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Liquid herbicidal composition

A herbicidal composition and a technology for the composition are applied in the directions of animal repellents, plant growth regulators, botanical equipment and methods, etc., and can solve problems in the stability of the herbicidal composition, high cost and time, and reduced stability, etc. problem, to achieve the effect of easy long-term storage, excellent herbicidal activity, and low decomposition rate

Active Publication Date: 2020-06-26
LG CHEM LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wettable powders, emulsifiable concentrates, or water-dispersible granule formulations are usually prepared as sprayable liquids by diluting with water to a predetermined concentration, but there is a problem that it is too costly to spray them evenly over the entire surface of a paddy field or field. cost and time as it should be applied in large quantities
[0010] However, ensuring the stability of herbicidal compositions comprising such sulfonylurea-based herbicidally active substances remains problematic
In particular, it is difficult to store suspension concentrate (SC) formulations for long periods of time, as the stability is further reduced by hydrolysis when stored at high temperature

Method used

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  • Liquid herbicidal composition
  • Liquid herbicidal composition
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Examples

Experimental program
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Effect test

Embodiment 1

[0061] The preparation process is roughly divided into two steps, such as the wet part step and the thickening part step, and is carried out at room temperature.

[0062] By adding water to dipotassium hydrogen phosphate (K 2 HPO 4 ) and potassium dihydrogen phosphate (KH 2 PO 4 ) to prepare 1 L of solution to prepare 0.1 M phosphate buffer (pH 6.15). After that, 3.0 parts by weight of CR-DOS70P (di(2-ethylhexyl) sulfosuccinate sodium salt, Cas No.577-11-7), 1.0 parts by weight of NK-SU500 (sucrose laurate, Cas No. 25339-99-5) and 0.2 parts by weight of SAG-622 (Momentive) as an antifoaming agent were added to 65.8 parts by weight of buffer and mixed well. In a homogenized state, 10.0 parts by weight of methoxyacetic acid 1-(3-{[(4,6-dimethoxy-pyrimidin-2-yl)carbamoyl]sulfamoyl}-2- Pyridyl)-2-fluoropropyl ester (flupisulfuron, FTS) was added to the mixture, followed by thorough mixing using a stirrer. Here, the mixture was ground using glass beads until the average parti...

Embodiment 2

[0066] A herbicidal composition in the form of a suspension concentrate formulation was prepared in the same manner as in Example 1 except that the pH of the wet part buffer and the thickening part buffer were changed to 5.8.

Embodiment 3

[0068] A herbicidal composition in the form of a suspension concentrate formulation was prepared in the same manner as in Example 1, except that 2 parts by weight of propylene glycol was added for the thickening part and 17.7 parts by weight of a phosphate buffer was added.

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Abstract

The present invention relates to a liquid herbicidal composition and, more specifically, to a liquid herbicidal composition comprising: an active ingredient comprising a pyridine sulfonylurea compoundrepresented by chemical formula (1); and a buffer solution having a pH of from 5.80 to 6.25. The present invention provides a liquid herbicidal composition which has enhanced herbicidal activity as well as enhanced stability even in a liquid formulation and particularly, in a suspension concentrate formulation, and thus facilitates long-term storage.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2017-0153279 filed on November 16, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a liquid herbicidal composition, and more particularly, to a liquid herbicidal composition comprising a herbicidal active ingredient exhibiting excellent herbicidal activity. Background technique [0004] In crop farming technology, it is important to protect crops by controlling weeds that inhibit the growth of crops. In order to reduce damage such as reduction in crop growth or yield caused by weeds arising in crop growing areas, herbicidal active substances that can effectively control and are safe to crops have been developed. Many herbicidally active substances developed so far have been registered for specific crops and used for weed control....

Claims

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Application Information

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IPC IPC(8): A01N47/38A01N25/02A01N25/24A01N25/14
CPCA01N25/02A01N25/14A01N25/24A01N47/38
Inventor 柳基铉全三才
Owner LG CHEM LTD
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