Methods for reducing the population of arthropods with medium chain peroxycarboxylic acid compositions

• US 20050288204A1
• Filed: 07/06/2005
• Published: 12/29/2005
• Est. Priority Date: 01/09/2004
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: Man, Victor Fuk-Pong, Tarara, James J., Nelson, Thomas D., Magnuson, Joshua P., Barcay, S. John, Matts, Emory H.
• Granted Patent: US 9,511,161 B2
• Time in Patent Office: Days
• US Class Current: 510/375
• 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 25/04 Dispersions, emulsions, suspoemulsions, suspension concentrates or gels foams A01N25/16
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/16 containing the group; Thio analogues thereof
• CPC Class Codes: A23L 3/3508 containing carboxyl groups
• CPC Class Codes: A23L 3/358 Inorganic compounds
• CPC Class Codes: A61L 2/183 Ozone dissolved in a liquid
• CPC Class Codes: A61L 2/186 Peroxide solutions
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 2/23 Solid substances, e.g. granules, powders, blocks, tablets
• CPC Class Codes: A61L 2/235 cellular, porous or foamed
• CPC Class Codes: A61L 2202/18 Aseptic storing means
• CPC Class Codes: A61L 2202/23 Containers, e.g. vials, bottles, syringes, mail
• CPC Class Codes: A61L 2202/24 Medical instruments, e.g. endoscopes, catheters, sharps
• CPC Class Codes: A61P 31/04 Antibacterial agents

Abstract

The present invention relates to methods for reducing the population of (e.g., killing) arthropods employing compositions including medium chain peroxycarboxylic acid, and to the compositions. The methods include applying a medium chain peroxycarboxylic acid composition to an arthropod or a surface or area suspected of housing an arthropod.

Claims

1. A method of killing an arthropod comprising:

contacting an arthropod with a medium chain peroxycarboxylic acid composition in an amount and time sufficient to kill the arthropod.

2. The method of claim 1, wherein the medium chain peroxycarboxylic acid composition comprises peroxyoctanoic acid.

3. The method of claim 1, wherein the medium chain peroxycarboxylic acid composition further comprises stabilizing agent.

4. The method of claim 1, wherein the medium chain peroxycarboxylic acid composition comprises:

about 0.0005 to about 5 wt-% medium chain peroxycarboxylic acid;

about 0.001 to about 10 wt-% medium chain carboxylic acid;

about 0 to about 99.99 wt-% water; and

about 0.001 to about 80 wt-% solubilizer effective for solubilizing the medium chain peroxycarboxylic acid and the medium chain carboxylic acid;

the composition comprising about 2 or more parts by weight of medium chain peroxycarboxylic acid for each 7 parts by weight of medium chain carboxylic acid.

5. The method of claim 1, wherein the medium chain peroxycarboxylic acid composition comprises:

about 0.5 to about 5 wt-% peroxyoctanoic acid;

about 1 to about 10 wt-% octanoic acid;

about 5 to about 97 wt-% water;

about 1 to about 20 wt-% anionic surfactant;

about 5 to about 10 wt-% oxidizing agent;

about 15 to about 35 wt-% inorganic acid; and

about 1 to about 5 wt-% sequestrant;

the composition comprising a microemulsion.

6. The method of claim 1, wherein the medium chain peroxycarboxylic acid composition comprises:

about 0.0005 to about 5 wt-% peroxyoctanoic acid;

about 0.001 to about 10 wt-% octanoic acid;

about 40 to about 99.99 wt-% water;

about 0.001 to about 60 wt-% at least one of polyalkylene oxide, monoalkyl ether of polyalkylene oxide, dialkyl ether of polyalkylene oxide, anionic surfactant, and nonionic surfactant;

about 0.002 to about 10 wt-% oxidizing agent;

about 0.001 to about 30 wt-% inorganic acid; and

about 0.001 to about 5 wt-% sequestrant.

7. The method of claim 1, comprising contacting the arthropod with a composition comprising about 0.1 to about 20 wt-% medium chain peroxycarboxylic acid composition.

8. The method of claim 1, wherein contacting comprises contacting the arthropod with a foamed composition.

9. The method of claim 1, wherein contacting comprises contacting the arthropod with a wet spray.

10. The method of claim 1, wherein contacting comprises contacting the arthropod with an aerosol spray.

11. The method of claim 1, wherein the arthropod comprises an insect.

12. The method of claim 1, wherein the arthropod comprises an arachnid.

13. The method of claim 1, wherein the arthropod comprises a centipede, millipede, or sow bug.

14. The method of claim 1, wherein the composition comprises a high concentration of medium chain peroxyoctanoic acid and the arthropod is contacted with a low volume of the composition per arthropod.

15. The method of claim 1, wherein the composition comprises a low concentration of medium chain peroxyoctanoic acid and the arthropod is contacted with a high volume of the composition per arthropod.

16. The method of claim 1, wherein the arthropod comprises an arthropod egg.

17. The method of claim 1, wherein the arthropod comprises an arthropod larvae.

18. A method of killing an arthropod egg comprising:

contacting an arthropod egg with a medium chain peroxycarboxylic acid composition in an amount and time sufficient to kill the arthropod egg.

19. The method of claim 18, wherein the medium chain peroxycarboxylic acid composition comprises peroxyoctanoic acid.

20. The method of claim 18, wherein the medium chain peroxycarboxylic acid composition comprises:

about 0.5 to about 5 wt-% peroxyoctanoic acid;

about 1 to about 10 wt-% octanoic acid;

about 5 to about 97 wt-% water;

about 1 to about 20 wt-% anionic surfactant;

about 5 to about 10 wt-% oxidizing agent;

about 15 to about 35 wt-% inorganic acid; and

about 1 to about 5 wt-% sequestrant;

the composition comprising a microemulsion.

21. The method of claim 18, comprising contacting the arthropod with a composition comprising about 0.1 to about 20 wt-% medium chain peroxycarboxylic acid composition.

22. The method of claim 18, wherein contacting comprises contacting the arthropod egg with a foamed composition.

23. The method of claim 18, wherein the arthropod egg comprises a cockroach egg.

24. A method of killing arthropod larva comprising:

contacting an arthropod larva with a medium chain peroxycarboxylic acid composition in an amount and time sufficient to kill the arthropod larva.

25. The method of claim 24, wherein the medium chain peroxycarboxylic acid composition comprises peroxyoctanoic acid.

26. The method of claim 24, wherein the medium chain peroxycarboxylic acid composition comprises:

about 0.5 to about 5 wt-% peroxyoctanoic acid;

about 1 to about 10 wt-% octanoic acid;

about 5 to about 97 wt-% water;

about 1 to about 20 wt-% anionic surfactant;

about 5 to about 10 wt-% oxidizing agent;

about 15 to about 35 wt-% inorganic acid; and

about 1 to about 5 wt-% sequestrant;

the composition comprising a microemulsion.

27. The method of claim 24, comprising contacting the arthropod with a composition comprising about 0.1 to about 20 wt-% medium chain peroxycarboxylic acid composition.

28. The method of claim 24, wherein contacting comprises contacting the arthropod larva with a foamed composition.