METHODS FOR GENERATING HIGH ASPECT-RATIO POLYMERIC PARTICLES COMPRISING AN ACTIVE INGREDIENT

• US 20120329648A1
• Filed: 11/12/2010
• Published: 12/27/2012
• Est. Priority Date: 11/13/2009
• Status: Active Grant

• Current Assignee: Syngenta Crop Protection LLC (China National Chemical Corporation)
• Original Assignee: Syngenta Crop Protection LLC (China National Chemical Corporation)
• Inventors: Fowler, Jeffrey, Kim, Sejong
• Granted Patent: US 10,004,223 B2
• Time in Patent Office: Days
• US Class Current: 504/100
• 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 25/00 Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application , e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
• CPC Class Codes: A01N 25/10 Macromolecular compounds
• CPC Class Codes: A01N 25/24 containing ingredients to enhance the sticking of the active ingredients
• CPC Class Codes: A01N 43/36 five-membered rings
• CPC Class Codes: A01N 43/54 1,3-Diazines; Hydrogenated 1,3-diazines
• CPC Class Codes: A01N 43/82 five-membered rings with three ring hetero atoms
• CPC Class Codes: A01N 51/00 Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring

Abstract

The present invention relates to methods for generating polymeric particles which comprise one or more active ingredients. The invention also relates to the use of such polymeric particles as a seed treatment. The present technology provides an improved seed treatment suitable for applying plant propagation materials. The seed treatment of the present technology includes the use of high aspect-ratio particles as a seed treatment. The present technology has been found to have advantageous properties associated with the seed treatment including increased adherence of the formulation to the seed and reduced tendency to dust off.

Claims

1. A method comprising:

applying high-aspect ratio polymeric particles to a plant seed.

2. The method of claim 1 wherein the polymeric particles comprise a pesticidally active ingredient.

3. The method of claim 2 wherein the pesticidally active ingredient is an insecticide.

4. The method of claim 2 wherein the pesticidally active ingredient is a fungicide.

5. The method of claim 2 wherein the pesticidally activate ingredient is a herbicide.

6. A plant seed having a high-aspect polymeric particle applied to said plant seed.

7. A seed treatment composition comprising:

a high aspect ratio polymeric particle; and

a pesticidally active ingredient.

8. A method comprising:

dissolving or dispersing an active ingredient in a first solvent to form a first solution, wherein said first solvent comprises a dissolved molecule selected from a polymer, polymersable monomers, or combination thereof;

combining a second solvent with said first solution to produce a suspension, wherein said active ingredient and molecule are substantially insoluble in said second solvent;

precipitating said molecule into polymeric particles, wherein said polymeric particles comprise said active ingredient; and

applying said polymeric particles to a plant seed.

9. (canceled)