COMPLEXES OF CLOQUINTOCET AND AMINE-CONTAINING POLYMERS OR OLIGOMERS

• US 20170055530A1
• Filed: 08/25/2016
• Published: 03/02/2017
• Est. Priority Date: 08/26/2015
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Zhao, Min, Liu, Lei, Ouse, David, Gifford, James
• Granted Patent: US 10,455,837 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A01N 25/14 wettable
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 25/32 Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
• CPC Class Codes: A01N 43/42 condensed with carbocyclic rings
• CPC Class Codes: A01N 43/90 having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Abstract

Safener complexes comprising cloquintocet acid, or a salt thereof, and an amine-containing polymer or oligomer as well as compositions comprising these safener complexes are provided. Also provided are methods of controlling undesirable vegetation in a crop, comprising applying to vegetation or an area adjacent to the vegetation or applying to soil or water to prevent the emergence or growth of the undesirable vegetation in a crop, a safened herbicidal composition comprising a herbicide and a safener complex comprising cloquintocet acid, or a salt thereof, and an amine-containing polymer or oligomer.

Claims

1. A safener complex comprising cloquintocet acid, or a salt thereof, and an amine-containing polymer or oligomer.

2. The complex of claim 1, wherein the amine-containing polymer or oligomer has an average molecular weight of from 250 to 2,000,000 Daltons.

3. The complex of claim 1, wherein the amine-containing polymer or oligomer has an average molecular weight of from 500 to 10,000 Daltons.

4. The complex of claim 1, wherein the amine-containing polymer or oligomer includes a polyethyleneimine.

5. The complex of claim 4, wherein the polyethyleneimine includes a branched, spherical polyethyleneimine.

6. The complex of claim 4, wherein the polyethyleneimine has a molar ratio of primary amines:

secondary amines of from 1;

1.25 to 1;

0.75.

7. The complex of claim 4, wherein the polyethyleneimine has a molar ratio of primary amines:

tertiary amines of from 1;

0.90 to 1;

0.40.

8. The complex of claim 4, wherein the polyethyleneimine has a molar ratio of primary amines:

secondary amines;

tertiary amines of 1;

0.82;

0.53, 1;

0.91;

0.64, or 1;

0.94;

0.67.

9. The complex of claim 1, wherein the weight ratio of the cloquintocet to the amine-containing polymer or oligomer ranges from 1:

2 to 10;

1.

10. The complex of claim 1, wherein the weight ratio of the cloquintocet acid, or a salt thereof, to the amine-containing polymer or oligomer ranges from 1:

1 to 5;

1.

11. A composition comprising the safener complex of claim 1 and a pesticide.

12. The composition of claim 11, wherein the pesticide includes an acetolactate synthase (ALS) inhibitor, an acetyl CoA carboxylase (ACCase) inhibitor, a 4-hydroxyphenylpyruvatedioxygenase (HPPD) inhibitor, a 4-aminopicolinic acid based herbicide, or combinations thereof.

13. The composition of claim 11, wherein the pesticide is a herbicide that includes pyroxsulam, clodinafop-propargyl, cyhalofop, fluazifop, haloxyfop, iodosulfuron, pinoxaden, pyrasulfotole, fenoxyprop, flucarbazone, flupyrsulfuron, halauxifen, halauxifen-methyl, mesosulfuron, quizalofop, thiencarbazone, or agriculturally acceptable salts or esters thereof, or combinations thereof.

14. The composition of claim 11, wherein the composition is an emulsifiable concentrate.

15. The composition of claim 11, wherein the composition is an aqueous spray solution or mixture.

16. A method of controlling undesirable vegetation comprising applying to the vegetation or an area adjacent the vegetation, or applying to the soil to prevent the emergence of the vegetation a herbicidally effective amount of the composition of claim 11.

17. The method of claim 16, wherein the undesirable vegetation is controlled in wheat, barley, triticale, rye, teff, oats, corn, sorghum, rice, sugar cane and pasture grasses, or combinations thereof.

18. The method of claim 16, wherein the undesirable vegetation is selected from the group consisting of wild oat, annual ryegrass, and combinations thereof.

19. A method for preparing a pesticidal composition comprising combining a pesticide and a safener complex comprising cloquintocet acid, or a salt thereof, and an amine-containing polymer or oligomer.

20. A method for preparing a safener complex comprising reacting cloquintocet acid, or a salt thereof, with an amine-containing polymer or oligomer under conditions effective to form the safener complex.

21. The method of claim 20, wherein the cloquintocet acid, or a salt thereof, is contacted with the amine-containing polymer or oligomer in a glycol ether solvent.

22. The method of claim 20, wherein the cloquintocet acid, or a salt thereof, is contacted with the amine-containing polymer or oligomer at temperature of from 10°

C. to 75°

C.