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EP4452581A1 - Zusammensetzung mit mindestens einem isoalkan, mindestens einem celluloseether, mindestens einem pflanzenextrakt und einer mischung aus alkoxysilan und disiloxan - Google Patents

Zusammensetzung mit mindestens einem isoalkan, mindestens einem celluloseether, mindestens einem pflanzenextrakt und einer mischung aus alkoxysilan und disiloxan

Info

Publication number
EP4452581A1
EP4452581A1 EP22847601.6A EP22847601A EP4452581A1 EP 4452581 A1 EP4452581 A1 EP 4452581A1 EP 22847601 A EP22847601 A EP 22847601A EP 4452581 A1 EP4452581 A1 EP 4452581A1
Authority
EP
European Patent Office
Prior art keywords
composition
weight
extract
composition according
wood
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.)
Pending
Application number
EP22847601.6A
Other languages
English (en)
French (fr)
Inventor
Daouia Messaoudi
Olivier Fahy
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.)
Berkem Developpement
Original Assignee
Berkem Developpement
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 Berkem Developpement filed Critical Berkem Developpement
Publication of EP4452581A1 publication Critical patent/EP4452581A1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P3/00—Fungicides
    • 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P7/00—Arthropodicides
    • A01P7/04—Insecticides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/50—Mixtures of different organic impregnating agents

Definitions

  • composition comprising at least one isoalkane, at least one cellulose ether, at least one plant extract and a mixture of alkoxysilane and disiloxane
  • the present invention relates to the field of pest control and wood protection and relates more particularly to biosourced formulations, comprising pesticide products in the form of a plant extract, stable and having a good diffusion index and penetration into the treated material. It relates more particularly to a composition comprising at least one isoalkane, at least one cellulose ether, at least one plant extract and a mixture of alkoxysilane and disiloxane.
  • wood As a natural material, even in the dry state, wood is susceptible to biological degradation, in particular by microorganisms such as wood rot fungi and xylophagous insects. To achieve adequate performance and durability of wood, it must be protected from pest attack. Protection against biological degradation is traditionally obtained by impregnating the wood with pesticides. However, the penetration of solutions into wood is a complex and largely unknown process.
  • EU European regulation
  • the content of pesticidal substance must be reduced as much as possible in the composition, and the adjuvants used in combination with the pesticidal substance must not be toxic synthetic chemicals.
  • the composition must in particular aim at the eradication of insects without being harmful for humans, for non-target organisms or the environment.
  • biosourced formulations comprising pesticide products in the form of plant extracts, which are stable and have a good diffusion and penetration index in the treated material.
  • the inventors have advantageously developed formulations having a bio-based carbon content greater than 99%, with a high power of diffusion in the wood material (refractory, impregnable) and a high resistance to biological agents in the wood (fungi , insects, termites).
  • the present invention relates to a pesticidal composition
  • a pesticidal composition comprising at least one isoalkane, at least one cellulose ether, at least one plant extract, and a mixture of alkoxysilane and disiloxane.
  • the inventors have advantageously demonstrated that the gel formulations according to the invention are suitable vectors allowing better stability and penetration of plant extracts as pesticidal agents.
  • the present invention relates to a process for the curative and/or preventive treatment of wood protection or wood pest control by means of a composition according to the invention, said process comprising the step consisting in applying said composition to the wood to be treated and/or to a surface.
  • the present invention relates to a method for combating pests by means of a composition according to the invention, said method comprising the step consisting in applying said composition to the surface to be treated.
  • the present invention relates to a pesticidal composition
  • a pesticidal composition comprising at least one isoalkane, at least one cellulose ether, at least one plant extract and a mixture of alkoxysilane and disiloxane.
  • the isoalkane is a biobased isoalkane.
  • Bio-based means when a product is partially or totally bio-based. The measurement of a bio-based product is carried out thanks to a measurement by Carbon 14.
  • C8-C18 isoalkanes also called isoparaffins
  • C11-C12 isoalkane the C11-C13 isoalkane
  • C15-C18 isoalkane the C15-C16 isoalkane
  • C17-C18 isoalkane C17-C18 isoalkane or mixtures thereof.
  • renewable iso-alkanes from the Biolife range of Total Energy can be used.
  • the composition comprises 5 to 90% by weight, relative to the total weight of the composition, of an isoalkane.
  • the composition comprises between 10 to 90% by weight, relative to the total weight of the composition, of an isoalkane.
  • the composition comprises between 10 to 80% by weight, relative to the total weight of the composition, of an isoalkane.
  • the composition comprises between 10 to 70% by weight, relative to the total weight of the composition, of an isoalkane.
  • the composition comprises between 10 to 40% by weight, relative to the total weight of the composition, of an isoalkane.
  • cellulose ethers mention will be made of methylcellulose, ethylcellulose, hydroxyethylcellulose, modified hydroxyethylcellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose and carboxymethyl cellulose.
  • the cellulose ether is chosen from hydroxyethylcellulose or modified hydroxyethylcellulose.
  • the hydroxyethylcellulose is NatrosolTM 250HRTM, marketed by the company Ashland
  • the modified hydroxyethylcellulose is NatrosolTM PLUS 330 PA, marketed by the company Ahsland.
  • the composition comprises a content of less than or equal to 5%, preferably less than or equal to 3%, preferably less than or equal to 2% by weight, relative to the total weight of the composition, of a cellulose ether.
  • the composition comprises a cellulose ether content of between 0.5 and 5% by weight, relative to the total weight of the composition, preferably between 0.5 and 2% by weight.
  • the composition comprises a mixture of silane and siloxane, preferably alkoxysilane and disiloxane.
  • the products of the SILRES® BS range, from Wacker Chemie AG, can be used.
  • the mixture of silane and siloxane makes it possible to stabilize the pesticide composition and to integrate one or more plant extracts. It also and advantageously protects the plant extract from washing out.
  • the composition comprises 10 to 50% by weight, relative to the total weight of the composition, of a mixture of alkoxysilane and disiloxane.
  • the plant extract according to the present invention is a plant extract having a pesticidal effect.
  • plant extract having a pesticidal effect means any plant extract, consisting of one or more active substances, which is intended to destroy, repel or render harmless harmful organisms, to prevent their action or to combat them in any other way, by an action other than a simple physical or mechanical action.
  • the plant extract comprises one or more polyphenols as active substance.
  • the plant extract comprises one or more phenolic compounds as active substance.
  • polyphenol or “phenolic compound”, is meant any molecule possessing several (ie at least two) phenol functions.
  • the polyphenol(s) can be chosen from the group consisting of flavonoids, phenolic acids and their glycosides, hydroxybenzoic acids and their glycosides, procyanidolic oligomers and their mixtures.
  • flavonoids any molecules all sharing the same basic structure formed by two aromatic rings connected by three carbons: C6-C3-C6, chain often closed in a hexa- or pentagonal oxygenated heterocycle.
  • the flavonoids can be monomeric flavonoids, such as flavones, flavanols, flavonones, flavan-4-ol, flavan-3-ol (i.e. flavanols or catechins) such as catechin or epicatechin .
  • the phenolic acids include in particular hydroxybenzoic acids such as gallic acid, and hydroxycinnamic acids such as caffeic acid, ferulic acid, paracoumaric acid.
  • the procyanidolic oligomers are combinations of monomer flavonoids, generally ranging from dimer (2 monomer units) to decamer (10 monomer units).
  • the OPCs can be catechin and/or epicatechin oligomers, dimer or trimer procyanidols.
  • a distinction can be made in particular between the proanthocyanidols of the B series (1 C4-C8 and C4-C6 interflavanic bond and 2 ether bonds per dimer) and the proanthocyanidols of the A series (1 interflavanic bond and 3 ether bonds per dimer).
  • the plant extract preferably has a total content by weight of polyphenol of at least 30% by weight, at least 50% by weight, at least 70%, or at least 90% , relative to the total weight of the plant extract.
  • the plant extract has a total content by weight of polyphenols of between 30 and 99% by weight, between 30% and 50% by weight, between 50 and 99%, relative to the total weight of the plant extract.
  • harmful organism means any organism whose presence is not desired or which produces a harmful effect for humans, their activities or the products they use or produce, for animals or 'environment.
  • harmful insects Among the harmful organisms, mention will be made of harmful insects, xylophagous insects, fungi, xylophagous fungi.
  • Wood pests are understood to mean xylophagous insects and xylophagous fungi.
  • the harmful insects are chosen from cockroaches or cockroaches such as the German cockroach or Blatella germanica, the oriental cockroach or Blatta orientalis, the American or Periplaneta americana, the brown-banded cockroach or Supella longipalpa, ants such as the black garden ant or Lasius niger, the carpenter ant, the red ant or the red ant, the pharaoh ant (Monomorium pharaonis), the garden ant Argentina, fleas or ctenocephalides, bed bugs such as Cimex lectularius, Cimex lectularius (resistant), wood bugs or Palomena prasina, woodlouse (Porcellio scaber), silverfish or silverfish (Lepisma saccharina) the flour beetle (Tribolium confusum), lesser mealworm (Alphitobius spp), yellow mealworm (Tenebrio molitor), carpet
  • Xylophagous insects feed on wood and can attack any type of wood, furniture, floors, beams, frames. Their presence can jeopardize the structural elements of a dwelling. Their action reduces the resistance of the wood which becomes friable and is no longer able to fulfill its role. These pests have managed to develop an adaptability to their environment and are able to survive in dry wood.
  • Reticultitermes spp the lucifuge termite (Reticulitermes lucifugus), the Saintonge termite (Reticulitermes santonensis or Reticulitermes flavipes),) the yellow-necked termite (Kalotermes flavicollis)
  • Coptotermes spp Prorhinotermes spp, Cryptotermes spp, Heterotermes spp, Nasusitermes spp, Macrotermes spp; Odontermes spp; Schedorhinotermes spp; Microtermes spp, Microcerotermes spp, Allodontermes spp, longhorn beetles such as Hylotrupes bajulus, hymenoptera such as the hoverfly, wood wasp and carpenter bee, carpenter ants, beetles such as the small beetle, the large bee
  • the xylophagous insects are beetles such as Hylotrupes bajulus.
  • fungi During their fruiting, fungi emit considerable quantities of spores into the atmosphere. When a spore comes into contact with an exploitable substrate (e.g. wood), it emits a filament which penetrates a ligneous cell, then ends up colonizing the whole room by multiplying. Some filaments can pass through plaster and soft stones, and damage the structure of the frame. There are 3 categories of fungi depending on the nature of the damage caused:
  • the wood thus degraded generally has a more or less significant cubic segmentation and is brown in color.
  • These include dry rot and its rhizomorphs (Serpula Lacrymans), cave coniophore (Coniophora Puteana), Poria Vaporaria, Poria Spez, oak lenzite, Gloeophyllum Trabeum and Rhodonia placenta.
  • the composition comprises a plant extract content of less than or equal to
  • the biocide is chosen from Vitis vinifera L, Pinus pinaster, Arachis hypogaea, Corylus avellanna, Arnica montana and Origanum vulgare.
  • the plant extracts mentioned above advantageously comprise polyphenols as detailed in the present application.
  • the grape extract according to the present invention belongs to the genus Vitis and is preferably an extract of the species Vitis vinifera L.
  • the grape extract can be obtained from buds, flowers, fruits, leaves, seeds, skin, roots, pips.
  • the grape extract is obtained from the seeds.
  • the grape extract is obtained from the seeds of the species Vitis vinifera L...
  • the procyanidolic oligomers of grape seeds consist of oligomers and polymers of catechin and epicatechin.
  • the content of procyanidolic oligomers is greater than or equal to 30% by weight, relative to the total weight of the plant extract.
  • the content of procyanidolic oligomers is greater than or equal to 90%% by weight, relative to the total weight of the plant extract, preferably greater than or equal to 92%% by weight, relative to the weight total plant extract, preferably greater than or equal to 95% and even more preferably, the content of oligo-proanthocyanidins (OPC) is greater than or equal to greater than 99%% by weight, relative to the total weight of the plant extract.
  • OPC oligo-proanthocyanidins
  • OPCs in grape seeds are very complex.
  • the interflavanic bonding mode involves the C4-C8 or C4-C6 carbon and is characteristic of B-series oligomers.
  • the sum of the monomeric flavanols is between 18 and 32% of the extract, and that of the dimer flavanols is between 30 and 40%.
  • the sum of the monomeric flavanols is between 5 and 7% of the extract, and that of the dimer flavanols is between 5 and 7%.
  • the content of catechin monomer is less than 5% and the content of dimer proanthocyanidins B1 is less than 8%.
  • the grape extract is made from dried grape seeds of the Vitis vinifera L species, freed from the pulp and unfermented and is obtained by a succession of extraction steps. , purification and drying.
  • the extract may be obtained by any technique known to those skilled in the art.
  • the main constituents of the grape extract according to the invention are quantified by high performance liquid chromatography in reverse phase with detection by ultraviolet absorption.
  • the pine extract according to the present invention belongs to the Pinus genus and may be a maritime pine or Austin pine (Pinus pinaster) or a Scots pine (Pinus sylvestris).
  • the extract is an extract of the species Pinus pinaster.
  • pine extract can be obtained from needles, buds, bark or resin.
  • the pine extract is obtained from the bark of Pinus pinaster.
  • the main polyphenols in maritime pine bark belong to the following phytochemical classes:
  • procyanidolic oligomers catechin, dimer procyanidols, trimers etc
  • the pine bark extract according to the invention is rich in procyanidolic oligomers
  • the level of procyanidolic oligomers is greater than or equal to 30% of the extract.
  • the sum of catechin and procyanidol dimer B3 should not be less than 17%.
  • Phenolic acids, hydroxy cinnamic acids and taxifoliol are present in very small quantities, not exceeding 3%.
  • the main constituents of the maritime pine bark extract according to the invention are quantified by high performance liquid chromatography in reverse phase with detection by ultraviolet absorption.
  • the pine bark extract is made from dried and ground maritime pine bark, followed by an initial solid/liquid extraction with water, then a recovery of the aqueous phase by filtration. Purification is carried out by selective liquid/liquid extraction and drying.
  • the peanut extract according to the present invention belongs to the genus Arachis.
  • the extract is an extract of the species Arachis hypogaea.L.
  • the extract of Arachis hypogaea.L. can be obtained from the peel or skin of the peanut.
  • the content of procyanidolic oligomers is greater than or equal to 30% by weight, relative to the total weight of the plant extract.
  • the flavonoids or procyanidolic oligomers which are the major constituents of the phenolic compounds of the peanut skin have a basic structure of the 2-phenylchroman type.
  • OPCs are mainly composed of oligomers belonging to the A series (1 interflavanic bond and 3 ether bonds per dimer).
  • the B series oligomers (1 C4-C8 or C4-C6 interflavanic bond and 2 ether bonds per dimer) are present but in small quantities.
  • the peanut extract is obtained from dry peanut shells which are treated either at room temperature or hot with solvents such as water, organic solvents such as ethanol, acetone, a water/organic solvent mixture in variable proportions.
  • the liquid extract obtained is concentrated by appropriate means (evaporation under reduced pressure) to reduce and/or eliminate the organic solvents.
  • concentration residue undergoes enrichment operations in phenolic compounds of interest.
  • a purification step by liquid/liquid extraction is carried out, followed by a drying step.
  • Hazel extract (Corylus avellanna) CAS No. 84012-21-5
  • the hazelnut extract according to the present invention belongs to the genus Corylus and is preferably an extract of the species Corylus avellanna.
  • hazelnut extract can be obtained from the leaves, fruits (hazelnuts), bark, catkins or inflorescences.
  • the hazel extract is obtained from the leaves.
  • the hazelnut extract is obtained from the leaves of the species Corylus avellanna.
  • the hazelnut extract is made from the leaves of the Corylus avellanna species and is obtained by a succession of extraction, filtration, purification and drying steps, known from the skilled person.
  • Arnica extract (Arnica montana) CAS No. 68990-11-4
  • the arnica extract according to the present invention belongs to the Arnica genus and is preferably an extract of the Arnica montana species.
  • arnica extract can be obtained from the flower, leaves, stems, roots and seeds.
  • the arnica extract is obtained from the flowers.
  • the arnica extract is obtained from the flowers of the species Arnica montan a.
  • the arnica extract is made from the flowers of the species Arnica montana and is obtained by a succession of steps of extraction, filtration, purification and drying, known of the skilled person.
  • the content of sesquiterpene lactone esters is preferably less than 1%, and preferably less than 0.2% of the extract.
  • This constituent can be quantified by any method known to those skilled in the art, and for example, by high performance liquid chromatography in reverse phase with detection by ultraviolet absorption.
  • Oregano extract (Origanum vulgare)
  • the oregano extract according to the present invention belongs to the genus Origanum and is preferably an extract of the species Origanum vulgare.
  • the oregano extract can be obtained from the dried leaves, or the flowering tops.
  • the oregano extract is obtained from the leaves.
  • the oregano extract is obtained from the leaves of the species Origanum vulgar.
  • the oregano extract is made from the leaves of the species Origanum vulgar and is obtained by a succession of steps of extraction, filtration, purification and drying, known of the skilled person.
  • the composition comprises a plant extract content of less than 10% by weight relative to the total weight of the composition, between 10 to 40% by weight relative to the total weight of the composition of an isoalkane, between 0.5 and 2% by weight relative to the total weight of the composition of a cellulose ether and between 10 to 50% by weight, relative to the total weight of the composition, of a mixture of alkoxysilane and disiloxane.
  • the composition comprises a plant extract content of approximately 2% by weight relative to the total weight of the composition, between 10 to 40% by weight, relative to the total weight of the composition of an isoalkane, between 0.5 and 2% by weight relative to the total weight of the composition of a cellulose ether and between 10 to 50% by weight, relative to the total weight of the composition, of a mixture alkoxysilane and disiloxane [0119]
  • Composition in the form of a gel between 10 to 40% by weight, relative to the total weight of the composition of an isoalkane, between 0.5 and 2% by weight relative to the total weight of the composition of a cellulose ether and between 10 to 50% by weight, relative to the total weight of the composition, of a mixture alkoxysilane and disiloxane
  • compositions according to the invention are in gel form.
  • gel within the meaning of the present application, a composition whose viscosity is between 50,0000 cP and 2,400,000 cP, preferably between 700,0000 cP and 2,400,000 cP at room temperature.
  • the viscosity can be measured by any viscometer and by any method known to those skilled in the art.
  • the viscosity of the composition can be measured by any analogue Brookfield viscometer.
  • the viscosity was measured at ambient temperature, with an analogue Brookfield viscometer, with a rotor 6, at a speed of 0.3 rpm.
  • the viscosity measurement is carried out on the sample remaining at room temperature.
  • the biocidal composition according to the invention is in the form of an aqueous gel.
  • the aqueous phase according to the invention comprises water and optionally any hydrophilic solvent such as, for example, linear or branched lower mono-alcohols having from 1 to 8 carbon atoms, such as ethanol, propanol, butanol, isopropanol, isobutanol; polyols such as propylene glycol, isoprene glycol, butylene glycol, propylene glycol, glycerol, sorbitol, polyethylene glycol and derivatives thereof, and mixtures thereof.
  • any hydrophilic solvent such as, for example, linear or branched lower mono-alcohols having from 1 to 8 carbon atoms, such as ethanol, propanol, butanol, isopropanol, isobutanol; polyols such as propylene glycol, isoprene glycol, butylene glycol, propylene glycol, glycerol, sorbitol, polyethylene glycol and derivatives thereof, and mixture
  • the composition according to the invention may also comprise at least one additional agent chosen from nonionic surfactants, antifoams, anionic surfactants, water-soluble polymers, chelating agents, acids, preservatives, waxes, waxy emulsions, cationic surfactants, pesticides, plant extracts, antioxidants, luminescent agents, anti-UV additives, tagging agents, biosourced co-solvents such as those from Augeo® range marketed by Solvay and those of the Isane Biolife® range marketed by Total Energys.
  • additional agent chosen from nonionic surfactants, antifoams, anionic surfactants, water-soluble polymers, chelating agents, acids, preservatives, waxes, waxy emulsions, cationic surfactants, pesticides, plant extracts, antioxidants, luminescent agents, anti-UV additives, tagging agents, biosourced co-solvents such as those from Augeo® range marketed by Solvay and those of
  • nonionic surfactants mention will be made of ethoxylated alcohols, ethoxylated oils, alkylpolyglucosides, ethoxylated ammoniums, low-foaming nonionic surfactants, polyalkylene glycols, block copolymers.
  • anionic surfactants mention will be made of fatty alcohol ether sulphates, fatty alcohol sulphates and linear alkyl benzene sulphonates.
  • water-soluble polymers mention will be made of dispersing agents and thickeners.
  • EDTA ethylenediaminetetraacetic acid
  • GLDA N,N-dicarboxymethylglutamic acid
  • DTPA diethylenetriaminepentaacetic acid
  • HEDTA (2-hydroxyethyl) ethylene diamine triacetic acid
  • NTA nitrilotriacetic acid
  • PDTA propylene diamine tetra acetic acid
  • EDG ethanol glycine
  • Bronopol formic acid, glutaraldehyde, glyoxal, n-propanol, phenoxyethanol, dichlorohydroxydiphenylether (DCPP).
  • DCPP dichlorohydroxydiphenylether
  • cellulose ethers mention will be made of methylcellulose, ethylcellulose, hydroxyethylcellulose, modified hydroxyethylcellulose, hydroxypropyl cellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose and carboxymethylcellulose
  • insecticides and fungicides.
  • insecticides mention will be made of thiacloprid, cypermethrin, permethrin, diflubenzuron, bifenthrin, deltamethrin, imiprothrin, D-allethrin, Piperonyl Butoxide, Geraniol, d-tetramethine, an extract pepper, esbiothrin, prallethrin, chlorfenapyr, cyanamide, chrysantheum and their mixture, microorganisms.
  • fungicides of the triazole family such as propiconazole, tebuconazole, cyproconazole, 3-iodo-2-propynylbutylcarbamate (IPBC), penfluflen, fenpropimorph, quaternary ammoniums and quaternary ammonium salts, such as alkyldimethylbenzylammonium chloride (ADBAC, BKC), tetramethylammonium cation (TMAC), N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine (diamine), propionate of N,N-Didecyl-N-methyl-poly(oxyethyl) ammonium (Bardap26), didecyldimethylammonium chloride (DDAC) and their mixture, microorganisms.
  • DDAC didecyldimethylammonium chloride
  • the present invention relates to a process for the curative and/or preventive treatment of wood protection or wood pest control, by means of a pesticide composition according to the invention, said process comprising the step consisting in applying said composition to the wood to be treated and/or to a surface.
  • preventive treatment is meant any treatment making it possible to prevent healthy wood from being infected by wood degradation agents such as harmful wood organisms (xylophagous insects and xylophagous fungi).
  • Preventive treatment includes temporary treatment of logs, treatment of fresh sawn timber, anti-blueing treatment in service, treatment according to wood use classes in Europe and according to hazard classes in other areas of the world (USA, Australia , etc.), the processing of structural panels. In the use classes, a distinction is made between the uses of wood indoors and outdoors (above ground, in the ground).
  • an insecticidal or fungicidal barrier can be used to isolate wood pests from gaining access to the building containing wood. We then speak of wood pest control. This system is usually installed between the ground and the construction to keep wood pests out and eliminate those that come into contact with the insecticide or fungicide. This preventive treatment concerns new and existing constructions (residential, industrial or agricultural).
  • Curative treatment is understood to mean any treatment aimed at destroying or rendering harmless the harmful insects of wood, or at least at improving the condition. Curative treatment means, for example, the treatment of an infestation of wood pests such as termites and includes the destruction of these pests or at least the cessation of development or the regression of the infestation. This curative treatment concerns the wood used but also the existing constructions.
  • wood or wood product means any wood or material based on or comprising wood.
  • wood from sawmills, including during the transformation phase in the sawmill, logs, frameworks, beams, building materials, furniture, cladding, materials based on fiberglass wood, OSB (“oriented strand board”), plywood, interior joists, a terrace, outdoor facilities, stakes and retaining earth, parquet, interior coverings made from wood material.
  • OSB oriented strand board
  • the present invention relates to a method for the preventive treatment of constructions by means of a biocidal composition according to the invention, said method comprising the step consisting in applying said composition to a surface.
  • the application will be carried out by brushing on the composition in the form of a gel.
  • composition according to the invention may be integrated into an anti-pest trap or a connected object.
  • the present invention relates to a method for controlling pests by means of a pesticidal composition according to the invention, said method comprising the step consisting in applying said composition to the surface to be treated.
  • the application will be carried out by brushing on the composition in the form of a gel.
  • pests here means all pests other than wood pests.
  • method for combating pests means curative and preventive methods.
  • the surface to be treated is understood broadly and applies, in the case of an insecticidal or fungicidal composition, to any surface comprising at least one harmful organism.
  • the surface is also understood broadly and applies to any surface on which harmful insects are likely to be present, namely the surface of a floor, the surface furniture, a material, a worktop, a window frame, but also the surface of the skin of a human being or an animal, the surface of a textile, the surface of linens, ...
  • the pest control process includes agricultural use (treatment of crops, foodstuffs (storage, transport), harvests and non-agricultural use.
  • the surfaces can also be crops, crops, foodstuffs, gardens, etc.
  • Example 1 Comparison of the effectiveness of a liquid formulation comprising a plant extract vs. a gel formulation according to the invention comprising the same plant extract
  • the Hylotrupes bajulus larvae are introduced into the test specimens. After a period intended to allow the installation of the larvae in the test specimens, these test specimens are treated by painting or by application with a pipette of the protective product under test. After the delay defined according to the speed of action of the wood preservative, the mortality of the larvae is estimated in comparison with that of the larvae of the untreated control specimens.
  • the larvae are obtained using the Hylotrupes bajulus (Linnaeus) rearing method described in Appendix B of standard NF EN 1390/2006.
  • the reference species is Scots pine (Pinus sylvestris Linnaeus).
  • larvae, products and reagents, apparatus, test specimens, operating mode, test duration are those described in standard NF EN 1390/2006.
  • the results are expressed as the average percentage of mortality in the treated test specimens and in the untreated control specimens.
  • a sustained release formulation was used in this example.
  • the formulation comprises 2% by weight relative to the total weight of the composition of an extract of hazelnut or arnica, between 10 to 40% by weight relative to the total weight of the composition of an isoalkane , between 0.5 and 2% by weight relative to the total weight of the composition of a cellulose ether and between 10 to 50% by weight relative to the total weight of the composition of a silane/siloxane mixture.
  • Average amount of arnica extract applied to each test specimen approximately 300 ml/m 2
  • the arnica extract according to the invention makes it possible to eradicate the larvae of Hylotrupes bajulus, and this, compared to the control.
  • the morality rate is 98.3%.
  • Hazel extract Method of treatment application with a brush
  • the hazelnut extract according to the invention makes it possible to eradicate the larvae of Hylotrupes bajulus, and this, compared to the control.
  • the mortality rate is 100%.
  • Average amount of arnica extract applied to each test specimen approximately 300 ml/m 2 .
  • the arnica extract was formulated in propylene glycol.
  • the gel formulation is therefore much more effective than the liquid formulation.
  • the gel formulation is therefore much more effective than the liquid formulation.
  • compositions according to the invention are studied qualitatively and quantitatively. Briefly, a composition according to the invention is applied to a test specimen.
  • a visual check after 7 days of the diffusion of the composition is carried out by lateral cutting of the test specimens 8 cm from one end. This control makes it possible to determine whether the composition diffuses within the test specimen after its application.
  • a quantitative analysis is carried out at 21 days. This analysis makes it possible to determine the concentration of biocidal substance (insecticide and/or fungicide) within a test specimen sample at 1 cm, 2 cm or 3 cm from the application surface.
  • Test specimens with a dimension of 48 ⁇ 2° ⁇ 5 cm are produced. [0193] Treatment of one side by spraying
  • biocidal active substances fungicide, insecticide.
  • 400-450 g of formulation in gel form is applied per m 2 of wood surface to one side of the test specimen.
  • the quantities are indicated in mg of biocidal substance per 100 g of test specimen taken.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Environmental Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Agronomy & Crop Science (AREA)
  • Dentistry (AREA)
  • Toxicology (AREA)
  • Forests & Forestry (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP22847601.6A 2021-12-22 2022-12-20 Zusammensetzung mit mindestens einem isoalkan, mindestens einem celluloseether, mindestens einem pflanzenextrakt und einer mischung aus alkoxysilan und disiloxan Pending EP4452581A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2114262A FR3130509B1 (fr) 2021-12-22 2021-12-22 composition comprenant au moins un iso-alcane, au moins un éther de cellulose, au moins un extrait de plante et un mélange d’alkoxysilane et de disiloxane
PCT/FR2022/052453 WO2023118742A1 (fr) 2021-12-22 2022-12-20 Composition comprenant au moins un iso-alcane, au moins un éther de cellulose, au moins un extrait de plante et un mélange d'alkoxysilane et de disiloxane

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Publication Number Publication Date
EP4452581A1 true EP4452581A1 (de) 2024-10-30

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EP22847601.6A Pending EP4452581A1 (de) 2021-12-22 2022-12-20 Zusammensetzung mit mindestens einem isoalkan, mindestens einem celluloseether, mindestens einem pflanzenextrakt und einer mischung aus alkoxysilan und disiloxan

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EP (1) EP4452581A1 (de)
FR (1) FR3130509B1 (de)
WO (1) WO2023118742A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005751A (en) * 1959-02-03 1961-10-24 Phillips Petroleum Co Combatting wood-boring insects with insecticides dispersed in isoparaffinic hydrocarbons
DE19744612A1 (de) * 1997-10-09 1999-04-15 Wacker Chemie Gmbh Emulsionen von Organosiliciumverbindungen für die Hydrophobierung von Baustoffen
US8221797B2 (en) * 2007-02-09 2012-07-17 Osmose, Inc. Wood preserving composition for treatment of in-service poles, posts, piling, cross-ties and other wooded structures
KR20180091925A (ko) * 2015-12-23 2018-08-16 시우 파르그컬쳐 아베 코팅 조성물 및 처리 방법
US20200068882A1 (en) * 2018-09-05 2020-03-05 Biljana Milankovic D'Amico Termite repellent and word protector
PL242303B1 (pl) * 2019-07-19 2023-02-06 Univ Przyrodniczy W Poznaniu Środek do konserwacji drewnianych obiektów zabytkowych i sposób jego wytwarzania

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FR3130509A1 (fr) 2023-06-23
FR3130509B1 (fr) 2024-07-19

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