HYDROPHOBICALLY MODIFIED POLYSACCHARIDE ETHERS AS DEPOSITION ENHANCERS FOR AGRICULTURAL ACTIVE INGREDIENTS

• US 20130274110A1
• Filed: 12/13/2011
• Published: 10/17/2013
• Est. Priority Date: 12/16/2010
• Status: Active Grant

• Current Assignee: Akzo Nobel Chemicals International B.V. (Nouryon BV)
• Original Assignee: Akzo Nobel Chemicals International B.V. (Nouryon BV)
• Inventors: Westbye, Peter, Karlson, Leif Olof
• Granted Patent: US 9,339,031 B2
• Time in Patent Office: Days
• US Class Current: 504/358
• CPC Class Codes: A01N 25/24 containing ingredients to enhance the sticking of the active ingredients
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 39/04 Aryloxy-acetic acids; Derivatives thereof
• CPC Class Codes: A01N 43/653 1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles

Abstract

A composition is provided, comprising a non-ionic, water-soluble, hydrophobically modified lower alkyl hydroxyalkyl linear polysaccharide ether, wherein the hydrophobic group comprises a long-chain C10-C18 alkyl or alkenyl group, the lower alkyl group has 1-4 carbon atoms, and the hydroxyalkyl groups are hydroxyethyl and/or hydroxypropyl; and one or more agriculturally active ingredient. A method for treating a plant is also provided, comprising the step of contacting a plant with a composition of the invention.

Claims

1. A composition comprising

from 0.005 to 0.4% (w/w) of a non-ionic, water-soluble, hydrophobically modified lower alkyl hydroxyalkyl linear polysaccharide ether, wherein the hydrophobic group comprises a long-chain C10-C18 alkyl or alkenyl group, the lower alkyl group has 1-4 carbon atoms, and the hydroxyalkyl groups are hydroxyethyl and/or hydroxypropyl;

and

from 0.005 to 0.5% (w/w) of one or more agriculturally active ingredient.

2. A composition according to claim 1, wherein said agriculturally active ingredient is selected from the group consisting of pesticides and plant growth regulators.

3. A composition according to claim 1, comprising at least one pesticide selected from the group consisting of fungicides, herbicides, insecticides, miticides, nematicides, acaricides, and molluscicides.

4. A composition according to claim 1, comprising at least one pesticide selected from the group consisting of triazoles, strobilurins, benzimidazoles, phenoxy carboxylic acids, benzoic acids, sulfonylureas, pyridine carboxylic acids, neonicotinides, amidines, and pyrethroids, and salts and esters of the acid compounds.

5. A composition according to claim 1, comprising at least one plant growth regulator selected from the group consisting of abscisic acids, auxins, cytokinins and gibberellins.

6. A composition according to claim 1, wherein the linear polysaccharide ether is a cellulose ether having a MS_hydrophobe of 0.001-0.02.

7. A composition according to claim 1 wherein said hydrophobic group comprises a long-chain C12-C14 allyl or alkenyl group.

8. A composition according to claim 1, wherein the linear polysaccharide ether has a DS_alkyl of 0.1-2.5 for the lower alkyl group.

9. A composition according to claim 1, wherein the linear polysaccharide ether has a MS_hydroxyalkyl of 0.2-4.0.

10. A composition according to claim 1, wherein the linear polysaccharide ether is a cellulose ether having a MS_hydroxyethyl of 0.2-4.0.

11. A composition according claim 1, wherein the linear polysaccharide ether is a cellulose ether having a a MS_{hydroxypropyl} of 0.1-2.0.

12. A composition according to claim 1 wherein the substituents of the linear saccharide have the general formula

13. A composition according to claim 12, wherein R¹ is an alkyl group with 12-14 carbon atoms.

14-16. -16. (canceled)

17. A method for the treatment of a plant comprising the step of contacting the plant with an aqueous composition comprising

a non-ionic, water-soluble, hydrophobically modified lower alkyl hydroxyalkyl linear polysaccharide ether, wherein the hydrophobic group comprises a long-chain C10-C18 alkyl or alkenyl group, the lower alkyl group has 1-4 carbon atoms, and the hydroxyalkyl groups are hydroxyethyl and/or hydroxypropyl;

and

one or more agriculturally active ingredient.

18. A method according to claim 17 where the composition is sprayed onto the leaves of the plant.

20. A method according to claim 17, wherein the aqueous composition comprises from 0.005 to 0.4% (w/w) of the polysaccharide ether and from 0.005% to 0.5% (w/w) of the agriculturally active ingredient.

19. A method for improving the deposition on a plant of an aqueous composition comprising from 0.005 to 0.5% (w/w) of at least one agriculturally active ingredient, said method comprising the step of adding to said composition from 0.005 to 0.4% (w/w) of a non-ionic, water-soluble, hydrophobically modified lower alkyl hydroxyalkyl linear polysaccharide ether, wherein the hydrophobic group comprises a long-chain C10-C18 alkyl or alkenyl group, the lower alkyl group has 1-4 carbon atoms, and the hydroxyalkyl groups are hydroxyethyl and/or hydroxypropyl.