Flying pest repelling composition

Abstract

The present invention relates to: [1] a composition for repelling flying pests, which is sprayed onto flying pests for use, the composition comprising a surfactant (A), a compound (B) selected from at least one of organic acids and organic acid salts, and water, wherein the surfactant (A) comprises at least one of a salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2); and [2] a spray for repelling flying pests, comprising a spray container and the composition for repelling flying pests described in [1] filled in the spray container.

Description

Technical Field

[0001] This invention relates to a composition for repelling flying pests and a spray for repelling flying pests. Background Technology

[0002] Pests such as mosquitoes and flies are vectors that transmit pathogens and cause infectious diseases in humans and other animals, or cause dermatitis. In particular, some mosquitoes transmit pathogens such as dengue fever, Zika fever, yellow fever, encephalitis, and malaria, making them highly harmful pests from a hygienic perspective.

[0003] In the existing technology, insecticides are usually sprayed to protect the body from these flying pests.

[0004] However, there are concerns about the safety of the insecticidal ingredients in insecticides for human health. In particular, there is a desire to use highly safe insecticides for young children who are prone to mosquito bites.

[0005] Furthermore, current technologies primarily focus on preventing insect bites outdoors, but recent studies have shown that mosquito bites are as frequent or even more frequent indoors as they are outdoors. Therefore, there is a need to develop solutions that protect the body from flying pests even indoors.

[0006] Regarding methods for capturing and repelling flying pests without using insecticidal ingredients, for example, Japanese Patent Application Publication 2012-97004 (Patent Document 1) discloses an insect repellent and an insect repellent preparation, which is an aqueous liquid containing an alkyl methacrylate copolymer with film-forming ability and a surfactant, and can achieve the effect of repelling pests even without containing insecticidal ingredients.

[0007] Japanese Patent Application Publication No. 2011-516484 (Patent Document 2) discloses a biocidal composition comprising a biocidal agent and an adjuvant, which imparts a synergistic killing rate. Summary of the Invention

[0008] This invention relates to a composition for repelling flying pests, which is sprayed onto flying pests and comprises: a surfactant (A), a compound (B) selected from at least one organic acid and organic acid salt, and water.

[0009] The surfactant (A) mentioned above comprises at least one of the following: a salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2). Attached Figure Description

[0010] Figure 1This is an explanatory diagram of the method for evaluating the insecticidal properties of flying pests, which is a planar schematic diagram of a frame (1) containing the mosquito used in the evaluation.

[0011] Figure 2 This is an explanatory diagram of the method for evaluating the insecticidal properties of flying pests. It is a schematic diagram of the situation in which the composition for repelling flying pests is sprayed into the frame (1) from the side view of the frame (1). Detailed Implementation

[0012] The insect repellent in Patent Document 1 contains a (meth)acrylate alkyl ester copolymer with film-forming ability, which reduces the flexibility of the wings of flying pests when sprayed, causing them to lose their ability to fly, or forms a film that blocks the spiracles or trachea, suffocating the pests, thereby achieving an insect repellent effect. However, since insect repellents for spraying flying pests need to be adjusted to a suitable spray viscosity, the amount of polymer added as an effective ingredient in the insect repellent is substantially limited.

[0013] Patent document 2 describes spraying a composition containing a pesticide and an adjuvant onto insects. However, from the point of view of human safety, spraying a composition containing a pesticide as an insecticidal ingredient is not a preferred method.

[0014] For the reasons stated above, it is desirable to develop compositions that are safer for humans and the environment and have improved insecticidal efficacy for insect repellents that are sprayed on flying pests.

[0015] This invention relates to a composition and a spray for repelling flying pests. The composition is sprayed onto flying pests and is safe for human use and the environment, while also improving insecticidal efficacy.

[0016] The inventors have discovered that in a composition for repelling flying pests used as a spray, by containing a surfactant (A) comprising at least one of a salt of aliphatic alcohols having 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid (A1), and a mixture of polyoxyalkylene alkyl ethers and alkyl glycerol ethers (A2), the flying ability of flying pests can be reduced when the composition is sprayed onto them. Furthermore, it has been found that by containing a compound (B) selected from at least one organic acid and organic acid salt, safety for humans and the environment can be ensured, and insecticidal efficacy against flying pests can be improved.

[0017] Furthermore, in this invention, "reducing the flying ability of flying pests" means making flying pests unable to fly. Also, in this invention, "killing flying pests" means killing flying pests, rendering them completely immobile.

[0018] That is, the present invention relates to the following [1] and [2].

[0019] [1] A composition for repelling flying pests, which is used by spraying on flying pests.

[0020] This composition for repelling flying pests contains: a surfactant (A), a compound (B) selected from at least one of organic acids and organic acid salts, and water.

[0021] The surfactant (A) mentioned above comprises at least one of the following: a salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene ether (a1) and alkyl glycerol ether (a2).

[0022] [2] A spray for repelling flying pests, comprising a spray container and a composition for repelling flying pests as described in [1] filled in the spray container.

[0023] According to the present invention, a composition for repelling flying pests and a spray for repelling flying pests can be provided. The composition for repelling flying pests is sprayed onto flying pests and is highly safe for humans and the environment, while improving insecticidal efficacy.

[0024] [Composition for repelling flying pests]

[0025] The composition for repelling flying pests of the present invention (hereinafter also referred to as "the composition of the present invention") is sprayed onto flying pests for use, wherein it contains a surfactant (A) (hereinafter also referred to as "component (A)"), a compound (B) (hereinafter also referred to as "component (B)") selected from at least one of organic acids and organic acid salts, and water. The surfactant (A) comprises at least one salt (A1) (hereinafter also referred to as "component (A1)") selected from a salt of aliphatic alcohols having 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid, and a mixture (A2) (hereinafter also referred to as "component (A2)") of polyoxyalkylene alkyl ethers (a1) and alkyl glycerol ethers (a2).

[0026] The composition for repelling flying pests of the present invention contains a surfactant (A), which reduces the flying ability of flying pests by contacting their wings. Furthermore, by containing an organic acid or organic acid salt (B), it kills flying pests. In other words, by inhibiting the flight of flying pests, flying pests that are in flight or landing on walls or other surfaces fall to the ground, thus killing them and achieving the effect of repelling flying pests.

[0027] In this invention, the term "flying pest" refers to pests that fly close to humans or other animals and suck blood from their skin, pests that spread pathogens and bacteria while flying even without sucking blood, and pests whose flight itself causes discomfort to humans.

[0028] Specific examples of flying pests include: mosquitoes such as *Aedes sinensis*, *Culex pipiens tritaeniorhynchus*, *Aedes aegypti*, *Aedes albopictus*, *Aedes tangutica*, *Aedes gambiae*, and *Aedes pubescens*; midges such as *Chironoptera litura* and *Chironoptera redissima*; black flies such as *Gnaphalium affine*, *Gnaphalium fulvidraco*, and *Gnaphalium affineum*; houseflies such as *Homalomena spp.*, *Homalomena spp.*, *Flyes spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, *Fly spp.*, and *Fly spp.*

[0029] Among these, the composition for repelling flying pests of the present invention is particularly effective in repelling mosquitoes.

[0030] The reasons for achieving the effects of this invention are speculated as follows.

[0031] First, since the bodies of flying pests are hydrophobic, they would not normally get wet. However, the composition of the present invention contains components (A1) and / or (A2) with low surface tension and rapid adsorption at the solid-liquid interface, thus easily wetting and diffusing on the surface of the pest. Therefore, it is considered that wetting the body of the flying pest effectively inhibits its flight ability. Moreover, the composition of the present invention further contains a compound (B) with insecticidal function. It is considered that since the body of the flying pest is wetted by the action of (A1) and / or (A2), compound (B) can penetrate it efficiently, thereby improving the insecticidal activity against flying pests.

[0032] That is, the present invention effectively wets the bodies of flying pests and deprives them of their ability to fly by spraying them with a composition containing ingredients (A1) and / or (A2) and compound (B), thereby killing and repelling the flying pests.

[0033] Furthermore, the components (A1) and (A2) contained in the composition of the present invention, as well as the compound (B), have excellent safety for human health and the environment.

[0034] As described above, the flying pest repellent composition of the present invention uses components (A1) and / or (A2) that are safe for humans and the environment and can effectively wet the body of flying pests, and a compound (B) that can effectively kill flying pests as the effective ingredients for repelling flying pests. It can be made into a flying pest repellent composition that has a high repellency effect even if it does not contain the insecticidal ingredients of the prior art (which are of concern to human and environmental safety). Therefore, it has a high degree of safety for humans and the environment.

[0035] Furthermore, the flying pest repellent composition of the present invention can be applied not only to flying pests, but also to flying pests that have landed on walls or the ground.

[0036] The following is a detailed description of the composition for repelling flying pests according to the present invention.

[0037] <Ingredient (A): Surfactant>

[0038] The composition of the present invention contains at least one of the following as component (A): a salt of an aliphatic alcohol having 5 to 18 carbon atoms and a sulfosuccinic acid monoester or diester (A1), and a mixture of polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2) (A2).

[0039] The composition of the present invention, by comprising at least one selected from component (A1) and component (A2), has an excellent effect of easily wetting and spreading on the surface of pests, and has a greater effect on reducing the flight ability and the penetration effect of component (B) on flying pests.

[0040] (ingredient (A1))

[0041] The component (A1) is a salt of an aliphatic alcohol with 5 to 18 carbon atoms and a monoester or diester of sulfosuccinic acid, preferably a salt of a diester.

[0042] The aliphatic alcohol constituting component (A1) has 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and 18 or less, preferably 14 or less, more preferably 10 or less.

[0043] The salt in component (A1) is preferably an alkali metal salt, more preferably at least one selected from sodium and potassium salts, and even more preferably a sodium salt.

[0044] (Ingredient (A2))

[0045] Ingredient (A2) contains polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2).

[0046] As a polyoxyalkylene alkyl ether (a1), the preferred compound is one represented by the following general formula (1).

[0047] R 1 -O-(Y) m -H(1)

[0048] In equation (1), R 1 [Indicates alkyl group; Y represents oxyethylidene unit and / or oxypropylidene unit. m represents the average number of moles of Y added.]

[0049] In general formula (1), regarding the composition of R 1 The number of carbon atoms in the alkyl group is preferably 8 to 22 or less, more preferably 8 to 18 or less, and even more preferably 8 to 14 or less, from the viewpoint of effectively wetting the wings of flying pests and improving the straightness of the spray droplets of the composition to efficiently repel flying pests. The alkyl group can be any type of straight-chain alkyl or branched-chain alkyl, but from the viewpoint of effectively reducing surface tension and wetting the wings of flying pests, a straight-chain alkyl group is preferred.

[0050] Additionally, Y represents an oxyethylidene unit and / or an oxypropylene unit, preferably an oxyethylidene unit. m represents the average molar number of Y added, which is preferably 4 or more, more preferably 6 or more, from the viewpoint of improving the straightness of the spray droplets of the composition and efficiently repelling flying pests. Furthermore, from the viewpoint of excellent effect in wetting the wings of flying pests, this average molar number of Y added is preferably 30 or less, more preferably 20 or less, further preferably 15 or less, further preferably 12 or less, and even more preferably 10 or less.

[0051] The polyoxyalkylene ether (a1) is preferably polyoxyethylene lauryl ether, and more preferably polyoxyethylene lauryl ether with an average addition molar number of oxyethylene of 6 or more and 10 or less.

[0052] As an alkyl glycerol ether (a2), examples include alkyl glycerol ethers having an alkyl group having a preferred number of carbon atoms of 8 to 22 or less, more preferably 8 to 18 or less, and even more preferably 8 to 14 or less. The alkyl group can be any type of straight-chain alkyl or branched-chain alkyl. From the viewpoint of improving the straightness of the spray droplets of the composition and efficiently repelling flying pests, branched-chain alkyl is preferred.

[0053] Specific examples of alkyl glycerol ethers (a2) include: octyl glycerol ether, 2-ethylhexyl glycerol ether, nonyl glycerol ether, decyl glycerol ether, isodecyl glycerol ether, lauryl glycerol ether, tridecyl glycerol ether, myristyl glycerol ether, stearyl glycerol ether, isostearyl glycerol ether, etc. The compositions of the present invention may contain two or more of these as components (a2). Preferably, at least one selected from 2-ethylhexyl glycerol ether, decyl glycerol ether, isodecyl glycerol ether, and lauryl glycerol ether is selected; more preferably, at least one selected from 2-ethylhexyl glycerol ether and isodecyl glycerol ether is selected.

[0054] Regarding ingredient (A), one type can be used, or a combination of two or more types can be used.

[0055] Regarding the total content and individual content of components (A1) and (A2) in the composition of the present invention, from the viewpoint of excellent effect in wetting the wings of flying pests, it is preferably 0.05% by mass or more, more preferably 0.10% by mass or more, and even more preferably 0.15% by mass or more. From the viewpoint of suppressing stickiness and slipperiness caused by the sprayed composition adhering to the sprayed surface (hereinafter referred to as "suppression of stickiness and slipperiness"), it is preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, even more preferably 2.0% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1.2% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.8% by mass or less. There are no particular limitations on its application scenario; for example, in indoor use, it can suppress stickiness and slipperiness on floors, walls, etc.

[0056] Furthermore, regarding the respective contents of components (a1) and (a2) of the constituent component (A2), from the viewpoint of excellent effect in wetting the wings of flying pests, it is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.10% by mass or more, even more preferably 0.15% by mass or more. From the viewpoint of inhibiting stickiness and slipperiness, it is preferably 3.0% by mass or less, more preferably 2.0% by mass or less, even more preferably 1.0% by mass or less, even more preferably 0.5% by mass or less.

[0057] In the composition of the present invention, the mass ratio [(a1) / (a2)] of polyoxyalkylene alkyl ether (a1) to alkyl glycerol ether (a2) is preferably 0.1 or more, more preferably 0.5 or more, further preferably 1.0 or more, and even more preferably 2.0 or more from the viewpoint of improving the effect of wetting the wings of flying pests. From the same viewpoint, it is preferably 10 or less, more preferably 8.0 or less, even more preferably 6.0 or less, even more preferably 5.0 or less, and even more preferably 4.0 or less.

[0058] In this invention, surfactant (A) may further comprise surfactants other than components (A1) and (A2).

[0059] As a surfactant other than component (A1) and component (A2), from the viewpoint of safety to humans and the environment, it is preferable to include one or more selected from nonionic surfactants, anionic surfactants and cationic surfactants, and more preferably to include at least one selected from nonionic surfactants and anionic surfactants.

[0060] Specific examples of nonionic surfactants include at least one selected from polyoxyalkylene sorbitan fatty acid esters, alkyl glucosides, polyglycerol fatty acid esters, polyoxyethylene hydrogenated castor oil, alkylamine oxides, and polyoxyethylene modified silicones.

[0061] Specific examples of anionic surfactants include at least one selected from alkylbenzene sulfonates, alkyl ether sulfates or alkenyl ether sulfates, alkyl sulfates or alkenyl sulfates, alkyl sulfonates, saturated or unsaturated fatty acid salts, alkyl ether carboxylates or alkenyl ether carboxylates, α-sulfonyl fatty acid salts, N-acyl amino acids, phosphate monoesters or phosphate diesters.

[0062] Counterions for anionic surfactants include: alkali metal ions such as sodium and potassium ions; alkaline earth metal ions such as calcium and magnesium ions; ammonium ions; and alkanoic ammonium groups having 1 to 3 carbon atoms in 2 or 3 groups (e.g., monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.).

[0063] Specific examples of cationic surfactants include at least one selected from alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylamide alkyltrimethylammonium salts, benzylamine chloride, alkylpyridinium salts, alkyldimethylamines and their salts, alkoxyalkyldimethylamines and their salts, alkylamide alkyldimethylamines and their salts, diethanolamine monoalkyl esters and their salts, triethanolamine monoalkyl esters and their salts, and triethanolamine dialkyl esters and their salts.

[0064] Furthermore, regarding the content of surfactant (A) in the composition of the present invention, from the viewpoint of its excellent effect in wetting the wings of flying pests, it is preferably 0.05% by mass or more, more preferably 0.10% by mass or more, and even more preferably 0.15% by mass or more. From the viewpoint of suppressing the stickiness or slipperiness of the composition, it is preferably 5.0% by mass or less, more preferably 4.0% by mass or less, and even more preferably 3.0% by mass or less.

[0065] Furthermore, regarding the content of surfactant (A) in the composition of the present invention, from the viewpoint of suppressing stickiness and slipperiness, it is preferably 2.0% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.2% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.8% by mass or less. There are no particular limitations on the application scenario; for example, in indoor use, it can suppress stickiness and slipperiness on floors, walls, etc., and improve operability.

[0066] Furthermore, regarding the total content of components (A1) and (A2) in the composition of the present invention, from the viewpoint of excellent effect in wetting the wings of flying pests, when the total amount of surfactant (A) contained in the composition of the present invention is set to 100 parts by mass, it is preferably 20 parts by mass or more, more preferably 30 parts by mass or more, even more preferably 40 parts by mass or more, even more preferably 50 parts by mass or more, and preferably 100 parts by mass or less.

[0067] Furthermore, regarding the content of components (A1) and (A2) in the composition, when they exist in a dissociated state in the composition, the amount is considered as the amount of the dissociated form. That is, if it is sodium dioctyl sulfosuccinate, the amount is considered as the amount of dioctyl sulfosuccinic acid.

[0068] <Ingredient (B): Organic acid or organic acid salt>

[0069] The compositions of the present invention contain at least one compound selected from organic acids and organic acid salts as component (B). By including component (B), the compositions of the present invention can improve their insecticidal activity against flying pests.

[0070] As a component (B), for example, it may contain at least one selected from benzoic acid, lactic acid, sorbic acid, tartaric acid, fumaric acid, malic acid, citric acid, and salts thereof.

[0071] From the viewpoint of further improving insecticidal activity, the salt in the organic acid salt is preferably an alkali metal salt, more preferably at least one selected from sodium and potassium salts, and even more preferably a sodium salt.

[0072] Regarding the content of component (B) in the composition of the present invention, from the viewpoint of further improving insecticidal activity, it is preferably 0.03% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.10% by mass or more, even more preferably 0.15% by mass or more, and preferably 5.0% by mass or less, more preferably 3.0% by mass or less, even more preferably 2.0% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.5% by mass or less.

[0073] In this specification, the content (mass%) of organic acid salts is expressed as the mass of the organic acids constituting the organic acid salts.

[0074] In the composition of the present invention, the mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.1 or more, more preferably 0.2 or more, further preferably 0.3 or more, and even more preferably 0.4 or more, from the viewpoint of further improving insecticidal activity. It is preferably 20 or less, more preferably 15 or less, even more preferably 10 or less, even more preferably 5.0 or less, and even more preferably 2.0 or less.

[0075] <Water>

[0076] The composition for repelling flying pests of the present invention contains water as a medium for dissolving or dispersing surfactant (A) and compound (B), which are effective ingredients for repelling flying pests.

[0077] Regarding the water content in the composition, from the viewpoint of safety for human health and the environment, and from the viewpoint of easily controlling the spray droplets of the composition to a suitable spray size, it is preferably 80% by mass or more, more preferably 85% by mass or more, even more preferably 88% by mass or more, even more preferably 90% by mass or more, and preferably 99.92% by mass or less, more preferably 99% by mass or less, even more preferably 97% by mass or less, and even more preferably 95% by mass or less.

[0078] <Ingredient (C): Alcohol>

[0079] From the viewpoint of improving the stability or appearance of the solution, the composition for repelling flying pests of the present invention preferably further comprises an alcohol (C) having 6 or fewer carbon atoms (hereinafter also referred to as "component (C)").

[0080] As component (C), for example, at least one alcohol selected from methanol, ethanol, 1-propanol, 2-propanol, butanol, having 1 to 5 carbon atoms, and diols and triols having 6 or fewer carbon atoms, such as 1,3-butanediol, glycerol, ethylene glycol, and propylene glycol, may be used. Among these, at least one selected from ethanol and 2-propanol is preferred, and ethanol is more preferred.

[0081] When the flying pest repellent composition of the present invention contains component (C), the content of component (C) in the composition is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, even more preferably 2.0% by mass or more, even more preferably 2.5% by mass or more, even more preferably 4.0% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 8.0% by mass or less, from the viewpoint of reducing the odor of alcohol and improving the safety during storage, transportation and use.

[0082] <Other Ingredients>

[0083] The composition for repelling flying pests of the present invention may also contain other ingredients besides those described above, within a range that does not impair the effectiveness of the invention, such as preservatives, colorants, fragrances, pH adjusters, etc.

[0084] However, from the viewpoint of obtaining the effects of the present invention, the content of the components other than surfactant (A), compound (B), water, and alcohol (C) in the composition for repelling flying pests is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 5% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0085] From the viewpoint of safety for humans and the environment, the composition for repelling flying pests of the present invention is preferably free of insecticidal ingredients other than component (B). This is because the composition for repelling flying pests of the present invention uses a surfactant (A) that is highly safe for humans and the environment and can effectively wet the wings of flying pests, and a compound (B) that can effectively kill flying pests as the effective ingredients for repelling flying pests. This allows for the creation of a composition that, even without containing insecticidal ingredients other than component (B), has a high efficacy in repelling flying pests.

[0086] Regarding the so-called "insecticides" mentioned here, examples include: pyrethroid insecticides, organophosphate insecticides, carbamate insecticides, insecticides described in groups 1 to 32 of IRAC MoA Classification Version 9.4 (Mar 2020), and insecticides described in paragraph 0049 of International Publication No. 2018 / 079565 (but excluding ingredients equivalent to compound (B)).

[0087] Examples of pyrethroid insecticides include: Metformin, dl,d-T80-Yalinin, pyrethroid, d-T80-pyrethroid, d,d-T80-Puyalinin, d,d-T98-Puyalinin, d-T80-Lemninin, Bayfenn, Eiprin, Cyphennol, d,dT-Cyphennol, Ebifenn, Bafenn, Phenylephrine, Efennol, Phenylephrine, Efennol, Pyrethroid, etc.

[0088] In addition to pyrethroid insecticides, other insecticidal ingredients include, for example: organophosphate insecticides such as pyrethroids and malathion; carbamate insecticides such as propoxur and carbaryl; acaricides such as trichlorfon, methyl chlorpyrifos, and thiamethoxam; and newer nicotine insecticides such as imidacloprid, dinotefuran, and nicotinoids.

[0089] Furthermore, the phrase "not containing insecticidal ingredients other than component (B)" means that the content of insecticidal ingredients other than component (B) in the composition for repelling flying pests is less than 1% by mass, preferably 0.1% by mass or less, more preferably 0.01% by mass or less, even more preferably 0.001% by mass or less, and even more preferably substantially free of insecticidal ingredients other than component (B).

[0090] From the viewpoint of safety for human health and the environment, the composition for repelling flying pests of the present invention is preferably free of fungicides. As a fungicide, examples include amphoteric surfactants with bactericidal effects. "Free of fungicides" means that the fungicide content in the composition for repelling flying pests is less than 0.1% by mass, preferably less than 0.05% by mass, more preferably less than 0.01% by mass, further preferably less than 0.005% by mass, and even more preferably substantially free of fungicides.

[0091] From the viewpoints of easily adjusting the viscosity of the composition for repelling flying pests to a suitable spray size, easily controlling the spray droplets of the composition to a suitable spray particle size, and suppressing stickiness caused by the sprayed composition adhering to the sprayed surface when using the composition for repelling flying pests, the content of polymeric compounds in the composition for repelling flying pests of the present invention is preferably low. For example, the content of (meth)acrylate alkyl copolymer in the composition for repelling flying pests is preferably less than 0.5% by mass, more preferably less than 0.1% by mass, further preferably 0.07% by mass or less, and even more preferably 0.05% by mass or less.

[0092] The aforementioned (meth)acrylate alkyl ester copolymers refer to polymeric compounds obtained by copolymerizing (meth)acrylate alkyl esters, especially film-forming (meth)acrylate alkyl ester copolymers.

[0093] As a film-forming alkyl methacrylate copolymer, it can be any of the following: cationic polymer, anionic polymer, nonionic polymer, and amphoteric polymer. Examples of amphoteric polymers among film-forming alkyl methacrylate copolymers include: N-methacryloyloxyethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-alkyl methacrylate copolymers (Yukaformer 202, Yukaformer 104D, Yukaformer AMPHOSET, Yukaformer R205S, Yukaformer SM, etc. manufactured by Mitsubishi Chemical Corporation), octyl acrylate-hydroxypropyl acrylate-butylaminoethyl methacrylate copolymer, and N-methacryloyloxyethyl N,N-dimethylaminoethyl-α-N-methylcarboxybetaine-alkyl methacrylate copolymer.

[0094] In the flying pest repellent composition of the present invention, if the content of the film-forming (meth)acrylate alkyl copolymer is low, the viscosity increase of the composition is suppressed. Therefore, when using a trigger spray container as the spray container, the trigger pull speed does not decrease and remains stable. If the trigger pull speed is fast, the pressure applied to the droplets becomes higher, thus the spray droplets of the composition are easily reduced in size. In addition, by stabilizing the trigger pull speed, when the liquid film of the composition disperses into droplets using rotational force, the spray droplets are easily reduced in size, and particle size control is also easier.

[0095] Furthermore, when the composition for repelling flying pests of the present invention is filled into an aerosol container filled with a spray agent and used, the content of each component in the composition of the present invention refers to the mass of the total amount excluding the spray agent.

[0096] There are no particular limitations on the manufacturing method of the composition for repelling flying pests according to the present invention. For example, it can be manufactured by mixing surfactant (A), compound (B), water, and alcohol (C) used as needed, and other components using a known stirring device.

[0097] Regarding the pH value of the flying pest repellent composition of the present invention at 25°C, from the viewpoint of improving insecticidal efficacy and safety to humans and the environment, it is preferably 3 or more, more preferably 3.5 or more, further preferably 4 or more, and even more preferably 4.5 or more. From the same viewpoint, it is preferably 10 or less, more preferably 8 or less, even more preferably 7 or less, and even more preferably 6 or less.

[0098] The pH value of the composition for repelling flying pests of the present invention can be adjusted by surfactant (A) or compound (B), pH adjuster, etc.

[0099] Regarding the surface tension of the composition for repelling flying pests according to the present invention at 25°C, from the viewpoint of efficiently repelling flying pests, it is preferably 23.5 mN / m or more, more preferably 24.0 mN / m or more, further preferably 24.5 mN / m or more, and even more preferably 25.0 mN / m or more. Furthermore, from the viewpoint of effectively wetting the wings of flying pests, reducing their flight ability, and improving the repellency effect, this surface tension is preferably 45.0 mN / m or less, more preferably 40.0 mN / m or less, even more preferably 33.0 mN / m or less, even more preferably 31.0 mN / m or less, and even more preferably 29.0 mN / m or less. The surface tension of the composition is measured at 25°C using the Wilhelmy method. Specifically, it can be measured using the method described below.

[0100] (Methods for measuring surface tension)

[0101] The composition was used as the test sample and injected into a glass petri dish with a diameter of 6.4 cm and a depth of 3.8 cm. After removing air bubbles from the water surface, the sample was allowed to stand for at least 30 minutes before measurement. A surface tension meter K100 (made by KRUSS) was used in this measurement. A platinum plate was immersed in the test sample for 1 mm, and the measurement value 10 minutes after immersion was taken as the surface tension value.

[0102] [Spray for repelling flying pests]

[0103] The flying pest repellent spray of the present invention comprises a spray container and the flying pest repellent composition of the present invention filled in the spray container.

[0104] <Spray container>

[0105] As for the spray container used in the flying pest repellent spray of the present invention, there are no particular limitations as long as it is a spray container that can be filled with the above-mentioned flying pest repellent composition and sprayed onto flying pests. Examples of such spray containers include: trigger spray containers and other extrusion spray containers; aerosol containers filled with a propellant, etc.

[0106] There are no particular restrictions on the capacity of the spray container, but from the perspective of spraying towards flying pests, it can be, for example, between 50 mL and 500 mL.

[0107] Regarding the nozzle diameter of the spray container, from the viewpoint that the spray droplets will not scatter horizontally or vertically and can easily travel straight to reach flying pests efficiently, a diameter of 0.1 mm or more is preferred, more preferably 0.2 mm or more, and even more preferably 0.3 mm or more. From the same viewpoint, a diameter of 1.5 mm or less is preferred, more preferably 1.2 mm or less, and even more preferably 1.0 mm or less. Furthermore, the term "nozzle diameter of the spray container" refers to the maximum diameter of the inner diameter of the nozzle tip of the spray container. There is no particular limitation on the shape of the nozzle, but a circular or elliptical shape is preferred.

[0108] From the viewpoint of easily controlling the average particle size of the spray droplets of the composition within a specific range, an extrusion spray container is preferred, a trigger spray container is more preferred, and a trigger spray container with an outlet diameter within the aforementioned range is even more preferred.

[0109] From the viewpoint that the spray droplets do not scatter horizontally or vertically, but rather travel straight and efficiently to reach flying pests, a pressure-accumulating trigger spray container is even more preferable among trigger spray containers. Generally, a pressure-accumulating spray container has a structure in which a piston sliding relative to a cylinder housed inside the container causes liquid in the cylinder, exceeding a certain pressure, to be sprayed from the nozzle. That is, liquid is only sprayed out of the container when the hydraulic pressure inside the cylinder exceeds a certain level, thus offering advantages in controlling the size of the sprayed droplets.

[0110] As a pressurized trigger spray container, for example, the container described in Japanese Patent Application Publication No. 2017-226474 can be cited.

[0111] In addition, trigger spray containers may have a bubble-forming mechanism. From the viewpoint that the spray droplets will not scatter up, down, left, or right and can easily travel straight to reach flying pests efficiently, it is preferable that they do not have a bubble-forming mechanism.

[0112] Here, the term "bubble-forming mechanism" specifically refers to the mechanism described in (1) or (2) below.

[0113] (1) A mechanism in which the nozzle of the container is arranged perpendicular to the spraying direction, has a plate-shaped body or a mesh barrier with protrusions, and mixes with air to form bubbles by causing the liquid sprayed in a mist to collide with the plate-shaped body or the barrier.

[0114] (2) A mechanism that has an external gas inlet near the nozzle of the container, in which the liquid sprayed out in a mist mixes with the introduced external gas inside the container and foams by colliding with the inner wall of the cylindrical part, and is sprayed out from the nozzle in a bubble shape.

[0115] As specific examples of (1) above, Figure 15 of Japanese Patent Application Publication No. 2003-112090, Japanese Patent Application Publication No. 2011-251218, and Japanese Patent Application Publication No. 2006-320845 can be cited. Figure 2 The institutions recorded in it, etc.

[0116] As a specific example of (2) above, Japanese Patent Application Publication No. 2007-167719 can be cited. Figure 2 Japanese Patent Application Publication No. 2006-150279 Figure 2 Japanese Patent Application Publication No. 52-116919 Figure 2 The institutions recorded in it, etc.

[0117] The term "trigger spray container without a bubble forming mechanism" refers to a trigger spray container that sprays liquid as droplets from the nozzle outlet to the outside of the container without passing through the aforementioned bubble forming mechanism. Preferably, it refers to a trigger spray container that sprays liquid directly from the nozzle outlet to the outside of the container in the form of droplets.

[0118] The preferred appearance of the spray droplets ejected from a trigger-type spray container without a bubble-forming mechanism is as follows: at room temperature (25°C), after spraying once at a horizontal distance of 30 cm from the nozzle of the container, no bubbles larger than 100 μm are visible after 1 minute. More preferably, after spraying once at a horizontal distance of 30 cm from the nozzle of the container, no bubbles larger than 100 μm are visible after 0.5 minutes.

[0119] Regarding the spray volume of the composition for repelling flying pests when using a trigger spray container, from the viewpoint of efficiently repelling flying pests by delivering a sufficient amount of spray droplets of the composition to them, the spray volume per trigger pull is preferably 0.2g / puff, more preferably 0.5g / puff, and even more preferably 0.7g / puff. Furthermore, from the viewpoint of suppressing stickiness and slipperiness when using the spray for repelling flying pests, the volume is preferably 2.0g / puff or less, more preferably 1.5g / puff or less, and even more preferably 1.2g / puff or less.

[0120] On the other hand, regarding the spray volume of the composition for repelling flying pests when using an aerosol container, from the viewpoint of efficiently repelling flying pests by delivering a sufficient amount of spray droplets of the composition to the flying pests, the spray volume per second is preferably 0.2g or more, more preferably 0.5g or more, and even more preferably 0.7g or more. Furthermore, from the viewpoint of suppressing stickiness caused by the sprayed composition adhering to the sprayed surface when using the spray for repelling flying pests, it is preferably 2.0g or less, more preferably 1.5g or less, and even more preferably 1.2g or less.

[0121] [Example]

[0122] The present invention will now be described through embodiments, but the invention is not limited to the scope of these embodiments. Furthermore, in these embodiments, various evaluations and measurements were performed using the following methods.

[0123] (Evaluation of insecticidal activity against flying pests)

[0124] Regarding the evaluation of its insecticidal efficacy against flying pests, the following methods were used. Figure 1 and Figure 2 Please provide an explanation. Figure 1 This is a schematic diagram of a frame (1) containing mosquitoes, used in the evaluation of mosquito insecticidal activity. Figure 2 This is a schematic diagram showing the spraying of the composition for repelling flying pests inside the frame (1) from the side view of the frame (1).

[0125] like Figure 1 As shown, a mosquito (2) (a female adult of Aedes albopictus) is placed in a plastic frame (1) with an aspect ratio of 6cm×6cm and a depth of 4cm. The front surface (11) and back surface (12) of the frame (1) are covered with a sieve (3) with a wire diameter of 0.1mm and a mesh size of 1mm to seal the mosquito inside.

[0126] Next, as Figure 2As shown, the sprayer fills the spray container with the composition of each example in a fixed manner, with the front end (i.e., the spray outlet) (41) of the spray container (4) reaching a position 30 cm away from the front surface (11) of the frame (1) containing the mosquito (2), and the trigger is pulled once with a roughly fixed pressure facing the frame (1) to spray the composition. Figure 2 (5) is the composition being sprayed. The time from the start to the end of triggering is 0.38 seconds, and the time from the start to the end of liquid spraying is 0.22 seconds.

[0127] The condition of mosquitoes (2) was observed and recorded after 10, 20, 30, 60, and 180 minutes. The percentage of mosquitoes killed was calculated by conducting more than 6 independent experiments.

[0128] (Review of stickiness and slipperiness)

[0129] Apply 20 μL of the flying pest repellent composition to the tile surface, spreading it in a 3 cm diameter circle using the bottom of the glass vial, and allow it to air dry. After 1 hour, once the composition is confirmed to be dry, evaluate its stickiness and smoothness. Regarding stickiness, touch the coated surface 5 times with the pad of your right index finger and evaluate according to the following criteria. Regarding smoothness, trace the coated surface in one direction with your right index finger and evaluate according to the following criteria.

[0130] <Evaluation Criteria for Stickiness>

[0131] -3: Completely non-sticky;

[0132] -2: Not too sticky;

[0133] -1: Slightly less sticky;

[0134] 0: It can be described as neither sticky nor non-sticky;

[0135] +1: Slightly sticky;

[0136] +2: Quite sticky;

[0137] +3: Very sticky.

[0138] <Evaluation Criteria for Slippery Texture>

[0139] -3: Not slippery at all;

[0140] -2: Not very slippery;

[0141] -1: Slightly less slippery;

[0142] 0: It can be described as neither slippery nor not slippery;

[0143] +1: Slightly slippery;

[0144] +2: Quite slippery;

[0145] +3: Very slippery.

[0146] (Appearance evaluation)

[0147] The appearance of the composition for repelling flying pests at 25.0°C, 27.5°C and 30.0°C was evaluated according to the following criteria.

[0148] A: Uniformly transparent;

[0149] B: Slightly turbid;

[0150] C: Leukorrhea.

[0151] (pH measurement)

[0152] The pH value of the compositions for repelling flying pests in the examples and comparative examples was measured at 25°C using a pH meter (electrode: 6367-10D (manufactured by Horiba Manufacturing Co., Ltd.)).

[0153] (Measurement of surface tension)

[0154] The compositions for repelling flying pests from the examples and comparative examples were used as test samples. These samples were injected into glass petri dishes with a diameter of 6.4 cm and a depth of 3.8 cm. After removing air bubbles from the surface, the samples were allowed to stand for at least 30 minutes before measurement at 25°C. A K100 (made by KRUSS) surface tension meter was used. A platinum plate was immersed in the test sample for 1 mm, and the measurement value 10 minutes after immersion was taken as the surface tension value.

[0155] In the examples and comparative examples, the following components were used as organic acids, organic acid salts, surfactants and pH adjusters.

[0156] (Organic acids)

[0157] Benzoic acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0158] Lactic acid (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.)

[0159] Tartaric acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0160] Fumaric acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0161] Malic acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0162] Citric acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0163] (organic acid salts)

[0164] Sodium benzoate (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.)

[0165] Potassium benzoate (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.)

[0166] (surfactant)

[0167] Sodium dioctyl sulfosuccinate (manufactured by Toho Chemical Industry Co., Ltd., product name: Airrol CT-1K; manufactured by Sanyo Chemical Industry Co., Ltd., product name: Sanmorin OT-70S)

[0168] Polyoxyethylene (9) lauryl ether (manufactured by Kao Corporation, product name: Emulgen 109P)

[0169] 2-Ethylhexylglycerin ether (manufactured by Kao Corporation, product name: Penetol GE-EH)

[0170] Sodium N-cocoyl-L-glutamate (manufactured by Ajinomoto Co., Ltd., product name: Amisoft CS-11(F))

[0171] Sodium polyoxyethylene lauryl ether sulfate (manufactured by Kao Corporation, product name: Emal270J)

[0172] (pH adjuster)

[0173] Sodium hydroxide

[0174] sulfuric acid

[0175] Examples 1-24 and Comparative Examples 1-5 (Preparation and evaluation of compositions for repelling flying pests)

[0176] Prepare the organic acids, organic acid salts, and surfactants shown in Tables 1-4, and trigger spray containers (trigger type: accumulator, capacity 370mL, nozzle diameter: 0.8mm, spray volume: 0.9g / spray).

[0177] The components used in the composition for repelling flying pests were prepared according to the compositions shown in Tables 1-4. During preparation, each component was dissolved in a homogeneous manner using a stirrer. The amounts listed in Tables 1-4 are the amounts of the active ingredient (mass %). As mentioned above, the amount of surfactant (A) listed in each table is the amount of the dissociated form. Furthermore, the amount of the undissociated nonionic surfactant in the composition is the formulation amount. Additionally, the amounts of sodium polyoxyethylene lauryl ether sulfate and sodium N-cocoyl-L-glutamate are the formulation amounts, not the amounts of the dissociated form. Furthermore, the content (mass %) of the organic acid salt is converted to the mass % of the organic acid constituting the organic acid salt.

[0178] The composition is filled into a spray container to prepare a spray for repelling flying pests.

[0179] The obtained spray for controlling flying pests was evaluated using the methods described above. The evaluation results are shown in Tables 1-4. Furthermore, the evaluation of operability (stickiness and slipperiness) was conducted only for Examples 6 and 17-19. Additionally, the evaluation of appearance was conducted only for Examples 6 and 20-24.

[0180]

[0181] [Table 2]

[0182] Table 2

[0183]

[0184] [Table 3]

[0185] Table 3

[0186]

[0187] [Table 4]

[0188] Table 4

[0189]

[0190] As shown in Tables 1-4, the flying pest repellent composition of the present invention exhibits excellent insecticidal effect against mosquitoes, which are flying pests. Furthermore, the flying pest repellent composition of Comparative Example 5 was applied in layers and unevenly, therefore it could not be evaluated.

[0191] [Industry availability]

[0192] According to the present invention, a composition for repelling flying pests and a spray for repelling flying pests can be obtained. The composition for repelling flying pests is sprayed onto flying pests and is safe for humans and the environment, and has improved insecticidal efficacy.

[0193] [Symbol Explanation]

[0194] 1: Frame;

[0195] 11: Front surface of the frame;

[0196] 12: The back surface of the frame;

[0197] 2: Mosquitoes;

[0198] 3: Screen;

[0199] 4: Spray container;

[0200] 41: The front end (spray outlet) of the spray nozzle of the spray container;

[0201] 5: A spray composition for repelling flying pests.

Claims

1. A composition for repelling flying pests, wherein, This composition for repelling flying pests is used by spraying it onto the flying pests. This composition for repelling flying pests contains: a surfactant (A), a compound (B) selected from at least one of organic acids and organic acid salts, and water. The surfactant (A) comprises at least one of the following: a salt (A1) of an aliphatic alcohol having 7 to 10 carbon atoms and a diester of sulfosuccinic acid; a polyoxyalkylene alkyl ether (a1) having 8 to 18 carbon atoms and an average molar number of oxyethylidene of 4 to 20; and an alkyl glycerol ether (a2) having 8 to 22 carbon atoms. The compound (B) is selected from at least one of benzoic acid, lactic acid, tartaric acid, fumaric acid, malic acid, citric acid, and benzoate. The content of the insecticidal ingredients other than compound (B) is less than 0.1% by mass. The surface tension of this composition for repelling flying pests is between 23.5 mN / m and 45.0 mN / m at 25°C.

2. The composition for repelling flying pests as described in claim 1, wherein, The content of the surfactant (A) is more than 0.05% by mass and less than 5.0% by mass.

3. The composition for repelling flying pests as described in claim 1, wherein, The content of the surfactant (A) is more than 0.10% by mass and less than 2.0% by mass.

4. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The content of compound (B) is 0.03% by mass or more.

5. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The content of compound (B) is more than 0.15% by mass and less than 5.0% by mass.

6. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The mass ratio (A) / (B) of the surfactant (A) to the compound (B) is more than 0.1 and less than 20.

7. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The mass ratio (A) / (B) of the surfactant (A) to the compound (B) is 0.4 or more and 5.0 or less.

8. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The composition for repelling flying pests has a pH value between 3 and 8 at 25°C.

9. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The surface tension of this composition for repelling flying pests is between 24.0 mN / m and 45.0 mN / m at 25°C.

10. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The salt (A1) is selected from at least one of sodium and potassium salts.

11. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, It further includes alcohols (C) with 6 or fewer carbon atoms.

12. The composition for repelling flying pests as described in claim 11, wherein, The alcohol (C) is selected from at least one of ethanol and 2-propanol.

13. The composition for repelling flying pests as described in claim 11, wherein, The content of the alcohol (C) is 1.0% by mass or more.

14. The composition for repelling flying pests as described in claim 11, wherein, The alcohol (C) is ethanol. The ethanol content is 1.0% by mass or more and 8.0% by mass or less.

15. The composition for repelling flying pests as described in any one of claims 1 to 3, wherein, The water content is above 80% by mass and below 99.92% by mass.

16. A spray for repelling flying pests, wherein, The spray for repelling flying pests comprises a spray container and a composition for repelling flying pests according to any one of claims 1 to 15 filled in the spray container.

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