Complexes of cloquintocet and amine-containing polymers or oligomers

• US 10,455,837 B2
• Filed: 08/25/2016
• Issued: 10/29/2019
• 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
• Primary Examiner(s): Pak, John
• Application Number:
  US15/246,604
• Publication Number:
  US 20170055530A1
• Time in Patent Office: 1,160 Days
• 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 composition comprising a safener complex and a pesticide, wherein:

the safener complex comprises cloquintocet acid, or a salt thereof, and an amine-containing polymer or oligomer;

the weight ratio of the cloquintocet acid, or salt thereof, to the amine-containing polymer or oligomer ranges from 1;

2 to 10;

1; and

the amine-containing polymer or oligomer includes a branched, spherical polyethyleneimine.

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

4. The composition of claim 1, wherein the polyethyleneimine has a molar ratio of primary amines:

secondary amines of from 1;

1.25 to 1;

0.75.

5. The composition of claim 1, wherein the polyethyleneimine has a molar ratio of primary amines:

tertiary amines of from 1;

0.90 to 1;

0.40.

6. The composition of claim 1, 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.

7. The composition 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.

8. The composition of claim 1, 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.

9. The composition of claim 1, 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.

10. The composition of claim 1, wherein the composition is an emulsifiable concentrate.

11. The composition of claim 1, wherein the composition is an aqueous spray solution or mixture.

12. 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 1.

13. The method of claim 12, wherein the undesirable vegetation is controlled in wheat, barley, triticale, rye, teff, oats, corn, sorghum, rice, sugar cane and pasture grasses, or combinations thereof.

14. The method of claim 12, wherein the undesirable vegetation is selected from the group consisting of wild oat, annual ryegrass, and combinations thereof.

15. 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, wherein the weight ratio of the cloquintocet acid, or salt thereof, to the amine-containing polymer or oligomer ranges from 1:

2 to 10;

1, and wherein the amine-containing polymer or oligomer includes a branched, spherical polyethyleneimine.