JPH07206604A - Aerosol composition for pest control - Google Patents

Abstract

PURPOSE:To obtain an aerosol composition for pest control presenting a homogeneous W/O emulsion when shaked prior to use, causing no separation of the active ingredient(s) and the solvent during use, and capable of spraying the active ingredient(s) in a uniform concentration. CONSTITUTION:This composition comprises (A) oil-soluble insecticidal ingredient and/or miticidal ingredient, e.g. pyrethroid-, carbamate-, organophosphorus-based insecticide(s), (B) a dispersion auxiliary consisting of at least one kind among compounds of formula I (RCO is a 8-15C saturated fatty acid residue; R' and R'' are each a 6-20C saturated fatty acid; n is 1-10) and/or compounds of formula II (RCO is 11-18C unsaturated fatty acid residue), (C) water, (D) an oily solvent such as an aliphatic hydrocarbon, aromatic hydrocarbon or alcohol, and (E) a propellant. The proportions for the respective components are as follows: A: 0.1-10 (w/v)% based on D, B: 1.0-15 (w/v)% based on D, [(A+B+D): C]= (1:29) to (1:1), and [(A+B+C+D):E]= (9:1) to (1:9).

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to pest control aerosol compositions. Specifically, an oil-soluble active ingredient such as an insecticide and / or an acaricide is dissolved in an oil solvent,
At the time of use, the aerosol composition is shaken and used by dispersing water in an oily solvent. The present invention relates to a shaking type pest control aqueous aerosol composition for controlling pests.

[0002]

2. Description of the Related Art Conventionally, the use of an insecticide diluted with water has already been carried out in an aqueous emulsion or the like. Various studies have also been conducted on aqueous aerosol compositions. For example, JP-A-55-43140 discloses an aqueous aerosol formulation in which a mixing ratio of gas (LPG), a surfactant and water is specified, and JP-A-6-43140.
No. 3-267704 is selected from pyrethroid insecticides, polyoxyethylene-based surfactants in which the number of moles of polyoxyethylene added is 15 to 30, and soap-based surfactants (such as alkylbenzene sulfonic acid). An aqueous pyrethroid insecticidal composition using a surfactant is disclosed in JP-A-1-190609, wherein a pyrethroid insecticide having 3-phenoxybenzyl, a carbamate compound or an organic phosphorus agent, and a lower alcohol solvent 5-20. An insecticidal propellant in which a specific pressure-resistant container is filled with a composition comprising a propellant containing water and dimethyl ether in the amount of 1%, and Japanese Patent Application Laid-Open No. HEI-1.
No. 258607, one or more compounds are selected from each of the pyrethroid group 1 and the other pyrethroid group 1, and an organic solvent (lower alcohol, glycols, etc.) and a buffering agent are added to the compound. From 7.0 to 9.0
Although an aerosol insecticide having dimethyl ether as a propellant prepared in the above is shown, it is not shown at all about the composition of the present invention.

Various studies have been conducted on the applications of N-long-chain acyl-L-glutamic acid / polyoxyethylene (n mol) higher alcohol ether diester and pyroglutamic acid monofatty acid glyceryl. For example, skin cosmetics, hair styling products, shampoos, soaps, cloudy lotions, cloudy hair lotions and cloudy hair tonics (JP-A-49-63683, JP-A-50-154440).
JP-A-56-55307) and the like, but the use of the composition for controlling pests is not described at all.

[0004]

In recent years, there is a demand for a more environmentally friendly drug containing a small amount of oil components in consideration of the environment. However, since many insecticidal and acaricidal components are oil-soluble, they have been dissolved in oil-based solvents,
It has been sprayed or sprayed in various ways. The ULV method, which has been carried out by pest control companies, is one of the spraying methods that uses the least amount of oil. This requires the use of a dedicated injection device, and since this device is expensive, the ULV method is not used in ordinary households. Therefore, as described above, aqueous aerosol compositions have been studied so far, but a sufficient formulation has not been made in terms of dispersibility of the active ingredient in water or solubility in an oil solvent.

On the other hand, in the case of aerosol preparations, the high pressure gas control method has been revised due to the complete abolition of CFC gas, and flammable gases can be used in more situations. On the contrary, flammability or explosiveness at the time of use is considered. There is a need to do so. In other words, it is required to have lower flammability or explosiveness, or shorter flame length. Therefore, the aqueous aerosol composition has many advantages from this point as well, and the demand from the market is high. However, it is very difficult to form an aqueous aerosol that stably maintains a state in which an organic solvent in which an insecticidal component and the like are dissolved and water are uniformly dispersed.

The present invention aims to obtain an aqueous aerosol composition which eliminates these drawbacks. A further object of the present invention is to obtain an aqueous aerosol composition capable of stably maintaining a state in which an organic solvent in which an insecticidal component and the like are dissolved and water are uniformly dispersed during spraying.

[0007]

Therefore, the present inventors have studied an aqueous aerosol composition containing an oil-soluble insecticidal ingredient and / or an acaricidal ingredient as an active ingredient, and more specifically, an oil-soluble insecticidal ingredient and / or a killing agent. An oily solution in which a tick component is dissolved,
As a result of studying an aqueous aerosol composition composed of a dispersion aid (surfactant), water and a propellant, a specific surfactant is used to obtain a uniform W / O by shaking at the time of use.
The present invention was completed by preparing an aqueous aerosol composition capable of obtaining an emulsion of.

That is, the present invention has achieved the above object by the following means. (1) In an aerosol composition composed of an active ingredient comprising an oil-soluble insecticidal component and / or acaricidal component, a dispersion aid, water, an oily solvent and a propellant, the following general formula (1) and / or Alternatively, an aerosol composition for controlling pests, which comprises at least one compound represented by (2).

[0009]

[Chemical 5]

(RCO: residue of saturated fatty acid having 8 to 15 carbon atoms, R ', R ": saturated fatty acid having 6 to 20 carbon atoms,
n: 1 to 10)

[0011]

[Chemical 6]

(RCO: Residue of unsaturated fatty acid having 11 to 18 carbon atoms)

(2) In an aerosol composition comprising an active ingredient comprising an oil-soluble insecticidal component and / or acaricidal component, a dispersion aid, water, an oily solvent and a propellant, the dispersion aid is at least N-lauroyl-glutamic acid. An aerosol composition for controlling pests, which comprises polyoxyethylene (5 mol) 2-octyldodecyl ether diester and / or glyceryl monooleate pyroglutamate.

(3) Oil-soluble insecticidal and / or acaricidal active ingredient, water, dispersant, oily solvent,
An aerosol composition comprising a rust preventive agent and a propellant, containing at least one compound represented by the following general formula (1) and / or (2) as a dispersion aid, and a pest. Control aerosol composition.

[0015]

[Chemical 7]

(RCO: residue of unsaturated fatty acid having 8 to 15 carbon atoms, R ', R ": saturated fatty acid having 6 to 20 carbon atoms,
n: 1 to 10)

[0017]

[Chemical 8]

(RCO: Residue of unsaturated fatty acid having 11 to 18 carbon atoms)

(4) An active ingredient comprising an oil-soluble insecticidal component and / or an acaricidal component, a dispersion aid, water, an oily solvent,
An aerosol composition comprising a rust preventive agent and a propellant, wherein the dispersion aid contains at least lauroylglutamic acid polyoxyethylene (5 mol) octyldodecyl ether diester and / or pyroglutamic acid monooleic acid glyceryl ester. Control aerosol composition.

(5) An aerosol composition for controlling pests, wherein the rust preventive agent described in (3) or (4) above is sodium benzoate or sodium nitrite.

In the present invention, one of the oil-soluble insecticidal components is a pyrethroid compound. For example, d
-Phenothrin (3-phenoxybenzyl d-cis /
Trans-chrysanthate), permethrin (3-phenoxybenzyl dl-cis / trans-2,2-dimethyl-3- (2 ', 2'-dichlorovinyl) -cyclopropanecarboxylate), resmethrin ((5-benzyl -3-furyl) methyl dl-cis / trans-
Chrysanthemate), allethrin (dl-3-allyl-)
2-methyl-4-oxo-2-cyclopentenyl dl
-Cis / trans-chrysanthemate), phthalthrin ((N-3,4,5,6-tetrahydro-phthalimido) methyl dl-cis / trans-chrysanthemate), empentrin (1-ethynyl-2-methyl-2).
-Pentenyl dl-cis / trans-chrysanthemate), 1-ethynyl-2-ethyl-2-pentenyl-
2,2,3,3-Tetramethyl-cyclopropanecarboxylate, 1-ethynyl-2-methyl-2-pentenyl-2,2-dimethyl-3- (2 ', 2'-dichlorovinyl) -cyclopropanecarboxy Rate, d, d-pralethrin (d-2-methyl-4-oxo-3-propargylcyclopent-2-enyl d-cis / trans-chrysanthemate), tefluthrin (2,3,5,6)
-Tetrafluoro-4-methylbenzyl-3- (2'-
Chloro-3 ′, 3 ′, 3′-trifluoro-1-propenyl) -2,2-dimethylcyclopropanecarboxylate), benfluthrin (2,3,5,6-tetrafluorobenzyl-3- (2,2) -Dichlorovinyl) -2,
2-dimethylcyclopropanecarboxylate), terrarethline (3-allyl-2-methyl-4-oxocyclopent-2-enyl 2,2,3,3-tetramethylcyclopropanecarboxylate) and isomers of these compounds , Derivatives and analogs, and one or more compounds selected from these pyrethroid compounds can be blended in the pest control aerosol composition.

Still other oil-soluble insecticidal components include organophosphorus insecticides and carbamate insecticides. Examples of organophosphorus insecticides include fenitrothion, chlorpyrifos, marathon, dichlorvos, pyridafenthion and triclophone, and examples of carbamate insecticides include carbaryl, benfracable, propoxur and the like.

As a compound (general synergist) that enhances the insecticidal efficacy of pyrethroid compounds as one of the oil-soluble insecticidal components, for example, piperonyl butoxide,
Octachlorodipropyl ether, N- (2-ethylhexyl) -1-isopropyl-4-methylbicyclo [2,2,2] oct-5-ene-2,3-dicarboximide, isobornylthiocyanoacetate and N
One or more compounds selected from-(2-ethynyl) -bicyclo [2,2,1] -hepta-5-ene-2,3-dicarboximide and the like are added to the pest control aerosol composition. You can also

Examples of oil-soluble acaricidal components in the present invention include the following oil-soluble acaricides other than the pyrethroid compounds, organophosphorus insecticides and carbamate insecticides. For example, octachlorodipropyl ether, N- (2-ethylhexyl) -1-isopropyl-4-methylbicyclo [2,2,2] oct-5
-Ene-2,3-dicarboximide, isobornylthiocyanoacetate, N- (2-ethynyl) -bicyclo [2,2,1] -hepta-5-ene-2,3-dicarboximide, benzyl Mixtures of benzoates and fatty acid esters, N, N-diethyl-m-toluamide, trihaloimidazole derivatives, hinoki, cedar and hiba essential oils, menthol, yellowfin extract, citrus peel and seed extract, aromatic sulfone Amide derivatives, tricyclohexyltin hydroxide, isopropyl 4,4'-dibromobenzylate, 2,3-dihydro-2,2-dimethyl-7
-Benzo [b] furanylni-N-dibutylaminothio-
N-methylcarbamate, silane compound, cinnamic acid derivative, cinnamyl acetate, bufluofezine, isoprothiolane, paraoxybenzoic acid ester, iodinated formal, phenols, phthalic acid ester, 3-bromo-
2,3-Iodo-2-propenyl-ethyl carbonate, monoterpene ketones, monoterpene aldehydes, monoterpene epoxides, benzyl salicylate, phenyl salicylate and the like, and isomers, derivatives and analogs of these compounds Etc. are used, and at least one active ingredient selected from these oil-soluble insecticidal components and / or acaricidal components can be blended in the pest controlling aerosol composition.

The dispersion aid in the present invention is represented by the general formula (1) and / or (2), and particularly N-long chain acyl-L-glutamic acid / polyoxyethylene (nmol) higher Examples thereof include alcohol ether diesters and pyrrolidone glutamic acid monofatty acid glyceryl. The long-chain acyl residue of N-long-chain acyl-L-glutamic acid / polyoxyethylene (nmol) higher alcohol ether diester has 10 to 20 carbon atoms.
Examples of the saturated or unsaturated fatty acids include lauric acid (C12), palmitic acid (C16), oleic acid (C18) and stearic acid (C18). Higher alcohols include octyl alcohol (C8). ), Dodecyl alcohol (C12), stearyl alcohol (C18), etc., and the degree of polymerization (n) of polyoxyethylene is preferably in the range of 1 to 10. In addition, the fatty acid of pyrrolidone glutamic acid monofatty acid glyceryl includes saturated or unsaturated fatty acids having 10 to 20 carbon atoms, such as lauric acid (C12), palmitic acid (C16), oleic acid (C18) and stearic acid ( C18) etc. can be illustrated. And as this compound, for example, N-lauroyl-glutamic acid-polyoxyethylene (2 mol) 2-octyldodecyl ether diester, N-lauroyl-glutamic acid-
Examples thereof include polyoxyethylene (5 mol) 2-octyldodecyl ether diester and glyceryl oleate pyroglutamate. In general, these dispersion aids are composed of a mixture having a different degree of polymerization as with other polymer compounds, or a by-product compound. And, the name of the mixture is conveniently indicated by the name of the most abundant compound in the mixture. For this reason, in the present invention, those named above as the dispersion aid are not only the surfactants sold under these names, but also compounds whose properties or specifications are the same as those of the products described below. Is also included. For example, in the case of N-lauroyl-glutamic acid / polyoxyethylene (5 mol) 2-octyldodecyl ether diester, N-lauroyl-glutamic acid / polyoxyethylene (5 mol) 2-octyldodecyl ether diester shows almost the same properties as those of Amitel LGOD-5 of Nippon Emulsion, and pyroglutamic acid glyceryl oleate is amyl. There is no limitation as long as it shows substantially the same properties as Fat P-30. Further, it may be mixed with other dispersion aids, that is, nonionic surfactants and amphoteric surfactants, for example, sorbitan sesquioleate, polyoxyethylene (2 mol) laurylate, diglyceryl monooleate and hexa. Examples thereof include glyceryl polyricinolate. In this case, the compound name of the dispersion aid is the same as that of the above dispersion aid.

In the present invention, the oily solvent is not limited as long as it is an oily solvent which has been conventionally used for aerosol compositions. For example, hexane, kerosene, kerosene, n-pentane, iso-pentane, cyclopentane, and other aliphatic hydrocarbons; benzene, toluene, xylene, and other aromatic hydrocarbons; dichloromethane, carbon tetrachloride, and other halogenated hydrocarbons. Alcohols such as ethanol, isopropyl alcohol, ethylene glycol; ethers such as acetone, methyl ethyl ketone, diethyl ether; esters such as ethyl acetate; nitriles such as acetonitrile; acid amides such as dimethylformamide; soybean oil, cottonseed oil And vegetable oils, etc., and one or more compounds selected from these oily solvents can be blended.

In the present invention, examples of the propellant (including the pressure regulator in the container) include liquefied petroleum gas (LPG), propane, n-butane, iso-butane, n-pentane,
iso-pentane, cyclopentane, Freon 134a
(Boiling point −26.2 ° C.), Freon 143a (boiling point −47.
3 ° C), Freon 152a (boiling point-24.1 ° C), Freon 125 (boiling point-48.5 ° C), Freon 23 (boiling point-8)
2.0 ° C.), Freon 32 (boiling point −51.7 ° C.), difluoromethane, octafluoropropane, 1,1,1,
Examples include 4,4,4-hexafluorobutane, 2-trifluoromethyl-3,3,3-trifluoropropane, dimethyl ether, nitrogen gas and liquefied carbon dioxide gas. In particular, when liquefied petroleum gas is used as compared with dimethyl ether having high hydrophilicity which is used in the aqueous aerosol composition, the influence of the dispersion aid becomes stronger. As water in the present invention, deoxygenated water or the like may be used in addition to conventionally used purified water or deionized water. Particularly when deoxygenated water is used, it is also useful from the viewpoint of rust prevention of the aerosol composition container.

In the present invention, the mixing ratio of the active ingredient, dispersion aid, oily solvent, water and propellant can be exemplified as follows. First, the active ingredient is 0.1 to 10 with respect to the oily solvent.
(W / v)% and a dispersion aid of 1.0 to 15 (w / v)% can be blended to prepare an oily stock solution. What is composed of the above-mentioned active ingredient, dispersion aid and oily solvent is referred to as "oil stock solution". And as the ratio of mixing this oily stock solution with water,
Oily stock solution: water mixture ratio (dose ratio) of 1:29 to 1: 1
Can be illustrated. The mixing ratio (dose ratio) of undiluted solution (mixed solution of oily undiluted solution and water): propellant in the aerosol composition is preferably 9: 1 to 1: 9. Particularly, when the propellant is liquefied petroleum gas, the mixing ratio (dose ratio) of undiluted solution: propellant is 7:
3 to 3: 7 is shown.

On the other hand, in the case of using purified water or deionized water as the water of the present invention as described above, when the aerosol container is stored for a long time, rust is generated on the inner wall of the aerosol container and deteriorates, and finally a hole is formed. There is a risk that the contents will open and the contents will gush out, so it is necessary to add a rust preventive agent to prevent this. Examples of the rust preventive agent include rust preventive agents such as sodium benzoate, sodium nitrite, sodium citrate, and ammonium citrate, and sodium benzoate is particularly preferable. The amount of the rust preventive compounded varies depending on the rust preventive compounded, but is 0.1 to 5.0% by weight, preferably 0.1 to 5.0% by weight, relative to the water of the pest control aerosol composition of the present invention. 1.0 wt% can be blended, for example, 0.1 to 0.5 wt% can be blended when sodium benzoate is used. On the other hand, when using a container in which the inner wall of the container for storing the pest control aerosol composition of the present invention is coated with various synthetic resins, it is not necessary to consider the viewpoint of rust, so the rust inhibitor Need not be compounded.

In addition to the insecticidal component and the acaricidal component of the present invention, various chemicals can be added. For example, pests and rodent repellents, bactericides, fungicides, deodorants, fragrances,
A coloring agent or the like can also be blended, and as a pest and rodent repellent, 2,3,4,5-bis (δ-butylene)-
Tetrahydrofurfural, N, N-diethyl-m-toluamide, di-n-propylisocincolmate, di-
n-Butyl acetic acid, 2-hydroxyethyl octyl sulfate, 2-t-butyl-4-hydroxyanisole, 3-
T-butyl-4-hydroxyanisole, cycloheximide, β-nitrostyrene cyanoacrylonitrile, tributyltin hydrochloride, trinitrobenzene-aniline complex, naphthalene, and the like are used as bactericides or fungicides.
2,4,4'-Trichloro-2'-hydroxydiphenyl ether, 2,3,5,6-tetrachloro-4-
(Methylsulfonyl) pyridine, alkylbenzylmethylammonium chloride, benzylmethyl- {2-
[2- (p-1,1,3,3-tetramethylbutylphenoxy) ethoxy] ethyl} ammonium chloride,
4-Isopropyltropolone, N, N-dimethyl-N '
-Phenyl-N '-(fluorodichloromethylthio) sulfonamide, 2- (4'-thiazolyl) benzimidazole, N- (fluorodichloromethylthio) -phthalimide, 6-acetoxy-2,4-dimethyl-m-dioxin, isopropyl Methylphenol, O-phenylphenol, p-chloro-m-xylenol, etc. are used, as deodorant, lauric acid methacrylate, etc., and as fragrance, essential oil component of rush, citronella, lemon, lemongrass, Orange, eucalyptus, lavender, etc. can be added.

Further, when an active ingredient which is remarkably decomposed depending on the pH value is blended, a buffer component for adjusting the pH, for example, monosodium phosphate-disodium phosphate, ammonium benzoate-hydroxylation. sodium,
Sodium benzoate-benzoic acid, ammonium benzoate-ammonia water, ammonium benzoate-benzoic acid, dipotassium phosphate-sodium hydroxide, sodium hydroxide-sodium dimaleate, tris maleate-sodium hydroxide, sodium carbonate -Adding a combination such as sodium bicarbonate to water to bring the pH value from 7.0 to 9.
It is preferably 0.

The pests in the present invention include pests and indoor dust mites that live indoors and outdoors. Examples of the pests that live indoors and outdoors include sanitary pests and daily pests. For example, sanitary pests include cockroaches (Green cockroaches, Black cockroaches, American cockroaches, etc.), flies (housefly, blowfly, fleshfly, etc.),
Mosquitoes (such as mosquitoes, mosquitoes, mosquitoes), lice, fleas, and the like, and as living pests, termites (feather ants), black ants, spiders, wasps, beetles, centipedes, gecked geese, millipedes, horned bees, scutellaria, Examples thereof include chironomid, butterfly flies, stink bugs, leafhoppers, bark beetles, pill bugs, wall worms, spots, squids, koga, cuticles of worms and nukaka. Furthermore, as indoor dust mites, mites that propagate and multiply indoors, or as mites that enter the room, for example, Dermatophagoides farinae mites such as Dermatophagoides farinae, Dermatophagoides farinae, Pseudomonas aeruginosa, Tick mites such as Staphylococcus acaridae, Tick mites such as dust mites, etc. Examples thereof include animal mites such as phytoseiid mites, pest mites such as Plutus mite and Minami mites, dust mites, mite mites, house mites, house dust mites, trichomes, mites, ticks and the like.

The aerosol composition container filled with the pest control aerosol composition of the present invention has a push button injection port diameter of 0.3 to 0.8 mm and a stem hole inner diameter of 0.
A container having a diameter of 3 to 1.0 mm and an inner diameter of the under tap of 0.3 to 2.2 mm is preferable. When the composition of the present invention is filled in such an aerosol composition container, first, an active ingredient consisting of an oil-soluble insecticidal component and / or an acaricidal component, a dispersion aid and an oil solvent are thoroughly mixed. Stir and place this in the container. Next, add water or water containing a buffer component and / or an antirust agent, and tightly fix the housing cap with the valve to the container,
Further, a pest control aerosol can be prepared by filling a propellant.

When the pest controlling aerosol filled with the pest controlling aerosol composition of the present invention thus prepared is used, the pest controlling aerosol is shaken several times to obtain the active ingredient. After mixing the oily solvent and the propellant with dissolved water and dispersing them to a state close to a W / O emulsion, they can be used in the same manner as a usual insecticidal aerosol composition.

[0035]

It is very difficult to uniformly disperse the oil-soluble solvent in which the oil-soluble insecticidal component and / or the acaricidal component is dissolved and water, and to maintain the state in a stable manner.
In the present invention, by using a specific dispersion aid, an oil-soluble insecticidal component and / or acaricidal component in an oil-soluble solvent that has been conventionally used can be sufficiently supplied for a relatively short period of time such as a jetting time. It can be dispersed. Also,
Even if a propellant is added and used, the insecticidal effect is equivalent or higher. Further, in other dispersion aids different from the dispersion aid in the aerosol of the present invention, the addition of an anticorrosive agent lowers the emulsifying power and shortens the time for uniform dispersion, but in the composition of the present invention such No phenomenon is seen.

[0036]

EXAMPLES The pest control aerosol of the present invention will be described in more detail by the following test examples and formulation examples.
However, the present invention is not limited to the examples.

Test Example a. Surfactant selection test The composition used in the prescription test was a No. 1 kerosene solution containing 3.0% neopinamine f (d-T80 phthalthrin) and 0.4% krysulone f (d-T80 resmethrin) as active ingredients.
ml and various dispersion aids 3.14 g, and then filled up to 50 ml with No. 1 kerosene to obtain an oily solvent composition (comprising the above-mentioned active ingredient, oily solvent and dispersion aid)
Was prepared. Then, 5.0 ml of the oily solvent composition, 15.0 ml of purified water and 30.0 ml of LPG were filled in an aerosol container to prepare each aerosol composition. The following compounds were used as the dispersion aids used. Polyoxyethylene is abbreviated as POE. Dispersion aid a: glyceryl oleate pyroglutamate (trade name: Amifat P-30, manufactured by Ajinomoto Co., Inc.) Dispersion aid b: lauroyl glutamate POE (5) octyldodecyl ether (trade name: Amitel LGOD-
5, manufactured by Nippon Emulsion Co., Ltd. Dispersion aid c: Lauroylglutamic acid POE (5) stearyl ether (trade name: Amitel LGS-5, manufactured by Nippon Emulsion Co., Ltd.) Dispersion aid d: Diglyceryl monooleate (product) Name: N
IKKOL DGMO-90, Memitsu Keimical Co., Ltd. Dispersion aid e: POE (8) diisostearyl ether (trade name: 400di-IS, Nippon Emulsion Co., Ltd.)
Dispersion aid f: POE (12) diisostearyl ether (trade name: 600di-IS, Nippon Emulsion Co., Ltd.)
Dispersion aid g: POE (20) glyceryl triisostearyl ether (trade name: GWIS-320, manufactured by Nippon Emulsion Co., Ltd.)

B. Method and Results b-1. Solubility At room temperature, about 50 ml of the oily solvent composition was placed in a 100 ml glass beaker and stirred well with a glass rod.
After allowing to stand, the degree of white turbidity was visually observed for each surfactant used in the oily solvent composition shown in Table 1. As a result, transparently dissolved products are shown in the table by "⊚", slightly clouded products are shown by "○", and separated products are shown by "x".

B-2. Emulsifying Aerosol composition is filled in a 100 ml pressure-resistant glass test bottle (manufactured by Nippon Kobunshi Co., Ltd.) and shaken vigorously by hand for about 50 times, and after 24 hours at room temperature, water and oil layer (including LPG) separate. Or? Alternatively, the presence or absence of precipitates was visually observed for each surfactant used in the aerosol composition shown in Table 1. As a result, those without water separation are shown in the table as "○", and those not tested are shown as "-" in the table.

B-3. Gas miscibility The aerosol composition was filled in a 100 ml pressure-resistant glass test bottle, shaken by hand for about 50 times, and allowed to stand,
The "gas layer 50% separation" time was measured for each surfactant used in the aerosol compositions listed in Table 1. As a result, those which were not separated even after 30 seconds or more are shown in the table as "O", and those which were not tested are shown as "-". "5 gas layers
The state of "0% separation" means that the liquid layer in the 100 ml pressure-resistant glass test bottle was separated into two layers, an upper transparent layer and a lower cloudy layer, before shaking, and the liquid layer was shaken. A uniform cloudy layer is formed. By standing still thereafter, the upper layer of the liquid layer gradually changes to a transparent layer, and about half of the liquid layer changes to a transparent layer.

B-4. Stimulation The aerosol composition was filled in a 100 ml pressure-resistant glass test bottle and shaken vigorously by hand, and then a hollow cylinder (inner diameter 20 x
The aerosol composition was sprayed in a height of 40 cm) for about 1 second, and within about 10 seconds after the injection, the face was brought close to the upper surface of the cylinder and a deep breath was taken from the nose to confirm the feeling of the stimulus. Those that were found as a result are indicated by "○", and those that were not tested are indicated by "-".

B-5. Results From the tests b-1, 2, 3 and 4 above, the dispersion aid a
Although good results were obtained in the cases of b and b, the dispersion aid c was separated immediately after the dissolution, so no judgment was made except for the dissolution test.

[0043]

[Table 1]

C. Change in emulsifying power by addition of rust preventive agent The aerosol composition used in the test was neopinamine f75 mg and chryslon f10 mg as active ingredients, neothiozole (manufactured by Chuo Kasei Co., Ltd.) 5 ml and various dispersion aids 0.2 g.
After mixing, 15 ml of deionized water and 225 mg of sodium benzoate were added and then placed in the aerosol container. After installing the aerosol injection part in the container, LPG
50 ml of each aerosol composition was prepared by filling 30 ml of the aerosol container. Then, the pressure resistant glass test bottle was tumbled by hand until it was emulsified, and the number of times of tumbling was measured, and the results are shown in Table 2. Furthermore, the test bottle filled with the aerosol composition was allowed to stand for one day and night to separate into two layers, and then shaken by hand three times, and immediately after that, 0 to 5 and 5
Each time after 5 to 60 and 295 to 300 seconds, the aerosol composition was injected into 15 ml of acetone, and the injection amount (g) and the content of d-T80 phthalthrin in acetone were measured. The method for quantifying d-T80 phthalthrin is the Insecticide Guideline, 1990 edition (p.
90)). The results are shown in Table 2, and in the table, the number of falls and the content of d-T80 phthalthrin were calculated as an average of two times.

[0045]

[Table 2]

D. Insecticidal test An aerosol composition for controlling pests shown in Table 3 was prepared and filled in a pressure resistant container (valves and buttons were manufactured by Maruichi Co., Ltd.). Then, the insects tested with each pest control aerosol are houseflies ( Musca domestica )
Approximately 20 adults (male / female = 1/1) of the Denken system (those raised by Earth Pharmaceutical Co., Ltd.) were gauged (250 x 25).
0x250mm) and put in the chamber (360x3
60 × 270 cm) at a position of about 100 cm from the ceiling, and the pest control aerosol composition is jetted toward the gauge for about 1.5 seconds from a position of about 75 cm in horizontal distance from the center of the gauge, and The number of knockdowns of the housefly was measured to determine KT50 (time (minute) until 50% of the test insects lie down), and the mortality rate after 24 hours was measured. The results are shown as an average of three times.

[0047]

[Table 3]

[0048]

INDUSTRIAL APPLICABILITY The aerosol composition for controlling pests of the present invention is shaken at the time of use, whereby the oily solvent containing the active ingredient is quickly and uniformly dispersed in the aqueous system. The active ingredient and the solvent (including the oily solvent, water and the propellant) are not separated during use, and the active ingredient is sprayed at a uniform concentration, so that an effective aerosol can be formed. Further, in terms of efficacy, the effect was equal to or more than that of the conventional oil solvent. Further, with other dispersion aids, the addition of a rust preventive agent lowers the emulsifying power and shortens the time of uniform dispersion, but the pest control aerosol composition of the present invention does not lower the emulsifying power and is not added. The effect is the same as the case.

Claims (5)

[Claims] 1. An aerosol composition comprising an active ingredient comprising an oil-soluble insecticidal component and / or an acaricidal component, a dispersion aid, water, an oily solvent and a propellant, and the following general formula (1) as a dispersion aid: And / or at least one compound represented by (2) is contained, and a pest controlling aerosol composition characterized by the above-mentioned. [Chemical 1] (RCO: a saturated fatty acid residue having 8 to 15 carbon atoms,
R ', R ": saturated fatty acid having 6 to 20 carbon atoms, n: 1 to 10) (RCO: Residue of unsaturated fatty acid having 11 to 18 carbon atoms) 2. An aerosol composition comprising an active ingredient comprising an oil-soluble insecticidal component and / or an acaricidal component, a dispersion aid, water, an oily solvent and a propellant, wherein the dispersion aid is at least N-lauroyl-glutamic acid. An aerosol composition for controlling pests, which comprises polyoxyethylene (5 mol) 2-octyldodecyl ether diester and / or glyceryl monooleate pyroglutamate. 3. An aerosol composition comprising an active ingredient comprising an oil-soluble insecticidal ingredient and / or an acaricidal ingredient, a dispersion aid, water, an oil solvent, a rust preventive and a propellant, and the following general composition as a dispersion aid: An aerosol composition for controlling pests comprising at least one compound represented by formula (1) and / or (2). [Chemical 3] (RCO: a residue of an unsaturated fatty acid having 8 to 15 carbon atoms,
R ', R ": saturated fatty acid having 6 to 20 carbon atoms, n: 1 to 10) (RCO: Residue of unsaturated fatty acid having 11 to 18 carbon atoms) 4. An aerosol composition comprising an active ingredient comprising an oil-soluble insecticidal component and / or an acaricidal component, a dispersion aid, water, an oil solvent, a rust preventive and a propellant, wherein the dispersion aid is at least lauroylglutamic acid. An aerosol composition for controlling pests, which comprises polyoxyethylene (5 mol) octyldodecyl ether diester and / or glyceryl monooleate pyroglutamate. 5. An aerosol composition for controlling pests, wherein the rust preventive agent according to claim 3 or 4 is sodium benzoate or sodium nitrite.