Squamate repellent

Abstract

The present invention addresses the problem of providing a repellent against animals in the order Squamata, the repellent being capable of continuously exhibiting an excellent repellent effect on animals in the order Squamata, and being used with no change in effect throughout the initial stage of use to the final stage of use. A repellent against animals in the order Squamata according to the present invention has the form of an aerosol agent formed by filling a pressure-resistant container with an aerosol composition comprising an undiluted solution and a propellant, wherein the undiluted solution contains, as active ingredients, at least one among an inorganic powder, a solvent having a hydroxy group or a ketone group, and a silicone powder.

Description

[Technical field]

[0001] The present invention relates to a squamate repellent, and more particularly to a squamate repellent used in the form of an aerosol. [Background technology]

[0002] Geckos are considered beneficial insects because they prey on small pests such as insects, spiders, and mosquitoes, but their intrusion into homes and the damage caused by their droppings are becoming a problem. Geckos are found in areas with temperatures of around 30°C and are distributed on all continents except Antarctica, and in Japan they have been confirmed to live in Honshu, Shikoku, Kyushu, and the surrounding islands. Geckos are nocturnal and appear at night to target insects that gather around street lamps and the light of private homes, so they can be found clinging to walls and windows.

[0003] Conventionally, geckos have been driven away by repelling them, for example by spreading repellents that emit an odor that geckos and similar animals dislike. As such repellents, for example, a repellent for reptiles containing glycol ethers represented by a specific general formula as an active ingredient (Patent Document 1) and an animal repellent / deodorant mainly made of limonene (Patent Document 2) have been proposed. Patent Document 1 describes that the glycol ethers represented by the specific general formula have a repellent effect on reptiles such as snakes and lizards, and Patent Document 2 describes that limonene has a repellent effect on snakes and geckos. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 61-289002 [Patent Document 2] Japanese Patent Publication No. 62-164602 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when using repellents such as those described in Patent Documents 1 and 2, although a repellent effect is obtained immediately after spraying, there is a problem in that the effect does not last long because the odor fades over time. In addition, since squamate animals such as geckos and lizards tend to attach to high places or vertical surfaces such as walls and windows, it is difficult to easily apply active ingredients to such places. An object of the present invention is to provide a squamate repellent which exhibits an excellent repellent effect against squamates for a long time, has no variation in effect from the beginning to the end of use, and can be used easily. [Means for solving the problem]

[0006] As a result of extensive research into the above-mentioned problems, the inventors discovered that the above-mentioned problems could be solved by an aerosol agent containing an inorganic powder as an active ingredient, and containing, together with the inorganic powder, at least one of a solvent having a hydroxyl group or a ketone group and a silicone powder, and thus completed the present invention.

[0007] That is, the present invention is characterized by the following (1) to (3). (1) A squamata repellent in the form of an aerosol agent in which an aerosol composition consisting of a concentrate and a propellant is filled into a pressure-resistant container, the concentrate containing, as active ingredients, an inorganic powder and at least one of a solvent having a hydroxyl group or a ketone group and a silicone powder. (2) The squamata repellent according to (1) above, wherein the solvent having a hydroxy group or a ketone group is at least one selected from the group consisting of alcohols having 2 to 4 carbon atoms and acetone. (3) The squamata repellent according to (1) or (2) above, wherein the content ratio of the inorganic powder to the silicone powder is, in mass ratio, inorganic powder / silicone powder=2 to 75. Effect of the Invention

[0008] The squamata repellent of the present invention has the form of an aerosol agent, and can be easily applied to the desired location. In addition, the inorganic powder that exerts a repellent effect against squamata has excellent dispersibility in the aerosol composition, and caking is also suppressed, so that the repellent can be sprayed at a constant rate from the beginning to the end of its use, and an excellent repellent effect against squamata can be continuously obtained. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The squamata repellent of the present invention will now be described. In this specification, "mass" is synonymous with "weight".

[0010] The squamata that are the target of repelling in the present invention are a group belonging to reptiles, including lizards and snakes. Specifically, the suborder Lacertilia, such as geckos, skinks, lizards, iguanas, and chameleons, the suborder Serpentes, such as Japanese rat snakes and pit vipers, and the suborder Acanthognathus, such as the earthworm lizard.

[0011] The squamata repellent of the present invention has the form of an aerosol agent in which an aerosol composition consisting of a concentrate and a propellant is filled in a pressure-resistant container, and the concentrate contains, as active ingredients, an inorganic powder and at least one of a solvent having a hydroxyl group or a ketone group and a silicone powder. Each component will be described below.

[0012] (undiluted) As described above, the stock solution contains at least an inorganic powder, and at least one of a solvent having a hydroxyl group or a ketone group, and a silicone powder.

[0013] In the present invention, the inorganic powder is an active ingredient that repels squamate animals. For example, when the squamate animal is a gecko, the surface of the gecko's feet is covered with very fine hairs, and the surface of the feet can climb even vertical or upside-down walls due to the intermolecular force of the hairs. However, the inorganic powder penetrates into the gaps between the fine hairs on the surface of the feet of the gecko, reducing the intermolecular force when the gecko sticks to the wall, and thus physically repelling the gecko.

[0014] Examples of inorganic powders include silica (silicon dioxide), alumina, zinc oxide, titanium oxide, magnesium oxide, aluminum hydroxide, calcium carbonate, talc, mica, perlite, silicic acid, silicates (magnesium silicate, calcium silicate, etc.), kaolin, etc. At least one selected from the group consisting of these can be used. Among them, from the viewpoint of adhesion to the target to be treated such as a wall, it is preferable to use at least one selected from the group consisting of silica, calcium carbonate, and talc.

[0015] The average particle size of the inorganic powder is not particularly limited as long as it is within a range that can suppress clogging of the nozzle of the aerosol agent, but is preferably in the range of 0.1 to 100 μm, more preferably 0.1 to 50 μm, and even more preferably 1 to 20 μm. Within the above range, the inorganic powder can be uniformly attached to the surface of the treatment object and does not soil the surface of the treatment object. The average particle size of the inorganic powder can be measured by particle size distribution measurement using, for example, the Coulter counter method or the laser diffraction scattering method.

[0016] The inorganic powder is preferably contained in the stock solution in the range of 0.75 to 20% by mass (w / w%). If the inorganic powder is 0.75% by mass or more in the stock solution, the dispersion of the inorganic powder can be easily confirmed when the stock solution is stirred, so that it is easy to confirm the uniformity of the stock solution when filling a pressure-resistant container in the production of an aerosol agent. In addition, if the content of the inorganic powder is too high, the stirrability of the stock solution decreases, making stable production difficult, so that the content of the inorganic powder is preferably 20% by mass or less. The content of the inorganic powder in the stock solution is more preferably 1% by mass or more, even more preferably 1.5% by mass or more, more preferably 15% by mass or less, and even more preferably 7% by mass or less.

[0017] The content of the inorganic powder in the aerosol composition is preferably in the range of 0.25 to 10% by mass, more preferably 0.28 to 7.5% by mass, and even more preferably 0.3 to 3.5% by mass. When the content of the inorganic powder in the aerosol composition is 0.25% by mass or more, the inorganic powder can be attached evenly to the surface of the object to be treated, so that the repellent effect of the squamate animals can be sufficiently obtained. In addition, if the redispersibility of the inorganic powder in the aerosol composition is poor, a large amount of the inorganic powder is sprayed when the aerosol agent is first used, and as the amount of the inorganic powder sprayed decreases at the end of the use as the aerosol agent is repeatedly used, the effect of the initial use may not be obtained. When the content of the inorganic powder in the aerosol composition is 10% by mass or less, the inorganic powder can be easily redispersed in the aerosol agent, so that the amount of the inorganic powder sprayed is stable, and there is no difference in the effect between the initial use and the end use.

[0018] The concentrate contains at least one of a solvent having a hydroxyl group or a ketone group and a silicone powder in order to maintain the dispersion stability of the inorganic powder in the aerosol composition.

[0019] The solvent having hydroxyl group or ketone group has high affinity with inorganic powder, and can also dissolve part of inorganic powder.Therefore, it can improve the dispersibility of inorganic powder in aerosol composition and suppress caking.In addition, silicone powder also has affinity with inorganic powder, so it can improve the dispersibility of inorganic powder in aerosol composition and suppress caking.

[0020] Examples of the solvent having a hydroxyl group or a ketone group include primary alcohols such as ethanol and butanol, secondary alcohols such as isopropyl alcohol, ketones such as acetone and ethyl methyl ketone, carboxylic acids such as acetic acid, and esters such as ethyl acetate. Among them, from the viewpoint of stabilizing the inorganic powder in the aerosol composition, it is preferable to use at least one selected from the group consisting of alcohols having 2 to 4 carbon atoms and acetone, and it is more preferable to select from the group consisting of ethanol, isopropyl alcohol, and acetone.

[0021] The solvent having a hydroxyl group or a ketone group is preferably contained in the stock solution in an amount of 7.5 to 65% by mass. When the solvent having a hydroxyl group or a ketone group is 7.5% by mass or more in the stock solution, it has an affinity to the surface of the inorganic powder evenly and can dissolve the inorganic powder, so that the dispersibility of the inorganic powder in the stock solution can be improved and the redispersibility can also be improved. When the content of the solvent is 65% by mass or less, caking of the stock solution can be suppressed. The content of the solvent having a hydroxyl group or a ketone group is more preferably 8.5% by mass or more, more preferably 10% by mass or more, more preferably 60% by mass or less, and even more preferably 55% by mass or less.

[0022] The content of the solvent having a hydroxyl group or a ketone group in the aerosol composition is preferably in the range of 3 to 30% by mass, more preferably 4 to 30% by mass, and even more preferably 4.5 to 30% by mass. When the content of the solvent having a hydroxyl group or a ketone group in the aerosol composition is 3% by mass or more, the solvent having a hydroxyl group or a ketone group does not separate in the formulation even when a propellant is filled, so that the dispersibility of the inorganic powder is improved and the redispersibility can also be improved, and when the content is 30% by mass or less, caking of the aerosol composition can be suppressed.

[0023] Silicone powder is preferably a powder of a compound having a silicic acid group and a silyl group, more preferably a powder having a siloxane bond. Examples of silicone powder include trimethylsiloxysilicate and polymethylsilsesquioxane. Among them, trimethylsiloxysilicate is preferred from the viewpoint of solubility in the solvent in the original solution.

[0024] The average particle size of the silicone powder is not particularly limited, but from the viewpoint of solubility in a solvent, it is preferably in the range of 0.1 to 1000 μm, more preferably 0.5 to 500 μm, and even more preferably 1 to 100 μm. When it is in the above range, it can improve dispersibility and redispersibility by affinity with the surface of the inorganic powder, and can also suppress clogging of the nozzle of the aerosol agent. The average particle size of the silicone powder can be measured by particle size distribution measurement using, for example, the Coulter counter method or the laser diffraction scattering method.

[0025] The silicone powder is preferably contained in the concentrate in an amount of 0.05 to 1.1% by mass. When the silicone powder is 0.05% by mass or more in the concentrate, it has an even affinity with the surface of the inorganic powder, and therefore the dispersibility of the inorganic powder in the concentrate is improved, and the redispersibility can also be improved. When the silicone powder content is 1.1% by mass or less, caking of the concentrate can be suppressed. The silicone powder content is more preferably 0.06% by mass or more, even more preferably 0.08% by mass or more, more preferably 1.05% by mass or less, and even more preferably 1% by mass or less.

[0026] The content of the silicone powder in the aerosol composition is preferably in the range of 0.03 to 0.5% by mass, more preferably 0.035 to 0.49% by mass, and even more preferably 0.04 to 0.48% by mass. When the content of the silicone powder in the aerosol composition is 0.03% by mass or more, it has an even affinity with the surface of the inorganic powder, improving the dispersibility of the inorganic powder and also improving the redispersibility, and when it is 0.5% by mass or less, caking in the aerosol composition can be suppressed.

[0027] The silicone powder is preferably contained relative to the inorganic powder in a mass ratio of inorganic powder / silicone powder=2 to 75, and the content ratio of the inorganic powder to the silicone powder is more preferably 3 to 75, and further preferably 3.5 to 75. When the inorganic powder / silicone powder (mass ratio) is within the above range, the dispersibility of the inorganic powder in the aerosol composition is improved, and no caking occurs, and redispersibility can also be improved.

[0028] In the present invention, the stock solution preferably contains a non-polar solvent. The non-polar solvent can be used as a solvent for mixing and dissolving at least one of the inorganic powder and the solvent having a hydroxyl group or a ketone group and the silicone powder, and when the solvent having a hydroxyl group or a ketone group is contained, the affinity between the polar components is improved by containing the non-polar solvent.

[0029] Examples of non-polar solvents include aliphatic hydrocarbons such as normal hexane, normal pentane, normal paraffin, isoparaffin, naphthene, and olefin; and aromatic hydrocarbons such as benzene, toluene, xylene, and mesitylene.

[0030] Examples of commercially available non-polar solvents include ExxonMobil's "Isopar L" (isoparaffin), "Isopar M" (isoparaffin), "Exxol D80" (naphthene), and "Exxol D110" (naphthene), and Sanko Chemical Industry Co., Ltd.'s "Neothiosol" (normal paraffin).

[0031] The non-polar solvent is preferably contained in the stock solution in a range of 30 to 99.2% by mass, more preferably 35 to 95% by mass, and even more preferably 40 to 90% by mass. When the content of the non-polar solvent in the stock solution is within the above range, the effect of the present invention due to at least one of the inorganic powder and the solvent having a hydroxyl group or a ketone group and the silicone powder is not impaired, and the inorganic powder can be uniformly dissolved in the stock solution.

[0032] The content of the non-polar solvent in the aerosol composition is preferably in the range of 15 to 50 mass%, more preferably 17.5 to 47.5 mass%, and even more preferably 20 to 45 mass%. When the content of the non-polar solvent in the aerosol composition is in the above range, the effects of the present invention are not impaired.

[0033] When a solvent having a hydroxyl group or a ketone group is contained, the nonpolar solvent is preferably contained in such a manner that the mass ratio of the solvent having a hydroxyl group or a ketone group / nonpolar solvent is 0.01 to 1.2, and the content ratio of the solvent having a hydroxyl group or a ketone group to the nonpolar solvent is more preferably 0.02 to 1.15, and even more preferably 0.04 to 1.1. When the solvent having a hydroxyl group or a ketone group / nonpolar solvent (mass ratio) is within the above range, the dispersibility of the inorganic powder in the aerosol composition is improved, and no caking occurs, and redispersibility can also be improved.

[0034] The concentrate may contain other ingredients, such as fragrance ingredients, deodorant ingredients, preservatives, other solvents, pH adjusters, UV absorbers, surfactants, dissolution aids, etc., as long as the effects of the present invention are not impaired.

[0035] Examples of aromatic components include peppermint oil, orange oil, fennel oil, cinnamon oil, clove oil, turpentine oil, eucalyptus oil, Japanese cypress oil, jasmine oil, neroli oil, peppermint oil, bergamot oil, butygrain oil, lemon oil, lemongrass oil, cinnamon oil, citronella oil, geranium oil, citral, l-menthol, citronellyl acetate, cinnamic aldehyde, terpineol, nonyl alcohol, cis-jasmone, limonene, Examples of such oils include linalool, 1,8-cineole, geraniol, α-pinene, p-menthane-3,8-diol, eugenol, menthyl acetate, thymol, benzyl benzoate, benzyl salicylate, anise oil, lavender oil, rose oil, rosemary oil, grapefruit oil, camphene, p-cymene, citronellol, nerol, benzyl alcohol, n-butyraldehyde, isobutyraldehyde, coumarin, cineole, etc. These oils may be used alone or in combination of two or more.

[0036] Examples of deodorizing components include components that adsorb odorous components such as green tea extract, persimmon tannin, lauric acid methacrylate, methyl benzoate, methyl phenylacetate, geranyl crotolate, acetophenone myristate, benzyl acetate, benzyl propionate, and silver, and components that mask odorous components such as the above-mentioned aromatic components. These may be used alone or in combination of two or more.

[0037] Examples of preservatives include paraoxybenzoic acid esters such as methyl paraoxybenzoate, ethyl paraoxybenzoate, and butyl paraoxybenzoate, phenoxyethanol, and isothiazolinone such as methylisothiazolinone, etc. These may be used alone or in combination of two or more.

[0038] Examples of other solvents include water such as tap water, ion-exchanged water, and distilled water, and ethers such as diethyl ether, etc. These may be used alone or in combination of two or more.

[0039] Examples of pH adjusters include citric acid, citrates, phosphates, potassium carbonate, sodium hydrogen carbonate, ammonium hydrogen carbonate, etc. These may be used alone or in combination of two or more.

[0040] Examples of the ultraviolet absorber include para-aminobenzoic acid, para-aminobenzoic acid monoglycerol ester, octyl salicylate, phenyl salicylate, isopropyl para-methoxycinnamate, octyl para-methoxycinnamate, etc. These may be used alone or in combination of two or more.

[0041] The surfactant may be any commonly used one, and is not particularly limited. Examples of surfactants include various surfactants such as nonionic active surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and sucrose fatty acid ester surfactants. These may be used alone or in combination of two or more.

[0042] Examples of the solubilizing agent include fatty acid esters such as isopropyl myristate, etc. These may be used alone or in combination of two or more.

[0043] The stock solution can be obtained by mixing at least one of an inorganic powder, a solvent having a hydroxyl group or a ketone group, and a silicone powder, and any optional components. From the viewpoint of packing into a pressure-resistant container for aerosols, the viscosity of the concentrate at 20° C. is preferably 1000 mPa·s or less, more preferably 0.25 to 750 mPa·s, and even more preferably 0.5 to 500 mPa·s.

[0044] In the present invention, the content of the concentrate in the aerosol composition is preferably 10 to 95% by mass. If the content of the concentrate is too small, the concentrate is difficult to adhere to the object to be treated, and the amount of inorganic powder adhering to the surface of the object to be treated is reduced, making it difficult to obtain the effects of the present invention. If the content of the concentrate is too large, there is a possibility that the aerosol composition may be sprayed unevenly, so the above range is preferable. The lower limit of the content of the concentrate in the aerosol composition is more preferably 15% by mass or more, more preferably 20% by mass or more, and the upper limit is more preferably 90% by mass or less, more preferably 85% by mass or less.

[0045] (Propellant) The propellant is a medium for spraying the concentrate, and is filled under pressure together with the concentrate into a pressure-resistant container. As the propellant, for example, one or more of liquefied gases such as liquefied petroleum gases (LPG) such as propane, propylene, n-butane, isobutane, etc., dimethyl ether (DME), etc., compressed gases such as carbon dioxide gas, nitrogen gas, compressed air, etc., halogenated carbon gases such as HFC-152a, HFC-134a, HFO-1234yf, HFO-1234ze, etc. can be used. The propellant to be used may be appropriately selected according to the compatibility with the concentrate and the container components such as an aerosol valve.

[0046] The content of the propellant in the aerosol composition is preferably 5 to 90% by mass in the aerosol composition. When the content of the propellant in the aerosol composition is 5% by mass or more, the concentrate can be sprayed as spray particles, so that the inorganic powder can be sprayed evenly and a sufficient repellent effect can be obtained. When the propellant content is 90% by mass or less, an amount of the inorganic powder sufficient for repellency can be sprayed. The lower limit of the propellant content in the aerosol composition is more preferably 10% by mass or more, and even more preferably 15% by mass or more, and the upper limit is more preferably 85% by mass or less, and even more preferably 80% by mass or less.

[0047] The volume ratio of the concentrate to the propellant in the aerosol composition is preferably 10:90 to 90:10, more preferably 15:85 to 85:15, and even more preferably 20:80 to 80:20. By setting the volume ratio at such a level, the solution containing the inorganic powder can be efficiently diffused and sprayed, and can be easily attached to the treatment surface, so that the aerosol composition can be easily used to treat a wide area. The volume ratio of the concentrate to the propellant can be calculated by dividing the mass of each by its specific gravity.

[0048] The squamata repellent of the present invention is constructed by filling a pressure-resistant aerosol container with the above-mentioned concentrate and propellant, and closing the opening of the pressure-resistant container with an aerosol valve. When a user operates a spray member (hereinafter also referred to as a spray button) attached to the aerosol valve, the aerosol composition (concentrate and propellant) in the pressure-resistant container is pushed out of the pressure-resistant container through the aerosol valve, at which point the concentrate is converted into particles by the propellant and sprayed.

[0049] (Aerosol valve) The aerosol valve comprises an opening / closing member for switching between communication and cut-off between the inside and outside of the pressure-resistant container by the user operating the ejection member, a housing to which the opening / closing member is attached, and a mounting member for holding the housing at a predetermined position on the pressure-resistant container. The opening / closing member also includes a stem that slides up and down in conjunction with the ejection member. The sliding of the stem switches between communication (ejection state) and cut-off (non-ejection state) of the aerosol composition. The housing is formed with a housing hole for taking in the aerosol composition from the pressure-resistant container. The stem is formed with a stem hole for sending the aerosol composition taken in the housing to the ejection member. The path from the housing hole to the stem hole constitutes an internal passage through which the aerosol composition passes.

[0050] (Stem hole) The shape of the stem hole of the stem may be circular or polygonal. When the stem hole is circular, the size of the stem hole is preferably 0.1 to 2.0 mm in diameter, more preferably 0.2 to 1.7 mm in diameter, and even more preferably 0.3 to 1.5 mm in diameter. When the stem hole is polygonal, the size of the stem hole may be the same as that of a circular stem hole. The undertap hole of the stem preferably has a diameter of 0.2 to 3.0 mm, more preferably 0.3 to 2.5 mm, and even more preferably 0.5 to 2.0 mm. The shape of the undertap hole may be circular or polygonal, and if polygonal, the size of the undertap hole may be the same as that of a circle. The stem may or may not have a vapor tap hole, but if it does have a vapor tap hole, the size of the hole is preferably 0.1 to 1.2 mm in diameter, more preferably 0.2 to 1.1 mm in diameter, and even more preferably 0.3 to 1.0 mm in diameter. The shape of the vapor tap hole may be circular or polygonal, and if it is polygonal, the size of the vapor tap hole may be the same as that of the circular one. The number of stem holes and vapor tap holes may be one or more. When there are multiple stem holes and vapor tap holes, the size of the stem hole and vapor tap hole is the total size of the multiple stem holes and vapor tap holes.

[0051] (Injection member) The spray member (spray button) is a member attached to the pressure-resistant container via the aerosol valve. The spray button is formed with a passage in the operating part through which the aerosol composition taken in from the pressure-resistant container via the stem hole of the aerosol valve passes, and with a nozzle through which the aerosol composition is sprayed.

[0052] The shape of the nozzle of the injection button may be circular or polygonal. When the nozzle is circular, its inner diameter (diameter of the nozzle hole) may be adjusted appropriately according to the design of the injection amount and injection time, and for example, the diameter is preferably 0.1 to 3.0 mm, more preferably 0.2 to 2.7 mm, and even more preferably 0.3 to 2.5 mm. When the nozzle is polygonal, the size of the nozzle may be the same as that of a circle. In addition, there is no problem in having multiple nozzles with the same area as these.

[0053] (Aerosol internal pressure) The internal pressure of the aerosol is preferably 0.1 to 0.7 MPa, more preferably 0.15 to 0.6 MPa, and even more preferably 0.2 to 0.6 MPa at 25° C. If the internal pressure is too strong, the aerosol preparation may burst, while if the internal pressure is too weak, the force of ejecting the aerosol composition may be weak, and the aerosol composition may not be sufficiently attached to the treatment target, so the above range is preferable. The internal pressure can be measured by storing the aerosol in a constant temperature room or the like and setting the temperature to 25°C, using a pressure gauge (e.g., a PGM-E miniature pressure sensor (manufactured by Kyowa Electric Industry Co., Ltd.) attached to a WGA-710C instrument conditioner (manufactured by Kyowa Electric Industry Co., Ltd.)).

[0054] (Injection pressure) The spray pressure of the aerosol agent is preferably 5 to 600 gf, more preferably 8 to 500 gf, as measured at a position 5 cm away from the nozzle. If the spray pressure is too strong, the inorganic powder may not adhere to the object to be treated and may fall or scatter, resulting in insufficient repellent effect, whereas if the spray pressure is too weak, the inorganic powder may not adhere to the object to be treated and therefore insufficient repellent effect may not be obtained, so the above range is preferable. The spray pressure can be measured by placing a circular plate with a diameter of 6 cm attached to a digital force gauge (e.g., model number DS2-2N, manufactured by Imada Co., Ltd.) 5 cm vertically away from the nozzle of the aerosol, spraying the aerosol composition toward the center of the plate at room temperature of 25°C, taking the maximum value as the spray load, and calculating the average of the spray loads measured multiple times.

[0055] (Injection amount) The spray amount of the aerosol agent is preferably 0.5 to 11 g / sec, more preferably 0.7 to 9 g / sec, and even more preferably 1 to 7 g / sec. If the spray amount is 0.5 g / sec or more, the inorganic powder has low diffusibility, so that it is easy to attach a sufficient amount for repelling to the object to be treated, and even if the object to be treated is a vertical surface such as a floor or wall, it can be sufficiently attached. In addition, if the spray amount exceeds 11 g / sec, the inorganic powder has high diffusibility and there is a risk that the user will inhale the sprayed aerosol composition, so the spray amount is preferably 11 g / sec or less.

[0056] Methods for adjusting the amount of spray include, for example, adjusting the size of the nozzle of the spray button, adjusting the spray pressure of the aerosol agent, adjusting the stem hole diameter of the aerosol valve, adjusting the pressure of the propellant, and combinations of these.

[0057] (Injection pattern) The squamata repellent of the present invention has an adhesion area of ​​100 to 1000 cm2 on the target of treatment, when sprayed at a speed of 1 m / s for 1 second from a distance of 50 cm from the target of treatment, such as a floor or wall. 2 It is preferable that the adhesion area of ​​the aerosol contents on the treatment target is 100 cm 2 If the concentration is more than 1000 cm, a wide range of the target can be easily treated. 2 If the aerosol content is less than 150 cm2, the treatment can be performed appropriately only on the area that needs treatment. 2 More than 200cm is preferable. 2 More preferably, 750 cm 2 Less than 500cm is preferable. 2 The following is even more preferred:

[0058] The squamata repellent of the present invention adheres to the target floor, wall, etc. in an amount of 0.0125 to 0.75 mg / cm of the aerosol composition. 2 It is preferable to spray the aerosol composition so that the amount of the aerosol composition adhered to the object to be treated is 0.0125 mg / cm 2 If the amount is more than 0.75 mg / cm, an amount of inorganic powder capable of exerting a repellent effect can be adhered to the treatment object. 2 When the amount of the aerosol composition adhered to the object to be treated is 0.025 mg / cm or less, the spray particles do not adhere excessively to the object to be treated, and there is no risk of impairing the appearance. 2 More preferably, 0.05 mg / cm or more. 2 More preferably, 0.625 mg / cm 2 Less than 0.5 mg / cm is more preferable. 2 The following is even more preferred:

[0059] The squamata repellent of the present invention has an inorganic powder adhesion amount of 0.0005 to 0.03 mg / cm on the floor, wall, etc., which are the objects to be treated. 2 It is preferable that the amount of inorganic powder adhering to the treatment object is 0.0005 mg / cm2 At or above this level, a sufficient repellent effect against squamata can be obtained, and at 0.03 mg / cm 2 When the amount of inorganic powder adhered to the treatment object is less than 0.001 mg / cm, the spray particles do not adhere excessively to the treatment object, and there is no risk of impairing the appearance. 2 More preferably, 0.002 mg / cm or more. 2 More preferably, 0.025 mg / cm 2 Less than 0.02 mg / cm is more preferable. 2 The following is even more preferred:

[0060] In addition, since the squamate repellent of the present invention is an aerosol agent, it is easy to apply to hard-to-reach places such as walls and ceilings. Since it can be applied to such places, it can be suitably used as a repellent for lizards, and is particularly effective in repelling geckos. EXAMPLES

[0061] The present invention will be further described below with reference to examples and comparative examples, but the present invention is not limited to the following examples in any way.

[0062] <Test Example 1> (Examples 1 to 13, 18 to 24, Comparative Examples 1 to 8) According to the formulation shown in Table 1 or Table 2, the components were mixed to prepare a stock solution. 14.9 g of the obtained stock solution was filled into an aerosol glass test bottle (volume 100 mL), and the set bottle valve was attached to close the aerosol glass test bottle. Next, 16.8 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant to obtain a specimen. The volume ratio of the stock solution to the propellant was stock solution:propellant = 40:60.

[0063] (Examples 14 to 17) According to the formulation shown in Table 1, each component was mixed to prepare a stock solution. 20.1 g of the obtained concentrate was filled into an aerosol glass test bottle (volume 100 mL), and the set bottle valve was attached to close the aerosol glass test bottle. Next, 14 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant to obtain a specimen. The volume ratio of the concentrate to the propellant was concentrate:propellant = 50:50.

[0064] The raw material components used are as follows: Silicon dioxide A: "Toxil NP" manufactured by Oriental Silicas Corporation, average particle size 10.3 μm Silicon dioxide B: AGC Si-Tech Co., Ltd. "Sunsphere H-31", average particle size 3 μm Talc: "MICRO ACEP-3" manufactured by Nippon Talc Co., Ltd., average particle size 5μm Calcium carbonate: "SL-1000" manufactured by Takehara Chemical Industry Co., Ltd., average particle size 3 μm Trimethylsiloxysilicate A: "BELSIL TMS 803" manufactured by Wacker Asahi Kasei Silicone Co., Ltd. Trimethylsiloxysilicate B: "MQ-1600" manufactured by Dow Toray Industries, Inc. Trimethylsiloxysilicate / polypropylsilsesquioxane: "MQ-1640" manufactured by Dow Toray Industries, Inc. Methylpropylene glycol acetate: "MFG-AC" manufactured by Nippon Nyukazai Co., Ltd. Decaglyceryl monooleate: "NIKKOL DECAGLYN 1-OV" manufactured by Nikko Chemicals Co., Ltd. Alkyl aralkyl modified silicone: "Release Agent TN" manufactured by Asahi Kasei Wacker Silicone Co., Ltd. Isopropyl alcohol ·ethanol ·acetone Hexane ·toluene Isoparaffin: ExxonMobil "Isopar L" Naphthene: Exxon Mobil "Exxol D80"

[0065] 1. Evaluation of Settling Velocity The specimen was turned upside down and shaken five times to disperse the inorganic powder, then placed on a horizontal table. The time it took for the inorganic powder to settle and the resulting transparent liquid layer to account for one-third of the entire liquid layer was measured as the settling time, and evaluated according to the following criteria. [Evaluation Criteria] Excellent "A": Settling time 60 seconds or more Good "B": Settling time is between 16 and 60 seconds Acceptable "C": Sinking time is between 12 and 16 seconds Unacceptable "D": Settling time less than 12 seconds

[0066] 2.Caking evaluation The specimen was turned upside down and shaken five times to disperse the inorganic powder, then placed on a horizontal table and left to stand in a 25°C environment for one day. After that, the specimen was tilted 90 degrees and turned on its side to check the condition of the inorganic powder, and evaluated according to the following evaluation criteria. [Evaluation Criteria] Excellent "A": No caking. Good "B": Caking has occurred, but the liquid remains fluid when the test bottle is tilted. Unacceptable "C": Caking has occurred and there is no fluidity even when the test bottle is tilted.

[0067] The test results are shown in Tables 1 and 2.

[0068] [Table 1]

[0069] [Table 2]

[0070] The results in Tables 1 and 2 show that by including silicone powder together with the inorganic powder as an active ingredient, the dispersibility of the inorganic powder is improved and redispersibility is also excellent.

[0071] <Test Example 2> (Examples 25 to 37, Comparative Examples 9 to 13) According to the formulation shown in Table 3 or Table 4, each component was mixed to prepare a stock solution. 14.9 g of the obtained stock solution was filled into an aerosol glass test bottle (volume 100 mL), and the set bottle valve was attached to close the aerosol glass test bottle. Next, 16.8 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant to obtain a specimen. The volume ratio of the stock solution to the propellant was stock solution:propellant = 40:60.

[0072] (Examples 38 to 42, Comparative Example 14) According to the formulation shown in Table 4, each component was mixed to prepare a stock solution. 20.1 g of the obtained concentrate was filled into an aerosol glass test bottle (volume 100 mL), and the set bottle valve was attached to close the aerosol glass test bottle. Next, 14 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant to obtain a specimen. The volume ratio of the concentrate to the propellant was concentrate:propellant = 50:50.

[0073] 1. Evaluation of settling rate and caking The settling rate and caking were evaluated in the same manner as in Test Example 1. The results are shown in Tables 3 and 4.

[0074] [Table 3]

[0075] [Table 4]

[0076] The results in Tables 3 and 4 show that by containing a solvent having a hydroxyl group or a ketone group together with the inorganic powder as the active ingredient, the dispersibility of the inorganic powder is improved and the redispersibility is also excellent.

[0077] <Test Example 3> (Examples 43 to 44, Comparative Example 15) According to the formulation shown in Table 5, each component was mixed to prepare a stock solution. 14.9 g of the obtained stock solution was filled into an aerosol glass test bottle (volume 100 mL), and the set bottle valve was attached to close the aerosol glass test bottle. Next, 16.8 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant to obtain a specimen. The volume ratio of the stock solution to the propellant was stock solution:propellant = 40:60. Incidentally, Example 43 and Comparative Example 15 have the same formulations as Example 26 and Comparative Example 9, respectively.

[0078] 1. Evaluation of settling rate and caking The settling rate and caking were evaluated in the same manner as in Test Example 1. The results are shown in Table 5.

[0079] 2. Gecko repellency test For smooth walls with few bumps and grooves on buildings where geckos have been spotted, 2 Each specimen was treated at a speed of 1 m / s from a distance of 50 cm within the range of 100 cm (treated area). The amount of inorganic powder attached in the treated area was 0.0075 mg / cm 2 For comparison, the wall of the same building was 2 The area was designated as the untreated area. After one day, the number of geckos appearing in the treated and untreated areas was counted, and then 30 minutes later, the number of geckos was counted again. The average number of geckos was calculated, and the gecko repellency rate was calculated based on the following formula (1). The results are shown in Table 5. Repellency rate (%) = {1 - number of geckos in the treated area / (number of geckos in the treated area + number of geckos in the untreated area)} × 100 (1)

[0080] [Table 5]

[0081] The results in Table 5 show that the inclusion of at least one of a solvent having a hydroxyl or ketone group and silicone powder improves the dispersibility and redispersibility of the aerosol composition, and although silicone powder is slightly inferior in terms of repellency against squamate animals, all of them achieved a repellency rate of 80% or more. Furthermore, in the case of Example 43, the repellency rate was about 90% even three weeks after the treatment, demonstrating that the product exhibits a sustained excellent repellent effect against squamate animals. In addition, since Examples 43 and 44 have excellent dispersibility and redispersibility of the aerosol composition, it is predicted that the effect will not vary not only in the early stage of use but also towards the end of use, and the compositions can be used easily.

[0082] <Test Example 4> (Examples 45 to 46, Comparative Example 16) According to the formulation shown in Table 6, each component was mixed to prepare a stock solution. 149 g of the obtained concentrate was filled into an aerosol tin can (can capacity 792 mL), and a valve was attached to close the aerosol tin can. Next, 168 g of LPG (pressure at 20°C: 0.34 MPa) was pressurized and filled as a propellant, and a spray button was attached to obtain a specimen. The volume ratio of the concentrate to the propellant was concentrate:propellant = 40:60. The valve and spray button were selected so that the amount of spray per unit when sprayed for 30 seconds at 25°C would be approximately 1.8 g / second. The formulations of the preparations in Examples 45 to 46 and Comparative Example 16 are the same as those in Examples 43 to 44 and Comparative Example 15, respectively.

[0083] 1. Gecko Intrusion Drop Test The geckos used were Asian house geckos (Hemidactylus platyurus) with a body length of 8 cm or more. As the initial sample, an unused sample immediately after filling with the concentrate and propellant was used. As the final sample, the sample used was one that had been shaken vigorously up and down five times at 25°C, immediately left to stand while being sprayed continuously for 30 seconds, and then returned to 25°C after spraying, after which this cycle was repeated five times. Each sample was shaken vigorously up and down five times and then sprayed evenly over the upper half (1.0 m x 1.0 m area) of a transparent glass plate 1.0 m wide and 2.0 m high from a distance of 50 cm for 3 seconds, and then air-dried to create the test area. The glass plate was set upright with the test area at the top, and the gecko was released into the lower half of the glass plate, which had not been treated with the specimen. When the gecko entered the test area, it was checked whether it fell or not. The results are shown in Table 6.

[0084] [Table 6]

[0085] From the results in Table 6, it was confirmed that geckos could not invade the test area not only in the early stage of use but also toward the end of use in Examples 45 and 46. This shows that the squamate repellent of the present invention can be used without variation in effectiveness from the early stage to the end of use.

[0086] Although the present invention has been described in detail and with reference to specific embodiments, it is apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the present invention. This application is based on a Japanese patent application (Patent Application No. 2019-221168) filed on December 6, 2019, the contents of which are incorporated herein by reference.

Claims

1. The aerosol composition is in the form of an aerosol formulation, the aerosol formulation being formed by filling a pressure-resistant container with a concentrate and a propellant. The stock solution contains an inorganic powder as an active ingredient, at least one of a solvent having a hydroxyl group or a ketone group and a silicone powder, and a non-polar solvent; The inorganic powder is at least one selected from the group consisting of silica, calcium carbonate, and talc, and has an average particle size of 1 to 20 μm; When the stock solution contains the solvent having a hydroxy group or a ketone group, the content ratio of the solvent having a hydroxy group or a ketone group to the nonpolar solvent is, in terms of mass ratio, hydroxy group or ketone group / nonpolar solvent=0.04 to 1.1; When the original solution contains silicone powder, the content ratio of the inorganic powder to the silicone powder is, in terms of mass ratio, inorganic powder / silicone powder=2 to 75. Squamate repellent.

2. 2. The squamata repellent according to claim 1, wherein the solvent having a hydroxyl group or a ketone group is at least one selected from the group consisting of alcohols having 2 to 4 carbon atoms and acetone.

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