodinafop-propargyl, its preparation method and application, and belongs to the technical field of pesticides. Background technique [0002] Thifensulfuronmethyl, chemical name: 3-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfonyl)thiophene-2-carboxylic acid. Thifensulfuron-methyl is a high-efficiency selective post-emergence stem and leaf treatment agent, which is mainly absorbed and conducted through the leaves and roots of weeds. It can be used for soybean, wheat, corn and other crops to control annual and perennial broad-leaved weeds, such as Abutilon , Amaranthus retroflexus, Swampweed, Humulus, Kochia, Chickweed, Buliuxing, Popona, Purslane, Solanum nigrum, etc., but the control effect on grass weeds is not significant. Common dosage forms in the market include emulsifiable conc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N25/14A01P13/00A01N43/40
Inventor 孙国庆侯永生张全吴勇
Owner SHANDONG WEIFANG RAINBOW CHEM
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