Solid agroformulations prepared from a melt of pesticide and polyalkoxylate, optionally containing liquid adjuvant complexed with polycarboxylate

Patent metadata

Field	Value
Publication number	US-9968083-B2
Application number	US-201214365421-A
Country	US
Kind code	B2
Filing date	Nov 29, 2012
Priority date	Dec 15, 2011
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

The present invention relates to a method for a preparation of a solid composition comprising the steps of a) dissolving a premix in a premix-solvent, or melting a premix, wherein the premix contains a pesticide and a nonionic, amphiphilic polyalkoxylate, b) solidifying the premix by removing the premix-solvent, or by cooling, and c) contacting the premix with at least one auxiliary. The invention further relates to a solid composition obtainable by said method; to a method for the preparation of an aqueous tank mix, in which a pesticide is present as suspended particles having a particle size below 1.0 μm, comprising the step of mixing water and a solid composition obtainable by the said method; and to a method for controlling phytopathogenic fungi and/or undesired plant growth and/or undesired attack by insects or mites and/or for regulating the growth of plants, where a solid composition obtainable by said method is allowed to act on the particular pests, their habitat or the plants to be protected from the particular pest, the soil and/or on undesired plants and/or the useful plants and/or their habitat.

First claim

The invention claimed is:

1. A method for the preparation of a solid composition comprising the steps of
a) dissolving a premix in a premix-solvent or melting a premix, wherein the premix contains a pesticide and a nonionic amphiphilic polyalkoxylate, and wherein the molten premix contains the pesticide and the polyalkoxylate in liquid form, and wherein the premix contains up to 20 wt % of other compounds beside the pesticide and the polyalkoxylate;
b) solidifying the premix by removing the premix-solvent or by cooling,
c) breaking or milling the solidified premix,
d) contacting the premix with at least one auxiliary, and
e) extruding or milling the premix with the added auxilary,
wherein the solid composition comprises 1 to 60 wt % of the polyalkoxylate,
wherein the polyalkoxylate is a block polymer comprising a polyethoxylate block and a poly-C 3 -C 5 -alkoxylate block,
wherein the pesticide is insoluble in water.

2. The method according to claim 1 , wherein step a) is melting the premix, and step b) is solidifying the premix by cooling.

3. The method according to claim 1 , wherein the solid premix prepared in step b) is subjected to breaking or milling resulting in a particulate premix.

4. The method according to claim 1 , wherein the solid composition comprises 5 to 60 wt % of an anionic surfactant.

5. The method according to claim 1 , wherein the solid composition comprises a solid adjuvant obtainable by dissolving a polycarboxylate and a liquid adjuvant in water, and removing the water.

6. The method according to claim 1 , wherein the solid composition comprises 5 to 40 wt % of the polyalkoxylate.

7. The method according to claim 1 , wherein the solid composition comprises 10 to 40 wt % of an anionic surfactant.

8. The method according to claim 1 , wherein the solid composition comprises 7 to 65 wt % of a water-soluble, solid carrier.

9. The method according to claim 1 , wherein the polyalkoxylate is a triblock polymer of A-B-A type comprising a polyethoxylate type A block and a poly-C 3 -C 5 -alkoxylate block type B block.

10. The method of claim 1 , wherein the solid composition further comprises a polycarboxylate.

11. The method of claim 8 , wherein the solid carrier further comprises a mono- or di-saccharide, polysaccharide or mixtures thereof.

12. The method according to claim 11 , wherein the polycarboxylate is a copolymer of at least one ethylenically unsaturated carboxylic acid and/or anhydride, and of at least one ethylenically unsaturated nonionic monomer.

Assignees

• Taranta Claude
• Bork Thomas
• Schreieck Jochen
• Mueller Helmut
• Riediger Nadine
• Klein Clark D
• Willis Rebecca
• Sikuljak Tatjana
• Mertoglu Murat
• Basf Se

Inventors

• Taranta Claude
• Bork Thomas
• Schreieck Jochen
• MüLLER HELMUT
• Riediger Nadine
• Klein Clark D
• Willis Rebecca
• Sikuljak Tatjana
• Mertoglu Murat

Classifications

• A01N25/24 Primary

  containing ingredients to enhance the sticking of the active ingredients · CPC title

• A01N25/32

  Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions · CPC title

• A01N25/10 Primary

  Macromolecular compounds · CPC title

• A01N43/56

  1,2-Diazoles; Hydrogenated 1,2-diazoles · CPC title

• A01N47/24

  containing the groups [IMAGE cpc-sch-A01N-0944.gif], [IMAGE cpc-sch-A01N-0945.gif] or[IMAGE cpc-sch-A01N-0946.gif]; Thio analogues thereof · CPC title