Herbicide compositions with epyrifenacil and 2,4-D triethanolamine salt with improved properties
AssigneeMonsanto Technology LLC
InventorGaniyu A. Jimoh
Life of this patent
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Abstract
The present disclosure relates to the technical field of crop protection. The present disclosure primarily to herbicide compositions comprising as compound (A) ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropy-qrimidin-3-yl)phenoxy]-2-pyridyloxy] acetate (epyrifenacil) and as compound (B) the triethanolamine salt of 2,4-dichlorophenoxy-acetic acid (2,4-D), in particular to formulations of a certain type and preferably containing further constituents, said compositions and formulations having improved properties. The disclosure also relates to methods of manufacturing such compositions and formulations and the use of such compositions and formulations.
Claims27
A herbicide composition comprising compounds (A) and (B), wherein:
- (A) denotes ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-3-yl) phenoxy]-2-pyridyloxy] acetate (epyrifenacil);
- and
- (B) denotes the triethanolamine (TEA) salt of 2,4-D (2,4-dichlorophenoxyacetic acid), wherein the composition is in the form of an oil-in-water microemulsion, and the composition further comprises:
- a phosphate ester dispersant;
- and
- one or more drift retardant agents selected from:
- triglycerides of fatty acids with 12 to 24 carbon atoms;
- esters of fatty oils, wherein the fatty oils are selected from the group consisting soybean oil, an ester of soybean oil, canola oil, an ester of canola oil, palm oil, an ester of palm oil, rapeseed oil, an ester of rapeseed oil, sunflower seed oil, an ester of sunflower seed oil, corn oil, an ester of corn oil, peanut oil, an ester of peanut oil, sesame oil, an ester of sesame oil, olive oil, an ester of olive oil, castor oil and a combination thereof;
- polyacrylamides,
- polyethylene oxide, and
- guar gum.
A method of manufacturing a herbicide composition comprising compounds (A) and (B), wherein (A) denotes ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-3-yl) phenoxy]-2-pyridyloxy]acetate (epyrifenacil) and wherein (B) denotes the triethanolamine (TEA) salt of 2,4-D (2,4-dichlorophenoxyacetic acid), the method comprising:
- (i) providing water and compound (B);
- (ii) providing compound (A) dissolved in one or more organic solvents, wherein at least one of said organic solvents is not fully miscible with water and wherein compound (A) has a solubility of 5 wt. % or greater-in at least one of said organic solvents, measured at 25° C. and 1013 mbar;
- (iii) providing a phosphate ester dispersant, and optionally one or more stabilizing agents and one or more drift retardant agents;
- and
- mixing the constituents provided in steps (i), (ii) and (iii), wherein the one or more drift retardant agents triglycerides of fatty acids with 12 to 24 carbon atoms;
- esters of fatty oils, wherein the fatty oils are selected from the group consisting soybean oil, an ester of soybean oil, canola oil, an ester of canola oil, palm oil, an ester of palm oil, rapeseed oil, an ester of rapeseed oil, sunflower seed oil, an ester of sunflower seed oil, corn oil, an ester of corn oil, peanut oil, an ester of peanut oil, sesame oil, an ester of sesame oil, olive oil, an ester of olive oil, castor oil and a combination thereof;
- polyacrylamides,
- polyethylene oxide, and
- guar gum.
Dependencies are inferred from the claim text.