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Tankmix additive concentrates containing triglyceride fatty acid esters and methods of use

A technology for mixing additives, fatty acid triglycerides, applied in the field of tank mix additive concentrates and uses containing triglyceride fatty acid esters, capable of solving problems such as limited application

Active Publication Date: 2015-03-11
CORTEVA AGRISCIENCE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some herbicides have been shown to be very sensitive phytotoxic to certain plant species at very low parts per million (ppm) or even parts per billion (ppb) Strict restrictions on application are required around residential plantings

Method used

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  • Tankmix additive concentrates containing triglyceride fatty acid esters and methods of use
  • Tankmix additive concentrates containing triglyceride fatty acid esters and methods of use
  • Tankmix additive concentrates containing triglyceride fatty acid esters and methods of use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Non-aqueous, spray drift control adjunct concentrate containing canola oil:

[0047] Vegetable oil based drift control excipient solutions were prepared as follows, containing 200 g / kg canola oil, 200 g / kg Atlox TM DP13 / 6, 25g / kg Atlox TM 4912 (Atlox is a trademark of Croda; Edison, NJ) and 575 g / kg propylene glycol. A 4 ounce (oz) vial was first charged with 20.0 g of canola oil (commercially available). Add 20.0g Atlox to the vial TM DP13 / 6, 2.5g Atlox TM 4912, finally add 57.5g propylene glycol. The mixture was mixed with an overhead agitator to obtain 100 g of a homogeneous excipient concentrate (excipient concentrate 1).

[0048] Table 1: Composition of Excipient Concentrate 1

[0049] combination

wt%

Canola Oil

20.0％

Atlox TM DP13 / 6

20.0％

Atlox TM 4912

2.5％

Propylene Glycol

57.5％

[0050] Analysis of Spray Solutions and Spray Droplets Containing Canola Oil Excipients:

[0051] The s...

Embodiment 2

[0055] Analysis of tank mix herbicide spray solutions and spray droplets containing drift control adjuncts:

[0056] Prepare 2% v / v Herbicide Concentrate and 0.5% v / v Drift Control Adjuvant Concentrate 1 by diluting 10 mL of Herbicide Concentrate and 2.5 mL of Adjuvant Concentrate 1 with 487.5 mL of deionized water (DI water). Aqueous herbicide spray solutions (Table 3). All diluted spray solutions were shaken gently by hand until each sample was homogeneous. Ten herbicide spray dilutions shown in Table 2 containing 2% v / v herbicide concentrate and 0.5% v / v drift control adjuvant and one containing only 2% v / v herbicide concentrate were prepared in this manner. Ten corresponding control dilutions were sprayed and sprayed as described in Example 1. As shown in Table 3, the percentage of driftable fines is expressed as the volume percentage of sprayed droplets with a volume mean diameter (VMD) below 150 μm.

[0057] Table 3. Spray Droplet Analysis of Herbicide Spray Solutio...

Embodiment 3

[0061] Analysis of tank mix spray solutions and spray droplets containing two herbicides and one drift control adjuvant:

[0062] Aqueous herbicide spray solutions were prepared as follows: 10 mL of 2,4-D choline concentrate solution, 10 mL of secondary herbicide concentrate, and 2.5 mL of adjuvant concentrate 1 were diluted with 477.5 mL of deionized water (Table 4). Herbicide spray solution containing 2% v / v 2,4-D choline concentrate solution (prepared by the following method: 4171.0 g flake 2,4-D acid (technical grade, 97.1 wt%) was dissolved in 4789.4 g of choline hydroxide solution (45% aqueous solution) to obtain a solution with a pH of 7.0 and a density of 1.21 g / mL), 2% v / v second herbicide concentrate and 0.5% v / v Drift control accessories. The diluted spray solution was shaken gently by hand until each sample was homogeneous. Using the same method as described in Example 1, the seven herbicide spray solutions containing the drift control adjuvant and the seven cont...

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Abstract

Aqueous herbicide concentrates containing a herbicide (such as an auxinic herbicide), a surfactant, and a fatty acid alkyl ester, a fatty acid amide, and / or a triglyceride fatty acid ester and the use of aqueous herbicide spray mixtures incorporating such concentrates are described. The aqueous herbicide concentrates described herein include from 5 to 90 weight percent of a water soluble salt of a herbicide, from 0.1 to 20 weight percent of a surfactant, and from 0.1 to 20 weight percent of a fatty acid alkyl ester, fatty acid amide, and / or a triglyceride fatty acid ester. The aqueous herbicide concentrate is a transparent, homogeneous liquid that forms a stable emulsion upon dilution into a spray solution.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of U.S. Provisional Application 61 / 614,663, filed on March 23, 2012. Background technique [0003] Agricultural spraying, achieved through economical and available technology, uses hydraulic nozzles that inherently produce a wide range of spray droplet sizes. The likelihood of these spray droplets drifting away from the initial desired site of application was found to be related to droplet size, with smaller droplets being more prone to off-target movement. Extensive research, including numerous field trials, wind tunnel testing and subsequent development of predictive mathematical models, has further enhanced the understanding of the relationship between spray droplet size and off-target drift potential. Although other factors such as meteorological conditions and spray boom height also affect drift potential, spray droplet size distribution is the most dominant factor. Teske et al....

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N25/06A01N25/30A01N57/20A01N39/04A01N43/22A01N43/40A01N43/90A01N37/40A01P13/00A01P3/00A01P7/04
CPCA01N25/04A01N57/20A01N25/00A01N25/02A01N25/30A01N39/04A01N37/40A01N43/40A01N43/54A01N2300/00A01N65/00
Inventor 邵徽H·坦克
Owner CORTEVA AGRISCIENCE LLC
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