Alkoxylated polyalkyleneimines as dispersants for agrochemical formulations

• US 10,231,449 B2
• Filed: 05/21/2012
• Issued: 03/19/2019
• Est. Priority Date: 05/27/2011
• Status: Active Grant

• Current Assignee: BASF SE
• Original Assignee: BASF SE
• Inventors: Schnabel, Gerhard, Klingelhoefer, Paul
• Primary Examiner(s): Richter, Johann R
• Assistant Examiner(s): Sullivan, Danielle
• Application Number:
  US14/122,483
• Publication Number:
  US 20140106965A1
• Time in Patent Office: 2,493 Days
• CPC Class Codes: A01C 1/06 Coating or dressing seed
• 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 25/04 Dispersions, emulsions, suspoemulsions, suspension concentrates or gels foams A01N25/16
• 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 43/56 1,2-Diazoles; Hydrogenated 1,2-diazoles
• CPC Class Codes: A01N 47/24 containing the groups , or; Thio analogues thereof
• CPC Class Codes: A01N 57/20 containing acyclic or cycloaliphatic radicals

Abstract

The present invention relates to a composition comprising a water-insoluble pesticide and an alkoxylated polyalkyleneimine. The invention furthermore relates to a method of preparing this composition; to the use of this composition for dispersing agrochemical active substances; to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the composition is allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment; and furthermore to seed comprising the composition.

Claims

1. An aqueous composition comprising:

a water-insoluble pesticide;

a water soluble agrochemical active substance; and

a nonionic or anionic alkoxylated polyalkyleneimine;

wherein the water-insoluble pesticide is present in the form of suspended particles and is soluble in water to no more than 1 g/l at 20°

C.;

wherein the water soluble agrochemical active substance comprises from 5% to 85% by weight of the composition, is soluble in water to no more than 10 g/l at 20°

C. and is a water-soluble pesticide or a water-soluble inorganic fertilizer,

wherein the alkoxylated polyalkyleneimine comprises from 0.1% to 25% by weight of the composition, and,

wherein the water-insoluble pesticide comprises from 1% to 50% by weight of the composition.

2. The composition according to claim 1, wherein the alkoxylated polyalkyleneimine has a molar mass Mw of from 800 to 25 000 g/mol.

3. The composition according to claim 1, wherein the alkoxylated polyalkyleneimine is an ethoxylated and/or propoxylated polyalkyleneimine.

4. The composition according to claim 1, wherein the alkoxylated polyalkyleneimine is an ethoxylated and propoxylated polyalkyleneimine comprising 1 to 50 mol of propylene oxide units and 1 to 50 mol of ethylene oxide units, in each case per mol of NH units.

5. The composition according to claim 1, wherein the alkoxylated polyalkylimine is an ethoxylated and propoxylated polyalkyleneimine comprising 1.5 to 15 mol of propylene oxide units and 10 to 50 mol of ethylene oxide units, in each case per mol of NH units.

6. The composition according to claim 1, wherein the alkoxylated polyalkyleneimine is present in dissolved form.

7. The composition according to claim 1, comprising from 0.5 to 15% by weight of the alkoxylated polyalkyleneimine.

8. Seed treated with the composition according to claim 1.

9. A method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the composition according to claim 1 is allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment.

10. The method of claim 9, wherein the alkoxylated polyalkyleneimine has a molar mass Mw of from 800 to 25 000 g/mol.

11. The method of claim 9, wherein the alkoxylated polyalkyleneimine is an ethoxylated and/or propoxylated polyalkyleneimine.

12. The method of claim 9, wherein the alkoxylated polyalkyleneimine is an ethoxylated and propoxylated polyalkyleneimine comprising 1 to 50 mol of propylene oxide units and 1 to 50 mol of ethylene oxide units, in each case per mol of NH units.