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Stable liquid formulations of prothioconazole

A technology for prothioconazole and preparations, which is applied in the field of agrochemical liquid preparations and can solve difficult problems such as preparation development

Active Publication Date: 2019-12-31
UNITED PHOSPHORUS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Formulation development becomes tricky if water-insoluble prothioconazole needs to be combined with another water-insoluble active ingredient
[0008] Therefore, it is challenging to develop stable liquid formulations of prothioconazole in which the active ingredient of prothioconazole remains in the formulation even after prolonged storage

Method used

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  • Stable liquid formulations of prothioconazole
  • Stable liquid formulations of prothioconazole
  • Stable liquid formulations of prothioconazole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] According to the stable liquid preparation of a kind of prothioconazole of the present invention, as follows:

[0117] Element Amount (gm / Kg) Prothioconazole 55.0 Sodium lignosulfonate 40.0 monoethylene glycol 75.0 copper sulfate 2.5 Defoamer 3.0 potassium carbonate 8.0 xanthan gum 1.0 water Appropriate amount

[0118] Procedure: Mix prothioconazole with monoethylene glycol and sodium lignosulfonate. While stirring the mixture, add the defoamer and xanthan gum. Additional copper sulfate and potassium carbonate were added and stirred until the mixture became homogeneous.

[0119] The formulation was found to be stable and no degradation of prothioconazole was observed after 14 days at 54°C.

Embodiment 2

[0121] A stable liquid formulation of prothioconazole and mancozeb according to the invention is prepared as follows:

[0122] Part 1: Prothioconazole 385g / kg SC premix

[0123] Element Amount (g / Kg) Prothioconazole (98.5%) 387.6 monoethylene glycol 67.0 Sodium lignosulfonate 37.9 Defoamer 8.2 xanthan gum 1.2 water q.s

[0124] Procedure: Mix prothioconazole with monoethylene glycol and sodium lignosulfonate. While stirring the mixture, add the defoamer and xanthan gum. Continue stirring until the mixture becomes homogeneous.

[0125] Part 2: Mancozeb 430g / kg premix

[0126] Element Amount g / kg Mancozeb (85%) 508.7 monoethylene glycol 36.0 Sodium lignosulfonate 32.3 Defoamer 2.9 water q.s

[0127] Procedure: Mix mancozeb with monoethylene glycol and sodium lignosulfonate. While stirring the mixture, add the defoamer and xanthan gum. Continue stirring until the mixture become...

Embodiment 12

[0141] Example 12: Prothioconazole + mancozeb + pyraclostrobin SC

[0142] The preparation of a stable liquid formulation of prothioconazole, mancozeb and pyraclostrobin according to the present invention is as follows:

[0143] Part 1: Prothioconazole + pyraclostrobin SC premix

[0144] Element Amount (g / kg) Prothioconazole (98.7%) 188.7 Pyraclostrobin (99%) 235.0 Monopropylene Glycol 68.8 Sodium lignosulfonate 37.3 Defoamer 8.5 Enhancer 1.8 water Appropriate amount

[0145] Procedure: Mix prothioconazole and pyraclostrobin with monopropylene glycol, sodium lignosulfonate, defoamer and a portion of water. This mixture is bead milled until the desired particle size is achieved. Add the thickener to the premix and continue mixing until the mixture becomes homogeneous.

[0146] Part 2: Mancozeb SC Premix

[0147] Element Amount (g / kg) Mancozeb 85% 504.7 Monopropylene Glycol 36.4 Sodium lign...

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Abstract

A formulation comprising prothioconazole and a stabilizing amount of a transition metal salt, optionally a co-pesticide, optionally two co-pesticides, a process for the preparation thereof, a method of use thereof and kit comprising the components thereof is disclosed.

Description

technical field [0001] The present invention relates to stable agrochemical liquid formulations comprising prothioconazole. Background technique [0002] Fungi are one of the leading causes of crop loss worldwide, so fungicides are considered an important class of pesticides. Fungicides are specific types of pesticides that are widely used to control fungal diseases by inhibiting or killing disease-causing fungi. [0003] Triazoles are one of the largest classes of fungicides and have been found to be very effective as broad-spectrum fungicides. A particularly important triazole fungicide is 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro- [1,2,4-]-Triazole-3-thione. The generic name for this triazolinthione fungicide is prothioconazole. Prothioconazole is a sterol demethylation (ergosterol biosynthesis) inhibitor used in agriculture as a fungicide. [0004] US5789430 discloses prothioconazole and its use as a microbicide in plant protection. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N43/653A01P3/00
CPCA01N25/02A01N43/653A01N47/14A01N47/24A01N25/22A01N25/30A01N59/04A01N59/16A01N59/20A01N25/04
Inventor 亚历山大·科内利斯·范德拉恩拉詹·希尔萨特加德夫·拉耶尼肯特·施洛夫维克拉姆·拉耶尼肯特·施洛夫
Owner UNITED PHOSPHORUS LTD
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