WO2014133179A1 - 農薬固形製剤 - Google Patents
農薬固形製剤 Download PDFInfo
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- WO2014133179A1 WO2014133179A1 PCT/JP2014/055202 JP2014055202W WO2014133179A1 WO 2014133179 A1 WO2014133179 A1 WO 2014133179A1 JP 2014055202 W JP2014055202 W JP 2014055202W WO 2014133179 A1 WO2014133179 A1 WO 2014133179A1
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- solid preparation
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- fenpyrazamine
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
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- 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
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- 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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/16—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof the nitrogen atom being part of a heterocyclic ring
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- 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
Definitions
- the present invention relates to an agrochemical solid preparation containing fenpyrazamine.
- agricultural chemical formulations containing fenpyrazamine have been known as agricultural fungicides.
- a granular agricultural chemical composition containing fenpyrazamine and lignin sulfonate has been put to practical use (see, for example, JP2006-249067A).
- odor may be generated during storage or transportation at high temperatures. The generation of such odors is not accompanied by degradation of quality that causes practical problems, such as decomposition of active ingredients of agricultural chemicals, most of which are recognized as unpleasant odors depending on the user and usage situation. Therefore, suppression of odor generation is desired.
- An object of the present invention is to provide a fenpyrazamine-containing pesticide solid preparation that has no problem of odor generation and is excellent in stability in practical use.
- the present invention is as follows.
- agrochemical solid preparation not only there is no problem of generation of odor, but also, for example, containing fenpyrazamine, which is excellent in stability in practical situations such as aqueous dispersion water of the present solid preparation used when applying the present solid preparation to plants
- An agrochemical solid preparation can be provided.
- the solid agricultural chemical preparation of the present invention (hereinafter referred to as the present solid preparation) contains fenpyrazamine in an amount of usually 5 to 90% by weight, preferably 15 to 80% by weight, based on 100% by weight of the solid preparation of the present invention.
- the solid preparation of the present invention is a preparation exhibiting a pH of 8 or less at 25 ° C. (hereinafter referred to as the pH of the solid preparation of the present invention) when 1 gram of the solid preparation of the present invention and 99 grams of ion-exchanged water are mixed.
- the effect of the present invention is exhibited by making the solid preparation of the present invention have a pH of 8 or less, but the pH of the solid preparation of the present invention is preferably in the range of 3 to 8, more preferably It is in the range of 3-6.
- ion-exchanged water is water purified using a cation-exchange resin and an anion-exchange resin, and usually refers to water having an electric conductivity at 25 ° C.
- the pH at 25 ° C. is determined by adding a mixed liquid obtained by adding 1 gram of the solid preparation of the present invention to 99 grams of ion-exchanged water and sufficiently stirring it using a magnetic stirrer or the like using a thermostatic bath or the like. It is a pH value measured when the glass electrode of a glass electrode type pH meter is immersed in the mixed solution while being kept at 25 ° C. and the change in potential difference for 10 seconds is stabilized within ⁇ 1 mV.
- the solid preparation of the present invention contains an acid component in an amount necessary for the pH of the solid preparation of the present invention to be 8 or less.
- the acid component include inorganic acids and organic acids.
- inorganic acids include hypochlorous acid, sulfuric acid, sulfurous acid, nitric acid, phosphoric acid, boric acid and the like.
- Organic acids include acetic acid, propionic acid, butyric acid, octanoic acid, palmitic acid, oleic acid, stearic acid, heartole fatty acid (extracted from timber based on oleic acid and linoleic acid, also called tall oil fatty acid Saturated or unsaturated fatty acids such as Harima Kasei Kogyo Co., Ltd.), aromatic carboxylic acids such as benzoic acid and phthalic acid, di- or tricarboxylic acids such as succinic acid, malic acid, oxalic acid and citric acid, sorbic acid and lactic acid
- Organic phosphoric acid such as carboxylic acid such as mono- or di-C1-6 alkyl phosphate (eg, diisopropyl phosphate, monoisopropyl phosphate, PAP (mixture mainly composed of diisopropyl phosphate and monoisopropyl phosphate: manufactured by Nippon Chemical Industry Co.
- the content of the acid component in the solid preparation of the present invention is an amount necessary for the pH at 25 ° C. to be 8 or less when 1 gram of the solid preparation and 99 grams of ion-exchanged water are mixed.
- the total pH is usually 0.01 to 25% by weight, preferably 0.01 to 15% by weight, based on 100% by weight of the solid preparation of the present invention.
- the acid component content of the solid preparation of the present invention can be determined.
- the solid preparation of the present invention may contain lignin sulfonate.
- the lignin sulfonate used in the present invention include sodium salt, potassium salt, and ammonium salt of lignin sulfonic acid.
- a lignin sulfonate having a weight average molecular weight of 3000 to 14000, a pH of 8 or less, and a sulfonation degree of 1.0 to 3.0 is preferable.
- the pH of such lignin sulfonate is the pH at 25 ° C.
- lignin sulfonate when lignin sulfonate is dissolved in ion-exchanged water to form a 15% (w / v) aqueous solution.
- % (w / v) means weight / volume percent concentration
- 15% (w / v) aqueous solution means lignin dissolved in 100 mL of lignin sulfonate aqueous solution. Refers to an aqueous solution with a sulfonate weight of 15 grams.
- the pH of lignin sulfonate can be measured by preparing a 15% (w / v) aqueous solution of lignin sulfonate and the same method as the pH of the solid preparation of the present invention.
- the degree of sulfonation of the lignin sulfonate is the average of the number of sulfonic acid groups in one unit when the molecular weight of one unit of lignin is 1000.
- Specific examples of the lignin sulfonate having a weight average molecular weight of 3000 to 14000, a pH of 8 or less, and a sulfonation degree of 1.0 to 3.0 include Reax 80D (manufactured by Meadwestvaco, 15% (w / w).
- Reax88A manufactured by Meadwestvaco, pH 15 at 25 ° C. when made into a 15% (w / v) aqueous solution is 4.3.
- Certain sodium lignin sulfonate Manufactured by Meadwestvaco, 15% (w / v) aqueous solution of sodium lignin sulfonate having a pH of 7.2 at 25 ° C
- Reax910 manufactured by Meadwestvaco, 15% ( w / v) pH at 25 ° C. in aqueous solution is 7.
- Sodium lignin sulfonate and the like are can be given.
- the total content is usually 1 to 80% by weight, preferably 20 to 50% by weight, based on 100% by weight of the solid preparation of the present invention.
- the solid preparation of the present invention may further contain an agrochemical adjuvant used in ordinary agrochemical solid preparations.
- agrochemical adjuvants include solid carriers, surfactants, binders, antifoaming agents and the like.
- solid carriers examples include kaolin clay, diatomaceous earth, wax stone, quartzite, bentonite, acid clay, activated clay, attapulgite clay, pyrophyllite, sericite, zeolite, dikelite, wollastonite, calcium silicate, talc, pumice, Mineral carriers such as white carbon; and ammonium salts such as ammonium sulfate and ammonium hydrochloride; phosphates such as potassium dihydrogen phosphate and dipotassium hydrogen phosphate; carbonates such as sodium carbonate, sodium bicarbonate and calcium carbonate; glucose And water-soluble carriers such as fructose, sucrose, lactose, saccharides such as dextrin, urea, sodium chloride, sodium sulfate, and polyethylene glycol that is solid at room temperature.
- the solid preparation of the present invention contains a solid carrier in a total amount of usually 0 to 30% by weight, preferably 0 to 20% by weight, based on 100% by weight of
- the surfactant examples include a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, or a mixture thereof. Usually, nonionic surfactants and / or anionic surfactants are used. Examples of the nonionic surfactant include polyoxyethylene carboxylic acid ester, polyoxyethylene polyoxypropylene alkyl aryl ether, polyoxyethylene polyoxypropylene block copolymer, polyoxyethylene alkyl aryl ether, and polyoxyethylene.
- Alkyl ether polyoxyethylene polyoxypropylene tristyryl phenyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene tristyryl phenyl ether, polyoxyethylene fatty acid ester, fatty acid ester, polyhydric alcohol fatty acid ester, polyoxyethylene polyhydric alcohol Examples thereof include fatty acid esters and polyoxyethylene alkylamines.
- anionic surfactant examples include dialkyl sulfocarboxylic acid ester salts, alkyl sulfonic acid salts, alkyl aryl sulfonic acid salts, polycarboxylic acid salts, polyoxyethylene alkyl aryl ether phosphoric acid ester salts, polyoxyethylene tristyryl.
- the solid preparation of the present invention contains a surfactant in a total amount of usually 2 to 20% by weight, preferably 4 to 10% by weight, based on 100% by weight of the solid preparation of the present invention.
- the binder is preferably a water-soluble binder, and examples thereof include dextrin, polyvinyl alcohol, gum arabic, sodium alginate, polyvinyl pyrrolidone, mannitol, and sorbitol.
- the solid preparation of the present invention contains the binder in a total amount of usually 0 to 20% by weight, preferably 0 to 10% by weight, based on 100% by weight of the solid preparation of the present invention.
- the solid preparation of the present invention contains 0 to 5% by weight, preferably 0 to 3% by weight, of the antifoaming agent as a total with respect to 100% by weight of the solid preparation of the present invention.
- solid preparation of the present invention Some examples of the solid preparation of the present invention are shown below.
- the amount indicates the weight relative to the total weight of the solid preparation of the present invention.
- a solid agricultural chemical preparation containing 5 to 90% by weight of fenpyrazamine and 0.01 to 25% by weight of an acid component, and the pH of the solid preparation of the present invention is 8 or less.
- a solid agricultural chemical preparation containing 5 to 90% by weight of fenpyrazamine and 0.01 to 15% by weight of phosphoric acid, and the pH of the solid preparation of the present invention is 8 or less.
- a solid agricultural chemical preparation containing 5 to 90% by weight of fenpyrazamine and 0.01 to 15% by weight of phosphoric acid, and the pH of the solid preparation of the present invention is 3 or more and 8 or less.
- a solid agricultural chemical preparation containing 5 to 90% by weight of fenpyrazamine and 0.01 to 15% by weight of phosphoric acid, and the solid preparation of the present invention has a pH of 3 to 6.
- a solid agricultural chemical preparation containing 5 to 90% by weight of fenpyrazamine, 0.01 to 25% by weight of an acid component, and 1 to 80% by weight of lignin sulfonate, and the pH of the solid preparation of the present invention is 8 or less.
- a solid agricultural chemical preparation containing 40 to 60% by weight of fenpyrazamine and 0.01 to 15% by weight of phosphoric acid, and the solid preparation of the present invention has a pH of 3 to 8.
- Lignin sulfonate 25 having 40 to 60% by weight of fenpyrazamine, 0.01 to 15% by weight of phosphoric acid, a weight average molecular weight of 3000 to 14000, a pH of 8 or less, and a sulfonation degree of 1.0 to 3.0
- a solid agricultural chemical preparation containing 40 to 60% by weight of fenpyrazamine and 0.01 to 15% by weight of phosphoric acid, and the solid preparation of the present invention has a pH of 3 to 6.
- the solid preparation of the present invention comprises fenpyrazamine and an acid component in an amount necessary for exhibiting a pH of the solid preparation of the present invention of 8 or less (hereinafter referred to as acid component A), lignin sulfonate and agrochemical adjuvant as necessary. Can be mixed.
- the form (dosage form) of the solid preparation of the present invention is a wettable powder or a granular wettable powder, and a granular wettable powder is preferable from the viewpoint of user protection. These preparations can be prepared by known methods.
- the solid preparation of the present invention which is a granular wettable powder (hereinafter referred to as the granular wettable powder of the present invention) can be produced, for example, by the following method.
- the aqueous suspension to be spray-dried can be prepared, for example, by the following method 1) or 2). 1) Add fenpyrazamine, lignin sulfonate, solid carrier and antifoaming agent, etc.
- the acid component A may be added before pulverization or may be added after pulverization.
- a mixer such as a ribbon mixer, a juice mixer or a nauta mixer, using a pulverizer such as a hammer mill, a pin mill, a jet mill or a centrifugal pulverizer And dry pulverize.
- the pulverized mixture and, if necessary, lignin sulfonate are added to a predetermined amount of water (which may contain a surfactant), and further, if necessary Add foaming agent, etc., and suspend uniformly using a stirrer such as a disperser.
- the acid component A may be mixed with fenpyrazamine before dry pulverization, but is usually added to water together with the pulverized mixture containing fenpyrazamine after dry pulverization.
- the particle diameter of fenpyrazamine in the aqueous suspension is 0.5 to 20 ⁇ m, preferably 1 to 15 ⁇ m.
- the particle diameter of fenpyrazamine means the volume median diameter of crystals of fenpyrazamine.
- the volume median diameter refers to a particle diameter that is 50% in cumulative frequency in a volume-based frequency distribution, and can be obtained by wet measurement using, for example, a laser diffraction particle size distribution measuring apparatus. More specifically, fenpyrazamine crystals are dispersed in water and measurement is performed using the apparatus.
- Spray drying is performed, for example, by bringing an aqueous suspension sprayed from a pressure spray nozzle or a rotary atomizer into contact with hot air.
- the granule of the present invention obtained by appropriately adjusting the conditions such as the discharge amount (discharge speed) of the aqueous suspension from the pressure spray nozzle or the rotary atomizer, the spray drying temperature, the supply amount of hot air, the direction of hot air, etc.
- the particle size of the wettable powder can be controlled. Usually, the above conditions are adjusted so that the outlet temperature is 80 ° C.
- the particle diameter of the granular wettable powder of the present invention means the volume median diameter of the granular wettable powder of the present invention.
- the volume median diameter refers to a particle diameter that is 50% in cumulative frequency in a volume-based frequency distribution, and can be obtained by dry measurement using, for example, a laser diffraction particle size distribution measuring apparatus. More specifically, the granule wettable powder of the present invention is dispersed in air and the measurement is performed using the apparatus.
- An example of such a laser diffraction particle size distribution analyzer is Mastersizer 2000 (manufactured by Malvern).
- primary particles sprayed and dried to some extent are further granulated in a fluidized bed, that is, fenpyrazamine, acid component A and water, if necessary, lignin sulfonate, surfactant, solid
- a method in which an aqueous suspension containing a carrier and an antifoaming agent is sprayed into a fluidized bed apparatus and fluidized bed granulation is continuously performed following spray granulation for example, NIRO's FSD technology.
- the aqueous suspension spray-dried in the fluidized bed can be prepared, for example, by the above method 1) or 2).
- pulverization is performed so that the particle diameter of fenpyrazamine in the aqueous suspension is 0.5 to 20 ⁇ m, preferably 1 to 15 ⁇ m.
- the obtained aqueous suspension is sprayed into the fluidized bed from above (top spray) or below (bottom spray) using, for example, a pressure spray nozzle or a rotary atomizer, and the sprayed mist comes into contact with hot air in the fluidized bed.
- Contact agglomeration occurs during drying, and a granular material larger than the primary particles immediately after spraying is formed.
- the primary particle size of the wettable powder) and the secondary particle size after aggregation can be controlled.
- the secondary particle diameter after aggregation is controlled by controlling the dry state in the fluidized bed. Specifically, the humidity in the layer increases under the condition that the discharge rate / (drying temperature ⁇ hot air supply amount) increases, and the secondary particle diameter of the granule wettable powder of the present invention increases, but the discharge rate / (drying).
- each condition is usually adjusted so that the temperature of the wettable powder of the present invention immediately after drying is 30 to 90 ° C.
- each condition is adjusted so that the particle diameter (secondary particle diameter) of the obtained granular wettable powder of the present invention is usually 0.1 to 3 mm, preferably 0.1 to 1 mm.
- the amount of the present granule wettable powder which is the basis for the amount of each component contained in the present granule wettable powder, increases due to moisture remaining during drying after granulation or moisture absorption during storage. Does not contain moisture.
- Fenpyrazamine (purity 97% by weight) was dry pulverized by a vertical jet mill (JOM-0101 type jet pulverizer, manufactured by Seishin Enterprise Co., Ltd.) to prepare fenpyrazamine fine powder having a fenpyrazamine particle size of 2.7 ⁇ m.
- the obtained fenpyrazamine fine powder 51.5 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 42.6 parts by weight, phosphoric acid 0. 9 parts by weight and 300 parts by weight of ion-exchanged water were mixed until uniform to obtain an aqueous suspension.
- the aqueous suspension was spray dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (1) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (1) and 99 g of ion-exchanged water was 8.1.
- Production Example 2 51.5 parts by weight of fenpyrazamine fine powder prepared in Production Example 1, 5 parts by weight of potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia), 41.3 parts by weight of sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco), phosphorus
- An acid suspension was obtained by mixing 2.2 parts by weight of acid and 300 parts by weight of ion-exchanged water until uniform.
- the aqueous suspension was spray-dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (2) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (2) and 99 g of ion-exchanged water was 6.7.
- Production Example 3 Fenpyrazamine fine powder prepared in Production Example 1 51.5 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 39.1 parts by weight, phosphorus 4.4 parts by weight of acid and 300 parts by weight of ion exchange water were mixed until uniform to obtain an aqueous suspension.
- the aqueous suspension was spray-dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (3) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (3) and 99 g of ion-exchanged water was 5.7.
- Production Example 4 Fenpyrazamine fine powder prepared in Production Example 1 51.5 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 38.3 parts by weight, phosphorus
- An acid suspension was obtained by mixing 5.2 parts by weight of acid and 300 parts by weight of ion-exchanged water until uniform.
- the aqueous suspension was spray-dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (4) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (4) and 99 g of ion-exchanged water was 5.0.
- Production Example 5 Fenpyrazamine fine powder prepared in Production Example 1 51.5 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 36.6 parts by weight, phosphorus
- An aqueous suspension was obtained by mixing 6.9 parts by weight of acid and 300 parts by weight of ion-exchanged water until uniform.
- the aqueous suspension was spray-dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (5) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (5) and 99 g of ion-exchanged water was 4.0.
- Production Example 6 Fenpyrazamine fine powder 51.5 parts by weight prepared in Production Example 1, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 30.7 parts by weight, phosphorus
- An acid suspension was obtained by mixing 12.8 parts by weight of acid and 300 parts by weight of ion-exchanged water until uniform.
- the aqueous suspension was spray-dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain the agrochemical solid preparation (6) of the present invention.
- the pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (6) and 99 g of ion-exchanged water was 2.5.
- Production Example 7 77.3 parts by weight of fenpyrazamine fine powder prepared in Production Example 1, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 17.2 parts by weight Then, 0.5 parts by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (7) of the present invention. The pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (7) and 99 g of ion-exchanged water was 8.3.
- Production Example 8 Fenpyrazamine fine powder prepared in Production Example 1 77.3 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 16.7 parts by weight Then, 1.0 part by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (8) of the present invention. The pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (8) and 99 g of ion-exchanged water was 6.7.
- Production Example 9 Fenpyrazamine fine powder 77.3 parts by weight prepared in Production Example 1, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 15.6 parts by weight Then, 2.1 parts by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (9) of the present invention. The pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (9) and 99 g of ion-exchanged water was 6.3.
- Production Example 10 77.3 parts by weight of fenpyrazamine fine powder prepared in Production Example 1, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 14.1 parts by weight Then, 3.6 parts by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (10) of the present invention. The pH at 25 ° C. of a mixed solution of 1 gram of the present agricultural chemical solid preparation (10) and 99 grams of ion-exchanged water was 5.4.
- Production Example 11 Fenpyrazamine fine powder prepared in Production Example 1 77.3 parts by weight, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 13.1 parts by weight Then, 4.7 parts by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (11) of the present invention. The pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (11) and 99 g of ion-exchanged water was 4.7.
- Production Example 12 77.3 parts by weight of fine fenpyrazamine powder prepared in Production Example 1, potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) 5.0 parts by weight, sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) 10.4 parts by weight Then, 7.3 parts by weight of a 10% aqueous solution of phosphoric acid was stirred and mixed using a juice mixer to obtain the agrochemical solid preparation (12) of the present invention. The pH at 25 ° C. of a mixed solution of 1 g of the present agricultural chemical solid preparation (12) and 99 g of ion-exchanged water was 3.0.
- potassium dihydrogen phosphate 4 parts by weight is dissolved in 23 parts by weight of ion-exchanged water to obtain an aqueous potassium dihydrogen phosphate solution.
- the aqueous suspension is sprayed using a fluidized bed granulator (STREA-1, manufactured by POWREC), granulated by a method of continuously performing fluidized bed granulation following spray granulation, and an agrochemical solid preparation Get.
- STREA-1 fluidized bed granulator
- Discharge rate 5 g / min at start, 25 g / min at steady state
- Drying temperature 90 ° C at start, 80 ° C at steady state
- Hot air supply rate 85 m 3 / h at start, 50 m 3 / h at steady state
- the pH at 25 ° C. of a mixed solution of 1 gram of the obtained agricultural chemical solid preparation and 99 grams of ion-exchanged water is 8 or less.
- Comparative production example 1 51.5 parts by weight of fenpyrazamine fine powder prepared in Production Example 1, 5 parts by weight of potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia), 43.5 parts by weight of sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) and ions 300 parts by weight of exchange water was mixed until uniform to obtain an aqueous suspension.
- the aqueous suspension was spray dried using a spray dryer (model SD-1, manufactured by Tokyo Rika Kikai Co., Ltd.) to obtain a comparative agrochemical solid preparation (1).
- the pH at 25 ° C. of a mixed solution of 1 gram of comparative agricultural chemical solid preparation (1) and 99 grams of ion-exchanged water was 9.8.
- Comparative production example 2 77.3 parts by weight of fenpyrazamine fine powder prepared in Production Example 1, 5.0 parts by weight of potassium polycarboxylate (Geropon SC / 213, manufactured by Rhodia) and 17.7 parts by weight of sodium lignin sulfonate (Reax 85A, manufactured by Meadwestvaco) was stirred and mixed using a juice mixer to obtain a comparative agricultural chemical solid preparation (2).
- the pH at 25 ° C. of a mixed solution of 1 g of this comparative agricultural chemical solid preparation (2) and 99 g of ion-exchanged water was 10.0.
- Test example 1 10 grams of each of the present agricultural chemical solid preparations (1) to (12) and comparative agricultural chemical solid preparations (1) to (2) were put in an aluminum bag, sealed, and left in a 54 ° C. incubator for 2 weeks. Thereafter, a sensory test of fenpyrazamine-derived odor was performed on each of the agrochemical solid preparations by three monitors according to the following criteria. The average value of the judgment values of three people was taken as the result. The results are shown in Table 1. Criteria 0: No odor 1: Odor 2: Strong odor 3: Very strong odor Odor between 0 and 1 is 0.5, Odor between 1 and 2 is 1.5, 2 and 3 The odor between them was 2.5.
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Abstract
Description
かかる製剤においては、例えば高温下での保存や輸送等の間に、臭気を発生することがある。このような臭気の発生は、その殆どが含有される農薬活性成分の分解等、実用上問題となるような品質の劣化を伴うものではないものの、使用者や使用場面によっては、不快臭と認識されることがあり、臭気の発生の抑制が望まれている。
すなわち、本発明は以下の通りである。
本発明固形製剤において、25℃におけるpHは、本発明固形製剤1グラムをイオン交換水99グラムに投入しマグネティックスターラー等を用いて十分攪拌することにより得られる混合液を、恒温槽等を用いて25℃に保ち、ガラス電極式のpHメーターのガラス電極を該混合液に浸漬し、10秒間の電位差の変化が±1mV以内に安定した時点で測定されるpH値である。
重量平均分子量が3000~14000、pHが8以下、かつスルホン化度が1.0~3.0であるリグニンスルホン酸塩としては、具体的には、Reax80D(MeadWestvaco社製、15%(w/v)水溶液としたときの25℃におけるpHが7.0であるリグニンスルホン酸ナトリウム)、Reax88A(MeadWestvaco社製、15%(w/v)水溶液としたときの25℃におけるpHが4.3であるリグニンスルホン酸ナトリウム)、Reax907(MeadWestvaco社製、15%(w/v)水溶液としたときの25℃におけるpHが7.2であるリグニンスルホン酸ナトリウム)、Reax910(MeadWestvaco社製、15%(w/v)水溶液としたときの25℃におけるpHが7.2であるリグニンスルホン酸ナトリウム)等が挙げられる。
本発明固形製剤は固体担体を、本発明固形製剤100重量%に対して、その合計として通常0~30重量%、好ましくは0~20重量%含有する。
本発明固形製剤は界面活性剤を、本発明固形製剤100重量%に対して、その合計として通常2~20重量%、好ましくは4~10重量%含有する。
本発明固形製剤は結合剤を、本発明固形製剤100重量%に対して、その合計として通常0~20重量%、好ましくは0~10重量%含有する。
本発明固形製剤は消泡剤を、本発明固形製剤100重量%に対して、その合計として通常0~5重量%、好ましくは0~3重量%含有する。
・フェンピラザミン5~90重量%、酸成分0.01~25重量%を含有し、本発明固形製剤のpHが8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、酸成分0.01~25重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、酸成分0.01~25重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%を含有し、本発明固形製剤のpHが8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン5~90重量%、酸成分0.01~25重量%、リグニンスルホン酸塩1~80重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、酸成分0.01~25重量%、リグニンスルホン酸塩1~80重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%、リグニンスルホン酸塩1~80重量%を含有し、本発明固形製剤のpHが8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%、リグニンスルホン酸塩1~80重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン5~90重量%、リン酸0.01~15重量%、リグニンスルホン酸塩1~80重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン40~60重量%、リン酸0.01~15重量%、リグニンスルホン酸塩25~45重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン40~60重量%、リン酸0.01~15重量%、重量平均分子量が3000~14000、pHが8以下、かつスルホン化度が1.0~3.0であるリグニンスルホン酸塩25~45重量%を含有し、本発明固形製剤のpHが3以上8以下である農薬固形製剤。
・フェンピラザミン40~60重量%、リン酸0.01~15重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン40~60重量%、リン酸0.01~15重量%、リグニンスルホン酸塩25~45重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
・フェンピラザミン40~60重量%、リン酸0.01~15重量%、重量平均分子量が3000~14000、pHが8以下、かつスルホン化度が1.0~3.0であるリグニンスルホン酸塩25~45重量%を含有し、本発明固形製剤のpHが3以上6以下である農薬固形製剤。
フェンピラザミン、酸成分A及び水、必要に応じ、リグニンスルホン酸塩、界面活性剤、固体担体及び消泡剤等を含有する水性懸濁液を噴霧乾燥する方法。
この方法において、噴霧乾燥される水性懸濁液は、例えば、以下の1)または2)の方法により調製することができる。
1)所定量の水(界面活性剤を含有していてもよい)に、フェンピラザミン、必要に応じ、リグニンスルホン酸塩、固体担体及び消泡剤等を加え、横型ビーズミルまたはサンドグラインダー等の湿式粉砕機を用いて湿式粉砕する。酸成分Aは、粉砕前に加えてもよいし、粉砕後に加えても何ら差し支えない。
2)フェンピラザミン、必要に応じ、固体担体等をリボンミキサー、ジュースミキサー、ナウタミキサー等の混合機を用いて均一に混合した後、ハンマーミル、ピンミル、ジェットミル、遠心粉砕機等の粉砕機を用いて乾式粉砕する。場合により再度混合機を用いて混合した後に、該粉砕混合物及び必要に応じ、リグニンスルホン酸塩を所定量の水(界面活性剤を含有していてもよい)に加え、さらに必要に応じ、消泡剤等を加え、ディスパーサー等の攪拌機を用いて均一に懸濁させる。酸成分Aは、乾式粉砕前にフェンピラザミンと混合されていてもよいが、通常は、乾式粉砕後にフェンピラザミンを含む粉砕混合物と共に水に加える。
上記の水性懸濁液を調製する際の湿式粉砕または乾式粉砕において、水性懸濁液中のフェンピラザミンの粒子径が0.5~20μm、好ましくは1~15μmとなるように粉砕を行う。本発明において、フェンピラザミンの粒子径とはフェンピラザミンの結晶の体積中位径を意味する。体積中位径は、体積基準の頻度分布において累積頻度で50%となる粒径を指し、例えばレーザ回折式粒度分布測定装置を用いて湿式測定により求めることができる。より具体的には、水中にフェンピラザミンの結晶を分散させて当該装置を用いて測定する。かかるレーザ回折式粒度分布測定装置としては、例えば、マスターサイザー2000(マルバーン社製)が挙げられる。
噴霧乾燥は、例えば圧力噴霧ノズルまたはロータリーアトマイザーから噴霧される水性懸濁液と熱風とを接触させることにより行う。噴霧乾燥において、圧力噴霧ノズルまたはロータリーアトマイザーからの水性懸濁液の吐出量(吐出速度)、噴霧乾燥温度、熱風供給量、熱風の向き等の条件を適宜調節することにより、得られる本発明顆粒水和剤の粒子径を制御することができる。通常、出口温度が80℃以下、乾燥直後の本発明顆粒水和剤の温度が90℃以下となるように上記条件が調節される。また、得られる本発明顆粒水和剤の粒子径が、通常0.1~1mmとなるように噴霧乾燥の条件が調節される。本発明において、本発明顆粒水和剤の粒子径とは本発明顆粒水和剤の体積中位径を意味する。体積中位径は、体積基準の頻度分布において累積頻度で50%となる粒径を指し、例えばレーザ回折式粒度分布測定装置を用いて乾式測定により求めることができる。より具体的には、空気中に本発明顆粒水和剤を分散させて当該装置を用いて測定する。かかるレーザ回折式粒度分布測定装置としては、例えば、マスターサイザー2000(マルバーン社製)が挙げられる。
該方法において、流動層内で噴霧乾燥される水性懸濁液は、例えば、上記の1)または2)の方法により調製することができる。
上記の水性懸濁液を調製する際の湿式粉砕または乾式粉砕において、水性懸濁液中のフェンピラザミンの粒子径が0.5~20μm、好ましくは1~15μmとなるように粉砕を行う。
得られた水性懸濁液は、例えば圧力噴霧ノズルまたはロータリーアトマイザーを用いて装置上方(トップスプレー)または下方(ボトムスプレー)より流動層内に噴霧され、噴霧ミストが流動層内で熱風と接触し乾燥する際に接触凝集を起こし、噴霧直後の一次粒子よりも大きな粒状物を形成する。圧力噴霧ノズルまたはロータリーアトマイザーからの水性懸濁液の吐出量(吐出速度)、流動層での乾燥温度、熱風供給量、熱風の向き等の条件を調節することにより得られる粒状物(本発明顆粒水和剤)の一次および凝集後の二次粒子径を制御することができる。通常、凝集後の二次粒子径は流動層内の乾燥状態の制御により行う。具体的には、吐出速度/(乾燥温度×熱風供給量)が大きくなる条件で層内の湿度が高くなり、本発明顆粒水和剤の二次粒子径は大きくなるが、吐出速度/(乾燥温度×熱風供給量)が小さくなる条件で層内の湿度が低くなり、本発明顆粒水和剤の二次粒子径は小さくなる。上記製造時には、通常、乾燥直後の本発明顆粒水和剤の温度が30~90℃になるように各条件が調節される。本発明では、得られる本発明顆粒水和剤の粒子径(二次粒子径)が、通常0.1~3mm、好ましくは0.1~1mmとなるように各条件が調節される。
まず、製造例及び比較製造例を示す。
製造例1
フェンピラザミン(純度97重量%)を縦型ジェットミル(JOM−0101型ジェット粉砕装置、株式会社セイシン企業製)により乾式粉砕し、フェンピラザミンの粒子径が2.7μmであるフェンピラザミン微粉末を調製した。
得られたフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)42.6重量部、リン酸0.9重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(1)を得た。
本発明農薬固形製剤(1)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは8.1であった。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)41.3重量部、リン酸2.2重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(2)を得た。
本発明農薬固形製剤(2)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは6.7であった。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)39.1重量部、リン酸4.4重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(3)を得た。
本発明農薬固形製剤(3)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは5.7であった。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)38.3重量部、リン酸5.2重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(4)を得た。
本発明農薬固形製剤(4)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは5.0であった。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)36.6重量部、リン酸6.9重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(5)を得た。
本発明農薬固形製剤(5)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは4.0であった。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)30.7重量部、リン酸12.8重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、本発明農薬固形製剤(6)を得た。
本発明農薬固形製剤(6)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは2.5であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)17.2重量部、リン酸の10%水溶液0.5重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(7)を得た。
本発明農薬固形製剤(7)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは8.3であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)16.7重量部、リン酸の10%水溶液1.0重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(8)を得た。
本発明農薬固形製剤(8)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは6.7であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)15.6重量部、リン酸の10%水溶液2.1重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(9)を得た。
本発明農薬固形製剤(9)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは6.3であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)14.1重量部、リン酸の10%水溶液3.6重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(10)を得た。
本発明農薬固形製剤(10)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは5.4であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)13.1重量部、リン酸の10%水溶液4.7重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(11)を得た。
本発明農薬固形製剤(11)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは4.7であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)10.4重量部、リン酸の10%水溶液7.3重量部をジュースミキサーを用いて撹拌混合して、本発明農薬固形製剤(12)を得た。
本発明農薬固形製剤(12)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは3.0であった。
フェンピラザミン51.2重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax80D、MeadWestvaco社製)37.29重量部、リン酸0.01重量部、自己乳化型シリコーン系消泡剤(KS−530、信越化学工業株式会社製)とイオン交換水との混合物(重量比1:4)0.5重量部及びイオン交換水117重量部を混合した後、横型ビーズミル(商品名:DYNO−MILL KDL、株式会社シンマルエンタープライゼス製)を用いて湿式粉砕し、フェンピラザミン懸濁液を得る。一方、リン酸二水素カリウム4重量部をイオン交換水23重量部に溶解し、リン酸二水素カリウム水溶液を得る。該フェンピラザミン懸濁液に該リン酸二水素カリウム水溶液及び自己乳化型シリコーン系消泡剤(商品名:KS−530、信越化学工業株式会社製)とイオン交換水との混合物(重量比1:4)12重量部を混合し、水性懸濁液を得る。該水性懸濁液を流動層造粒機(STREA−1、パウレック製)を用いて噴霧し、噴霧造粒に続いて流動層造粒を連続的に行う方法にて造粒し、農薬固形製剤を得る。
製造時の条件を以下に示す。
吐出速度:開始時5g/min、定常時25g/min
乾燥温度:開始時90℃、定常時80℃
熱風供給量:開始時85m3/h、定常時50m3/h
得られる農薬固形製剤1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは8以下である。
製造例1で調製したフェンピラザミン微粉末51.5重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5重量部、リグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)43.5重量部及びイオン交換水 300重量部を均一になるまで混合し、水性懸濁液を得た。該水性懸濁液を噴霧乾燥機(型式SD−1、東京理化器械株式会社製)を用いて噴霧乾燥して、比較農薬固形製剤(1)を得た。
比較農薬固形製剤(1)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは9.8であった。
製造例1で調製したフェンピラザミン微粉末77.3重量部、ポリカルボン酸カリウム(GeroponSC/213、Rhodia社製)5.0重量部及びリグニンスルホン酸ナトリウム(Reax85A、MeadWestvaco社製)17.7重量部をジュースミキサーを用いて撹拌混合して、比較農薬固形製剤(2)を得た。
本比較農薬固形製剤(2)1グラムとイオン交換水99グラムとの混合液の25℃におけるpHは10.0であった。
試験例1
本発明農薬固形製剤(1)~(12)及び比較農薬固形製剤(1)~(2)の各々10グラムをアルミ袋に入れて密封し、54℃の恒温器中に2週間静置した。その後、各々の農薬固形製剤について、3名のモニターにより以下の判定基準によりフェンピラザミン由来の臭気の官能試験を行った。3名の判定値の平均値を結果とした。結果を表1に示す。
判定基準
0:臭気無し
1:臭気あり
2:強い臭気あり
3:非常に強い臭気あり
0と1の間の臭気は0.5、1と2の間の臭気は1.5、2と3の間の臭気は2.5とした。
Claims (4)
- フェンピラザミンと酸成分とを含有する農薬固形製剤であって、該農薬固形製剤1グラムとイオン交換水99グラムとを混合したときの25℃におけるpHが8以下である農薬固形製剤。
- 酸成分がリン酸及び硫酸からなる群より選ばれる少なくとも1種である請求の範囲1に記載の農薬固形製剤。
- pHが3~6の範囲である請求の範囲1または2に記載の農薬固形製剤。
- 更にリグニンスルホン酸塩を含有する請求の範囲1~3のいずれかに記載の農薬固形製剤。
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US14/770,279 US9596844B2 (en) | 2013-02-28 | 2014-02-25 | Agrochemical solid formulation |
JP2015503076A JP6202084B2 (ja) | 2013-02-28 | 2014-02-25 | 農薬固形製剤 |
AU2014221668A AU2014221668B2 (en) | 2013-02-28 | 2014-02-25 | Solid agrochemical preparation |
EP14757774.6A EP2962563B1 (en) | 2013-02-28 | 2014-02-25 | Solid agrochemical preparation |
BR112015019320-0A BR112015019320B1 (pt) | 2013-02-28 | 2014-02-25 | formulação sólida agroquímica compreendendo fenpirazamina e ácido fosfórico |
ES14757774.6T ES2643069T3 (es) | 2013-02-28 | 2014-02-25 | Preparación agroquímica sólida |
CN201480010194.1A CN105007724B (zh) | 2013-02-28 | 2014-02-25 | 农用化学固体制剂 |
KR1020157024838A KR102118235B1 (ko) | 2013-02-28 | 2014-02-25 | 농약 고형 제제 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002316902A (ja) * | 2001-04-20 | 2002-10-31 | Sumitomo Chem Co Ltd | 植物病害防除剤組成物 |
JP2006249067A (ja) | 2004-10-27 | 2006-09-21 | Sumitomo Chemical Co Ltd | 粒状農薬組成物 |
JP2012012299A (ja) * | 2010-06-29 | 2012-01-19 | Nissan Chem Ind Ltd | 農薬活性成分の放出が制御される固型農薬製剤 |
JP2013231001A (ja) * | 2012-04-27 | 2013-11-14 | Kumiai Chemical Industry Co Ltd | 農園芸用殺菌剤 |
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AU2005220260B2 (en) * | 2004-10-27 | 2010-07-01 | Sumitomo Chemical Company, Limited | Granular pesticidal composition |
JP2010189354A (ja) * | 2009-02-20 | 2010-09-02 | Sumitomo Chemical Co Ltd | 水性懸濁状農薬組成物 |
US9167822B2 (en) | 2011-03-03 | 2015-10-27 | Dsm Ip Assets B.V. | Antifungal compositions |
JP5729025B2 (ja) * | 2011-03-08 | 2015-06-03 | 住友化学株式会社 | 農薬組成物 |
JP6013032B2 (ja) * | 2011-07-08 | 2016-10-25 | 石原産業株式会社 | 殺菌剤組成物及び植物病害の防除方法 |
CN102919255A (zh) * | 2012-10-31 | 2013-02-13 | 青岛润生农化有限公司 | 农用复配杀菌剂 |
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JP2002316902A (ja) * | 2001-04-20 | 2002-10-31 | Sumitomo Chem Co Ltd | 植物病害防除剤組成物 |
JP2006249067A (ja) | 2004-10-27 | 2006-09-21 | Sumitomo Chemical Co Ltd | 粒状農薬組成物 |
JP2012012299A (ja) * | 2010-06-29 | 2012-01-19 | Nissan Chem Ind Ltd | 農薬活性成分の放出が制御される固型農薬製剤 |
JP2013231001A (ja) * | 2012-04-27 | 2013-11-14 | Kumiai Chemical Industry Co Ltd | 農園芸用殺菌剤 |
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BR112015019320B1 (pt) | 2020-06-30 |
ZA201507113B (en) | 2017-01-25 |
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AU2014221668B2 (en) | 2016-12-15 |
EP2962563A1 (en) | 2016-01-06 |
BR112015019320A2 (pt) | 2017-07-18 |
US20160000069A1 (en) | 2016-01-07 |
JPWO2014133179A1 (ja) | 2017-02-09 |
KR102118235B1 (ko) | 2020-06-02 |
AU2014221668A1 (en) | 2015-08-20 |
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EP2962563B1 (en) | 2017-09-20 |
CN105007724B (zh) | 2017-05-31 |
KR20150123836A (ko) | 2015-11-04 |
JP6202084B2 (ja) | 2017-09-27 |
CL2015002349A1 (es) | 2016-03-04 |
US9596844B2 (en) | 2017-03-21 |
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