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Agricultural compositions comprising an oil-in-water emulsion based on oil globules coated with a lamellar crystal coating

A technology of oil-in-water emulsion and composition, which is applied in the direction of chemicals for biological control, animal husbandry, biocides, etc., and can solve the problems of no use

Inactive Publication Date: 2008-07-30
DOW AGROSCIENCES LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these types of emulsions have found beneficial applications in personal care products, these types of emulsions have not previously been used with agriculturally active compounds, which are often present in the emulsions at much higher levels active ingredients in cosmetics

Method used

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  • Agricultural compositions comprising an oil-in-water emulsion based on oil globules coated with a lamellar crystal coating
  • Agricultural compositions comprising an oil-in-water emulsion based on oil globules coated with a lamellar crystal coating
  • Agricultural compositions comprising an oil-in-water emulsion based on oil globules coated with a lamellar crystal coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Example 1: Haloxyfop-R methyl oil-in-water emulsion

[0077] Oil phase A wt%

[0078] Efficient grass cover 20.0

[0079]Capric / caprilic triglyceride

[0080] 10.0

[0081] (Myritol 312 from Cognis Care Chemicals)

[0082] diglyceryl monostearate

[0083] 2.0

[0084] (Nikkol DGMS from Nikko Chemical Co.)

[0085] Sorbitol (40EO) Stearate (Tween 61 by Uniqema) 1.5

[0086] n-Stearyl Glutamic Acid Disodium Salt

[0087] 0.5

[0088] (Amisoft HS-21P by Ajinomoto)

[0089] Aqueous Phase B

[0090] Deionized water 66.0

[0091] The two steps of the process were carried out at a temperature of 70°C. The size of the oil globules in the oil-in-water emulsion was determined to be 154 nm by Malvern Zetasizer. Under the accelerated storage test conditions of 2 weeks at 54°C, the oil-in-water emulsion ...

Embodiment 2

[0092] Example 2: High-efficiency Gai Cao Energy Oil-in-Water Emulsion

[0093] Oil Phase A wt%

[0094] Efficient grass cover 11.2

[0095] Methylated Rapeseed Oil (Emery 2231 by Cognis) 18.6

[0096] diglyceryl monostearate

[0097] 2.0

[0098] (Nikkol DGMS from Nikko Chemical Co.)

[0099] Sorbitol (40EO) Stearate (Tween 61 by Uniqema) 1.5

[0100] n-Stearyl Glutamic Acid Disodium Salt

[0101] 0.5

[0102] (Amisoft HS-21P by Ajinomoto)

[0103] Aqueous Phase B

[0104] Deionized water 66.2

[0105] The two steps of the process were carried out at a temperature of 70°C. The oil globule size in the oil-in-water emulsion was determined to be 184 nm by Malvern Mastersizer.

Embodiment 3

[0106] Example 3: 2,4-D Butoxyethyl Ester Oil-in-Water Emulsion

[0107] Oil Phase A wt%

[0108] 2,4-D butoxyethyl ester 35.0

[0109] Capric / Caprylic Triglyceride 5.0

[0110] (Myritol 312 from Cognis Care Chemicals)

[0111] Diglyceryl monostearate 2.0

[0112] (Nikkol DGMS from Nikko Chemical Co.)

[0113] Sorbitol (40EO) Stearate (Tween 61 by Uniqema) 1.4

[0114] n-Stearyl glutamate disodium salt 0.1

[0115] (Amisoft HS-21P by Ajinomoto)

[0116] Aqueous Phase B

[0117] Deionized water 56.5

[0118] The two steps of the process were carried out at a temperature of 70°C. The size of the oil globules in the oil-in-water emulsion was determined to be 207 nm by Malvern Mastersizer. Under the accelerated storage test conditions of 2 weeks at 54°C, the oil-in-water emulsion was stable and showed no change in oil droplet size, no sedimentation or syneresis.

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Abstract

The present invention relates to a composition comprising an oil-in-water emulsion, wherein the emulsion comprises oil droplets each having a lamellar liquid crystal coating and dispersed in an aqueous phase, wherein each oil droplet comprises at least one Agriculturally active compounds, and respectively covered with a monolamellar or oligolamellar layer, said layer comprising: (1) at least one non-ionic lipophilic surfactant, (2) at least A nonionic hydrophilic surfactant and (3) at least one ionic surfactant, wherein the oil beads have an average particle diameter of less than 800 nanometers.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 703,525, filed on July 28, 2005, and U.S. Provisional Application No. 60 / 730,529, filed on October 26, 2005. Technical field [0002] This invention relates to stable, agricultural oil-in-water emulsion compositions. Background technique [0003] Liquid active ingredients or concentrated oil-in-water emulsions of active ingredients dissolved in solvents are commonly used in agricultural compositions due to their advantages over other formulation types. Emulsions are water-based and contain little or no solvent, allowing a mixture of active ingredients to be combined into a simple formula and compatible with a variety of packaging materials. However, agricultural emulsions also have several disadvantages, namely that they are usually complex formulations that require large amounts of surfactants to stabilize them, they are often very viscous, they have emulsion globules, Ostwald ripening trends...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/30A01N25/34A01N57/16A01N43/40A01N39/04A01N39/02A01N37/06A01P3/00A01P7/00A01P13/00
CPCA01N25/04A01N57/16A01N43/40A01N39/04A01N39/02A01N37/06A01N25/34A01N25/30A01N25/02
Inventor H·坦克R·L·希尔R·E·小鲍彻D·G·乌斯J-T·西蒙内
Owner DOW AGROSCIENCES LLC