JP2012051871A - Aqueous suspended agrochemical composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new aqueous suspended agrochemical composition.SOLUTION: This aqueous suspended agrochemical composition is provided by including (1) an agrochemically active ingredient, (2) a carboxymethylcellulose salt, (3) a montmorillonite mineral-based inorganic thickening agent, (4) a surfactant and (5) water, provided that the aqueous suspended herbicide composition containing a sulfonylurea herbicide active ingredient expressed by formula (I) [wherein, Ris a halogen atom; and Ris a 2-4C alkyl or cyclopropyl], the carboxymethylcellulose salt, a lignin sulfonic acid salt, the surfactant and water is excluded.

Description

  The present invention relates to an aqueous suspension agricultural chemical composition that is low in viscosity and easy to use and has excellent uniform stability during storage.

  An aqueous suspension pesticide composition in which a poorly water-soluble pesticide active ingredient is dispersed in water is difficult to ensure the uniformity of the composition under high temperature conditions, and may cause separation of the supernatant or hard caking. If the composition becomes non-uniform during storage, it becomes impossible to spray a predetermined amount, resulting in a risk of insufficient efficacy and phytotoxicity. In particular, when agrochemical active ingredient particles grow during storage, the particles tend to settle during storage and become more uneven.

  As a method for increasing the uniformity of the composition, it is known to increase the viscosity of the composition in order to prevent sedimentation of the pesticidal active ingredient particles. However, according to this method, it becomes difficult to take out the agrochemical composition from the container, the usability is deteriorated, and a large amount of the agrochemical composition remains in the container after use, which is not environmentally preferable when the container is discarded.

  Therefore, there is a demand for a technique for realizing an aqueous suspension composition that has a low viscosity, is easy to use, and has good uniform stability during storage.

  On the other hand, as an aqueous suspension composition in which the growth of agricultural chemical active ingredient particles during storage is prevented, an aqueous suspension herbicide containing a sulfonylurea herbicidal active compound, carboxymethylcellulose salt, lignin sulfonate, surfactant and water An agent composition is known (Patent Document 1 below).

JP 2008-066942 A

  The present invention solves the above-mentioned problems, and its object is to provide an aqueous suspension that is easy to use and has improved uniform stability during storage even if the agrochemical active ingredient particles grow during storage. It is to provide a suspended agrochemical composition.

  As a result of intensive studies, the present inventors have found that in an aqueous suspension agricultural chemical composition containing an agricultural chemical active ingredient, a carboxymethyl cellulose salt, a montmorillonite mineral-based inorganic thickener, a surfactant and water, the composition has a low viscosity. However, even if the agricultural chemical active ingredient particles grew during storage, it was found that there was almost no separation of the supernatant after storage and the viscosity was stable.

  That is, the present invention relates to an aqueous suspended agricultural chemical composition (hereinafter referred to as the present invention composition) described in [1] to [4] below.

[1] Aqueous suspension pesticide composition containing (1) agrochemical active ingredient, (2) carboxymethylcellulose salt, (3) montmorillonite mineral-based inorganic thickener, (4) surfactant, and (5) water .
(However, the formula (I)

[Wherein, R ¹ represents a halogen atom, and R ² represents a C2-4 alkyl group or a cyclopropyl group. ] An aqueous suspension herbicide composition containing a sulfonylurea herbicidal active compound, a carboxymethylcellulose salt, a lignin sulfonate, a surfactant and water. )
[2] (4) Surfactant is alkylbenzene sulfonate, alkyl naphthalene sulfonate, formalin condensate of naphthalene sulfonic acid, formalin condensate of alkyl naphthalene sulfonic acid, formalin condensate of phenol sulfonic acid, polyoxyalkylene The aqueous suspended pesticidal composition according to the above [1], which is at least one selected from aryl phenyl ether sulfate, polyoxyalkylene aryl phenyl ether, dialkyl sulfosuccinate and polycarboxylate.

  [3] (4) Surfactant is alkylbenzene sulfonate, alkyl naphthalene sulfonate, formalin condensate of naphthalene sulfonic acid, formalin condensate of alkyl naphthalene sulfonic acid, formalin condensate of phenol sulfonic acid, polyoxyethylene The aqueous suspended agricultural chemical composition according to the above [1], which is at least one selected from arylphenyl ether sulfate ester salt, a mixture of polyoxyethylene arylphenyl ether and dialkylsulfosuccinate and polycarboxylate.

  [4] The aqueous suspended agricultural chemical composition according to the above [2] or [3], further comprising an acetylene surfactant.

  Although the aqueous suspension pesticide composition of the present invention has a low viscosity, even if the pesticide active ingredient particles grow during storage and the particle size becomes large, there is almost no separation of the supernatant. Moreover, the effect that it is excellent in the viscosity stability of this composition is also show | played.

  The pesticidal active ingredient contained in the aqueous suspension pesticidal composition of the present invention is not particularly limited, and it may be solid or liquid at room temperature. Examples of the agrochemical active ingredient include herbicides, insecticides, acaricides, nematicides, antiviral agents, plant growth regulators, fungicides, synergists, attractants and repellents. An example of the general name is as follows.

  Herbicides: pyrazosulfuron ethyl, halosulfuron methyl, bensulfuron methyl, imazosulfuron, azimsulfuron, cinosulfuron, cyclosulfamuron ), Ethoxysulfuron, quinoclamin, metazosulfron, pyraclonil, aminocyclopyrachlor, tefuryltrione, mesotrione, pyrimisulfan , Penoxsulam, aminopyralid, bencarbazone, orthosulfamrun, flucetosulfuron, monosulfuro n), monosulfuron-methyl, pinoxaden, propoxycarbazone-sodium, pyrasulfotole, pyroxasulfone, pyroxsulam, tembotrione ), Thiencarbazone-methyl, topramezon, metamitron, esprocarb, benthiocarb, molinate, dimepiperate, pyributicarb, mefenacet (mefenacet) ), Butachlor, pretilachlor, tenylchlor, bromobutide, etobenzanid, dymron, cumyluron, bentazo (Bentazone), pyriftalide, bispyribac, bentazone salt, 2,4-D, 2,4-D salt, 2,4-D ester, MCP, MCP salt, MCP ester, MCPB, salt of MCPB, ester of MCPB, phenothiol (MCPA-thioethyl), clomeprop (clomeprop), naproanilide, oxadiazon, pyrazolate, pyrazoxyfen, benzofenap, Oxadiargyl, dimethametryn, simetryn, piperophos, anilofos, butamifos, bensulide, dithiopyr, pyrinobac methyl, pyriminoacmethyl , Chlormethoxyni l), cyhalofop butyl, bifenox, cafenstrole, pentoxazone, indanofan, oxaziclomefone, fentrazamide, butenachlor, ACN, Benzobicyclon, benfuresate, cymmethylin, simazine, dichlobenil, diuron, chloro IPC (chlorpropham), atrazine, alachlor, isouron ( isouron, chlorphtalim, cyanazin, trifluralin, butamifos, quinclorac, propyzamide, promethrin, pendim Phosphorus (pendimethalin), metolachlor, metribuzin, linuron, lenacil, propanil, MCPA, ioxynil octanoate, ashlam, quizalofopop -ethyl, propaquizafop, quizalofop-tefuryl, sethoxydim, thifensulfuron-methyl, fenoxaprop-ethyl, fenmedyfam (Phenmedipham), fluazifop-butyl, bentazone, SAP (bensulide), TCTP (chlorthal-dimethyl, tetorachlorothiophene), amiprophosmethyl, amethrin, isoxaben , Orbencarb, carb Karbutilate, dithiopyr, siduron, thiazafluron, napropamide, prodiamine, bethrodine, methyl dymron, 2,4-PA, MCPPA , Flazasulfuron, metsulfuron-methyl, imazaquin, imazapyr, tetrapropion, tebuthiuron, bromacil, hexazinone, glyphosate ammonium, glyphosate ammonium (Glyphosate-ammonium), glyphosate-iso-propylammonium, glyphosate-trimesium, glyphosate-sodium, glyphosate-potassium, beer Phosphite (bialaphos), glufosinate (glufosinate-ammonium), OK-701 (Test name), HOK-201 (Test name), TH-547 (Test name) and MCC.

Insecticides: rynaxypyr, abamectin, acephate, acetamiprid, alaniccarb, aldicarb, allethrin, azamethiphos, azinphos-ethyl ), Azinphos-methyl, bacillus thuringiensis, bendiocarb, benfluthrin, benfuracarb, bensultap, bifenthrin, bioarthrin bioallethrin, bioresmethrin, bistrifluron, buprofezin, butocarboxim, carbaryl, carbofuran, carbofuran, carbosulfan sulfan, cartap, chlorantraniliprole, chlorethoxyfos, chlorfenapyr, chlorfenvinphos, chlorfluazuron, chlormephos, Chlorpyrifos, chlorpyrifos-methyl, chromafenozide, clothianidin, cyanophos, cyanophos, cyantraniliprole, cycloprothrin, cyfluthrin, beta -Cyfluthrin (beta-cyfluthrin), cyhalothrin, gamma-cyhalothrin, lambda-cyhalothrin, cypermethrin, alpha-cypermethrin (al pha-cypermethrin, beta-cypermethrin, zeta-cypermethrin, cyphenothrin, cyromazine, deltamethrin, diafenthiuron, diazinon (Diazinon), dichlorvos, diflubenzuron, dimethoate, dimethylvinphos, dinotefuran, diofenolan, disulfoton, emamectin-benzoate, emamectin-benzoate (Empenthrin), endosulfan (endosulfan), alpha-endosulfan (alpha-endosulfan), EPN (EPN), esfenvalerate (esfenvalerate), etiofencarb (ethiofencarb), ethiprole (ethiprole) Etofenprox, etrimfos, fenitrothion, fenobucarb, phenoxycarb, fenthion, fenvalerate, fipronil, flonicamid, flonicamid (Fluazuron), flubendiamide, flucycloxuron, flucythrinate, flufenerim, flufenoxuron, flumethrin, fluvalinate, tau- Fluvalinate, tono-fluvalinate, fonofos, furathiocarb, halofenozide, hexaflumuron, hydramethylnon, imidacloprid (imidacloprid) prid), imiprothrin, indoxacarb, indoxacarb-MP, indoxacarb-MP, isoprocarb, isoxathion, lepimectin, lufenuron, malathion , Meperfluthrin, metaflumizone, metaldehyde, methacrifos, methamidophos, methidathion, methomyl, methoprene, methoxychlor, methoxyozodi ), Metoflyl, parathion-methyl, permethrin, phenothrin, phenthoate, phorate, phosalone Phosmet, phoxim, pirimicarb, pirimiphos-methyl, profenfos, prothiofos, pymetrozine, pyraclofos, pyrethrins, pyrethrins (Pyridalyl), pyrifluquinazon, pyriprole, pyriproxyfen, resmethrin, rotenone, silafluofen, spinetram, spinosad, spirotetrad spirotetramat), sulfotep, sulfoxaflor, tebufenozide, teflubenzuron, teflubenzuron, uthrin, muscalure, nitenpyram , Novaluron, noviflumuron, omethoate, oxydemeton-methtefluthrin, terbufos, tetrachlorvinphos, tetramethrin, d-T-80-phthalthrin (D-tetramethrin), tetramethylfluthrin, thiacloprid, thiamethoxam, thiocyclam, thiodicarb, thiofanox, thiometon, tolfenpyrad , Tralomethrin, transfluthrin, triazamate, trichlorfon, and triflumuron.

  Acaricides: acequinocyl, acrinathrin, amidoflumet, amitraz, azocyclotin, benzoximate, bifenazate, bromopropylate, clopropylate Clofentezine, cyenopyrafen, cyflumetofen, dicohol, dinochlor, etoxazole, fenazaquin, fenbutatin oxide, phenocarb, fenothiocarb Propatrin (fenpropathrin), fenpyroximate (flupyryoximate), fluacrypyrim (fluacrypyrim), formethanate (formetanate), halfenprox (halfenprox), hexythiazox (hexythia zox, milbemectin, propargite, pyridaben, pyrimidifen, spirodiclofen, spiromesifen, tebufenpyrad and NNI-0711 (test name).

  Nematicides: cadusafos, dichlofenthion, etoprophos, fenamiphos, fluensulfone, fosthiazate, fostthietan, fosthietan, phosphat , Isazofos, methyl bromide, methyl isothiocyanate, oxamyl, sodium azide, BYI-1921 (test name) and MAI-08015 (test name) .

  Anthelmintic: acriflavine, albendazole, atovaguone, azithromycin, carnidazole, chloroquine, clazuril, clindamycin hydrochloride, coumaphos coumaphos, cymiazol, diethylcarbamazine, diminazene, doxycycline hydrochloride, dramectin, emodepside, eprinomectin, febantel, febantel fenbendazole, furazolidone, imidocarb, ivermectin, ilevmectin, levamisole, mebendazole, mefloquine, metronidazo Metronidazole, milbemycine oxime, moxidectin, niclosamide, praziquantel, primaquine, propetamphos, propoxur, pyrantel pamoate Pyrimethamine, selamectin, sulfadimethoxine, sulfadoxine, sulfamerazine, sulfamonomethoxine, sulfamoildapsone, tinidazole, tinidazole (Toltrazuril) and triclabendazole.

  Bactericides: acibenzolar-S-methyl, acipetacs, aldimorph, ametoctradin, amisulbrom, amobam, ampropylfos, anilazine ( anilazine, azaconazole, azoxystrobin, benalaxyl, benalaxyl-M, benodanil, benomyl, benthiavalicarb-isopropyl ), Benthiazole, biphenyl, bitertanol, bixafen, bordeaux mixture, boscalid, bromuconazole, bupirimate, lime sulfur combination (Calcium polysulfide), Captan, carbendazim, carboxin, carpropamid, carvone, carvone, cheshunt mixture, chinomethionat, chloroneb, chloropicrin , Chlorothalonil, chlozolinate, climbazole, basic carbonate, copper carbonate, copper hydroxide, copper naphthenate, copper oleate (copper) oleate, copper oxychloride, copper sulfate, copper sulfate, basic, cresol, cufraneb, cyazofamid, cyflufenamid, Simoxanil, cyproco Cycloconazole, cyprodinil, dazomet, dichlofluanid, dichlorophen, dichlorolorazol, diclocymet, diclomezine, dicloran , Dietofencarb, difenoconazole, diflumetorim, dimethomorph, dimoxystrobin, dinicoazole, diniconazole-M, diniconazole-dinobut, dinobuton dinocap), dinocap-4, dinocap-6, diphenylamine, dithianon, DNOC, dodemorph-acetate, dodine ) Drazoxolon, edifenphos, enestrobin, epoxiconazole, etaconazole, ethaboxam, etilimol, ethoxyquin, etridiazole, etridiazole (Famoxadone), fenamidone, fenarimol, fenbuconazole, fenfuram, fenhexamid, fenitropan, fenoxanil, fenpiclonil, fenpiclonil Propidine (fenpropidin), fenpropimorph, fentin, ferbam, ferimzone, fluazinam, fludioxonil, fludioxonil Morph (flumorph), fluopicolide, fluopyram, fluorimide, fluotrimazole, fluoxastrobin, fluquinconazole, flusilazole, flusulfamide ), Flutianil, flutolanil, flutriafol, fluxapyroxad, folpet, fosetyl-aluminium, fuberidazole, fluralaxyl ), Furametpyr, Furconazole, Furmecyclox, Guazatine, Hexachlorobenzene, Hexaconazole, Himexazole hymexazol, imazalil, imibenconazole, iminoctadine-albesilate, iminoctadine-triacetate, ipconazole, iprobenfos, iprobenfos, iprobenfos, iprobenfos, iprobenfos Iprovalicarb, isoprothiolane, isopyrazam, isotianil, kasugamycin, kresoxim-methyl, laminarin, mancopper, mancozeb, mancozeb Mandipropamid, maneb, mepanipyrim, mepronil, metalaxyl, metalaxyl-M, metam, metconazole, metconazole, meconipyrim Methfuroxam, metiram, metinominostrobin, metrafenone, metsulfovax, milneb, microbutanil, nabam, natamycin, natamycin Nickel bis (dimethyldithiocarbamate), nitrothal-isopropyl, nuarimol, ofurace, orysastrobin, oxadixyl, oxine copper, oxpoco Oxpoconazole fumarate, oxycarboxin, pefurazoate, penconazole, penciclone, penflufen, pentachlorophenol (PCP) Penthiopyrad, 2-phenylphenol, phthalide, picoxystrobin, piperalin, polycarbamate, polyoxins, polyoxin-D (polyoxorim), Potassium azide, potassium hydrogen carbonate, probenazole, prochloraz, procymidone, propamocarb hydrochloride, propiconcarb, propineb , Proquinazid, prothioconazole, pyraclostrobin, pyrametostrobin, pyraoxystrobin, pyrazophos, pyriben Ruribmethyl (pyribencarb-methyl), pyrifenox (pyrimethanil), pyriofenone (pyriofenone), pyroquilon, pyroquinon, quinacetol-sulfate, quinoxyfen, quintozene, quintozene sedaxane, silthiofam, simeconazole, sodium hydrogen carbonate, sodium hypochlorite, spiroxamine, sulfur, tebuconazole, tebufloquin ), Tecolam, tetraconazole, thiabendazole, thifluzamide, thiophanate-methyl, thiram, thiadinyl, tolu Lofos-methyl, tolylfluanid, triadimefon, triadimenol, triazoxide, tributyltin oxide, tricyclazole, tridemorph , Trifloxystrobin, triflumizole, triforine, triticonazole, validamycin, valifenalate, vinclozolin, zinc naphthenate naphthenate, zinc sulfate, ziram, zoxamide, shiitake mycelium extract, shiitake fruiting body extract, BCF-082 (test name) and ZF-9646 (test name).

  Antibacterial agents: bethoxazin, bithionol, bronopol, nitrapyrin, octhilinone, oxolinic acid, oxytetracycline, streptomycin, calcined shellfish (streptomycin) Calcium oxide), Talaromyces spp., Trichoderma spp. And Unioniolium spp. Of the above pesticidal active ingredients, sulfonylurea compounds are preferred.

The content of the pesticidal active ingredient in the aqueous suspension pesticide composition of the present invention is usually 0.001 to 50 parts by weight, more preferably 0.001 to 10 parts by weight, with respect to 100 parts by weight of the present composition. More preferably, it is 0.001-5 weight part, More preferably, it is 0.001-3 weight part.
The aqueous suspension pesticide composition of the present invention can contain two or more different pesticidal active ingredients, and the ratio in the case of mixing can be freely selected.
Examples of the salt in the carboxymethylcellulose salt used in the present invention include sodium salt and calcium salt. Specific examples of the carboxymethyl cellulose salt include the following. Serogen 5A (trade name, manufactured by Daiichi Kogyo Seiyaku), Serogen 6A (trade name, manufactured by Daiichi Kogyo Seiyaku), Serogen 7A (trade name, manufactured by Daiichi Kogyo Seiyaku), Serogen PR (trade name, manufactured by Daiichi Kogyo Seiyaku) ), CMC Daicel 1110 (trade name, manufactured by Daicel Chemical Industries), Sunrose FT-1 (trade name, manufactured by Nippon Paper Chemicals) and the like. The content of the carboxymethyl cellulose salt in the aqueous suspension pesticide composition of the present invention is usually 0.001 to 50 parts by weight, more preferably 0.001 to 10 parts by weight, with respect to 100 parts by weight of the present composition. More preferably, it is 0.001-5 weight part, More preferably, it is 0.001-3 weight part.

Examples of the montmorillonite mineral-based inorganic thickener used in the present invention include sodium montmorillonite and calcium montmorillonite. Specific examples include the following. Examples include Kunipia F (trade name, manufactured by Kunimine Industries), Kunipia K (trade name, manufactured by Kunimine Industries). The content of the montmorillonite mineral-based inorganic thickener in the aqueous suspension pesticide composition of the present invention is usually 0.001 to 50 parts by weight, more preferably 0.001 to 100 parts by weight of the composition of the present invention. The amount is 10 parts by weight, more preferably 0.001 to 5 parts by weight, and still more preferably 0.001 to 3 parts by weight.
Alkylbenzenesulfonate, alkylnaphthalenesulfonate, formalin condensate of naphthalenesulfonic acid, formalin condensate of alkylnaphthalenesulfonic acid, formalin condensate of phenolsulfonic acid, polyoxyalkylene in the aqueous suspension agricultural chemical composition of the present invention The total content of one or more surfactants selected from arylphenyl ether sulfate ester salts, polyoxyalkylene arylphenyl ethers, dialkylsulfosuccinates and polycarboxylates can be selected as appropriate, and is 100 parts by weight of the composition of the present invention. On the other hand, it is usually 0.01 to 5 parts by weight, more preferably 0.01 to 3 parts by weight.

  Examples of the polyoxyalkylene arylphenyl ether include polyoxyethylene (mono, di or tri) phenyl phenyl ether, polyoxyethylene (mono, di or tri) benzyl phenyl ether, polyoxypropylene (mono, di or tri) benzyl Examples include phenyl ether, polyoxyethylene (mono, di or tri) styryl phenyl ether, polyoxypropylene (mono, di or tri) styryl phenyl ether, polyoxyethylene polyoxypropylene (mono, di or tri) styryl phenyl ether. .

Examples of the polycarboxylate include polyacrylic acid, polymethacrylic acid, polymaleic acid, polymaleic anhydride, maleic acid or a copolymer of maleic anhydride and an olefin (such as isobutylene and diisobutylene), acrylic Copolymer of acid and itaconic acid, copolymer of methacrylic acid and itaconic acid, copolymer of maleic acid or maleic anhydride and styrene, copolymer of acrylic acid and methacrylic acid, acrylic acid and methyl acrylate Copolymer of ester, copolymer of acrylic acid and vinyl acetate, copolymer of acrylic acid and maleic acid or maleic anhydride, polyoxyethylene alkyl (e.g. _C8-18 ) ether acetic acid, N-methyl- fatty acids (e.g., _{C 8 to 18)} sarcosinates, resin acids and fatty acids (e.g., _{C 8 to 18} And salts of carboxylic acids and the like. Examples of the counter ion of the salt include alkali metals (such as lithium, sodium and potassium), alkaline earth metals (such as calcium and magnesium), ammonium and various amines (such as alkylamine, cycloalkylamine and alkanolamine). It is done.

  Examples of the polyoxyalkylene aryl phenyl ether sulfate salt include polyoxyethylene (mono, di or tri) phenyl phenyl ether sulfate, polyoxyethylene (mono, di or tri) benzyl phenyl ether sulfate, polyoxyethylene ( And sulfate salts of mono-, di- or tri) styryl phenyl ether polymers and sulfate salts of polyoxyethylene polyoxypropylene block polymers. Examples of the counter ion of the salt include alkali metals (such as lithium, sodium and potassium), alkaline earth metals (such as calcium and magnesium), ammonium and various amines (such as alkylamine, cycloalkylamine and alkanolamine). It is done.

In the composition of the present invention, alkylbenzene sulfonate, naphthalene sulfonic acid formalin condensate, alkyl naphthalene sulfonate, naphthalene sulfonic acid formalin condensate, alkyl naphthalene sulfonic acid formalin condensate, phenol sulfonic acid Surfactants other than one or more surfactants selected from formalin condensates, polyoxyalkylene aryl phenyl ether sulfates, polyoxyalkylene aryl phenyl ethers, dialkyl sulfosuccinates and polycarboxylates (hereinafter, other It is also possible to add a surfactant). Examples of these surfactants include the following (A), (B), (C), (D) and (E).
Examples of the surfactant used in the present invention include the following (A), (B), (C), (D) and (E).

(A) Nonionic surfactant:
(A-1) Polyethylene glycol type surfactant: For example, polyoxyethylene alkyl (for example, C _8-18 ) ether, ethylene oxide adduct of alkyl naphthol, polyoxyethylene (mono or di) alkyl (for example, C _8-12 ) ) Phenyl ether, polyoxyethylene (mono or di) alkyl (eg C _8-12 ) phenyl ether formalin condensate, polyoxyethylene (mono, di or tri) styryl phenyl ether polymer, polyoxyethylene polyoxypropylene block Polymers, alkyl (eg C _8-18 ) polyoxyethylene polyoxypropylene block polymer ethers, alkyl (eg C _8-12 ) phenyl polyoxyethylene polyoxypropylene block polymer ethers, polymers Reoxyethylene bisphenyl ether, polyoxyethylene resin acid ester, polyoxyethylene fatty acid (eg C _8-18 ) monoester, polyoxyethylene fatty acid (eg C _8-18 ) diester, polyoxyethylene sorbitan (mono, di or Tri) fatty acid (e.g. _C8-18 ) ester, glycerol fatty acid ester ethylene oxide adduct, castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct, alkyl (e.g. _C8-18 ) amine ethylene oxide adduct and fatty acid (For example, _C8-18 ) Amidoethylene oxide adduct and the like.

(A-2) Polyhydric alcohol type surfactant: For example, glycerol fatty acid ester, polyglycerin fatty acid ester, pentaerythritol fatty acid ester, sorbitol fatty acid (eg C _8-18 ) ester, sorbitan (mono, di or tri) fatty acid ( For example, _C8-18 ) esters, sucrose fatty acid esters, polyhydric alcohol alkyl ethers, alkyl glycosides, alkyl polyglycosides and fatty acid alkanolamides.

  (A-3) Acetylene-based surfactant: for example, acetylene alcohol, acetylene glycol, ethylene oxide adduct of acetylene alcohol, ethylene oxide adduct of acetylene glycol, and the like.

(B) Anionic surfactant:
(B-1) Sulfate ester type surfactant: For example, alkyl (eg C _8-18 ) sulfate ester, polyoxyethylene alkyl (eg C _8-18 ) ether sulfate ester, polyoxyethylene (mono or di) alkyl ( For example, C _8-12 ) phenyl ether sulfate, polyoxyethylene (mono or di) alkyl (eg C _8-12 ) phenyl ether polymer sulfate, sulfated oil, sulfated fatty acid ester, sulfated fatty acid and sulfate Sulfate esters such as olefins, and salts of these sulfate esters.

(B-2) Sulfonic acid type surfactant: For example, paraffin (eg C _8-22 ) sulfonic acid, alkyl (eg C _8-12 ) benzenesulfonic acid formalin condensate, cresol sulfonic acid formalin condensate, α _-Olefin (e.g. _C8-16 ) sulfonic acid, lignin sulfonic acid, polyoxyethylene (mono or di) alkyl (e.g. _C8-12 ) phenyl ether sulfonic acid, polyoxyethylene alkyl (e.g. _C8-18 ) ether sulfosuccinate Acid half esters, formalin condensates of creosote oil sulfonic acid, alkyl (eg C _8-12 ) diphenyl ether disulfonic acid, Igepon T (trade name), polystyrene sulfonic acid and copolymers of styrene sulfonic acid and methacrylic acid, etc. Sulfonic acids and their Salt of the acid.

(B-3) Phosphate ester type surfactants: For example, alkyl (eg C _8-12 ) phosphate ester, polyoxyethylene alkyl (eg C _8-18 ) ether phosphate ester, polyoxyethylene (mono or di) alkyl ( For example, C _8-12 ) phenyl ether phosphate ester, polyoxyethylene (mono, di or tri) alkyl (eg C _8-12 ) phenyl ether polymer phosphate ester, polyoxyethylene (mono, di or tri) phenyl phenyl ether Phosphate esters, polyoxyethylene (mono, di or tri) benzylphenyl ether phosphate esters, phosphate esters of polyoxyethylene polyoxypropylene block polymers, phosphatidylcholines, phosphatidylethanolimines and condensed phosphoric acids (eg tripoly Phosphoric acid esters such as phosphoric acid and the like, and salts of these phosphoric acid esters.

  The counter ions of the salts in the above (B-1) to (B-3) include alkali metals (such as lithium, sodium and potassium), alkaline earth metals (such as calcium and magnesium), ammonium and various amines (for example, alkyl) Amine, cycloalkylamine and alkanolamine).

(C) Cationic surfactant:
For example, alkylamines, alkyl quaternary ammonium salts, ethylene oxide adducts of alkyl amines and ethylene oxide adducts of alkyl quaternary ammonium salts.

(D) Amphoteric surfactant:
(D-1) Betaine type surfactant: For example, alkyl (eg C _8-18 ) dimethylaminoacetic acid betaine, acyl (eg C _8-18 ) aminopropyldimethylaminoacetic acid betaine, alkyl (eg C _8-18 ) hydroxy Sulfobetaines and 2-alkyl (eg C _8-18 ) -N-carboxymethyl-N-hydroxyethylimidazolinium betaine (D-2) amino acid type surfactants: for example alkyl (eg C _8-18 ) Aminopropionic acid, alkyl (e.g. _C8-18 ) _{aminodipropionic} acid and N-acyl (e.g. _C8-18 ) -N'-carboxyethyl-N'-hydroxyethylethylenediamine.

(D-3) Amine oxide type surfactants: Examples include alkyl (for example, C _8-18 ) dimethylamine oxide and acyl (for example, C _8-18 ) aminopropyldimethylamine oxide.

(E) Other surfactants:
(E-1) Silicone surfactant: for example, polyoxyethylene / methylpolysiloxane copolymer, polyoxypropylene / methylpolysiloxane copolymer, and poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer Etc.
(E-2) Fluorosurfactant: For example, perfluoroalkenyl benzene sulfonate, perfluoroalkyl sulfonate, perfluoroalkyl carboxylate, perfluoroalkenyl polyoxyethylene ether, perfluoroalkyl polyoxyethylene ether And perfluoroalkyltrimethylammonium salt.

  Other surfactants can be used alone or in admixture of two or more, and the ratio in the case of mixing can also be freely selected. Although the total content of the surfactant in the composition of the present invention can be appropriately selected, it is preferably in the range of 0.1 to 20 parts by weight with respect to 100 parts by weight of the composition of the present invention.

  Among the other surfactants, acetylene-based surfactants are preferable from the viewpoint of preventing foaming and aggregation of the slurry during wet pulverization, and acetylene glycol is particularly preferable. Specifically, Surfynol 104PG50 (trade name, manufactured by Air Products Co., Ltd.) can be mentioned.

  Various adjuvants can be further contained in the composition of the present invention. Adjuvants that can be used include organic solvents, pH adjusters, antifreezing agents, antifoaming agents, antibacterial and antifungal agents, colorants and salts, and include the following.

Examples of the organic solvent include alcohols such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol and isopropanol, ethers such as butyl cellosolve, ketones such as cyclohexanone, esters such as γ-butyrolactone, N-methylpyrrolidone and N - acid amides such as octyl pyrrolidone, polar solvent, xylene, alkyl (C ₉ or C _10, etc.) benzene, phenylxylylethane and alkyl (C ₁ or C _3, etc.) aromatic hydrocarbons such as naphthalene and the like, Machine oil, aliphatic hydrocarbons such as normal paraffin, isoparaffin and naphthene, mixtures of aromatic and aliphatic hydrocarbons such as kerosene, soybean oil, linseed oil, rapeseed oil, coconut oil, cottonseed oil and castor oil Fats and oils, etc. Polar solvent, and the like.
As the pH regulator, for example, various inorganic acids and organic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, sulfonic acid and carboxylic acid, and salts and esters thereof can be used. Specific examples of the organic acid include acidic phosphate, citric acid, maleic acid, sorbic acid, lactic acid, and tartaric acid. Various buffer solutions such as disodium hydrogen phosphate-citric acid aqueous solution, sodium acetate-hydrochloric acid aqueous solution, formic acid-sodium formate aqueous solution, lactic acid-sodium lactate aqueous solution, tartaric acid-sodium tartrate aqueous solution and sodium citrate-hydrochloric acid aqueous solution are also provided. It is also possible to adjust the pH by adding a fixed amount.

  As the antifreezing agent, for example, ethylene glycol, diethylene glycol, propylene glycol, glycerin and the like can be used. Preferred are propylene glycol and glycerin. Moreover, content in this invention composition can also be selected freely.

  Further, an antifoaming agent such as a silicone emulsion, an antibacterial and antifungal agent, a coloring agent, and the like may be blended.

Although it does not specifically limit as a salt, For example, alkali metal salts (lithium, sodium, potassium, etc.), alkaline-earth metals of various inorganic acids and organic acids, such as hydrochloric acid, a sulfuric acid, phosphoric acid, carbonic acid, a sulfonic acid, and carboxylic acid Examples thereof include salts (such as calcium and magnesium), ammonium and various amine salts (such as alkylamine, cycloalkylamine and alkanolamine). Preferred salts are those of hydrochloric acid, sulfuric acid and phosphoric acid. The addition amount of the salt is desirably less than the water solubility of the salt, but is usually 0.1 to 30 parts by weight, preferably 1 to 20 parts by weight, more preferably 3 to 100 parts by weight of the composition of the present invention. 20 parts by weight.
The production method of the composition of the present invention is not particularly limited, and can be obtained by adding each of the aforementioned components to water and mixing with a stirrer. If necessary, the pesticidal active ingredient, surfactant and other adjuvants may be singly or mixed and finely pulverized by a dry type and wet type pulverizer.

  Dry pulverization can be performed with an impact pulverizer, a ball mill, a jet mill or the like. The fine pulverization by wet pulverization can be performed by a wet pulverizer such as an attritor, a sand grinder, a dyno mill, a pearl mill, an apex mill, a visco mill, and an ultra visco mill.

  EXAMPLES Next, although an Example is given and this invention is demonstrated further in detail, this invention is not limited to these. In the following, “part” means part by weight.

  In addition, 1 or more types of herbicidal active ingredients other than the herbicidal active ingredient used in the following Examples and Comparative Examples can be further contained. Such herbicidal active ingredients are not particularly limited, but are those conventionally used as agricultural chemicals for paddy fields, such as mefenacet, oxadichlormephone, pyraclonil, benzobicyclone, caventhrol, cyhalohop butyl Pentoxazone, fentolazamide and dimelon are suitable.

[Example 1]
1. Preparation of Aqueous Suspended Pesticide Composition Suprasilil MNS / 90 (trade name, manufactured by Rhodia, sodium methylnaphthalene sulfonate formalin condensate) 0.1 part, Surfynol 104PG50 (trade name, Air) Products, 50% propylene glycol solution of 2,4,7,9-tetramethyl-5-decyne-4,7-diol) 0.25 parts, anhydrous citric acid 0.25 parts, propylene glycol 7.0 parts , Proxel GXL (S) (trade name, manufactured by Avicia Co., Ltd., 1,2-benzisothiazolin-3-one) 0.1 part, Kunipia F (trade name, manufactured by Kunimine Kogyo Co., Ltd., bentonite) 1.2 Part, 1.2 parts of serogen 7A (trade name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., sodium carboxymethylcellulose) is dispersed. Disperse 2.31 parts of metazosulfuron (generic name, herbicidal active ingredient) in this and wet-grind it with a sand grinder (manufactured by AIMEX Co., Ltd.) using 0.8-1.2mmφ glass beads to form an aqueous suspension pesticide composition 100 parts were obtained.

[Example 2]
An aqueous suspension was prepared in the same manner as in Example 1 except that Suprazil MNS / 90 was replaced with Lunox 1000C (trade name, manufactured by Toho Chemical Industries, Ltd., sodium naphthalene sulfonate formalin condensate). A pesticide composition was obtained.

Example 3
An aqueous suspended pesticide was produced in the same manner as in Example 1 except that the souprazil MNS / 90 was replaced by New Calgen SX-C (trade name, Takemoto Yushi Co., Ltd., alkylbenzene sulfonate). A composition was obtained.

Example 4
An aqueous suspension was prepared in the same manner as in Example 1 except that the souprazil MNS / 90 was replaced with New Calgen TX-C (trade name, Takemoto Yushi Co., Ltd., phenol sulfonic acid formaldehyde condensate). A pesticide composition was obtained.

Example 5
Example except that water was changed to 87.58 parts, and souprazil MNS / 90 was changed to New Calgen WG-101 (trade name, manufactured by Takemoto Yushi Co., Ltd., triisopropyl naphthalene sulfonate) with addition of 0.11 part. 1 to obtain an aqueous suspended agricultural chemical composition.

Example 6
Except for replacing water with 87.49 parts, and souprazil MNS / 90 with New Calgen FS-7PG (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene arylphenyl ether sulfate ammonium salt) with 0.2 parts added. Was produced in the same manner as in Example 1 to obtain an aqueous suspended agricultural chemical composition.

Example 7
87.58 parts of water and Suprasil MNS / 90 were replaced with New Calgen FS-26 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene arylphenyl ether + dialkylsulfosuccinate) and replaced with 0.11 part. Except for the above, production was carried out in the same manner as in Example 1 to obtain an aqueous suspended agricultural chemical composition.

Example 8
An aqueous suspension was prepared in the same manner as in Example 1 except that the souprazil MNS / 90 was replaced with New Calgen WG-5 (trade name, manufactured by Takemoto Yushi Co., Ltd., polycarboxylic acid metal salt). A pesticide composition was obtained.

Example 9
87.49 parts of water and Suprasil MNS / 90 were replaced with New Calgen FS-3PG (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxyethylene arylphenyl ether phosphate amine salt), and 0.2 parts added. The aqueous suspension pesticide composition was obtained in the same manner as in Example 1 except for the above.

[Comparative Example 1]
An aqueous suspended agricultural chemical composition was obtained in the same manner as in Example 1 except that serogen 7A was replaced with water.

[Comparative Example 2]
An aqueous suspension pesticide composition was obtained in the same manner as in Example 1 except that Kunipia F was replaced with water.

[Comparative Example 3]
Suprasil MNS / 90 (trade name, manufactured by Rhodia, sodium methylnaphthalene sulfonate formalin condensate) 0.1 part, Surfynol 104PG50 (trade name, manufactured by Air Products, 2,4,7) , 9-tetramethyl-5-decyne-4,7-diol in 50% propylene glycol solution) 0.25 parts, 0.25 parts of anhydrous citric acid, 7.0 parts of propylene glycol, Proxel GXL (S) (trade name) Avicia Co., Ltd., 1,2-benzoisothiazolin-3-one 0.1 parts, Kunipia F (trade name, Kunimine Kogyo Co., Ltd., bentonite) 0.1 parts, Kelzan ASX (trade name, Kelco) Disperse 0.1 part xanthan gum). To this, 2.31 parts of metazosulfuron was dispersed and wet-pulverized with a sand grinder (manufactured by Imex Co., Ltd.) using 0.8-1.2 mmφ glass beads to obtain 100 parts of an aqueous suspended agricultural chemical composition.

[Comparative Example 4]
Suprasil MNS / 90 (trade name, manufactured by Rhodia, sodium methylnaphthalene sulfonate formalin condensate) 0.1 part, Surfynol 104PG50 (trade name, manufactured by Air Products, 2,4,7) , 9-tetramethyl-5-decyne-4,7-diol in 50% propylene glycol solution) 0.25 parts, 0.25 parts of anhydrous citric acid, 7.0 parts of propylene glycol, Proxel GXL (S) (trade name) Avicia Co., Ltd., 1,2-benzisothiazolin-3-one 0.1 part, Kunipia F (trade name, Kunimine Kogyo Co., Ltd., bentonite) 0.22 part, Kelzan ASX (trade name, Kelco) 0.22 part of xanthan gum (manufactured by the company) is dispersed. To this, 2.31 parts of metazosulfuron was dispersed and wet-pulverized with a sand grinder (manufactured by Imex Co., Ltd.) using 0.8-1.2 mmφ glass beads to obtain 100 parts of an aqueous suspended agricultural chemical composition.

[Test Example 1]
The uniform stability and viscosity stability of the compositions obtained in Examples 1 to 9 and Comparative Examples 1 to 4 were evaluated by the following methods. The compositions obtained in Examples and Comparative Examples were placed in a glass bottle having a diameter of 3 cm and a height of 5 cm, the lid was closed, and the composition was stored in a thermostat at 50 ° C. for 1 month (1M). The viscosity before and after storage and the separation of the supernatant after storage were measured, and the results are shown in Table 1. Moreover, each measurement was performed on the measurement conditions shown below.
[Viscosity measurement]
Using a B-type viscometer (VISCOMETER DV-II + Pro, manufactured by BROOKFIELD), rotor No. 2. The viscosity after 1 minute from the measurement was measured at a rotation speed of 30 rpm.
[Supernatant separation measurement]
The height from the bottom of the glass bottle to the top of the sample was Xcm, the height of the supernatant after storage (the clear layer formed above) was Ycm, and the separation of the supernatant was calculated according to the following formula.

Separation (%) = (Y / X) × 100

The results are shown in Table 1.

Table 1 ――――――――――――――――――――――――――――――――――――
Example 1 Example 2 Example 3 Example 4 Example 5
――――――――――――――――――――――――――――――――――――
Separation 50 ℃ × 1M 0% 0% 0% 0% 0%

Viscosity Initial 78 85 87 80 89
50 ℃ × 1M 65 78 65 69 78
――――――――――――――――――――――――――――――――――――

Table 1 (continued)
―――――――――――――――――――――――――――――――
Example 6 Example 7 Example 8 Example 9
―――――――――――――――――――――――――――――――
Separation 50 ℃ × 1M 0% 0% 0% 0%

Viscosity Initial 77 79 90 70
50 ℃ × 1M 74 82 87 224
―――――――――――――――――――――――――――――――

Table 1 (continued)
―――――――――――――――――――――――――――――――
Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4
―――――――――――――――――――――――――――――――
Separation 50 ℃ × 1M 0% 95% 90% 0%

Viscosity Initial 132 94 38 188
50 ℃ × 1M Gelation 74 63 Gelation ―――――――――――――――――――――――――――――――

Example 10
Suprasil MNS / 90 (trade name, manufactured by Rhodia, sodium methylnaphthalene sulfonate formalin condensate) 0.1 part in water 87.69 parts, New Calgen FS-7PG (trade name, manufactured by Takemoto Yushi Co., Ltd., Poly 0.2 parts of oxyethylene arylphenyl ether sulfate ammonium salt), Surfynol 104PG50 (trade name, manufactured by Air Products, 50% of 2,4,7,9-tetramethyl-5-decyne-4,7-diol 0.25 parts of propylene glycol solution), 0.25 parts of anhydrous citric acid, 7.0 parts of propylene glycol, Proxel GXL (S) (trade name, manufactured by Avicia Co., Ltd., 1,2-benzisothiazoline-3-one) 0.1 part, Kunipia F (trade name, manufactured by Kunimine Kogyo Co., Ltd., bentonite) 1.2 parts, cellogen 7A (trade name, manufactured by Daiichi Kogyo) Ltd., sodium carboxymethyl cellulose) dispersing 1.2 parts. Disperse 2.01 parts of halosulfuron methyl (generic name, herbicidal active ingredient) in this and wet-grind it with a sand grinder (manufactured by AIMEX Co., Ltd.) using 0.8-1.2 mmφ glass beads to form an aqueous suspension. 100 parts of an agrochemical composition was obtained.

Example 11
New calgen SX-C (trade name, manufactured by Takemoto Yushi Co., Ltd., alkyl benzene sulfonate) 0.1 part, New Calgen FS-26 (trade name, manufactured by Takemoto Yushi Co., Ltd., polyoxy) 0.11 part of ethylene aryl phenyl ether + dialkyl sulfosuccinate), Surfynol 104PG50 (trade name, manufactured by Air Products, 50% of 2,4,7,9-tetramethyl-5-decyne-4,7-diol 0.25 parts of propylene glycol solution), 0.25 parts of anhydrous citric acid, 7.0 parts of propylene glycol, Proxel GXL (S) (trade name, manufactured by Avicia Co., Ltd., 1,2-benzisothiazoline-3-one) 0.1 part, Kunipia F (trade name, manufactured by Kunimine Kogyo Co., Ltd., bentonite) 1.2 parts, Serogen 7A (trade name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Carboxyme Disperse 1.2 parts of sodium tilcellulose. Disperse 2.04 parts of quizalofopethyl (generic name, herbicidal active ingredient) in this, wet grind it with a sand grinder (manufactured by IMEX Co., Ltd.) using 0.8-1.2 mmφ glass beads, and aqueous suspension 100 parts of a pesticide composition was obtained.

Example 12
In 87.78 parts of water, New Calgen WG-101 (trade name, manufactured by Takemoto Yushi Co., Ltd., triisopropyl naphthalene sulfonate) 0.1 part, New Calgen FS-26 (trade name, manufactured by Takemoto Yushi Co., Ltd.) 0.11 part of polyoxyethylene arylphenyl ether + dialkylsulfosuccinate), Surfynol 104PG50 (trade name, manufactured by Air Products, 2,4,7,9-tetramethyl-5-decyne-4,7-diol) 0.25 parts of 50% propylene glycol solution), 0.25 parts of anhydrous citric acid, 7.0 parts of propylene glycol, Proxel GXL (S) (trade name, manufactured by Avicia Co., Ltd., 1,2-benzoisothiazoline-3- ON) 0.1 part, Kunipia F (trade name, manufactured by Kunimine Kogyo Co., Ltd., bentonite) 1.2 parts, Serogen 7A (trade name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) , 1.2 parts of sodium carboxymethylcellulose). Disperse 2.01 parts of amisulbrom (generic name, bactericidal active ingredient) in this and wet pulverize with a sand grinder (manufactured by AIMEX Co., Ltd.) using 0.8-1.2mmφ glass beads, aqueous suspension pesticide composition 100 parts were obtained.

[Test Example 2]
The compositions obtained in Examples 10 to 12 were evaluated by the following methods. The obtained composition was put in a glass bottle having a diameter of 3 cm and a height of 5 cm, the lid was closed, and the composition was stored in a thermostat at 54 ° C. for 2 weeks (2 W). The viscosity before and after storage, the volume median diameter of the pesticidal active ingredient particles, and the supernatant separation after storage were measured, and the results are shown in Table 2. The volume median diameter was measured under the following measurement conditions. Uniform stability and viscosity stability were performed under the measurement conditions described above.

[Volume median diameter measurement]
Model name: Particle size distribution measuring machine LS-13320 manufactured by Beckman Coulter
Measurement method: Laser diffraction scattering method

The results are shown in Table 2.

Table 2 ―――――――――――――――――――――――――――――――――
Example 10 Example 11 Example 12
―――――――――――――――――――――――――――――――――
Separation 54 ℃ × 2w 0% 0% 0%

Viscosity Initial 100 78 69
54 ℃ × 2w 78 71 89

Volume median diameter Initial 1.4μm 3.7μm 1.8μm
54 ℃ × 2w 1.5μm 12.2μm 15.5μm
―――――――――――――――――――――――――――――――――

  The composition of the present invention can be used for controlling weeds and pests.

Claims (4)

An aqueous suspension agricultural chemical composition containing (1) an agricultural chemical active ingredient, (2) carboxymethylcellulose salt, (3) a montmorillonite mineral inorganic thickener, (4) a surfactant, and (5) water.
(However, the formula (I)

[Wherein, R ¹ represents a halogen atom, and R ² represents a C2-4 alkyl group or a cyclopropyl group. ] An aqueous suspension herbicide composition containing a sulfonylurea herbicidal active compound, a carboxymethylcellulose salt, a lignin sulfonate, a surfactant and water. )   (4) Surfactant is alkylbenzene sulfonate, alkyl naphthalene sulfonate, formalin condensate of naphthalene sulfonic acid, formalin condensate of alkyl naphthalene sulfonic acid, formalin condensate of phenol sulfonic acid, polyoxyalkylene aryl phenyl ether The aqueous suspended agricultural chemical composition according to claim 1, which is at least one selected from sulfate ester salts, polyoxyalkylene aryl phenyl ethers, dialkyl sulfosuccinates and polycarboxylates.   (4) Surfactant is alkylbenzene sulfonate, alkyl naphthalene sulfonate, formalin condensate of naphthalene sulfonic acid, formalin condensate of alkyl naphthalene sulfonic acid, formalin condensate of phenol sulfonic acid, polyoxyethylene arylphenyl ether The aqueous suspension pesticide composition according to claim 1, wherein the composition is one or more selected from a sulfate ester salt, a mixture of polyoxyethylene arylphenyl ether and dialkyl sulfosuccinate and a polycarboxylate.   The aqueous suspended agricultural chemical composition according to claim 2 or 3, further comprising an acetylene surfactant.