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
  • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• • 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
  • A01N25/02—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 liquids as carriers, diluents or solvents
  • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
• • 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
  • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof

Definitions

• the present invention relates to new pesticide formulations and their preparation process.
• the subject of the invention is pesticide formulations in the form of pastes containing:
• the formulations of the invention are in the form of a thick paste having the property of being effervescent and having a microporous structure which gives it a very good dispersion in water.
• This paste can be present inside a water-soluble plastic bag, in extruded granules or in pla ⁇ quettes. The last two presentations requiring a drying operation.
• This paste is a composition which has a very low coefficient of viscoelasticity, it is not a colloidal solution like a gel, but results from absorption by a solid, of a liquid until saturation, the particle size of the solid particles being between 5 and 40 ⁇ :
• the active material is in solution in a low volatile solvent and the emulsifiers contained in this solvent allow the preparation to release the active principle in the form of an emulsion after its dilution in water.
• the formulations of the invention have a microporous structure facilitating their dispersion in water at the time of their use. This structure is obtained by provoking a gaseous release within the dough at the time of its preparation. The gas is released by the reaction of the micropore generator and the effervescent agent.
• One of the advantages of the invention is to present formulations such as concentrated suspensions or usually liquid emulsifiable concentrates, under the form a solid or a paste.
• Another advantage is thus to avoid any risk of accidental spillage during storage, transport or handling of the product.
• Another advantage is to avoid loss of products on the walls of the packaging at the time of use.
• Another advantage is, in the case where the dough is contained in a water-soluble sachet, to provide a product whose packaging remaining after use contains no trace of active principle and whose loss in the event of opening or accidental tear is zero unlike a liquid or gel.
• the active ingredient is a liquid or solid pesticide, soluble or insoluble in water. It can be an insecticide, a miticide, a fungicide or a growth regulator.
• a mixture of citric acid and an alkali or alkaline earth carbonate or hydrogen carbonate can be used, for example a sodium or potassium carbonate or a calcium carbonate or a sodium hydrogen carbonate; other acids than citric acid can be used, for example ascorbic acid or adipic acid.
• a glycol which reacts slowly with the effervescent agent and causes a release of carbon dioxide within the paste it is preferably monopropylene glycol.
• a more particular subject of the invention is pesticide formulations containing from 0 to 20% of effervescent agents, or alternatively formulations containing from 30 to 50% of effervescent agents.
• the subject of the invention is in particular the formulations which also contain 3 to 10% of wetting agents or also the formulations which also contain 20 to 40% of wetting agents.
• the wetting agent can be a sodium salt of aliphatic acid or a lignosulfonate.
• the subject of the invention is in particular the formulations closing between 5 and 40% of mineral filler or organic filler which can optionally be substituted for the wetting agent.
• the mineral fillers must have sufficient absorbency to retain the liquid constituents of the formulation without desorption; these are preferably silicas, for example silica of the aerosil or zeosil type or else clays such as argirec, vercoryl, or else aluminous, potassium or anhydrous sodium silicates or finally sodium borate.
• silicas for example silica of the aerosil or zeosil type or else clays such as argirec, vercoryl, or else aluminous, potassium or anhydrous sodium silicates or finally sodium borate.
• the organic fillers can, for example, be chosen from celluloses, starch or corn derivatives, urea, lactose and sugars, polyvinylpyrolidone.
• a more particular subject of the invention is the pesticide formulations further comprising between
• the solvent used is very important to the success of the invention, it should be a good solvent of the active material, it may be for example an aromatic solvent such as Solvesso 200 ® or isoparaffinic solvent such than Isopar V ® . They can also be ketone solvents such as isophorone, acetophenone or cyclohexanone combined with different co-solvents such as n-butyl acetate, arcosolv PMA (methoxy propanol acetate), butyl - benzoate or diethylphthalate.
• the anti-foaming product can for example be
• Rhodorsil ® The surfactants and stabilizers can be, for example, those used in the experimental part or those known to be equivalent to them.
• a subject of the invention is very particularly the formulations characterized in that the effervescent agent is a mixture of citric acid and sodium carbonate, the formulations characterized in that the micropore-generating agent is a glycol.
• the active material is a fungicidal, herbicidal, insecticidal pesticide and more particularly for insecticides a pyrethroid selected from the group of the following products: deltamethrin, Cyperethrin, Alphamethrin, Tralomethrin, Cyalothrin, Fenvalerate, Cyfluthrine, Flucythrenate, Fluvalinate, Fenpropathrin, Tefluthrin, Bifenthrin, Acrinathrin, Betacyfluthrin, Taufluvalinate lambdacyalothrin and esfenvalerate.
• the invention particularly relates to formulations in which the pyrethroid is delta ⁇ methrin, for example those containing from 1 to 15% of delta-methrin.
• the subject of the invention is also a process of prepa ⁇ ration, characterized in that a highly flexible concentrate containing the active principle is prepared, poured onto the mixture of solid fillers and kneaded together to obtain a homogeneous paste.
• the active material is preformulated in the form of an emulsifiable concentrate or also in the form of a suspension concentrated in oil.
• the formulations according to the invention are introduced into water-soluble sachets, which are then crimped and packaged in an overpack ensuring the protection of the sachets.
• the invention therefore also relates to the formulations as defined above packaged in a soluble sachet.
• This sachet can in particular consist of a multilayer or monolayer water-soluble PVA film or of a double-layer laminated film. These include such films NEDI ® EF 300 or EP 300.
• composition of the dough between 2 and 10% of dehydrating agent such as sulphate of sodium, calcium chloride, maleic anhydride or even water-capturing solvents such as cyclohexanone or acetophenone for example.
• dehydrating agent such as sulphate of sodium, calcium chloride, maleic anhydride or even water-capturing solvents such as cyclohexanone or acetophenone for example.
• the formulations thus obtained have good stability and good biological activity.
• the pastes of the invention diluted in water giving an elasticity are preferably used in agriculture, in the treatment of crops or in the treatment of animals or in public and domestic hygiene.
• the areas of use are those of the raw materials used.
• compositions of the invention are prepared as follows:
• Solid loads must have a particle size of less than 15 ⁇ . If not, they will have to be micronized. They are then mixed in a Lôdige type device.
• Emulsifiable concentrate of deltamethrin 34.5% EXAMPLE 2: a paste corresponding to the formulation anhydrous sodium carbonate 12.0% was prepared
• the pastes of Examples 1 and 2 can be packaged in water-soluble PVA sachets. Aluminum exterior packaging coated with PVC can protect these sachets.
• EXAMPLE 3 Granules containing 5% of deltamethrin were prepared containing
• Emulsifiable concentration of deltamethrin 34.5% EXAMPLE 4: granules of formula anhydrous sodium carbonate 12.0% were prepared
• Emulsifiable concentration of deltamethrin 34.5% EXAMPLE 5 5% platelets or lozenges were prepared deltamethrin of formula
• Emulsifiable concentrate of deltamethrin 34.5% By operating as indicated above, the following formulations were prepared:
• Example 18 The preparation of Example 18 is packaged in sachets of PVA, Nedi EF.210 film.
• Example 19 The preparation of Example 19 is packaged in sachets of PVA, Nedi EF AK film.
• the insecticidal activity of the formulations of the invention was studied on Rhopalosiphum padi (wingless females at the first and second larval stage), the host plant being tea (stage 2 f. Florence-Aurora variety).
• the formulations of the invention are as effective as the formulation commer ⁇ cial Decis ® EC 25 g / 1. The formulations therefore have excellent activity.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Plant Pathology (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• Pest Control & Pesticides (AREA)
• Agronomy & Crop Science (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Toxicology (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Priority Applications (9)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Cited By (1)

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Citations (9)

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• 1994
  • 1994-04-14 FR FR9404440A patent/FR2718610B1/fr not_active Expired - Fee Related
• 1995
  • 1995-04-06 ZA ZA952845A patent/ZA952845B/xx unknown
  • 1995-04-12 AU AU23473/95A patent/AU679372B2/en not_active Ceased
  • 1995-04-12 EP EP95917381A patent/EP0755184B1/fr not_active Expired - Lifetime
  • 1995-04-12 DK DK95917381T patent/DK0755184T3/da active
  • 1995-04-12 PL PL95316787A patent/PL316787A1/xx unknown
  • 1995-04-12 HU HU9602804A patent/HUT75258A/hu unknown
  • 1995-04-12 CA CA002187672A patent/CA2187672A1/fr not_active Abandoned
  • 1995-04-12 AT AT95917381T patent/ATE169450T1/de not_active IP Right Cessation
  • 1995-04-12 KR KR1019960705739A patent/KR970701991A/ko not_active Withdrawn
  • 1995-04-12 JP JP7526761A patent/JPH09512001A/ja not_active Abandoned
  • 1995-04-12 CN CN95192567A patent/CN1146135A/zh active Pending
  • 1995-04-12 US US08/718,431 patent/US5945113A/en not_active Expired - Fee Related
  • 1995-04-12 DE DE69504050T patent/DE69504050T2/de not_active Expired - Fee Related
  • 1995-04-12 WO PCT/FR1995/000471 patent/WO1995028082A1/fr not_active Ceased
  • 1995-04-12 BR BR9507383A patent/BR9507383A/pt not_active Application Discontinuation
  • 1995-04-12 ES ES95917381T patent/ES2121378T3/es not_active Expired - Lifetime
  • 1995-06-05 TW TW084105601A patent/TW312610B/zh active

Patent Citations (9)

Non-Patent Citations (4)

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