Turfgrass fungicide formulation with pigment

Patent metadata

Field	Value
Publication number	US-9826738-B2
Application number	US-201615272147-A
Country	US
Kind code	B2
Filing date	Sep 21, 2016
Priority date	Jun 26, 2008
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

Oil-in-water fungicidal formulations are prepared having pigment dispersed therein, the pigment being stable within the oil-in-water emulsion as a result of the addition of suitable silicone surfactants and suitable emulsifiers. The formulations can be prepared either as a 2-pack formulation or as a single formulation. In the case of the single formulation polyethylene glycol is also added. In either case, the formulations show a synergistic effect through the addition of the pigment, the resulting formulations having an increased efficacy. Further, the formulations show a synergistic effect when mixed with conventional chemical fungicides, both being added in reduced amounts compared to recommended rates.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A method for improving turfgrass health, the method comprising applying to the turfgrass an effective amount of a formulation comprising:
a paraffinic oil;
one or more emulsifiers, each of which is independently selected from the group consisting of natural and synthetic alcohol ethoxylates, alcohol alkoxylates, glycerol oleate, and nonyl phenol ethoxylates;
a pigment;
a silicone surfactant; and
water,
wherein the silicone surfactant represents from about 0.1 wt % to about 5 wt % of the total weight of the paraffinic oil, the one or more emulsifiers, the pigment, and the silicone surfactant;
wherein the one or more emulsifiers represent from about 0.5 wt % to about 5 wt % of the total weight of the paraffinic oil, the one or more emulsifiers, the pigment, and the silicone surfactant;
wherein the pigment represents from about 1 wt % to about 10 wt % of the total weight of the paraffinic oil, the one or more emulsifiers, the pigment, and the silicone surfactant; and

wherein the formulation is an oil-in-water emulsion and the one or more emulsifiers and the silicone surfactant are selected such that the pigment is maintained in dispersion in the oil-in-water emulsion for delivery to the turfgrass.

2. The method of claim 1 , wherein the pigment comprises a phthalocyanine.

3. The method of claim 2 , wherein the pigment comprises a polychlorinated (Cu II) phthalocyanine.

4. The method of claim 1 , wherein the paraffinic oil comprises an isoparaffinic oil.

5. The method of claim 4 , wherein the isoparaffinic oil is a synthetic isoparaffinic oil.

6. The method of claim 1 , wherein the isoparaffinic oil has an independently selected carbon number distribution of from C16 to C35.

7. The method of claim 1 , wherein each of the one or more emulsifiers is independently selected from the group consisting of polyoxyethylene (4 to 7) lauryl ether (C 12 ); polyoxyethylene (10) cetyl ether (C 16 ), polyoxyethylene (2 to 11) C 12 -C 15 alcohols, polyoxyethylene (3 to 9) C 11 -C 14 alcohols, and polyoxyethylene (9) C 12 -C 14 alcohols.

8. The method of claim 1 , wherein each of the one or more emulsifiers is independently selected from the group consisting of natural or synthetic alcohol ethoxylate, glycerol oleate, and nonyl phenol ethoxylates.

9. The method of claim 8 , wherein each of the one or more emulsifiers is independently selected from the group consisting of polyoxyethylene (4 to 12) lauryl ether (C12); polyoxyethylene (10) cetyl ether (C16); polyoxyethylene (10) stearyl ether (C18); polyoxyethylene (10) oleyl ether (C18 monounsaturated); polyoxyethylene (2 to 11) C12-C15 alcohols; polyoxyethylene (3 to 9) C11-C14 alcohols; polyoxyethylene (9) C12-C14 alcohols; polyoxyethylene (11) C16-C18 alcohols; polyoxyethylene (20) C12-C15 alcohols, glycerol oleate, and polyoxyethylene (2 to 8) nonylphenol.

10. The method of claim 1 , wherein each of the one or more emulsifiers is independently selected from a natural or synthetic alcohol ethoxylate and a glycerol oleate.

11. The method of claim 10 , wherein each of the one or more emulsifiers is independently selected from the group consisting of polyoxyethylene (4 to 12) lauryl ether (C12); polyoxyethylene (10) cetyl ether (C16); polyoxyethylene (10) stearyl ether (C18); polyoxyethylene (10) oleyl ether (C18 monounsaturated); polyoxyethylene (2 to 11) C12-C15 alcohols; polyoxyethylene (3 to 9) C11-C14 alcohols; polyoxyethylene (9) C12-C14 alcohols; polyoxyethylene (11) C16-C18 alcohols; polyoxyethylene (20) C12-C15 alcohols, and glycerol oleate.

12. The method of claim 1 , wherein the one or more emulsifiers represent from about 1 wt % to about 3 wt % of the total weight of the paraffinic oil, one or more emulsifiers, pigment, and silicone surfactant.

13. The method of claim 1 , wherein the one or more emulsifiers represent about 2 wt % of the total weight of the paraffinic oil, one or more emulsifiers, pigment, and silicone surfactant.

14. The method of claim 1 , wherein the silicone surfactant comprises polyethylene glycols (PEG) according to Formula (IV):
R 1 —O—(CH 2 —CH 2 —O) n —R 2   Formula (IV)

where: R 1 ═H or CH 2 ═CH—CH 2 or COCH 3
R 2 ═H or CH 2 ═CH—CH 2 or COCH 3
n is greater than or equal to 1.

15. The method of claim 1 , wherein:
the silicone surfactant is selected from the group consisting of trisiloxanes and silicone polyethers of Formula I

where R═H, CH 3 , or COCH 3 ; x=1 to 24; n=0 or 1; and m=1.

16. The method of claim 1 , wherein
the one or more emulsifiers are selected from the group consisting of polyoxyethylene (4 to 7) lauryl ether (C 12 ); polyoxyethylene (10) cetyl ether (C 16 ), polyoxyethylene (2 to 11) C 12 -C 15 alcohols, polyoxyethylene (3 to 9) C 11 -C 14 alcohols, and polyoxyethylene (9) C 12 -C 14 alcohols, and
the silicone surfactant comprises polyethylene glycols (PEG) according to Formula (IV):
R 1 —O—(CH 2 —CH 2 —O) n —R 2   Formula (IV)

where: R 1 ═H or CH 2 ═CH—CH 2 or COCH 3
R 2 ═H or CH 2 ═CH—CH 2 or COCH 3
n is greater than or equal to 1.

17. The method of claim 16 , wherein the pigment comprises a polychlorinated (Cu II) phthalocyanine.

18. The method of claim 1 , wherein the formulation further comprises one or more chemical fungicides.

19. The method of claim 18 , wherein each of the one or more chemical fungicides is independently selected from the group consisting of a demethylation inhibitor, a methyl benzimidazole carbamate, and a dicarboximide.

20. The method of claim 1 , wherein the non-aqueous portion of the oil-in-water emulsion is applied to the turfgrass in a range of about 1 gal/acre (0.093 L/100 m 2 ) to about 15 gal/acre (1.395 L/100 m 2 ), a total spray volume of the oil-in-water emulsion being in a range of about 20 gal/acre (1.86 L/100 m 2 ) to about 200 gal/acre (18.6 L/100 m 2 ).

21. The method of claim 1 , wherein the non-aqueous portion of the oil-in-water emulsion is applied to the turfgrass in a range of about 1 gal/acre (0.093 L/100 m 2 ) to about 15 gal/acre (1.395 L/100 m 2 ).

22. The method of claim 1 , wherein the formulation comprises:
a synthetic isoparaffinic oil having an independently selected carbon number distribution of from C16 to C35;
one or more emulsifiers, each of which is independently selected from the group consisting of natural or synthetic alcohol ethoxylate, glycerol oleate, and nonyl phenol ethoxylates;
a polychlorinated (Cu II) phthalocyanine; and
a silicone surfactant, which is independently selected from the group consisting of trisiloxanes and silicone polyethers of Formula I

where R═H, CH 3 , or COCH 3 ; x=1 to 24; n=0 or ≧1; and m=1; and
water;
wherein the silicone surfactant represents from about 0.1 wt % to about 5 wt % of the total weight of the paraffinic oil, one or more emulsifiers, polychlorinated (Cu II) phthalocyanine, and silicone surfactant;
wherein the one or more emulsifiers represent from about 0.5 wt % to about 5 wt % of the total weight of the paraffinic oil, one or more emulsifiers, polychlorinated (Cu II) phthalocyanine, and silicone surfactant;
wherein the polychlorinated (Cu II) phthalocyanine repr

Assignees

• Suncor Energy Inc

Inventors

• Fefer Michael
• Liu Jun
• Ruo Tomoki
• Hevia Sonia Edith

Classifications

• A01N25/04

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

• A01N27/00

  Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons · CPC title

• A01N47/30

  Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl · CPC title

• A01N55/02

  containing metal atoms · CPC title

• A01N43/653

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