Non-aqueous active ingredient concentrates having an herbicidal effect

Patent metadata

Field	Value
Publication number	US-9826739-B2
Application number	US-37632007-A
Country	US
Kind code	B2
Filing date	Aug 3, 2007
Priority date	Aug 4, 2006
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

The present invention relates to active compound concentrates having herbicidal action, comprising
a) from 10 to 100 g/l of at least one 4-benzoyl-substituted pyrazole compound of the formula I
in which

R 1 , R 3 independently of one another are hydrogen, halogen, methyl, halomethyl, methoxy, halomethoxy, methylthio, methylsulfinyl or methylsulfonyl;
R 2 is a 5-membered heterocyclic radical which is unsubstituted or carries 1, 2, 3 or 4 substituents selected from the group consisting of halogen, C 1 -C 6 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkyl, C 1 -C 4 -haloalkoxy and C 1 -C 4 -alkylthio;
R 4 is hydrogen, halogen or methyl;
R 5 is C 1 -C 6 -alkyl, C 3 -C 6 -cycloalkyl or C 3 -C 6 -cycloalkylmethyl; and
R 6 is hydrogen or C 1 -C 4 -alkyl;
or one of its agriculturally useful salts,

b) from 200 to 700 g/l of 2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)acetamide, and
c) from 10 to 200 g/l of at least one surfactant S selected from a mixture of at least one anionic surfactant and at least one nonionic surfactant,
where the components a), b) and c) are present dissolved in a mixture of organic solvents consisting to at least 95% by weight, based on the solvent mixture, of

d1) at least one aprotic polar organic solvent having a miscibility with water at 25° C. and 1 bar of at least 50 g/l, and
d2) at least one organic solvent having a solubility in water at 25° C. and 1 bar of less than 5 g/l.

First claim

The invention claimed is:

1. A non-aqueous active compound concentrate comprising
a) from 10 to 100 g/l of at least one 4-benzoyl-substituted pyrazole compound of the formula I or one of its salts

 in which R 1 and R 5 are each methyl; R 3 is methylsulfonyl; R 2 is 4,5-dihydroisoxazol-3-yl; and R 4 and R 6 are hydrogen,
b) from 400 to 700 g/l of 2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethy)acetamide, and
c) from 10 to 200 g/l of at least one surfactant S selected from a mixture of at least one anionic surfactant and at least one nonionic surfactant,
where the components a), b) and c) are present dissolved in a mixture of organic solvents containing at least 95% by weight, based on the solvent mixture, of
d1) at least one aprotic polar organic solvent having a miscibility with water at 25° C. and 1 bar of at least 50 g/l, which is selected from the group consisting of dimethyl sulfoxide, N-methylpyrrolidone, N-ethylpyrrolidone, and mixtures thereof, and
d2) at least one organic solvent having a solubility in water at 25° C. and 1 bar of less than 5 g/l, which is a hydrocarbon solvent;
in which the anionic surfactant is selected from the group consisting of compounds comprising at least one SO 3 group or one PO 4 group and at least one aliphatic hydrocarbon radical having 8 to 22 carbon atoms or an araliphatic hydrocarbon radical having 10 to 24 carbon atoms and in which the nonionic surfactant comprises, as main component, at least one poly-C 2 -C 3 -alkylene glycol ether compound, where the weight ratio of apolar protic solvent to hydrocarbon solvent is from 1:10 to 10:1, and where the total amount of organic solvent is from 300 to 600 g/l.

2. The active compound concentrate according to claim 1 , wherein the organic solvent has a solubility in water at 25° C. and 1 bar of less than 5 g/l is a hydrocarbon solvent and in which the weight ratio of aprotic polar solvent to hydrocarbon solvent is in the range of from 5:1 to 1:5.

3. The non-aqueous active compound concentrate of claim 1 in which the concentration of the at least one 4-benzoyl-substituted pyrazole compound of the formula I or its salt is from 20 to 100 g/l.

4. The non-aqueous active compound concentrate of claim 1 in which the concentration of the at least one 4-benzoyl-substituted pyrazole compound of the formula I or its salt is from 20 to 50 g/l.

5. The non-aqueous active compound concentrate of claim 1 in which the concentration of the 2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)acetamide is from 400 to 600 g/l.

6. The non-aqueous active compound concentrate of claim 4 in which the concentration of the 2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)acetamide is from 400 to 600 g/l.

7. The non-aqueous active compound concentrate of claim 1 wherein the aprotic polar organic solvent is N-methylpyrrolidone.

8. The non-aqueous active compound concentrate of claim 4 wherein the aprotic polar organic solvent is N-methylpyrrolidone.

9. A method for controlling unwanted vegetation which comprises preparing an aqueous spray liquor by diluting an active compound concentrate according to claim 1 and applying the spray liquor to act on plants, their seeds and/or their habitat and allowing the spray liquor to act on plants, their seeds and/or their habitat.

10. The method according to claim 9 which comprises treating the leaves of the unwanted plants with the aqueous spray liquor.

Assignees

• Krapp Michael
• Berghaus Rainer
• Bratz Matthias
• Kibler Elmar
• Vantieghem Herve R
• Basf Se

Inventors

• Krapp Michael
• Berghaus Rainer
• Bratz Matthias
• Kibler Elmar
• Vantieghem Herve R

Classifications

• A01N25/30

  characterised by the surfactants · CPC title

• A01N43/10

  with sulfur as the ring hetero atom · CPC title

• A01N43/56 Primary

  1,2-Diazoles; Hydrogenated 1,2-diazoles · CPC title

• A01N43/80

  five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2 · CPC title

• A01N25/02

  containing liquids as carriers, diluents or solvents · CPC title