Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
  • A01N35/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen
  • A01N35/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen containing a carbon-to-nitrogen double bond
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
  • A01N35/06—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing keto or thioketo groups as part of a ring, e.g. cyclohexanone, quinone; Derivatives thereof, e.g. ketals
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
  • A01N25/10—Macromolecular compounds
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
  • A01N25/28—Microcapsules or nanocapsules

Definitions

• the field of art to which this invention generally pertains is products and methods of making products which are useful in fungicidal, insecticidal and herbicidal compositions.
• a composition particularly adapted for herbicidal use including one or more biopolymer containing micro-capsules containing one or more cyclohexanediones encapsulated therein, resulting in enhanced chemical stability and dispersibility of the encapsulated cyclohexanediones for such use.
• Additional embodiments include, the composition described above where the cyclohexanedione comprises Clethodim; the composition described above where the biopolymer comprises polysaccharide and/or cellulose; the composition described above where the polysaccharide comprises Inulin; the composition described above including one or more surfactants; the composition described above where the cyclohexanediones are present in the micro-capsules in an amount of 1% to 70% by weight; the composition described above made by complex coacervation; the composition described above where the composition optionally contains one or more natural gum, starch, protein, alcohol, water soluble polymer, and/or an oil; the composition described above where the alcohol comprises Sorbitol; the composition described above where the natural gum comprises Gum Arabic; the composition described above where the surfactant comprises one or more polyalkylene oxide block copolymers; a water dispersion containing the composition described above; and an oil dispersion containing the composition described above; the composition described above where the oil comprises vegetable oil
• composition described above where the polyoxyethylene sorbitan is a monolaurate, monostearate, tristearate, and/or trioleate.
• a method of controlling insects and/or weeds comprising applying the composition described above is also described.
• Additional embodiments described include the method described above where the applying step is performed post-emergently after the crop breaks ground; and the method described above where the applying step is performed pre- emergently before the crop breaks ground.
• Clethodim for example
• microcapsules are formed through conventional complex coacervation techniques.
• this encapsulation technology and one or more appropriate surfactants, the new delivery system demonstrates many advantages, including the following to name just a few:
• the oil phase acts as a built-in adjuvant for improving bio efficacy for oil dispersions.
• composition materials are first hydrated and thoroughly mixed (1).
• the solutions are prepared by dispersing the composition materials in a concentration from 2% to 50% by weight based on their molecular weights and the desired viscosity of the final solutions, i.e. balanced viscosity for product handling and minimized phase separation.
• the solutions are gently stirred and stored, for example, overnight to ensure complete hydration of the biopolymers (2). Heat may be applied to enhance dissolving if necessary.
• the biopolymer solution or a mixture of biopolymer solutions are mixed in a beaker with appropriate surfactants (3).
• a Clethodim solution in a concentration from 50% to 80% is then metered into the breaker (4) and
• micro-emulsion mixture is further spray-dried (6) with an air flow whose inlet temperature is from 110 °C to 120 °C.
• the microcapsule powder is collected and analyzed.
• the microcapsule powder can be further made into an Oil Dispersion by suspending the powder into one or more selected oils in a concentration from 20% to 90% under agitation.
• one or more surfactants including dispersants, emulsifiers, rheology aids are added into the Oil Dispersion to stabilize the mixture.
• the oil dispersion is analyzed below.
• the commercial EC product contains 120 g/L of Clethodim
• the water based dispersions can contain functional materials such as: Cyclohexanediones such as Clethodim, Polysaccharides such as Inulin, Natural gums such as Gum Arabic,
• Polysaccharides such as maltodextrin, starches and polysaccharides such as Waxy Maize Starch, proteins such as Whey Protein, Sugar Alcohols such as Sorbitol and Mannitol, Polysaccharide starches, Cyclic oligosaccharide such as Cyclodextrin; conventional surfactants such as Polyoxyethylene (20) sorbitan monolaurate, Alkylated vinyl- pyrrolidone polymer, Isopropyl alcohol, EO/PO (ethylene oxide/propylene oxide) block copolymer, Anionic polymeric dispersant
• Polyalkylene oxide block copolymer Polyalkylene oxide block copolymer, nonionic block copolymer , Butyl block copolymer, and Polyvinylpyrrolidone Water soluble polymer.
• the oil based dispersions can also contain functional materials such as: conventional surfactants such as EO/PO (ethylene oxide/propylene oxide) block copolymer, Polyalkylene oxide block copolymer, EO/PO block copolymer, nonionic block copolymer, Butyl block copolymer, Polyvinylpyrrolidone Water soluble polymer, anionic polymeric dispersant, cetyl ether phosphate, oleyl ether phosphate, polyoxyethylene (5) oleyl mono/di-phosphate, polyoxyethylene (3) oleyl mono/di-phosphate, sodium dioctyl- sulfosuccinate, polyoxyethylene (40) sorbitol hexaoleate, ethoxylated castor oil and rapeseed oil fatty acid methyl ester.
• conventional surfactants such as EO/PO (ethylene oxide/propylene oxide) block copolymer, Polyalkylene oxide block copolymer, EO

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• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Plant Pathology (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• Agronomy & Crop Science (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Pest Control & Pesticides (AREA)
• Toxicology (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Medicinal Preparation (AREA)

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Citations (12)

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• 2019
  • 2019-11-12 CN CN201980074191.7A patent/CN112996389A/zh active Pending
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• 2021
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Patent Citations (12)

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