OA20077A - Herbicidal oil dispersion and method. - Google Patents
Herbicidal oil dispersion and method. Download PDFInfo
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- OA20077A OA20077A OA1202100109 OA20077A OA 20077 A OA20077 A OA 20077A OA 1202100109 OA1202100109 OA 1202100109 OA 20077 A OA20077 A OA 20077A
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- Prior art keywords
- composition
- salts
- sodium
- mcpa
- oil
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- 230000002363 herbicidal Effects 0.000 title claims abstract description 47
- 239000004533 oil dispersion Substances 0.000 title claims description 7
- 239000000203 mixture Substances 0.000 claims abstract description 89
- IDGRPSMONFWWEK-UHFFFAOYSA-N 2-ethylhexyl 2-(4-chloro-2-methylphenoxy)acetate Chemical group CCCCC(CC)COC(=O)COC1=CC=C(Cl)C=C1C IDGRPSMONFWWEK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000000969 carrier Substances 0.000 claims abstract description 11
- 241000196324 Embryophyta Species 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims description 38
- 239000004009 herbicide Substances 0.000 claims description 26
- 239000003995 emulsifying agent Substances 0.000 claims description 25
- 239000003921 oil Substances 0.000 claims description 13
- -1 polyoxyethylene Polymers 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 239000011780 sodium chloride Substances 0.000 claims description 12
- 238000009472 formulation Methods 0.000 claims description 11
- UOUXAYAIONPXDH-UHFFFAOYSA-M Flucarbazone-sodium Chemical compound [Na+].O=C1N(C)C(OC)=NN1C(=O)[N-]S(=O)(=O)C1=CC=CC=C1OC(F)(F)F UOUXAYAIONPXDH-UHFFFAOYSA-M 0.000 claims description 10
- COYBRKAVBMYYSF-UHFFFAOYSA-N heptan-2-yl 2-(5-chloroquinolin-8-yl)oxyacetate Chemical group C1=CN=C2C(OCC(=O)OC(C)CCCCC)=CC=C(Cl)C2=C1 COYBRKAVBMYYSF-UHFFFAOYSA-N 0.000 claims description 10
- OLZQTUCTGLHFTQ-UHFFFAOYSA-N octan-2-yl 2-(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxyacetate Chemical group CCCCCCC(C)OC(=O)COC1=NC(F)=C(Cl)C(N)=C1Cl OLZQTUCTGLHFTQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000006254 rheological additive Substances 0.000 claims description 10
- DQKWXTIYGWPGOO-UHFFFAOYSA-N (2,6-dibromo-4-cyanophenyl) octanoate Chemical compound CCCCCCCC(=O)OC1=C(Br)C=C(C#N)C=C1Br DQKWXTIYGWPGOO-UHFFFAOYSA-N 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- XUJLWPFSUCHPQL-UHFFFAOYSA-N 11-methyldodecan-1-ol Chemical class CC(C)CCCCCCCCCCO XUJLWPFSUCHPQL-UHFFFAOYSA-N 0.000 claims description 7
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 7
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 239000000600 sorbitol Substances 0.000 claims description 7
- APSBXTVYXVQYAB-UHFFFAOYSA-M Dioctyl sodium sulfosuccinate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 3
- 235000019438 castor oil Nutrition 0.000 claims description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- OXLXSOPFNVKUMU-UHFFFAOYSA-N 1,4-dioctoxy-1,4-dioxobutane-2-sulfonic acid Chemical class CCCCCCCCOC(=O)CC(S(O)(=O)=O)C(=O)OCCCCCCCC OXLXSOPFNVKUMU-UHFFFAOYSA-N 0.000 claims description 2
- WCOXQTXVACYMLM-UHFFFAOYSA-N 2,3-bis(12-hydroxyoctadecanoyloxy)propyl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCC(O)CCCCCC)COC(=O)CCCCCCCCCCC(O)CCCCCC WCOXQTXVACYMLM-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K Aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 206010053317 Hydrophobia Diseases 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L Magnesium hydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- JNYAEWCLZODPBN-CTQIIAAMSA-N Sorbitan Chemical compound OCC(O)C1OCC(O)[C@@H]1O JNYAEWCLZODPBN-CTQIIAAMSA-N 0.000 claims description 2
- HWKQNAWCHQMZHK-UHFFFAOYSA-N Trolnitrate Chemical compound [O-][N+](=O)OCCN(CCO[N+]([O-])=O)CCO[N+]([O-])=O HWKQNAWCHQMZHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 2
- 239000003945 anionic surfactant Substances 0.000 claims description 2
- 239000007798 antifreeze agent Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 claims description 2
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical class CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 claims description 2
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- 229910021485 fumed silica Inorganic materials 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- AUPJTDWZPFFCCP-GMFCBQQYSA-M sodium;2-[methyl-[(Z)-octadec-9-enyl]amino]ethanesulfonate Chemical class [Na+].CCCCCCCC\C=C/CCCCCCCCN(C)CCS([O-])(=O)=O AUPJTDWZPFFCCP-GMFCBQQYSA-M 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- YTSACTNRGUJEGO-UHFFFAOYSA-N CC=C.C1CO1 Chemical group CC=C.C1CO1 YTSACTNRGUJEGO-UHFFFAOYSA-N 0.000 claims 1
- 239000004480 active ingredient Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 description 7
- 238000000518 rheometry Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N oxo-oxoalumanyloxy-[oxo(oxoalumanyloxy)silyl]oxysilane;dihydrate Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 241001290610 Abildgaardia Species 0.000 description 2
- 241000209504 Poaceae Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000647 material safety data sheet Toxicity 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N oxane Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- UHZZMRAGKVHANO-UHFFFAOYSA-M 2-chloroethyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-L 2-sulfobutanedioate Chemical compound OS(=O)(=O)C(C([O-])=O)CC([O-])=O ULUAUXLGCMPNKK-UHFFFAOYSA-L 0.000 description 1
- 239000005489 Bromoxynil Substances 0.000 description 1
- UPMXNNIRAGDFEH-UHFFFAOYSA-N Bromoxynil Chemical compound OC1=C(Br)C=C(C#N)C=C1Br UPMXNNIRAGDFEH-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N C1CO1.CC1CO1 Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- 231100000230 acceptable toxicity Toxicity 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical compound CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Abstract
An herbicidal composition and method. An herbicidal composition including of one or more herbicidally active ingredients dissolved and/or suspended in an MCPA-2-ethylhexyl carrier, where the active ingredient carrier is otherwise oil and solvent free and the composition is chemically and physically stable. A method of preparing an herbicidal composition and a method of controlling weeds are also described.
Description
[001] This International Application claims the benefit of U.S. Provisional Application No. 62/729,747 filed September 11, 2018, the disclosure of which is expressly incorporated by reference herein in its entirety.
TECHNICAL FIELD
[002] The field of art to which this invention generally pertains is herbicidal compositions.
BACKGROUND
[003] Chemical and physical stability are constant challenges which can exist with herbicidal formulations, especially with some active Chemicals which are extremely effective individually, but can interact at various températures over time when they are combined with other materials.
[004] Accordingly, there is a constant search for enhancing the stability of effective herbicidal Chemical combinations.
BRIEF SUMMARY
[005] An herbicidal composition is described including one or more herbicidally active ingrédients dissolved and/or suspended in an MCPA-2- ethylhexyl active ingrédient carrier, wherein the active ingrédient carrier is otherwise oil and solvent free and the composition is chemically and physically stable.
[006] Additional embodiments include: the composition described above where the one or more active ingrédients comprise Flucarbazone Sodium, Cloquintocet Mexyl, Fluroxypyr Meptyl, and/or Bromoxynil Octanoate; the composition described above additionally containing one or more dispersants; the composition described above where the one or more dispersants comprise polymeric ester dispersants, polymer dispersants, and/or modified styrene acrylic copolymer dispersants; the composition described above additionally containing one or more emulsifiers; the composition described above where the one or more emulsifiers comprise polyoxyethylene sorbitol hexaoleate, ethoxylated isotridecanol, and/or sodium dioctyl sulphosuccinate; the composition described above additionally containing one or more rheology modifiers; the composition described above where the rheology modifiers comprise organoclay; the composition described above wherein the rheology modifier comprises
BENTONE® 1000; the composition described above where the composition demonstrates weed control on mulitple grasses, broadleaf weeds and sedge; the composition described above where the herbicidally active ingrédients are présent in an amount from about 2 percent to about 80 percent by weight of the composition; the composition described above where the dispersant is présent in a range of about 0.1 to about 20.0 percent by weight of the composition; the composition described above where the emulsifier includes one or more nonionic surfactants selected from the group consisting of fatty alcohol ethoxylates, tristyrylphenol ethoxylates, alkylphenolethoxylates, castor oil ethoxylates, fatty acid ethoxylates, alkylpolyglucosides, sorbitan ethoxylates, and ethylene oxide-
0 propylene oxide-ethylene oxide block copolymers; the composition described above where the emulsifier includes one or more anionic surfactants selected from the group consisting of salts of dodecylbenzenesulfonate, sodium dioctylsulfosuccinate, salts of tristyrylphenol ethoxylate phosphates, salts of fatty acids, salts of alkyl sulfates, salts of alkylether sulfates, salts of alkylether
5 phosphates, and sodium N-methyl-N- oleyltaurate; the composition described above where the emulsifier is présent in a range from about 0.1 to about 20 percent by weight; the composition described above where the rheology modifier is a hydrophobie fumed silica, bentonite, castor wax, magnésium stéarate, aluminum/magnesium hydroxide stéarate, or polymeric thickener, or combinations thereof; the composition described above where the composition comprises about 0.01 to about 10 percent by weight of the rheology modifier; the composition described above additionally containing one or more additives comprising an absorbent, an antifoaming agent, a stabilizer, an antifreeze agent, a base, an acid, and a buffer.
[007] A method of preparing an herbicidal composition is also described including combining one or more herbicidally active ingrédients in an MCPA- 2-ethylhexyl active ingrédient carrier, where the active ingrédient carrier is otherwise oil and solvent free.
[008] A method of controlling weeds is also described including diluting the herbicidal composition described above with water and applying the diluted herbicidal composition to one or more crops.
[009] Additional embodiments include: the method described above where the applying step is performed post-emergently after the one or more crops break ground; and the method described above where the applying step is performed pre-emergently before the one or more crops break ground.
[0010] These, and additional embodiments, are described below.
DETAILED DESCRIPTION
[0011] The particulars shown herein are by way of example and for purposes of illustrative discussion of the various embodiments of the présent invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show details of the invention in more detail than is necessary for a fundamental understanding of the invention, the description making apparent to those skilled in the art how the several forms of the invention may be embodied in practice
[0012] The présent invention will now be described by reference to more detailed embodiments. This invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and 5 complété, and will fully convey the scope of the invention to those skilled in the art.
[0013] Unless otherwise defined, ail technical and scientific terms used herein hâve the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the 10 invention herein is for describing particular embodiments only and is not intended to be limiting of the invention. As used in the description of the invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. Ail publications, patent applications, patents, and other references mentioned herein 15 are expressly incorporated by reference in their entirety.
[0014] Unless otherwise indicated, ail numbers expressing quantities of ingrédients, reaction conditions, and so forth used in the spécification and claims are to be understood as being modified in ail instances by the term “about.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in 2 0 the following spécification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the présent invention. At the very least, and not as an attempt to limit the application of the doctrine of équivalents to the scope of the claims, each numerical parameter should be construed in light of the number of signifîcant digits and ordinary rounding 2 5 approaches.
[0015] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the spécifie examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard déviation found in their respective testing measurements. Every numerical range given throughout this spécification will include every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were ail expressly written herein.
[0016] Additional advantages of the invention will be set forth in part in the description which foilows, and in part will be obvious from the description, or may be leamed by practice of the invention. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
[0017] What is described herein is an effective herbicidal composition against a broad weed spectrum, having Chemical stability of ail of active ingrédients. 2ethylhexyl 2-(4-chloro-2-methylphenoxy) acetate (MCPA-2- ethylhexyl) is a common herbicide used in agricultural formulations. As described herein, this formulation can be used as an oil dispersion (OD), even though it contains no 15 typical solvent or oil. Instead the MCPA-2-ethylhexyl herbicide is used at the solvent/oil itself.
[0018] Using the MCPA-2-ethylhexyl as the solvent/oil allows it to be combined with various dispersants to disperse the various active ingrédient particles in the oil phase such that they don't agglomerate or settle. Typically multiple dispersants are 2 0 used to disperse the particles, e.g., first in the oil phase, and then in water, and function to keep the formulations physically and chemically stable. These dispersants include combinations of spécifie emulsifiers and polymers that interact with additional (e.g., up to five) active ingrédients to keep the entire composition stable, dispersed, and emulsifiable.
5 [0019] For example, the interaction between rheology modifiers (e.g., organoclays such as BENTONE® 1000 - Elementis) and MCPA-2-ethylhexyl is extremely positive, with little or no séparation upon storage. Rheology modifiers are typically used in formulations that include solvents or oils as carriers. The formulations described herein hâve no oil or solvent and use the MCPA-2ethylhexyl as the solvent/carrier. This rheology system is capable of stably suspending up to 5 active ingrédients with a reasonable particle size range, such as D50 from 1 to 10 microns (D50 representing the diameter at which 50% of the sample's mass is comprised of particles with a diameter less than this value). In addition to developing an OD formulation by using the MCPA-2-ethylhexyl, it can significantly increase the total loading of active ingrédients. For example, in addition to the MCPA-2-ethylhexyl, additional active ingrédients such as Flucarbazone Sodium, Cloquintocet Mexyl, Fluroxypyr Meptyl, and Bromoxynil
Octanoate can be added to the formulation.
[0020] In addition to the active ingrédients, emulsifiers such as Polyoxyethylene sorbitol hexaoleate, Ethoxylated Isotridecanol, and Sodium Dioctyl
Sulphosuccinate; dispersants such as Polymeric Ester Dispersant - Atlox 4916 (Croda), Polymer Dispersant - Atlox 4912 or Atlox 4914 (Croda), and Modified styrene acrylic copolymer dispersant - Atlox Metasperse 550S, Atlox Metasperse 500L, or Atlox Metasperse 100L and rheology modifiers such as Organoclay BENTONE® 1000 (Elementis) may also be used.
[0021] In the herbicidal formulation area it has been found challenging to develop formulations with stable chemistry. However, it has been discovered that the
0 desired degree of Chemical stability of the ingrédients is attained in an herbicidal oil dispersion formulation using the above described ingrédients. [0022] By being able to include a high number of active ingrédient with Chemical stability into such an herbicidal formulation, a significantly increased control spectrum of weed management can be attained, for example, i.e., addition of each active ingrédient increases the spectrum of weeds which can be controlled.
| Table 1 | |||
| Composition A | g/L (grams per liter) | % (by weight) | Function |
| Polyoxyethylene (40) sorbitol hexaoleate - (40 indicating moles of ethylene oxide) | 151.27 | 12.82 | Emulsifier |
| (Flucarbazone Sodium (94%) | 21.48 | 1.82 | Herbicide |
| Cloquintocet Mexyl (95%) | 4.25 | 0.36 | Herbicide |
| Fluroxypyr Meptyl (98%) | 130.27 | 11.04 | Herbicide |
| Bromoxynil Octanoate (98%) | 351.17 | 29.76 | Herbicide |
| MCPA-2-ethyhexyl (93.4%) | 375.24 | 31.80 | Herbicide |
| Polymeric Ester Dispersant - Atlox 4916 (Croda) | 16.52 | 1.4 | Dispersant |
| Ethoxylated Isotridecanol | 47.2 | 4.00 | Emulsifier |
| Polymer Dispersant - Atlox 4912 or Atlox 4914 (Croda) | 8.26 | 0.70 | Dispersant |
| Sodium Dioctyl Sulphosuccinate | 59 | 5.00 | Emulsifier |
| Organoclay - BENTONE® 1000 (Elementis) | 15.34 | 1.30 | Rheology Aid |
| Composition B | g/L | % | Function |
| Polyoxyethylene (40) sorbitol hexaoleate | 139.47 | 11.82 | Emulsifier |
| Flucarbazone Sodium (94%) | 21.48 | 1.82 | Herbicide |
| Cloquintocet Mexyl (95%) | 4.25 | 0.36 | Herbicide |
| Fluroxypyr Meptyl (98%) | 130.27 | 11.04 | Herbicide |
| Bromoxynil Octanoate (98%) | 351.17 | 29.76 | Herbicide |
| MCPA-2-ethyhexyl (93.4%) | 375.24 | 31.80 | Herbicide |
| Polymeric Ester Dispersant - Atlox 4916 (Croda) | 16.52 | 1.4 | Dispersant |
| Ethoxylated Isotridecanol | 47.2 | 4.00 | Emulsifier |
| Polymer Dispersant - Atlox 4912 or Atlox 4914 (Croda) | 8.26 | 0.70 | Dispersant |
| Sodium Dioctyl Sulphosuccinate | 59 | 5.00 | Emulsifier |
| Organoclay - BENTONE® 1000 (Elementis) | 15.34 | 1.30 | Rheology Aid |
| Modified styrene acrylic copolymer dispersant - Atlox Metasperse 550S, Atlox Metasperse 500L, or Atlox Metasperse 100L | 11.80 | 1.00 | Dispersant |
| Composition C | g/L | % | Function |
| Polyoxyethylene (40) sorbitol hexaoleate | 139.47 | 11.82 | Emulsifier |
| Flucarbazone Sodium (94%) | 21.48 | 1.82 | Herbicide |
| Cloquintocet Mexyl (95%) | 4.25 | 0.36 | Herbicide |
| Fluroxypyr Meptyl (98%) | 130.27 | 11.04 | Herbicide |
| Bromoxynil Octanoate (98%) | 351.17 | 29.76 | Herbicide |
| MCPA-2-ethyhexyl (934%) | 375.24 | 31.80 | Herbicide |
| Polymeric Ester Dispersant - Atlox 4916 (Croda) | 16.52 | 1.4 | Dispersant |
| Ethoxylated Isotridecanol | 47.2 | 4.00 | Emulsifier |
| Polymer Dispersant - Atlox 4912 or Atlox 4914 (Croda) | 8.26 | 0.70 | Dispersant |
| Sodium Dioctyl Sulphosuccinate | 59 | 5.00 | Emulsifier |
| Confidential Organoclay | 15.34 | 1.30 | Rheology Aid |
| Castor Oil Ethoxylate | 11.80 | 1.00 | Emulsifier |
| Composition D | g/L | % | Function |
| Polyoxyethylene (40) sorbitol hexaoleate | 149.5 | 12.67 | Emulsifier |
| Flucarbazone Sodium (94%) | 21.48 | 1.82 | Herbicide |
| Cloquintocet Mexyl (95%) | 4.25 | 0.36 | Herbicide |
| Fluroxypyr Meptyl (98%) | 130.27 | 11.04 | Herbicide |
| Bromoxynil Octanoate (98%) | 351.17 | 29.76 | Herbicide |
| MCPA-2-ethyhexyl (93.4%) | 375.24 | 31.80 | Herbicide |
| Polymeric Ester Dispersant - Atlox 4916 (Croda) | 16.52 | 1.4 | Dispersant |
| Ethoxylated Isotridecanol | 47.2 | 4.00 | Emulsifier |
| Polymer Dispersant - Atlox 4912 or Atlox 4914 (Croda) | 8.26 | 0.70 | Dispersant |
| Sodium Dioctyl Sulphosuccinate | 59 | 5.00 | Emulsifier |
| Confidential Organoclay | 15.34 | 1.30 | Rheology Aid |
| Silicon Emulsion | 1.77 | 0.15 | Antifoam |
[0023] Table 1 demonstrates représentative examples of compositions as described herein. Tables 2 and 3 demonstrate physical and chemical stability of compositions described herein. The benefits and details demonstrated in the Tables are for 5 multiple exemplary compositions, demonstrating their stability at various time periods and températures. The compositions also demonstrate physical property stability at low températures, such as phase séparation stability, formulation uniformity, particle size stability, émulsion stability, etc.
[0023] As mentioned above, the novel ready-mix herbicidal compositions 10 described herein are effective on a broader weed spectrum, such as, for example on grasses, broadleaf weeds and sedge, which is not the case with the individual herbicidal components alone. Typically the components are présent in an amount of about 10% to about 80% (for example, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%) by weight, and for most uses the higher the loading the more efficient the 15 application process, e.g., when treating large acreage and
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| 8 | g | 3 | 3 | § 8 | 8 | 3 | 3 | 2 | S | 3 | z | O | g | g | s | g | 8 | ||||||||||||
| ? | ? | 2 | S | S 8 | $ | o | S | g | 8 | ® | P | z | o | S | 8 | § | d | 8 | |||||||||||
| g | 8 | 8 | 2 | 2 | 8 | 3 | i | g | 8 | § | z | ® | i | S | 2 | ||||||||||||||
| 8 | S | i | 3 | 8 | 3 | i | s 8 | 8 | o | z | ° | a | 5 | 8 | S | d | |||||||||||||
| « | 8 | 8 | 3 | i | 2 | | | « | 8 | o | z | ° | O | 2 | S | § | 8 | ? | ||||||||||||
| o | 8 | 5 | s | 5 | F | 8 | 8 8 | S | 8 B | 2 | o | z | o | o | 1 | 8 | g | 8 | |||||||||||
| vi E | 9 | 2 | i | o | 8 8 | 3 | 0> | ' S | * | 8 3 | 8 '8 | § | z | e | ° | 2 | 8 | <0 s | s | 3 | |||||||||
| g | 2 | 5 | o | 8 | 3 | $ 8 | 8 | 8 | 3 3 | 8 | g | z | o | 2 | 8 | <r> 3 | s | ? | |||||||||||
| 2 | 2 | 2 | B | 3 | 8 | co | 8 | 3 | 8 | g | z | ° | S | g | 2 | S | |||||||||||||
| * | 2 | o | îiî | 3 | æ | 3 | I | 3 | 8 | g | Z | 2 | 8 | g | 3 | s | |||||||||||||
| v> E | § | 3 | 9 8 | d | 1 | 3 | ? | 3 | 8 | 8 3 | s | P | z | ° | i | P | 8 | g | |||||||||||
| g | 3 | S 8 | d | 8 | 3 | 0> | S | 3 8 | 8 3 | 8 | g | z | o | 8 | 3 | S | g | d | |||||||||||
| CO | 8 | 2 | 8 8 | 8 | 3 | 8 | 3 | 8 S | O | z | o | 2 | S | 3 CM d | 3 n | S ri | |||||||||||||
| 2 | 3 | 8 8 | 2 | i | 8 | 8 | 5 | 8 | 8 3 | 8 8 | g | z | ° | e | i | 3 | S CO d | ||||||||||||
| i | 3 | 8 | 8 | s | 3 | 3 | 8 | 8 8 | 8 B | 8 | g | z | ° | £ | P | ! | g | ||||||||||||
| t c “ § __£ | i | 2 | S | 3 | 3 | 8 | 8 8 | 8 8 | 8 | s | z | 8 | 8 | ||||||||||||||||
| P | g | 2 | s | 3 | 8 | B | | | z | « | | | d | 3 | |||||||||||||||||
| | | i | 2 | g | 8 | P | si | E C | ||||||||||||||||||||||
| i | ô k E | g | 1 j 3 5 | o 1 | i | © | | | | « | o E Î | g | | 5 î 3 JL | a § E B 5 g C | g | z i | g ω o i E 5 g | ί Ë | = X | X | i i | i | b £ 1 | S iR | .S w | E | E | i i 8 5 s |
Table 3
| S s | ? | s | si | 8 | 8 g | i | B | s | 3 | § | S g | Z | S | S | 5 | g g à i | B i B £ | S | 8 | s | |||||||||
| S | * | s | © | s | ° | s g | s g | g | 3 g | g g | ° | Z | 2 | 8 | s | S a g g | a ? g | 8 | S | ||||||||||
| ° | s | s | ό | g | « | g | 8 8 | 8 | g | î | Z | g | ° | 8 | 2 a έ a B | S g B | $ | 2 | |||||||||||
| Ξ | 5 8 | 2 | 2 | g | 8 | S | S | g | Z | 5 | 8 | ? | â i | g B £ | S | S | |||||||||||||
| s | § | - | 3 g | 2 | | | 2 | g | £ | g | 3 g | | | ° | 2 g | 3 | | | ç | g g g | g | 2 | £ | |||||||||
| o 1- | $ | g | s | § | 2 | 8 g | i | 2 g | g | i | g l·- | ® | ! | s | 2 g § | | a B g | 5 | « | |||||||||||
| 5 | S æ | 3 | i | 2 | 3 g | g g | 8 | 3 | 2 | 2 ! | SJ | s | S | 2 a g à 5 | B g § a £ | 8 | 8 | ||||||||||||
| s | § | s | i | ό | s g | 3 | g g | g g | g | 8 | g | Z | 2 | § | s | 2 g g | B g E | 2 | |||||||||||
| Q P | 5 | i | 2 | g | 8 | g | g | g | i | 8 g | ° | Z | s | 2 | $ | B a i | a a § î? | S | ? | ||||||||||
| ° | B | i | S | g | S | g | S | 8 g | 8 | 3 g | ° | Z | 3 | 5 | q | | | § a a | S | 2 | ||||||||||
| i | 3 si | S | g | g | s | 8 | S | g | 8 | ° | Z | ! | s | 3 | i δ g | a g B g | 8 | S | |||||||||||
| g | s | s | g | s | o | 8 g | s | g | g 3 | 3 | ° | Z | S | 3 | $ | i o a | ? B g θ S | ri | |||||||||||
| 1 | i | 2 | ώ | $ | H | 3 g | 2 | s | S | 2 a § | a | 2 g g g | c a a £ | ! | 2 g 2 | a a i £ | a 5 | ri | s | |||||||||||
| s i to | z | S | 2 | 3 | g | * | s | s E g | © | s E o 8 | |||||||||||||||||||
| i | p E i | i | g (Λ H e 1 | ? 3 ÿ | § ί J | ? 1 | â s g | ? ! g | | g -Q- | I | £ Ü 5 | ? 1 & 4 | E CT 2· ® a s | g | s Z E g -O- | .2 s £ | .1 I | 2 | i i î E 1 T i c | P λ g e· g I I έ E o £ | RT - 342 ppm (Bloomflnv/lhr/2hr/24/cTystals?) | i ; 1 5 1 i | 2C - 20 ppm (Bloom/!nv/lhr/2hr/24/crystals?) | E J 3 | S a & G 1 E i | 8 o o | jL | ω •e jL | E | E o. |
considering such things as lower cost of transportation. When diluted with water, the pre-mix is typically présent in an amount of about 0.01% to about 50% by weight, for example, for typical ground sprayer (lower concentrations) or aerial tank or drone (higher concentrations) applications.
[0024] The product also has extended shelf life, e.g., expected to be at least two years. The delivery system also has an acceptable toxicity profile according to current MSDS (Material Safety Data Sheets) data.
[0025] As described above, most OD matrices use oil based solvents, and especially aromatic solvents. The compositions described herein use low melting point active ingrédients, with enhanced compatibility when mixed with various materials such as dispersants and rheology aids. The compositions typically exist in liquid form at room temp, even at températures as low as minus 10 °C. Because of the lack of need for solvents, the compositions described herein are capable of very high loading, e.g., up to 80% by weight of the multiple active ingrédients described herein. This compares to less than 50% by weight, for example, with typical solvent containing compositions. This présents clear benefits to the user, e.g., longer spraying times per tank.
[0026] As described herein, these problems and others in this area are addressed by the invention described herein. Thus, the scope of the invention shall include ail modifications and variations that may fall within the scope of the attached claims. Other embodiments of the invention will be apparent to those skilled in the art from considération of the spécification and practice of the invention disclosed herein. It is intended that the spécification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (10)
1. An herbicidal composition comprising one or more herbicidally active ingrédients dissolved and/or suspended in an MCPA-2-ethylhexyl active ingrédient carrier, wherein the composition is oil and solvent free.
2 0 composition.
3. The composition of claim 1, additionally containing one or more dispersants.
10
4. The composition of claim 3, wherein the one or more dispersants comprise polymeric ester dispersants, polymer dispersants, and/or modified styrene acrylic copolymer dispersants.
5 20. The formulation as claimed in claim 19, additionally comprising a second herbicide selected from Flucarbazone Sodium, Cloquintocet Mexyl, Fluroxypyr Meptyl, and/or Bromoxynil Octanoate.
21. The formulation of claim 19 comprising:
MCPA-2-ethylhexyl;
5 . The composition of claim 1, additionally containing one or more emulsifiers.
15
6. The composition of claim 5, wherein the one or more emulsifiers comprise polyoxyethylene sorbitol hexaoleate, ethoxylated isotridecanol, and/or sodium dioctyl sulphosuccinate.
5 2. The composition of claim 1, wherein the one or more active ingrédients comprise Flucarbazone Sodium, Cloquintocet Mexyl, Fluroxypyr Meptyl, and/or Bromoxynil Octanoate.
7. The composition of claim 1, wherein the herbicidally active ingrédients are présent in an amount from about 2 percent to about 80 percent by weight of the
8. The composition of claim 3, wherein the dispersant is présent in a range of about 0.1 to about 20.0 percent by weight of the composition.
9. The composition of claim 5, wherein the emulsifier includes one or more nonionic surfactants selected from the group consisting of fatty alcohol ethoxylates, 2 5 tristyrylphenol ethoxylates, alkylphenolethoxylates, castor oil ethoxylates, fatty acid ethoxylates, alkylpolyglucosides, sorbitan ethoxylates, and ethylene oxide-propylene oxideethylene oxide block copolymers.
10. The composition of claim 5, wherein the emulsifier includes one or more anionic surfactants selected from the group consisting of salts of dodecylbenzenesulfonate, sodium dioctylsulfosuccinate, salts of tristyrylphenol ethoxylate phosphates, salts of fatty acids, salts of alkyl sulfates, salts of alkylether sulfates, salts of alkylether phosphates, and sodium N-methyl-N-oleyltaurate.
11. The composition of claim 5, wherein the emulsifier is présent in a range from about 0.1 to about 20 percent by weight.
12. The composition of claim 1, further comprising at least one rheology modifier selected from a hydrophobie fumed silica, bentonite, castor wax, magnésium stéarate, aluminum/magnesium hydroxide stéarate, a polymeric thickener, and combinations thereof.
13. The composition of claim 12, wherein the composition comprises about 0.01 to about 10 percent by weight of the rheology modifier.
14. The composition of claim 1, additionally containing one or more additives comprising an absorbent, an antifoaming agent, a stabilizer, an antifreeze agent, a base, an acid, and a buffer.
15. A method of preparing an herbicidal composition comprising combining one or more herbicidally active ingrédients in an MCPA-2-ethylhexyl active ingrédient carrier, wherein the active ingrédient carrier is otherwise oil and solvent free.
16. A method of controlling weeds comprising:
a) diluting the herbicidal composition of claim 1 with water; and
b) applying the diluted herbicidal composition to one or more crops.
17. The method of claim 16, wherein the applying step is performed postemergently after the one or more crops break ground.
18. The method of claim 16, wherein the applying step is performed preemergently before the one or more crops break ground.
19. An oil dispersion formulation comprising MCPA-2-ethylhexyl, wherein the formulation is free of an oil or a solvent.
10 a second herbicide selected from Flucarbazone Sodium, Cloquintocet Mexyl,
Fluroxypyr Meptyl, and/or Bromoxynil Octanoate; and a third herbicide selected from Flucarbazone Sodium, Cloquintocet Mexyl, Fluroxypyr Meptyl, and/or Bromoxynil Octanoate;
wherein the second and third herbicides are not same.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62/729,747 | 2018-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA20077A true OA20077A (en) | 2021-11-17 |
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