Microemulsion having wide application range

Patent metadata

Field	Value
Publication number	US-9901093-B2
Application number	US-99036109-A
Country	US
Kind code	B2
Filing date	Apr 30, 2009
Priority date	May 2, 2008
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

The present invention relates to a microemulsion comprising
(A) 0.1 to 50% by weight of at least one active ingredient, (B) 0.5 to 40% by weight of at least one solvent which is fully miscible with water, (C) 10 to 40% by weight of at least one nonionic surfactant, (D) 0 to 10% by weight of further additives, (E) 10 to 90% by weight of water and (F) 0.1 to 60% by weight of at least one solvent which is partially miscible with water,

in each case based on the total microemulsion, where the total of the amounts of components A, B, C, D, E and F is 100% by weight and where the microemulsion does not comprise any anionic surfactants, and to a process for the preparation of this microemulsion and to the use of this microemulsion for the treatment of plants.

First claim

We claim:

1. A micro emulsion comprising:
(a) 0.1 to 50% by weight of at least one active ingredient selected from the group consisting of fungicides, insecticides, nematicides, herbicides, growth regulators and combinations thereof as component A;
(b) 0.5 to 40% by weight of at least one solvent which is fully miscible with water wherein said solvent is selected from the group consisting of 1-methoxy-2-propanol acetate, methyl-proxitol-acetate, propylene-glycol-mono-methyl ether acetate, n-propyl lactate, esters of benzoic acid, esters of dicarboxylic acids, cyclic esters, cyclic amides, carbonates, and mixtures thereof, as component B; or
0.5 to 40% by weight of sulphur containing solvents in mixture with at least one additional solvent selected from the group consisting of 1-methoxy-2-propanol acetate, methyl-proxitol-acetate, propylene-glycol-mono-methyl ether acetate, n-propyl lactate, esters of benzoic acid, of dicarboxylic acids, cyclic esters, cyclic amides, and carbonates as component B;
(c) 10 to 40% by weight of at least one nonionic surfactant as component C;
(d) 0 to 10% by weight of further additives as component D;
(e) 10 to 90% by weight of water as component E;

and
(f) 0.1 to 60% by weight of at least one di-C 1 -C 4 -alkylamide of fatty acids comprising 6 to 16 carbon atoms as component F,
wherein each case is based on the total microemulsion, where the total of the amounts of components A, B, C, D, E and F is 100% by weight and where the microemulsion has an anionic surfactant content of ≦1% by weight, based on the total amount of the micro emulsion.

2. The micro emulsion of claim 1 , wherein the at least one nonionic surfactant present in the micro emulsion is selected from the group consisting of compounds which are formed by alkoxylating compounds with at least one active hydrogen atom, alkoxylates of alkylphenols, block polymers of C 2 -C 6 -alkylerie oxides, alkylglycosides and combinations thereof.

3. The micro emulsion of claim 1 , consisting of the components A, B, C, E and F.

4. A process for the preparation of the micro emulsion of claim 1 , comprising mixing components A, B, C, optionally D, E and F.

5. The process of claim 4 , wherein said mixing is carried out at room temperature.

6. A method of controlling pests comprising contacting the pests or their food supply, habitat, breeding grounds or their locus with a pesticidally effective amount of the micro emulsion of claim 1 wherein a plant, a tree, soil or a seed is protected.

7. The method of claim 6 , wherein said pests are insects, nematodes, or fungi.

8. The method of claim 6 , wherein the microemulsion is present as a dilute aqueous solution.

9. A method of controlling weeds comprising contacting said weeds or their locus with a herbicidally effective amount of the microemulsion of claim 1 .

10. The method of claim 9 , wherein the microemulsion is present as a dilute aqueous solution.

11. The microemulsion of claim 1 , wherein component B is 0.5 to 40% by weight of sulphur containing solvents in mixture with at least one additional solvent selected from the group consisting of 1-methoxy-2-propanol acetate, methyl-proxitol-acetate, propylene-glycol-mono-methyl ether acetate, gamma-butyrolactone, and n-propyl lactate.

12. A micro emulsion comprising:
(a) 0.1 to 50% by weight of at least one active ingredient selected from the group consisting of fungicides, insecticides, nematicides, herbicides, growth regulators and combinations thereof as component A;
(b) 0.5 to 40% by weight of at least one solvent which is fully miscible with water wherein said solvent is selected from the group consisting of sulphur containing solvents as component B;
(c) 10 to 40% by weight of at least one nonionic surfactant as component C;
(d) 0 to 10% by weight of further additives as component D;
(e) 10 to 90% by weight of water as component E; and
(f) 0.1 to 60% by weight of at least one solvent, which is partially miscible with water selected from the group consisting of di-C 1 -C 4 -alkylamide of fatty acids comprising 6 to 16 carbon atoms and at least one additional solvent selected from the group consisting of 2-heptanone, 3-heptanone, 4-heptanone, acetophenone, cyclohexanone, and tri-C 1 -C 6 alkyl phosphates and mixtures thereof as component F;

and
wherein each case is based on the total microemulsion, where the total of the amounts of components A, B, C, D, E and F is 100% by weight and where the microemulsion has an anionic surfactant content of ≦1% by weight, based on the total amount of the micro emulsion.

13. The micro emulsion of claim 12 , wherein the at least one nonionic surfactant present in the micro emulsion is selected from the group consisting of compounds which are formed by alkoxylating compounds with at least one active hydrogen atom, alkoxylates of alkylphenols, block polymers of C 2 -C 6 -alkylerie oxides, alkylglycosides and combinations thereof.

14. The micro emulsion of claim 13 , consisting of the components A, B, C, E and F.

15. The micro emulsion of claim 1 , wherein component D is selected from the group consisting of: humectants, dispersants, non-anionic surface-active substances, inorganic salts, oligo- or polyphosphates, carbonates, fertilizers, phosphorus- and potassium-compounds, trace elements, antifoams, binders, polyamino acids, polyvinyl alcohols, polyvinylpyrrolidone, polyacrylic acid derivatives, polymers, colorants, stabilizers, biocides, vegetable oils, high-boiling hydrocarbons, and preservatives.

Assignees

• Taranta Claude
• Meier Wolfgang
• Bork Thomas
• Strauss Karl
• Levy Tatjana
• Montag Jurith
• Basf Se

Inventors

• Taranta Claude
• Meier Wolfgang
• Bork Thomas
• Strauss Karl
• Levy Tatjana
• Montag Jurith

Classifications

• A01N47/02

  the carbon atom having no bond to a nitrogen atom · CPC title

• A01N2300/00

  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 title

• A01N25/04 Primary

  Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16) · CPC title

• A01N43/653

  1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles · CPC title