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Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion

A herbicide, water-soluble technology, applied in the field of mixed formulations of oil-soluble herbicides and water-soluble herbicides that are stable oil-in-water emulsions or microemulsions, can solve problems such as increased chemical degradation

Inactive Publication Date: 2004-07-21
MONSANTO TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another challenge is that microemulsions must contain surfactants, which tend to facilitate the transfer of oil-soluble herbicidal actives across large interfaces between the oil and water phases, which increases the potential for chemical degradation

Method used

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  • Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion
  • Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion
  • Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] A microemulsion composition containing the following ingredients was prepared:

[0091] Glyphosate IPA Salt Solution (MON 0139) 67.37% 1

[0092] Ammonium chloride 1.11%

[0093] 2N hydrochloric acid 11.31%

[0094] Solvent (Aromatic 150) 11.93%

[0095] Carfentrazone (91.2% active ingredient) 0.18%

[0096] Emulsifier (Ethomeen T / 15) 3.07%

[0097] Emulsifier (Ethomeen C / 15) 2.95%

[0098] Dispersant (Surfonic L12-6) 2.09%

[0099] 1 Equivalent to 41.77% glyphosate IPA active ingredient.

[0100]Ammonium chloride (0.45 g) was dissolved in 2N hydrochloric acid (4.60 g), and the resulting solution was mixed with MON0139 (27.41 g) to form a first mixture. Carfentrazone (0.0739g) was dissolved in Aromatic 150 (4.85g) to form a second mixture which was then added to the first mixture with stirring. Finally the surfactants Ethomeen T / 15 (1.25g), Ethomeen C / 15 (1.20g) and Sulfonic L12-6 (0.85g) were added and the whole composition was stirred at medium speed for 30 ...

Embodiment 2

[0103] A microemulsion composition containing the following ingredients was prepared:

[0104] Glyphosate IPA salt solution (MON0139) 67.48% 1

[0105] Ammonium chloride 0.27%

[0106] Water 3.62%

[0107] 2N hydrochloric acid 11.32%

[0108] Solvent (Aromatic 150) 2.07%

[0109] Carfentrazone (91.2% active ingredient) 0.18%

[0110] Emulsifier (Ethomeen T / 15) 3.27%

[0111] Emulsifier (Ethomeen C / 15) 1.26%

[0112] Dispersant (Surfonic L 12-6) 2.07%

[0113] 1 Equivalent to 41.84% glyphosate IPA active ingredient.

[0114] Ammonium chloride (0.11 g) was dissolved in water (1.47 g) and 2N hydrochloric acid (4.60 g), and the resulting solution was mixed with MON 0139 (27.41 g) to form a first mixture. Carfentrazone (0.0739g) was dissolved in Aromatic 150 (4.27g) to form a second mixture which was then added to the first mixture with stirring. Finally the surfactants Ethomeen T / 15 (1.33g), Ethomeen C / 15 (0.51g) and Sulfonic L12-6 (0.84g) were added and the whole compo...

Embodiment 3

[0117] A microemulsion composition containing the following ingredients was prepared:

[0118] Glyphosate IPA Salt Solution (MON 0139) 68.29% 1

[0119] Water 3.31%

[0120] 2N hydrochloric acid 11.53%

[0121] Solvent (Aromatic 150) 10.65%

[0122] Carfentrazone (91.2% active ingredient) 0.18%

[0123] Emulsifier (Ethomeen T / 15) 4.36%

[0124] Emulsifier (Ethomeen C / 15) 0.00%

[0125] Dispersant (Surfonic L12-6) 1.67%

[0126] 1 Equivalent to 42.34% glyphosate IPA active ingredient.

[0127] MON 0139 (27.42g) was mixed with water (1.33g) and 2N hydrochloric acid (4.63g) to form a first mixture. Carfentrazone (0.0740 g) was dissolved in Aromatic 150 (4.28 g) to form a second mixture which was then added to the first mixture with stirring. Finally the surfactants Ethomeen T / 15 (1.75 g), and Sulfonic L12-6 (0.67 g) were added and the whole composition was stirred at medium speed for 30 minutes using an overhead electric mixer.

[0128] The composition is a clear amber...

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Abstract

A stable, liquid concentrate herbicidal composition is provided. The composition comprises a water-soluble herbicide in a continuous aqueous phase and an oil-soluble herbicide in a discontinuous oil phase.

Description

technical field [0001] The present invention relates to agriculturally useful compositions comprising at least two herbicidally active ingredients, one of which is an oil-soluble herbicide and the other is a water-soluble herbicide. More particularly, the present invention relates to stable liquid concentrate compositions of the above-mentioned herbicidally active ingredients. Background technique [0002] As a method of killing or controlling unwanted plants such as weeds in agriculture and related fields, it is necessary to treat the plants or their locus with chemical herbicides. A common method of herbicide treatment in the agricultural field is to treat fields to remove or control unwanted vegetation in preparation for planting crops, a process also known as "bumdown". However, a single herbicide usually has a limited control spectrum, for example, the range of weed species that can be effectively controlled by the herbicide is limited, so that various weeds in the fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/22A01N25/30A01N57/20A01P13/00
CPCA01N57/20A01N25/04A01N43/653A01N25/22A01N2300/00
Inventor G·A·吉姆
Owner MONSANTO TECH LLC
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