EP2046117A2 - Formulations de granules pluri-compartimentées destinées à des principes actifs - Google Patents

Formulations de granules pluri-compartimentées destinées à des principes actifs

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Publication number
EP2046117A2
EP2046117A2 EP07785939A EP07785939A EP2046117A2 EP 2046117 A2 EP2046117 A2 EP 2046117A2 EP 07785939 A EP07785939 A EP 07785939A EP 07785939 A EP07785939 A EP 07785939A EP 2046117 A2 EP2046117 A2 EP 2046117A2
Authority
EP
European Patent Office
Prior art keywords
shaped body
matrix
agents
compartment
body according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07785939A
Other languages
German (de)
English (en)
Inventor
Claudia Letmathe
Axel Eble
Olaf Bork
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Intellectual Property GmbH
Original Assignee
Bayer Technology Services GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Technology Services GmbH filed Critical Bayer Technology Services GmbH
Publication of EP2046117A2 publication Critical patent/EP2046117A2/fr
Withdrawn legal-status Critical Current

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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
    • A01N25/12—Powders or granules
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/40—Fertilisers incorporated into a matrix
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
    • A61K9/146—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic macromolecular compounds

Definitions

  • the present invention relates to an active substance-containing shaped body comprising at least two compartments with different material composition, each compartment independently having at least one active ingredient. Furthermore, the present invention relates to a method for producing such shaped bodies and to its use.
  • granules containing active ingredients usually comprise one or more active substances which are formulated with inorganic fillers.
  • processes such as plate, fluidized-bed agglomeration / granulation and low-pressure extrusion and spray-drying are used.
  • DE 100 22 989 A1 describes the use of a combination of an agrochemical active ingredient and a solid carrier material surrounding the active ingredient for suppressing antagonistic interactions in a mixture of the active ingredient surrounding the carrier material and at least one further agrochemical active ingredient.
  • Preferred formulations containing such a combination include herbicides combined with a carrier together with a safener and / or a growth regulator. The formulations make it possible to suppress antagonistic interactions between different drugs.
  • WO 1999/056540 discloses a solid preparation of a plant protection agent obtainable by melt extrusion and shaping a mixture of 0.1-80% by weight of an active ingredient used in crop protection or a combination of such active substances, 10-80% by weight of at least one mineral filler -20% by weight of inorganic or organic additives and ad 100% by weight of at least one thermoplastic, water-insoluble polymer. Furthermore, this document discloses that by coextrusion or subsequent coating, for example in a fluidized bed, with the aid of optionally active ingredient and polymer-containing solutions or dispersions, a layer structure can be realized which modulates the release of the molding or includes an additional active ingredient.
  • this document does not disclose the closer composition of the outer layer. Furthermore, it is based on the sedimentation of the granules and not just on rapid redispersibility.
  • the present invention has set itself the goal of remedying at least one of the aforementioned disadvantages in the prior art.
  • it has set itself the goal of providing a formulation of active ingredients in moldings with multiple compartments, which is easy to implement, can be achieved with inexpensive starting materials and / or which is rapidly redispersible in water, for example in less than 600 seconds.
  • an active substance-containing shaped body comprising at least two compartments with different material composition, each compartment independently having at least one active ingredient and wherein in the individual compartments the active ingredient is contained in each case in a matrix and the respective matrix at least one filler in which the filler content of the respective matrix, based on the total weight of the respective matrix, is> 20% by weight to ⁇ 100% by weight.
  • Active ingredient in the context of the present invention denotes substances or substance mixtures which have a desired effect on an organism by the user, regardless of whether this organism is of human, animal, plant or other nature.
  • “Shaped body” in the context of the present invention initially denotes any solid body which is hard at room temperature, waxy elastic, amorphous or crystalline, but is not or not yet present in the liquid state of aggregation.
  • the shaped body can be produced, for example, by extrusion, coextrusion or pressing.
  • “Compartment” in the sense of the present invention denotes a delimited area of the shaped body, which is distinguishable from other areas of the shaped body.
  • “Matrix” in the sense of the present invention refers to the substance or substance mixture surrounding the active substance.
  • the matrix may comprise fillers, binders, dispersants, swelling agents, preservatives, lubricants, antioxidants, antifoam agents, wetting agents, surfactants and / or plasticizers or plasticizers.
  • the filler may be inert to the active ingredient used
  • the filler for the individual components of the molding may be the same or different for the individual compartments.
  • a shaped body according to the present invention The advantages of a shaped body according to the present invention are that the end user receives a product with a precisely matched combination of active ingredients, which he can also measure accurately.
  • the fillers used are inexpensive to obtain. Their handling is known and easily adapted to the desired result.
  • Another advantage is that the problem of segregation of formulations with different moldings is avoided. It can be represented by the choice of matrix components products which redispers in water, for example when preparing a spray mixture, an ointment or a beverage, quickly. Redispersible times achievable with moldings according to the invention are, for example, ⁇ 600 seconds. If a partial rapid redispersibility is desired, the choice of matrix components gives products with a controlled-release characteristic which releases the active ingredient combination hitherto inaccessible by incompatibilities over an extended period of time on an agricultural area or on the target organism.
  • the filler content of the respective matrix based on the total weight of the respective matrix, to be> 40% by weight to ⁇ 90% by weight or> 70% by weight to ⁇ 80% by weight.
  • the active ingredients used in the various compartments of the molding are incompatible, ie incompatible with each other. This means that at least one of the active ingredients in direct contact with other drugs would be adversely affected. For example, direct contact can result from a common presence in the fixed phase. The detrimental changes can be rapid or occur only during prolonged storage.
  • Parameters which can describe incompatibilities of active substances are, for example, the hydrophilicity / hydrophobicity (expressed by the log K 0 W values), acid or base strength (excl. pressed by the pK s / pK b values) and solubility products of salts of anions of one drug and cations of the other drug (to describe the precipitation of poorly soluble salts).
  • special case-sensitive molecules can undergo chemical reactions with each other.
  • a further advantage of the present invention is that agents which are incompatible with one another can also be combined into a single shaped body if the filler content of the respective matrix, based on the total weight of the respective matrix, is from> 20% by weight to ⁇ 100% by weight. %.
  • the filler content of the respective matrix is from> 20% by weight to ⁇ 100% by weight. %.
  • the shaped bodies according to the invention or the active substances contained in the individual compartments are already protected against incompatibilities during the production of the body.
  • the total weight of the matrices is> 0.01% by weight to ⁇ 99.99% by weight, preferably> 1% by weight to ⁇ 50% by weight. %, more preferably> 4 wt .-% to ⁇ 10 wt .-%, from.
  • matrix fractions make it possible to use rapidly sinking and thus rapidly distributing moldings when applying a spray mixture or beverage.
  • the molding comprises at least a first and a second compartment, wherein the weight ratio of the two compartments to each other a ratio of> 1: 1 to ⁇ 99: 1, preferably> 2: 1 to ⁇ 80: 1, more preferably> 5: 1 to ⁇ 50: 1. If the molding according to the invention has compartments with such weight ratios, then the active ingredients of the two compartments can be released in a desired time ratio. For example, the active ingredient of the first component may be released much more rapidly than that of the second. Another example is the desired almost simultaneous release of the active ingredients.
  • the shaped body comprises at least a first and a second compartment, wherein in the first compartment, the weight ratio of the total of the active ingredients to the total of the fillers> 0.01: 99.99 to ⁇ 99.99: 0.01, preferably> 1:50 to ⁇ 50: 1, more preferably> 1: 5 to ⁇ 5: 1, and in the second compartment the weight ratio of the totality of the active ingredients to the entirety of the fillers> 0, 01: 99.99 to ⁇ 99.99: 0.01, preferably> 1:50 to ⁇ 50: 1, more preferably> 1: 5 to ⁇ 5: 1.
  • concentrations of the active ingredients in the fillers advantageously leads to the active ingredients being diluted to such an extent in the inert medium that they
  • Vpinp cirmifiV ⁇ -nt # »rt cr ViäH1ir »Vnar» T ⁇ PQV + I ⁇ TIA ⁇ * v ⁇ + eXtSmSIl xv Cdlct u Ildcn WlC Llift-
  • Oxygen, light, etc. can enter.
  • the active compounds are agrochemicals, preferably selected from the group comprising herbicides, insecticides, fungicides, nematicides, pesticides, molluscicides, acaricides, fertilizers, growth regulators, safeners, bioenhancers and / or avian repellents.
  • Active ingredients means substances or mixtures of substances used in private or commercial agriculture to achieve a desired result in terms of plant growth, pest infestation or the like.
  • the abovementioned substance classes cover the most common active ingredients used in agriculture and are therefore in the greatest demand of the user. It is possible to have active substances of the same substance class in the individual compartments of the shaped body according to the invention or to use active substances from different classes in the individual compartments.
  • herbicides may be selected from the group comprising:
  • ACD 10614 acetochlor, acifluorfen, acifluorfen sodium, aclonifen, acrolein, AKH-7088, alachlor, allidochlor, alloxydim, alloxydim sodium, ametridione, ametryn, amibuzin, amicarbazone, amidosulfuron, amiprofos-methyl, amitrole, ammonium sulfamate , Anilofos, anisuron, asulam, asulam sodium, atraton, atrazine, azafenidine, azimsulfuron, aziprotryne,
  • Bromoxynil heptanoates bromoxyniloctanoate, bromoxynil potassium, bromopyrazone, butachlor, butafenacil, butamifos, butenachlor, buthidazole, buthiuron, butraline, butroxydim, buturon, butylate,
  • Glufosinate Glufosinate-Ammonium, Glyphosate, Glyphosate-Trimesium, Glyphosate-Arnmonium, Glyphosate-Isopropylammonium, Glyphosate-Sodium,
  • MCPA MCPA-butotyl, MCPA-2-ethylhexyl, MCPA-dimethylammonium, MCPA-potassium, MCPA-sodium, MCPA-thioethyl, MCPB, MCPB-ethyl, MCPB sodium, mecoprop, mecoprop-P, medinoterb acetate, mefenacet, mefluidide, Mesoprazine, mesosulfuron-methyl, mesotrione, metharotene, metam-sodium, metamifop, metamitron, metazachlor, metflurazon, methabenzthiazuron, methalpropalin, methazol, methiobencarb, methiuron, methometon, methoprotryn, methoxyphenone, methyl isothiocyanate, methylarsonic acid, methyldymrone, metobenznone , Metobromur
  • OCH OCS 21693
  • oleic acid fatty acids
  • orbencarb oryzalin
  • oxadiargyl oxadiazon
  • oxapyrazone oxasulfuron
  • oxaziclomefon oxyfluorfen
  • Pvrazosulfuron-ethyl Pyrazoxyfen. Pyribenzoxim. Pyributicarb. Pyriclor. Pyridate, Pyriftalid, Pyriminobac-Methyl, Pyrithiobac-Sodium,
  • insecticides may be selected from the group comprising:
  • Bacillus thuringiensis Delta endotoxins Barium polysulfide, Bayer 22/190, Bayer 22408, Bendiocarb, Benfuracarb, Bensultap, Beta-Cyfluthrin, Beta-cypermethrin, Bifenthrin, Bioallethrin, Bioalbhritol S-cyclopentenyl isomer, Biopermethrin, Bioresmethrin, Bis (2-chloroethyl) ether, bistrifluron, borax, bromfenvinfos, bromocycles, bromophos, bromophos-ethyl, bufencarb, buprofezin, butacarb, butathiofos, butocarboxime, butonate, butoxycarboxime,
  • DAEP dazomet, DDT, decarbofuran, deltamethrin, demephione, demeton-S-methyl, demeton-S-metbyl sulphone, demeton, diafenthiuron, dialifos, diamidafos, diazinon, dicapthone, dichlofenthione, dichlorvos, dicrotophos, dicyclanil, dieldrin, diethyl 5-methylpyrazol-3-yl phosphate, diflubenzuron, dimefox, dimethoate, dimethrin, dimethylvinphos, dimetilane, dinex, dinoseb, dinotefuran, diofenolane, dioxabenzofos, dioxacarb, dioxathione, disulfoton, dithicrofos, DNOC, DSP,
  • EI 1642 emamectin, emamectin benzoate, EMPC, empenthrin [(EZ) (1R) isomer], endosulfan, endothione, endrin, ENT 92, EPBP, EPN, epofenonan, esfenvalerate, ethiofenocarb, ethion, ethoate-methyl, ethoprophos, ethylene dibromide , Ethylene dichloride, etofenprox, Etrimfos,
  • Famphur Fenchlorphos, Fenethacarb, Fenfluthrin, Fenitrothion, Fenobucarb, Fenoxacrim, Fenoxycarb, Fenpirithrin, Fenpropathrin, Fensulfothion, Fenthion, Fenvalerate, Fipronil, Flonicamid, Flucofuron, Flucycloxuron, Flucythrinat, Fluenetil, Flufenoxuron, Flufenprox, Flumethrin, Fluvalinate, FMC 1137, Fonofos, Formetanat, Formetanathydrochloride, Formothion, Formparanate, Fosmethilane, Fospirat, Fosthiazat, Fosthietan, Furathiocarb, Furethrin, Gamma-HCH, GY-81,
  • Imidacloprid imiprothrin, indoxacarb, IPSP, isazofos, isobenzane, isodrin, isofenphos, isolan, uupi u ⁇ i u, xowpi up ⁇ iw- ⁇ iiciiiu ⁇ .y ⁇ iiiiiui.iiiupiiu-ipiiui ⁇ la ⁇ uuutti, u ⁇ uuuii,
  • O-2,5-dichloro-4-iodo-phenyl-O-ethyl-ethylphosphonothioate O, O-diethyl-O-4-methyl-2-oxo-2H-chromen-7-yl-phosphorothioate, O, O-diethyl-O- 6-methyl-2-propylpyrimidin-4-yl phosphorothioate, 0,0,0 ', O' -tetrapropyldithiopyrophosphate, oleic acids (fatty acids), omethoate, oxamyl, oxydemeton-methyl, oxide profox, oxydisulfone,
  • fungicides may be selected from the group comprising:
  • Barium polysulfide Bayer 32394, benalaxyl, benodanil, benomyl, benquinox, bentaluron, benzamacril, benzamorf, binapacryl, biphenyl, bis (methylmercury) sulfate, bis (tributyltin) oxides, bitertanol, blasticidin-S, borax, Bordeaux mixture, bromuconazole , Bupirimate, buthiobate,
  • EBP edifenphos, epoxiconazole, ESBP, etaconazole, etem, ethaboxam, ethirimol, ethoxyquin, etridiazole,
  • Gliotoxin glyodine, griseofulvin, guazatine, guazatine acetate, GY-81,
  • ICIA0858 imazalil, imazalil sulphate, imibenconazole, iminoctadine, iminoctadine triacetate, iminoctadin tris (albesilat), ipconazole, Iprobenfos, iprodione, iprovalicarb, isopamphos, isoprothiolane, isovaledione,
  • Salicylanilide sulfur, sec-butylamine, silthiofam, simeconazole, sodium 2-phenylphenoxide, sodium pentachlorophenoxide, spiroxamine, SSF-109, sultoprene, SYP-L190,
  • nematicides may be selected from the group comprising:
  • Metam Metam Sodium, Methyl Isothiocyanate, Myrothecium Verrucaria Composition
  • molluscicides may be selected from the group comprising:
  • Tazimcarb, thiodicarb, trifene morphine and / or trimethacarb are examples of the following compounds.
  • growth regulators may be selected from the group comprising:
  • Calcium cyanamide carbaryl, carvone, chlorofluorine, chlorofluorol-methyl, chlormequat, chlormevate chloride, chlorophonium chloride, chloropropham, ciobutide, clofencet, clofencet-potassium, cI-nc / -Ic
  • Daminozide dicamba-methyl, dichloroflorene, dikegulac, dikegulac sodium, dimethipine, di mexano,
  • maleic hydrazide maleic hydrazide potassium salt, MCPB ethyl, mefluidide, mepiquat, mepiquat chloride, methasulfocarb,
  • N- (2-ethyl-2H-pyrazol-3-yl) -N'-phenylurea N-m-tolylphthalamic acid, N-pyrrolidinucinamic acid, N-decanol, N-phenylphthalamic acid, nitrophenolate mixture, nonanoic acid,
  • Paclobutrazole piproctanyl bromide, prohexadione, prohexadione calcium, prophy, propyl 3-tert-butylphenoxyacetate, pydanone,
  • bird repellents may be selected from the group comprising 4-aminopyridine, anthraquinone, methiocarb and / or ziram. - -
  • the active compounds are agents for healing, alleviating or preventing human or animal diseases, preferably selected from the group consisting of acidotherapeutics, analeptics / antihypoxemics, analgesics / antirheumatics, anthelmintics, antiallergics, antianemics, antiarrhythmics, Anti-biotics / anti-infectives, anti-dementia drugs, antidiabetic drugs, antidotes, antiemetics / antivertiginosa, anti-nipple anti-hemoglobin anti-hypertensives. Antihvnoelvhimmika. Antihvnotonika.
  • the abovementioned substance classes cover the most common active ingredients used in human medicine, veterinary medicine and in over-the-counter (OTC) preparations and are accordingly the most in demand by the user. It is possible to have in the individual compartments of the molding according to the invention in each case active substances of the same substance class or else to use active substances from different classes in the individual compartments.
  • the filler is selected from the group consisting of minerals, preferably clay minerals and / or colloidal silicic acid, more preferably kaolin, kaolinite, halloysite, montmorillonite, talc, bentonite, vermiculite and / or allophane.
  • minerals in general include oxides, hydroxides, silicates, carbonates and sulfates of calcium, magnesium, aluminum and titanium.
  • Such minerals are chemically inert for use, inexpensive and available in large quantities. Their ability to store water makes it possible to use readily processable pastes for producing the shaped body according to the invention. In addition, these minerals are sufficiently low in abrasive so that processing tools and machines are not attacked.
  • the filler has a particle size whose d 90 value of the volume-weighted distribution is> 0.1 ⁇ m to ⁇ 1000 ⁇ m, preferably> 0.5 ⁇ m to ⁇ 500 ⁇ m, more preferably> 1 ⁇ m to ⁇ 50 microns.
  • particles of such sizes are readily processable in the production of the shaped article according to the invention, in that they can be flowed or pumped in the dry state as well as in the state in which they are pasted with lubricant.
  • volume-weighted distribution is that particle size, for which it holds that 90% of the particle volume of particles are less than or equal to the d 90 is formed.
  • Measurement methods for determining the volume-weighted distribution are listed, for example, in Terence Allen: Particle Size Measurement, Kluwer Academic Publishers, Dordrecht / Boston / London 1999. The presentation of the results is also mentioned in this reference or can also be done according to the standard DIN ISO 9276-1.
  • the matrix further comprises excipients selected from the group consisting of binders, synthetic macromolecules, anionic surfactants, nonionic surfactants, esters with lipid compounds, disintegrants, organic liquids and / or water.
  • binders have the function of keeping the individual components of the molding dimensionally stable and processable.
  • binders can be selected from the group comprising cellulose derivatives, microcrystalline cellulose, sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, lactose, starch (wheat, maize, potato, rice starch), starch derivatives, sucrose , Glucose, mannitol, sorbitol, dicalcium phosphate, tricalcium phosphate, bolus, zinc oxide, gelatin, maltodextrins, polysaccharides, oligosaccharides, stearic acid, calcium stearate, shellac, cellulose acetate phthalate and / or hydroxylmethylcellulose phthalate.
  • Examples of synthetic macromolecules may be selected from the group comprising copolymers of dimethylaminomethacrylic acid and neutral methacrylic acid esters, acrylic and methacrylic acid copolymers with trimethylammonium methyl acrylate, polymers of methacrylic acid and methacrylic acid esters, acrylic acid ethyl ester-methyl methacrylate copolymer, methyl acrylate-Acyrlklaremethylester, polyvinylpyrrolidone, polyvinylpyrrolidone Vinyl acetate and / or polyvinyl alcohols.
  • anionic surfactants may be selected from the group comprising soaps, salts of fatty acids, sodium palmitate, sodium stearate, sodium oleate, sodium salts of fatty alcohol sulfates, sulfoccinates, alkylnaphthalenesulfonates and / or alkyl sulfates. - o -
  • nonionic surfactants may be selected from the group comprising partial fatty acid esters of polyhydric alcohols, partial fatty acid esters of sorbitans, partial fatty acid esters of polyhydroxyethylene sorbitan, polyhydroxyethylene fatty alcohol ethers, polyhydroxyethylene fatty acid esters, ethylene oxide-propylene oxide block copolymers, ethoxylated triglycerides and / or silicone surfactants.
  • ester compound lipids may be selected from the group comprising glycerides, oils, hydrogenated oils, semi-synthetic and synthetic glycerides, solid and semi-solid waxes, liquid waxes and / or phosphatides.
  • disintegrating agents may be selected from the group consisting of water-soluble salts, crosslinked polyvinylpyrrolidone and / or mixtures of sugar, sodium bicarbonate and citric acid.
  • organic liquids may be selected from the group comprising silicone oils, glycerol, ethanol, isopropanol, propylene glycol and / or polypropylene glycols.
  • auxiliaries assist the rapid disintegration of the molding when introduced into water and the dispersing of water-insoluble active ingredients in a spray mixture, an ointment or a beverage.
  • the selection of these disintegrants dispenses with the need for disintegrants which cause the shaped body to disintegrate to form gas.
  • foaming is avoided in the container provided for the application of the spray mixture, ointment or beverage.
  • the shaped body comprises an inner compartment and an outer compartment, wherein the outer compartment at least partially encloses the inner compartment.
  • the shaped body is a coextrudate of at least two different compartments.
  • Co-extrudates can be produced on commercially available machines and can be obtained by selecting the extrusion conditions as granules with precisely defined dimensions. Uniform dimensions facilitate the flowability of the granules.
  • the liquid content of the ready-to-use molded article is> 0.1% by weight to ⁇ 50% by weight, preferably> 1% by weight to ⁇ 40 Wt .-%, particularly preferably> 5 wt .-% to ⁇ 25 wt .-%.
  • ready for sale here means that all production and treatment steps of the shaped body have been completed. Inventive moldings with these liquid contents prove themselves in handling. They are neither too dry, which can lead to breakage and dust formation during transport, storage or dosing.
  • the present invention likewise provides a process for the preparation of the shaped body described above, comprising the steps:
  • step f) combining the individual extrudates from step e) into an extrudate molding
  • the matrices after drying have a filler content of> 20 wt .-% to ⁇ 100 wt .-%.
  • the first active ingredient composition in step a) may be a mixture of different active substances or a single active substance. After step a), this can be used as a weighting for the first matrix. Ratio of> 0.01% by weight to ⁇ 99.99% by weight, preferably> 1% by weight to ⁇ 50% by weight, particularly preferably> 2% by weight to ⁇ 20% by weight exhibit. It is also possible that the mixer is part of the extruder or the extruder takes over the task of mixing in whole or in part.
  • the second active ingredient composition in step b) may be a mixture of different active substances or a single active substance. After step b), this can have a weight ratio of> 0.01% by weight to ⁇ 99.99% by weight, preferably> 1% by weight to ⁇ 50% by weight, particularly preferably> 2, relative to the second matrix 2 wt .-% to ⁇ 20 wt .-% have. It is also possible that the mixer is part of the extruder or the extruder takes over the task of mixing in whole or in part.
  • the added liquid in step c) may be either an organic liquid such as silicone oils, glycerol, ethanol, isopropanol, propylene glycol or polypropylene glycols, which may be water or mixtures of liquids. It may account for a proportion of the total weight of the preparation of> 5 wt .-% to ⁇ 60 wt .-%, preferably> 10 wt .-% to ⁇ 50 wt .-%, more preferably> 15 wt .-% to ⁇ 40 wt .-% exhibit.
  • the added liquid in step d) may be either an organic liquid such as silicone oils, glycerol, ethanol, isopropanol, propylene glycol or polypropylene glycols, which may be water or mixtures of liquids. It may account for a proportion of the total weight of the preparation of> 5 wt .-% to ⁇ 60 wt .-%, preferably> 10 wt .-% to ⁇ 50 wt .-%, more preferably> 15 wt .-% to ⁇ 40 wt .-% exhibit.
  • the spatially separate extrusion of the mixture of steps a) and c) on the one hand and the mixture of steps b) and d) on the other hand can be carried out in conventional extruders having a plurality of nozzle openings. It may be single-screw extruder. However, it can also be multi-screw extruders, for example twin-screw extruders.
  • the multi-screw extruders may have co-rotating or counter-rotating screws. These screws can be arranged parallel or conical to each other.
  • the screws can be constructed of conveying elements, mixing and / or kneading elements and elements for pressure build-up.
  • the second mixture may conveniently be conveyed by means of a positive displacement pump or by the action of the extruder.
  • the merging of the individual extrudates from step e) into an extrudate molding, as described in step f), serves to complete the molding.
  • the resulting extrudate molding is portioned.
  • open co-extrudates can be obtained either by means of a guillotine or rotary knife or closed by means of a pad cutter.
  • the pillow cutter squeezes the individual extrudate sections into pillows, the cover laying over the core at the crimping points. This gives closed co-extrudates.
  • the individual portions are still contiguous after portioning, for example with a pillow cutter. This is useful when the larger units are dried and should be divided later by breaking in the individual pillows.
  • the length of the portioned shaped body piece is expediently> 0.5 mm to ⁇ 80 mm, preferably> 1 mm to ⁇ 20 mm, particularly preferably> 2 mm to ⁇ 7 mm.
  • Granules of such dimensions have an advantageous surface area to volume ratio so that disintegration and redispersion in water can proceed rapidly.
  • the liquid content may in this case be> 0.1% by weight to ⁇ 50% by weight, preferably ⁇ 1% by weight to ⁇ 40% by weight, particularly preferably> 5% by weight to ⁇ 25% by weight. % to be brought.
  • the advantages of a liquid content in this range have already been described above.
  • the erf ⁇ ndungswashe method is characterized by the fact that the matrices after drying have a filler content of> 20 wt .-% to ⁇ 100 wt .-%.
  • the advantages of this procedure have already been described above.
  • the matrices after drying have a filler content of> 40 wt .-% to ⁇ 90 wt .-% or> 70 wt .-% to ⁇ 80 wt .-%.
  • the extrusion in step e) is carried out at a pressure of> 1 bar to ⁇ 300 bar, preferably> 2 bar to ⁇ 150 bar, more preferably> 8 bar to ⁇ 80 bar.
  • the pressure is understood here as absolute pressure, so that a pressure of 1 bar is considered to be depressurized.
  • the indication of the pressure refers to the pressure in the extruder at the nozzle, ie to the extrusion pressure.
  • step e) on the one hand, a hollow strand and, on the other hand, a core extrudate are formed and the combining in step f) is reversed.
  • step f) summarizes imports of the core into the hollow section.
  • core-shell extrudates can be produced.
  • the coextrusion and the imports are carried out in one device. It is expedient if the coextrusion and the merging take place in a die or a die head.
  • extruder nozzles can be used which produce a hollow strand.
  • the nozzle may be rotationally symmetric or otherwise shaped.
  • the profile of the Hohlstran ⁇ es for example, an outer diameter, measured at the strongest point, from> 1 mm to ⁇ 20 mm, preferably> 3 mm to ⁇ 10 mm, more preferably> 5 mm to ⁇ 7 mm.
  • the wall thickness of the hollow strand, measured at the strongest point can be in a range of> 0.5 mm to ⁇ 19 mm, preferably> 0.7 mm to ⁇ 10 mm, particularly preferably> 1 mm to ⁇ 2 mm.
  • the present invention furthermore relates to the use of shaped bodies according to the invention for the production of combination products for agrochemicals, compositions for healing, alleviating or averting diseases of humans or animals. For example, it is possible to produce granules with which the end user can safely and simply apply spray mixtures for treating agricultural land.
  • a test apparatus which consists of a cylindrical storage container (height: 70 mm, diameter: 135 mm) in which a sieve unit (height: 33 mm, diameter : 100 mm, mesh size: 200 ⁇ m) is arranged centrically.
  • a sieve unit height: 33 mm, diameter : 100 mm, mesh size: 200 ⁇ m
  • 600 ml of distilled water 600 ml was added into the feed tank as well as 6 g of granules in the screen unit.
  • Formulation 1 for a core-shell-coextrusion the following components were used:
  • Screw speed 300 revolutions / minute
  • the resulting moldings were dried in a drying oven at 50 ° C. under atmospheric pressure for 4 hours.
  • the redispersibility according to the test described above was carried out on moldings having a length of 2 mm, a diameter of the shell of 4 mm and a diameter of the - -
  • Nozzle pressure 39 bar Temperature: 32 0 C Screw speed: 300 revolutions / minute
  • the resulting molded articles were dried in a drying oven at 3O 0 C at atmospheric pressure for 8 hours.
  • the redispersibility according to the test described above was carried out on moldings having a length of 2 mm, a diameter of the casing of 4 mm and a diameter of the core of 2 mm. After less than 300 seconds, a plateau value of the conductivity was reached. A residue on the sieve was not detectable under optical control.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Agronomy & Crop Science (AREA)
  • Organic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un corps moulé contenant des principes actifs, comprenant au moins deux compartiments de compositions de matière différentes, chaque compartiment présentant indépendamment des autre au moins un principe actif, et le principe actif qui se trouve dans les compartiments individuels, étant contenu respectivement dans une matrice. La matrice respective comprend au moins une substance de charge, la teneur en susbtance de charge de la matrice valant de 20 à 100 % en poids du poids total de la matrice respective. L'invention concerne également un procédé pour produire un corps moulé de ce type et son utilisation.
EP07785939A 2006-07-21 2007-07-07 Formulations de granules pluri-compartimentées destinées à des principes actifs Withdrawn EP2046117A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033723A DE102006033723A1 (de) 2006-07-21 2006-07-21 Formulierungen von Multikompartimenten-Granulaten für Wirkstoffe
PCT/EP2007/006046 WO2008009361A2 (fr) 2006-07-21 2007-07-07 Formulations de granules pluri-compartimentées destinées à des principes actifs

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EP2046117A2 true EP2046117A2 (fr) 2009-04-15

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US (1) US20090317468A1 (fr)
EP (1) EP2046117A2 (fr)
CN (1) CN101489378A (fr)
DE (1) DE102006033723A1 (fr)
WO (1) WO2008009361A2 (fr)

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CN104542582A (zh) 2013-10-21 2015-04-29 Hicap制剂有限公司 除草剂的新型制剂
ITBO20130607A1 (it) * 2013-11-05 2015-05-06 Chemia S P A Formulato biostimolante, corroborante e concimante a base di zeolite ed estratti naturali vegetali
CN103688945A (zh) * 2013-12-10 2014-04-02 济南凯因生物科技有限公司 防治小麦白粉病的组合物
WO2015170217A1 (fr) 2014-05-05 2015-11-12 Sabic Global Technologies B.V. Engrais granulaires enrobés, procédés de fabrication de ceux-ci, et utilisations associées
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
WO2017137902A1 (fr) 2016-02-08 2017-08-17 Sabic Global Technologies B.V. Procédé de fabrication de noyau d'ensemencement d'engrais
CN110809569B (zh) 2017-04-19 2022-07-12 沙特基础工业全球技术公司 具有在同一颗粒内分开的尿素酶抑制剂和硝化抑制剂的增效肥料
AU2018255920B2 (en) 2017-04-19 2023-08-31 SABIC Agri-Nutrients Company Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
EP3612507A1 (fr) 2017-04-20 2020-02-26 SABIC Global Technologies B.V. Engrais à efficacité améliorée comportant une composition de poudre enrobée
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WO2008009361A3 (fr) 2008-03-27
WO2008009361A2 (fr) 2008-01-24
US20090317468A1 (en) 2009-12-24
CN101489378A (zh) 2009-07-22
DE102006033723A1 (de) 2008-01-24

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