Liquid-fertilizer ready formulations of bifenthrin

Patent metadata

Field	Value
Publication number	US-9481613-B2
Application number	US-201514597427-A
Country	US
Kind code	B2
Filing date	Jan 15, 2015
Priority date	Dec 5, 2013
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Insecticidal compositions suitable for use in preparation of insecticidal liquid fertilizers are disclosed. The compositions include bifenthrin, a polymeric dispersant, a suspension agent, a freeze-thaw stabilizer, and optionally a preservative.

First claim

What is claimed is:

1. An insecticidal composition comprising:
a) from about 5% to about 40% of bifenthrin;
b) from about 0.1% to about 30% of a polymeric dispersant selected from the group consisting of polyacrylic acids, polymethacrylic acids, copolymers thereof, salts thereof, and combinations thereof;
c) from about 0.1% to about 30% of a suspension agent selected from the group consisting of attapulgite clay, fumed silica, and combinations thereof,
d) from about 1% to about 10% of a freeze-thaw stabilizer selected from the group consisting of polyalkylene glycol and ammonium sulfate, and
e) optionally, a preservative selected from the group consisting of isothiazolinone, a mixture of isothiazolinones, biocidal compounds, and antimicrobial compounds.

2. The composition of claim 1 , wherein said polymeric dispersant is selected from the group consisting of polyacrylic acids, salts thereof, and combinations thereof.

3. The composition of claim 2 , wherein said salt comprises a sodium salt.

4. The composition of claim 1 , wherein said suspension agent is fumed silica.

5. The composition of claim 1 further comprising a liquid fertilizer.

6. The composition of claim 5 , wherein said liquid fertilizer is aqueous-based.

7. The composition of claim 1 , further comprising at least one additive selected from the group consisting of surfactants, wetting agents, anti-foam agents, preservatives and biocides.

8. The composition of claim 1 , wherein said freeze-thaw stabilizer comprises ammonium sulfate.

9. The composition of claim 1 , wherein said polymeric dispersant comprises a salt of polyacrylic acid, having an average molecular weight between about 1000 and about 100,000 Daltons.

10. A process for preparing a homogenous composition comprising (a) dispersing from about 5% to about 40% of bifenthrin in a mixture of water and from about 0.1% to about 30% of a polymeric dispersant selected from the group consisting of polyacrylic acids, polymethacrylic acids, copolymers thereof, salts thereof, and combinations thereof, from about 1% to about 10% of a freeze-thaw stabilizer, from about 0.1% to about 30% of a suspension agent selected from the group consisting of attapulgite clay, fumed silica, and combinations thereof and optionally an anti-foam agent and/or a preservative; and (b) wet milling the mixture to an average particle size of about 0.1 to about 10 microns, wherein said freeze-thaw stabilizer is selected from the group consisting of polyalkylene glycol and ammonium sulfate, said anti-foam agent includes an alkylcyclotetrasiloxane, and said preservative is selected from the group consisting of isothiazolinone, a mixture of isothiazolinones, biocidal compounds, and antimicrobial compounds.

11. The process of claim 10 , wherein the particle size ranges between about 1 to about 5 microns.

12. A method of controlling unwanted insects and providing nutrients to plants, the method comprising applying to an area infested with insects and containing such plants an effective amount of a composition according to claim 1 .

Assignees

• Fmc Corp

Inventors

• Martin Timothy M

Classifications

• C05G3/60 Primary

  Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants · CPC title

• A01N53/00

  Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof · CPC title

• A01N25/10 Primary

  Macromolecular compounds · CPC title

• A01N25/30

  characterised by the surfactants · CPC title

• Y10S424/10

  Insect repellent · CPC title