Composition for improving the efficacy of herbicides

Patent metadata

Field	Value
Publication number	US-9497961-B2
Application number	US-200913121285-A
Country	US
Kind code	B2
Filing date	Sep 29, 2009
Priority date	Sep 30, 2008
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

The present invention relates to a novel composition for improving the effectiveness of herbicides, to the use of this composition for improving the effectiveness of herbicides, to a herbicidal agent which comprises this composition and at least one herbicide, and to the use of this herbicidal agent for controlling undesired plant growth. The composition comprises:
(a) at least one C 1 -C 4 -alkyl ester of at least one aliphatic C 14 -C 22 -carboxylic acid, where the at least one carboxylic acid consists to at least 70% by weight of aliphatic carboxylic acids having 18 carbon atoms; (b) at least one anionic surfactant which is selected from the esterification products of monohydroxy-functional alkyl polyethers with inorganic polyprotonic acids; (c) at least one aliphatic C 14 -C 22 -carboxylic acid; (d) optionally at least one antifoam; and (e) at least one aromatic solvent.

First claim

The invention claimed is:

1. A composition comprising components (a), (b), (c), (d) and (e) in the following fractions:
(a) 35 to 40% by weight, based on the total weight of the components (a), (b), (c), (d) and (e), of at least one methyl or ethyl ester of at least one aliphatic C 14 -C 22 -carboxylic acid, where the at least one carboxylic acid consists of at least 70% by weight of aliphatic carboxylic acids having 18 carbon atoms, where the aliphatic carboxylic acids having 18 carbon atoms of component (a) is a mixture of at least one saturated C 18 -carboxylic acid, at least one monounsaturated C 18 -carboxylic acid, at least one diunsaturated C 18 -carboxylic acid and at least one triunsaturated C 18 -carboxylic acid, where the amount of monounsaturated C 18 -carboxylic acid is at least 60%, based on the total weight of this mixture, where the at least one monounsaturated C 18 -carboxylic acid comprises oleic acid;
(b) 20 to 25% by weight, based on the total weight of the components (a), (b), (c), (d) and (e), of at least one anionic surfactant which is selected from the esterification products of monohydroxy-functional alkyl polyethers with inorganic polyprotonic acids;
(c) 3 to 7% by weight, based on the total weight of the components (a), (b), (c), (d) and (e), of at least one aliphatic C 14 -C 22 -carboxylic acid, where the fraction of oleic acid is at least 80%, based on the total weight C 14 -C 22 -carboxylic acid of component (c);
(d) 0 to 0.5% by weight, based on the total weight of the components (a), (b), (c), (d) and (e), of optionally at least one antifoam; and
(e) at least one aromatic solvent, 100% by weight, based on the total weight of components (a), (b), (c), (d) and (e).

2. The composition according to claim 1 , where the at least one aliphatic C 14 -C 22 -carboxylic acid of component (a) consists of at least 80% by weight of aliphatic carboxylic acids having 18 carbon atoms.

3. The composition according to claim 1 , where the methyl or ethyl ester of component (a) is a methyl ester.

4. The composition according to claim 1 , where the at least one saturated C 18 -carboxylic acid comprises stearic acid,
where the at least one diunsaturated C 18 -carboxylic acid comprises linoleic acid, and
where the at least one triunsaturated C 18 -carboxylic acid comprises linolenic acid and/or elaeostearic acid.

5. The composition according to claim 1 , where the at least one anionic surfactant of component (b) is selected from phosphoric acid esters of at least one monohydroxy-functional alkyl polyether, and
where the at least one phosphoric acid ester of at least one monohydroxy-functional alkyl polyether is selected from phosphoric acid half-esters of at least one monohydroxy-functional alkyl polyether which are obtainable by oxyalkylation of C 10 -C 30 -alkanols with at least one C 2 -C 4 -alkylene oxide.

6. The composition according to claim 1 , where the at least one aliphatic C 14 -C 22 -carboxylic acid of component (c) is oleic acid.

7. The composition according to claim 1 , where the at least one aromatic solvent of component (e) comprises at most 1% by weight, based on the total weight of the aromatic solvent, of naphthalene.

8. A herbicidal agent comprising
(A) a composition according to claim 1 ; and
(B) at least one herbicide.

9. The herbicidal agent according to claim 8 , where the at least one herbicide is selected from hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors.

10. The herbicidal agent according to claim 9 , where HPPD inhibitors of the heterocycle type are selected from compounds of the formula I

in which
R 1 and R 2 , indendently of one another, are hydrogen, halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkylthio, C 1 -C 6 -haloalkylthio, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 1 -C 6 -alkylsulfonyl or C 1 -C 6 -haloalkylsulfonyl;
R 3 is hydrogen, halogen or C 1 -C 6 -alkyl;
R 4 is hydrogen or C 1 -C 6 -alkyl;
R 5 is C 1 -C 6 -alkyl; and
X is a 5-membered saturated, partially unsaturated or aromatic heterocycle with 1, 2 or 3 heteroatoms as ring members which are selected from O, S and N, where the heterocycle can carry 1, 2, 3 or 4 substituents which are selected from halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkylthio and C 1 -C 6 -haloalkylthio;
and the agriculturally compatible salts thereof.

11. The herbicidal agent according to claim 10 , where R 3 is hydrogen, R i and R 2 , independently of one another, are selected from halogen, C 1 -C 6 -alkyl, C 1 -C 6 -alkylthio, C 1 -C 6 -alkylsulfinyl and C 1 -C 6 -alkylsulfonyl and X is selected from isoxazolyl, 4,5-dihydroisoxazolyl and thiazolyl, which can carry 1, 2 or 3 substituents which are selected from halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkylthio and C 1 -C 6 -haloalkylthio.

12. The herbicidal agent according to claim 8 , where the at least one herbicide is an ALS inhibitor from the group of imidazolinones.

13. The herbicidal agent according to claim 8 , where the weight ratio of component A to component B is 1:200 to 200:1.

Assignees

• Krapp Michael
• Berghaus Rainer
• Becker Markus
• Sievernich Bernd
• Vantieghem Herve R
• Basf Se

Inventors

• Krapp Michael
• Berghaus Rainer
• Becker Markus
• Sievernich Bernd
• Vantieghem Herve R

Classifications

• A01N25/30 Primary

  characterised by the surfactants · CPC title

• A01N25/02

  containing liquids as carriers, diluents or solvents · 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

• A01N43/56

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