IP Library Granted Patent US 9,204,643
Granted Patent B2
US 9,204,643 · App. 14/134,592 · Granted Dec 8, 2015

Temperature stable cloquintocet-mexyl aqueous compositions

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Quick Facts
Patent No.
US 9,204,643
App. No.
14/134,592
Granted
Dec 8, 2015
Kind
B2
Abstract

Temperature stable aqueous compositions and methods for their preparation and use are described. The compositions can include cloquintocet-mexyl, a surfactant comprising a tallowamine alkoxylate, a cocoamine alkoxylate, or a combination thereof, and water.

Claims (28)

1. A method of reducing crystal growth of an aqueous suspension of hydrated cloquintocet-mexyl, comprising:

contacting an aqueous suspension of hydrated cloquintocet-mexyl with a surfactant selected from the group consisting of a tallowamine alkoxylate, a cocoamine alkoxylate, and mixtures thereof.

2. The method of claim 1 , wherein the stabilized composition is stable at a temperature of 30° C. or greater.

3. The method of claim 2 , wherein the stabilized composition is stable at a temperature from 30° C. to 45° C.

4. The method of claim 1 , wherein the surfactant is ethoxylated.

5. The method of claim 4 , wherein the surfactant comprises an average of from 10 to 20 moles of ethylene oxide.

6. The method of claim 1 , wherein the stabilized composition further comprises a pesticide, and wherein the pesticide is selected from the group consisting of clodinafop-propargyl, flupyrsulfuron, pyroxsulam, and 4-aminopicolinic acid based herbicides.

7. The method of claim 1 , wherein the stabilized composition comprises from 150 g/L to 225 g/L of hydrated cloquintocet-mexyl.

8. The method of claim 7 , wherein the weight ratio of hydrated cloquintocet-mexyl to the pesticide is from 1:1 to 9:1.

9. A method of making a stabilized aqueous composition of hydrated cloquintocet-mexyl, comprising:

mixing anhydrous cloquintocet-mexyl with an aqueous composition comprising water and a wetting surfactant to form an aqueous cloquintocet-mexyl composition;

converting at least 95% of the anhydrous cloquintocet-mexyl to hydrated cloquintocet-mexyl;

mixing a stabilizing surfactant comprising a tallowamine alkoxylate, a cocoamine alkoxylate, or a combination thereof with the aqueous hydrated cloquintocet-mexyl composition; and

milling the resultant product; wherein the stabilizing surfactant reduces the crystal growth of the hydrated cloquintocet-mexyl resulting a stabilized composition.

10. The method of claim 9 , wherein the stabilizing surfactant is ethoxylated.

11. The method of claim 10 , wherein the stabilizing surfactant comprises an average of from 10 to 20 moles of ethylene oxide.

12. The method of claim 9 , wherein a pesticide is combined with the resultant product, and wherein the pesticide is selected from the group consisting of clodinafop-propargyl, flupyrsulfuron, pyroxsulam, and 4-aminopicolinic acid based herbicides.

13. The method of claim 12 , wherein the weight ratio of hydrated cloquintocet-mexyl to the pesticide is from 1:1 to 9:1.

14. The method of claim 9 , wherein the stabilized composition comprises from 150 g/L to 225 g/L of hydrated cloquintocet-mexyl.

15. A temperature stable aqueous composition comprising:

hydrated cloquintocet-mexyl;

a surfactant comprising a tallowamine alkoxylate, a cocoamine alkoxylate, or a combination thereof; and

water; wherein the stabilizing surfactant reduces the crystal growth of the hydrated cloquintocet-mexyl resulting a stabilized composition.

16. The composition of claim 15 , wherein the surfactant is ethoxylated.

17. The composition of claim 16 , wherein the surfactant comprises an average of from 10 to 20 moles of ethylene oxide.

18. The composition of claim 15 , further comprising a pesticide, wherein the pesticide is selected from the group consisting of clodinafop-propargyl, flupyrsulfuron, pyroxsulam, and 4-aminopicolinic acid based herbicides.

19. The composition of claim 18 , wherein the weight ratio of hydrated cloquintocet-mexyl to the pesticide is from 1:1 to 9:1.

20. The composition of claim 15 , wherein the composition comprises from 150 g/L to 225 g/L of hydrated cloquintocet-mexyl.

Assignments (2)
CHANGE OF NAME Recorded Nov 8, 2021
From: DOW AGROSCIENCES LLC
To: CORTEVA AGRISCIENCE LLC
Reel/Frame 058044/0184 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2015
From: HOPKINS, DEREK J.
To: DOW AGROSCIENCES LLC
Reel/Frame 035128/0787 →