Non-aqueous emulsifiable concentrate formulation
View Patent ↗The invention relates to a non-aqueous, emulsifiable concentrate (EC) formulation for crop protection active compounds which comprises (a1) 50 to 300 g/L of at least one azole derivative having a free hydroxy group or a salt or an adduct thereof, preferably a compound of formula I, wherein, R 1 and R 2 each independently represent hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl or alkadienyl group; R 3 represents a halogen atom or an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, alkoxy or aryl group; A represents a nitrogen atom or a CH group; and n represents an integer from 0 to 2; (a2) optionally, 50 to 500 g/L of at least one additional fungicidally active compound; (b) up to 700 g/L of one or more alkoxylates of an aliphatic alcohol, (c) up to 100 g/L of one or more non-ionic dispersants, (d) 10 to 100 g/L of one or more anionic dispersants, (e) 50 to 600 g/L of one or more polar aprotic organic solvents, and (f) 150 to 500 g/L of one or more non-polar organic solvents, any (g) up to 5 g/L of one or more defoamers, and to the use of such a emulsifiable concentrate as a fungicide.
1. A non-aqueous, emulsifiable concentrate (EC) formulation for fungicidal crop protection active compounds which comprises
(a1) 50 to 300 g/L of at least one azole derivative having a free hydroxy group or a salt or an adduct thereof;
(a2) optionally 50 to 500 g/L of at least one additional fungicidally active compound;
(b) 100 to 700 g/L of one or more alkoxylates of an aliphatic alcohol,
(c) up to 100 g/L of one or more non-ionic dispersants,
(d) 10 to 100 g/L of one or more anionic dispersants,
(e) 50 to 600 g/L of one or more polar aprotic organic solvents selected from the group consisting of N-alkylpyrrolidones, N-cycloalkylpyrrolidones, N-hydroxyalkyl-pyrrolidones and lactones,
(f) up to 500 g/L of one or more non-polar organic solvents, and
(g) up to 5 g/L of one or more defoamers.
2. A formulation according to claim 1 wherein component (a1) is a compound of formula I
in which
R 1 and R 2 each independently represent hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl or alkadienyl group;
R 3 represents a halogen atom or an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, alkoxy or aryl group;
A represents a nitrogen atom or a CH group; and
n represents an integer from 0 to 2.
3. A formulation according to claim 1 wherein component (a1) is metconazole.
4. A formulation according to claim 1 wherein said alkoxylate of an aliphatic alcohol (b) is a C 5-20 alcohol being alkoxylated with 1 to 20 C 2-6 alkoxy groups.
5. A formulation according to claim 4 wherein said alkoxylate (b) is a straight-chain or branched C 7-19 alcohol being alkoxylated with 4 to 18 ethoxy and/or propoxy groups, or a mixture thereof.
6. A formulation according to claim 1 wherein the ratio of the crop protection active compounds (a1 and optionally a2) to said alkoxylates of an aliphatic alcohol (b) is between 1:0.5 and 1:100.
7. A formulation according to claim 1 wherein the polar aprotic solvent (e) is immiscible with water.
8. An EC according to claim 1 wherein the de- foamer (g) is selected from perfluoroalkyl-phosphonic acids, per- fluoroalkylphosphinic acids and mixtures thereof, and which addi tionally comprises a silicone-based defoamer.
9. A method for combating a fungus at a locus which com prises emulsifying a formulation as claimed in claim 1 with water and treating said locus with the obtained diluted aqueous for- mulation.
10. A formulation according to claim 6 wherein the ratio of the crop protection active compounds (a1 and optionally a2) to said alkoxylates of an aliphatic alcohol (b) is between 1:1 and 1:10.