Pesticidal composition

Patent metadata

Field	Value
Publication number	US-9307760-B2
Application number	US-201214001942-A
Country	US
Kind code	B2
Filing date	Mar 7, 2012
Priority date	Mar 8, 2011
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

The present invention relates to an aqueous pesticidal composition having excellent pesticidal activity, particularly a pesticidal composition comprising a pesticidal active ingredient, a carboxy-modified methyl methacrylate-butadiene copolymer, a surfactant and water, wherein the amount of the carboxy-modified methyl methacrylate-butadiene copolymer is 20-100 parts by weight relative to 100 parts by weight of the pesticidal active ingredient and the amount of the surfactant is 0.1-50 parts by weight relative to 100 parts by weight of the pesticidal active ingredient.

First claim

The invention claimed is:

1. A pesticidal composition comprising a pesticidal active ingredient, a carboxy-modified methyl methacrylate-butadiene copolymer, a surfactant and water,
wherein the amount of the carboxy-modified methyl methacrylate-butadiene copolymer is 20-100 parts by weight relative to 100 parts by weight of the pesticidal active ingredient and the amount of the surfactant is 0.1-50 parts by weight relative to 100 parts by weight of the pesticidal active ingredient, and wherein the pesticidal active ingredient and the carboxy-modified methyl methacrylate-butadiene copolymer are respectively dispersed in water.

2. The pesticidal composition according to claim 1 , comprising 1-50% by weight of the pesticidal active ingredient; 0.2-50% by weight of the carboxy-modified methyl methacrylate-butadiene copolymer; 0.1-10% by weight of the surfactant; and 20-80% by weight of water.

3. The pesticidal composition according to claim 2 , comprising 5-20% by weight of the carboxy-modified methyl methacrylate-butadiene copolymer.

4. The pesticidal composition according to claim 2 , comprising 4-6% by weight of the surfactant.

5. The pesticidal composition according to claim 1 , wherein the surfactant is at least one selected from polyoxyethylene tristyrylphenyl ether phosphate esters and ligninsulfonates.

6. The pesticidal composition according to claim 1 , comprising 15-25% by weight of the pesticidal active ingredient.

7. The pesticidal composition according to claim 1 , wherein the pesticidal active ingredient is at least one selected from fenpyrazamine and 2-[(2,5-dimethylphenoxy)methyl]-α-methoxy-N-methyl-benzeneacetamide.

8. The pesticidal composition according to claim 1 , wherein the mean particle diameter of the carboxy-modified methyl methacrylate-butadiene copolymer is 0.1-0.3 μm; the gel content of the copolymer is not less than 80% by weight; and the glass-transition temperature of the copolymer is not more than −10° C.

9. A method for applying the pesticidal composition according to claim 1 , which comprises diluting the pesticidal composition according to claim 1 with water, and applying the resultant water-diluted liquid to a plant by foliage spraying.

10. A method for producing the pesticidal composition according to claim 1 , which comprises producing a dispersion comprising a pesticidal active ingredient, a surfactant and water, adding a carboxy-modified methyl methacrylate-butadiene copolymer to the dispersion, and uniformly dispersing the copolymer in the mixture.

11. A method for producing the pesticidal composition according to claim 1 , which comprises producing a dispersion comprising a pesticidal active ingredient, a surfactant and water, adding a latex comprising a carboxy-modified methyl methacrylate-butadiene copolymer to the dispersion, and uniformly dispersing the copolymer in the mixture.

12. The pesticidal composition according to claim 3 , comprising 4-6% by weight of the surfactant.

13. The pesticidal composition according to claim 2 , wherein the surfactant is at least one selected from polyoxyethylene tristyrylphenyl ether phosphate esters and ligninsulfonates.

14. The pesticidal composition according to claim 3 , wherein the surfactant is at least one selected from polyoxyethylene tristyrylphenyl ether phosphate esters and ligninsulfonates.

15. The pesticidal composition according to claim 4 , wherein the surfactant is at least one selected from polyoxyethylene tristyrylphenyl ether phosphate esters and ligninsulfonates.

16. The pesticidal composition according to claim 2 , comprising 15-25% by weight of the pesticidal active ingredient.

17. The pesticidal composition according to claim 3 , comprising 15-25% by weight of the pesticidal active ingredient.

18. The pesticidal composition according to claim 4 , comprising 15-25% by weight of the pesticidal active ingredient.

19. The pesticidal composition according to claim 5 , comprising 15-25% by weight of the pesticidal active ingredient.

20. The pesticidal composition according to claim 2 , wherein the pesticidal active ingredient is at least one selected from fenpyrazamine and 2-[(2,5-dimethylphenoxy)methyl]-α-methoxy-N-methyl-benzeneacetamide.

Assignees

• Mizutani Motofumi
• Kozuki Yumiko
• Owaki Maki
• Takaishi Masanao
• Soma Masato
• Sumitomo Chemical Co

Inventors

• Mizutani Motofumi
• Kozuki Yumiko
• Owaki Maki
• Takaishi Masanao
• Soma Masato

Classifications

• A01N25/04 Primary

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

• A01N25/10

  Macromolecular compounds · CPC title

• A01N25/24

  containing ingredients to enhance the sticking of the active ingredients · CPC title

• A01N37/18

  containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof · CPC title

• A01N25/30 Primary

  characterised by the surfactants · CPC title