WO2005089544A1 - 徐放性農園芸用粒剤組成物 - Google Patents
徐放性農園芸用粒剤組成物 Download PDFInfo
- Publication number
- WO2005089544A1 WO2005089544A1 PCT/JP2005/005089 JP2005005089W WO2005089544A1 WO 2005089544 A1 WO2005089544 A1 WO 2005089544A1 JP 2005005089 W JP2005005089 W JP 2005005089W WO 2005089544 A1 WO2005089544 A1 WO 2005089544A1
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- WO
- WIPO (PCT)
- Prior art keywords
- active ingredient
- pesticidal
- multilayer
- granular composition
- wax
- Prior art date
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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
- A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
-
- 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
Definitions
- the present invention relates to a multilayer-coated agricultural chemical granule composition having excellent sustained-release properties.
- nursery box application method methods to control pests and insects in this field for a long time. Also, in the nursery box application method, various mixed preparations have been devised and used for the purpose of labor saving and resource saving in which only a single agent is used.
- the preparations for which such a method can be used are limited to two or more pesticidal active ingredients with similar release characteristics, consist of two or more pesticide active ingredients with different release characteristics, and A formulation that satisfies the user's requirements, such as controlling the release of the drug separately, has not been known.
- the microcapsule pill is an ideal release control method because the release characteristics can be changed by controlling its film thickness, but the pesticidal active ingredient which can be applied is limited due to the high reactivity of the film forming component used. In addition, the production cost of the film-forming process, etc., is high, and chemicals (reactive monomers, curing agents, etc.) that are problematic in terms of toxicity are used and have problems such as release to the environment. .
- As a coating method a method of forming a film or a matrix by using a natural resin, a polymer compound, or the like has been devised, and the release controllability can be easily imparted. In particular, proposals have been made until the release of a mixture containing pesticidal active ingredients that requires different release characteristics can be controlled.
- the water-eluting insecticide acetamiprid and similarly the water-eluting fungicide probenazole, are pesticidal active ingredients that have been proposed for application to nursery boxes in vegetables, and are to be transplanted to the field.
- a controlled release mixture is required for the purpose of maintaining efficacy afterwards.
- a mixture of granules that can satisfy the user's requirements in terms of maintaining efficacy and avoiding phytotoxicity No agent was proposed.
- Patent Document 1 JP-A-07-165505
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-279799
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-186004
- Patent Document 4 JP 2002-029903 A
- Patent Document 5 Japanese Patent Application Laid-Open No. 2002-179505
- Patent Document 6 JP-A-2000-0444404
- the purpose of the present invention is to control the release of nuclear granules at a high degree (the duration of potency is controlled to be at least 10 times that of the granules that are not applied or controlled for release, the same applies hereinafter). And its outer layer is mild (the duration of the effect is controlled to be equal to or less than 10 times that of the granules without application of the drug substance or release control, the same applies hereinafter) Inexpensive sustained-release agricultural and horticultural granule compositions containing one or more different pesticide active ingredients, characterized by being composed of pesticide active ingredients that require controlled release of To provide.
- the present inventors have made intensive efforts to solve these problems, and as a result, the granules containing the pesticidal active ingredient to be highly sustained-released should be mildly sustained-released into granules impregnated with wax.
- the powder containing the pesticidal active ingredient is applied using a wax emulsion containing a sizing agent to form an outer layer, which cannot be obtained by simple mixing and sustained release.
- the present inventors have found that mixed granules having controlled and different release characteristics can be obtained and completed the present invention.
- a multilayer pesticidal granule characterized by having a first pesticidal active ingredient-containing layer and a core granule in which a wax layer is layered from the center, and a second pesticide active ingredient-containing layer in the outermost shell layer.
- the first pesticide active ingredient-containing layer is impregnated with a porous mineral impregnated with the molten pesticide active ingredient, or an aqueous suspension of the pesticide active ingredient or a solution in which the pesticide active ingredient is dissolved in a solvent. And then dried to obtain a porous mineral substance, wherein the multilayer pesticidal particulate composition according to (1) or (2) is
- Wax layer strength S a layer formed from an aqueous solution of wax emulsion is provided in the outermost shell layer of the wax layer.
- the water-soluble polymer paste is at least one selected from the group consisting of alpha-starch, dextrin, hydroxypropylcellulose, carboxymethylcellulose, polybutyl alcohol, polybutylpyrrolidone, and methylcellulose.
- the second pesticidal active ingredient-containing layer is formed by adhering or coating the powdery pesticide active ingredient or the powdery pesticide active ingredient-containing composition to the core granules having a wet surface.
- the nuclear granules having a wet surface are coated with a solution containing a water-soluble polymer paste on the substance having the first pesticidal active ingredient-containing layer, and are core granules before drying.
- the first pesticidal active ingredient is a neonicotinoid insecticide, (1) the multilayer pesticidal granular composition according to any one of (11),
- the second pesticidal active ingredient is probenazole, wherein (1) one of (13) Multi-layer pesticidal granular composition according to any one,
- a mixed granule containing components to be controlled for different release is provided at a low cost, and is required in the usage scene without depending on physical properties such as water solubility inherent to the drug substance.
- a sustained-release agricultural / horticultural mixed granule composition capable of imparting dissolution characteristics according to the sustained-release property.
- the multilayer pesticidal granular composition of the present invention comprises a first pesticidal active ingredient-containing layer, a core granule in which a wax layer is layered from the center, and a second pesticidal active ingredient-containing layer in the outermost layer. It is characterized by having.
- the granular composition of the present invention has a structure in which the first pesticidal active ingredient-containing layer and the wax layer are laminated in a layered structure and the outermost shell has the second pesticidal active ingredient-containing layer.
- a carrier for immobilizing the first pesticidal active ingredient-containing layer is provided on the central core, the first pesticide active ingredient-containing layer and the wax layer or the wax layer and the second
- the layer containing another component may be provided in the layer containing the pesticidal active ingredient, or a plurality of layers having different component contents may be provided in each layer. It is preferable to have a structure in which a wax layer is provided thereon and / or a second pesticidal active ingredient layer is provided above the wax layer.
- the shape of the granular composition is not particularly limited, but may be a true sphere, a rugby ball, a column, or the like. There is no particular limitation.
- the pesticidal active ingredient contained in the first pesticidal active ingredient-containing layer is not particularly limited, but it is preferable to use one having higher solubility in water than the second pesticide active ingredient.
- acetamipiride, Neonicotinoid insecticides such as imidacloprid, fipronil, etofenprox, ditenviram, benfracarb, and carbosulfan can be exemplified.
- the pesticidal active ingredient contained in the outer layer portion needs to have an amount capable of retaining the coating, but can be diluted with an organic / inorganic inactive ingredient which can be usually used for pesticides.
- the content is preferably less than 50% of the whole preparation, particularly preferably less than 30%.
- the content of the first pesticidal active ingredient is preferably less than 10% by weight of the whole granular composition, and more preferably less than 5% by weight, so that the release controllability of the wax coating and the like is constant.
- Mashed grease is preferably in the range of 0.05 to 10% by weight, and more preferably in the range of 0.05 to 5% by weight.
- the first pesticidal active ingredient-containing layer is not particularly limited as long as it contains the pesticidal active ingredient, and is not particularly limited as long as it can form a layered structure.
- a porous mineral substance as a carrier.
- examples of such minerals include pumice, molded calcined diatomaceous earth, granular vermiculite, and granular activated carbon.
- pumice or shaped calcined diatomaceous earth particles are preferred.
- the particle size of the porous mineral is not particularly limited, but is preferably from 300 ⁇ m to 3 mm, more preferably from 500 x m to 2 mm. That is, pumice is used, and stone is used.) Brands containing particles with a particle size of about 1 mm, such as 11 light No. 3 (stone; manufactured by 11 light industry), are preferred. These particle sizes are also preferred when used for granules.
- the thickness is less than 500 microns
- some particles cannot be formed into core granules and adhere to other particles. If it exceeds 2 mm, it will become a force and poor soil coverage when spraying. This is because
- the method for supporting the first pesticidal active ingredient on the porous mineral substance is not particularly limited, but specific examples include the following methods.
- a method of melting and impregnating a porous mineral substance with an agricultural chemical active ingredient 1.
- the pesticidal active ingredient impregnated in the core granules preferably has a melting point of 50 ° C to 150 ° C, preferably 60 ° C to 120 ° C.
- a method of drying a porous mineral impregnated with an aqueous suspension of a pesticidal active ingredient 1.
- the aqueous solid suspension used is preferably an aqueous solution in which the pesticidally active ingredient has been ground to less than 20 microns, preferably less than 10 microns.
- a method for drying porous minerals impregnated with a liquid in which a pesticide active ingredient is dissolved in a solvent As a solvent for dissolving a pesticide active ingredient, it has a boiling point of 100 ° C or less, preferably 50-85 ° C. Organic solvents such as acetone, hexane, methanol, and ethanol, or water can be used.
- the solid wax used in the wax layer of the present invention is particularly limited as long as it is a wax having a low melting point lower than the melting point of the solid pesticidal active ingredient or a low compatibility with the liquid pesticidal active ingredient. It is not specified, but it can be any one of petroleum paraffin, wood wax, carnauba wax, or a mixed melt of two or more.
- the softening point is 60 ° C or more and less than 100 ° C. Things are desirable.
- a layer formed using an aqueous solution of wax emulsion is provided as the outermost shell layer of the wax layer.
- Aqueous emulsion solution is sold as a commercially available floor protector. Water-based wax emulsion paints can be used. The affinity with the lower wax layer makes it possible to use paraffin-based emulsion (Nippon Seimitsu: EMUSTAR-0471, etc.). This is better.
- the method of forming the wax layer is not particularly limited. Specifically, a solid carrier impregnated with or containing the pesticidal active ingredient is heated to a temperature equal to or higher than the melting point of the wax, and if necessary, other adjuvants are added together. Put wax into a tumbling granulator, add wax, perform melt coating and impregnation, further cool to around the wax melting point, remove the wax remaining on the surface, For example, a method of absorbing by adding carbon or the like, suppressing aggregation of core granules, and cooling the mixture to room temperature with stirring can be exemplified.
- a conventionally known method for producing pesticide granules specifically, a stirring granulation method, a fluidized bed granulation method, or the like can be used. Since the unevenness of the wax coating of the core granules loses the release controllability, it is preferable to use a wax amount that is at least the oil-absorbing capacity of the porous mineral used (the maximum amount that absorbs the liquid substance as it is apparently solid). .
- the method for forming the wax layer with the aqueous wax emulsion solution is not particularly limited. Specifically, similarly to the method described above, the first pesticide active ingredient-containing layer covered with the wax layer is used. A method of forming a substance having the following formula in a tumbling granulator by using an appropriate amount of an aqueous solution of wax emulsion to wet the surface.
- the wax emulsion can contain an appropriate amount of a water-soluble polymer paste to maintain the fixation of the second pesticidal active ingredient layer, if necessary.
- a water-soluble polymer paste to maintain the fixation of the second pesticidal active ingredient layer, if necessary.
- the second pesticide active ingredient and its ability to form a film which affects the release control of the second pesticide ingredient.
- it imparts a sustained release property of each granular composition and a property of reducing water repellency appearing in a wax layer.
- water-soluble polymer paste examples include one or a combination of two or more of alpha-monostarch, dextrin, hydroxypropylcellulose, carboxymethylcellulose, polybutyl alcohol, polybutylpyrrolidone, and methylcellulose. be able to.
- the paraffin wax solid content contained in the aqueous wax emulsion solution may be at least an amount capable of wetting the core granules, but if used excessively, the release controllability of the outer layer portion is excessively suppressed. It is more preferably below 0.1% by weight, more preferably in the range of 0.1-10% by weight, more preferably in the range of 0.1-2% by weight. It is more preferably in the range of 11 to 12% by weight.
- the pesticidal active ingredient in the second pesticidal active ingredient-containing layer of the present invention is not particularly limited, but a component having higher solubility in water than the first pesticide active ingredient is preferred.
- the fungicide to be used is preferred Specifically, probenazole, triflumizonole, thiophanate methyl and the like can be exemplified.
- the first pesticide active ingredient and the second pesticide active ingredient may be the same or different.
- the content of the pesticidal active ingredient is not particularly limited, but is preferably in the range of 0.05 to 50% by weight of the whole granular composition, and more preferably in the range of 0.1 to 30% by weight. Is preferred.
- Other components are not particularly limited as long as they do not inhibit pesticide activity, and are not particularly limited, clay, bentonite, talc, zeolite, acid clay, activated clay, atapargas clay, diatomaceous earth, baking soda, calcium carbonate, Magnesium carbonate, aluminum oxide, amorphous silicon dioxide, glucose, sugar, lactose, gum arabic, dextrin, polyethylene glycol, polyvinylinoleanol, carboxymethylcellulose, sodium alginate, pectin, activated carbon, wood flour, cork, rice bran , Bran, rice husk, sodium sulfate, ammonium sulfate, potassium chloride, ammonium phosphate, urea, citric acid, sodium citrate, sodium lig
- the method for forming the second pesticidal active ingredient-containing layer is not particularly limited, and specific examples thereof include a normal tumbling granulation method, and more specifically, nuclear granules. It is possible to exemplify a method of coating or adhering the second pesticidal active ingredient-containing composition in a wet state of the surface. In order to obtain particles having a target particle size distribution, tumbling granulation is further performed, followed by drying to obtain a target granule.
- the method for bringing the surface of the core granules into a wet state is not particularly limited, and specific examples thereof include a method of contacting or adhering an aqueous wax emulsion solution to the surface.
- the nuclear granules may be disintegrated, wet the nuclear granules with a wax emulsion in a rotating container, and then add the second pesticidal active ingredient-containing composition and adhere or coat the same. It is preferable to use a rotating stir bar or coat Is preferred.
- the second pesticidal active ingredient-containing composition may be used as it is if the pesticidal active ingredient is solid, or may be pulverized to an appropriate particle size with a pin mill or the like together with an appropriate bulking ingredient, an auxiliary agent, etc.
- a solid powder carrier which has been adsorbed on a suitable solid powder carrier having oil absorbing ability and then powdered can be used.
- the particle size of the second pesticidal active ingredient-containing composition is smaller than the preferred particle size of the core granules, preferably 500 ⁇ m or less, and more preferably 5 ⁇ m or more and 100 am or less.
- the second pesticidal active ingredient-containing composition may appropriately contain a water-soluble polymer, a water-soluble salt, and the like for controlling the release characteristics of the drug substance.
- the core granules and the outer layer have different release control mechanisms, that is, the sustained release of the core granules has a wax amount, and the second pesticide active ingredient-containing layer has a wax layer. It is controlled by the amounts and ratios of Marjion and polymeric paste and the individual release controllability, and the dissolution rate of the pesticidal active ingredient is determined in consideration of the concentration at which the target pesticide has a controlling effect and the period during which the concentration is maintained. Therefore, it can be adjusted by adjusting the amount of the pesticidal active ingredient to be contained and the ability of sustained release.
- the multilayer pesticidal granular composition of the present invention is the most suitable composition when it is used for a crop or the like grown by the nursery box application method.
- the remaining powder 1Z3 was added and stirred to complete a second pesticidal active ingredient-containing layer.
- the resulting multilayered product was blow-dried at 45 ° C for 3 hours to obtain the desired multilayered granules.
- Nuclear granules 1 (610 g) produced in the same manner as in Example 1 were stirred and mixed with paraffin wax emulsion (EMUSTAR-0471: solid content 30%) and 10% PVA (Gohsenol NL-05G (Nihon Gosei). 100 g of an aqueous solution obtained by mixing 1: 1 aqueous solution was added, and when the whole was uniformly wetted, 260 g of probenazole and 11 Og of clay were mixed and pulverized to form a second pesticide active ingredient-containing layer-forming powder. First, 2/3 of the powder was added and stirred, and the powder was completely coated.
- the coated core granules became moist, the remaining powder was added and stirred to form the second pesticide active ingredient-containing layer. Was completed.
- the resulting multilayer formed product was blow-dried at 45 ° C for 3 hours to obtain the desired multilayer granule.
- Core granules 1 made in the same manner as in Example 1 were subjected to a wax-free emulsion coating process.
- PVA paraffin wax emulsion
- Example 1 Example 2, Example 2, Comparative Example 1, Comparative Example 2 and commercially available acetamipride granules (mospiran granules), probenazole granules and probenazole sustained-release granules (Dr. olise) Using
- FIG. 1 is a diagram of a probenazole elution curve of the present invention.
- FIG. 2 is a graph of an acetamiprid elution curve of the present invention.
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
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Abstract
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Priority Applications (1)
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JP2006511265A JP4755086B2 (ja) | 2004-03-22 | 2005-03-22 | 徐放性農園芸用粒剤組成物 |
Applications Claiming Priority (2)
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JP2004-081948 | 2004-03-22 | ||
JP2004081948 | 2004-03-22 |
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WO2005089544A1 true WO2005089544A1 (ja) | 2005-09-29 |
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PCT/JP2005/005089 WO2005089544A1 (ja) | 2004-03-22 | 2005-03-22 | 徐放性農園芸用粒剤組成物 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010055002A1 (en) * | 2008-11-17 | 2010-05-20 | Basf Se | Starch-containing granular formulation |
ITUB20160231A1 (it) * | 2016-01-29 | 2017-07-29 | S I P C A M Soc It Prodotti Chimici E Per Lagricoltura Milano S P A | Composizioni in granuli ad attività insetticida |
CN115124644A (zh) * | 2021-03-29 | 2022-09-30 | 中国石油化工股份有限公司 | 一种吸油膨胀剂、缓释膨胀剂及其制备方法和应用 |
Citations (3)
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JP2000239105A (ja) * | 1999-02-16 | 2000-09-05 | Agrevo Japan Kk | 徐放性農薬製剤およびその製造方法 |
JP2002179505A (ja) * | 2000-12-12 | 2002-06-26 | Mitsui Chemicals Inc | 被覆型徐放性農薬粒剤 |
JP2003073205A (ja) * | 2001-09-04 | 2003-03-12 | Mitsui Chemicals Inc | 被覆型徐放性粒剤 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000191407A (ja) * | 1998-12-25 | 2000-07-11 | Nissan Chem Ind Ltd | 被覆農業用組成物 |
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- 2005-03-22 JP JP2006511265A patent/JP4755086B2/ja not_active Expired - Fee Related
- 2005-03-22 WO PCT/JP2005/005089 patent/WO2005089544A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000239105A (ja) * | 1999-02-16 | 2000-09-05 | Agrevo Japan Kk | 徐放性農薬製剤およびその製造方法 |
JP2002179505A (ja) * | 2000-12-12 | 2002-06-26 | Mitsui Chemicals Inc | 被覆型徐放性農薬粒剤 |
JP2003073205A (ja) * | 2001-09-04 | 2003-03-12 | Mitsui Chemicals Inc | 被覆型徐放性粒剤 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010055002A1 (en) * | 2008-11-17 | 2010-05-20 | Basf Se | Starch-containing granular formulation |
JP2012508713A (ja) * | 2008-11-17 | 2012-04-12 | ビーエーエスエフ ソシエタス・ヨーロピア | デンプン含有顆粒製剤 |
CN102215677B (zh) * | 2008-11-17 | 2014-07-16 | 巴斯夫欧洲公司 | 含淀粉的颗粒配制剂 |
ITUB20160231A1 (it) * | 2016-01-29 | 2017-07-29 | S I P C A M Soc It Prodotti Chimici E Per Lagricoltura Milano S P A | Composizioni in granuli ad attività insetticida |
WO2017129496A1 (en) * | 2016-01-29 | 2017-08-03 | S.I.P.C.A.M.Societa' Italiana Prodotti Chimici E Per L'agricoltura Milano S.P.A. | Granular compositions having insecticidal activity |
CN115124644A (zh) * | 2021-03-29 | 2022-09-30 | 中国石油化工股份有限公司 | 一种吸油膨胀剂、缓释膨胀剂及其制备方法和应用 |
CN115124644B (zh) * | 2021-03-29 | 2023-07-07 | 中国石油化工股份有限公司 | 一种吸油膨胀剂、缓释膨胀剂及其制备方法和应用 |
Also Published As
Publication number | Publication date |
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JP4755086B2 (ja) | 2011-08-24 |
JPWO2005089544A1 (ja) | 2008-01-31 |
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