WO2008122287A1 - Process for insecticidal impregnation of a fabric or netting or other kind of non-living material - Google Patents
Process for insecticidal impregnation of a fabric or netting or other kind of non-living material Download PDFInfo
- Publication number
- WO2008122287A1 WO2008122287A1 PCT/DK2007/000179 DK2007000179W WO2008122287A1 WO 2008122287 A1 WO2008122287 A1 WO 2008122287A1 DK 2007000179 W DK2007000179 W DK 2007000179W WO 2008122287 A1 WO2008122287 A1 WO 2008122287A1
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- WIPO (PCT)
- Prior art keywords
- insecticide
- solution
- process according
- water
- film forming
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/006—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with wool-protecting agents; with anti-moth agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/047—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with fluoropolymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
Definitions
- the present invention relates to a process - with reference to WO 01/37662 - for the impregnation of a non living material, for example a fabric or a netting, so as to impart insect killing and/or repellence properties.
- the process involves the preparation of a solution of an insecticide and a film forming component reducing wash off and degradation of the insecticide, wherein said film forming component comprises a polymeric backbone fixative polymerizing into a film with side chains of paraffin oils or waxes, silicons, silicon oils or waxes, polyfluorocarbons, or derivatives thereof.
- insects cause substantial problems as vectors and transmitters of infectious diseases affecting humans, and tremendous efforts are invested in controlling these insects. Efforts have been concentrated on controlling insects belonging to the order Diptera (covering mosquitoes, gnats, black flies, tsetse flies and other biting flies), Hemiptera (covering bed bugs) and Siphonaptera (covering fleas). Methods to control these insects include treating inner and outer surfaces of walls, air spraying, as well as impregnation of curtains and bednets. The impregnation of curtains and bed- nets has the advantage that the surface area to be treated is much reduced compared to a surface spraying of a house. The impregnation of the bednet reduces nuisance during sleeping and has been shown to be effective even if the net is slightly torn due to use.
- netting or fabric impregnated with a pyrethroid is partly based on the fast insecticidal property of these insecticides, but also on the repellent effect inherent in most of these insecticides.
- Tests have shown that an impregnated bednet reduces the number of mosquitoes entering the room with up till 75 %. Thereby, the net also provides some protection for other persons sleeping in the same room even they are not covered by the net.
- Large scale field experiments with nettings have shown that they may reduce malaria infection rate as measured directly or indirectly as gross children mortality. Accordingly, netting has been selected as a priority area for the campaign against malaria and other mosquito born diseases by WHO, the World Health Organization.
- KDR knock down resistance
- the general and world wide preferred material for bednets is cotton and polyester.
- Nets of polyester have been chosen by the WHO as the favourite material for bednets due to their better strength, their cotton like feeling and reduced flammability.
- nets of nylon are flammable, and polyethylene nets, like the Sumitomo® net with trade name Olyset®, are stiff.
- the Olyset® net is based on a monomer polyethylene fibre into which insecticide is incorporated during formation of the fibre. This method of incorporating the insecticide into the fibre is known not to be applicable for polyester fibres due to the high melting temperature of almost 200°C for polyester, which is destructive for the pyrethroids.
- WO 01/37662 by Skovmand discloses impregnated nettings or fabrics for insect or tick killing and/or repellent of an insect or tick comprising an insecticide, preferably a pyrethroid, and a film forming component reducing the wash off and degradation of the insecticide component from the netting or fabric by forming a water-resistant film.
- the film forming component comprises paraffin oil or wax derivatives, silicon derivatives, silicon oils or wax derivatives, and polyfluorocarbon derivatives in addition to a polymeric backbone fixative.
- the netting or fabric is impregnated by adding a solution or a water emulsion of an insecticide and/or repellent and a film forming component.
- the insecticide is dissolved in an organic solvent in the process for impregnation of a fabric or netting.
- composition and impregnaton method as disclosed in WO 01/37662 has been used as a basis recipe for the mosquito net with the trade name Permanet® by Vester- gaard Frandsen®.
- the wash resistance was revolutionary already, improvements of the production process were still necessary along the line.
- one of the problems to overcome has been the instability of the insecticide during the blending process.
- a high risk for crystallisation of the used insecticide, especially deltamethrin has been a limiting factor in the number of washes against which the nets were able to withstand before the level of insecticidal activity was below the widely used International threshold WHO standard.
- This object is achieved by a process for the impregnation of a fabric or a netting so as to impart insect killing and/or repellence properties, comprising:
- said film forming component comprises a polymeric backbone fixative and one or more components selected from paraffin oils or waxes, silicons, silicon oils or waxes, and polyfluorocarbons, or derivatives thereof, wherein
- the insecticide is dissolved in a solvent combined with alcohol or glycol, the alcohol or glycol has a water content of less than 5%, or ii) the insecticide is dissolved in a solvent and mixed with water or mixed with a water phase emulsion or solution having a temperature of less that 30°C, optionally, the solvent being combined with alcohol or glycol before the mixing, or i) and ii).
- the water content of less than 5% is an important factor that has been found by trial and error, as there has not been found any indication in the prior art, that this level has to be reduced during for increase of the number of wash cycles. Typically, in the current processes, a water content of 3% or less is used.
- the precipitation of the insecticide is dependent on the type of insecticide and the temperature.
- the temperature water phase emulsion or solution is advantageously below 24°C and even more preferably below 20°C. The best results have been obtained at temperatures around 17°C.
- mosquito nets are produced in tropical countries in production buildings without air condition having a temperature of more than 30 0 C.
- active cooling of the liquid has to occur.
- additional cooling is afterwards required to lower the temperature below the temperature of the environment.
- the film forming component comprises a mixture of components selected from paraffin oils or waxes, silicons, and silicon oils or waxes, and polyfluorocarbon or derivatives thereof, preferably a mixture of a polyfluorocarbon and paraffmic oil or a mixture of a polyfluoroalkyl and a polysiloxan.
- the silicon oil or wax is a polysiloxan.
- the polyfluorocarbon, paraffin oil or wax, silicon, silicon oil or wax, or derivatives thereof is/are attached to the polymeric backbone.
- the polymeric backbone fixative is a resin, polyurethane or polyacryl.
- the film forming component comprises a polymeric backbone fixative polymerizing into a film with polyfluorocarbon side chains on the polymeric backbone in a drying process or in a curing process or in a drying and curing process of the non living material.
- the combined solution or emulsion, where the insecticide composition is incorporated in the wash resistant agent before application to the non-living material may be used as a composition for impregnation or as part of a composition for impregnation, in as much as it may be mixed with other components.
- Such components may be other insecticides, synergists, UV protecting agents, preservatives, detergents, fillers, impact modifiers, anti-fogging agents, blowing agents, clarifiers, nucleating agents, coupling agents, conductivity-enhancing agents to prevent static electricity, stabilizers, for example, anti-oxidants, carbon and oxygen radical scavengers and peroxide decomposing agents and the like, flame retardants, mould release agents, optical brighteners, spreading agents, antiblocking agents, anti-migrating agents, foam-forming agents, anti-soiling agents, thickeners, further biocides, wetting agents, plasticizers adhesive or anti-adhesive agents, fragrance, pigments and dyestuffs and other liquids including water or organic solvents.
- the impregnating composition may also be partly absorbed in an absorptive fabric, which may prolong the insecticidal activity and improve the wash resistance.
- insecticide may be trapped between the filaments, leading to a higher wash resistance of this trapped insecticide.
- the method according to the invention is applicable for hand dipping, however, it has proved to be especially suitable for industrial production.
- the protective composition according to the invention relates to a single component or a mixture of components giving water or water and oil resistance.
- One or several de- tergents may be added to increase wettability of the agent to the fabric, to stabilise emulsions used, or to increase fixation.
- a cross-linking agent or a catalyser may be used to increase fixation.
- the pesticidal composition and the protective composition may be added successively (process a) or in one process (process b).
- An improved finish and curing may be obtained by finally passing a heated surface, for example, an iron or a heated roller or heating with hot air.
- polymeric backbone is discussed in more detail in WO 01/37662, the content of which is incorporated herein in its entirety by reference.
- the insecticide is a pyrethroid, preferably deltamethrin or permethrin, but other pyrethroids may apply as well, as disclosed as a list in WO 01/37662.
- the invention applies as well in connection with cabamates or organophosphates in the composition for impregnation.
- a more extensive list of possible insecticide is found in WO 01/37662 or in WO 06/128870 also containing examples of repellents.
- insecticide applies as well to insecticide combinations in the composition for impregnation according to the invention.
- a pyrethroid may be combined with carbamates or organophosphates in order to combat resistant insects as well.
- two or more insecticides may be applied on various parts of the net or fabric and not mixed and used homogeneously, which can be beneficially with respect to toxicological and registration reasons.
- the alternative or supplemental insecticide may also be an insecticide with a sterilising effect for sterilising the mosquitoes and avoid the next generation of mosquitoes.
- Such insecticides can, optionally, be of the benzoyl urea group or triazins.
- a phenylsemicarbazone compound preferably metaflumizone, as disclosed in international patent applications WO07/017518, WO07/017502 assigned to BASF and WO 06/127407 assigned to Wyeth,
- insecticides may be combined with synergists, for example piperonyl butoxide, Sulfoxide, Tropital, Bucarpolate, ethion, profenofos, or di- methoate.
- synergists for example piperonyl butoxide, Sulfoxide, Tropital, Bucarpolate, ethion, profenofos, or di- methoate.
- non-living material in the context of the invention, a textile material or plastics material selected from the group consisting of yarn, fibers, fabric, knit-goods, nonwovens, netting material, foils, tarpaulins and coating compositions.
- the netting material may be prepared by any method known in the art, for example by circular knitting or warp knitting, or by sewing parts of a netting to obtain the desired nettings.
- the textile material or plastics material may be made form a variety of natural and synthetic fibers, also as textile blends in woven or non-woven form, as knit goods, yarns or fibers. Natural fibers are for example cotton, wool, silk, jute or hamp.
- Synthetic fibers are for example polyamides, polyesters, polyacryl ni- triles, polyolefmes, for example polypropylene or polyethylene, Teflon, and mixtures of fibers, for example mixtures of synthetic and natural fibers.
- non-textile substrates for example, coating compositions, leathers, synthetic adaptions of leather, flocked fabrics, sheetings, foils and packaging material:
- textile material or plastics material includes bedclothes, mattresses, pillows, duvets, cushions, curtains, wall coverings, carpeting and window, cupboard and door screens, geotextiles, tents, inner soles of shoes, garments, for example, socks, trousers, shirts, uniforms, horse blankets, bed nets, covering in agriculture and viniculture; fabrics or nettings for packages, wrapping sacks; containers for food, seeds and feed; paper; construction materials, furniture, leathers, vinyl articles, electric wires and cables.
- nettings made from polyester because polyester nettings have cotton like feeling and low flammability. These are also reasons, why these netting are preferred by the WHO.
- the invention is one em- bodiment is directed towards application in connection with a 75, 100 or 150 denier 36 filament deltamethrin impregnated polyester netting like Permanet 2.0.
- the insecticide is dissolved in a proper solvent, for example acetone, hexane, heptane, ligroin and petroleum ether; aromatic hydrocarbon solvents, for example, benzene, toluene and xylene; halogenated hydrocarbon solvents, for example, chloroform, carbon tetrachloride, dichloroethane, chlorobenzene and dichlorobenzene; ether solvents, for example, diethyl ether, diisopropyl ether, dioxane, tetrahydrofuran and ethylene glycol dimethyl ether; ester solvents, for example, ethyl acetate and butyl acetate; nitro compounds, for example, nitroethane and Nitrobenzene; dimethylfor- mamide; and mixtures thereof.
- a proper solvent for example acetone, hexane, heptane, ligroin and petroleum ether
- aromatic hydrocarbon solvents for
- the aim of the invention is to control and/or to combat a variety of pests, for example ticks, cockroaches, bed bugs, mites, fleas, lice, leeches, houseflies, mosquitoes, termites, ants, moths, spiders, grasshoppers, crickets, silverfish, and other flying and crawling insects.
- pests for example ticks, cockroaches, bed bugs, mites, fleas, lice, leeches, houseflies, mosquitoes, termites, ants, moths, spiders, grasshoppers, crickets, silverfish, and other flying and crawling insects.
- the applying of the insecticidal impregnation composition may be performed by padding, dip washing, spraying, printing techniques, for example transfer printing or analogous to inkjet printing.
- the curing process may be performed by padding, dip washing, spraying, printing techniques, for example transfer printing or analogous to inkjet printing.
- a drying process is performed followed by a curing process at elevated temperatures relative to the temperature of the environment.
- the drying and curing process is performed in one step simultaneously.
- the time and temperature for the curing process depends on the non-living material and on the insecticide.
- At the same elevated temperature for example 120 0 C, some insecticides disintegrate easier and faster than others.
- deltamethrin disintegrates rather fast at higher temperatures or changes into R-isomers, for example at temperatures of HO 0 C or higher, and should not be exposed to high temperatures for a substantial time.
- impregnation composition during the drying process is exposed to heated rollers of much larger temperature, for example 170 0 C or even higher temperature, for example 180 0 C or even 200°C, as long as the temperature of the composition itself does not achieve that temperature for a substantially long time.
- evaporation of the fluid may keep the temperature low enough to prevent substantial disintegration or sublimation of the insecticide.
- deltamethrin has been found to stay largely intact, if the curing temperature is between 70 and 90 0 C, rather within the open range between 70°C and 90°C, such as 71 0 C -89°C, preferably between 75°C and 85 0 C, more preferably between 75°C and 80°C and most preferably in the rather narrow interval between 75 0 C and 79°C.
- typical curing time intervals were in the range of 5 seconds to 2 minutes. However, there seems to occur some further curing at room temperature thereafter. However, as long as the net is not dried, a slightly higher drying temperature of 90 0 C is applicable, followed by a curing process in the above mentioned range.
- impregnated fabrics or nets are produces in tropical countries, where the temperature is high enough to achieve a fast drying of the impregnation composition. However, it is preferred to dry the material at elevated temperature. Experimentally, it has been found that a drying process at 7O 0 C to 90 0 C, rather around 90 0 C, is suitable for a high production speed. Furthermore, a better adhesion of the binder is found than by drying at low temperature, for example at 30°C. Typical drying times have been between 5 seconds and 2 minutes in successful experiments.
- FIG. 1 is a simplified illustration of a water repellant polymeric backbone
- FIG. 2 illustrates the inclusion of insecticide in the backbone
- FIG. 3 illustrates a backbone with insecticide before alignment.
- Drawn texturised polyester fibre yarn (DTY) is delivered in rolls from a supplier, where the fibres consist of 36 polyester filaments.
- the delivered fibres are knitted into continuous nets and stretched in order achieve the correct dimension followed by a heat setting process at various temperatures between 170°C and 225 0 C, where the net is stretched simultaneously to make the net more stable and more stiff.
- the solution of the insecticide is mixed with alcohol or glycol (ethyl-alcohol, propylenglycol, etc.) and the fabric or netting passes through a bath with the insecticidal liquid, or the insecticidal liquid is applied to the fabric or netting by spraying, printing or other techniques.
- the fabric or netting passes two rollers or a roller against a fixed surface to squeeze off as much as possible of the fluid.
- the concentration of the pyrethroid in the solution is calculated on the amount of solution remaining in the fabric or on the netting after this process.
- the fabric or netting is then dried, e.g.
- the fabric and especially the netting may be kept fixed under this process not to change shape.
- the temperature used in the drying process must be below 220 0 C, and preferably below 100°C in the composition itself.
- the fabric or netting pass a second bath, spray station, printing station, or the like, where a solution or emulsion of the wash resistant agent is added.
- a cross binding or a catalysing agent may be added. This emulsion with polyfluorocarbon forms a continuous film during evaporation of the water.
- the solution of the insecticide is mixed with alcohol or glycol (ethyl-alcohol, propylenglycol, etc.). This mixture is then mixed under stirring with an organic solution or a water emulsion of the wash protective agent, optionally with the addition of catalytic or cross binding agent and an acidifier.
- Detergents may be added to stabilise the organic solution of the pesticide in the water emulsion and to ease wetting.
- the fabric or netting may pass a press, e.g. comprising two rollers, to reduce the amount of composition absorbed. Alternatively, surplus composition may be removed by centrifuging.
- the fabric or netting is finally dried, as described above, or dried by passing a warm surface, for example over a warm roller.
- the fabric may be partly or totally air dried, e.g. under vacuum, and then passed between one or two heated rollers or a roller and a heated surface.
- the temperature during the drying process has to be chosen such that the insecticide is not decomposed.
- This final drying at elevated process also serves to accelerate the orientation of the molecules of the wash protective agent to form a homogenous wash repellent film. This process is often named as the "curing".
- deltamethrin is dissolved/dispersed in acetone and ethanol, where the ethanol has a water content of less than 5% and is used as a stabiliser, for example between 5% and 3%, around 3% or lower than 3%, for example between 3% and 1%, or even lower than 1%.
- the film forming component is dissolved/dispersed in hot water together with a stabi- liser/emulsifler, where also an acidifier is used.
- the hot mixture is cooled to below 20°C, rather to approximately 17°C or below 17°C, before the deltamethrin solution/emulsion is mixed into the cooled mixture.
- the final mixture with the insecticide and the film forming agent is applied to the net by padding, where the net run over rollers at a controlled speed.
- the initial pick up weigh is selected so that after drying, the final deltamethrin content is 55mg/m 2 net.
- FIG. 1 a simplified sketch is shown of a polymeric backbone on a fibre.
- the backbone has side chains with polyfluorocarbons which, as a film with a high number of such backbone polymer chains, acts as a water repellent and, optionally oil repellent coating.
- insecticide may be trapped between these side chains. This implies that the insecticide is protected from water or oil on the surface as long as the insecticide in within the backbone. In this connection, it is important that the insecticide is trapped releasably between the side chains. Li other words, the insecticide should have a mobility such that it can migrate to the surface of the film, out of the backbone in order for uptake by insects. The migration may be at least partly governed by a gradient of insecticide concentration, but active migration promoters or inhibitors may be applied as well in order to find the optimal migration speed, such that a sufficiently high dose of insecticide is on the outer surface of the fibre over a " prolonged period.
- the side chains of the polymeric backbone are misaligned, as illustrated in FIG. 3, some of the insecticide may be trapped into too close structures with a reduced migration speed as a result. Other side chains may form a too open structure, which does not lead to sufficient protection against water and oil. The curing process is believed to realign the side chains such that optimal conditions are achieved.
- deltamethrin has been used, normally, and, deltamethrin has been found to stay largely intact, if the curing temperature is between 70°C and 90°C, rather within the open range between 70 0 C and 90 0 C, for example 71 0 C -89°C, preferably between 75°C and 85°C, more preferably between 75 0 C and 80 0 C and most preferably in the rather narrow interval between 75°C and 79 0 C.
- typical curing time intervals were in the range of 5 seconds to 2 minutes. However, there seems to occur some further curing at room temperature thereafter.
- - deltamethrin is dissolved or dispersed in acetone combined with ethanol, the ethanol has a water content of less than 5%
- the deltamethrin solution or dispersion may be mixed with water with a temperature of less than 30°C,
- the film forming component is dissolved or dispersed in water
- the deltamethrin solution is stirred into the water solution or dispersion, optionally having a temperature of less than 30°C, to form the impregnation liquid,
- - deltamethrin is dissolved or dispersed in acetone combined with ethanol, optionally the ethanol has a content of less than 5% water,
- the deltamethrin solution or dispersion may be mixed with water of less than 30°C,
- the film forming component is dissolved or dispersed in water
- the deltamethrin solution is stirred into the water solution or dispersion of less than 30° C to form the impregnation liquid,
- glykol has a content of less than 5% water
- the pyrethroid or carbamate solution or dispersion may be mixed with water of a temperature less than 30°C,
- the fabric is treated with the pyrethroid or carbamate solution or dispersion,
- the fabric is dried
- the film forming component is dissolved or dispersed in water - and a fabric or netting is treated with water solution or dispersion of the film forming component and dried or cured at elevated temperature, wherein the film forming component solution or dispersion is applied after the application of the pyrethroid or carbamate solution or dispersion.
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- Agronomy & Crop Science (AREA)
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Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780052528.1A CN101677533B (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
JP2010502417A JP2010523603A (en) | 2007-04-10 | 2007-04-10 | Insecticide impregnation method for cloth or net or other types of non-biological materials |
PCT/DK2007/000179 WO2008122287A1 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
AP2009005003A AP2009005003A0 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
KR1020097023269A KR20100016318A (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
EP07722558A EP2141987A1 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
BRPI0721564-9A BRPI0721564A2 (en) | 2007-04-10 | 2007-04-10 | a process for impregnating non-living material, for example a tissue or mesh to impart extermination and / or insect repellent properties |
MX2009010831A MX2009010831A (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material. |
US12/450,751 US20100119720A1 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
TW097112698A TW200904325A (en) | 2007-04-10 | 2008-04-08 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DK2007/000179 WO2008122287A1 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008122287A1 true WO2008122287A1 (en) | 2008-10-16 |
WO2008122287A8 WO2008122287A8 (en) | 2009-11-19 |
Family
ID=38792027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2007/000179 WO2008122287A1 (en) | 2007-04-10 | 2007-04-10 | Process for insecticidal impregnation of a fabric or netting or other kind of non-living material |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100119720A1 (en) |
EP (1) | EP2141987A1 (en) |
JP (1) | JP2010523603A (en) |
KR (1) | KR20100016318A (en) |
CN (1) | CN101677533B (en) |
AP (1) | AP2009005003A0 (en) |
BR (1) | BRPI0721564A2 (en) |
MX (1) | MX2009010831A (en) |
TW (1) | TW200904325A (en) |
WO (1) | WO2008122287A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010072724A2 (en) | 2008-12-23 | 2010-07-01 | Basf Se | Process and aqueous formulation for the impregnation of non-living-materials imparting a protective activity against pests |
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WO2014202876A1 (en) | 2013-06-20 | 2014-12-24 | Long Lasting Innovation | Chemical composition incorporating molecules active against insects and active system comprising a support treated with such a chemical composition |
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WO2018073161A1 (en) | 2016-10-17 | 2018-04-26 | Syngenta Participations Ag | Mosquito vector control compositions, methods and products utilizing same |
WO2018185243A1 (en) | 2017-04-05 | 2018-10-11 | Syngenta Participations Ag | Compounds and compositions having knock-down or blood feed inhibition activity against insect pests |
WO2019081575A1 (en) | 2017-10-27 | 2019-05-02 | Syngenta Participations Ag | Vector control compositions, methods and products utilizing same |
WO2023222724A1 (en) | 2022-05-16 | 2023-11-23 | Syngenta Crop Protection Ag | Method for mosquito control |
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MX2015002531A (en) * | 2012-09-20 | 2015-06-05 | Bayer Cropscience Ag | Use of biocides as flame retardants. |
US8785549B2 (en) | 2012-10-05 | 2014-07-22 | S.C. Johnson & Son, Inc. | Composition for sealing a colorant to a surface and/or for protecting a surface |
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JP7465087B2 (en) * | 2018-12-28 | 2024-04-10 | 花王株式会社 | Pest repellent composition |
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- 2007-04-10 JP JP2010502417A patent/JP2010523603A/en active Pending
- 2007-04-10 BR BRPI0721564-9A patent/BRPI0721564A2/en not_active IP Right Cessation
- 2007-04-10 WO PCT/DK2007/000179 patent/WO2008122287A1/en active Application Filing
- 2007-04-10 CN CN200780052528.1A patent/CN101677533B/en active Active
- 2007-04-10 KR KR1020097023269A patent/KR20100016318A/en not_active Application Discontinuation
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WO2001037662A1 (en) * | 1999-11-25 | 2001-05-31 | Dct Aps | Composition for impregnation of fabrics and nettings |
WO2006128870A2 (en) * | 2005-06-03 | 2006-12-07 | Basf Aktiengesellschaft | Composition for the impregnation of fibers, fabrics and nettings imparting a protective activity against pests |
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WO2010072724A2 (en) | 2008-12-23 | 2010-07-01 | Basf Se | Process and aqueous formulation for the impregnation of non-living-materials imparting a protective activity against pests |
AP3473A (en) * | 2008-12-23 | 2015-12-31 | Basf Se | Process and aqueous formulation for the impregnation of non-living-materials imparting protective activity against pests |
WO2010072724A3 (en) * | 2008-12-23 | 2011-04-28 | Basf Se | Process and aqueous formulation for the impregnation of non-living-materials imparting a protective activity against pests |
CN102325444A (en) * | 2008-12-23 | 2012-01-18 | 巴斯夫欧洲公司 | Be used to flood non-active material to give active method and the aqueous formulations of protection of opposing insect |
JP2012523439A (en) * | 2009-04-14 | 2012-10-04 | ベステルガールド フランドセン ソシエテ アノニム | Mosquito net containing dinotefuran and PBO for killing pyrethroid resistant mosquitoes in particular |
CN102740691B (en) * | 2009-04-14 | 2014-11-12 | 韦斯特高凡德森有限公司 | Mosquito net with dinotefuran and PBO for killing mosquitoes, especially mosquitoes with pyrethroid resistance |
WO2010118743A1 (en) * | 2009-04-14 | 2010-10-21 | Vestergaard Frandsen Sa | Mosquito net with dinotefuran and pbo for killing mosquitoes, especially mosquitoes with pyrethroid resistance |
WO2012164080A1 (en) | 2011-06-03 | 2012-12-06 | Intelligent Insect Control | Insecticidal polyethylene fiber, yarn or textile products with improved migration profiles and washing resistance |
WO2014202876A1 (en) | 2013-06-20 | 2014-12-24 | Long Lasting Innovation | Chemical composition incorporating molecules active against insects and active system comprising a support treated with such a chemical composition |
WO2017060389A1 (en) | 2015-10-06 | 2017-04-13 | Syngenta Participations Ag | Compounds and compositions having knock-down or blood feed inhibition activity against insect pests |
EP3659438A1 (en) | 2015-10-06 | 2020-06-03 | Syngenta Participations Ag | Compounds and compositions having knock-down or blood feed inhibition activity against insect pests |
WO2018073161A1 (en) | 2016-10-17 | 2018-04-26 | Syngenta Participations Ag | Mosquito vector control compositions, methods and products utilizing same |
WO2018185243A1 (en) | 2017-04-05 | 2018-10-11 | Syngenta Participations Ag | Compounds and compositions having knock-down or blood feed inhibition activity against insect pests |
EP4289271A2 (en) | 2017-04-05 | 2023-12-13 | Syngenta Participations Ag | Method and polymeric material having knock-down or blood feed inhibition activity against mosquitoes |
WO2019081575A1 (en) | 2017-10-27 | 2019-05-02 | Syngenta Participations Ag | Vector control compositions, methods and products utilizing same |
WO2023222724A1 (en) | 2022-05-16 | 2023-11-23 | Syngenta Crop Protection Ag | Method for mosquito control |
Also Published As
Publication number | Publication date |
---|---|
WO2008122287A8 (en) | 2009-11-19 |
MX2009010831A (en) | 2009-12-14 |
EP2141987A1 (en) | 2010-01-13 |
TW200904325A (en) | 2009-02-01 |
AP2009005003A0 (en) | 2009-10-31 |
CN101677533B (en) | 2014-06-18 |
JP2010523603A (en) | 2010-07-15 |
KR20100016318A (en) | 2010-02-12 |
US20100119720A1 (en) | 2010-05-13 |
BRPI0721564A2 (en) | 2013-01-15 |
CN101677533A (en) | 2010-03-24 |
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