Combination for repelling flying pests

Abstract

The present invention comprises [1] a composition for repelling flying pests, which is sprayed onto flying pests and used by the user, and contains 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 salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a mono- 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, which comprises 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. Prior Technology

[0002] Pests such as mosquitoes and flies are vectors for pathogens that can cause infectious diseases in humans and other animals, or cause dermatitis. In particular, some mosquitoes are highly harmful pests from a hygienic perspective because they transmit pathogens such as dengue fever, Zika fever, yellow fever, encephalitis, and malaria. Previously, insecticides were typically sprayed to protect the body from these flying pests.

[0003] However, there are concerns about the safety of the insecticidal ingredients in insecticides for humans. In particular, there is a desire to use insecticides with high safety profiles for young children who are easily bitten by mosquitoes. Furthermore, previous research primarily focused on preventing insect bites outdoors, but recent studies have shown that even indoors, the frequency of mosquito bites is the same or even higher than outdoors. Therefore, it is hoped that recommendations can be made to protect the body from flying pests even indoors.

[0004] Regarding methods for capturing and repelling flying pests without using insecticidal ingredients, for example, Japanese Patent Application Publication 2012-97004 (Patent Document 1) discloses that an insect repellent and an insect repellent preparation containing an aqueous liquid with a coating-forming ability of an alkyl methacrylate copolymer and a surfactant can achieve the effect of repelling pests even without containing insecticidal ingredients. 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

[0005] This invention relates to a composition for repelling flying pests, which is sprayed onto flying pests and used by the user. Contains a surfactant (A), a compound (B) selected from at least one of organic acids and organic acid salts, and water. The surfactant (A) mentioned above comprises at least one of a salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a mono- or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene alkyl ether (a1) and alkylglycerol ether (a2). Simple Explanation of the Diagram

[0006] Figure 1 is an illustration of the evaluation method for the insecticidal properties of flying pests. It is a planar schematic diagram with a frame (1) containing the mosquitoes used in the evaluation. Figure 2 is an explanatory diagram of the evaluation method of 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). Implementation

[0007] Patent Document 1 describes an insect repellent that, by containing a (meth)acrylate alkyl ester copolymer with film-forming ability, reduces the flexibility of the wings of flying pests when sprayed, causing them to lose their ability to fly, or forms a membrane that blocks the spiracles or trachea, suffocating the pests, thereby achieving an insect repellent effect. However, since insect repellents sprayed on flying pests need to be adjusted to a suitable spray viscosity, the amount of polymer added as the active ingredient in the insect repellent is substantially limited. 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 insecticide is not a better method. Based on the above, among insect repellents for flying pests, we seek compositions that offer higher safety for humans and the environment, while also enhancing insecticidal efficacy.

[0008] This invention relates to a composition and a spray for repelling flying pests. The composition is sprayed onto flying pests and is safer for humans and the environment, while also improving insecticidal efficacy.

[0009] The inventors have discovered that in a composition for spraying flying pests, the presence of a surfactant (A) comprising at least one of a salt of an aliphatic alcohol having 5 to 18 carbon atoms and a mono- or diester of sulfosuccinic acid (A1), and a mixture of polyoxyalkylene alkyl ethers and alkyl glycerol ethers (A2) can reduce the flying ability of flying pests when sprayed. Furthermore, it has been found that the presence of a compound (B) comprising at least one of organic acids and organic acid salts in the composition ensures safety for humans and the environment and enhances insecticidal activity against flying pests. Furthermore, in this invention, "reducing the flying ability of flying pests" means that the flying pests become unable to fly. Also, in this invention, "killing flying pests" means killing the flying pests, rendering them completely incapable of movement. That is, the present invention relates to the following [1] and [2]. [1] A composition for repelling flying pests, which is sprayed onto flying pests and used by the user, and Contains a surfactant (A), a compound (B) selected from at least one of organic acids and organic acid salts, and water. The surfactant (A) mentioned above comprises at least one of a salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a mono- or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene alkyl ether (a1) and alkylglycerol ether (a2). [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.

[0010] According to the present invention, a composition for repelling flying pests and a spray for repelling flying pests are provided. The composition for repelling flying pests is sprayed onto flying pests and is safer for humans and the environment, while having enhanced insecticidal properties.

[0011] [Composition for repelling flying pests] 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 and is used by the user. It contains a surfactant (A) (hereinafter, also referred to as "ingredient (A)"), a compound (B) (hereinafter, also referred to as "ingredient (B)") selected from at least one organic acid and organic acid salt, and water. The surfactant (A) includes at least one salt (A1) (hereinafter, also referred to as "ingredient (A1)") selected from aliphatic alcohols having 5 to 18 carbon atoms and mono- or diesters of sulfosuccinic acid, and a mixture (A2) (hereinafter, also referred to as "ingredient (A2)") of polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2). The composition for repelling flying pests of this 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, those that are in flight or landing on walls or other surfaces fall to the ground, killing them and achieving the effect of repelling flying pests.

[0012] In this invention, "flying pests" refers to pests that fly close to humans and other animals to 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. Specific examples of flying pests include: mosquitoes such as *Anopheles sinensis*, *Culex tritaeniorhynchus*, *Aedes aegypti*, *Culex taeniorhynchus*, *Aedes albopictus*, *Aedes dongxiang*, *Anopheles gambiae*, and *Anopheles skrzyhes*; midges such as *Chironoptera dorsalis* and *Chironoptera redissima*; black flies such as *Twinnia japonensis* Rubtsov, *Gnaphalium affine*, and *Gnaphalium affine*; flies such as houseflies, carrion flies, summer maggots, blowflies, flesh flies, gray ground flies, onion flies, fruit flies, butterfly flies, tsetse flies, and stinging flies; horseflies such as *Tabernaeidae*, *Hippophae rhamnoides*, and *Tabernaeidae fasciata*; midges such as *Culex japonicus*, *Culex sulphurae*, and *Culex arakawa*; and wasps such as yellow hornets, dark yellow long-legged wasps, and honeybees. Of these, the composition for repelling flying pests of the present invention is particularly effective in repelling mosquitoes.

[0013] The reasons for achieving the effects of this invention are speculated as follows. First, since the bodies of flying pests are hydrophobic, they would not normally get wet. However, the composition of this invention contains components (A1) and / or (A2) with low surface tension and rapid adsorption at the solid-liquid interface, thus easily wetting and diffusing onto the surface of the pest. Therefore, it is considered to be highly effective in inhibiting the flight ability of flying pests by wetting their bodies. Furthermore, the composition of this invention further contains a compound (B) with insecticidal function. It is believed that compound (B) can efficiently penetrate the flying pest by wetting its body due to the action of (A1) and / or (A2), thereby enhancing its insecticidal activity against flying pests. That is, the present invention effectively wets the bodies of flying pests and deprives them of their ability to fly by spraying a flying pest repellent composition containing ingredients (A1) and / or (A2) and compound (B) onto the flying pests, thereby killing and repelling the flying pests. Furthermore, the components (A1) and (A2) and compound (B) contained in the composition of the present invention have excellent safety for human health and the environment. 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 active ingredients for repelling flying pests. It can be made into a flying pest repellent composition with a higher repellency effect even if it does not contain previous insecticidal ingredients that are of concern to human and environmental safety, thus having higher safety for human and environmental use. Furthermore, the composition for repelling flying pests 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.

[0014] The following is a detailed description of the composition for repelling flying pests according to the present invention.

[0015] <Ingredient (A): Surfactant> The composition of the present invention contains at least one of the following as component (A): a salt of an aliphatic alcohol having 5 or more carbon atoms and a sulfosuccinic acid monoester or diester (A1), and a mixture of polyoxyalkylene alkyl ether (a1) and alkylglycerol ether (a2) (A2). The composition of the present invention, by comprising at least one of components (A1) and (A2), has an excellent effect of easily wetting and spreading on the surface of pests, and has a greater effect on reducing the ability of flying pests and increasing the penetration effect of component (B) on flying pests.

[0016] (Ingredients (A1)) Component (A1) is a salt of aliphatic alcohol with 5 to 18 carbon atoms and monoester and / or diester of sulfosuccinic acid, preferably a salt of diester. The aliphatic alcohol in the constituent component (A1) has 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and preferably 18 or less, preferably 14 or less, more preferably 10 or less. The salt in component (A1) is preferably an alkali metal salt, more preferably selected from at least one of sodium and potassium salts, and even more preferably a sodium salt.

[0017] (Ingredient (A2)) Ingredient (A2) contains polyoxyalkylene alkyl ether (a1) and alkylglycerol ether (a2). As a polyoxyalkylene alkyl ether (a1), it is preferred to be a compound represented by the following general formula (1). R 1-O-(Y) mH (1) [In formula (1), R1 represents an alkyl group, Y represents an oxyethyl unit and / or an oxypropyl unit. m represents the average addition mole number of Y.] In general formula (1), regarding the number of carbon atoms in the alkyl group constituting R1, from the viewpoint of excellent effect in wetting the wings of flying pests and from the viewpoint of improving the directness of the spray droplets of the composition to efficiently repel flying pests, it is preferably 8 to 22, more preferably 8 to 18, and even more preferably 8 to 14. As the alkyl group, it can be either a straight-chain alkyl group or a branched alkyl group, but from the viewpoint of excellent effect in reducing surface tension and wetting the wings of flying pests, a straight-chain alkyl group is preferred. Furthermore, Y represents an oxyethyl unit and / or an oxypropyl unit, with Y preferably being an oxyethyl unit. m represents the average addition mole number of Y, which, from the viewpoint of improving the directness of the spray droplets of the composition and efficiently repelling flying pests, is preferably 4 or more, more preferably 6 or more. Furthermore, from the viewpoint of excellent effect in wetting the wings of flying pests, the average addition mole number is preferably 30 or less, more preferably 20 or less, further preferably 15 or less, further preferably 12 or less, and further preferably 10 or less. The polyoxyethylene alkyl ether (a1) is preferably polyoxyethylene lauryl ether, and more preferably polyoxyethylene lauryl ether with an average addition mole number of oxyethylene ethyl ether of 6 to 10.

[0018] As an alkyl glycerol ether (a2), examples include alkyl glycerol ethers having an alkyl group having 8 or more carbon atoms and 22 or less, more preferably 8 or more carbon atoms and 18 or less, and even more preferably 8 or more carbon atoms and 14 or less. As an alkyl group, it can be either a straight-chain alkyl group or a branched-chain alkyl group, but from the viewpoint of improving the straightness of the spray droplets of the composition and efficiently repelling flying pests, a branched-chain alkyl group is preferred. 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, the composition is selected from at least one of 2-ethylhexyl glycerol ether, decyl glycerol ether, isodecyl glycerol ether, and lauryl glycerol ether; more preferably, it is selected from at least one of 2-ethylhexyl glycerol ether and isodecyl glycerol ether.

[0019] Ingredient (A) may be used in one or in combination of two or more.

[0020] 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, from the viewpoint of suppressing 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 the application scenario. For example, when used indoors, it can suppress stickiness and slipperiness on floors, walls, etc. Furthermore, regarding the content of each 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, more preferably 0.10% by mass or more, more preferably 0.15% by mass or more, and 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, more preferably 1.0% by mass or less, more preferably 0.5% by mass or less. []

[0021] In the composition of the present invention, the mass ratio of polyoxyalkylene alkyl ether (a1) to alkylglycerol ether (a2) [(a1) / (a2)] is preferably 0.1 or more, more preferably 0.5 or more, and more preferably 1.0 or more, and 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, more preferably 6.0 or less, more preferably 5.0 or less, and more preferably 4.0 or less.

[0022] In this invention, surfactant (A) may further include surfactants other than components (A1) and (A2).

[0023] As a surfactant other than components (A1) and (A2), from the viewpoint of safety to human body and environment, it is preferable to include one or more of the group consisting of nonionic surfactants, anionic surfactants and cationic surfactants, and more preferably to include at least one of nonionic surfactants and anionic surfactants. 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 silicone. Specific examples of anionic surfactants include at least one selected from alkylbenzene sulfonates, alkyl or alkenyl ether sulfates, alkyl or alkenyl sulfates, alkyl sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfonyl fatty acid salts, N-amino acids, and phosphate mono- or diesters. Counterions to the anionic groups of 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 ammonium alkanoates with 1 to 3 alkanoyl groups having 2 or 3 carbon atoms (e.g., monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.). Specific examples of cationic surfactants include at least one selected from alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylamide alkyltrimethylammonium salts, benzylamine ammonium 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.

[0024] 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 inhibiting 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. 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, further preferably 1.2% by mass or less, further preferably 1.0% by mass or less, and further preferably 0.8% by mass or less. There are no particular limitations on the application scenario; for example, when used indoors, it can suppress stickiness and slipperiness on floors, walls, etc., thereby improving operability. Furthermore, regarding the total content of components (A1) and (A2) in the composition of the present invention, from the viewpoint of excellent effect on 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, further preferably 40 parts by mass or more, further preferably 50 parts by mass or more, and more preferably 100 parts by mass or less. Furthermore, regarding the content of components (A1) and (A2) in the composition, the amount of components existing in a dissociated state in the composition is considered as the amount of the dissociated form. That is, if it is sodium dioctyl sulfosuccinate, then it is considered as the amount of dioctyl sulfosuccinic acid. []

[0025] <Ingredient (B): Organic acid or organic acid salt> The composition of the present invention contains at least one compound selected from organic acids and organic acid salts as component (B). By including component (B), the composition of the present invention can enhance the insecticidal activity against flying pests.

[0026] As a component (B), it may contain, for example, at least one selected from benzoic acid, lactic acid, sorbic acid, tartaric acid, fumaric acid, malic acid, citric acid and salts thereof.

[0027] From the viewpoint of further enhancing 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.

[0028] 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, even 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, even more preferably 0.5% by mass or less. In this specification, the content (mass %) of organic acid salts refers to the mass of the organic acid constituting the organic acid salt.

[0029] 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, more preferably 0.3 or more, more preferably 0.4 or more, and more preferably 20 or less, more preferably 15 or less, more preferably 10 or less, more preferably 5.0 or less, more preferably 2.0 or less, in order to further improve the insecticidal activity.

[0030] <Water> 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. Regarding the water content in the composition, from the viewpoint of safety to the human body and the environment, and from the viewpoint of easily controlling the spray droplets of the composition to a suitable spray particle size, it is preferably 80% by mass or more, more preferably 85% by mass or more, further preferably 88% by mass or more, further preferably 90% by mass or more, and preferably 99.92% by mass or less, more preferably 99% by mass or less, further preferably 97% by mass or less, and further preferably 95% by mass or less.

[0031] <Ingredient (C): Alcohol> 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)"). As component (C), for example, at least one of the following can be used: alcohols having 1 to 5 carbon atoms, such as methanol, ethanol, 1-propanol, 2-propanol, and butanol; diols and triols having 6 or fewer carbon atoms, such as 1,3-butanediol, glycerol, ethylene glycol, and propylene glycol. Among these, at least one of ethanol and 2-propanol is preferred, and ethanol is even more preferred.

[0032] When the composition for repelling flying pests 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, more preferably 2.0% by mass or more, more preferably 2.5% by mass or more, and more preferably 4.0% by mass or more, from the viewpoint of reducing alcohol odor and improving safety during storage, transportation and use, preferably 20% by mass or less, more preferably 15% by mass or less, more preferably 10% by mass or less, and more preferably 8.0% by mass or less.

[0033] <Other Ingredients> The composition for repelling flying pests of the present invention may also contain other ingredients besides those mentioned above, such as preservatives, colorants, fragrances, pH adjusters, etc., without compromising the effectiveness of the invention. However, from the viewpoint of achieving the effects of the present invention, the content of the components in the composition for repelling flying pests, excluding surfactant (A), compound (B), water, and alcohol (C), 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, even more preferably 0.5% by mass or less.

[0034] From the perspective 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. Therefore, it can be formulated into a composition with a high flying pest repelling effect even without containing insecticidal ingredients other than component (B). The insecticidal ingredients mentioned here may include, for example, 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 (except for those equivalent to compound (B)). Examples of pyrethroid insecticides include: methoxyfenozide, dl,d-T80-pyrethrin, d-T80-pyrethrin, d,d-T80-pyrethrin, d,d-T98-pyrethrin, d-T80-pyrethrin, ... Furthermore, examples of insecticidal ingredients other than pyrethroid insecticides include: organophosphate insecticides such as pyrethroids and malathion; carbamate insecticides such as fentanyl and basilyl; acaricides such as trichlorfon, methyl chlorpyrifos, and thiamethoxam; and newer nicotine insecticides such as imidacloprid, dinotefuran, and clotrimazole.

[0035] Furthermore, the phrase "does not contain any insecticidal ingredients other than ingredient (B)" means that the content of insecticidal ingredients other than ingredient (B) in the composition for repelling flying pests is less than 1% by mass, preferably less than 0.1% by mass, more preferably less than 0.01% by mass, and even more preferably less than 0.001% by mass, and even more preferably substantially non-existent.

[0036] 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. Examples of fungicides used herein 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, and even more preferably less than 0.005% by mass, and even more preferably substantially free.

[0037] From the perspectives of easily adjusting the viscosity of the composition for repelling flying pests to a suitable spray viscosity, 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 composition for repelling flying pests of the present invention preferably has a low content of polymeric compounds. 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, and even more preferably less than 0.07% by mass, and even more preferably less than 0.05% by mass. The aforementioned (meth)acrylate alkyl ester copolymers refer to polymeric compounds obtained by copolymerizing (meth)acrylate alkyl esters, especially those with film-forming properties. As film-forming (meth)acrylate alkyl ester copolymers, they can be any of cationic, anionic, nonionic, and amphoteric polymers. Examples of amphoteric polymers among film-forming (meth)acrylate alkyl ester copolymers include: N-methacryloxyethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-alkyl methacrylate copolymers ("Yukaformer 202", "Yukaformer 104D", "Yukaformer AMPHOSET", "Yukaformer R205S", "Yukaformer SM", etc. manufactured by Mitsubishi Chemical Co., Ltd.), octyl acrylate-hydroxypropyl acrylate-butylaminoethyl methacrylate copolymer, N-methacryloxyethyl N,N-dimethylaminoethyl-α-N-methylcarboxybetaine-alkyl methacrylate copolymer, etc. 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 faster, the pressure applied to the droplets becomes higher, thus the spray droplets of the composition are easier to reduce in size. Furthermore, by stabilizing the trigger pull speed, when the liquid film of the composition disperses into droplets using rotational force, the spray droplets are easier to reduce in size and the particle size is also easier to control.

[0038] 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.

[0039] The method for manufacturing the composition for repelling flying pests of the present invention is not particularly limited. For example, it can be manufactured by mixing surfactant (A), compound (B), water, and alcohol (C) as needed, and other ingredients using a known stirring device.

[0040] 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 higher, more preferably 3.5 or higher, and even more preferably 4 or higher, and even more preferably 4.5 or higher. From the same viewpoint, it is preferably 10 or lower, more preferably 8 or lower, even more preferably 7 or lower, and even more preferably 6 or lower. 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.

[0041] Regarding the surface tension of the composition for repelling flying pests of 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, and even more 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, the 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 was measured at 25°C using the Wilhelmy method. Specifically, it can be measured using the method described below. (Methods for measuring surface tension) 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 the measurement. The platinum plate was immersed in the test sample by 1 mm, and the value measured 10 minutes after immersion was taken as the surface tension value.

[0042] [Spray for repelling flying pests] 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.

[0043] <Spray container> The spray container used in the flying pest repellent spray of the present invention is not particularly limited as long as it can be filled with the above-mentioned flying pest repellent composition and can be 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. There is no particular limitation 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. Regarding the nozzle diameter of the spray container, from the perspective of preventing the spray droplets from scattering horizontally and vertically and allowing them to easily and efficiently reach flying pests, 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. Similarly, from the same perspective, 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 largest inner diameter of the nozzle tip. The shape of the nozzle is not particularly limited, but a circular or elliptical shape is preferred.

[0044] From the viewpoint that it is easy to control 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 a nozzle diameter within the aforementioned range is even more preferred. From the perspective of ensuring that the spray droplets do not scatter horizontally or vertically, but rather travel straight and efficiently to reach flying pests, among trigger spray containers, pressure-accumulating trigger spray containers are preferred. Generally speaking, pressure-accumulating spray containers have the following structure: a sliding piston relative to a cylinder housed inside the container causes liquid in the cylinder, exceeding a certain pressure, to be sprayed out 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 providing advantages in controlling the particle size of the sprayed droplets. As a pressurized trigger spray container, the container described in Japanese Patent Application Publication No. 2017-226474 can be exemplified, for example.

[0045] Furthermore, trigger spray containers may have a bubble-forming mechanism. From the perspective 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 not to have a bubble-forming mechanism. Here, the term "bubble-forming mechanism" specifically refers to the mechanism described in (1) or (2) below. (1) A mechanism in which the nozzle of a container is arranged perpendicular to the ejection direction, has a plate-like body or a mesh-like barrier with protrusions, and the liquid ejected in a mist form is mixed with air to form bubbles by colliding with the plate-like body or the barrier. (2) A mechanism in which an external gas inlet is located near the nozzle of a container, and 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 container, forming bubbles that are then sprayed forward from the nozzle. As specific examples of (1) above, the institutions described in 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. As specific examples of (2) above, we can cite the institutions described in Figure 2 of Japanese Patent Application Publication No. 2007-167719, Japanese Patent Application Publication No. 2006-150279, and Japanese Patent Application Publication No. 52-116919.

[0046] 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. Regarding the appearance of the spray droplets emitted from a trigger-type spray container that does not have a bubble-forming mechanism, it is preferable that, at room temperature (25°C), when sprayed 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, when sprayed 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.

[0047] Regarding the spray volume of the composition for repelling flying pests using a trigger spray container, from the viewpoint of ensuring that a sufficient amount of the spray droplets of the composition reaches the flying pests for efficient repelling, the spray volume per trigger pull is preferably 0.2 g / puff, more preferably 0.5 g / puff, and even more preferably 0.7 g / puff. Furthermore, from the viewpoint of suppressing stickiness and slipperiness when using the flying pest repellent spray, it is preferably 2.0 g / puff or less, more preferably 1.5 g / puff or less, and even more preferably 1.2 g / puff or less. On the other hand, regarding the spray volume of the composition for repelling flying pests in aerosol containers, from the viewpoint of ensuring that a sufficient amount of the spray droplets of the composition reaches the flying pests for efficient repelling, the spray volume per second is preferably 0.2 g or more, more preferably 0.5 g or more, and even more preferably 0.7 g 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 2.0 g or less, more preferably 1.5 g or less, and even more preferably 1.2 g or less. [Example]

[0048] The present invention will now be described with reference to embodiments, but the present invention is not limited to the scope of the embodiments. Furthermore, in this embodiment, various evaluations and measurements are performed by the following methods.

[0049] (Evaluation of the insecticidal properties of flying pests) The evaluation of the insecticidal properties of the insecticide for flying pests is explained using Figures 1 and 2. Figure 1 is a plan view of a frame (1) containing mosquitoes used to evaluate the insecticidal properties of mosquitoes. Figure 2 is a diagram showing the spraying of the insecticide composition into the frame (1) from the side view of the frame (1). As shown in Figure 1, a mosquito (2) (a female adult Aedes albopictus) is placed in a plastic frame (1) with an aspect ratio of 6 cm × 6 cm and a depth of 4 cm. The front surface (11) and back surface (12) of the frame (1) are covered with a sieve (3) with a wire diameter of 0.1 mm and a mesh size of 1 mm to seal the mosquito inside. Then, as shown in Figure 2, the composition of each example is filled into the spray container with aerosol in such a fixed manner that the front end (i.e., the spray outlet) (41) of the spray container (4) reaches 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 approximately fixed pressure throughout the entire stroke, facing the frame (1), thereby spraying the composition. (5) in Figure 2 shows the composition being sprayed. The time taken from the start to the end of the trigger pull is 0.38 seconds, and the time taken from the start to the end of the liquid spray is 0.22 seconds. Observe and record the condition of mosquitoes (2) after 10, 20, 30, 60 and 180 minutes. Conduct more than 6 independent experiments and calculate the percentage of mosquitoes killed.

[0050] (Evaluation of stickiness and slipperiness) 20 μL of the flying pest repellent composition was applied to the tile surface, spreading it in a 3 cm diameter circle using the bottom of a small glass vial, and allowed to air dry. After 1 hour, once the composition was confirmed to be dry, the stickiness and slipperiness were evaluated. Stickiness was assessed by touching the coated surface 5 times with the pad of the right index finger, according to the following criteria. Slipperiness was assessed by tracing the coated surface in one direction with the right index finger, according to the following criteria. <Stickness Evaluation Criteria> -3: Completely non-sticky -2: Not too sticky -1: Slightly less sticky 0: It can be described as neither sticky nor not sticky. +1: Slightly sticky +2: Quite sticky +3: Very sticky <Evaluation Criteria for Smoothness> -3: Not slippery at all -2: Not very slippery -1: Slightly less slippery 0: It can be said to be neither slippery nor not slippery. +1: Slightly slippery +2: Quite slippery +3: Very slippery

[0051] (Appearance evaluation) 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. A: Uniformly transparent B: Slightly turbid C: Leukorrhea

[0052] (pH measurement) The pH values ​​of the compositions for repelling flying pests in the examples and comparative examples were measured at 25°C using a pH meter (electrode: 6367-10D (manufactured by Horiba Manufacturing Co., Ltd.)).

[0053] (Measurement of surface tension) 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 to a depth of 1 mm, and the measurement value 10 minutes after immersion was taken as the surface tension value.

[0054] In the examples and comparative examples, the following were used as organic acids, organic acid salts, surfactants and pH adjusters.

[0055] (Organic acids) Benzoic acid (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.) Lactic acid (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.) Tartaric acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.) Fumaric acid (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.) Malic acid (manufactured by Fujifilm and Wako Pure Chemical Industries, Ltd.) Citric acid (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.)

[0056] (organic acid salts) Sodium benzoate (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.) Potassium benzoate (manufactured by Fujifilm and Kazumitsu Chemical Co., Ltd.)

[0057] (surfactants) 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) Polyoxyethylene (9) lauryl ether (manufactured by Kao Corporation, product name: Emulgen 109P) 2-Ethylhexylglycerol ether (manufactured by Kao Corporation, product name: Penetol GE-EH) Sodium N-cocoyl-L-glutamate (manufactured by Ajinomoto Co., Ltd., product name: Amisoft CS-11(F)) Sodium polyoxyethylene lauryl ether sulfate (manufactured by Kao Corporation, product name: Emal 270J)

[0058] (pH adjuster) Sodium hydroxide sulfuric acid

[0059] Examples 1-24 and Comparative Examples 1-5 (Preparation and Evaluation of Compositions for Repelling Flying Pests) Prepare the organic acids, organic acid salts, and surfactants shown in Tables 1-4, and trigger spray containers (trigger type: accumulator, capacity 370 mL, nozzle diameter: 0.8 mm, spray volume: 0.9 g / spray). 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 effective ingredient amounts (mass %) of each component. The amounts of surfactant (A) listed in each table, as described above, are the amounts in the dissociated form. Furthermore, the amount of undissociated nonionic surfactant in the composition is the formulation amount. Also, the amounts of sodium polyoxyethylene lauryl ether sulfate and sodium N-cocoyl-L-glutamate are expressed as formulation amounts instead of the amounts in the dissociated form. Furthermore, the content (mass %) of organic acid salts is the mass of the organic acid constituting the organic acid salts. The composition is filled into a spray container to prepare a spray for repelling flying pests. 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 in Examples 6 and 17-19. Also, the evaluation of appearance was conducted only in Examples 6 and 20-24.

[0060] [Table 1] Table 1 Example 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Composition of the composition (mass %) Ingredients(A1) Sodium dioctyl sulfosuccinate 0.19 0.19 0.19 0.19 0.19 0.33 0.28 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 Ingredient (A2) a1 Polyoxyethylene (9) lauryl ether 0.30 a2 2-Ethylhexylglycerol ether 0.10 Surfactants other than (A1) and (A2) N-cocoyl-L-glutamic acid sodium salt 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 Compound (B) benzoic acid 0.30 lactic acid 0.30 tartaric acid 0.30 fumaric acid 0.30 malic acid 0.30 Citric acid 0.30 Sodium benzoate 0.25 0.17 0.08 0.25 0.25 0.25 0.25 0.25 0.25 Potassium benzoate 0.23 Alcohol (C) ethanol 6.5 6.5 6.5 6.5 6.5 6,5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 pH adjuster Sodium hydroxide 0.001 0.02 0.09 0.15 0.18 0.14 0.11 0.002 sulfuric acid 0.02 0.01 0.01 0.07 0.01 0.01 0.01 0.02 water 92.89 92.98 93.07 92.84 92.91 92.91 92.96 92.84 92.84 92.77 92.71 92.68 92.72 92.75 92.91 92.91 pH value 5 5 5 4 7 5 5 5 5 5 5 5 5 5 5 9 Surface tension [mN / N] 26.2 26.8 28.7 26.0 27.6 25.2 25.5 26.0 26.2 26.4 26.1 25.7 25.8 25.8 27.5 29.9 Evaluation results Percentage of mosquitoes killed [%) 88 100 43 86 83 100 93 65 50 71 70 67 50 70 78 38

[0061] [Table 2] Table 2 Comparative example 1 2 3 4 5 Composition of the composition (mass %) Ingredients(A1) Sodium dioctyl sulfosuccinate 0.19 Ingredient (A2) a1 Polyoxyethylene (9) lauryl ether 0.40 a2 2-Ethylhexylglycerol ether 0.40 Surfactants other than (A1) and (A2) N-cocoyl-L-glutamic acid sodium salt 0.15 Sodium polyoxyethylene lauryl ether sulfate 0.28 Compound (B) Sodium benzoate 0.25 0.25 0.25 0.25 Alcohol (C) ethanol 6.5 6.5 6.5 6.5 6.5 pH adjuster sulfuric acid 0.2 0.01 0.01 0.01 0.01 water 92.96 93.24 92.96 92.84 92.84 pH value 5 5 5 5 5 Surface tension [mN / N] 30.1 72.8 33.2 30.8 - Evaluation results Percentage of mosquitoes killed [%] 25 0 17 0 Layer separation and inhomogeneity

[0062] [Table 3] Table 3 Example 6 17 18 19 Composition of the composition (mass %) Ingredients(A1) Sodium dioctyl sulfosuccinate 0.33 0.95 1.90 2.84 Compound (B) Sodium benzoate 0.25 0.25 0.25 0.25 Alcohol (C) ethanol 6.5 6.5 6.5 6.5 pH adjuster sulfuric acid 0.01 0.01 0.01 0.01 water 92.91 92.29 91.34 90.40 pH value 5 5 5 5 Surface tension [mN / N] 25.8 27.3 25.2 25.1 Evaluation results Sticky review -3 -2 -1 +1 Smooth review -1 -2 0 +2

[0063] [Table 4] Table 4 Example 6 20 twenty one twenty two twenty three twenty four Composition of the composition (mass %) Ingredients(A1) Sodium dioctyl sulfosuccinate 0.33 0.33 0.33 0.33 0.33 0.33 Compound (B) Sodium benzoate 0.25 0.25 0.25 0.25 0.25 0.25 Alcohol (C) ethanol 6.5 0.0 0.25 1.0 2.0 3.0 pH adjuster sulfuric acid 0.01 0.01 0.01 0.01 0.01 0.01 water 92.91 99.41 99.16 98.41 97.41 96.41 pH value 5 5 5 5 5 5 Evaluation results Percentage of mosquitoes killed [%] 100 100 100 100 100 100 Appearance evaluation 25.0℃ A C C C C A 27.5℃ A C C C B A 30.0℃ A C C B A A

[0064] As shown in Tables 1-4, the composition for repelling flying pests according to the present invention exhibits excellent insecticidal effect against mosquitoes, which are flying pests. Furthermore, the composition for repelling flying pests in Comparative Example 5 could not be evaluated due to its layer separation and unevenness. [Industrial Applicability]

[0065] According to the present invention, a composition for repelling flying pests and a spray for repelling flying pests are obtained. The composition for repelling flying pests is sprayed onto flying pests and is safer for humans and the environment, and has improved insecticidal properties.

[0066] 1: Box 2: Mosquitoes 3: Screen 4: Spray container 5: The sprayed composition for repelling flying pests 11: Surface before frame 12: Surface behind the frame 41: The tip of the spray nozzle (spray outlet) of the spray container

Claims

1. A composition for repelling flying pests, which is sprayed onto flying pests and used by the user, and contains 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 salt (A1) of an aliphatic alcohol having 5 to 18 carbon atoms and a mono- or diester of sulfosuccinic acid, and a mixture (A2) of polyoxyalkylene alkyl ether (a1) and alkyl glycerol ether (a2), and the compound (B) comprises at least one salt selected from benzoic acid, lactic acid, sorbic acid, tartaric acid, fumaric acid, malic acid, citric acid and salts thereof, and the content of the insecticidal component other than compound (B) in the composition for repelling flying pests is 0.1% by mass or less.

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

3. The composition for repelling flying pests as claimed in claim 1 or 2, wherein the content of the above compound (B) is 0.03% by mass or more.

4. The composition for repelling flying pests as claimed in claim 1 or 2, wherein the mass ratio of the surfactant (A) to the compound (B) [(A) / (B)] is 0.1 to 20.

5. The composition for repelling flying pests as requested in item 1 or 2 has a pH value of 3 or higher and 8 or lower at 25°C.

6. The composition for repelling flying pests as claimed in item 1 or 2 has a surface tension of 23.5 mN / m or more and 45.0 mN / m or less at 25°C.

7. The composition for repelling flying pests as claimed in claim 1 or 2, wherein the salt (A1) is selected from at least one of sodium salts and potassium salts.

8. The composition for repelling flying pests as claimed in claim 1 or 2 further comprises an alcohol (C) having 6 or fewer carbon atoms.

9. The composition for repelling flying pests as claimed in claim 8, wherein the alcohol (C) is selected from at least one of ethanol and 2-propanol.

10. The composition for repelling flying pests as claimed in claim 8, wherein the content of the alcohol (C) is 1.0% by mass or more.

11. The composition for repelling flying pests as claimed in claim 8, wherein the content of the alcohol (C) is 1.0% by mass or more and 8.0% by mass or less.

12. The composition for repelling flying pests as claimed in claim 1 or 2, wherein the water content is 80% by mass or more and 99.92% by mass or less.

13. The composition for repelling flying pests as claimed in claim 1 or 2 does not actually contain any insecticidal ingredients other than component (B) in the composition for repelling flying pests.

14. The composition for repelling flying pests as claimed in claim 1 or 2, wherein the insecticidal component other than component (B) is a pyrethroid insecticide.

15. A spray for repelling flying pests, comprising a composition for repelling flying pests as claimed in any one of claims 1 to 14, filled in a spray container.

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