Herbicide composition

Abstract

A stable herbicide composition comprising an aryloxyphenoxypropionic acid herbicide, an acid, ester or derivative thereof, or a combination thereof; and a surfactant system comprising a sulfated surfactant, a C 8‑20 Surfactant blends of alkoxylated alcohols and sorbitan derivatives. Also disclosed are methods of making the stable herbicide composition and methods of applying the stable herbicide composition to control undesirable plant growth.

Description

Technical Field

[0001] This invention relates to stable herbicide compositions comprising aryloxyphenoxypropionate compounds and methods for preparing such herbicide compositions. Background Technology

[0002] Emulsifiable concentrates (ECs) are typically anhydrous formulations that include the active ingredient, a water-immiscible solvent, surfactants, and other additives such as stabilizers, polymers, defoamers, wetting agents, etc. ECs are widely used due to their simple manufacturing process. When EC formulations are diluted with water in a spray can, they form spontaneous emulsions, comprising emulsion droplets ranging in size from 0.1 to 1.0 μm. These spontaneous emulsions can be achieved by selecting surfactants based on their ability to emulsify a solvent system containing the active ingredient into water. Physically stable emulsions can be formed by balancing the water-soluble and oil-soluble surfactant components at the water / solvent interface. When sprayed, the emulsion provides uniform and precise application of the active ingredient to the crop, which is essential for effective weed control.

[0003] In agrochemical formulations, surfactants are typically blended and not used as single components. Such blends may include two nonionic surfactants. More often, mixtures of nonionic and anionic surfactants are used. Surfactants are also known to improve herbicide efficacy. The effect of surfactants on the efficacy of active ingredients is quantified by increased leaf absorption; therefore, the type of surfactant used is particularly important for the delivery of herbicides, growth regulators, and defoliants. Thus, the selection of surfactants in agrochemical formulations is crucial.

[0004] Aryloxyphenoxypropionate herbicides, such as clodinafop, cyhalofop, haloxyfop, quizalofop, and their derivatives, are often formulated as ECs, typically consisting of organic solvents and surfactants. These ECs are usually applied after dilution with water.

[0005] Propyl-2-alkynyl(2R)-2-[4-(5-chloro-3-fluoropyridin-2-yl)oxyphenoxy]propionate is a member of the aryloxyphenoxypropionate class of compounds. It selectively controls wild oats, free-growing (domestic) oats, foxtail grass, yellow foxtail grass, barnyard grass, Persian bromegrass, and free-growing canary seeds in all types of spring and durum wheat.

[0006] Cyhalofop-butyl (butyl(2R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propionic acid) is a member of the aryloxyphenoxypropionic acid class of herbicides, which is known in the art as a fop herbicide and is used to control grassy weeds in rice.

[0007] Oxalide (2-ylmethyl-2-[4-(6-chloroquinoxalo-2-yl)oxyphenoxy]propionate), an aryloxyphenoxypropionic acid, is a selective post-emergence herbicide used to control annual and perennial weeds in potato, sugar beet, sunflower, rapeseed, peanut, and vegetable crops. Its mechanism of action includes inhibiting acetyl-CoA carboxylase activity.

[0008] Existing commercial EC formulations containing aryloxyphenoxypropionates or aryloxyphenoxypropionic acids (e.g., quizalofop-P-ethyl and quizalofop-P-ethyl derivatives) contain relatively large amounts of alkylphenol ethoxylate (APE)-based surfactants. APEs and their anionic derivatives are well-known surfactants in industry and have historically been heavily relied upon by agrochemical producers. APE surfactants are typically selected by formulators due to their properties in a wide range of areas, such as emulsion stability, acute toxicity, temporal and thermal stability, chemical and physical stability, solution, suspension, or dilution kinetics, shear stress tolerance, viscosity, or greater compatibility with other formulation components. However, recent regulatory restrictions have hampered the use of APEs in agrochemical formulations.

[0009] There is still a need to develop effective EC compositions with improved performance (including fine balancing of surfactants) and compliance with global regulatory requirements. Summary of the Invention

[0010] In one aspect, the present invention provides a stable herbicide composition comprising:

[0011] Aryloxyphenoxypropionate herbicides, their acids, esters or derivatives, or combinations thereof; and

[0012] Includes sulfated surfactants, C 8-20 Surfactant blends of alkoxylated alcohols and dehydrated sorbitol derivatives;

[0013] The weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.5 to 1:10.

[0014] In one aspect, the present invention provides a stable herbicide composition comprising:

[0015] Aryloxyphenoxypropionate herbicides, their acids, esters or derivatives, or combinations thereof; and

[0016] Includes sulfated surfactants, C 8-20 Blends of surfactants with alkoxylated alcohols and dehydrated sorbitol esters or ethoxylated dehydrated sorbitol esters.

[0017] The weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.5 to 1:10.

[0018] In one respect, the weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.9 to 1:5.

[0019] In another aspect, the present invention provides an emulsifiable concentrate composition comprising:

[0020] Aryloxyphenoxypropionate herbicides, including clodinafop, cyhalofop, haloxyfop, quizalofop, their acids, esters or derivatives, or combinations thereof; and

[0021] Includes sulfated surfactants, C 8-20 Surfactant blends of alkoxylated alcohols and dehydrated sorbitol derivatives;

[0022] The weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.9 to 1:5.

[0023] In another aspect, the present invention provides a method for preparing an emulsifiable concentrate composition, comprising:

[0024] An aryloxyphenoxypropionate herbicide, its acid, ester or derivative, or a combination thereof, is mixed with a solvent to prepare a first mixture;

[0025] A surfactant blend is added to the first mixture to obtain a second mixture, wherein the surfactant blend comprises a sulfated surfactant, C 8-20 Alkoxylated alcohols and sorbitol derivatives; and

[0026] The second mixture is ground to obtain an emulsifiable concentrate composition.

[0027] The ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.9 to 1:5.

[0028] In another aspect, the present invention provides a method for controlling unwanted vegetation, the method comprising contacting the vegetation or its location with a herbicidally effective amount of an emulsifiable concentrate composition, wherein the emulsifiable concentrate composition comprises:

[0029] Aryloxyphenoxypropionate herbicides, their acids, esters or derivatives, or combinations thereof; and

[0030] Includes sulfated surfactants, C 8-20Surfactant blends of alkoxylated alcohols and dehydrated sorbitol derivatives;

[0031] The weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant is 1:0.9 to 1:5.

[0032] The present invention also provides the use of the stable herbicidal composition of the present invention as a herbicide.

[0033] In another aspect, the present invention provides a kit. This kit comprises multiple components, said components comprising at least one ingredient of the stable herbicidal composition of the present invention. Detailed Implementation

[0034] The present invention provides stable herbicide compositions, including aryloxyphenoxypropionate herbicides.

[0035] This invention provides a stable EC composition comprising an aryloxyphenoxypropionate herbicide, its acid, ester, or derivative, or a combination thereof; and a surfactant blend, including a sulfated surfactant, C 8-20 Alkoxylated alcohols and sorbitol derivatives.

[0036] In one aspect, the present invention provides a stable EC composition comprising aryloxyphenoxypropionate and / or aryloxyphenoxypropionic acid herbicides.

[0037] In one aspect, the present invention provides a method for preparing a stable EC composition comprising an aryloxyphenoxypropionate and / or an aryloxyphenoxypropionic acid herbicide.

[0038] In one aspect, the present invention provides a method for using a stable EC composition comprising an aryloxyphenoxypropionic acid herbicide.

[0039] The following description is provided to aid in a comprehensive understanding of exemplary embodiments of the invention. It includes various specific details to aid understanding, but these are merely illustrative.

[0040] Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the invention. Furthermore, for clarity and brevity, descriptions of well-known functions and structures have been omitted.

[0041] The terminology used in the following description and claims is not limited to its bibliographical meaning, but is merely used by the inventors to enable a clear and consistent understanding of the invention. Therefore, it will be clear to those skilled in the art that the following description, which provides exemplary embodiments of the invention, is for illustrative purposes only and is not intended to limit the scope of the invention as defined by the claims and their equivalents.

[0042] For the purposes of this invention, it should be understood that various alternative variations and sequences of steps may be taken, unless explicitly stated to the contrary. Furthermore, except in any operational embodiment, or where otherwise indicated, all figures representing amounts of materials / components as used, for example, in the specification, should be understood to be modified in all cases by the term "about".

[0043] Therefore, before describing the invention in detail, it should be understood that the invention is not limited to the system or process parameters of the specific examples, which can of course vary. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments of the invention only and is not intended to limit the scope of the invention in any way. The use of examples anywhere in this specification (including embodiments of any terminology discussed herein) is merely illustrative and in no way limits the scope and meaning of the invention or any exemplary terminology.

[0044] Before elaborating on this topic in detail, it may be helpful to provide definitions for certain terms used herein. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this topic pertains. For clarity, the following definitions are provided.

[0045] The use of the terms “a / an” and “the”, and similar indicators (particularly in the context of the claims), should be interpreted to cover both the singular and the plural, unless otherwise stated herein or clearly contradicted by the context. The terms first, second, etc., as used herein do not imply any particular order, but are used merely for convenience to indicate multiple, for example, layers.

[0046] Unless otherwise specified, the terms “comprising,” “having,” “including,” and “containing” shall be interpreted as open-ended terms (i.e., meaning “including but not limited to”).

[0047] As used herein, “about” or “approximately” includes the stated value and refers to an acceptable deviation of a particular value, determined by one of ordinary skill in the art considering the measurement under discussion and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations, or within ±10% or ±5% of the stated value. Unless otherwise stated herein, the description of numerical ranges is intended only as a shorthand method for individually referring to each individual value falling within the range, and each individual value is incorporated into the specification as if it were described individually herein. The endpoints of all ranges are included within the range and can be combined independently. It should be understood that, where a parameter range is provided, all integers within the range and their tenths are also provided. For example, “0.1-80%” includes 0.1%, 0.2%, 0.3%, etc., up to 80%.

[0048] All methods described herein may be performed in a suitable order unless otherwise stated herein or clearly contradicted by the context. Unless otherwise required, the use of any and all exemplary or demonstrative language (e.g., “such as”) is intended only to better illustrate the invention and not to limit its scope. No language in this specification should be construed as indicating that any unclaimed element is necessary for the practice of the invention as used herein.

[0049] As used herein, the term "plant" or "crop" refers to a whole plant, plant organs (e.g., leaves, stems, shoots, roots, trunks, branches, buds, fruits, etc.), plant cells, or plant seeds. The term also covers plant crops, such as fruits. The term "plant" may further include its propagation material, which can include all reproductive parts of a plant, such as seeds and asexual plant material, such as cuttings and tubers, which can be used for plant propagation. This includes seeds, tubers, spores, bulbs, rhizomes, buds, basal buds, stolons, and other parts of a plant, including seedlings and young plants that are transplanted after germination or emergence from the soil.

[0050] As used herein, the term "site" refers to a designated vicinity or area for the growth of a desired crop, where the prevention and control of the growth and / or spread of undesirable vegetation is necessary. This site includes the vicinity of the desired crop plants, where undesirable vegetation growth has already occurred, is most likely to occur, or will occur in the future.

[0051] As used herein, "effective amount" or "weed-effective amount" is the amount of an active ingredient, such as a herbicide, that has an adverse effect on unwanted vegetation (e.g., weeds). Adverse effects include one or more of the following: deviation from natural growth, killing of unwanted vegetation, structural damage to unwanted vegetation, desiccation, and / or stunted growth.

[0052] The salt mentioned in this article is agriculturally acceptable salt. As used in this article, "agriculturally acceptable salt" means salt that is known and acceptable for use in agriculture or horticulture.

[0053] As used herein, the term "stable" refers to the chemical and / or physical stability of an active compound (e.g., a herbicide). Regarding herbicide compositions, specifically the emulsifiable concentrate compositions of the present invention, the term "stable" means that the formulation is a homogeneous, clear / crystal-like liquid and, when stored at -10°C for 7 days, exhibits [stability / stability]. < 0.05% sediment.

[0054] The term "emulsion stability" refers to the ability of a system to resist changes in its physicochemical properties over a certain time interval.

[0055] The stability tests described in this article were conducted according to the established methods of the International Committee for Pesticide Analysis (CIPAC).

[0056] The terms “percentage recovery” or “% recovery” refer to the amount of active ingredient remaining in the stable herbicidal composition of the present invention after storing the composition for a specified period of time under specified conditions, such as environmental conditions, accelerated thermal stability (AHS) conditions (about 54°C) or low temperature conditions (e.g., about -10°C).

[0057] As used herein, "alkyl" refers to a straight-chain or branched saturated aliphatic hydrocarbon having a specified number of carbon atoms. Alkyl groups include, for example, groups having 1 to 50 carbon atoms (C1 to C5). 50 alkyl).

[0058] "alkylene" refers to a straight-chain, branched, or cyclic divalent aliphatic hydrocarbon group and may have 1 to 18 carbon atoms, more specifically 2 to 12 carbon atoms. Exemplary alkylene groups include methylene (-CH2-), ethylene (-CH2CH2-), propylene (-(CH2)3-), and cyclohexylene (-C6H-). 10 -), methylenedioxy (-O-CH2-O-) or ethylenedioxy (-O-(CH2)2-O-).

[0059] "Aryloxy group" refers to the aryl moiety linked by an oxygen atom (i.e., -O-aryl). Aryloxy groups include C6 to C6 groups. 30 Aryloxy groups, and specifically C6 to C6. 18 Aryloxy groups. Non-limiting examples include phenoxy, naphthoxy, and tetrahydronaphthoxy groups.

[0060] Various solutions have been proposed to stabilize formulations containing aryloxyphenoxypropionate herbicides, such as quizalofop-P-ethyl, clodinafop-propionate, cyhalofop-butyl, and pyrifluquinazon, particularly quizalofop-P-ethyl. The presence of adjuvants, surfactants, and even water can, for example, lead to significant chemical degradation of aryloxyphenoxypropionate herbicides in the herbicidal composition. Since chemical stability is a commercially desirable factor, various solutions have been proposed to stabilize aryloxyphenoxypropionate herbicides, such as quizalofop-P-ethyl. However, there remains a need to develop stable herbicidal compositions containing quizalofop-P-ethyl in which the degradation rate of quizalofop-P-ethyl is controlled, and the effective concentration of quizalofop-P-ethyl can be maintained in the formulation for an extended period of time.

[0061] It has been surprisingly and unexpectedly discovered that stable EC compositions containing aryloxyphenoxypropionate herbicides or their acids can be achieved by using a sulfated surfactant, C 8-20 It is obtained by blending surfactants of alkoxylated alcohols and dehydrated sorbitol derivatives. In one aspect, the weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.5 to 1:10, or 1:0.9 to 1:5. This is achieved by combining a sulfated surfactant, C... 8-20Surfactant blends obtained from alkoxylated alcohols and dehydrated sorbitol derivatives impart better emulsification and stabilization to emulsifiable concentrate compositions. Furthermore, when the ratio of aryloxyphenoxypropionate herbicides to surfactant blends is 1:0.9 to 1:5, the herbicide compositions effectively control weeds.

[0062] The aryloxyphenoxypropionate herbicides disclosed herein include, but are not limited to, cyhalofop-butyl, quizalofop-p-ethyl, pyrfluthrin, pyrfluthrin, oxychlorpyrifos, oxadiazon, quizalofop-p-ethyl, quizalofop-p-ethyl, quizalofop-p-ethyl, their acids, esters, derivatives, or combinations thereof.

[0063] Cyfluthrin has the chemical name (prop-2-ynyl(2R)-2-[4-(5-chloro-3-fluoropyridin-2-yl)oxyphenoxy]propionate).

[0064] Oxadiazon has the chemical name 2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propionic acid.

[0065] Pyrfluthrin has the chemical name 2-[4-[5-(trifluoromethyl)pyridin-2-yl]oxyphenoxy]propionic acid.

[0066] Pyrfluthrin has the chemical name 2-(4-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenoxy)propionic acid.

[0067] Oxazolidinone has the chemical name -2-(4-((6-chlorobenzo[d]oxazol-2-yl)oxy)phenoxy)-N-(2-fluorophenyl)-N-methylpropionamide.

[0068] Oxalate has the chemical name 2-(prop-2-iminoamino)ethoxy(2R)-2-[4-(6-chloroquinoxalin-2-yl)oxyphenoxy]propionate.

[0069] Quinolone has the chemical name 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propionic acid.

[0070] In embodiments of the present invention, the stable herbicide composition comprises an aryloxyphenoxypropionate herbicide, its acid, ester, or derivative, or a combination thereof; and comprises a sulfated surfactant, C 8-20 Surfactant blends of alkoxylated alcohols and sorbitol derivatives.

[0071] In one embodiment of the present invention, the stable herbicide composition comprises:

[0072] The ratio of aryloxyphenoxypropionate herbicides, their acids, esters or derivatives or combinations thereof, to surfactants is 1:0.5 to 1:10.

[0073] According to one embodiment, the ratio of the aryloxyphenoxypropionate herbicide, its acid, ester or derivative or combination thereof, to the surfactant blend is from 1:0.9 to 1:5.

[0074] In one embodiment of the invention, a stable herbicide composition is formulated into an emulsifiable concentrate composition.

[0075] In one embodiment, the emulsifiable concentrate composition comprises an aryloxyphenoxypropionate herbicide, its acid, ester, or derivative, or a combination thereof; and comprises a sulfated surfactant, C 8-20 Surfactant blends of alkoxylated alcohols and sorbitol derivatives.

[0076] In one embodiment of the invention, the ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.5 to 1:10, or 1:0.9 to 1:5.

[0077] According to embodiments of the present invention, aryloxyphenoxypropionate herbicides, the acids, esters or derivatives thereof include cyhalofop-butyl, quizalofop-p-ethyl, pyrfluthrin, pyrfluthrin, oxychlorpyrifos, oxadiazon, quizalofop-p-ethyl ...

[0078] In one embodiment, the aryloxyphenoxypropionate herbicide, its acid, ester or derivative includes cyhalofop-butyl, oxadiazon-ethyl, quizalofop-P-butyl, quizalofop-methyl, quizalofop-P-methyl, oxadiazon, quizalofop-P-ethyl, quizalofop-P-tefuryl, or combinations thereof.

[0079] According to one embodiment, the emulsifiable concentrate composition comprises quizalofop-p-ethyl, succinate, or a combination thereof.

[0080] According to embodiments of the invention, the emulsifiable concentrate composition comprises, based on the total weight of the emulsifiable concentrate composition, about 0.1% w / w to about 70% w / w, or about 0.5% w / w to about 60% w / w, or about 1% w / w to about 50% w / w, or about 2% w / w to about 40% of an aryloxyphenoxypropionate herbicide, its acid, ester, derivative, or combination thereof.

[0081] According to embodiments of the invention, the emulsifiable concentrate composition comprises quizalofop-p-ethyl from about 0.1% w / w to about 70% w / w, or from about 0.5% w / w to about 60% w / w, or from about 1% w / w to about 40% w / w, or from about 2% w / w to about 30% w / w, or from about 4% w / w to about 10% w / w, based on the total weight of the emulsifiable concentrate composition.

[0082] According to one embodiment of the invention, the emulsifiable concentrate composition comprises a surfactant blend.

[0083] According to an embodiment of the present invention, the surfactant blend comprises a sulfated surfactant, C 8-20 Alkoxylated alcohols and sorbitol derivatives.

[0084] According to an embodiment of the present invention, the surfactant blend comprises a sulfated surfactant, C 8-20 Alkoxylated alcohols and sorbitol esters or ethoxylated sorbitol esters.

[0085] According to embodiments of the present invention, the sulfation surfactant includes benzenesulfonic acid, dodecyl sulfonate, dodecylbenzenesulfonic acid, dodecyl sulfate, and C. 13 / C 15 Alcohol ether sulfonates, dioctyl sulfosuccinate, isopropyl naphthalene sulfonate, methylene-bis-naphthalene sulfonate, their salts or combinations thereof.

[0086] According to embodiments of the present invention, the salt of the sulfated surfactant comprises, for example, sodium dodecyl sulfonate, sodium dodecyl sulfate, C 13 / C 15 Sodium alcohol ether sulfonate, sodium dioctyl succinate sulfonate, sodium isopropyl naphthalene sulfonate, sodium methylene-bis-naphthalene sulfonate, or combinations thereof.

[0087] In one embodiment, the sulfated surfactant is an anionic surfactant and is a salt of dodecylbenzenesulfonic acid (DDBS), such as a calcium, sodium, potassium, or amine salt.

[0088] In one embodiment, the sulfation surfactant is dodecylbenzenesulfonic acid.

[0089] In another embodiment, the sulfation surfactant is a calcium salt of dodecylbenzenesulfonic acid.

[0090] According to one embodiment, based on the total weight of the surfactant blend, the surfactant blend contains a sulfated surfactant from about 0.01% w / w to about 80% w / w, or from about 0.1% w / w to about 70% w / w.

[0091] According to one embodiment, the surfactant blend comprises from about 0.05% w / w to about 50% w / w of sulfated surfactant, based on the total weight of the surfactant blend.

[0092] According to one embodiment, based on the total weight of the surfactant blend, the surfactant blend contains a sulfated surfactant from about 0.01% w / w to about 40% w / w, or from about 0.1% w / w to about 30% w / w.

[0093] According to one embodiment, based on the total weight of the surfactant blend, the surfactant blend contains dodecylbenzenesulfonic acid or a salt thereof from about 0.1% w / w to about 30% w / w, or from about 1% w / w to about 20% w / w.

[0094] According to one embodiment, the surfactant blend comprises, by weight of about 1% w / w to about 20% w / w, a sulfated surfactant comprising dodecylbenzenesulfonic acid or a salt thereof.

[0095] According to an embodiment of the present invention, the surfactant blend comprises C 8-20 Alkoxylated alcohols.

[0096] According to an embodiment of the present invention, C 8-20 Alkoxylated alcohols include nonionic straight-chain or branched alcohol ethoxylated surfactants.

[0097] According to an embodiment of the present invention, C 8-20 Alkoxylated alcohols contain C 12-13 Ethoxylated alcohols;

[0098] C 16-18 ethoxylated propoxylated alcohols; C 10-14 , ethoxylated alcohol; C 10-16 ethoxylated alcohols;

[0099] C 12-15 , ethoxylated alcohol; C 14-18 , ethoxylated alcohol; C 12-14 ethoxylated propoxylated alcohols; C 12-15 Ethoxylated propoxylated alcohols; lauryl alcohol ethoxylate (C 12 -C 14 Ethoxylated alcohols; C 11-15 -Second-ethoxylated propoxylated alcohol; C 16-18 Saturation and C 18 -Unsaturated alkoxylated straight-chain alcohol alkoxylates (e.g., 1-5, 11 C5 molar straight-chain alcohol ethoxylates; 1-7, 11 carbons 7 moles), straight-chain alcohol ethoxylates, L12-6 (12 C6 moles, straight-chain alcohol ethoxylate), DDA6 (6 moles of branched alcohol ethoxylate), TDA6 (6 moles of tridecyl alcohol branched ethoxylate), OP-70 (7 moles of octylphenol ethoxylate), NP-6 (6 moles of nonylphenol alkoxylate), 5902 (16 moles of castor oil alkoxylated fatty acids), L24-5 (24 C5 molar straight-chain alcohol ethoxylated straight-chain alcohol). Alternatively, a product containing at least one of the aforementioned C... 8-20 Combinations of alkoxylated alcohols.

[0100] In one implementation, lauryl alcohol (C 12 -C 14 Ethoxylated alcohols are used as alkoxylated alcohols.

[0101] According to one embodiment, based on the total weight of the surfactant blend, the surfactant blend comprises C from about 0.01% w / w to about 50% w / w, or from about 0.1% w / w to about 40% w / w, or from about 0.5% w / w to about 30% w / w, or from about 1% w / w to about 20% w / w, or from about 5% w / w to about 20% w / w. 8-20 Alkoxylated alcohols.

[0102] According to one implementation, the surfactant blend comprises anhydrous sorbitol derivatives.

[0103] According to one implementation, the sorbitol derivative comprises sorbitol ester, ethoxylated sorbitol ester, or a combination thereof.

[0104] According to embodiments of the present invention, sorbitol esters comprise, but are not limited to, sorbitol monostearate (Span 60), sorbitol tristearate (Span 80), sorbitol monolaurate (Span 20), or combinations thereof.

[0105] According to embodiments of the present invention, the sorbitol derivative comprises an ethoxylated sorbitol ester synthesized by adding ethylene oxide to the sorbitol ester via polymerization, and is referred to as a polysorbate ester and / or

[0106] According to an embodiment of the present invention, ethoxylated dehydrated sorbitol ester comprises polysorbate 20 ( 20) Polysorbate 60 ( 60), Polysorbate 65 ( 65), Polysorbate 80 ( 80), or a combination thereof.

[0107] According to one embodiment of the present invention, ethoxylated dehydrated sorbitol ester is polysorbate 80 (… 80).

[0108] According to an embodiment of the invention, based on the total weight of the surfactant blend, the surfactant blend comprises a dehydrated sorbitol derivative from about 0.01% w / w to about 50% w / w, or from about 0.1% w / w to about 40% w / w, or from about 0.5% w / w to about 30% w / w, or from about 1% w / w to about 20% w / w, or from about 1% w / w to about 10% w / w.

[0109] According to one embodiment, the weight ratio of the aryloxyphenoxypropionate herbicide and surfactant blend is 1:0.5 to 1:10.

[0110] According to one embodiment, the weight ratio of the aryloxyphenoxypropionate herbicide and surfactant blend is from 1:0.9 to 1:5.

[0111] According to one embodiment, the aryloxyphenoxypropionate herbicide and the surfactant are blended in a 1:1, 1:3, or 1:4 ratio.

[0112] According to one embodiment, the EC composition may further contain a solvent.

[0113] According to one implementation, the solvent includes a nonpolar water-immiscible solvent, a polar aprotic water-miscible organic solvent, or a combination thereof.

[0114] According to one embodiment, the solvent comprises substituted or unsubstituted aromatic or aliphatic hydrocarbons, alkyl esters of vegetable oils, or combinations thereof.

[0115] According to one embodiment, the EC composition comprises a polar solvent. Polar solvents include, for example, N,N-dialkyl fatty acid amides, such as those found in the product, including, but not limited to, disubstituted amides (e.g., N,N-di-methyloctanamide, N,N-dimethylcarprylamide, N,N-dimethyldecanamide, and N,N-dimethylcapramide); by trade name M810 M10 ADMA810 ADMA 10 4166, and 4296 The compounds sold; cyclohexanone; diesters, such as, but not limited to, dimethyl 2-methylglutarate (in the form of...) IRIS obtained) and a mixture of diesters consisting of dimethyl glutarate, dimethyl succinate and dimethyl adipate (in) RPDE obtained); glycol ethers and polyalkylene diethylene glycol ethers, such as, but not limited to, dipropylene glycol methyl ether (which can be used as Dowanol). TM DPM obtained); alkylene carbonates, such as, but not limited to, propylene carbonate (which can be used as...). AG 1555 obtained; methyl-5-(dimethylamino)-2-methyl-5-oxovalerate (can be used as...) (obtained by Polarclean); ketones, such as, but not limited to, cyclopentanone and cyclohexanone. Combinations containing at least one of the above may also be used.

[0116] Water-miscible polar aprotic solvents include, for example, alkyl lactate, isopropyl lactate, alkyl carbonate, polyethylene glycol, polyethylene glycol alkyl ether, monopropylene glycol, polypropylene glycol, polypropylene glycol alkyl ether, or combinations thereof.

[0117] According to one embodiment, the solvent in the EC composition is a fatty acid ester solvent, such as C424 prepared from vegetable oil. 6-C14 Fatty acid esters. Examples of fatty acid esters include... C-25 methyl ester, C-40 methyl ester, 653 or IPM (all purchased from Stepan); or 2301 2307 2308 2309 (both purchased from Witco), ethyl hexanoate purchased from Sigma-Aldrich, or ME C6-C10 ME C12 98 / 100 SH (purchased from Cognis or Tegosoft MM) and SH (purchased from Goldschmidt), or CE-1095 (methyl decanoate) purchased from P&G, and Cognis. and Those ME series products, such as ME 610G(C 8-10 Caprylic-decanoate), ME890 e ME 1298 and ME 12C-F. A combination containing at least one of the above can also be used.

[0118] According to one embodiment, the solvent in the EC composition comprises an aromatic hydrocarbon derived from benzene, such as toluene, xylene, mesitylene, diisopropylbenzene and its higher homologues, indene, and naphthalene derivatives, such as 1-methylnaphthalene and 2-methylnaphthalene; C5-C12 Aliphatic hydrocarbons (straight-chain, branched, or cyclic), such as pentane, hexane, cyclohexane, octane, 2-ethylhexane, and decane; C5-C 10 Aliphatic alcohols (straight-chain or branched), especially C6-C9 aliphatic alcohols, such as hexanol, 2-ethylbutanol, heptanol, octanol, 2-octanol, and 2-ethylhexanol; or aromatic alcohols such as benzyl alcohol. Combinations containing at least one of the above may also be used.

[0119] According to one embodiment, the solvent in the EC composition includes mineral oils such as Bayol, Bemol, American, Blandol (white mineral oil), Drakeol, Ervol, Gloria, Kaydol, Litetek, Marcol, Parol, Peneteck, Primol, Protol, Sontex, or combinations thereof.

[0120] According to one embodiment, the solvent contains C5-C 20 C1-C4 alkyl esters (preferably methyl esters) of saturated or unsaturated fatty acids, or mixtures of such esters from vegetable oils, including but not limited to methyl, ethyl, and butyl esters of canola (B. napus), flaxseed, safflower (Carthamus tinctorius L.), soybean, and sunflower oils. Combinations containing at least one of the above may also be used.

[0121] According to one embodiment, the solvent in the EC composition comprises C5-C 20 Methyl esters or C5-C fatty acids 20 Combinations of methyl esters of fatty acids.

[0122] According to one embodiment, the solvent contains C 16-18 Unsaturated fatty acid methyl esters and C 18 - A mixture of unsaturated fatty acid methyl esters.

[0123] According to one embodiment, the solvent comprises a water-miscible polar aprotic solvent containing lactic acid C1-C2. 10 Alkyl esters, isopropyl lactate, C1-C carbonate 10 Alkyl esters, polyethylene glycol, polyethylene glycol C1-C 10- - Alkyl ethers, monopropylene glycol, polypropylene glycol, polypropylene glycol alkyl ethers, or combinations thereof.

[0124] According to embodiments of the invention, based on the total weight of the emulsifiable concentrate composition, the EC composition contains about 1% w / w to about 99% w / w, or about 10% w / w to about 90% w / w, or about 30% w / w to about 80% w / w of solvent.

[0125] According to one embodiment, the EC composition further comprises a herbicide.

[0126] According to one implementation plan, the herbicide comprises: 4-CPA; 4-CPB; 4-CPP; 2,4-D; 2,4-D choline salt, 2,4-D ester and amine; 2,4-DB; 3,4-DA; 3,4-DB; 2,4-DEB; 2,4-DEP; 3,4-DP; 2,3,6-TBA; 2,4,5-T; 2,4,5-TB; acetochlor, acifluorfen, aclofen, acrolein, alachlor, and allidochlor. Herbicides include alloxydim, allyl alcohol, alarac, ametridone, ametryn, amibuzin, amicabazone, amidosulfuron, aminocyclopyrachlor, aminopyralid, amiprofos-methyl, amitrol, and ammonium sulfate. sulfamate), ailofos, anisuron, asulam, atraton, atrazine, azafenidin, azimsulfuron, aziprotryne, barban, BCPC, beflubutamid, benzolin, bencarbazone, benfluralin, benfuresate, bensulfuron-methyl, bensulide, bet... azone, betamethrin (benzadox), benzfendizone, benzzipram, benzobicyclon, benzofenap, benzofluor, benzoylprop, benzthiazuron, bialaphos, bicylopyrone, bifenox, bilanafos, bispyribac-sodium, borax, bromacil, bromobonilBromobutide, bromofenoxim, bromoxynil, brompyrazon, butachlor, butafenacil, butamifos, butenachlor, buthidazole, buthiuron, butralin, butroxydim, buturon, butylate, and cacodylic acid. (The remaining text appears to be a list of herbicides and their properties, which are not translated as they are not part of the main text.) (on), chlornitrofen, chloropon, chlorotoluron, chloroxuron, chloroxynil, chlorpropham, chlorsulfuron, chlorthal, chlorthiamid, cinidon-ethyl, cinmethylin, cinosulfuron, cisanilide, clethodim, cliodinate, cromzone, comeprop, cloprop, cloproxydim, clopyralid, CMA, copper sulfate, CPMF, CPPC, credazine, cresol,cumyluron, cyanatryn, cyanazine, cycloate, cyclopyrimorate, cyclosulfamuron, cycloxydim, cycluron, cyperquat, cyprazine, cyprazole, cypromid, daimuron, dalapon, dazomet, delachlor, betaine (desmedipham), desmetryn, di-allate, dicamba, dichlobenil, dichloralurea, dichlormate, dichlorprop, dichlorprop-P, diethamquat, diethatyl, difenopenten, difenoxuron, difenzoquat, diflufenican, flupyridine iflufenzopyr, dimefuron, dimepiperate, dimethachlor, dimethametryn, dimethenamid, dimethenamid-P, dimexano, dimidazon, diinitramine, dinofenate, dinoprop, dinosam, dioseb, dinoterb, diphe Namid, Dipropetryn, Diquat, Disul, Dithiopyr, Diuron, DMPA, DNOC, DSMA, EBEP, Eglizozine, Endothal, Eperonaz, EPTC, Erbon, Esprocarb, Ethalfluralin, Ethbenzamide, Ethametsulfuron, EthidimuronHerbicides including ethiolate, ethobenzamid, etobenzamid, ethofumesate, ethoxyfen, ethoxysulfuron, etinofen, etnipromid, etobenzanid, EXD, fenasulam, fenoprop, fenoxaprop, fenoxaprop-P-ethyl, and fenoxaprop-P-ethyl + fenoxaprop-ethyl. xaprop-P-ethyl+isoxadifen-ethyl), fenoxasulfone, fenteracol, fenthiaprop, fentrazamide, fenuron, ferrous sulfate, flamprop, flamprop-M, flazasulfuron, fluazolate, flucarbazone, flucetosulfuron, fluchloralin, fluthiamethoxam ( flufenacet, flufenican, flufenpyr-ethyl, flumezin, flumiclorac-pentyl, flumioxazin, flumipropyn, fluometuron, fluorodifen, fluoroglycofen, fluoromidine, fluoronitrofen, fluothiuron, flupoxam, flup ropacil, flupropanate, flupyrsulfuron, fluridone, fluorochloridone, fluoroxypyr, fluoroxypyr-meptyl, flurtamone, fluthiacet, fomesafen, foramsulfuron, fosamine, fumiclorac, furyloxyfenGlyphosate, glufosinate-ammonium, glufosinate-P-ammonium, glyphosate salts and esters, halauxfen, halauxfen-methyl, halosafen, halosulfuron-methyl, haloxydine, hexachloroacetone, hexafluoroacetate, hexazinone, imazamethabenz, imazamox, methyl imazamethabenz Imazapic, Imazapyr, Imazaquin, Imazosulfuron, Cloransulam-methyl, Indanofan, Indaziflam, Iodobonil, Iodosulfuron, Iodosulfuron-ethyl-sodium, Iofensulfuron, Ioxynil, Ipazine, Ifencarbazone (ipfencarbazone), iprymidam, isocarbamid, isocill, isomethiozin, isoruron, isopolinate, isopropalin, isoproturon, isouron, isoxaben, isoxachlortole, isoxaflutole, karbutilate, ketospiradox, quizalofop-p-ethyl (lactofen), lenacil, linuron, MAA, MAMA, MCPA esters and amines, MCPA-thioethyl, MCPB, mecoprop, mecoprop-P, medinoterb, mefenacet, mefluidide, mesoprazine, mesosulfuron, mesotrione, metam, metamitronMetachlor, Metazosulfuron, Metflurazon, Metabenzthiazuron, Metalpropalin, Metazole, Metiuron, Metiuron, Metometon, Metoprotryne, Methyl bromide, Methyl dymron, Metobenzuron, Metobromuron, Metolachlor, Metoxauron, Metribuzin, Metsulfuron, Metsulfuron-methyl, Molinate, Monalide, Monisouron, Chloroacetic acid, Monolinuron, Monuron, Morf amquat), MSMA, naproanilide, napropamide, naptalam, neburon, nicosulfuron, nipyraclofen, nitralin, nitrofen, nitrofluorfen, norflurazon, noruron, OCH, orbencarb, o-dichlorobenzene, pyrimethanil (orthosulfamuron), oryzalin, oxadiargyl, oxadiazon, oxapyrazon, oxasulfuron, oxaziclomefone, oxyfluorfen, parafluoron-ethyl, parafluoron, paraquat, pebulate, pelargonic acid, pendimethalin, pentachlorophenol, pentamolechlor, pentoxazone, perfluidone, pethoxamidPhenisopham, phenmedipham, phenmedipham-ethyl, phenobenzuron, phenylmercuric acetate, picloram, picolinafen, pinoxaden, piperophos, potassium arsenite, potassium azide, potassium cyanate, pretilachlor, primisulfuron-methyl, procyazine, prodiamine Profluazol, profluralin, profoxydim, proglinazine, calcium cyclohexane, prometon, prometryn, pronamide, propachlor, propanil, propazine, propham, propisochlor, propoxycarbazone, propyrisulfuron, and pronamide. opyzamide, prosulfalin, prosulfocarb, prosulfuron, proxan, prynachlor, pydanon, pyraclonil, pyraflufen-ethyl, pyrasulfotole, pyrazogyl, pyrazolynate, pyrazosulfuron-ethyl, pyrazoxyfen, pyrazoxime (p yribenzoxim), pyributicarb, pyriclor, pyridafol, pyridate, pyriftalid, pyriminobac, pyrimisulfan, pyrithiobac-sodium, pyroxasulfone, quinclorac, quinmerac, quinoclamine, quinonamid, rhodethanilRimsulfuron, saflufenacil, S-metolachlor, sebuthylazine, secbumeton, sethoxydim, siduron, simazine, simeton, simetryn, SMA, sodium arsenite, sodium azide, sodium chlorate, sulcotrione, sulfallate, methimsulfuron (sulfometuron), sulfonates, sulfosulfuron, sulfuric acid, sulglycapin, swep, SYN-523, TCA, tebutam, tebuthiuron, tefuryltrione, tembotrione, tepraloxydim, terbacil, terbucarb, terbuchlor, terbumet (on), terbuthylazine, terbutryn, tetrafluoron, thenylchlor, thiazafluoron, thiazopyr, thidiazimin, thidiazuron, thiencarbazone-methyl, thifensulfuron, thifensulfurn-methyl, grass Thiobencarb, tiocarbazil, tioclorim, toramezone, tralkoxydim, triafamone, triallate, triasulfuron, triaziflam, tribenuron, tribenuron-methyl, tricamba, trilopyr choline salt, tridiphane, trietazine, trifloxysulfuron, trifluralin, triflusulfuronTrifopsime, trihydroxytriazine, trimeturon, tripropindan, tritac, tritosulfuron, vernolate, xylachlor, and their salts, esters, optically active isomers, or combinations thereof.

[0127] According to one embodiment, the EC composition further comprises herbicides such as amicarabazone, flucarbazone, fomesafen, napropamide, napropamide-M, diflufenican, flufenacet, propanil, and sulfentrazone; and chloroacetanilide herbicides such as acetochlor, alachlor, butachlor, metazachlor, and metolachlor. Herbicides include: chlor, metolachlor, pretilachlor, propachlor; sulfonamide herbicides, such as cloransulam, diclosulam, florasulam, flumetsulam; sulfonamide herbicides, such as asulam, carbasulam, penoxsulam, pyroxsulam; benzoic acid herbicides, such as dicamba; and pyrimidinoxybenzoic acid herbicides, such as bispyribac-sodium. Herbicides such as yribac and pyriminobac; pyridine acid herbicides such as aminopyralid, clopyralid, florpyrauxifen, halauxifen, and picloram; quinoline carboxylic acid herbicides such as quinclorac and quinmerac; arylcyclohexanedione herbicides such as mesotrione, sulcotrione, and tembotrione; and cyclohexene oxime herbicides such as clethodim and cyclotrione. Loxydim; dinitroaniline herbicides, such as pendimethalin; nitrophenyl ether herbicides, such as acifluorfen, fomesafen, halosafen, oxyfluorfen; organophosphorus herbicides, such as anilofos, glufosinate-ammonium, glufosinate-P-ammonium, glyphosate salt; oxazole herbicides, such as clonazepam and toramezone;Pyrazole herbicides, such as halosulfuron, pyrazosulfuron, and pyroxasulfone; pyridine herbicides, such as diflufenican, halauxifen, picloram, and trilopyr; triazine herbicides, such as atrazine; triazinone herbicides, such as metamitron and metribuzin; triadimefon herbicides, such as ammonia... Amicabazone, bencarbazone, carfentrazone, flucarbazone, sulfentrazone; triazolopyrimidine herbicides, such as cloransulam, penoxsulam; phenyluracil herbicides, such as saflufenacil; pyrimidine sulfonylurea herbicides, such as bensulfuron, nicosulfuron, or combinations thereof.

[0128] According to one embodiment, the EC composition comprises one or more adjuvants selected from surfactants (emulsifiers), crop oils, fertilizers, dispersants, compatibilizers, foaming activators, defoaming agents, flavoring agents, and spray colorants (dyes).

[0129] According to one embodiment, based on the total weight of the EC composition, the EC composition contains about 0.1% to about 40% by weight, or about 0.5% to about 30% by weight, an adjuvant.

[0130] According to one embodiment, the EC composition comprises about 0.1% w / w to about 70% w / w of an aryloxyphenoxypropionate herbicide and about 0.01% w / w to about 60% w / w of a surfactant blend, wherein, based on the total weight of the EC composition, the surfactant blend comprises from about 0.01% w / w to about 50% w / w of a sulfated surfactant and from about 0.01% w / w to about 70% w / w of C 8-20 Alkoxylated alcohols, and sorbitol derivatives ranging from about 0.01% w / w to about 50% w / w.

[0131] According to one embodiment, the EC composition comprises an aryloxyphenoxypropionic acid herbicide from about 1% w / w to about 60% w / w and a surfactant blend from about 1% w / w to about 50% w / w, wherein, based on the total weight of the EC composition, the surfactant blend comprises a sulfated surfactant from about 1% w / w to about 50% w / w and a C40 ...8-20 Alkoxylated alcohols, and dehydrated sorbitol derivatives ranging from about 1% w / w to about 40% w / w.

[0132] According to an embodiment of the invention, the EC composition comprises an aryloxyphenoxypropionic acid herbicide from about 10% w / w to about 50% w / w and a surfactant blend from about 10% w / w to about 50% w / w, wherein, based on the total weight of the EC composition, the surfactant blend comprises a sulfated surfactant from about 10% w / w to about 50% w / w and a C40 surfactant from about 10% w / w to about 50% w / w. 8-20 Alkoxylated alcohols, and dehydrated sorbitol derivatives ranging from about 0.01% w / w to about 70% w / w.

[0133] According to one embodiment, a method for preparing an EC composition comprises:

[0134] An aryloxyphenoxypropionate herbicide, its acid, ester or derivative, or a combination thereof, is mixed with a solvent to prepare a first mixture;

[0135] A surfactant blend is added to the first mixture to obtain a second mixture, wherein the surfactant blend comprises a sulfated surfactant, C 8-20 Alkoxylated alcohols and sorbitol derivatives; and

[0136] The second mixture is ground to obtain an emulsifiable concentrate composition.

[0137] The weight ratio of the α-oxyphenoxypropionate herbicide to the surfactant blend is 1:0.9 to 1:5.

[0138] According to one embodiment, a method for preparing an EC composition comprises:

[0139] Sugar oxalicum ester, solvent, and a surfactant containing sulfated surfactant, C 8-20 A first mixture is prepared by mixing a surfactant blend of an alkoxylated alcohol and a dehydrated sorbitol derivative;

[0140] Stirring the first mixture to prepare an emulsifiable concentrate composition; and

[0141] The resulting emulsifiable concentrate composition is packaged.

[0142] According to one embodiment, the method further comprises heating the aryloxyphenoxypropionate herbicide, its salt, ester, or derivative at a temperature above the melting point of the aryloxyphenoxypropionate herbicide, its salt, ester, or derivative to liquefy the aryloxyphenoxypropionate herbicide, its salt, ester, or derivative, and then mixing it with a solvent.

[0143] According to one embodiment, quizalofop-P-ethyl, its acid, ester and / or derivative are first heated at a temperature greater than 60°C to liquefy quizalofop-P-ethyl and / or its acid, ester or derivative, and then mixed with a solvent.

[0144] According to one embodiment, the method for preparing the EC composition employs a continuously heated mixing vessel to avoid the curing of the aryloxyphenoxypropionate herbicide, its acid, ester and derivatives.

[0145] According to one implementation, by mixing a sulfated surfactant and C under low shear conditions... 8-20 Surfactant blends were obtained from alkoxylated alcohols and dehydrated sorbitol derivatives.

[0146] According to one implementation, by applying a sulfated surfactant, C under low shear conditions... 8-20 Surfactant blends are obtained by dissolving alkoxylated alcohols and dehydrated sorbitol derivatives in solvents.

[0147] According to another embodiment, a method for controlling unwanted vegetation includes contacting the unwanted vegetation or its location with a herbicide-effective amount of an EC composition, wherein the EC composition comprises:

[0148] Aryloxyphenoxypropionate herbicides, their acids, esters or derivatives, or combinations thereof; and

[0149] Includes sulfated surfactants, C 8-20 Surfactant blends of alkoxylated alcohols and dehydrated sorbitol derivatives;

[0150] The ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.9 to 1:5, or 1:0.9 to 1:5.

[0151] The final formulation can be prepared by diluting the EC composition with water to a dilution of about 1 to about 10,000 or about 10 to about 1,000 of the total weight of the EC composition to form a spray formulation. The EC composition is diluted to provide a spray formulation having an agricultural chemical activity concentration of about 0.1 wt% to about 10 wt%.

[0152] According to another embodiment, a method for controlling unwanted vegetation includes contacting a herbicidal amount of the EC composition with the vegetation or its site, wherein the emulsifiable concentrate composition comprises:

[0153] Sugar-coated oxaliplatin; and

[0154] Includes sulfated surfactants, C 8-20 Surfactant blends of alkoxylated alcohols and dehydrated sorbitol derivatives;

[0155] The ratio of sucralose to surfactant blends is in the range of 1:0.9 to 1:5.

[0156] The present invention also provides the use of the disclosed herbicidal composition as a herbicide.

[0157] According to one embodiment, the EC composition is used to control a wide range of undesirable vegetation, specifically, a wide range of weeds.

[0158] According to one implementation scheme, the EC composition is used to control broad-spectrum annual and perennial weeds.

[0159] According to one embodiment, the EC composition is formulated for use by dilution with water or an aqueous liquid to form an end-use agricultural chemical formulation, such as a spray formulation.

[0160] According to one embodiment, the EC composition has a pH of 5-7 or a pH of 5.5 to 6.8.

[0161] According to one embodiment, the EC composition exhibits a pH change of no more than 20% after being stored at 54°C for 24 hours to 28 days.

[0162] According to one embodiment, the EC composition is applied in a form that allows the active compound to be absorbed by the plant.

[0163] According to one embodiment, the EC composition is a source of active agricultural chemicals and is diluted to form a final-use formulation, such as a spray formulation. The final-use formulation can be prepared by diluting the EC composition with water to a dilution of about 1 to about 10,000, or about 10 to about 1,000, of the total weight of the EC composition, to form a spray formulation. The EC composition is diluted to provide a spray formulation having an agricultural chemical activity concentration of about 0.5 wt% to about 1 wt%. In the diluted composition, based on the total spray formulation, the concentration of the agricultural chemical active substance can be about 0.001 wt.% to about 1 wt%.

[0164] A spray formulation comprises all components intended for application to a plant or its site. Spray formulations can be prepared by simply diluting an EC composition containing these agrochemically active ingredients, by mixing these individual agrochemically active ingredients together, or by diluting the EC composition and adding additional individual agrochemically active ingredients or mixtures of agrochemically active ingredients. Typically, this end-use mixing takes place in the spray formulation can or in a storage tank that fills the spray can. Such mixing and blending are commonly referred to as can-to-can mixing and can-to-mixing.

[0165] According to one embodiment, the various components of the EC composition are used individually or have been partially or completely mixed with each other to prepare an emulsifiable concentrate composition. The components can also be packaged separately and used as components in a kit.

[0166] In one embodiment, the kit may include one or more components for preparing the EC composition. For example, the kit may include blends of active ingredients and / or surfactants. One or more components may have been pre-formulated or already combined together.

[0167] According to embodiments of the present invention, a kit comprising a stable agricultural chemical composition is provided. The kit comprises multiple components, including at least one component of the stable herbicidal composition of the present invention.

[0168] In one embodiment of the invention, the kit includes at least one or all of the components required to prepare a stable herbicide composition. For example, the kit may include aryloxyphenoxypropionate herbicides, their acids, esters, or derivatives, or combinations thereof; and include sulfated surfactants, C... 8-20 Surfactant blends of alkoxylated alcohols and sorbitol derivatives.

[0169] One or more components may have been combined together or pre-formulated. In those embodiments where more than two components are provided in the kit, the components may have been combined and packaged as is in individual containers such as vials, bottles, jars, pouches, bags and / or cans.

[0170] In other embodiments, the two or more components of the kit may be packaged separately from each other, i.e., they are not pre-formulated. Therefore, the kit may include one or more individual containers, such as vials, cans, bottles, pouches, bags, and / or jars, each containing a separate component of the stabilized herbicide composition.

[0171] In both forms, individual components of a kit can be applied separately or together with other components of the kit, or as components of a combined composition.

[0172] The compositions described herein are herbicidal and stable. It has been found that the disclosed surfactant blends provide excellent stability of the aryloxyphenoxypropionate herbicides over time and at a variety of temperatures, even when the EC compositions are subjected to shear forces (e.g., during mixing). Furthermore, the stable agrochemical compositions obtained by the disclosed methods exhibit excellent suspendability, better acclimation, minimal or no sedimentation, and minimal particle degradation.

[0173] All features described herein can be combined with any of the foregoing aspects in any combination. For a more readily understood understanding of the invention, reference will now be made to the following description by way of example. However, the scope of the invention is not limited in any way to the embodiments. Those skilled in the art will understand that the invention includes the above-described embodiments and can be further modified and changed within the scope of the invention. It should be understood that, unless otherwise stated herein or unless otherwise described in the referenced test methods and procedures, all tests and physical properties listed are measured at atmospheric pressure and room temperature (i.e., 25°C).

[0174] It should be understood that the specification and embodiments are illustrative rather than restrictive of the invention, and other embodiments within the spirit and scope of the invention will be apparent to those skilled in the art. Other embodiments within the scope of the invention may also be practiced. The following embodiments illustrate the invention but are in no way intended to limit the scope of the claims.

[0175] Example

[0176] The present invention will be described with reference to the following embodiments:

[0177] Example 1: Preparation of 40 g / L emulsifiable concentrate (EC) of sucralose.

[0178] The materials in Table 1 were used to prepare the herbicide composition of Example 1.

[0179] Table 1

[0180] Element Quantity (g / L) Sugargrass 41.49 <![CDATA[C 8-10 Methyl octanoate-decanoate 254.6 White mineral oil 359.9 Calcium dodecylbenzenesulfonate (CaDDBS) 28 Lauryl alcohol ethoxylate 88 Polyoxyethylene dehydrated sorbitan monooleate 44 Monopropylene glycol 10 Diester solvent 80 silicone 0.025 total 906.02

[0181] 41.49 g of sucralose was first melted, and then mixed with 254.6 g of solvent C in a mixing container. 8-10 Methyl octanoate-decanoate mixture. A surfactant blend was prepared by mixing 88 g of lauryl ethoxylate, 28 g of CaDDBS, and 44 g of polyoxyethylene sorbitan monooleate under low shear and adding the mixture to a container. Under low shear stirring, 359.9 g of white mineral oil, 10 g of monopropylene glycol, 80 g of diester solvent, and 0.025 g of silicone as an antifoaming agent were added to the same mixing container to obtain a homogeneous mixture. The mixture was continuously stirred in the mixing container for 2 hours to obtain the final emulsifiable concentrate composition.

[0182] Example 2: Preparation of 40 g / L emulsifiable concentrate (EC) of sucralose.

[0183] The materials in Table 2 were used to prepare the herbicide composition of Example 2.

[0184] Table 2

[0185] Element Quantity (g / L) Sugar-coated ester (technically 96.4%) 41.49 <![CDATA[C 8-10 Methyl octanoate-decanoate 257.6 White mineral oil 359.9 CaDDBS 48.0 Lauryl alcohol ethoxylate 64.0 Polyoxyethylene dehydrated sorbitan monooleate 48.0 Monopropylene glycol 10 Diester solvent 80 silicone 0.025 total 909.0

[0186] Following the method of Example 1, sucralose was added in the amounts shown in Table 2, C 8-10 A methyl octanoate-decanoate solvent, a surfactant blend comprising lauryl ethoxylate, CaDDBS and polyoxyethylene dehydrated sorbitan monooleate, white mineral oil, monopropylene glycol, a diester solvent and silicone as an antifoaming agent, are used to obtain an emulsifiable concentrate composition.

[0187] Example 3: Preparation of 40 g / L emulsifiable concentrate (EC) of sucralose.

[0188] The materials in Table 3 were used to prepare the herbicide composition of Example 3.

[0189] Table 3

[0190] Element Quantity (g / L) Sugar-coated ester (technically 96.4%) 41.49 <![CDATA[C 8-10 Methyl octanoate-decanoate 257.6 White mineral oil 359.9 CaDDBS 16.0 Lauryl alcohol ethoxylate 112.0 Polyoxyethylene dehydrated sorbitan monooleate 32.0 Monopropylene glycol 10 Diester solvent 80 silicone 0.025 total 909.0

[0191] Following the method of Example 1, add sucralose in the amounts shown in Table 3, C 8-10 A methyl octanoate-decanoate solvent, a surfactant blend comprising lauryl ethoxylate, CaDDBS and polyoxyethylene dehydrated sorbitan monooleate, white mineral oil, monopropylene glycol, a diester solvent and silicone as an antifoaming agent, are used to obtain an emulsifiable concentrate composition.

[0192] Example 4: Surfactant screening study.

[0193] Before obtaining robust surfactant blends that contribute to emulsion stability at room temperature and also provide low-temperature stability, various anionic and nonionic surfactants were tested individually and in various combinations. After determining the optimal weight ratio of active ingredient to surfactant blend, various anionic and nonionic surfactants were tested to evaluate their effects on the final emulsion.

[0194] This invention provides the basic principles for selecting surfactants used in herbicide compositions. This example provides a comparative analysis of the emulsion stability of the composition of Example 1 and comparative compositions designated A, B, C, D, and E, each composed of different surfactants. To prepare formulations A, B, C, D, and E, the components of Example 1, except for the surfactant blends, were kept identical, and the optimal ratio of herbicide to surfactant blend was determined. The compositions used for comparing emulsion stability were developed by keeping the components of Example 1 constant and combining various surfactants in optimal proportions.

[0195] When developing compositions, the proportions of each surfactant are determined, and these proportions are used to provide combinations of surfactants. As shown in Table 4, when used alone, the sulfated surfactant, C... 8-20Ethoxylated alcohols or sorbitol esters failed to achieve the desired emulsion stability. Various other surfactants, such as phosphate esters, ethoxylated vegetable oils, and polyalkylene glycol ethers, were also tried; however, these surfactants also failed to stabilize emulsions containing sorbitol esters (Table 4). Emulsion stability was tested at 30°C.

[0196] Table 4: Surfactant Screening

[0197]

[0198] The term "good" describes the emulsion appearance of the composition and indicates the absence of phase separation.

[0199] Example 5: Stability of formulations containing sucralose and stability of products upon dilution.

[0200] The EC composition of Example 1 was prepared as described above, and the finished EC composition was visually inspected. The finished EC composition of Example 1 appeared as a uniform, pale yellow, clear (transparent) liquid. After storage at -10°C for 7 days, the EC composition was found to contain approximately 0.05% sediment, and became a uniform, clear liquid upon gentle shaking. After storage at 54°C for 14 days, the composition remained a pale yellow, clear liquid with trace amounts of turbid sediment and became a uniform, clear liquid upon gentle shaking (Table 5).

[0201] Table 5

[0202]

[0203] The EC composition of Example-1 was prepared as described above, and the stability of sucralose in the EC composition and the stability of the diluted emulsion were evaluated.

[0204] The EC composition of Example-1 was found to remain stable under ambient conditions for 0 days after preparation, i.e., immediately after preparation. The stability of the EC composition was also evaluated after 14 days of storage under accelerated thermal stability (AHS) conditions (54°C) and low temperature conditions (-10°C). As shown in Table 6, the degradation of sucralose under both AHS and low temperature conditions was within acceptable limits.

[0205] The stability of the diluted emulsion was also investigated. Three different dilutions of the composition of Example-1 were prepared in water: 0.1% v / v, 2% v / v, and 2.4% v / v. The composition of Example-1 remained stable in all three dilutions after 1 hour and 24 hours of dilution. Emulsion stratification remained under control, i.e., less than 1 ml, after both 1 hour and 24 hours. This infers high stability of the emulsion at end-use. A slight pH change was observed in the composition of Example-1 after storage under AHS conditions, but it was within acceptable limits (Table-6).

[0206] Table 6

[0207]

[0208] *SHW = Standard hard water.

[0209] The term "good" describes the emulsion appearance of a composition with optical transparency and indicates a uniform, transparent / clear liquid without any phase separation.

[0210] Therefore, the inventors used a surfactant containing sulfated surfactant, C 8-20 Surfactant blends of alkoxylated alcohols and sorbitol derivatives have been successfully developed to create stable, emulsifiable concentrate compositions containing aryloxyphenoxypropionic acid herbicides, wherein the ratio of the aryloxyphenoxypropionic acid herbicide to the surfactant blend is maintained in a defined proportion. Specifically, the surfactant blends successfully stabilize the aryloxyphenoxypropionic acid herbicide, sucralose, in the composition. Furthermore, the surfactant blends also impart stability to the diluted emulsion for final use.

[0211] It should be understood that the present invention is not limited to the details of the above embodiments, which are described by way of example only.

Claims

1. A stable herbicide composition comprising: Aryloxyphenoxypropionate herbicides, their acids or esters, or combinations thereof, wherein said aryloxyphenoxypropionate herbicides are quizalofop-P-ethyl; and Includes surfactants A and C 8-20 A surfactant blend of alkoxylated alcohols and dehydrated sorbitol derivatives, wherein surfactant A is benzenesulfonic acid, dodecylbenzenesulfonic acid, dodecyl sulfonate, dodecyl sulfate, or C. 13 / C 15 Alcohol ether sulfonates, dioctyl sulfosuccinate, isopropyl naphthalene sulfonate, methylene bisnaphthalene sulfonate, their salts or combinations thereof, wherein the sorbitol derivative comprises sorbitol esters, ethoxylated sorbitol esters, or combinations thereof; The weight ratio of the aryloxyphenoxypropionate herbicide to the surfactant blend is 1:0.5 to 1:

10.

2. The stable herbicide composition of claim 1, wherein the aryloxyphenoxypropionate herbicide or its ester comprises quizalofop-P-ethyl, quizalofop-P-tefuryl, or a combination thereof.

3. The stable herbicide composition of claim 1, wherein the surfactant A is a salt of dodecylbenzenesulfonic acid.

4. The stable herbicide composition of claim 1, wherein C 8-20 Alkoxylated alcohols include nonionic straight-chain or branched alcohol ethoxylated surfactants.

5. The stable herbicide composition of claim 1, wherein C 8-20 Alkoxylated alcohols contain C 10-16 Ethoxylated alcohols, C 14-18 Ethoxylated alcohols, C 12-15 Ethoxylated propoxylated alcohols, C 11-15 Secondary ethoxylated propoxylated alcohols, or combinations thereof.

6. The stable herbicide composition of claim 1, wherein C 8-20 Alkoxylated alcohols include lauryl alcohol ethoxylates, tridecyl alcohol branched alcohol ethoxylates, or combinations thereof.

7. The stable herbicide composition of claim 1, wherein the sorbitol ester comprises sorbitol monostearate, sorbitol tristearate, or a combination thereof, and the ethoxylated sorbitol ester comprises polysorbate 20, polysorbate 60, polysorbate 65, polysorbate 80, or a combination thereof.

8. The stable herbicide composition of claim 1, wherein, based on the total weight of the surfactant blend, the surfactant blend comprises 0.01% w / w to 50% w / w surfactant A and 0.01% w / w to 50% w / w surfactant C. 8-20 Alkoxylated alcohols, and 0.01% w / w to 50% w / w of sorbitol derivatives.

9. The stable herbicide composition of claim 8, wherein, based on the total weight of the surfactant blend, the surfactant blend comprises 1% w / w to 20% w / w surfactant A and 5% w / w to 20% w / w surfactant C. 8-20 Alkoxylated alcohols, and 1% w / w to 10% w / w sorbitol derivatives.

10. The stable herbicide composition of claim 1, wherein the composition is an emulsifiable concentrate.

11. The stable herbicide composition of claim 1, wherein the composition further comprises a solvent.

12. The stable herbicide composition of claim 11, wherein the solvent comprises N,N-dialkyl (C1-C2) 10 Fatty acid amides, diesters, glycol ethers C1-C 10 Alkyl carbonates, ketones, C1-C 10 Alkyl lactates, C1-C 10 Alkyl carbonates, polyethylene glycol, polyethylene glycol alkyl ethers, C containing vegetable oils 6- C 14 Fatty acid ester solvents, or combinations thereof.

13. The stable herbicide composition of claim 12, wherein the ketone is cyclohexanone.

14. The stable herbicide composition of claim 10, further comprising a solvent, wherein the solvent comprises an aromatic hydrocarbon, a mineral oil, or a combination thereof.

15. The stable herbicide composition of claim 1, wherein the weight ratio of the aryloxyphenoxypropionate herbicide or its acid or ester to the surfactant blend is 1:0.9-1:

5.

16. The stable herbicide composition of claim 1, wherein the weight ratio of the aryloxyphenoxypropionate herbicide or its acid or ester to the surfactant blend is 1:

4.

17. The stable herbicide composition of claim 10, wherein the surfactant blend comprises: a) Surfactant A, which is a salt of dodecylbenzenesulfonic acid. b) C containing lauryl ethoxylate 8-20 Alkoxylated alcohols, and c) Dehydrated sorbitol derivatives containing polyoxyethylene dehydrated sorbitan monooleate.

18. A method for preparing an emulsifiable concentrate composition, the method comprising: An aryloxyphenoxypropionate herbicide, or its acid or ester, or a combination thereof, is mixed with a solvent to prepare a first mixture, wherein the aryloxyphenoxypropionate herbicide is quizalofop-P-ethyl; A surfactant blend is added to the first mixture to obtain a second mixture, wherein the surfactant blend comprises surfactants A and C. 8-20 Alkoxylated alcohols and dehydrated sorbitol derivatives, wherein surfactant A is benzenesulfonic acid, dodecylbenzenesulfonic acid, dodecyl sulfonate, dodecyl sulfate, C 13 / C 15 Alcohol ether sulfonates, dioctyl sulfosuccinate, isopropyl naphthalene sulfonate, methylene bisnaphthalene sulfonate, their salts or combinations thereof, wherein the sorbitol derivative comprises sorbitol esters, ethoxylated sorbitol esters, or combinations thereof; and The second mixture is ground to obtain an emulsifiable concentrate composition. The weight ratio of the aryloxyphenoxypropionate herbicide or its acid or ester or combination thereof in the emulsifiable concentrate composition to the surfactant blend is 1:0.9 to 1:

5.

19. The method of claim 18, further comprising heating the aryloxyphenoxypropionate herbicide or its acid or ester or a combination thereof at a temperature above the melting point of the aryloxyphenoxypropionate herbicide or its acid or ester, to liquefy the aryloxyphenoxypropionate herbicide or its acid or ester, wherein the heating is performed prior to mixing with the solvent.

20. A method for controlling unwanted vegetation, comprising contacting said vegetation or its location with a herbicide-effective amount of an emulsifiable concentrate composition. The emulsifiable concentrate composition comprises: an aryloxyphenoxypropionate herbicide, or an acid or ester thereof, or a combination thereof, wherein the aryloxyphenoxypropionate herbicide is quizalofop-P-ethyl; and surfactants A and C. 8-20 A blend of surfactants for alkoxylated alcohols and dehydrated sorbitol derivatives, wherein surfactant A is benzenesulfonic acid, dodecylbenzenesulfonic acid, dodecyl sulfonate, dodecyl sulfate, or C. 13 / C 15 The herbicide comprises ether sulfonates, dioctyl sulfosuccinate, isopropyl naphthalene sulfonate, methylene bisnaphthalene sulfonate, salts thereof, or combinations thereof, wherein the sorbitol derivative comprises sorbitol esters, ethoxylated sorbitol esters, or combinations thereof, wherein the weight ratio of the aryloxyphenoxypropionate herbicide or its acid or ester or combination thereof to the surfactant blend is 1:0.5 to 1:

10.

21. The method of claim 20, wherein the emulsifiable concentrate composition comprises sucralose, and the weight ratio of the sucralose herbicide to the surfactant blend is from 1:0.9 to 1:5.

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