[go: up one dir, main page]

WO2017065015A1 - Composition de pesticide en granulés - Google Patents

Composition de pesticide en granulés Download PDF

Info

Publication number
WO2017065015A1
WO2017065015A1 PCT/JP2016/078871 JP2016078871W WO2017065015A1 WO 2017065015 A1 WO2017065015 A1 WO 2017065015A1 JP 2016078871 W JP2016078871 W JP 2016078871W WO 2017065015 A1 WO2017065015 A1 WO 2017065015A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
granular
silica
particle size
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/078871
Other languages
English (en)
Japanese (ja)
Inventor
聡信 山崎
龍 田中
賢太郎 加藤
森 横山
太田　雄一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumiai Chemical Industry Co Ltd
Original Assignee
Kumiai Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kumiai Chemical Industry Co Ltd filed Critical Kumiai Chemical Industry Co Ltd
Priority to CN201680051222.3A priority Critical patent/CN107949278B/zh
Priority to JP2017545143A priority patent/JP6732774B2/ja
Priority to KR1020187004827A priority patent/KR102710985B1/ko
Publication of WO2017065015A1 publication Critical patent/WO2017065015A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • A01N25/12—Powders or granules
    • 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
    • A01N25/30—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 characterised by the surfactants
    • 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
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/10—Sulfones; Sulfoxides
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof

Definitions

  • the present invention relates to a granular agrochemical composition, and more particularly, to a granular agrochemical composition capable of uniformly diffusing an agrochemical active ingredient by, for example, spraying a small amount directly onto a water surface such as a paddy field.
  • agrochemical compositions used in paddy fields and the like are generally granules, powders, emulsions, wettable powders, and flowables.
  • granules and powders have been sprayed directly without diluting 1-4 kg of water per 10a, but in recent years there has been a call for labor saving in spraying pesticides. Therefore, it is possible to reduce the spraying amount as a pesticide composition by increasing the content of the pesticide active ingredient in the pesticide composition, or to spray it by simply throwing it from the shore without entering the paddy field. Things are sought.
  • Patent Document 1 discloses an agricultural chemical active ingredient and a surfactant.
  • Water-floating large-sized granular pesticide composition characterized by having a particle size distribution in which particles having a particle diameter of 3 mm or more are 80% or more and having a property of floating on the water surface and disintegrating on the water surface within 30 minutes Is disclosed.
  • the agrochemical composition has a high self-diffusibility, and by spraying a small amount of the agrochemical composition of about 250-500 g per 10 a paddy field, the agrochemical active ingredient is uniformly distributed throughout the paddy field. It can be thrown in and can be said to be an ideal pesticide composition for labor saving application.
  • the self-diffusion property in the granular agrochemical composition of Patent Document 1 refers to the disintegration of the agrochemical active ingredient that formed the granular agrochemical composition by disintegrating the granular agrochemical composition while floating on a water surface such as paddy field for a predetermined time. It is the performance that particles diffuse to a place away from the treatment point and are distributed over a wide area of the water surface.
  • the self-diffusion property of this granular pesticide composition depends on the property that the surfactant in the granular pesticide composition spreads quickly to the entire gas-liquid interface such as paddy fields. It is established in the form of piggybacking the granular agrochemical composition in the middle of the collapse to the wave brought to.
  • the dispersibility and suspension of the agrochemical active ingredient that constituted it is poor, that is, the agrochemical active ingredient is in a state where it does not disperse by forming an aggregate,
  • the agglomerates may fall off from the granular pesticide composition in the middle of disintegration and settle in place, and the desired self-diffusion property may not be exhibited as a granular pesticide composition. It was.
  • amorphous silica is one of the substances known as auxiliary agents used in agricultural chemical formulations, and the information is disclosed in Non-Patent Document 1, for example.
  • Amorphous silica is classified into wet silica (precipitated silica) and dry silica (fumed silica) depending on the production method.
  • Wet silica is usually a porous fine powder having a particle size of about 1-10 ⁇ m, and has a high oil absorption capacity due to its porous structure, and can hold about 200-340 mL of liquid per 100 g of wet silica. In the field of agrochemical formulation technology, it is widely used as a liquid pesticide active ingredient and an adsorbent carrier for auxiliary materials.
  • dry silica usually has a very fine particle diameter of about 5-50 nm and has a correspondingly high specific surface area, but has no porous structure, so it does not have the ability to carry liquid inside the particles, Oil absorption capacity is low.
  • the amorphous silica has a silanol group which is a hydrophilic group in the molecule, regardless of whether it is produced by a wet method or a dry method.
  • the hydroxy group on the surface of the silica particles is chemically substituted with a hydrophobic group, and such silica is difficult to wet with water and is called hydrophobic silica.
  • Non-Patent Document 1 discloses the use of granules as an aggregation inhibitor as one of the uses of amorphous silica in the technical field of agricultural chemical formulations.
  • a granular agrochemical composition of Patent Document 1 when the blending of amorphous silica was examined, a granular agrochemical composition using any of hydrophilic wet silica, hydrophobic wet silica, hydrophilic dry silica, and hydrophobic dry silica.
  • the agglomeration inhibitory effect of the pesticidal active ingredient may be insufficient, or rather the aggregation may be remarkable, and further, the disintegration of the granular agrochemical composition on the water surface may be prevented. It did not come.
  • the main object of the present invention is to provide a granular pesticide composition excellent in self-diffusion property in a water-floating granular pesticide composition, in which the dispersion suspension of the pesticide active ingredient after the above collapsed on the water surface is improved. It is.
  • the present invention has the following contents.
  • a pesticidal active ingredient silica, a surfactant, a hollow body, and a solid carrier, a particle size distribution in which particles having a particle size of 3 mm or more are 80% or more, and floating on the water surface,
  • a granular agrochemical composition having a property of collapsing on the water surface within 30 minutes, wherein the silica is polymethylsilylated silica in which the surface of hydrophilic silica is modified with dimethylsilyl groups or trimethylsilyl groups.
  • a granular pesticide composition is polymethylsilylated silica in which the surface of hydrophilic silica is modified with dimethylsilyl groups or trimethylsilyl groups.
  • pesticidal active ingredient is one or more selected from the group consisting of pyrimisulphan, pyroxylone, phenoxasulfone, fenquinotrione, phentolazamide, benzobicyclon, and benzophenap
  • pyrimisulphan pyroxylone
  • phenoxasulfone fenquinotrione
  • phentolazamide phentolazamide
  • benzophenap The granular agrochemical composition according to any one of the above.
  • the composition contains an agrochemical active ingredient, and those having a particle size of 3 mm or more have a particle size distribution of 80% or more and a property of floating on the water surface, and are disintegrated on the water surface within 30 minutes. It is possible to provide a granular agrochemical composition that improves the dispersion and suspension of the agrochemical active ingredient after being disintegrated on the water surface, that is, excellent in self-diffusion. Moreover, the granular agrochemical composition of this invention is excellent also in disintegration.
  • minor axis means the length of a short part in the shape of the granule
  • major axis is the length of a long part. Specifically, these are the shortest and longest values respectively measured by sandwiching any two ends of the granular agrochemical composition with calipers.
  • Particle size means a particle size obtained by a sieving method using a sieve having a predetermined opening
  • Particle size distribution means an integrated weight percentage of a prescribed particle size range obtained by a sieving method. .
  • the “average particle size” means the volume average size obtained by the laser diffraction method
  • the “particle size distribution” means the laser diffraction method.
  • the “specific surface area” means a specific surface area determined by a BET method (nitrogen adsorption method) based on ISO 9277: 2010 (JIS method Z8830: 2013).
  • the granular agrochemical composition of the present invention is an extruded granulated agrochemical composition comprising an agrochemical active ingredient, polymethylsilylated silica, a surfactant, a hollow body, and a solid carrier.
  • the particle size distribution is 3% or more and the particle size distribution is 80% or more and the property of floating on the water surface, and the disintegration time is within 30 minutes.
  • Such a granular agrochemical composition is first mixed with raw materials constituting the granular agrochemical composition, added with a predetermined amount of water, kneaded, extruded from a screen having a pore diameter of 3 mm or more, granulated, dried, for example, It can be obtained by taking out granules having a desired particle size using two sieves having different openings.
  • the agrochemical active ingredient that can be used in the granular agrochemical composition of the present invention is not particularly limited, and may be solid or liquid at room temperature. Although the agrochemical active ingredient which can be used for this invention is listed below, it is not limited to these.
  • [Insecticide active ingredient] Acrinathrin, Azadirachtin, Azamethiphos, Azinophos-ethyl, Azeinosylacetin, Acequinocetyl (Acephate), azocyclotin, abamectin, afidopyropen, amidoflumet, amitraz, alanib, alicalb, aldib Aldoxycarb, allethrin [including d-cis-trans-form and d-trans-form], isazophos, isamifofos, isocarbophos, isoxathion methyl, isoxathion methyl, isoxathion (Isofenphos-methyl), isoprocarb, ivermectin, imicyafos, imidacloprid, imiprothrin, indoxacarb, indoxacarb offencarb, ethifotin, etemoforthos,
  • Islaelensis Bacillus thuringiensis subsp. Kurstakis, B. burs. thuringiensis subsp. 1,1,1-G Chloro-2,2-bis (4-chlorophenyl) ethane (DDT), dimethyl-2,2,2-trichloro-1-hydroxyethylphosphonate (DEP), 4,6-dinitro-o-cresol (DNOC), O , O-diethyl-O- [4- (dimethylsulfamoyl) phenyl] -phosphorothionate (DSP), ethyl-p-nitrophenylthionobenzenephosphonate (EPN), nuclear polyhedrosis virus embedded body, NA-85 (code number), NA-89 (code number), NC-515 (code number), RU15525 (code number), ZDI-2501 (code number), XMC, Z-13-icosen-10-one, ZXI8901 (code number), ME5382.
  • DDT di
  • Folpet phthalide, bupirimate, fuberidazole, blasticidin-S, furamethpyr, furaxyl, furaxyl, furaxyl (Fluazinam), fluoxastrobin, fluopicolide, fluopyram, fluorimide, fluxapiroxad, fluquinconazole (flucoconazole) ole), fluconazole-cis, fludioxonil, flusilazole, flusulfamide, fluthianil, flutoranol, flutrianol, flutrianol ), Flumetover, fluromorph, proquinazid, prochloraz, procymidone, prothiocarb, prothioconazole, prothioconazole on Bronopol, propamocarb-hydrochloride, propiconazole, propinebole, probenazole, bromconazole, and bromconazole.
  • Benalaxyl-M benodanyl, benomyl, pefurazoate, penconazole, pencyclon, benzobindiflupyr (benzyl) hizole, Benchavaricarb-isopropyl, pentiopyrad, penflufen, boscalid, fosetyl, polycium, polycium, polycium polycarbamate, Bordeaux liquid, mancozeb, mandipropamide, mandestrobin, manneb, microbutanil, mycrobutilmin Rudiomycin, metasulfocarb, metham, metalaxyl, metalaxyl M laxyl-M), methylam, metconazole, metminostrobin, metraphenone, mepanipirim, meptyldino
  • pyrimisulphan, pyrokilone, phenoxasulfone, fenquinotrione, fentolazamide, benzobicyclon and benzophenap are particularly suitable for the present invention.
  • agrochemical active ingredients can be used alone or in admixture of two or more.
  • the total blending ratio of the pesticidal active ingredient is not particularly limited, but is usually 1-70% by mass, preferably 3-60% by mass, more preferably 5-50% by mass based on the total amount of the granular agrochemical composition.
  • the granular agrochemical composition of the present invention contains, as an essential component, polymethylsilylated silica in which the surface of hydrophilic silica is modified with a dimethylsilyl group or a trimethylsilyl group.
  • the molecular structure of hydrophilic silica is composed of an infinite number of continuous Si—O bonds, and the particle surface has the following formula (I): There is a terminal hydroxy group as shown in FIG.
  • Various residues can be introduced into the hydroxyl group on the particle surface by chemical treatment with an appropriate surface treatment agent.
  • the surface treatment agent include dimethyldichlorosilane, polydimethylsiloxane, and cyclic dimethylpolysiloxane.
  • Siloxane, octylsilane, hexamethyldisilazane, hexadecylsilane, methacrylsilane, various silicone oils, aminosilane, and the like are known.
  • the residue introduced into the hydroxy group varies depending on the selection of the surface treatment agent to be used.
  • dimethyldichlorosilane the following formula (II)
  • a hydrophobic silica whose surface is modified with a dimethylsilyl group shown in the following, that is, polymethylsilylated silica used in the present invention is obtained and chemically treated with an alkylsilane such as octylsilane or hexadecylsilane.
  • the polymethylsilylated silica that can be used in the granular agrochemical composition of the present invention is one in which the surface of the hydrophilic silica is modified with a dimethylsilyl group or a trimethylsilyl group, and in particular, the surface is modified with a trimethylsilyl group. .
  • the inventors of the present invention have described the granular agrochemical composition of Patent Document 1 to which the polymethylsilylated silica is added, the granular agrochemical composition to which hydrophilic silica is added and the hydrophilic silica with a hydrophobic group other than the polymethylsilyl group. It has been found that the dispersibility and suspendability of the pesticidal active ingredient after disintegrating on the water surface is remarkably improved as compared with the granular pesticidal composition to which the treated hydrophobic silica is added. Furthermore, it was shown that the granular agrochemical composition of this invention is excellent also in disintegration. The effect of the present invention was specific to the granular agricultural chemical composition in which polymethylsilylated silica was selected.
  • the hydrophilic silica used as the raw material for the polymethylsilylated silica can be produced by either a dry method or a wet method, but it is preferable that the single particle is a nanoparticle having a particle diameter of less than 1 ⁇ m. What was manufactured by the dry method with which the hydrophilic silica of this is easy to be obtained is preferable. Since dry silica single particles are extremely prone to agglomeration, the usual particle size measurement method such as laser diffraction method is used to determine whether the measured value is the particle size of single particles or secondary particles formed by aggregation of single particles. It may be difficult to determine the particle size.
  • the polymethylsilylated silica used in the present invention is expressed by a specific surface area that is a parameter independent of the aggregation state of the particles, the specific surface area is not particularly limited, but is usually about 10 to 1000 m 2 / g, preferably 100-500m 2 / g, more preferably 100-250m 2 / g.
  • the polymethylsilylated silica used in the present invention may not have all the hydroxy groups of hydrophilic silica substituted with dimethylsilyl groups or trimethylsilyl groups as in the formula (II) or formula (V), Polymethylsilylated silica containing a certain amount of unreacted hydroxy groups can also be used.
  • the degree of substitution is not particularly limited, but the carbon content of the polymethylsilylated silica derived from the carbon atom of the methyl group is usually about 0.1-10% by mass, preferably 0.5-8% by mass, Preferably, it is 1-6% by mass.
  • the carbon content can be measured, for example, using an elemental analyzer such as a trade name “SUMIGGRAPH NC-22F” (manufactured by Sumitomo Analysis Center).
  • the blending ratio of polymethylsilylated silica in the granular pesticidal composition of the present invention is not particularly limited, but is usually about 2-10% by mass, preferably 4-8% by mass based on the total amount of the granular pesticidal composition.
  • a surfactant is blended in order to disintegrate the grains on the water surface and diffuse the agrochemical active ingredient into water.
  • the surfactant that can be used those generally used in agricultural chemical compositions can be used.
  • surfactants examples include polyethylene glycol higher fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene alkyl aryl ethers, polyoxyethylene aryl phenyl ethers, sorbitan monoalkylates, acetylene alcohols and acetylenic diols and their Nonionic surfactants such as alkylene oxide adducts; alkylaryl sulfonates, dialkyl sulfonates, lignin sulfonates, naphthalene sulfonates and their condensates, alkyl sulfates, alkyl phosphates, alkylaryls Sulfate ester salt, alkylaryl phosphate ester salt, polyoxyethylene alkyl ether sulfate ester salt, polyoxyethylene alkyl aryl ether sulfate ester Anionic surfactants such as thiol salts, polyoxyethylene arylphenyl
  • the above surfactants can be used alone or in admixture of two or more.
  • the total blending ratio of these surfactants is not particularly limited, but is usually 0.1-15% by mass, preferably 0.5-12.5% by mass, more preferably based on the total amount of the granular agrochemical composition. 1-10% by mass.
  • the granular agricultural chemical composition of the present invention floats on the water surface.
  • methods for imparting water surface floatability to granular agrochemical compositions include, for example, perlite made of pearlite or obsidian, foamed shirasu made of shirasu, phylite baked in an aluminosilicate system, sodium silicate or borax.
  • the former independent one or more More preferable is a method of containing a hollow body having a chamber.
  • a plastic balloon having a thermoplastic polymer as a wall material is floated from a small amount of less than 5% by mass on the basis of the total amount of the granular composition. It is particularly preferable in that it can secure the properties and has a secondary effect of improving the granulation property when the raw material kneaded product is extruded and granulated.
  • thermoplastic polymer used as the wall material of the plastic balloon examples include hard and soft polyvinyl polymers such as polyvinyl chloride, polyvinylidene chloride, and polyvinyl alcohol; polystyrene, high density, medium density, and low density polyethylene, and ethylene.
  • Polystyrene polymer such as vinyl acetate copolymer; Unmodified polypropylene; Polyacetal polymer of homopolymer or copolymer; Acrylic polymer such as polymethyl methacrylate and methacryl / styrene copolymer; Cellulose acetate Polycarbonate; polyester polymer such as polyethylene terephthalate; polyamide polymer such as nylon 6 and nylon 66; thermoplastic polyurethane; ethylene trifluoride chloride, tetrafluoride ethylene, tetrafluoroethylene / hexafluoropropylene copolymer Combined, four foot Fluorine polymers such as ethylene / perfluoroalkoxyethylene copolymer, ethylene tetrafluoride / ethylene copolymer, and vinylidene fluoride can also be mentioned, but polyacrylonitrile or polyacrylonitrile-based polymer containing acrylonitrile as a monomer unit A copolymer is preferred
  • polyacrylonitrile copolymer examples include styrene / acrylonitrile copolymer, styrene / butadiene / acrylonitrile copolymer, vinylidene chloride / methyl methacrylate / acrylonitrile copolymer, methyl methacrylate / acrylonitrile / methacrylonitrile.
  • examples include copolymers, methyl methacrylate / acrylonitrile copolymers, acrylonitrile / methacrylonitrile / itaconic acid copolymers, and the like.
  • the particle size of the hollow body is not particularly limited, but is usually 1-600 ⁇ m, preferably 3-300 ⁇ m, more preferably 5-100 ⁇ m.
  • the blending amount of these hollow body materials is not particularly limited as long as the granular agrochemical composition obtains water surface floatability, but if it is blended more than necessary, it becomes brittle particles and may be crushed during storage, transportation or use. Since there are cases where it is not preferable, for example, the amount of dust generated during production increases, it is desirable to add the minimum amount necessary. For this reason, the upper limit of the amount of the hollow body is generally up to about 30% by mass, preferably 15% by mass or less, more preferably 5% by mass or less, based on the total amount of the granular agricultural chemical composition. When the hollow body is a plastic balloon, the granular agrochemical composition can obtain water surface floatability even with a blending amount of 5% by mass or less.
  • the minimum of the compounding quantity of the said hollow body is 0.3 mass%, and it is preferable that it is 0.5 mass% or more. If the blending ratio is less than 0.3% by mass, the granular agrochemical composition may not exhibit water surface floatability.
  • a solid carrier is blended.
  • a water-soluble carrier or a water-insoluble carrier can be used, and these can be used in combination.
  • Water-soluble carriers include, for example, organic or inorganic acid salts such as ammonium sulfate, ammonium bicarbonate, ammonium nitrate, ammonium chloride, potassium chloride, sodium sulfate, magnesium sulfate, sodium citrate, sodium carbonate, sodium bicarbonate, citric acid, succinic acid Organic acids such as sucrose, saccharides such as lactose, urea and the like.
  • Mineral fine powder is generally used as the water-insoluble carrier, and examples thereof include clays, calcium carbonate, bentonite, talc, diatomaceous earth, and calcium stearate.
  • the solid carriers can be used alone or in admixture of two or more.
  • the total blending ratio of these solid carriers is not particularly limited, but is usually 0.1-96.6% by mass, preferably 10-70% by mass, based on the total amount of the granular agricultural chemical composition.
  • an auxiliary agent is blended as necessary as other components.
  • the auxiliary agent that is an optional component include phytotoxicity reducing agents, decomposition inhibitors, binders, and disintegration aids for pesticidal active ingredients.
  • safeners for active ingredients of agricultural chemicals include benoxacol, furilazole, dichlormide, dicyclonone, N1, N2-diallyl-N2-dichloroacetylglycinamide (DKA-). 24), 4-dichloroacetyl-1-oxa-4-azaspiro [4.5] decane (AD-67), 2,2-dichloro-N- (1,3-dioxane-2-ylmethyl) -N- ( 2-propenyl) acetamide (PPG-1292), 3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazolidine (R-29148), croquint set-mexyl, naphthalic anhydride (1,8-Naphth lic Anhydride, mefenpyr-diethyl, mefenpyr, mefenpyr-ethyl, fenchlorazole-O-ethyl, 2-chlorodimethyl -2-
  • agricultural chemical active ingredient decomposition inhibitors include desiccants such as zeolite, quicklime and magnesium oxide, antioxidants such as phenolic compounds, amine compounds, sulfur compounds and phosphoric acid compounds, salicylic acid compounds and benzophenone compounds. And the like.
  • binder examples include carboxymethylcellulose sodium salt, dextrin, water-soluble starch, xanthan gum, guar seed gum, sucrose, polyvinylpyrrolidone, polyvinyl alcohol, polyacrylic acid sodium salt, polyoxyethylene having an average molecular weight of 6,000 to 5 million, and the like. Can be mentioned.
  • disintegration aid examples include sodium triphosphate, sodium hexametaphosphate, metal stearate, cellulose powder, dextrin, methacrylate ester copolymer, polyvinylpyrrolidone, polyaminocarboxylic acid chelate compound, sulfonated styrene Examples thereof include an isobutylene / maleic anhydride copolymer and a starch / polyacrylonitrile graft copolymer.
  • each of the above adjuvants can be used alone or in admixture of two or more.
  • the total blending ratio of the adjuvants is usually about 0.1-20% by mass, preferably 0.5-10% by mass, based on the total amount of the granular agricultural chemical composition.
  • the granular agrochemical composition of the present invention is usually a granular composition that floats on the water surface containing the components described above, but each of the aforementioned components and blending amounts is a composition having a particle size of 3 mm or more.
  • the disintegration time on the water surface is adjusted to be within 30 minutes, preferably within 20 minutes, and more preferably within 15 minutes.
  • the granular agrochemical composition is blown by the wind, which is not preferable.
  • the portion exposed on the water surface is 40% or less of the entire granular pesticide composition, preferably 20% or less. It is desirable to adjust the amount of each of the above components.
  • the granular agrochemical composition of the present invention is rapidly dispersed and suspended in the water surface or water after disintegration on the water surface, preferably immediately after disintegration, at least 1 hour after the granular agrochemical composition is sprayed on the water surface at the latest. Eliminates visible undispersed particles on the water surface and in the water. It is difficult to visually determine the presence or absence of undispersed particles having a particle size that cannot be confirmed with the naked eye, for example, less than 100 ⁇ m. Since it can float in water for a long time, even if it exists, self-diffusion of the pesticidal active ingredient, which is a subject of the present invention, can be achieved without any problems.
  • the manufacturing process of the granular agrochemical composition of this invention follows a well-known method. That is, [A] mixing all the raw materials constituting the granular agrochemical composition to obtain a mixture; [B] adding a predetermined amount of water to the mixture obtained in step [a] and kneading the mixture; [C] A step of discharging and granulating the kneaded product obtained in the step [b] from a screen having a pore diameter of 3 mm or more using an extrusion granulator; [D] drying the granulated product obtained in step [c]; [E] sieving the dried granulated product obtained in step [d];
  • the granular agrochemical composition of this invention can be obtained by passing through.
  • step [a] all raw materials constituting the granular agricultural chemical composition including the agricultural chemical active ingredient, polymethylsilylated silica, surfactant, hollow body and solid carrier are mixed.
  • a known mixer such as a Nauta mixer or a vertical mixer can be used. All the raw materials are mixed in the mixer for a predetermined time to obtain a mixture.
  • step [b] water is added to the mixture obtained in step [a] and kneaded (step [b]).
  • a known kneader such as a kneader, a ribbon mixer, or a vertical mixer can be used.
  • the amount of water to be added is not particularly limited, but usually about 10-15% by mass in the mixture may be added in an external ratio.
  • This mixture is kneaded for a predetermined time in the kneader to obtain a kneaded product.
  • the kneaded product is discharged from a screen having a pore diameter of 3 mm or more, preferably 3 to 10 mm, more preferably 3 to 8 mm using an extrusion granulator (step [c]).
  • the granular agrochemical composition of the present invention preferably has an external shape composed of a curved surface with a ratio of the minor axis to the major axis of 1-3, and the ratio of minor axis to major axis is 1-2. It is more preferable.
  • the granulated product obtained in the step [c] was cut into a desired length, placed in a horizontally placed drum, and composed of a curved surface.
  • a method of rotating the drum until it becomes an external shape to give a motion of rolling into a granulated product can be mentioned.
  • the compression disintegration strength per grain of the agricultural chemical composition is 0.1 kgf or more, preferably 0.3 kgf or more.
  • This compressive collapse strength is a load value when a grain collapses when a load is applied to one grain at a constant gravitational acceleration.
  • the compression disintegration strength per grain can be measured using a commercially available load tester, a tensile compression tester, or the like.
  • the drying temperature for drying the granulated product is not particularly limited, but is about 40-95 ° C., and the residual water content is usually 0.3-3 mass based on the total amount of the granular agrochemical composition. % Until it has a water content of about 0.3-1.5% by mass, preferably about 0.3-1.5% by mass. When the moisture is in such a range, both the powdering and stickiness of the granular agrochemical composition are suppressed.
  • the specific gravity is not particularly limited, but is preferably 0.3-1 and more preferably 0.3-0.5 from the viewpoint of water surface floatability, ease of packaging, and securing the number of grains.
  • the dried granulated product is sieved, and the dried granulated product having a desired particle size is selected to obtain the granular agrochemical composition of the present invention (step [e]).
  • the granular agrochemical composition of the present invention is required to contain more particles having a particle size of 3 mm or more, that is, to have a particle size distribution in which particles having a particle size of 3 mm or more are 80% or more. More preferably, the particle size of ⁇ 10 mm is 80% or more, and in particular, the particle size of 3-8 mm is 80% or more.
  • the preparation By making the preparation have the above particle size distribution, even when sprayed from the shore, it is possible to easily obtain a spray area of 5-50% of the total paddy area at a distance of 1 m or more from the shore.
  • a secondary effect of making the particle size 3 mm or more misuse can be prevented because it can be easily discriminated from the granule for paddy rice seedling box containing many particles having a particle size of usually about 0.8 mm. Can be mentioned. Even if a misuse is noticed after treating the paddy rice seedling box, only the preparation of the present invention floats on the surface of the water by putting the whole seedling box in water, so that the damage of misuse can be minimized.
  • composition of the granular agrochemical composition of the present invention include, for example, 8% by mass or more of an active ingredient having a water surface application effect as a component, a particle size of 3-8 mm, and a specific gravity of 0.3-0. 5, the ratio of the minor axis to the major axis is 1-2, the particle surface has an external shape formed by a curved surface, disintegrates within 20 minutes after being sprayed on the water surface, and immediately after the collapse on the water surface and water Examples include those in which there are no visible undispersed particles.
  • a method for spraying the granular pesticide composition of the present invention on the surface of a paddy field or the like.
  • a method of holding and throwing the granular pesticide composition with a hand wearing vinyl gloves While using a power spreader, a method that uses a power spreader to continuously discharge from the jet head, or a method that opens and closes the shutter lever instantaneously to spray and sprays, or a handle
  • a method of throwing a cylindrical container by shaking a method of using a hand-held type granulator, and a method of spraying in a streak shape or a spot using a radio control helicopter.
  • a predetermined amount of the obtained granular agrochemical composition may be packaged with a water-soluble film such as polyvinyl alcohol and put into a paddy field or the like together with the package as a so-called jumbo agent form.
  • the labor-saving spraying composition on which local spraying is a premise was a composition sprayed when rice plants are small.
  • the granular pesticide composition of the present invention has good diffusion of the pesticide active ingredient in the paddy field where algae is generated, or in the paddy field where rice plants have grown to some extent, and the desired pesticide effect can be obtained. It can be said that it is a water-floating granular pesticide composition, and by spraying this to a specific position in a paddy field and within a specific area, it is possible to achieve a uniform pesticide active ingredient with almost no hindrance to labor saving when spraying pesticides. It can be spread. That is, the diffusible granular pesticide composition having a particle size of 3 mm or more according to the present invention is 80% or more, floats on the water surface, and disintegrates on the water surface within 30 minutes. By spraying over the above distance, preferably at a distance of 2 m or more from the shore, 5-50% of the total paddy area, preferably 10-50%, it is uniformly distributed in the paddy field. Can be sprayed.
  • the granular pesticide composition of the present invention is sprayed over 50% or more of the total paddy field area, it is meaningless for the purpose of labor-saving pesticide spraying, and sprayed over an area of 50% or less. Is desirable. Furthermore, naturally, even in a paddy field free from algae, a paddy field before transplanting, or a paddy field with a small rice stock, the diffusion of the pesticidal active ingredient by the granular pesticide composition of the present invention is good, and An effect is obtained.
  • a part represents a mass part.
  • Example 1 Hydrophobic silica with a specific surface area of about 140 m 2 / g and carbon content of about 2.3% by mass obtained by surface treatment of hydrophilic silica produced by a dry process with trimethylsilyl group (trade name “AEROSIL RX200”, Nippon Aerosil) 6 parts), aryl sulfonate 10 parts, polycarboxylate 2 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts 3 parts of bentonite, 1 part of urea and 24 parts of calcium carbonate were added, kneaded with a predetermined amount of water, and then extruded and granulated from a screen with an opening diameter of 5 mm, and the length was about 10 mm with a scraper.
  • AEROSIL RX200 Nippon Aerosil
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 2 Hydrophobic silica with a specific surface area of about 140 m 2 / g and carbon content of about 2.3% by mass obtained by surface treatment of hydrophilic silica produced by a dry process with trimethylsilyl group (trade name “AEROSIL RX200”, Nippon Aerosil) 6 parts), aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, urea 1 And 26 parts of calcium carbonate were mixed, a predetermined amount of water was added and kneaded, and then cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • AEROSIL RX200 trade name “AEROSIL RX200”, Nippon Aerosil” 6 parts
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 3 Hydrophobic silica with a specific surface area of about 35 m 2 / g and a carbon content of about 0.7% by mass obtained by surface treatment of hydrophilic silica produced by a dry process with trimethylsilyl group (trade name “AEROSIL RX50”, Nippon Aerosil) 6 parts), aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, urea 1 And 26 parts of calcium carbonate were mixed, a predetermined amount of water was added and kneaded, and then cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • AEROSIL RX50 Nippon Aerosil
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 4 48 parts of Pyroxylone, Hydrophobic silica produced by dry process with a trimethylsilyl group surface-treated with a specific surface area of about 260 m 2 / g and a carbon content of about 2.5% by weight hydrophobic silica (trade name “AEROSIL R812”, Nippon Aerosil 6 parts), aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, urea 1 And 26 parts of calcium carbonate were mixed, a predetermined amount of water was added and kneaded, and then cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • AEROSIL R812 Nippon Aerosil 6 parts
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 5 Hydrophobic silica with a specific surface area of about 220 m 2 / g and a carbon content of about 3.5% by weight obtained by subjecting hydrophilic silica produced by a dry method to surface treatment with a trimethylsilyl group (trade name “AEROSIL R812S”, Nippon Aerosil) 6 parts), aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, urea 1 And 26 parts of calcium carbonate were mixed, a predetermined amount of water was added and kneaded, and then cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • AEROSIL R812S trimethylsilyl group
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 6 Hydrophobic silica having a specific surface area of about 210 m 2 / g and a carbon content of about 4% by mass obtained by surface treatment of hydrophilic silica produced by a dry process with trimethylsilyl group (trade name “AEROSIL RX300”, manufactured by Nippon Aerosil Co., Ltd.) 6 parts, aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, urea 1 part and After mixing 26 parts of calcium carbonate, adding a predetermined amount of water and kneading, it was cut into a length of about 10 mm by a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • trimethylsilyl group trade name “AEROSIL RX300”, manufactured by Nippo
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 7 Hydrophobic silica with a specific surface area of about 110 m 2 / g and a carbon content of about 0.9% by mass obtained by surface treatment of hydrophilic silica produced by a dry process with dimethylsilyl groups (trade name “AEROSIL R972”, Japan) Aerosil) 6 parts, aryl sulfonate 10 parts, polycarboxylate 2 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 Part, 3 parts of bentonite, 1 part of urea and 24 parts of calcium carbonate, kneaded by adding a predetermined amount of water, and then extruding and granulating from a screen having an opening diameter of 5 mm, and a length of about 10 mm by a scraper.
  • AEROSIL R972 dimethylsilyl groups
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 8 2 parts of pyrimylsulfan, 8 parts of phenoxasulfone, 12 parts of benzobicyclone, specific surface area of about 170 m 2 / g, carbon content of about 1.2 mass % Hydrophobic silica (trade name “AEROSIL R974”, manufactured by Nippon Aerosil Co., Ltd.) 2 parts, aryl sulfonate 2.1 parts, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, polyacrylate 2 parts, After mixing 1 part of carboxymethylcellulose salt, 5 parts of phosphate cross-linked starch, 3 parts of polyalkylene glycol, 15 parts of diatomaceous earth, 5 parts of bentonite and 39 parts of clay, kneading with a predetermined amount of water, the opening diameter is 5 mm.
  • AEROSIL R974 manufactured by Nippon Aerosil Co., Ltd.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 10 2 parts of pyrimylsulfan, 8 parts of phenoxasulfone, 12 parts of benzobicyclone, a specific surface area of about 220 m 2 / g with a surface treatment of hydrophilic silica produced by a dry method with a trimethylsilyl group, and a carbon content of about 3.5% by mass 2 parts of hydrophobic silica (trade name “AEROSIL R812S”, manufactured by Nippon Aerosil Co., Ltd.), 2.1 parts of aryl sulfonate, 2 parts of polyoxyalkylene alkynyl glycol ether, 2 parts of plastic balloon, 2 parts of polyacrylate, carboxy After mixing 1 part of methylcellulose salt, 5 parts of phosphate cross-linked starch, 3 parts of polyalkylene glycol, 15 parts of diatomaceous earth, 5 parts of bentonite and 39 parts of clay, kneading with a predetermined amount of water, a screen having an opening diameter of
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 11 Hydrophobic silica having a specific surface area of about 110 m 2 / g and a carbon content of about 0.9% by mass, comprising 3 parts of pyrimisulphan, 12 parts of fenquinotrione, and hydrophilic silica produced by a dry process with a dimethylsilyl group.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 12 Hydrophobic silica having a specific surface area of about 110 m 2 / g and a carbon content of about 0.9% by mass, comprising 3 parts of pyrimisulphan, 12 parts of fenquinotrione, and hydrophilic silica produced by a dry process with a dimethylsilyl group.
  • AEROSIL R972 manufactured by Nippon Aerosil Co., Ltd.
  • aryl sulfonate 4 parts polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, shirasu balloon 10 parts, polyacrylate 6 parts, carboxymethyl cellulose salt 1 part, 5 parts of phosphoric acid cross-linked starch, 2 parts of polyalkylene glycol, 15 parts of diatomaceous earth and 34 parts of clay are mixed, kneaded with a predetermined amount of water, and then extruded and granulated from a screen having an opening diameter of 5 mm. Then, it was cut into a length of about 10 mm with a scraper.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Example 13 8 parts of fentolazamide, 8 parts of benzobicyclone, 30 parts of benzophenap, hydrophilic silica prepared by dry process with a trimethylsilyl group and having a specific surface area of about 140 m 2 / g and a carbon content of about 2.3% by weight Silica (trade name “AEROSIL RX200”, manufactured by Nippon Aerosil Co., Ltd.), 10 parts of aryl sulfonate, 2 parts of polycarboxylate, 1 part of polyoxyalkylene aryl ether sulfate, 1 part of polyoxyalkylene alkyl ether, poly 2 parts of oxyalkylene alkynyl glycol ether, 1 part of plastic balloon, 10 parts of bentonite, 5 parts of urea and 16 parts of calcium carbonate are mixed, kneaded after adding a predetermined amount of water, and then extruded and granulated from a screen having an opening diameter of 5 mm.
  • Silica trade name
  • a granular agricultural chemical composition having a minor axis of 5 mm and containing 46% by mass was obtained.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Hydrophobic silica (trade name “AEROSIL R104”, with a specific surface area of about 150 m 2 / g and a carbon content of about 1.5% by mass obtained by surface treatment of hydrophilic silica produced by a dry method with dimethylpolysiloxane group, 48 parts of pyroxylone Nippon Aerosil Co., Ltd.) 6 parts, aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, After mixing 1 part of urea and 26 parts of calcium carbonate, adding a predetermined amount of water and kneading, it was cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • AEROSIL R104 trade name “AEROSIL
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Hydrophobic silica (trade name “AEROSIL R816”, having a specific surface area of about 190 m 2 / g and a carbon content of about 1.4% by mass, obtained by surface treatment of hydrophilic silica produced by a dry method with hexadecylsilyl group, 48 parts by weight of pyroxylone Nippon Aerosil Co., Ltd.) 6 parts, aryl sulfonate 10 parts, polyoxyalkylene aryl ether sulfate 1 part, polyoxyalkylene alkyl ether 1 part, polyoxyalkylene alkynyl glycol ether 2 parts, plastic balloon 2 parts, bentonite 3 parts, After mixing 1 part of urea and 26 parts of calcium carbonate, adding a predetermined amount of water and kneading, it was cut into a length of about 10 mm with a scraper while extruding and granulating from a screen having an opening diameter of 5 mm.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • a scraper While extruding and granulating from the screen, a scraper was cut into a length of about 10 mm. Put the resulting granulated material in a horizontally placed drum, rotate the drum until it has an external shape composed of curved surfaces, give it a movement to roll into the granulated material, dry with hot air, and add the agrochemical active ingredient A granular agricultural chemical composition having a minor axis of 5 mm and containing 22% by mass was obtained.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • This granular pesticide composition has a particle size distribution of 80% or more when the particle size is 3 mm or more, the property of floating on the water surface, the ratio of the short diameter to the long diameter is about 2, and the external shape in which the particle surface is curved. Had.
  • Test Example 1 One grain of the agrochemical granular composition obtained in Examples and Comparative Examples was put into a water tank filled with room temperature industrial water, and the time required for the decay of the agrochemical granular composition floating on the water surface was measured. If the agrochemical granular composition settled before the disintegration was completed, this was recorded. In addition, the presence or absence of visible undispersed particles on the water surface and in water was observed 30 minutes and 1 hour after the end of disintegration and the granular agrochemical composition was sprayed on the water surface. However, when it took more than 1 hour for the agricultural chemical granular composition to collapse on the water surface, the test was terminated at that time. The results are shown in Table 1.
  • the composition contains an agrochemical active ingredient, and those having a particle size of 3 mm or more have a particle size distribution of 80% or more and a property of floating on the water surface, and are disintegrated on the water surface within 30 minutes. It is possible to provide a granular agrochemical composition that improves the dispersion and suspension of the agrochemical active ingredient after being disintegrated on the water surface, that is, excellent in self-diffusion. Moreover, the granular agrochemical composition of this invention is excellent also in disintegration.

Landscapes

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

Abstract

L'invention concerne une composition de pesticide en granulés flottant à la surface de l'eau. En outre, l'invention a pour objet de fournir une composition de pesticide en granulés dans laquelle la dispersibilité et la suspensibilité d'une matière active de pesticide après dégradation de ladite composition à la surface de l'eau, sont améliorées, et qui est dotée d'excellentes propriétés de diffusion. À cet effet, la composition de pesticide en granulés est caractéristique en ce qu'elle comprend une matière active de pesticide, une silice, un tensio-actif, un corps creux et un support solide, et présente une distribution granulométrique telle que les grains de diamètre supérieur ou égal à 3mm représentent 80% ou plus, et une disposition à flotter à la surface de l'eau et à se dégrader à la surface de l'eau en 30 minutes. Ladite silice consiste en une silice ayant subi une silylation polyméthyl dont la surface de silice hydrophile est modifiée par un groupe diméthylsilyle ou un groupe triméthylsilyle.
PCT/JP2016/078871 2015-10-14 2016-09-29 Composition de pesticide en granulés Ceased WO2017065015A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680051222.3A CN107949278B (zh) 2015-10-14 2016-09-29 粒状农药组合物
JP2017545143A JP6732774B2 (ja) 2015-10-14 2016-09-29 粒状農薬組成物
KR1020187004827A KR102710985B1 (ko) 2015-10-14 2016-09-29 입상 농약 조성물

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-203025 2015-10-14
JP2015203025 2015-10-14

Publications (1)

Publication Number Publication Date
WO2017065015A1 true WO2017065015A1 (fr) 2017-04-20

Family

ID=58517641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/078871 Ceased WO2017065015A1 (fr) 2015-10-14 2016-09-29 Composition de pesticide en granulés

Country Status (4)

Country Link
JP (1) JP6732774B2 (fr)
KR (1) KR102710985B1 (fr)
CN (1) CN107949278B (fr)
WO (1) WO2017065015A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019019062A (ja) * 2017-07-13 2019-02-07 クミアイ化学工業株式会社 農薬活性成分の溶出が制御された農薬組成物
WO2020027329A1 (fr) * 2018-08-03 2020-02-06 北興化学工業株式会社 Préparation agrochimique flottant à la surface de l'eau
WO2020217701A1 (fr) * 2019-04-25 2020-10-29 クミアイ化学工業株式会社 Composition agrochimique granulaire et son procédé d'application

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114982751B (zh) * 2022-07-01 2023-10-03 河北双吉化工有限公司 一种稳定性好的农药水分散粒剂的生产工艺
CN116715903A (zh) * 2023-06-16 2023-09-08 湖南工业大学 一种疏水性淀粉基发泡材料的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002179507A (ja) * 2000-10-05 2002-06-26 Kumiai Chem Ind Co Ltd 均一拡散性粒状農薬製剤およびその散布方法
JP2004123664A (ja) * 2002-10-07 2004-04-22 Nissan Chem Ind Ltd 農薬組成物の成型方法
WO2007007629A1 (fr) * 2005-07-08 2007-01-18 Kumiai Chemical Industry Co., Ltd. Composition herbicide

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US179507A (en) 1876-07-04 Improvement in vegetable-cutters
JPH05194105A (ja) * 1991-09-25 1993-08-03 Sankyo Co Ltd 農薬組成物及びその施用方法
TW226959B (fr) * 1991-09-25 1994-07-21 Sankyo Co
KR100347392B1 (ko) * 1994-08-04 2002-11-09 상꾜 가부시키가이샤 농약입제
JPH10109905A (ja) * 1996-10-03 1998-04-28 Kumiai Chem Ind Co Ltd 粒状農薬組成物及びその散布方法
JP3808637B2 (ja) * 1998-09-11 2006-08-16 住友化学株式会社 農薬粒剤
KR100766754B1 (ko) * 1999-04-09 2007-10-17 상꾜 아그로 가부시키가이샤 수면부유성 농약고형제제
TWI245601B (en) * 2001-09-26 2005-12-21 Kumiai Chemical Industry Co Granular agricultural chemical preparations and its scattering method with uniformly diffusivity
JP5842374B2 (ja) * 2011-04-27 2016-01-13 住友化学株式会社 粒状農薬組成物
US9005584B2 (en) * 2012-06-08 2015-04-14 S.C. Johnson & Son, Inc. Spray formulations with reduced clogging/sedimentation characteristics

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002179507A (ja) * 2000-10-05 2002-06-26 Kumiai Chem Ind Co Ltd 均一拡散性粒状農薬製剤およびその散布方法
JP2004123664A (ja) * 2002-10-07 2004-04-22 Nissan Chem Ind Ltd 農薬組成物の成型方法
WO2007007629A1 (fr) * 2005-07-08 2007-01-18 Kumiai Chemical Industry Co., Ltd. Composition herbicide

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019019062A (ja) * 2017-07-13 2019-02-07 クミアイ化学工業株式会社 農薬活性成分の溶出が制御された農薬組成物
WO2020027329A1 (fr) * 2018-08-03 2020-02-06 北興化学工業株式会社 Préparation agrochimique flottant à la surface de l'eau
KR20210040400A (ko) * 2018-08-03 2021-04-13 혹꼬우 가가꾸 고오교오 가부시끼가이샤 수면 부유성 농약 제제
JPWO2020027329A1 (ja) * 2018-08-03 2021-08-12 北興化学工業株式会社 水面浮遊性農薬製剤
JP7389746B2 (ja) 2018-08-03 2023-11-30 北興化学工業株式会社 水面浮遊性農薬製剤
KR102816126B1 (ko) 2018-08-03 2025-05-30 혹꼬우 가가꾸 고오교오 가부시끼가이샤 수면 부유성 농약 제제
WO2020217701A1 (fr) * 2019-04-25 2020-10-29 クミアイ化学工業株式会社 Composition agrochimique granulaire et son procédé d'application
JPWO2020217701A1 (fr) * 2019-04-25 2020-10-29
JP7350844B2 (ja) 2019-04-25 2023-09-26 クミアイ化学工業株式会社 粒状農薬組成物およびこれの散布方法

Also Published As

Publication number Publication date
CN107949278B (zh) 2021-01-15
JP6732774B2 (ja) 2020-07-29
KR20180064374A (ko) 2018-06-14
KR102710985B1 (ko) 2024-09-27
CN107949278A (zh) 2018-04-20
JPWO2017065015A1 (ja) 2018-08-02

Similar Documents

Publication Publication Date Title
WO2017065015A1 (fr) Composition de pesticide en granulés
JP6732772B2 (ja) 粒状農薬組成物及びその製造方法
JP6608851B2 (ja) 水面浮遊性大型農薬粒状組成物およびその製造方法
WO2017065014A1 (fr) Composition de pesticide en granulés
WO2017094677A1 (fr) Composition de suspension aqueuse agrochimique et procédé pour la disperser
JP2017039650A (ja) 農薬組成物及びその使用法
JP6633554B2 (ja) 粒状農薬組成物およびその製造方法
WO2017094676A1 (fr) Composition agrochimique en suspension aqueuse
PT930822E (pt) Composicoes agroquimicas
JP6457495B2 (ja) 水面浮遊性大型農薬粒状組成物およびその製造方法
WO2017094678A1 (fr) Composition agrochimique et son procédé de dispersion
WO2020217701A1 (fr) Composition agrochimique granulaire et son procédé d&#39;application
JPWO2018139173A1 (ja) 混合粒状農薬組成物、これを利用した粒状農薬合剤および粒状農薬合剤キット
JP6774204B2 (ja) 粒状農薬組成物およびその製造方法
WO2021085395A1 (fr) Composition agrochimique et son procédé de production
JP2019019062A (ja) 農薬活性成分の溶出が制御された農薬組成物
JP2021058164A (ja) 農業用粒状組成物の散布方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16855269

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20187004827

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2017545143

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16855269

Country of ref document: EP

Kind code of ref document: A1