Lactofen and dicamba diglycol amine liquid formulations

• US 9,468,206 B2
• Filed: 12/30/2015
• Issued: 10/18/2016
• Est. Priority Date: 12/31/2014
• Status: Active Grant

• Current Assignee: Valent USA Corporation (Sumitomo Chemical Company Limited)
• Original Assignee: Valent USA Corporation (Sumitomo Chemical Company Limited)
• Inventors: Ramachandran, Bhaskar M., Cheung, Tak Wai
• Primary Examiner(s): PAK, JOHN D
• Application Number:
  US14/983,793
• Publication Number:
  US 20160183518A1
• Time in Patent Office: 293 Days
• US Class Current: 1/1
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/02 containing liquids as carriers, diluents or solvents
• CPC Class Codes: A01N 25/22 containing ingredients stabilising the active ingredients
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/10 Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/40 having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
• CPC Class Codes: A01N 37/48 Nitro-carboxylic acids; Derivatives thereof

Abstract

The present invention relates to liquid agricultural formulations comprising from about 15 to about 40% w/w dicamba diglycol amine, from about 1 to about 15% w/w lactofen, from about 5 to about 40% w/w of a solvent selected from the group consisting of: (1) a solvent comprising dimethyl glutarate, dimethyl succinate, and dimethyl adipate; and (2) a solvent comprising a mixture of aromatic hydrocarbons obtained from distillation of aromatic streams derived from crude oil, from about 0.5 to about 5% w/w of a thickener with the chemical formula (Mg,Al)₅Si₈O₂₀×4H₂O, and from about 2 to about 15% w/w of a polyarylphenyl ether sulphate, ammonium salt surfactant, and methods of use thereof.

Claims

1. A liquid agricultural formulation comprising:

from about 15 to about 40% w/w dicamba diglycol amine;

from about 1 to about 15% w/w lactofen;

from about 5 to about 40% w/w of a solvent selected from the group consisting of;

(1) a solvent comprising dimethyl glutarate, dimethyl succinate, and dimethyl adipate; and

(2) a solvent comprising a mixture of aromatic hydrocarbons obtained from distillation of aromatic streams derived from crude oil;

from about 0.5 to about 5% w/w of a thickener with the chemical formula (Mg,Al)₅Si₈O₂₀×

4H₂O; and

from about 2 to about 15% w/w of a polyarylphenyl ether sulphate, ammonium salt surfactant.

2. The formulation of claim 1 comprising from about 15 to about 35% w/w dicamba diglycol amine.

3. The formulation of claim 1 comprising from about 2 to about 10% w/w lactofen.

4. The formulation of claim 1 comprising from about 5 to about 20% w/w of the solvent.

5. The formulation of claim 4 wherein the solvent comprises a mixture of aromatic hydrocarbons obtained from distillation of aromatic streams derived from crude oil.

6. The formulation of claim 1 comprising from about 1 to about 4% w/w of the thickener with the chemical formula (Mg,Al)₅Si₈O₂₀×

4H₂O.

7. The formulation of claim 1 comprising from about 4 to about 12% w/w of the polyarylphenyl ether sulphate, ammonium salt surfactant.

8. The formulation of claim 1 further comprising a bis(2-hydroxyethyl)cocoalkylamine surfactant, an ethoxylated alkyl alcohol phosphate ester and 5% phosphoric acid surfactant, or combinations thereof.

9. The formulation of claim 8 comprising from about 0.1 to about 3.0% w/w of the bis(2-hydroxyethyl)cocoalkylamine surfactant, tridecanol 6EO phosphate ester and 5% phosphoric acid surfactant, or combinations thereof.

10. The formulation of claim 1 further comprising a 1,2-benzisothiazolin-3-one based preservative.

11. The formulation of claim 10 comprising from about 0.01 to about 1% w/w of the 1,2-benzisothiazolin-3-one based preservative.

12. The formulation of claim 1 further comprising a silicone antifoam agent.

13. The formulation of claim 12 comprising from about 0.01 to about 1% w/w of the silicone antifoam agent.

14. The formulation of claim 1 wherein the weight ratio of dicamba diglycol amine to lactofen is from about 1:

0.001 to about 1;

1.

15. The formulation of claim 14 wherein the weight ratio of dicamba diglycol amine to lactofen is from about 1:

0.01 to about 1;

0.05.

19. A method for protecting plants comprising

diluting the formulation of claim 1 with water, and

applying the diluted formulation to a place where a plant is growing or intended to grow.

20. The method of claim 19 comprising

diluting the formulation of claim 1 in a tank mixer,

adding other active ingredients to the tank mixer, and

applying the tank mixture to the place where a plant is growing or intended to grow.

16. A liquid agricultural formulation comprising:

from about 19 to about 29% w/w dicamba diglycol amine;

from about 5 to about 10% w/w lactofen;

from about 5 to about 15% w/w of a solvent containing dimethyl glutarate, dimethyl succinate, and dimethyl adipate;

from about 2 to about 3% w/w of a thickener with the chemical formula (Mg,Al)₅Si₈O₂₀×

4H₂O; and

from about 6 to about 10% w/w of a polyarylphenyl ether sulphate, ammonium salt surfactant.

17. The formulation of claim 16 further comprising a preservative, an antifoam agent, and an additional surfactant.

18. The formulation of claim 17 comprising from about 0.05 to about 0.15% w/w of the preservative, from about 0.05 to about 0.15% w/w of the antifoam agent, and from about 0.8 to about 1.2% w/w of the additional surfactant.