Pest control composition contained in plastic containers
By using an aqueous pest control composition containing sodium lauryl sulfate and plant essential oils in a transparent plastic container, the problem of phase separation under temperature changes in existing products has been solved, achieving stability and effective pest control of the composition.
Patent Information
- Application Number
- CN202480048962.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-10
- Filing Date
- 2024-08-07
- Publication Date
- 2026-02-24
AI Technical Summary
Existing pest control products are prone to phase separation or instability at different temperature ranges, especially in transparent glass containers, where it is difficult to maintain clarity, transparency, and phase stability.
A water-based pest control composition containing sodium lauryl sulfate, plant essential oils, and isopropanol is used. When stored in a transparent plastic container, especially a container made of polyethylene terephthalate (PET), the composition is kept stable over a wide temperature range.
This achieves clarity, transparency, and phase stability of the pest control composition across the entire temperature range, avoids phase separation, and provides a lasting odor experience and effective pest control.
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Abstract
Description
Technical Field
[0001] This disclosure relates to improved pest control compositions and aerosol pest control products comprising pest control compositions contained in plastic containers. Background Technology
[0002] The market for pest control products (such as weed control products and arthropod pest control products) is growing, and consumer demand for pest control products containing natural ingredients, fewer ingredients, and / or identifiable ingredients is also increasing. However, there is still a desire for these products to have efficacy comparable to traditional chemical pest control or insecticide products, effectively controlling pests (such as weeds and arthropods).
[0003] Existing pest control products and compositions contain natural ingredients such as plant essential oils. Some of these existing products have several drawbacks: some may be messy to use and / or leave residues on treated surfaces; some may be unstable or separate into multiple phases at low temperatures (i.e., approximately 5°C to 10°C) and require vigorous shaking before use; and some have limited efficacy. Other products fail to provide an optimal odor experience, such as emitting a persistent, unpleasant odor. Some consumers prefer clear products to cloudy or turbid (i.e., higher turbidity) products. Recently, effective pest control products comprising clear, aqueous pest control compositions containing plant essential oils have been introduced. In particular, effective aerosol pest control products comprising clear, aqueous pest control compositions stored in pressurized containers have been introduced. Pressurized containers, well-known in the art, are made of metal to withstand the internal pressure of aerosol products. Transparent pressurized containers may be desirable for storing clear, water-based pest control compositions because the transparency showcases the composition's clarity and aesthetic appeal, which may indicate purity. The most widely available transparent pressurized containers are made of glass or certain types of plastic.
[0004] However, it has been found that maintaining the transparency of clear aqueous pest control compositions across the entire temperature range and in different types of transparent containers can be challenging. For example, some compositions may appear clear and single-phase at 25°C, but may separate into multiple phases or become cloudy when exposed to elevated temperatures (e.g., 40°C) and / or decreased temperatures (e.g., 5°C), particularly when stored in glass containers. Therefore, there remains a need for aerosol pest control products that contain single-phase clear aqueous pest control compositions stored in transparent pressurized containers, where the compositions maintain transparency and phase stability over a wide temperature range. Summary of the Invention
[0005] This disclosure relates to an aerosol pest control product comprising: a. a spray dispenser connected to a pressurized plastic container having an internal gauge pressure of about 414 kPa to about 1,100 kPa; b. a pest control composition contained in the plastic container and comprising: i. about 1% to about 15% sodium lauryl sulfate by weight of the composition; ii. about 0.005% to about 15% by weight of the composition of an active ingredient selected from the group consisting of: corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, etc. The composition comprises: iii. thyme oil, lemongrass oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, geranium oil, lemongrass oil, eugenol, geraniol, nerol, vanillin, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-isopropyltoluene, linalool, eucalyptol / 1,8-cineole, α-pinene, borneol acetate, γ-terpinene, and mixtures thereof; iii. a first solvent comprising about 0.1% to about 45% by weight of the composition, wherein the first solvent is isopropanol; and iv. water comprising about 45% to about 99% by weight of the composition; and v. a propellant. Detailed Implementation
[0006] It has been found that some aqueous pest control compositions containing certain natural active ingredients and high concentrations of water are unstable over a wide temperature range when stored in glass containers. "Stable" can refer to a pest control composition that is substantially clear and exhibits no phase separation or precipitation, meaning that the composition does not require stirring or mixing before application. Surprisingly, the same composition is unstable (especially at elevated temperatures) when stored in glass containers. Generally, improved stability is expected in glass containers. However, surprisingly, the same aqueous pest control compositions are stable over the entire temperature range when stored in transparent plastic containers, particularly those made of polyethylene terephthalate (“PET”).
[0007] The compositions disclosed herein may comprise, consist of, or be composed of the essential components described herein, as well as optional ingredients. As used herein, “consistent with” means that a composition or component may contain additional ingredients, provided that the additional ingredients do not substantially alter the essential and novel characteristics of the composition or method protected by the claims.
[0008] Pest Control Combination
[0009] The pest control products disclosed herein comprise compositions, preferably liquid compositions, more preferably aqueous liquid compositions, which can be contained in plastic containers. As used herein, “pest control” means the management of pest species, including any animals such as insects and other arthropods, plants, or fungi that have an adverse impact on human activities or the environment, wherein management includes controlling, killing, eliminating, repelling, or attracting pest species. The terms “pest control” and “insecticide” are used interchangeably, and it should be understood that compositions or ingredients having “biocidal” activity (e.g., insecticides, insecticides, herbicides, fungicides) may or may not kill and / or eliminate target pests, such as arthropods, insects, weeds, or fungi. As used herein, “biocidal agent” and “biocide” include compositions, compounds, components, ingredients, materials, etc., that effectively kill, remove, destroy, defoliate, eliminate, eradicate, or eliminate target pests, etc., and that delay, regulate, inhibit, or prevent the survival, growth, and / or reproduction of such pests, etc.
[0010] Pest control products and compositions may include products and compositions for managing pest species inside and outside buildings, such as residential or commercial premises, including but not limited to areas such as garages, patios, balconies, corridors, lawns, and / or gardens. Pest control products and compositions may include products and compositions for use on and / or on patios, lawns, shrubs, trees, and / or outdoor plants, as well as for use on or around indoor plants. Pest control products and compositions may include selective and non-selective products and compositions, such as selective and non-selective herbicides, fungicides, and insecticides. Pest control products and compositions may also include products and compositions for topical application to humans to control or repel pest species, such as insects and other arthropods.
[0011] The pest control compositions disclosed herein may contain fewer than about 15 ingredients, preferably fewer than about 10 ingredients, more preferably fewer than about 15 ingredients and more than about 5 ingredients.
[0012] The pest control compositions disclosed herein may contain renewable components. The compositions disclosed herein may contain renewable components ranging from about 1%, or from about 5%, or from about 10%, or from about 20%, or from about 30%, or from about 40%, or from about 50%, to about 40%, or to about 50%, or to about 60%, or to about 70%, or to about 80%, or to about 90%, or to about 100% by weight. The compositions disclosed herein may be at least partially or entirely bio-based. Therefore, the composition may contain about 50% to about 100%, preferably about 70% to about 100%, more preferably about 75% to about 100%, even more preferably about 80% to about 100%, and most preferably about 90% to about 100% of a bio-based carbon content. The percentage of bio-based carbon content can be calculated as the “modern carbon percentage (pMC)” derived using the methodology of ASTM D6866-16. The compositions disclosed herein may be substantially free of petroleum-derived solvents or petroleum-derived surfactants.
[0013] The compositions disclosed herein may contain ingredients listed in Section 25(b) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the entire text of which is incorporated herein by reference. The compositions disclosed herein may contain naturally occurring compounds or extracts or derivatives thereof. The compositions disclosed herein may contain at least one organic, certified organic, USDA National Organic Program (“NOP-Compliant”) ingredient. The compositions disclosed herein may contain at least one food-grade or Generally Recognized As Safe (GRAS) ingredient. GRAS ingredients may include any agent listed on the FDA's GRAS list, including direct food additives (see, for example, Sections 201(s) and 409 of the Federal Food, Drug, and Cosmetic Act, November 2016). GRAS ingredients may also include, but are not limited to, substances generally recognized by scientifically trained experts with experience in assessing their safety, which have been adequately demonstrated to be safe through scientific processes (or, for substances used in food prior to January 1, 1958, through scientific processes or based on experience commonly used in food). The use of food-grade or GRAS ingredients enables the compositions disclosed herein to be used by consumers without requiring post-use rinsing of treated surfaces. The compositions disclosed herein may contain ingredients with permissible levels or permissible level exemptions for use on food contact surfaces under the Federal Food, Drug, and Cosmetic Act (see, for example, 40 CFR 180, November 2016, December 2015).
[0014] water
[0015] Aqueous liquid compositions are convenient to use because they can be easily applied directly to arthropod pests or weeds with minimal residue on adjacent surfaces. Pest control compositions may be substantially free of geologically derived (e.g., petroleum-based) carrier oils, such as mineral oils, because products containing carrier oils can be messy to use and may leave residue on treated surfaces.
[0016] The pest control composition may contain about 40% to about 99% water by weight of the composition. The pest control composition may contain about 40% to about 95%, or about 50% to about 90%, or about 55% to about 80%, or about 58% to about 78%, or about 60% to about 75%, or about 62% to about 72% water by weight of the total composition.
[0017] Active ingredients
[0018] The pest control composition may contain one or more active ingredients (also referred to herein as active substances). The pest control composition may contain one or more active ingredients in amounts of about 0.005% to about 30%, about 0.05% to about 25%, about 0.15% to about 20%, about 0.5% to about 15%, about 1% to about 12%, or about 2% to about 10% by weight of the composition.
[0019] Non-limiting examples of active ingredients include aldehyde C16 (pure), almond oil, terpenes, α-terpineol, verbenatenone, α-cedrene, cinnamaldehyde, pentylcinnamaldehyde, cinnamyl acetate, amyl salicylate, anisaldehyde, citric acid, cedrol, benzyl alcohol, benzyl acetate, cinnamaldehyde, cinnamyl alcohol, carvacrol, caryophyllene, carvacrol, citral, citronellol, methylheptenone, citronellol, dimethyl salicylate, eucalyptol (also known as 1,8-cineole), thujopsene, 3-thujopsanon e) alpha-thujone, beta-thujone, fenchone, eugenol acetate (e.g., isoeugenol acetate), eugenol, isoeugenol, isoeugenol methyl ether, galaxolide, geraniol, guaiadiene, guaiacol, ionone, menthol (e.g., L-menthol), menthyl ester, menthone, carvone (e.g., L-carvone), camphor, camphene, p-isopropyltoluene, borneol, borneol esters esters), Borneol acetate, Isoborneol acetate, Terpinene (such as γ-terpinene), Methyl anthranilate, Methyl ionone, Methyl salicylate, Nerol, Phyllanthrene (such as α-phellandrene), Peppermint oil, Perillaldehyde, 1- or 2-phenylethanol, Phenylacetyl 1- or 2-propionate, Piperaldehyde, Piperyl acetate, Piperol, D-pulegone, 4-terpinen-4-ol, Terpinyl acetate, 4-tert-butylcyclohexyl acetate, Myrcene, Chavicol, Acetaldehyde, Safrole, 4-terpinen alcohol, Eucalyptol, Dimethyl trisulfide, Diallyl disulfide, Diallyl sulfide, Diallyl tetrasulfide, 3-vinyl-4H-1,2-dithiain (3-vinyl-[4H]-1,2-dithiin), thyme oil, white thyme oil, red thyme oil, thymol, anethole (such as trans-anethole), vanillin, ethyl vanillin, castor oil, cedar oil, cedarwood oil, cinnamon, cinnamon oil, lemongrass, lemongrass oil, clove, clove oil, corn oil, corn mint oil, oregano oil, cottonseed oil, garlic, garlic oil, bay leaf oil, lemongrass oil, flaxseed oil, peppermint, peppermint oil, peppermint, peppermint oil, spearmint, rose oil, spearmint oil, rosemary, rosemary oil, sesame, sesame oil, soybean oil, white pepper, licorice oil, wintergreen oil, fennel oil (such as star anise oil), clove flower oil, black seed oil, bay leaf oil. Oils containing grapefruit seed oil, grapefruit oil, lemon oil, orange oil, neroli oil, tea tree oil, cedarwood leaf oil, camphor oil, marigold (Tagete minuta) oil, lavender oil, Lippia javanica oil, bergamot oil, galbanum oil, eucalyptus oil, Angelica pubescens oil, and mixtures thereof.
[0020] The pest control composition may contain one or more active ingredients selected from about 0.005% to about 15%, preferably about 0.05% to about 15%, more preferably about 0.15% to about 12%, and even more preferably about 0.5% to about 10%, of the following active ingredients: eugenol, 2-phenylethyl propionate, menthol, menthone, amyl butyrate, geraniol, limonene (e.g., d-limonene), p-isopropyltoluene, linalool, linalyl acetate, camphor, methyl salicylate, pinene (e.g.) Examples of such pesticides include α-pinene, β-pinene, eucalyptol, piperaldehyde, piperol, tetrahydrolinalool, thymol, carvone (e.g., L-carvone), vanillin, ethyl vanillin, isoeugenol, bornyl acetate, isobornyl acetate, terpinene (e.g., γ-terpinene), cinnamyl acetate, cinnamyl alcohol, cinnamaldehyde, ethyl cinnamate, pyrethroids, abamectin, azadirachtin, rotenone, boric acid, spinosad, biopesticides, synthetic pesticides, and mixtures thereof.
[0021] The pest control composition may contain one or more synthetic insecticides. Non-limiting examples of synthetic insecticides include pyrethroids such as bifenthrin, cis-cypermethrin, cypermethrin, permethrin, fenvalerate, deltamethrin, allethrin, and lambda-cyhalothrin; synthetic agents such as piperonyl butyl ether; juvenile hormone analogs such as tebufenozide, tebufenozide, and tebufenozide; and neonicotinoids such as imidacloprid, acetamiprid, and thiamethoxam, and mixtures thereof. The pest control composition may contain less than about 10%, or less than about 5%, or less than about 2%, or less than about 1%, or less than about 0.5%, or less than about 0.1% of synthetic insecticide by weight. Alternatively, the pest control composition may be substantially free of synthetic insecticides.
[0022] Pest control compositions may contain one or more biological insecticides. Non-limiting examples of biological insecticides include pyrethrum, rotenone, neem oil, and mixtures thereof.
[0023] The pest control composition may contain one or more active ingredients, based on a weight of about 0.15% to about 15%, or about 0.5% to about 15%, or about 0.5% to about 10%, of the composition, wherein the active ingredient is a plant essential oil. The pest control composition may contain one or more plant essential oils selected from the group consisting of corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, geranium oil, lemongrass oil, and mixtures thereof, preferably selected from the group consisting of corn peppermint oil, spearmint oil, rosemary oil, thyme oil, and mixtures thereof, and more preferably selected from the group consisting of corn peppermint oil, rosemary oil, and combinations thereof.
[0024] surfactants
[0025] The pest control compositions disclosed herein may be formulated with one or more surfactants. The pest control compositions may contain one or more surfactants, preferably one or more anionic surfactants, preferably sodium lauryl sulfate, in amounts of about 0.01% to about 15%, about 0.1% to about 10%, about 1% to about 10%, about 1% to about 12.5%, about 1% to about 15%, or about 1% to about 8%.
[0026] The spray droplets of an insecticidal composition containing an active agent are preferably capable of wetting the target surface and spreading or covering the target area to perform its intended function. Surfactants typically reduce the surface tension of water on the surface of the spray droplets by lowering the interfacial tension between the spray droplets and the target surface (e.g., the exoskeleton of an arthropod). Surfactants also wet and disperse particles of the active ingredient in the composition before spraying, thereby enabling more uniform coverage and wetting of the target during spraying. Surfactants can also emulsify active agents that are not readily soluble in water, such as oils. Therefore, surfactants include a variety of agents known to be used as emulsifiers or wetting agents. Suitable surfactants include anionic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, cationic surfactants, or mixtures thereof.
[0027] Anionic surfactants are surfactant compounds containing both long-chain hydrocarbon hydrophobic and hydrophilic groups in their molecular structure, including salts such as carboxylates, sulfonates, sulfates, or phosphate groups. These salts can be sodium, potassium, calcium, magnesium, barium, iron, ammonium, and amine salts of such surfactants. Anionic surfactants include alkali metal salts, ammonium salts, and alkyl alcohol ammonium salts of organosulfur reaction products, which have alkyl or alkylaryl groups and sulfonate or sulfate groups in their molecular structure containing about 8 to about 22 carbon atoms. Examples of such anionic surfactants include alkylbenzene sulfonates (e.g., linear alkylbenzene sulfonates, such as dodecylbenzene sulfonate and its salts) having about 8 to about 22 carbon atoms in the allyl group, alkyl sulfates and their alkali metal salts (preferably those having about 8 to about 22 carbon atoms in the alkyl group, such as sodium dodecyl / lauryl sulfate), water-soluble salts of alkyl ether sulfates having about 8 to about 22 carbon atoms in the alkyl group, and mixtures thereof with salts of about 2 moles to about 9 moles of ethylene oxide (e.g., sodium lauryl ether sulfate). The aryl group typically comprises one or two rings, the alkyl group typically comprises about 8 to about 22 carbon atoms, and the ether group typically comprises about 1 mole to about 9 moles of ethylene oxide (EO) and / or propylene oxide (PO), preferably EO. Preferred anionic surfactants are sodium lauryl sulfate or SLS (also known as sodium dodecyl sulfate). The pest control composition may contain about 1% to 10%, preferably about 2% to about 8.5%, or about 4% to about 8% sodium lauryl sulfate by weight of the composition.
[0028] Anionic surfactants also include fatty acids and their salts. Fatty acids and their salts are organic molecules comprising a single carboxylic acid moiety (a carboxylic acid anion in the salt) and at least 7 carbon atoms, or about 11 to about 22 carbon atoms, or about 12 to about 16 carbon atoms. These salts can be sodium, potassium, calcium, magnesium, barium, iron, ammonium, and amine salts of fatty acids. Salts of fatty acids are also known as soaps. Fatty acids and their salts can be linear, branched, saturated, unsaturated, cyclic, or mixtures thereof. Non-limiting examples of fatty acids and their salts include caprylic acid, nonanoic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, benzyl acid, tetracosanoic acid, myristone acid, palmitoleic acid, hexadecenoic acid, oleic acid, transoleic acid, isoleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid, erucic acid, docosahexaenoic acid, their sodium, calcium, potassium, or zinc salts, or mixtures thereof.
[0029] Alternatively, the composition may be substantially free of fatty acids, as fatty acids may be difficult to dissolve in aqueous compositions. In particular, the composition may be substantially free of lauric acid, oleic acid, stearic acid, or combinations thereof.
[0030] Suitable anionic surfactants include alkyl succinate sulfonates, alkyl ether succinate sulfonates, olefin sulfonates, alkyl sarcosinates, alkyl monoglyceride sulfates and ether sulfates, alkyl ether carboxylates, alkane sulfonates, acylmethyl taurate, sulfoacetates, acyl lactates, and sulfosuccinamides.
[0031] Amphoteric surfactants are surfactants containing at least one anionic group and at least one cationic group, and can be used as an acid or base depending on pH. Some of these compounds are aliphatic derivatives of heterocyclic secondary and tertiary amines, wherein the aliphatic substituents can be straight-chain or branched, at least one of the aliphatic substituents contains about 6 to about 20, or about 8 to about 18 carbon atoms, and at least one of the aliphatic substituents contains anionic water-soluble groups, such as carboxyl, phosphonate, phosphate, sulfonate, or sulfate groups.
[0032] Amphoteric surfactants are surfactants that possess both positive and negative charges within the same molecule, meaning the molecule is amphoteric at all pH values. Examples of amphoteric surfactants include betaine, sulfobetaine, and lecithin. Amphoteric surfactants typically contain a quaternary ammonium, quaternary phosphorus, or tertiary sulfonium moiety. They contain at least one straight-chain or branched aliphatic substituent containing about 6 to 20, or about 8 to about 18, carbon atoms, and at least one aliphatic substituent containing an anionic water-soluble group (e.g., carboxyl, sulfonate, sulfate, phosphate, or phosphonate).
[0033] Examples of suitable amphoteric and zwitterionic surfactants include alkali metal, alkaline earth metal, ammonium, or substituted ammonium salts of alkyl amphoteric carboxyglycinates and alkyl amphoteric carboxypropionates, alkyl amphoteric dipropionates, alkyl monoacetates, alkyl diacetates, alkyl amphoteric glycinates, and alkyl amphoteric propionates, wherein the alkyl group has 6 to about 20 carbon atoms. Other suitable amphoteric and zwitterionic surfactants include alkylimino monoacetates, alkylimino diacetates, alkylimino propionates, alkylimino dipropionates, and alkyl amphoteric propyl sulfonates (wherein the alkyl group has about 12 to about 18 carbon atoms), as well as alkyl betaines, alkyl acylamino imide alkyl betaines, alkyl sulfobetaine, and alkyl acylamino imide alkyl hydroxy sulfonates.
[0034] Nonionic surfactants can be any known nonionic surfactant, examples of which include condensates of ethylene oxide with a hydrophobic moiety. Nonionic surfactants include ethoxylated primary or secondary aliphatic alcohols having about 8 to about 24 carbon atoms, in a straight-chain or branched configuration, having about 2 to about 40 moles of alcohol per mole, or about 2 to about 9 moles of ethylene oxide per mole. Other suitable nonionic surfactants include condensates of alkylphenols having about 6 to about 12 carbon atoms with about 3 to about 100 moles, 3 to about 60 moles, 3 to about 30 moles, or about 5 to about 14 moles of ethylene oxide. Nonionic surfactants also include ethoxylated castor oil and silicone surfactants such as Silwet L-8610, Silwet L-8600, Silwet L-77, Silwet L-7657, Silwet L-7650, Silwet L-7607, Silwet L-7604, Silwet L-7600, and Silwet L-7280. Nonionic surfactants also include glycerides, such as polyglycerol oleate / stearate.
[0035] The pest control compositions disclosed herein may optionally contain one or more cationic surfactants. Suitable cationic surfactants include quaternary ammonium surfactants and amino surfactants that are positively charged at the pH of the pest control composition.
[0036] The weight ratio of surfactant (preferably anionic surfactant, more preferably sodium lauryl sulfate) to active ingredient can be from about 1:3 to about 30:1, or about 1:3 to about 20:1, or about 1:1 to about 20:1, or about 1:1 to about 10:1, or about 1:3 to about 3:1, or about 1:2 to about 2:1, or about 1:1.5 to about 1.5:1, or about 1:1.2 to about 1.2:1. The weight ratio of surfactant (preferably anionic surfactant, more preferably sodium lauryl sulfate) to lemongrass oil can be from about 1:1 to about 30:1 or from about 2:1 to about 30:1. The weight ratio of surfactant (preferably anionic surfactant, more preferably sodium lauryl sulfate) to active ingredient (preferably essential oil or a component thereof) can be from about 1:1 to about 30:1 or from about 1:1 to about 20:1.
[0037] solvent
[0038] The pest control compositions described herein may contain one or more solvents in amounts of about 0.05% to about 45%, about 0.1% to about 30%, about 1% to about 25%, about 1% to about 15%, or about 8% to about 20% by weight of the composition. Liquid pest control compositions may contain one or more solvents and water.
[0039] Suitable solvents include alcohols, such as monohydric or polyhydric alcohols. Preferred monohydric alcohols are low molecular weight primary or secondary alcohols exemplified by ethanol, propanol, and isopropanol, with isopropanol being preferred. Polyhydric alcohols, such as those containing 2 to 6 carbon atoms and 2 to 6 hydroxyl groups (e.g., ethylene glycol, glycerol, and 1,2-propanediol (also known as propylene glycol)), may also be used.
[0040] Suitable solvents also include esters. The pest control composition may contain one or more esters in amounts of about 0.005% to about 15%, about 0.05% to about 12%, about 0.5% to about 10%, or about 1% to about 7% by weight of the composition. Examples of suitable esters include triethyl citrate, diethyl citrate, monoethyl citrate, isopropyl myristate, tetradecyl myristate, isopropyl palmitate, octyl palmitate, isothermal isopropyl citrate, butyl lactate, ethyl lactate, butyl stearate, triethyl citrate, glyceryl monooleate, glyceryl dicaprylate, glyceryl dimyristate, glyceryl dioleate, glyceryl distearate, glyceryl monomyristate, glyceryl monocaprylate, glyceryl monooleate, decyl oleate, glyceryl stearate, octyl stearate, octyl stearate, putty stearate, isostearyl neopentanoate, PPG myristyl propionate, diglyceryl monooleate, and diglyceryl monostearate. The pest control composition may contain triethyl citrate, preferably from about 0.005% to about 15%, or about 0.05% to about 12%, or about 0.5% to about 10%, or about 1% to about 7% of the composition by weight.
[0041] Additional solvents include lipophilic fluids, including siloxanes, other organosilicones, hydrocarbons, glycol ethers, glycerol derivatives (such as glycerol ethers), perfluorinated amines, perfluorinated and hydrofluoroether solvents, low-volatility nonfluorinated organic solvents, glycol solvents, and mixtures thereof.
[0042] Suitable solvents listed in Section 25(b) of the Federal Insecticides, Fungicides, and Rodenticides Act (FIFRA) include butyl lactate (including its enantiomers), acetic acid, 1,2-propanediol carbonate, isopropyl myristate, ethyl lactate (including its enantiomers), and glycerol.
[0043] Preferred solvents include isopropanol, triethyl citrate, ethanol, glycerol, ethyl lactate, their renewable forms, and mixtures thereof. The pest control compositions described herein may contain about 1% to about 45%, or about 1% to about 30%, or about 1% to about 25%, or about 1% to about 15% by weight of the composition, of a solvent selected from the group consisting of isopropanol, triethyl citrate, and mixtures thereof. The pest control compositions described herein may contain about 8% to about 20% by weight of the composition of isopropanol. The pest control compositions described herein may contain about 0.3% to about 5%, preferably about 0.3% to about 3% by weight of the composition of glycerol.
[0044] pH adjuster
[0045] The pest control composition may contain, by weight of about 0.00001% to about 1.5%, preferably about 0.0001% to about 1%, more preferably about 0.001% to about 0.8%, and even more preferably about 0.01% to about 0.6%, a pH adjuster, such as a carboxylic acid or a salt thereof selected from the group consisting of: citric acid or a salt thereof, malic acid or a salt thereof, acetic acid or a salt thereof, fumaric acid or a salt thereof, humic acid or a salt thereof, and mixtures thereof, preferably citric acid or a salt thereof, more preferably anhydrous citric acid or citric acid monohydrate. The composition described herein may contain, by weight of about 0.00001% to about 1.5%, citric acid or a salt thereof, such as sodium citrate, monosodium citrate, disodium citrate, trisodium citrate, trisodium citrate dihydrate, potassium citrate, monopotassium citrate, tripotassium citrate, tripotassium citrate monohydrate, or dipotassium citrate. Carboxylic acids (such as citric acid) or salts thereof may be used to adjust the pH of the composition and / or as chelating agents.
[0046] The pest control composition may be affected by temperature fluctuations during transportation, storage and / or use. The pest control composition is preferably stable at low temperatures (i.e., from about 5°C to about 10°C).
[0047] The pest control composition may have a surface tension in the range of about 10 mN / m to about 60 mN / m, or about 15 mN / m to about 50 mN / m, or about 18 mN / m to about 40 mN / m, or about 20 mN / m to about 30 mN / m, or about 22 mN / m to about 28 mN / m, as measured according to the methods described herein. It is believed that the droplets can be preferably used to deliver directional spraying (particularly for non-selective herbicide compositions) while also adequately covering the target area.
[0048] The pest control composition may comprise particles having an intensity average particle size of about 2 nm to about 500 nm, alternatively about 4 nm to about 400 nm, and alternatively about 5 nm to about 100 nm. The composition may comprise particles with an intensity average particle size of less than about 1 micrometer, preferably less than about 500 nm. The intensity average particle size may be measured according to the particle size testing method described below.
[0049] The pest control composition may comprise particles with a volume average size ranging from about 1 nm to about 100 nm, or from about 2 nm to about 50 nm, or from about 2 nm to about 25 nm, or from about 2 nm to about 10 nm. The composition may comprise particles with a volume average size of less than about 1 micrometer, preferably less than about 500 nm. The average volume particle size may be measured according to the particle size testing methods described below. The volume average particle size may be selected to provide a transparent or translucent composition and to effectively deliver the active agent to the target surface or area.
[0050] The pest control composition may have an NTU value of less than about 200, or less than about 100, or about 0.5 to about 50, or about 1 to about 25. Compositions having NTU values within the disclosed range may be perceived by consumers as clear, transparent, or translucent, which may mean purity, quality, and / or that the composition is unlikely to stain surfaces.
[0051] The CIELAB color code (based on ASTM D5386-93b) can be used to quantify the color of control compositions for arthropod pests. The CIELAB color code can also be referred to as L... a b The CIELAB color code is a color standard defined by the International Commission on Illumination (CIE) in 1976. The CIELAB color code represents color as three values: L... Indicates perceived brightness, a and b The four unique colors representing human vision (red, green, blue, and yellow), where b The value represents blue / yellow. The composition may have a b content of about 0 to about 5, or about 0.01 to about 4, or about 0.05 to about 3.5, or about 0.1 to about 3. Value. Has b according to the disclosed range. The composition is perceived by consumers to have a colorless appearance, while b is outside the disclosed range. Values, especially b greater than 5 A yellow color, which may indicate to consumers, could mean that the composition contains impurities, has degraded, and / or is unsuitable for use.
[0052] The pest control composition may have a Brookfield viscosity in the range of about 1 cps to about 500 cps, or about 1 cps to about 300 cps, or about 1 cps to about 200 cps, or about 1 cps to about 100 cps, or about 2 cps to about 100 cps, or about 3 cps to about 50 cps, as measured by the methods described herein. Brookfield viscosity enables aerosol dispensing devices to dispense the composition in droplet form. For some products, such as insecticides, droplets may be preferred, particularly compared to mist, stream, or foam.
[0053] The pest control composition may comprise: (a) sodium lauryl sulfate in an amount of about 0.5% to about 12%, preferably about 1% to about 10%, more preferably about 2% to about 8.5%, and even more preferably about 3% to about 7.5% by weight of the composition; and (b) an active ingredient in an amount of about 0.5% to about 15%, preferably about 1% to about 10%, more preferably about 1.5% to about 8% by weight of the composition, wherein the active ingredient is selected from the group consisting of: corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, and basil. Sunflower oil, lemongrass oil, eugenol, geraniol, nerol, vanillin, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-isopropyltoluene, linalool, eucalyptol / 1,8-cineole, α-pinene, borneol acetate, γ-terpinene, and mixtures thereof, preferably selected from the group consisting of geraniol, corn peppermint oil, peppermint oil, rosemary oil, lemongrass oil, and mixtures thereof; and (c) water, about 60% to about 90%, preferably about 65% to about 85%, more preferably about 70% to about 80% by weight of the composition.
[0054] The pest control composition may optionally contain urea at about 0.5% to about 10%, preferably about 1% to about 5%, by weight of the composition. The pest control composition may also optionally contain a solvent at about 0.1% to about 45%, preferably about 0.5% to about 35%, more preferably about 1% to about 25%, and even more preferably about 2% to about 20%, by weight of the composition, the solvent being selected from the group consisting of isopropanol, triethyl citrate, isopropyl myristate, ethyl lactate, butyl lactate, butyl stearate, glycerin, and mixtures thereof, preferably selected from the group consisting of isopropanol, triethyl citrate, and mixtures thereof. The pest control composition may also optionally contain a carboxylic acid or a salt thereof, selected from the group consisting of citric acid or a salt thereof, malic acid or a salt thereof, acetic acid or a salt thereof, fumaric acid or a salt thereof, humic acid or a salt thereof, and mixtures thereof, preferably citric acid or a salt thereof. The pest control composition may also optionally contain an ingredient selected from pH adjusters, propellants, preservatives, thickeners, fatty acids or salts thereof, and combinations thereof.
[0055] Pest control compositions may be supplied as concentrated compositions, which are mixed with a diluent (e.g., water) before use, or as ready-to-use compositions, which can be applied directly to weeds (e.g., as a spray) without prior dilution by the consumer. Ready-to-use compositions may be preferred by some consumers because they do not require dilution, which can be messy, inconvenient, and / or require multiple containers. Pest control compositions may contain selected ingredients suitable for direct spraying onto pests at selected levels.
[0056] The pest control composition may be an oil-in-water emulsion. The pest control composition may have a turbidity of less than about 20 NTU and a b... Values or combinations thereof.
[0057] The pest control composition may have a pH in the range of about 3.0 to about 11.0, or about 4.0 to about 11.0, or about 4.0 to about 9.0, or about 5.0 to about 9.0, or about 5.0 to about 8.0, or about 6.0 to about 8.0, or about 6.0 to about 7.0.
[0058] The pest control composition may be a "low volatile organic compound (VOC)" composition and contain about 3% or less VOC by weight. Alternatively, the pest control composition may contain more than 3% volatile organic compounds (VOCs) by weight. The pest control composition may contain more than 3% to about 35% volatile organic compounds (VOCs) by weight. It may be desirable to keep the total VOC level in the pest control composition less than or equal to about 3% by weight. VOCs may be measured according to California Air Resources Board (CARB) method 310 for VOC determination (May 25, 2018).
[0059] Waterborne pest control compositions are described in U.S. Application Serial Nos. 17 / 865943, 18 / 082,891, 18 / 334,004, and 63 / 509,339 and 63 / 509,380, all of which are incorporated herein by reference. Suitable herbicide compositions may also comprise about 40% to about 99% water by weight of the composition, and are described in WO Application Serial No. PCT / US23 / 68554 and U.S. Provisional Application Serial No. 63 / 355134, all of which are incorporated herein by reference.
[0060] plastic containers
[0061] It has been found that the aqueous pest control compositions of this disclosure are compatible with and can be used for storage in transparent, pressurized plastic containers or bottles. “Plastic” means any synthetic or organic material that can generally be molded or shaped when heated and then hardened into a desired form, including but not limited to polymers, resins, and cellulose derivatives. Plastics can be polymers and can be partially, substantially, or entirely composed of: polyesters; polyethylene terephthalate (“PET”); polyethylene naphthalate, polyethylene furanate, polyamides; nylon 6 / 6, nylon 66, nylon 11, polycarbonate; polyoxymethylene; polyacrylonitrile; polyolefins; polyethylene, polypropylene, fluoropolymers; poly(butylene succinate); other polymeric materials in their original, recycled, and remilled forms; other polymeric materials in their bio-based and petroleum-based forms; and mixtures thereof. Plastic containers may include multiple layers of other polymeric materials. “Polymeric” means that the component is formed from a plastic material, including polymers, and / or especially polyolefins, polyesters, or nylon. Therefore, the entire plastic container or specific components thereof may be metal-free, thereby allowing exposure to microwave energy. Usable plastic materials include, but are not limited to: polypropylene (PP), polyethylene (PE), polycarbonate (PC), polyamide (PA) and / or polyethylene terephthalate (PET), polyvinyl chloride (PVC); and polystyrene (PS). Polyethylene terephthalate (PET) is preferred.
[0062] Plastic containers can be pressurized to an internal gauge pressure of approximately 345 kPa (55 psi) to approximately 1100 kPa, or approximately 414 kPa to approximately 1100 kPa, or approximately 460 kPa to approximately 1100 kPa, or approximately 480 kPa to approximately 1100 kPa, or approximately 500 kPa to approximately 1100 kPa, or approximately 550 kPa to approximately 1100 kPa, or approximately 600 kPa to approximately 1100 kPa, or approximately 690 kPa (100 psi) to approximately 1100 kPa, or approximately 827 kPa (120 psi) to approximately 1100 kPa, or 935 kPa (135 psi) to approximately 1100 kPa, or approximately 600 kPa to approximately 1,000 kPa, or approximately 700 kPa to approximately 900 kPa.
[0063] Plastic containers with crystallization necks can be pressurized to internal gauge pressures up to 1300 kPa, preferably 345 kPa to 1300 kPa, or 414 kPa to about 1100 kPa, or about 460 kPa to about 1100 kPa, or about 480 kPa to about 1100 kPa, or about 500 kPa to about 1100 kPa, or about 550 kPa to about 1100 kPa, or about 600 kPa to about 1100 kPa, or about 690 kPa (100 psi) to about 1100 kPa, or about 827 kPa (120 psi) to about 1100 kPa, or 935 kPa (135 psi) to about 1100 kPa, or preferably about 460 kPa to about 1100 kPa. The final gauge pressure of the plastic container is 0 when the propellant has been completely discharged from the container. When the residual aqueous pest control composition is retained, the final gauge pressure can be from about 0 kPa to about 120 kPa. Suitable pressurized plastic aerosol containers are disclosed in U.S. Application Serial No. 15 / 627479 and U.S. Patent Publication No. 2017 / 0360978A1, which are incorporated herein by reference.
[0064] Pressurized plastic containers include a propellant. Any suitable propellant may be used. Propellants may include compressed gases such as nitrogen, carbon dioxide, compressed air, and mixtures thereof. Propellants may include liquefied hydrocarbon gases such as butane, isobutane, and propane, or hydrofluoroolefins (“HFO”). If a liquefied gas propellant is used, the pressurized plastic container may include a bag-in-bottle configuration. Propellants listed in 49 CFR §1.73.115, Class 2, Part 2.2 of the U.S. Federal Register are also considered acceptable. Propellants may include trans-1,3,3,3-tetrafluoroprop-1-ene, and optionally a gas with CAS number 1645-83-6. One such propellant is commercially available under the trade names HFO-1234ze or GWP-6 from Honeywell International, Morristown, New Jersey. Propellants may be selected from the group consisting of nitrogen, carbon dioxide, and mixtures thereof.
[0065] If necessary, the propellant can be condensable. "Condensable" means that the propellant transforms from a gaseous state to a liquid state within the container and under the pressures encountered during use. Generally, the highest pressure occurs after the container is filled with the product but before the user first dispenses it. When the product is depleted during use, condensable propellants offer the advantage of a flatter decompression profile.
[0066] The volume ratio of the aqueous pest control composition to the propellant can range from about 40 / 60 to about 70 / 30, and alternatively from about 50 / 50 to about 60 / 40. The aqueous pest control composition is delivered from a pressurized plastic container 10, which includes a delivery assembly including, but not limited to, valves for controlling flow and sealing the composition within the pressurized plastic container, push-button actuators, and nozzles for dispensing the composition into the environment. The aqueous pest control composition can contact the inner surface of the plastic container 10 and is not contained within a plastic container via a bag-in-can or a lined plastic container. In other embodiments, the aqueous pest control composition may be contained within a bag-in-can or bag-in-bottle plastic container.
[0067] The pressurized plastic container can hold about 20 grams to about 500 grams, or about 20 grams to about 300 grams, or about 50 grams to about 500 grams, or at least about 20 grams, or at least about 120 grams, or at least about 130 grams, or at least about 150 grams of the pest control composition.
[0068] Transparent or translucent pressurized plastic containers may have a transmittance greater than 25% in the wavelength range of approximately 410 nm to 800 nm. Transparent or translucent plastic containers may have a transmittance greater than approximately 25%, or greater than approximately 30%, or greater than approximately 40%, or greater than approximately 50% in the visible portion of the spectrum (approximately 410 nm–800 nm). Alternatively, the absorbance of the plastic bottle may be measured as less than approximately 0.6 or by having a transmittance greater than approximately 25%, where the transmittance percentage is equal to:
[0069] For the purposes of this disclosure, a wavelength in the visible light range is considered to be transparent / semi-transparent if it has a transmittance of more than about 25%.
[0070] The plastic container can store about 50g to about 500g, or about 150g to about 400g, or about 200g to about 350g of the composition. The weight of the pest control product including the composition is preferably selected so that the user can comfortably manipulate and actuate the product with one hand, while providing enough composition to treat one or more target areas / surfaces of different sizes in one or more applications, such as a multi-purpose product.
[0071] Spray characteristics
[0072] As detailed below, in the spray droplet size testing method, the spray droplet volume size distribution measurements, including spray D(50) normalized values, spray D(90) normalized values, and spray D(2,3) normalized values, are determined using a Malvern Spraytec 2000 laser diffraction spray droplet size measuring instrument (supplied by Malvern Instruments, Worcestershire, UK). When dispensed via an aerosol spray dispenser, the pest control composition may have a spray D(90) in the range of about 100 micrometers to 900 micrometers, or about 125 micrometers to about 800 micrometers, or about 150 micrometers to about 700 micrometers. The spray D(90) can be selected to effectively deliver the active agent to the target surface or area. Furthermore, spray D(90) within the disclosed range can be considered capable of traveling a distance of one meter or more and depositing on the target surface. Particles with a spray D(90) less than 100 micrometers may produce a spray that produces too much mist or a spray that does not travel fast enough to reach the target surface.
[0073] The aerosol spray dispenser may have a spray rate of about 0.5 g / s to about 5 g / s, or about 0.75 g / s to about 4 g / s, or about 1.25 g / s to about 3.5 g / s, or about 1.5 g / s to about 3 g / s. The spray rate can be selected to enable targeted dispensing and delivery of the composition without over-spraying or spraying the composition outside the target area.
[0074] Unbound by theory, the aerosol pest control products disclosed herein are believed to be particularly advantageous for directional spraying of pest control compositions (e.g., insecticides or herbicides) from a distance of about 0.3 m to about 1.5 m, preferably about 0.3 m to about 1 m from the target pest or surface. Selectable compositions (including characteristics such as viscosity and surface tension), dispensing pressure, and / or nozzle designs can be chosen to provide optimal spray exit velocity and particle size distribution (PSD) for spraying the pest control product onto the target pest or surface at a distance of about 0.3 m to about 1.5 m, preferably about 0.3 m to about 1 m.
[0075] Methods for controlling weeds
[0076] The present invention also relates to a method for controlling unwanted weeds. In some aspects, the method for controlling weeds may include the steps of: (a) providing a pest control composition (e.g., a herbicide composition); and (b) contacting the weeds with an effective amount of the pest control composition. The pest control composition may be applied (e.g., by spraying as an aqueous liquid) to a target area in an amount ranging from about 0.5 ml / ft to about 40 ml / ft, alternatively from about 0.9 ml / ft to about 36 ml / ft.
[0077] Pest control compositions (e.g., herbicides) can be used to suppress the growth and / or development of weeds such as, for example, dandelion, milk thistle, broadleaf plantain, white clover, green foxtail, amaranth, yellow sedge, crabgrass, evening primrose, chickweed, common bermudagrass, morning glory, wild carrot, ryegrass, umbrella sedge, or ivy. The pest control composition (e.g., herbicide) can be sprayed onto the leaves of the target weed. The pest control composition (e.g., herbicide) can be used to treat existing weeds or to prevent weed growth. In the latter case, the pest control composition (e.g., herbicide) can be used for pre-emergence pest control.
[0078] Pest control compositions (e.g., herbicides) can be used to control weeds growing from a variety of surfaces. For example, pest control compositions (e.g., herbicides) can be sprayed on hard surfaces with openings in dirt where weeds may be present or may develop, such as asphalt, concrete, interlocking bricks, roads, and highways. Pest control compositions (e.g., herbicides) can be applied to lawns, golf course greens, or flower beds where weeds may be present or may develop.
[0079] Pest control compositions (e.g., herbicides) can be applied as a single treatment or multiple treatments, such as applying for several consecutive days or weeks.
[0080] Methods for controlling arthropod pests
[0081] The present invention also relates to a method for controlling unwanted arthropods, such as insects. In some aspects, a method for controlling arthropod pests may include the steps of: (i) providing a pest control composition (e.g., an insecticide composition); (ii) contacting the arthropod pests with the pest control composition as described herein; and (iii) optionally wiping any excess pest control composition from adjacent surfaces. The arthropod pests may come into contact with an effective amount of the pest control composition. Because of the presence of a surfactant, such as sodium lauryl sulfate, in the composition, optionally wiping adjacent surfaces may provide a beneficial cleaning effect on the surfaces. Optionally, adjacent surfaces may be allowed to dry without wiping or rinsing.
[0082] Pest control compositions (e.g., insecticides) can be applied as a single treatment or multiple treatments, such as applying for several consecutive days or weeks.
[0083] Test methods
[0084] Brinell viscosity
[0085] Brookfield DV-E viscometer was used to measure Brookfield viscosity at 23°C ± 2°C. The liquid was contained in a wide-mouth glass bottle with a width of approximately 5.5 cm to 6.5 cm and a height of approximately 9 cm to 11 cm. A spindle LV2 was used at a rotation speed of 60 RPM. The test was performed according to the instrument's instructions.
[0086] pH testing method
[0087] pH can be measured using a standard pH meter, such as the Beckman Coulter PHI1410 pH meter (manufactured by Beckman Coulter, Brea, California, USA) with a universal probe. Calibrate the pH meter according to the manufacturer's instructions. Measure the composition after storing it at room temperature (approximately 23°C ± 2°C) for approximately 24 hours.
[0088] Particle size testing methods
[0089] Particle size was measured using light scattering data techniques. Particle size was determined using a Malvern Zetasizer Nano ZSP (Malvern Panalytical, Malvern, United Kingdom). The software used for instrument control and data acquisition was Malvern Zetasizer Software version 8.01.4906 (Malvern Panalytical). Unless otherwise specified, all samples were stored at 25°C.
[0090] In BRAND ® Measurements are performed using disposable polystyrene cuvettes (catalog number 759070D or equivalent). Add 1 mL of sample to the cuvette using a disposable pipette (VWR, catalog number 414004-004 or equivalent), swirl, and then discard. Add another 1 mL of sample to the cuvette using the same disposable pipette. Place the cap on the cuvette and wipe all surfaces of the cuvette with lint-free lens paper. Install the cuvette into the instrument according to the manufacturer's instructions, ensuring that light enters the sample correctly during measurement, and then cap the cuvette.
[0091] Prepare the instrument according to the manufacturer's instructions. Perform particle size measurement using software with the following settings: 1) Under the "Measure" section, select the "Manual" option. Then set the "Measurement Type" to "Size".
[0092] 2) Then select the “Sample” section. In the “Material” subsection: select “SDS” for “Material”; set “RI” to 1.461; and set “Absorption” to 0.001. In the “Dispersant” subsection: select “Water” for “Dispersant”; set “Temperature” to “25.0℃”; set “Viscosity” to 0.8872cP; and set “RI” to 1.330. In the “General options” subsection, select “Mark-Houwink Parameters”, set “A Parameter” to 0.428; and set “K Parameter (cm² / s)” to 7.67e-05. In the "Temperature" subsection: set "Temperature" to 25.0℃; set "Equilibration Time (second)" to 120. In the "Cell" subsection: select "Disposable cuvettes" for "Cell Type"; and select the "DTS0012" option.
[0093] 3) Then select the "Measurement" section. Set the "Angle of Detection Measurement Angle" to "173° Backscatter (NIBS default)"; set the "Measurement Duration" to "Automatic"; set the "Number of Runs" to 11; set the "Runduration (seconds)" to 10; set the "Number of Measurements" to 3; set the "Delay between Measurements (seconds)" to 0; select "Append Measurement Number to Sample Name"; and do not select "Allow Results to be Saved Containing Correlation Data Only". In the "Advanced" sub-section: set "Measurement duration, Extend Duration for Large Part" to "No"; set "Measurement settings, Positioning method" to "Seek for Optimum Position"; and set "Automatic attenuation selection" to "Yes".
[0094] 4) Then select the “Data Processing” section and choose the following option: Select “General Purpose (Normal Resolution)” for “Analysis Model”. Set "Size Analysis Parameters" to "Analysis Details"; set "Name" to "Customized" and "Description" to "Customized Analysis"; set "DisplayRange" to "Lower Limit" of 0.6 and "Upper Limit" of 6000; select "Normal" for "Multimodal – analysis, Resolution"; set "Size classes, Number of size classes" to 70; set "Lower Size Limit" to 0.4; set "Upper Size Limit" to 10,000; set "Lower Threshold" to 0.05; and set "Upper Threshold" to 0.01. In the "Reports" subsection: do not select "Print Report", and in the "Export" subsection: do not select "Export Results".
[0095] Spray droplet size test method
[0096] The term "Dv10 value" describes the average particle size of 10% by volume of particles with a smaller size. Similarly, the term "Dv50 value" describes the average particle size of 50% by volume of particles with a smaller size, and the term "Dv90 value" describes the average particle size of 90% by volume of particles with a smaller size. The Sauter average diameter (D[3,2]) is the weighted average surface diameter, assuming that spherical particles have the same surface area as actual particles. .
[0097] The spray droplet volume size distribution, including spray D(50), spray D(90), and spray D(2,3) normalized values, was determined using a Malvern Spraytec 2000 laser diffraction spray droplet size measurement instrument (supplied by Malvern Instruments, Worcestershire, UK). This instrument is equipped with a 300mm lens with a focal length of 150mm and an air purging system (not exceeding 14.5 psi). The system was controlled using Mie theory and Fraunhofer approximate optics theory, via a computer and accompanying software (such as Spraytec software version 3.20 or equivalent). The system was placed in a fume hood under atmospheric control, carefully positioned directly opposite the actuated spray plume trajectory to prevent saturation, with an airflow rate between 50 L / min and 70 L / min (60 L / min being the target rate). The distance from the dispensing nozzle orifice to the laser was 30 cm during measurements. A new spray bottle was used for each sample analyzed repeatedly. Illumination conditions remain constant during or between background control and test sample data collection cycles. A light occlusion value below 95% is considered suitable for providing accurate results.
[0098] The samples analyzed included “Example” samples (which are samples according to this disclosure) and comparative samples. All newly generated Example samples were tested within three hours of preparation and measured at a temperature between 20°C and 22°C. Deionized water was used as a standard reference spray and labeled “Control”.
[0099] Use the following spray SOP instrument configuration for spray measurement: Select the "Rapid SOP" type and choose the following settings: Set "Hardware Configuration" to "Default", "Measurement Type" to "Rapid", "Data Acquisition Rate" to "250Hz", and "Lens Type" to "300". In the "Measurement" menu: Set "Background" to "3 seconds", select "Inspection", and uncheck the box under "Output Trigger". Under the "Measurement" tab, select "Rapid", set "Events Number" to "1", "DurationPer Event" to "4000.0", and "Units" to "ms". In the MeasurementTrigger section, set "Trigger Type" to "Transmission drops to level" and "Transmission" to "96". For DataCollection, set "Start" to "52", "Units" to "ms", and select "before the trigger" from the drop-down menu. In the Advanced tab window, deselect all boxes and set "Grouping" to "no grouping"; set "Background Alarms" to "default values". In the Analysis tab, under Optical Properties, set "Particle Set" to "Water", "Dispersant" to "Air", and "Multiple Scattering Analysis" to "Enable".On the "Data Handling" tab, under "Detector," set "Range" to "first: 1 and last: last," select the "No extinction analysis" box, and set "Scattering threshold" to "1." On "Data Handling / Spray Profile," set "Path Length" to "100.0," select "Alarm," and check the "Use default values" box. On the "Additional Properties" tab, set "Curve Fit" to "no fit," set "User Size" to the "enable" box, and set the drop-down menu to "Default." On the "Additional Properties / Advanced" tab, set the particle diameter to a minimum of "0.10" and a maximum of "900," and set "Result Type" to "Volume Distribution." On the "Output" tab, set "Export Option" to "not selected", select "Derived Parameter", select the "Use AveragingPeriod" box, and set it to "0.0" and "ms". On the "Average" menu, select "Average scatter data".
[0100] Use the following spray procedure to perform spray measurements: First, spray the sample from the spray bottle for 1 to 2 seconds to ensure the nozzle is unobstructed and free of blockages; then load the sample into the holding device at the front of the Spraytec 2000 system. Fully depress the actuator. Observe the spray droplet size data and save it as "Average Scatter Data".
[0101] a. The values measured from each sample are normalized to the control sample values based on the following calculations: Normalized value of spray D(50) = D(50)实施例 / D(50) 对照 ; Normalized value of spray D(90) = D(90) 实施例 / D(90) 对照 ; Normalized value of spray D(3,2) = D(3,2) 实施例 / D(3,2) 对照 ; in: Spray D(50), spray D(90), and spray D(3,2) are the values of the example sample and the control sample obtained from the instrument software, respectively.
[0102] The normalized values of spray D(90) and spray D(3,2) reported for each sample are the average values calculated from five repeated spray plumes for each sample.
[0103] Hunter Lab's determination (CIE)b value
[0104] Yellow formation was measured using Hunter Lab (CIE) methods. HunterLab ColorFlex EZ was used. ® A spectrophotometer (HunterLab, 11491 Sunset Hills Road, Reston, Virginia 20190) was used to determine b. Value. The method used is described in detail in "User's Manual for ColorFlex EZ Version 2.2".
[0105] HunterLab ColorFlex EZ ® A spectrophotometer uses a xenon flash lamp to illuminate the sample. The light reflected from the sample is then separated into its component wavelengths by a dispersion grating. The relative intensities of light at different wavelengths along the visible spectrum (400-700 nm) are then analyzed to produce digital results indicating the color of the sample.
[0106] Turbidity method
[0107] A turbidimeter is used to measure the turbidity of a composition. This instrument measures the turbidity of liquids in turbidimetric units (NTU). The method for measuring turbidity is described in detail in the following reference: Hach 2100Q and 2100Qis User Manual, Hach Corporation, 6th Edition, August 2021. If the sample is not homogeneous before analysis, invert the sample until it appears homogeneous, then pour it into an analyte vial for measurement.
[0108] This measurement method determines a quantitative value of turbidity by evaluating the ratio of the primary turbidity light scattering signal to the transmitted light scattering signal. This specific evaluation method provides values between 0 and 1000 NTU, where a higher NTU value indicates a more turbid composition. A water control group can be measured between each test sample to ensure proper equipment operation. For example, water may have a turbidity of approximately 1.11 NTU, and isopropanol may have a turbidity of approximately 0.15 NTU. It is believed that improved emulsification of the active ingredient, particularly the hydrophobic active ingredient, results in lower NTU values.
[0109] Surface tension method
[0110] Surface tension should be measured using an EZ-Pi tensiometer (Kibron, Parrish, Fla.) or equivalent, according to ASTM 1331-14 (published January 2015). Calibrate the instrument using DI water, following the manufacturer's instructions. Perform measurements and report values in mN / m.
[0111] Temperature stability method
[0112] Samples were prepared by combining all composition components in 4-ounce glass vials or 10-ounce plastic (PET) bottles under ambient conditions (25°C). Each sample was mixed, and the initial stability of the samples was observed five minutes after mixing.
[0113] Low-temperature cycling stability was measured by filling 4-ounce glass vials or 10-ounce plastic (PET) bottles with the sample composition. The vials or bottles were sealed and stored at 5°C for 12 to 14 hours. They were then moved to 25°C and stored for 10 to 12 hours to complete one low-temperature cycle. This was repeated twice more, for a total of three low-temperature cycles. After the final incubation at 25°C, the stability of the vials and bottles was visually observed (and turbidity and bt were assessed using the aforementioned turbidity and Hunter Lab (CIE) methods). value).
[0114] Example
[0115] Prepare formulation AE from Table 1 and test it to study turbidity when stored in glass containers and when stored in plastic containers.
[0116] Table 1 .
[0117] Table 2 .
[0118] combination
[0119] Paragraph 1. An aerosol pest control product, said aerosol pest control product comprising: a. A spray dispenser connected to a pressurized plastic container having an internal gauge pressure of about 414 kPa to about 1,100 kPa; b. A pest control composition, said pest control composition being contained in the plastic container and comprising: i. Sodium lauryl sulfate, in amounts of about 1% to about 15% by weight of the composition; ii. An active ingredient comprising, by weight of about 0.005% to about 15%, preferably about 0.15% to about 10%, of the composition, wherein the active ingredient is selected from the group consisting of: corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, geranium oil, lemongrass oil, eugenol, geraniol, nerol, vanillin, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-isopropyltoluene, linalool, eucalyptol / 1,8-cineole, α-pinene, borneol acetate, γ-terpinene, and mixtures thereof, preferably selected from the group consisting of geraniol, corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, lemongrass oil, and mixtures thereof; iii. A first solvent comprising about 0.1% to about 45% by weight of the composition, wherein the first solvent is isopropanol; and iv. Water, comprising about 45% to about 99%, preferably about 50% to about 95% by weight of the composition; and v. Propellant, preferably selected from the group consisting of nitrogen, carbon dioxide, and mixtures thereof.
[0120] Paragraph 2. The aerosol pest control product according to paragraph 1, wherein the container is transparent or translucent, preferably the container has a light transmittance of more than about 25% at a wavelength of about 410 nm to about 800 nm.
[0121] Paragraph 3. The aerosol pest control product according to any one of paragraphs 1 to 2, wherein the pest control composition further comprises about 0.1% to about 10% by weight of the composition a second solvent selected from the group consisting of triethyl citrate, isopropyl myristate, propylene glycol carbonate, ethyl lactate, butyl lactate, butyl stearate, glycerol, and mixtures thereof, preferably glycerol, more preferably about 0.1% to about 5% by weight of the composition.
[0122] Paragraph 4. An aerosol pest control product according to any one of paragraphs 1 to 3, wherein the pest control composition comprises about 0.5% to about 10% by weight of the composition of an active ingredient selected from the group consisting of geraniol, corn peppermint oil, peppermint oil, rosemary oil, lemongrass oil, and mixtures thereof, preferably geraniol.
[0123] Paragraph 5. The aerosol pest control product according to any one of paragraphs 1 to 4, wherein the weight ratio of sodium lauryl sulfate to the active ingredient is from about 1:1 to about 20:1.
[0124] Paragraph 6. An aerosol pest control product according to any one of paragraphs 1 to 5, wherein the composition comprises about 0.15% to about 15% by weight of the composition of an active ingredient selected from the group consisting of geraniol, corn peppermint oil, lemongrass oil, rosemary oil, and mixtures thereof.
[0125] Paragraph 7. An aerosol pest control product according to any one of paragraphs 1 to 6, wherein the composition comprises about 0.5% to about 5% corn peppermint oil by weight of the composition.
[0126] Paragraph 8. An aerosol pest control product according to any one of paragraphs 1 to 7, wherein the composition further comprises a carboxylic acid selected from the group consisting of citric acid, malic acid, acetic acid, fumaric acid, humic acid, their salts, and mixtures thereof.
[0127] Paragraph 9. The aerosol pest control product according to any one of paragraphs 1 to 8, wherein the composition has a pH of about 3 to about 9.
[0128] Paragraph 10. The aerosol pest control product according to any one of paragraphs 1 to 9, wherein the composition has a turbidity of less than about 20 NTU and greater than about 0 NTU, preferably less than about 10 NTU and greater than about 0 NTU.
[0129] Paragraph 11. The aerosol pest control product according to any one of paragraphs 1 to 10, wherein the composition has a b content of about 0 to about 5. value.
[0130] Paragraph 12. An aerosol pest control product according to any one of paragraphs 1 to 11, wherein the composition comprises particles having an intensity-average particle size or a volume-average particle size of about 2 nm to about 100 nm, as measured according to a particle size testing method.
[0131] Paragraph 13. An aerosol pest control product according to any one of paragraphs 1 to 12, wherein the composition comprises about 3% to about 35% by weight of volatile organic compounds (VOCs).
[0132] Paragraph 14. The aerosol pest control product according to any one of paragraphs 1 to 13, wherein the composition is substantially free of synthetic insecticides, mineral oils, colorants, defoamers, or combinations thereof.
[0133] Paragraph 15. An aerosol pest control product according to any one of paragraphs 1 to 14, wherein the active ingredient is food safe, preferably all ingredients are food safe.
[0134] Paragraph 16. The aerosol pest control product according to any one of paragraphs 1 to 15, wherein the plastic container stores about 50 g to about 500 g of the pest control composition.
[0135] Paragraph 17. The aerosol pest control product according to any one of paragraphs 1 to 16, wherein the plastic container comprises polyethylene terephthalate, is substantially composed of polyethylene terephthalate, or is composed of polyethylene terephthalate.
[0136] Paragraph 18. A method for controlling pests, the method comprising the steps of: (i) providing a pest control product according to any one of paragraphs 1 to 17; (ii) dispensing the pest control product and bringing the pest into contact with the pest control composition; and (iii) optionally wiping any excess pest control composition from an adjacent surface.
[0137] The dimensions and values disclosed herein should not be construed as strictly limited to the precise numerical values cited. Rather, unless otherwise specified, each such dimension is intended to represent the stated value and the range surrounding its functional equivalent. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.
[0138] It should be understood that each maximum numerical limit given in this specification will include each smaller numerical limit, as if that smaller numerical limit were also indicated in this specification. Each minimum numerical limit given in this specification will include each higher numerical limit, as if such higher numerical limits were explicitly stated herein. Each numerical range given in this specification will include each narrower numerical range falling within such a wider numerical range, as if all such narrower numerical ranges were explicitly stated herein.
[0139] Unless expressly excluded or otherwise limited, every reference cited herein, including any cross-references or related patents or patent applications, and any patent application or patent claiming priority to or benefiting from it, is incorporated herein by reference in its entirety. Reference to any reference is not an endorsement of it as prior art to any disclosed or protected art herein, nor is it an endorsement of any such invention, either on its own or in combination with any one or more references. Furthermore, where any meaning or definition of a term in this invention conflicts with any meaning or definition of the same term in referenced documents, the meaning or definition given to that term in this invention shall prevail.
[0140] While specific embodiments of the invention have been illustrated and described by way of example, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, it is intended that all such changes and modifications falling within the scope of the invention be covered by the appended claims.
Claims
1. An aerosol pest control product, wherein the aerosol pest control product comprises: a. A spray dispenser connected to a pressurized plastic container having an internal gauge pressure of 414 kPa to 1,100 kPa; b. A pest control composition, said pest control composition being contained in the plastic container and comprising: i. 1% to 15% sodium lauryl sulfate based on the weight of the composition; ii. 0.005% to 15%, preferably 0.15% to 10% by weight of the composition, said active ingredient being selected from the group consisting of: corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, lemongrass oil, clove oil, cinnamon oil, cedarwood oil, garlic oil, geranium oil, lemongrass oil, eugenol, geraniol, nerol, vanillin, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-isopropyltoluene, linalool, eucalyptol / 1,8-cineole, α-pinene, borneol acetate, γ-terpinene, and mixtures thereof, preferably selected from the group consisting of geraniol, corn peppermint oil, peppermint oil, spearmint oil, rosemary oil, lemongrass oil, and mixtures thereof; iii. 0.1% to 45% by weight of the composition of the first solvent, wherein the first solvent is isopropanol; iv. 45% to 99%, preferably 50% to 95% water by weight of the composition; and v. Propellant, preferably selected from the group consisting of nitrogen, carbon dioxide, and mixtures thereof.
2. The aerosol pest control product according to claim 1, wherein the plastic container is transparent or translucent, and preferably the container has a light transmittance of more than 25% at a wavelength of 410nm to 800nm.
3. The aerosol pest control product according to any one of the preceding claims, wherein the pest control composition further comprises 0.1% to 10% of a second solvent by weight of the composition, the second solvent being selected from the group consisting of triethyl citrate, isopropyl myristate, propylene glycol carbonate, ethyl lactate, butyl lactate, butyl stearate, glycerol, and mixtures thereof, preferably glycerol, more preferably 0.1% to 5% of glycerol by weight of the composition.
4. The aerosol pest control product according to any one of the preceding claims, wherein the pest control composition comprises 0.5% to 10% by weight of the composition of an active ingredient selected from the group consisting of geraniol, corn peppermint oil, peppermint oil, rosemary oil, lemongrass oil, and mixtures thereof, preferably geraniol.
5. The aerosol pest control product according to any one of the preceding claims, wherein the weight ratio of sodium lauryl sulfate to the active ingredient is 1:1 to 20:
1.
6. The aerosol pest control product according to any one of the preceding claims, wherein the composition comprises 0.5% to 5% corn peppermint oil by weight of the composition.
7. The aerosol pest control product according to any one of the preceding claims, wherein the composition further comprises a carboxylic acid selected from the group consisting of citric acid, malic acid, acetic acid, fumaric acid, humic acid, salts thereof, and mixtures thereof.
8. The aerosol pest control product according to any one of the preceding claims, wherein the composition has a pH of 3 to 9.
9. The aerosol pest control product according to any one of the preceding claims, wherein the composition has a turbidity of less than 20 NTU and greater than 0 NTU, preferably less than 10 NTU and greater than 0 NTU.
10. The aerosol pest control product according to any one of the preceding claims, wherein the composition has a b content of 0 to 5. value.
11. The aerosol pest control product according to any one of the preceding claims, wherein the composition comprises 3% to 35% by weight of volatile organic compounds (VOCs).
12. The aerosol pest control product according to any one of the preceding claims, wherein the composition is substantially free of synthetic insecticides, mineral oils, colorants, defoamers, or combinations thereof.
13. The aerosol pest control product according to any one of the preceding claims, wherein the plastic container stores 50g to 500g of the pest control composition.
14. The aerosol pest control product according to any one of the preceding claims, wherein the plastic container comprises polyethylene terephthalate.
15. A method for controlling pests, the method comprising the following steps: (i) providing a pest control product according to any one of the preceding claims; (i) dispensing the pest control product and bringing the pest into contact with the pest control composition; ii) Optionally, wipe any excess pest control composition from adjacent surfaces.
Citation Information
Patent Citations
Aqueous perfume compositions and freshening products comprising the aqueous perfume compositions contained in pressurized plastic containers
US20170360978A1
Compositions for controlling arthropods
US20230042086A1
Compositions for controlling arthropods
US20230189820A1
Stable aqueous surfactant compositions
US20230416640A1