Pesticide preparation and process for producing the same
View Patent ↗A novel pesticide preparation, which can be easily produced at a low cost and has sustained release properties, is provided. A pesticide preparation containing a pesticide active ingredient and a heat-meltable material and/or a thermoplastic material, the pesticide preparation further containing an amine being capable of forming an associated state with the pesticide active ingredient and containing a group having a hydrophobic moiety on a nitrogen atom.
1. A pesticide preparation comprising as pesticide active ingredient a herbicide for paddy field weed and a heat-meltable material and/or a thermoplastic material, which is a wax, a polycyclic aromatic hydrocarbon, or a mixture thereof
the pesticide preparation further comprising an amine,
wherein the amine is represented by formula (I)
wherein
R 1 is a group having 3 to 20 carbon atoms as the group having a hydrophobic moiety and which is selected from the group consisting of a substituted or unsubstituted phenyl group, benzyl group, pyridyl group, pyrrolyl group, quinolyl group, toluidyl group, indolyl group, imidazolyl group, and pyrazyl group, and
R 2 and R 3 are independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted hydrocarbon group.
2. The pesticide preparation according to claim 1 , wherein the amine is at least one amine selected from the group consisting of aniline, diphenylamine, N,N-dimethylaniline, N-methylaniline, N,N-diethylaniline, N-ethylaniline and dibenzylamine.
3. The pesticide preparation according to claim 1 , wherein the amine is at least one amine selected from the group consisting of diphenylamine, N,N-dimethylaniline and N-methylaniline.
4. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises at least one compound selected from the group consisting of pyrimisulfan, triafamone, tefuryltrione, ketospiradox, mesotrione, sulcotrione and tembotrione.
5. The pesticide preparation according to claim 1 ,
further comprising a carrier,
the carrier being at least one selected from the group consisting of calcium montmorillonite, attapulgite, pumice, perlite, diatomaceous earth, vermiculite, talc and clay.
6. A process for producing the pesticide preparation according to claim 1 , the process comprising:
mixing a pesticide active ingredient, an amine of formula (I), a heat-meltable material and/or a thermoplastic material, which is a wax, polycyclic aromatic hydrocarbon or a mixture thereof, and a carrier under heating.
7. The pesticide preparation according to claim 1 , wherein the amine is diphenylamine.
8. The pesticide preparation according to claim 1 , wherein the amine is N,N-dimethylaniline.
9. The pesticide preparation according to claim 1 , wherein the amine is N-methylaniline.
10. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises pyrimisulfan.
11. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises triafamone.
12. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises tefuryltrione.
13. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises ketospiradox.
14. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises mesotrione.
15. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises sulcotrione.
16. The pesticide preparation according to claim 1 , wherein the pesticide active ingredient comprises tembotrione.
17. A method of killing a weed in a paddy field comprising applying the pesticide preparation according to claim 1 to said weed.