Herbicide compositions with improved properties
Inventors
LORENTZ, Lothar • Deckwer, Roland • Sachau, Stefan • Bickers, Udo • TELSCHER, MARKUS • KAZMIERCZAK, ANGELA
Assignees
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Publication Number
US-12342814-B2
Publication Date
2025-07-01
Expiration Date
Abstract
The present invention relates to the technical field of crop protection compositions (formulations) comprising water soluble herbicidal active ingredients and certain further constituents having improved properties, in particular regarding rainfastness and/or herbicidal efficacy. The invention also relates to methods of manufacturing such compositions and the use of such compositions.
Core Innovation
The invention relates to herbicidal crop protection compositions that exhibit improved rainfastness and/or herbicidal efficacy. The compositions include one or more water-soluble herbicidal active crop protectant ingredients, combined with specific surfactant components and defined ester additives.
The surfactant components are selected from C10-C16 fatty alcohol diethylene glycol ether sulfate salts and/or C8-C12 alkylpolyglucosides with a degree of polymerization of less than 5, and/or C12-C16 alkyl amine ethoxylates having 2 to 10 ethylene oxide units. The ester additives are selected from specific ester groups (c1) to (c3) having defined structural constraints, including esters of the forms R1COOR2, R3OOC-(CH2)x-COOR4, and (R5O)3P=O.
The compositions may include quantitative relationships among constituents (a) to (c), including ranges for the total amount of constituent (a) relative to constituent (c) and relative to constituent (b). The compositions may optionally include organic solvents, water, alkyl sulfosuccinate salt surfactants, formulation adjuvants, herbicide safeners, or additional herbicidal active crop protectant ingredients.
Claims Coverage
The partial content provides two independent claims covering a rainfastness-improved herbicidal composition and a rainfastness-improving method. Three inventive features are identified across the claims: the defined ester structures (c1)-(c3), the specified surfactant classes for constituent (b), and the quantitative relationships among constituents (a), (b), and (c).
Rainfastness-improved herbicidal composition with defined ester additives
A composition comprising one or more water-soluble herbicidal active crop protectant ingredients, one or more C10-C16 fatty alcohol diethylene glycol ether sulfate salts and/or C8-C12 alkylpolyglucosides with a degree of polymerization of less than 5, and/or C12-C16 alkyl amine ethoxylates with 2 to 10 ethylene oxide units, and one or more esters selected from (c1) R1COOR2, (c2) R3OOC-(CH2)x-COOR4, and (c3) (R5O)3P=O, with defined carbon-number constraints.
Quantitative ratio constraints for rainfastness improvement
The total amount of constituent (a) relative to constituent (c) is in a range of from 60:1 to 2:1, and the total amount of constituent (a) relative to constituent (b) is in a range of from 10:1 to 1:6, with improved rainfastness as compared to a composition including components (a) and (b).
Improving rainfastness by adding defined esters and surfactant components
A method for improving rainfastness of a composition comprising one or more water-soluble herbicidal active crop protectant ingredients by adding one or more esters selected from (c1) to (c3) and adding one or more of the specified surfactant components.
The claims center on combining water-soluble herbicidal active crop protectant ingredients with specified surfactant classes and ester additives, together with defined quantitative ranges among constituents (a), (b), and (c) for the composition claim and additive selections for the method claim.
Stated Advantages
Improved rainfastness as compared to a composition including components (a) and (b).
Documented Applications
A method for improving rainfastness of a composition comprising one or more water-soluble herbicidal active crop protectant ingredients by adding specified esters and specified surfactant components.
Controlling unwanted plant growth by applying an effective amount of a composition as defined in claim 1 to a plant, a plant part, or a cultivation area.
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