ES2586949B1 - Improvement of the control method for harmful arthropods, composition and electrostatic spray device - Google Patents

Abstract

Certificate of addition of the patent P201230024: Method of control of harmful arthropods, composition and electrostatic spray device. The present certificate of addition describes a method for controlling a harmful arthropod using an ester compound having a specific structure, according to formula (1). With the method of this certificate of addition it is possible to control a wide variety of harmful arthropods effectively, without carrying out any heating process (for example, a smoking process) to spray the composition or any pressure process (for example, a gas pressure process or a mechanical pressure process) to spray the compositions.

Description

PATENT ADDICTION CERTIFICATE P201230024: CONTROL METHOD HARMFUL ARTS, COMPOSITION AND DEVICE OF SPRAYING ELECTROSTATICS

5 DESCRIPTION Certificate of addition of patent P201230024: Control method for harmful arthropods, composition and electrostatic spray device

Technical field

10 The purpose of this certificate of addition refers to (i) a method of control of an artificial arthropod such as a flying insect, to (ii) a composition and to (jii) an electrostatic spray device.

Prior art

It is known that the ester compound represented by the following formula (1), is effective in controlling a pest.

Formula 1)

20 In this certificate of addition described herein, pests that are targets to be controlled, more specifically, arthropods including insects, are referred to as "harmful arthropods" in some cases. In addition, in the present specification, the phrase "control a harmful arthropod"; means change

25 the action of the harmful arthropod repelling, attracting, knocking down or destroying the harmful arthropod. In addition, the phrase "effective in contracting" means providing an active constituent in an amount such that the action of the harmful arthropod can be changed.

Generally, in order to control a damaging arthropod, an active constituent is diffused that has an effect of controlling the artificial arthropod through a heating process (such as a smoking process), a pressure process (such as a gas pressure process and a mechanical pressure process), or the like, so that the damaging arthropod and the active constituent are caused to be in contact with each other either directly or indirectly and either continuously or intermittently .

In addition, an electrostatic spray technique used for this purpose is already known from the state of the art (see below the patent literature 5 and the non-patent literature 1, for example). According to the electrostatic spray technique, a Taylor cone of a liquid is formed, and then liquid particles of the liquid are sprayed from one end of the Taylor cone.

List of mentions [Patent bibliography]

[Patent bibliography 1]

Japanese Patent Application Publication, Tokukaihei, No. 11-222463 A (1999) (publication date: August 17, 1999) [Patent Bibliography 2] Japanese Patent Application Publication, Tokukaisho, No. 49-54529 A (1974 ) (publication date: May 27, 1974)

[Patent bibliography 3]

Japanese patent application publication, Tokukaisho, no 63-203649 A (1988) (publication date: August 23, 1988) [Patent bibliography 4] Japanese patent application publication, Tokukaisho, no 53-91125 A (1978 ) (publication date: August 10, 1978)

[Patent bibliography 5]

European Patent Application Publication Report No. 1399265

[Non-patent bibliography] [Non-patent bibliography 1] Proceedings 01 the Royal Society -1964, p383-397

Summary of the Invention Technical Problem There is currently a demand for (i) a control method of a harmful arthropod 5 by effectively spraying an ester compound represented by the aforementioned formula (1) and (ii) a composition that can be effectively sprayed .

This certificate of addition is made in view of the aforementioned problems. An object of this certificate of addition is to provide a control method for a harmful arthropod, a method that makes it possible to carry out a control process

10 effectively without carrying out any heating process (for example, a smoking process) to spray a composition or no pressure process (for example, a gas pressure process or a mechanical pressure process) to spray the composition. In addition, another object of the present certificate of addition is to provide a composition that can be used to control a wide variety of arthropod classes

15 harmful. Furthermore, yet another object of the present certificate of addition is to provide an electrostatic spray device that (i) can easily spray the composition of the present certificate of addition without carrying out any heating process to spray the composition or no pressure process to spray the composition, and (ii) can carry out an arthropod control process

20 harmful effectively.

Solution to the problem In order to achieve the object, a method of this certificate of addition, to control a harmful arthropod, includes the step of: electrostatically spraying, when

Potential arthropod or an area in which the harmful arthropod inhabits, a composition in an amount that is effective in controlling the harmful arthropod, the composition containing an ester compound represented by the following formula (1):

Formula 1)

In addition, a composition of the present certificate of addition includes an ester compound represented by the following formula (1), the composition (i) having an electrical resistance of not less than 1 x 103 nm but not more than 1) (106 Om a a temperature of

5 20 ° C, (ii) a viscosity of not less than 1 mPa · s but not more than 10 mPa · s at a temperature of 20 ° C, and (iii) a surface tension of not less than 20 mN / m but not more than 40 mN / m at a temperature of 20 ° C:

Formula 1 )

Advantageous effect of this certificate of addition According to a method of control of this certificate of addition, it is possible to carry

15 carry out a control process effectively without carrying out any heating process (for example, a smoking process) to spray a composition or no pressure process (for example, a gas pressure process or a mechanical pressure process) to spray the composition. Furthermore, according to a composition of the present certificate of addition, it is possible to control a wide variety of classes of harmful arthropods.

In addition, according to an electrostatic spraying device of the present certificate of addition, it is possible (i) to spray the composition of the present invention easily without carrying out any heating process to spray the composition or no pressure process to spray the composition, and (ii) carry out a process of controlling a harmful arthropod effectively.

Brief Description of the Drawings Figure 1 Figure 1 is a view schematically illustrating a spray device

electrostatic which is used to spray a composition according to an embodiment of the present certificate of addition.

Description of realizations

An embodiment of this certificate of addition is described below.

A composition of the present certificate of addition is suitably used in a method of the present embodiment, to control a risky arthropod, as described below. The composition of the present embodiment contains (i) an ester compound represented by the formula (1) and (ii) a dispersion medium. A substance that can be used as a dispersion medium may contain a dispersion medium (hereinafter referred to as the "physical properties adjustment component" in some cases) that has an adjustment function of a physical property of the composition (such as electrical resistance, viscosity and super voltage).

(Ester compound)

The composition of the present embodiment contains an ester compound represented by the formula (1). The ester compound is a compound that has an excellent control effect of a harmful arthropod.

The ester compound represented by the formula (1) is 2-methyl-4oxo-3- (2 -propin i 1) -2-cyclope ntenyl carboxylate = 2,2-d imeti1-3- (2 -m ethyl- 1-propeni I) cyclopropane. The ester compound represented by formula (1) can be prepared according to a method described in Japanese patent application publication, Tokukaisho, No. 49-54529 A (1974), for example.

As the ester compound represented by formula (1), there are (i) isomers derived from two asymmetric carbon atoms that exist in a cyclopropane ring and

(ii) isomers derived from an asymmetric carbon atom that exists in a five-membered ring. The ester compound of the present invention may contain such active isomers at an arbitrary content ratio.

An amount of such an ester compound in the composition is not less than about 0.1% by mass but not more than about 10% by mass, preferably not less than 0.6% by mass but not more 8% by mass, more preferably not less than 1.0% by mass but not more than 6% by mass.

(Dispersion medium)

The composition of the present embodiment contains a dispersion medium that causes the ester compound represented by the formula (1) to dissolve or disperse. The dispersion medium is a solvent (such as an organic solvent) or a mixture of solvents (such as a mixture of organic solvents). The solvent can be either a polar solvent or a non-polar solvent. Generally, a polar solvent is suitably used as the solvent.

In the present embodiment, in order to spray the composition effectively, an electrostatic spray device is used to (i) cause the composition to be in a form of small, stable droplets (described below) and (ii) to spray such droplets. Therefore, it is desirable that the composition have the following properties:

(i) a compound represented by the formula (1) is dispersed or dissolved uniformly in the composition, (ji) the composition has an appropriate electrical resistance, an appropriate viscosity and an appropriate surface tension, and (iii) the dispersion medium is Low toxicity

Appropriate examples of the dispersion medium of the composition include (i) a dispersion medium containing a polyol having at least one hydroxyl group per molecule (such as ethyl alcohol, propylene glycol, triethylene glycol, glycerin, polyethylene glycol and polypropylene glycol), and ( ii) a dispersion medium containing a polyether having at least one hydroxyl group per molecule (such as glycol ether (for example, glycol methyl ether)). As a polyether, dipropylene glycol methyl ether in particular is suitably used. Particularly suitable examples of the polyether, other than dipropylene glycol methyl ether, include propylene glycol methyl ether and tripropylene glycol methyl ether.

Other than these, the dispersion medium may be acetic ester of 1-methoxy-2-propanol, 1-butoxy-2-propanol, 1-propoxy-2-acetoxypropane or an oxybis (methoxy) propane.

The amount of such a dispersion medium in the composition is preferably not less than 65% by mass but not more than 99.9% by mass, more preferably not less than 65% by mass but not more than 99% by mass. mass, more preferably in addition to not less than 70% by mass but not more than 95% by mass. It is possible that the amount of such a dispersion medium in the composition is not less than 90% by mass but not more than 99% by mass, and it is also possible that an amount of such a dispersion medium in The composition is not less than 90% by mass but not more than 99.9% by mass.

There is a case in which the dispersion medium used in the composition of the present embodiment serves as an adjustment component of the physical properties. By using a physical properties adjustment component of this type appropriately, it is possible to adjust a physical property of the composition of the present embodiment. In this case, it is possible to use either an individual physical property adjustment component or a plurality of physical property adjustment components in combination with each other.

Examples of the physical properties adjustment component include an ester solvent, a petroleum solvent (such as a paraffinic solvent, an aromatic solvent and a naphthenic solvent) (for example, Isopar L (registered trademark ', silicone oil ( such as decamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and a mixture thereof), polyethylene glycol, water and dilute aqueous solution of an electrolyte (such as a dilute aqueous solution of sodium hydrogen carbonate, sodium acetate, sodium chloride, ascorbic acid, citric acid or acetic acid).

For example, in some cases, by adding isoparaffin (such as Isopar L) to the composition, it is possible to reduce the surface tension of the composition. In the present specification, a component that has an effect of adjusting the surface tension of the composition is referred to as the "surface tension adjustment component"; Note that the composition may contain isoparaffin in an amount in a range of 0% by mass to 9.99% by mass, for example.

In addition, in some cases, adding to the composition polyethylene glycol ("PEGquot;) having an average molecular weight of more than 200 Da (for example, a relatively low average molecular weight of not less than 200 Da but not more than 700 Da ), it becomes possible to adjust the viscosity of the composition. In the present specification, a component that has a viscosity adjustment effect of the composition is called "viscosity adjustment component" in some cases.

In addition, by adding an electrolyte to the composition, it is possible to adjust the electrical resistance of the composition. In the present specification, a component that has an effect of adjusting the electrical resistance is called "resistivity adjustment component", in some cases. An appropriate electrolyte used for this purpose in this technical field is known. For example, the electrolyte may be a dilute aqueous solution of alkanoic acid salt such as a dilute solution of sodium acetate (for example, a 0.4% solution of sodium acetate by mass), or the dilute aqueous solution of the electrolyte mentioned above.

In addition, a dispersion medium (resistivity adjustment component) that can be used to adjust the electrical resistance of the composition may be a surfactant (such as a non-ionic surfactant, an ampholytic surfactant, an anionic surfactant and a cationic surfactant).

5 Examples of the non-ionic surfactant that may be contained in the composition of this certificate of addition include sorbitan fatty acid ester (such as sorbitan stearate and sorbitan oleate), glycerin fatty acid ester (such as glyceryl stearate, glyceryl isostearate, glyceryl oleate, poly (glyceryl stearate), poly (glyceryl isostearate) and poly (glyceryl oleate), polyoxyethylene alkyl ether (such as

10 polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene ethylene ether and polyoxyethylene styrylphenyl ether), polyoxyethylene sorbitan fatty acid fatty acid ester (such as polyoxyethylene sorbitan sorbitan polyoxyethylene sorbitan polyoxyethylene sorbitan polyoxyethylene sorbitan polyoxyethylene ether) of polyoxyethylene sorbitan), and fatty acid ester of polyoxyethylene sorbitol (such as polyoxyethylene sorbitol tetraoleate). Others

Non-ionic surfactants other than these may be hydrogenated polyoxyethylene castor oil, alkylphenol polyglycol ether or the like.

Examples of the ampholytic surfactant that may be contained in the composition of the present embodiment include betaine (such as lauryl betaine and stearyl betaine), and imidazoline derivatives (such as disodium N-Iauryl-p-iminodipropionate). Other than

20 these, the ampholytic surfactant can be lecithin or the like. Examples of the anionic surfactant that may be contained in the composition of the present embodiment include alkyl sulfate (such as sodium lauryl sulfate and triethanolamine lauryl sulfate), polyoxyethylene alkyl ether sulfate such as (polyoxyethylene lauryl ether sulfate sulfate and polyoxyethylene lauryl ether sulfate ), alkylbenzenesulfonate (such as

Sodium dodecylbenzenesulfonate) and polyoxyethylene alkyl ether phosphate (such as dipolioxyethylene lauryl ether phosphate and sodium dipolioxyethylene oleyl ether phosphate). Examples of the cationic surfactant that may be contained in the composition of the present embodiment include alkylammonium salt (such as cetyltrimethylammonium chloride and distearyl dimethyl ammonium chloride).

In addition, as a dispersion medium that can be used to adjust the electrical resistance of the composition of the present embodiment, it is possible to add, to the composition of the present embodiment, quaternary amine salt other than those described above, a preservative and chlorhexidine salt (such as chlorhexidine digluconate), and / or

other air cleaning agents (including those disclosed herein). Furthermore, in a case where the dispersion medium is a polyether, the properties of the composition described above meet the conditions described.

5 above. For this reason, it is preferable that (i) the composition contains (1) an ester compound represented by the formula (1), and (11) the dispersion means for dispersing the at least one of the ester compounds, and ( ii) the dispersion medium contains the following: (a) a low vapor pressure component containing (1) at least one compound selected from the group consisting of a polyether represented by the

The following general formula (6) (hereinafter, simply referred to as "polyol ether"), and a dibasic ether, and, optionally, (2) dipropylene glycol; (b) a resistivity adjustment component, and, optionally, (c) a surface tension adjustment component. Note that the resistivity adjustment component and the surface tension adjustment component serve as the adjustment component of the

15 physical properties of the present specification.

... (6)

In addition, it is preferable that such a composition has a vapor pressure of less than 14 Pa at a temperature of 20 ° C. In the specification and the claims of the subject application, the expression

20 "vapor pressure"; means measured vapor pressure for a composition from which an arbitrary aqueous component is excluded, vapor pressure that is measured according to method 310 of the Air Resources Board (quot; Air Resource Board, ARBquot;), quot; Determination of compounds Volatile Organic Compounds "in volatile products"; (ARB method 310). Note that the "VOCquot; It is an organic compound that

25 bulle, at a conventional pressure, at a temperature in a range of up to about 260 ° C. According to the composition of the present embodiment, the low vapor pressure component contains (i) at least one compound selected from the group consisting of a polyether and a dibasic ester and, optionally, (ii) dipropylene glycol. That is, the component

The low vapor pressure contains, as an essential component, one of, or both of a polyether and a basic di ester and, if necessary, may additionally contain dipropylene glycol as an optional component.

In the aforementioned general formula (6) representing the polyether, R 1 is an alkyl group 1 to C 4, and the alkyl group 1 to C 4 can be a linear, branched or cyclic alkyl group. Note, however, that it is preferable that the alkyl group e1 to C4 is a linear or branched alkyl group. Specifically, the examples of the alkyl group e1 to

C4 encompasses a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobulyl group, a sec-butyl group and a tert-butyl group. Furthermore, in the general formula (6) mentioned above, n is 2 OR 3. Note, however, that in a case where n is 2, R1 is not a methyl group. Examples of the polyether include dipropylene glycol ethyl ether, n-propyl ether of

10 dipropylene glycol (hereinafter, simply referred to as "OPnPquot ;, in some cases), n-butyl ether of dipropylene glycol, methyl ether of tripropylene glycol, ethyl ether of tripropylene glycol and n-propyl ether of tripropylene glycol. Among these, dipropylene glycol n-propyl ether is suitably used as a polyether. It is possible to use either a polyether class or two or more kinds of

15 polyether in combination with each other. Examples of the dibasic ester (hereinafter, simply referred to as "OBEquot ;, in some cases) encompass dimethyl glutarate and dimethyl adipate. It is possible to employ a dibasic ester class or two or more dibasic ester classes.

20 in combination with each other. According to the present certificate of addition, it is preferable that the dibasic ester is at least one class selected from the group consisting of dimethyl glutarate and dimethyl adipate. In a case where the dibasic ester is a mixture of dimethyl glutarate and

In dimethyl adipate, it is preferable that the content ratio of dimethyl glutarate in the mixture is not less than 5% by mass but not more than 80% by mass with respect to the total amount of the mixture, and the ratio of dimethyl adipate content is not less than 20% by mass but not more than 95% by mass with respect to the total amount of the mixture.

The amount of the low vapor pressure component in the composition of the present embodiment is not less than 10% by mass but not more than 98.9% by mass, preferably not less than 75% by mass but not more than 98.9% by mass with respect to the total amount of the composition.

In a case where the composition of the present embodiment contains the polyether, the amount of the polyether in the composition is not less than 10% by mass but not more than 99.9% by mass, preferably not less than 20% by mass but not more than 95% by mass, more preferably not less than 30% by mass but not more than 90% in

5 mass with respect to the total amount of the composition.

In a case where the composition of the present invention contains the dibasic ester, the amount of the dibasic ester in the composition of the present invention is not less than 10% by mass but not more than 99.9% by mass, preferably of not less than 20% by mass but not more than 95% by mass, more preferably of not less than 30% in

10 mass but not more than 90% by mass with respect to the total amount of the composition.

In a case where the composition of the present invention contains dipropylene glycol, the amount of dipropylene glycol in the composition of the present invention is not less than 10% by mass but not more than 99.9% by mass, preferably not less 20% by mass but not more than 95% by mass, more preferably not less

15 of 30% by mass but not more than 90% by mass with respect to the total amount of the composition.

As a resistivity adjustment component, it is possible to use a component that has a resistivity adjustment effect of the composition, a component known to one skilled in the art. Examples of the resistivity adjustment component include

20 the resistivity adjustment components described above.

For example, water contains an electrolyte in a significantly small amount, and usually has a resistivity of not less than 1 x 10 'O: m, more usually a resistivity of not less than 1 x 103 O: m, additionally more normally a resistivity of not less than 1 x 104 O: m, most usually a

25 resistivity of not less than 1 x 105 O: m. For example, water is likely to have a resistivity of not less than 1 x 106 O: m, or not less than 1 x 107 Qm. According to this certificate of addition, it is preferable that the water used as a resistivity adjustment component has a purity equal to or greater than that of deionized water, or that of water.

The electrolyte can be added to the composition as an aqueous solution, for example. Examples of the electrolyte encompass the electrolytes described above. In a case where the composition of the present certificate of addition contains the electrolyte, the amount of the electrolyte in the composition is preferably not less than

0.5% by mass but not more than 10% by mass, more preferably not less than 1% by mass but not more than 8% by mass with respect to the total amount of the composition. It is possible to use either one class of resistivity adjustment component or two or more kinds of resistivity adjustment component in combination with each other.

In a case where the composition of the present certificate of addition contains the resistivity adjustment component, the amount of the resistivity adjustment component in the composition is preferably not less than 0.5% by mass but not more than 5% by mass, more preferably not less than 0.7% by mass but not more than 4.5% by mass, additionally more preferably not less than 1% by mass but not more than 4% by mass with respect to the total amount of the composition.

Examples of the surface tension adjustment component include isoparaffin (such as Isopar L), and silicone oil (such as decamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and mixture thereof).

It is possible to use either one kind of surface tension adjustment component or two or more kinds of surface tension adjustment component.

In a case where the composition of the present certificate of addition contains the surface tension adjustment component, the amount of the surface tension adjustment component in the composition is not less than 0.5% by mass but not more 10% by mass, preferably not less than 1% by mass but not more than 10% by mass, more preferably not less than 2% by mass but not more than 10% by mass, additionally more preferably not less than 3 % by mass but not more than 10% by mass with respect to the total amount of the composition.

The composition of the present certificate of addition may contain another component other than the ester compound, the low vapor pressure component, the resistivity adjustment component and the surface tension adjustment component.

Examples of the other component include a viscosity adjustment component. For example, by adding polyethylene glycol or glycerin described above to the composition, it is possible to increase the viscosity of the composition.

In addition, the composition of the present certificate of addition may contain a fluorescent agent in a small amount such that the fluorescent agent has no significant influence on a complete property of the composition. For example, the composition of this certificate of addition may contain 1% by mass or less of Uvitex-OB or the like.

In a case where such a composition has a vapor pressure of less than 14 Pa at a temperature of 20 ° C, the composition used to control a damaging arthropod would comply with the regulations on the content of the vacuum. For example, according to the Consumer Production Regulation, (Article 2) of California in the US, none

5 person must sell, supply, offer for sale or manufacture for sale in California any consumer product that, at the time of its sale or manufacture, contains volatile organic compounds in excess of the specified limits. The composition described above may comply with such regulations. In order to measure the physical properties of the composition described above,

lThe following methods and devices are used. First, the electrical resistance of the composition can be measured by using a resistivity meter (pH / ION / COND METER F-55, manufactured by HORIBA, Ud.) With a liquid resistivity cell. The unit of a value obtained through measurement is quot; MO · mquot ;.

In addition, the surface tension of the composition can be measured by the use of

a contact angle / surface tension meter (DM-501, manufactured by Kyowa Intertace Science Co., LTD) whose measurement principle is based on a hanging drop method. The unit of a value obtained through the measurement is "mN / m";

In addition, the viscosity of the composition can be measured by using a

20 rotational viscometer (RB85L, manufactured by TOKI SANGYO CO., LTD.). The unit of a value obtained through measurement is quot; mPa · squot ;. As a measurement method, a method according to the norm "JIS Z8803 Viscosity of liquids-measurement methods" can be used. The diameter of the liquid droplets of the composition, obtained after spraying the

25 composition, can be measured as "average particle diameter"; by using a particle size distribution measuring device (Aero Particle Sizer Model 3321, manufactured by TSI Instruments Inc. or Scanning Mobility Particle Sizer Model 3936, manufactured by TSI Instruments Inc.). The unit of a value obtained through the measurement is "n mquot; or quot; Ilmquot ;. Note that, for an average particle diameter of not less than

30 100 nm but not more than 500 nm (i.e. 0.5 pm), the value obtained by using the 3936 model was used, while for an average particle diameter of more than 0.5 pm but not more of 10 I-lm, a value obtained by using the 3321 model was used. The electrical resistance of the composition can be adjusted appropriately so that the electrical resistance is not less than 1 x 103 Om but not more than 1 x 106 Om to one

20 ° C temperature. In addition, the viscosity of the composition can be adjusted appropriately so that the viscosity is not less than 1 mPa · s but not more than 10 mPa · s at a temperature of 20 ° C. In addition, the surface tension of the composition can be adjusted appropriately so that the surface tension is not less than 20 mN / m but not more than 40 mN / m at a temperature of 20 ° C. By setting the composition to have properties at the intervals described above, it is possible to successfully spray the composition by using an electrostatic spray device (described below).

In addition to the components described above, the composition used in the present invention may also contain a perfume or an air cleaning agent, as an additional component.

The perfume can be an essential oil or other fragrance oil, for example. As a perfume, it is possible to use only a part of all fractions (oil components) contained in such an oil.

More specifically, preferable examples of the perfume include Melaleuca oil, tea tree oil (such as terpinen-4-ol), nébeda oil (such as Nepeta Cateria and a refined oil of Nepeta Cateria), a fraction of nebeda (such as a fraction containing nepetalactone), thyme oil (such as a Thymus Vulgaris oil) and a fraction of thyme oil (such as a fraction containing thymol).

In addition, perfume such as a fragrance oil is normally, for example, (i) a mixture of different classes of compounds, whose main structures are different from each other in chain length, or (ii) a mixture containing different kinds of stereoisomeric forms. It is possible that the composition contains such a fragrance oil.

Among the examples described above, the perfume preferably includes an oil component of at least one class selected from the group consisting of tea tree oil, nebeda oil and thyme oil.

In a case where the composition of the present invention contains a fragrance oil, the amount of the fragrance oil in the composition is preferably in the range of 5% by mass to 35% by mass with respect to the total amount of the composition.

In addition, it is preferable that the fragrance oil has a vapor pressure of no more than 270 Pa at a temperature of 20 ° C.

Specific examples of the air cleaning agent include an active air cleaning component, an active antibacterial component, an active antifungal component and an active antialergenic component.

In this document, the "active air cleaning component"; It is a substance that has deodorizing activity. The quot; actibacterial component activequot; It is a substance that has bacterial growth inhibitory activity. The quot; active component antifungal; It is a substance that has fungal growth inhibitory activity. The quot; active allergy componentquot; It is a substance that inhibits the allergenic activity of an allergen.

As such an air cleaning agent, it is possible to use either (i) a substance that develops a single function between the functions described above (i.e., one of the functions of the air cleaning component, the active antibacterial component, the component active antifungal and active antialergenic component) or (ii) a substance that is expected to develop a plurality of functions among the functions described above. Specifically, preferable examples of the substance that is expected to develop, as an air cleaning agent, such a plurality of functions, encompass a poly (hexamethylene biguanide) polymer, a poly (hexamethylguanide) polymer, alkyldimethylbenzylammonium chloride, chloride of octylcycloldimethylammonium, chlorhexidine, chlorhexidine digluconate, benzalkonium chloride, sodium hypochlorite, 2-phenylphenol, polyethylene glycol 300, 2-benzyl-4-chlorophenol, 2-phenoxyethanol, glutaraldehyde, phthalaldehyde, chloroxyphenol, trichlorophenyl, silver water-soluble silver salt), hexachlorophen, peracetic acid, lactic acid, perforic acid, potassium permanganate and potassium peroxonosulfate.

In a case where the composition of the present certificate of addition contains the air cleaning agent, the amount of the air cleaning agent in the composition is preferably not less than 0.05% by mass but not more than 20% by mass, more preferably not less than 0.1% by mass but not more than 17% by mass, additionally more preferably not less than 0.1% by mass but not more than 15% by mass with respect to the amount Total composition.

Examples of the active antibacterial component include triclosan, trichlorocarbanilide, isopropylmethylphenol, N- (dichlorofluoromethylthio) -phthalamide, N '(dichlorofluoromethylthio) N, N'-dimethyl-N'-phenyl-sulfamide, polyoctylpolyaminoethylglyzole, 2- chloroglozine, 2- Bromo-2-nitroethanol, 2-bromo-2-nitropropane-1,3-diol, 2-bromo-2-nitropropanol, 1-bromo-1-nitropropanol, 1, 4-dibromo-1, 4-dinitrobutanediol-2,3- cetylpyridinium, 1-bromo-1-nitro-2-methylpropanol-2-cetylpyridinium, cetylpyridinium chloride, benzethonium chloride, acrinol, povidone iodine, merchurochrome, chloramphenicol, fradiomycin sulfate, gentamicin sulfate, oxytetratin hydrochloride hydrochloride tricomycin and griseofulvin.

Examples of the active antifungal component include benzoic acid, benzoic acid salt, sorbic acid, sorbic acid salt, paraoxibenzoic esters, sodium dehydroacetate, propionic acid, polylysine, thiabendazole, terpenic alcohol (such as linalool, geraniol, nerol, citronellol, a-terpineol, terpinen-4-01 and isopulegol), C7 to C1S alicyclic alcohol (such as 2,4-dimethyl-3-cyclohexene-1-methanol, 4-isopropylcyclohexanol, 4isopropylcyclohexanomethane, 1- (4-isopropylcyclohexol) -ethanol and 2,2-dimethyl-3- (3-methylphenyl) propanol), and C7 to C arylalkyl alcohol, (or C7 to C1S alkylaryl alcohol) (such as benzyl alcohol, phenylethyl alcohol, phenylpropyl alcohol, carvacrol and eugenol).

Examples of the active anti-allergenic component include hydroxyapatite, epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, gallic acid and a gallic acid ester compound and Cl to C4 alcohol.

Examples of the active air cleaning component for deodorization or the like include tannin, polyphenol (such as flavonoid (for example, chalcona, flavanone, flavanol, flavone, flavonol or isoflavone », cyclodextrin, lauryl methacrylate, geranyl chlorinate, 4- hydroxy-6-methyl-3- (4-methylpentanoyl) -2-pyrone, formalin, glyoxal, sodium bisulfite,

sodium sulphite, dihydroxyacetone, 3,5,5-trimethylhexanol, p-ethoxypropionaldehyde, glutaraldehyde, methacrylate ester, maleic acid ester, maleic acid monoamide, maleic acid imide, fumaric acid ester, p-acylacrylic acid, salt of pacilacrylic acid, senecioic acid, citronellyl, 1,3-pentadien-1-carboxylic acid alkyl ester, pineapple hydroperoxide, p-cimeno peroxide, 1,2-propylene oxide, 1,2-butylene oxide, glycidyl ether, sucrose octaacetate, Fe (III) -octacarboxyphthalocyanine, Fe (III) tetracarboxyphthalocyanine, 5-methyl-2-isopropyl-2-hexenol, p-butoxyphenol, catechol, hydroquinone, 4-methylcatechol, 1,2,4- trihydroxybenzene, 3-methylcatechol, 3-methoxicatecol, carnosol, rosmanol, brazilina, hematoxylin, shikonin, myricetin, baicalein, baicalin, citral, vanillin and coumarin.

The composition of the present embodiment may be the following composition, for example. "Ester compound" refers to an ester compound according to formula (1).

[Table 1)

(1) Ester compound (11) Dispersion medium Physics adjustment component in (11)

properties Mass percentage 0.1-10 90-99, 9 0.5-25

In addition, a preferable example of the composition according to the present embodiment may be a composition in which the ester compound and the dispersion medium containing the low vapor pressure component, the resistivity adjustment component and the adjustment component of the surface tension are contained in a content ratio shown in the following table 2.

[Table 2)

Mass percentage

(1) ester compound

0.1-10

(11) Dispersion medium

90-99.9

Low vapor pressure component in (11)

75-98.9

Adjustment component of physical properties

Resistance adjustment component in (11) 0.5-5

Surface tension adjustment component in (11)

0.5-10

More specifically, a preferable example of the composition of the present embodiment may be a composition in which the ester compound and the dispersion medium containing the low vapor pressure component, the resistivity adjustment component and the component of surface tension adjustment are contained in

15 a content ratio shown in any one of the following tables 3 to 6.

[Table 3)

Mass percentage

(1) Compound of this r

0.1-10

(11) Dispersion medium

90-99.9

Compound represented by the general formula (6) (low vapor pressure component) in (11)

10-98.9

Adjustment component of physical properties

0.4% sodium acetate mass solution 0.5-5

Isoparafi na

0-9.99

[Table 4) [Table 5)

Mass percentage

(1) ester compound

0.1-10

( ) Dispersion medium

90-99.9

At least one compound (in (11 "selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether and dibasic ester.

75-99.4

Adjustment component of physical properties

Acetate salt 0.0005-0.1

Water

0.49-4.995

Isoparaffin

0-9.99

Mass percentage

(1) ester compound

0.1-10

(1 1) Dispersion medium

90-99.9

N-propyl ether of dipropylene glycol in (11)

10-89.4

Dibasic ester in (11)

10-89.4

Adjustment component of physical properties

Acetate salt 0.0005-0.1

Water

0.49-4.995

Isoparaffin

0-9.99

[Table 6)

Mass percentage

(1) ester compound

0.1-10

(11) Dispersion medium

90-99.9

N-propyl ether of dipropylene glycol in (11)

10-89.4

Dibasic ester in ( )

10-45

Adjustment component of physical properties

Acetate salt 0.0005-0.1

Water

0.49-4.995

Isoparaffin

0-9.99

In addition, in a case where the composition of the present embodiment contains the additional component described above, the composition of the present embodiment contains its components at a content rate shown below. First, in a case where the composition of this certificate of addition contains a

Perfume oil that serves as a perfume component, the composition contains the components at the rate of content shown in the following table 7.

[Table 7]

(1) Ester compound (11) Dispersion medium Physical properties adjustment component in (11) Perfume oil

Mass percentage 0.1-10 30-97.9 0.5-25 2-60

In addition, in a case where the composition of the present embodiment contains, as an additional component, a compound for disinfection, the composition of the present embodiment contains its components at a content ratio shown in the following table 8.

[Table 81

Mass percentage

(1) ester compound

0.1-10

(11) Dispersion medium

70-99.8

Adjustment component of physical properties in (11)

0.5-25

Air cleaning agent

0.1-20

(Harmful arthropod) Examples of a target to be controlled by using the composition

15 of the present embodiment encompass arthropods such as insects and ticks, particularly harmful arthropods such as harmful insects and harmful ticks. Specific examples of the target to be controlled by the use of the composition of the present embodiment are described below.

Lepidoptera: Pyralidae (such as Chilo suppressalis, Cnaphalocrocis medinalis, Plodia interpuncteJ / a and Ephestia kuehnielJa), cogollero worm (such as Spodoptera Jitura, PseudaJetia separata and Mamestfa brassicae), Pieridae (such as Pieris rapaophophia) , Carposinidae, Lyonetiidae, Lymantriidae, Autographa sp., AgroUs spp. (such as Agrotis segetum and Agrotis ¡psi / on), Helicoverpa spp. , Heliothis spp. , Plutella xylostella, Parnara guttata, Tinea translucens, Tineola bissellieJla, etc.

Diptera: Cu / ex (such as Cu / ex pipiens pallens and Culex tritaeniorhynchus), Aedes (such as Aedes aegypti and Aedes albopictus), Anophe / es (such as Anophe / es sinensis), Chironomidae, Muscidae (such as Musca domestica, Muscina stabulans and Fannia canicularis), Calliphoridae, Sarcophagidae, Anthomyiidae (such as Delia platura, Delia antiqua), Tephritidae, Agromyzidae, Drosophilidae, Psychodidae, Phoridae, Tabanidae, Simuliidae, Stomoxyini, Ceratopogonidae, etc.

Dictoptera: BlaHella germanica, Periplaneta fuliginosa, Periplaneta amerícana, Periplaneta brunnea, BlaHa orientalis, etc.

Hymenoptera: Formicidae (such as Camponotus japonícus, Tetramorium tsusMmae, Lasius japonicus, Pachycondyla chinensis, Monomorium intrudens, Lasius fuji, Monomorium pharaosis, Formica fusca japonica, Ochetellus glaber, Pristomyrmex pungens, Pheidole nois Polistesis, Pheidole polistesis, Pheidole nois Polistesis, Pheidole nois Polis, Pheidole polistes, Pheidole nois polis, Pheidole nois Pheidoleis, Pheidole nois Polis, Pheidole nois, Pheidole polistesis, Pheidole nois Pisidopis, Pheidole nois Polis, Pheidole nois, Pheidole polistes, Pheidole nois Pheidoleis, Pheidole polistes, Pheidole nois, Pheidole polistesis antennalis, Polistes riparius, Polistes jadwigae, Polistes rothneyi, Polistes nipponensis, Polistes snelleni and Polistes japonicus), Vespidae (such as Vespa mandarinia japonica, Vespa simillima, Vespa analis insularis, Vespa crabro, Vespa ducaviceula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapsula, Vesp flapulapula, Vesp flapulapsula ), Betilidae, Tenthredinidae (such as Athalia japonica), etc.

Siphonaptera: Ctenocephalides canis, Ctenocephalides felis, Pulex irritans, etc.

Anopluros, phytotherapists: Pediculus humanus, Phthirus pubis, Pediculus humanus humanus, Pediculus humanus corporis, etc.

Psocópteros: Psocidae.

Isoptera: Underground termites (such as Reticulitermes speratus, Coptotermes formosanus, Reticulitermes flavipes, Reticulítermes hesperus, Reticulitermes virginicus, Reticulitermes tibialis and Heterotermes aureus), dry wood termites (such as Incisitermes minor), wood termites such as humis termites (Zois termites) , etc.

Hemiptera: Delphacidae (such as Laodelphax striatellus, Nilaparvata lugens and Sogatella furcifera), Cicadellidae (such as NephoteHix cincticeps and Nephotetlix virescens), Aphididae, Pentatomidae (such as Nezara antennata key Riptortus your, Eysarcoris lewisi, Eysarcoris Parvus, Plautia Stali, Halyomorpha mista, Stenotus rubrovittatus and

Trigonotylus caelestialium), Aleyrodidae, Coccoidea, Cimicidae (such as Cimex lectularius), Tingidae, Psyllidae, etc. Coleoptera: Corn root worm (such as Attagenus japonicus, Anthrenus verbasci, Diabrotica virgifera virgifera and Diabrotica undecimpunctata howardl), Scarabaeidae

5 (such as Anomala cuprea and Anoma / a rufocuprea), Curculionidae (such as Sitophilus zeamais, Ussorhoptrus oryzophilus, Anthonomus grandis and Callosobruchuys chienensis), Tenebrionidae (such as Tenebrio molitor and Tribolium castaneum), Chrysomelidae Phyloeta or Phyloematae or Phrysomelidae (Chrysomelidae Phyloematae, Phyloematae, Phyloemata, Phyloematae, Phyloemata, Phyloematae, Phyloemata, Phyloematae, Phyloematae, Phyloemata, Phyloema, Striped, Chrysomelidae) / ata and Aulacophora femoralis), Anobiidae, EpiJachna spp. (such as Epilachna vigintioctopunctata), Lyctidae, Bostrychidae, Ptinidae,

10 Cerambycidae, Paederus fuscipes, etc. Thysanoptera: Thrips palmi, Frankliniella occidentalis, Thrips nigropilosus, etc. Orthoptera: Gryllotalpidae, Acrididae, Gryllidae, etc. Mites: Pyroglyphidae (such as Dermatophagoides farinae and Dermatophagoides

ptrenyssnus), Acaridae (such as Tyrophagus putrescentiae and Aleuroglyphus ovatus),

15 Glycyphagidae (such as privates Glycyphagus, Glycyphagus domesticus and Glycyphagus destructor), Cheyletidae (such as Cheyletus malaccensis, Cheyletus malaccesis and Cheyletus Moorel), Tarsonemidae, Chortoglyphidae, Haplochthoniidae, Tetranychidae (such as Tetranychus urticae, Tetranychus kanzawai, Panonychus citri and Panonychus ulmi ), Erythraeidae, Ixodidae (such as Haemaphysalis longicornis), Dermanyssidae (such as

20 Ornithonyssus sylvairum and Dermanyssus gallinae), etc.

Scutigeridae, centipedes (such as Scolopendra subspinipes), diplópodos (such as Oxidus gracilis and Nedyopus tambanus), Armadilldiiidae (such as Armadillidium vulgare), Porcelliionidae, gastropods (such as Lehmannia valentiana and Umax flavusva, Arácncava (Nephranthus clava), arácncava (Nephranthus clava), arácncava (Nephranthus) japonicum and Latrodectus hasseltil),

25 etc.

(Control method) A method for carrying out a process of controlling a harmful arthropod by using the composition described above is such that the composition is

30 electrostatically sprays a target harmful arthropod to be controlled or an area where the harmful arthropod inhabits. Electrostatic spraying is carried out by using an electrostatic spraying device.

In the electrostatic spray device, a liquid flows into a spray electrode that has a tube shape. A voltage is applied across the spray electrode and a reference electrode (discharge electrode) is provided in the vicinity of the spray electrode. This generates an electrostatic force with respect to the liquid flowing inside the spray electrode. Note that the positions of the spray electrode and the reference electrode are not particularly limited relatively. For example, it is also possible to provide the spray electrode and the reference electrode so that they are opposite each other. With the electrostatic force, the liquid inside the spray electrode has electrostatic repulsion, so that it will be divided into fine particles. When the liquid is sprayed, the liquid is subjected to, for example, a cone jet mode at one end of the spray electrode. A spraying method of this type is well known in this field, as published in Geoffrey Taylor, Proceedings of the Royal Society, 1964, p383-397. In addition, it is preferable that the voltage applied through the spray electrode and the discharge electrode is not less than 1 kV but not more than 30 kV.

An appropriate example of the electrostatic spray device is described in European Patent Application Publication No. 1399265. Figure 1 illustrates an example of this type of electrostatic spray device.

The electrostatic spray device illustrated in Figure 1 has an arrangement in which (i) a spray electrode 1 having a tube shape is provided within a depression 2 for the spray electrode 1, depression 2 which is formed in a side surface (spray discharge surface 5) of a main body of the electrostatic spray device, and (ii) a discharge electrode 3 corresponding to the spray electrode 1 is provided within a depression 4 for the discharge electrode 3, depression 4 which is formed on the lateral surface (the spray discharge surface 5) of the main body of the electrostatic spray device. From the spray electrode 1, the composition that is charged is sprayed so that the composition is converted into mist-like particles. A voltage opposite the charge of the composition (the mist-shaped particles) is applied to the discharge electrode 3, so that the mist-sprayed particles are attracted to the discharge electrode 3. That is, the discharge electrode 3 determines the direction in which the mist-shaped particles flow. For example, the spraying electrode 1 includes a metallic gauge 27 or a conductive plastic capillary, while the discharge electrode 3 includes a sharp pointed pin made of stainless steel, which has a diameter of 0.6 mm.

The spray electrode 1 and the discharge electrode 3 are electrically connected to a drive circuit 10 by means of sheathed metal tubes 6 and 7. With the arrangement, it is possible to apply a voltage so that one of the electrodes serves as a positive electrode and the other of the electrodes serves as a negative electrode (for example, the spray electrode 1 serves as a positive electrode, while the discharge electrode serves as a negative electrode).

The spray discharge surface 5 is made of a dielectric material. The spray discharge surface 5 of the electrostatic spray device of the present embodiment is made of polypropylene, for example.

In addition, the spray discharge surface 5 has the depression 2 in which the spray electrode 1 is provided and the depression 4 in which the discharge electrode 3 is provided, so that the depressions 2 and 4 are arranged in a vertical direction (gravitational direction). According to the electrostatic spray device of the present embodiment, the spray discharge surface 5 is a flat surface, except for the parts corresponding to depressions 2 and 4.

Note, however, that the spray discharge surface 5 is not limited to this. The spray discharge surface 5 may be made of another dielectric material and / or may have a curved surface, provided that (i) the mist-shaped composition, sprayed from the spray electrode 1, is sufficiently charged, and therefore (ii) is attracted to the discharge electrode 3 so that the direction in which the mist-like composition flows is determined.

The composition to be sprayed by using the electrostatic spray device is stored in a storage tank 8, and is supplied to the spray electrode 1 by means of a pump (not illustrated) and a conduit (not illustrated). In addition, the storage tank 8 is connected to the outside by means of a small orifice air inlet 9 so that the interior of the storage tank 8 would not be pressurized negatively while the composition is supplied to the spray electrode 1.

Furthermore, in a case where the spraying of the composition is repeated by using the electrostatic spraying device, the composition stored in the storage tank 8 is consumed. In this case, in order to continue using the electrostatic spray device, one of the following first and second arrangements may be used.

The first arrangement is such that the electrostatic spray device can have an arrangement in which the composition can be added to the same storage tank 8. In this case, the storage tank 8 can be removed from the electrostatic spray device. The composition is added to the storage tank 8 after disassembling the storage tank 8 of the electrostatic spray device. Then, the storage tank 8 to which the composition has been provided is attached to the electrostatic spray device again. Alternatively, the storage tank 8 can be fixed to the electrostatic spray device, and the storage tank 8 can have an opening through which the composition can be added to the storage tank 8.

The second arrangement is such that the storage tank 8 is attached to the electrostatic spray device so that it can be exchanged for another storage tank 8. The composition is supplied to the electrostatic spray device such that the storage tank 8 is replaced by another storage tank 8 in which the composition is stored. For example, the electrostatic spray device may be arranged such that a storage tank is provided in which the composition is stored as a separate replacement cartridge, and the separate replacement cartridge may be replaced by another separate replacement cartridge, if it is necessary. In this case, a specific arrangement of the separate replacement cartridge may be that described in the Japanese translation of the international publication peT, Tokuhyo, No. 2008-508150, for example.

Of course, it is possible to arrange the electrostatic spray device so that the electrostatic spray device can no longer be used once all the composition stored in the storage tank 8 is consumed (i.e., the electrostatic spray device has a disposable arrangement).

According to the electrostatic spray device, first, the composition is supplied, from the storage tank 8, to the spray electrode 1 having a tube shape, and a high voltage is applied to the composition in the electrode 1 of spray. Since the composition has an electrical resistance in a predetermined range, as described above, the composition is charged and sprayed from one end of the spray electrode 1 by electrostatic force. The composition sprayed from the spray electrode 1 is electrically charged with a voltage applied to the spray electrode 1. Accordingly, the composition so pulverized is subjected to Coulomb repulsion so that it will be sprayed in the

atmosphere as if it were divided into fine particles. In this case, the composition has, as described above, (i) a viscosity in a predetermined range, and (ii) a surface tension in a predetermined range. The composition can therefore

sprayed successfully, and can be divided into fine particles satisfactorily.

In a case where a voltage is applied to the electrostatic spray device from the drive circuit 10 by, for example, insertion of an electric battery or an operation of a built-in electronic stopwatch, the liquid stored in the storage tank 8 is spray from the spray electrode 1 in the form of fine particles so that the liquid vaporizes instantly according to its vapor pressure and the state of the environment in the vicinity of the electronic spray device. An amount of the liquid so pulverized can be determined according to an amount of the ester compound, an amount that is effective in controlling a harmful arthropod.

The electrostatic spraying device may be arranged to deliver the composition of the present invention either intermittently (for example, at a predetermined charge cycle) or continuously. A rate at which the composition is supplied may be, for example, a maximum amount of 5 9 per day or a maximum amount of 3 g per day. Note, however, that the rate at which the composition is supplied is not limited thereto.

With such an electrostatic spray device, a low volatility constituent of the composition can be accumulated on the spray electrode or in the vicinity of the spray electrode. This is a general problem of an electrostatic spray device. In a case where accumulation of such a constituent occurs, the spray electrode can be partially clogged with or completely blocked with the composition. In this case, there is a risk that electrostatic spraying cannot be carried out effectively, or cannot be carried out at all. The risk is particularly high in a case where the spray electrode is in the form of a narrow tube.

In view of this, the composition of the present embodiment was used as the liquid to be sprayed by using the electrostatic spray device, and was sprayed in a spray condition such that (i) the ester compound in the composition had a relatively high condition (for example, 1.2% by mass of the ester compound) and (ii) spraying was carried out for 14 days at a charge cycle such that the composition was sprayed for 25 seconds every 2 minutes . How

As a result, the spraying was carried out stably without substantial accumulation of the composition on or in the vicinity of the spraying electrode.

The composition subjected to electrostatic spraying is observed as mist-shaped particles. Therefore, it is possible to qualitatively determine the actual presence / absence of the composition so sprayed, visually checking the spray electrode (specifically, the spray electrode 1 illustrated in Figure 1) and an area in the vicinity of the spray electrode.

The quantitative analysis with respect to the electrostatically sprayed composition can be carried out in such a way that (i) the mist-shaped particles are collected in the vicinity of the electrostatic spray device, and (ii) the amount of the compound of ester according to a method suitable for the class of the ester compound thus used (for example, high performance liquid chromatography (HPLC) or a spectrophotometric method).

In addition, quantitative analysis can also be carried out by monitoring a mass change in the entire electrostatic spray device or a mass change of the storage tank (specifically, the storage tank 8 illustrated in Figure 1).

The effect of a control process carried out by using an electrostatic spray device of this type can be analyzed by a number of means known to one skilled in the art. For example, it is possible to quantitatively analyze the period of time that is required to bring down (KD50) or destroy (KT50) 50% of an original population of harmful insects in a test chamber that has a known size (for example, a camera from Peet-Grady).

With such an arrangement, it becomes possible to electrostatically spray the composition to a harmful arthropod or an area in which the harmful arthropod successfully inhabits, a composition that is in a solid form at room temperature. Therefore, the following effects can be achieved.

That is, according to the control method of the present embodiment, electrostatically spraying a composition containing an ester compound represented by formula (1), it is possible to start and / or stop spraying the composition instantaneously, without carrying out any heating process (for example, a smoking process) or no pressure process (for example, a gas pressure process or a mechanical pressure process). Therefore, it becomes easy to adjust an amount of the ester compound thus pulverized, and therefore it becomes possible to suppress the consumption of the

ester compound. According to the control method of the present embodiment, it is therefore possible to carry out a process of controlling a harmful arthropod effectively. Furthermore, according to the control method of the present embodiment, the composition containing an ester compound represented by the formula (1) has (i) a resistance

5 electrical in a predetermined range, (ii) a viscosity in a predetermined range and (jii) a surface tension in a predetermined range. That is, the composition has physical properties that are suitable for electrostatic spraying. Therefore, it is possible to spray the composition satisfactorily, and control a damaging arthropod satisfactorily.

In addition, according to the control method of the present embodiment, using a device that is suitable for electrostatic spraying, it is possible to spray the composition satisfactorily.

Furthermore, according to the composition of the present embodiment, a composition (i) contains an ester compound represented by the formula (1), which is in a form

15 solid at a conventional atmospheric pressure, and (ii) has (a) an electrical resistance in a predetermined range, (b) a viscosity in a predetermined range and (c) a surface tension in a predetermined range. Accordingly, it becomes possible to control a wide variety of classes of harmful arthropods, and to provide the composition that is suitable for electrostatic spraying.

In addition, according to the electrostatic spraying device of the present embodiment, it is possible to spray a composition easily without carrying out any heating process (for example, a smoking process) or no pressure process (for example, a pressure process of gas or a mechanical pressure process). Therefore, with the electrostatic spraying device of the present embodiment, it is

25 possible to adjust an amount of the composition to be easily sprayed. Therefore, it is possible to suppress the consumption of the ester compound which is an active constituent, and to carry out a process to control a harmful arthropod effectively. The present certificate of addition may also be arranged as described below.

The control method of the present certificate of addition is preferably arranged so that the composition has (i) an electrical resistance of not less than 1 x 103 Om but not more than 1 x 106 Om at a temperature of 20 ° C, ( ii) a viscosity of not less than 1 mPa · s but not more than 10 mPa · s at a temperature of 20 ° C and

(jii) a surface tension of not less than 20 mN / m but not more than 40 mN / m at a temperature of 20 ° C. The control method of this additional certificate is preferably arranged so that the composition also contains a dispersion medium

5 containing (i) at least one compound selected from the group consisting of a polyol having at least one hydroxyl group per molecule, a polyether having at least one hydroxyl group per molecule, 1-methoxy-2-propanol acetic ester , 1-butoxy-2-propanol, 1propoxy-2-acetoxypropane and oxybis (methoxy) propane, and (ii) a physical properties adjustment component, an amount of at least one of the ester compounds in the

The composition is not less than 0.1% by mass but not more than 10% by mass with respect to a total amount of the composition, an amount of the dispersion medium in the composition is not less than 90% by mass but not more than 99.9% by mass with respect to the total amount of the composition and an amount of the adjustment component of the physical properties in the composition is not less than 0.5% by mass but not more

15 of 25% by mass with respect to the total amount of the composition.

The control method of the present certificate of addition is preferably arranged so that the composition further contains a dispersion medium for dispersing the ester compound, and has a vapor pressure of less than 14 Pa at a temperature of 20 ° C, containing the dispersion medium (i) a low vapor pressure component containing at least one compound selected from the group consisting of (1) a polyether represented by the following general formula (6) and (11) a basic di ester, Y

(ii) a resistivity adjustment component:

... (6)

(where: R 'is a C, a C4 alkyl group; and n is 2 or 3 (in a case where n is 2, R' is not a methyl group)) The method of controlling the certificate of addition it is preferably arranged so that the low vapor pressure component also contains dipropylene glycol. The control method of the present certificate of addition is preferably arranged so that the dispersion medium also contains a component for adjusting the surface tension. The control method of the present certificate of addition is preferably arranged so that the low vapor pressure component contains at least

a compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol npropyl ether, dipropylene glycol n-butyl ether and a dibasic ester.

The control method of the present certificate of addition is preferably arranged so that the low vapor pressure component contains dipropylene glycol n-propyl ether.

The control method of the present certificate of addition is preferably arranged so that the dispersion medium contains (i) the low vapor pressure component in an amount of not less than 75% by mass but not more than 98.9% in mass with respect to a total amount of the composition, (ii) the resistivity adjustment component in an amount of not less than 0.5% by mass but not more than 5% by mass with respect to the total amount of the composition and (iii) the surface tension adjustment component in an amount of not less than 0.5% by mass but not more than 10% by mass with respect to the total amount of the composition.

The control method of the present certificate of addition is preferably arranged so that the dispersion medium contains (i), as a low vapor pressure component, the compound represented by the general formula (6) in an amount of not less than 10 % by mass but not more than 98.9% by mass with respect to the total amount of the composition, (ii), as a component of resistivity adjustment, a solution of sodium acetate at 0.4% by mass in a amount of not less than 0.5% by mass but not more than 5% by mass with respect to the total amount of the composition, (iii), as a component of surface tension adjustment, isoparaffin in an amount of not less than 0% by mass but not more than 9.99% by mass with respect to the total amount of the composition.

The control method of the present certificate of addition is preferably arranged so that the dispersion medium contains (i), as a low vapor pressure component, in an amount of not less than 75% by mass but not more than 99.4 Mass% with respect to the total amount of the composition, at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether and a dibasic ester, (ii), As a resistivity adjustment component, (a) sodium acetate in an amount of not less than 0.0005% by mass but not more than 0.1% by mass with respect to the total amount of the composition and

(b) water in an amount of not less than 0.49% by mass but not more than 4,995% by mass with respect to the total amount of the composition, and (iii), as a component of surface tension adjustment, isoparaffin in an amount of not less than 0% by mass but not more than 9.99% by mass with respect to the total amount of the composition.

The control method of the present certificate of addition is preferably arranged so that the dispersion medium contains, as a low vapor pressure component, (i) n-propyl ether of dipropylene glycol in an amount of not less than 10% by mass but not more than 89.4% by mass with respect to the total amount of the composition, and (ii) the dibasic ester in an amount of not less than 10% by mass but not more than 89.4% by mass with respect to The total amount of the composition.

The control method of the present certificate of addition is preferably arranged so that the dispersion medium contains, as a low vapor pressure component, the dibasic ester in an amount of not less than 10% by mass but not more than 45% in mass with respect to the total amount of the composition.

The control method of the present certificate of addition is preferably arranged such that electrostatic spraying includes the steps of: supplying the composition to a spray electrode having a tube shape; applying a voltage through the spray electrode and a discharge electrode corresponding to the spray electrode, so that the composition has a liquid particle form; and spray the composition from the spray electrode.

Note that, in the present specification, the expression "liquid particles"; means particles of a liquid, and the shape and size of these liquid particles is not particularly limited. The size of the liquid particles may be, but is not limited to, a spherical shape. The size of the liquid particles is also not particularly limited. For example, in a case where the liquid particles have a spherical shape, such spherical liquid particles can have a diameter in a range of 1 nm to 1000 µm. Note, however, that the size of spherical liquid particles is not limited to this.

The composition of the present certificate of addition also preferably includes a dispersion medium containing (i) at least one compound selected from the group consisting of a polyol having at least one hydroxyl group per molecule, a polyether having at least one hydroxyl group per molecule, acetic ester of 1 ~ methoxy ~ 2 ~ propanol, 1 ~ butoxy ~ 2 ~ propanol, 1 ~ propoxy-2 ~ acetoxypropane and oxybis (methoxy) propane, and (ii) an adjustment component of physical properties, being an amount of at least one of the ester compounds in the composition of not less than 0.1% by mass but not more than 10% by mass with respect to a total amount of the composition, being an amount of

dispersion medium in the composition of not less than 90% by mass but not more than 99.9% by mass with respect to the total amount of the composition, being an amount of the physical properties adjustment component in the composition of no less than 0.5% by mass but not more than 25% by mass with respect to a total amount of the

5 composition

The composition of the present certificate of addition also preferably includes: a dispersion means for dispersing the ester compound, the dispersion means (i) containing a low vapor pressure component containing at least one compound selected from the group consisting of ( a) a polyether represented by the following general formula (6) and (b) a basic di ester, and (ii) a resistivity adjustment component, the composition having a vapor pressure of less than 14 Pa at a temperature from

20 'C:

... (6)

(in which: R1 is a C1 to C4 alkyl group; and n is 2 or 3 (in a case where n is 2, R1 is not a methyl group) The composition of the present certificate of addition is preferably arranged in a manner that the low vapor pressure component also contains dipropylene glycol.The composition of the present certificate of addition is preferably arranged so that the dispersion medium also contains a surface tension adjustment component 20.

The composition of the present certificate of addition is preferably arranged so that the low vapor pressure component contains at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether and A dibasic ester.

The composition of the present certificate of addition is preferably arranged so that the low vapor pressure component contains dipropylene glycol n-propyl ether.

The composition of the present certificate of addition is preferably arranged so that the dispersion medium contains (i) the low vapor pressure component in an amount of not less than 75% by mass but not more than 98.9% by mass with respect to a total amount of the composition, (ii) the resistivity adjustment component in an amount of not less than 0.5% by mass but not more than 5% by mass with respect to the

total amount of the composition and (jii) the surface tension adjustment component in an amount of not less than 0.5% by mass but not more than 10% by mass with respect to the total amount of the composition.

The composition of the present certificate of addition is preferably arranged so that the dispersion medium contains (i), as a low vapor pressure component, the compound represented by the general formula (6) in an amount of not less than 10% in mass but not more than 98.9% by mass with respect to the total amount of the composition, (ii), as a resistivity adjustment component, a 0.4% solution of sodium acetate by mass in an amount of not less than 0.5% by mass but not more than 5% by mass with respect to the total amount of the composition and (iii), as a component of surface tension adjustment, isoparaffin in an amount of not less than 0% by mass but not more than 9.99% by mass with respect to the total amount of the composition.

The composition of the present certificate of addition is preferably arranged so that the dispersion medium contains (i), as a low vapor pressure component, in an amount of not less than 75% by mass but not more than 99.4% in mass with respect to the total amount of the composition, at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol ether and a dibasic ester, (ii), as the adjustment component of the resistivity, (a) sodium acetate in an amount of not less than 0.0005% by mass but not more than 0.1% by mass with respect to the total amount of the composition and (b) water in an amount of not less than 0.49% by mass but not more than 4,995% by mass with respect to the total amount of the composition, and (iii), as a component of surface tension adjustment, isoparaffin in an amount of not less than 0% by mass but not more than 9.99% by mass with beef pecto to the total amount of the composition.

The composition of the present certificate of addition is preferably arranged so that the dispersion medium contains, as a low vapor pressure component, (i) n-propyl ether of dipropylene glycol in an amount of not less than 10% by mass but not more 89.4% by mass with respect to the total amount of the composition and (ii) the dibasic ester in an amount of not less than 10% by mass but not more than 89.4% by mass with respect to the total amount of the composition.

The composition of the present certificate of addition is preferably arranged so that the dispersion medium contains, as a low vapor pressure component, the dibasic ester in an amount of not less than 10% by mass but not more than 45% by mass with regarding the total amount of the composition.

An electrostatic spray device of the present certificate of addition includes: a storage tank for storing a composition of the present invention; a spray electrode to which the composition is supplied from the

storage tank; and a discharge electrode provided in the vicinity of the

5 spray electrode, the composition being electrostatically sprayed from the spray electrode by applying a voltage through the spray electrode and the discharge electrode.

Preferable embodiments of the present certificate of addition were explained above with reference to the drawings. Note, however, that the present

The certificate of addition is not limited to the description of the above embodiments, but may be altered by an expert within the scope of the claims. The shapes of the constituents or combinations of the constituents, described in the previous embodiments, are merely examples, and can be modified in different ways according to design conditions or the like, within the technical scope of the present invention.

15 [Examples)

The present invention is explained below more specifically with examples. Note, however, that the present invention is not limited to the following examples.

20 In the following examples, the rates of flying insect abatement (CuJex pipiens paJlens) were found in a test chamber (0.7 m x 0.7 m x 0.7 m), and compared with each other. In the following examples, 20 Cufex pipiens palJens adult female were released in the test chamber, which had undergone a control process according to each of the following methods, and the number of CuJex pipiens paJlens was counted

25 that fell 10 minutes after release. The rate of despondency was thus found. (Example 1) A composition of example 1 was prepared as shown in the following table

9.

[Table 9)

Content (mass percentage)

Ester compound represented by formula (1)

1.2

DPnP (N-propyl dipropylene glycol ether)

84.5

Isoparaffin (Isopar L (registered trademark))

8

PEG300 (polyethylene glycol 300)

4.8

Water

1,494

Sodium acetate

0.006

Total

100

Formula 1)

In the present example, the ester compound represented by the formula (1) was (S) -2-methyl-4-oxo-3- (2-propynyl) -2-cyclopentenyl carboxylate = (1 R) -cisltrans- 2,2-dimethyl-3- (2-methyl-1-propenyl) cyclopropane.

The composition shown in Table 9 above was supplied to a deposit of

10 storage of an electrostatic spray device (Cleanaer model, manufactured by Atrium Innovation Ud.), Which had been disclosed in European Patent Application Publication No. 1399265. The electrostatic spray device was placed in the test chamber, And it went on. The composition was sprayed continuously from the electrostatic spray device for 3 minutes

15 initials immediately after the electrostatic spray device is turned on. Then, the spraying was stopped for 1 minute. After that, the electrostatic spraying device started working again so that the spraying was carried out for 25 seconds every 2 minutes. As a result, a 25 mg lot of the composition was sprayed into the chamber. Then, the operation of the electrostatic spray device was stopped. Thus the interior of the test chamber was subjected

5 to a control process.

After that, 20 Culex pipiens pallens female adults were released in the test chamber. The number of Culex pipiens palJens that fell 30 minutes after being released into the test chamber was counted. The rate of despondency was thus found.

10 (Example 2) The abatement rate was found in the same manner as in Example 1, except that a composition shown in the following table 10 was used instead of the composition shown in Table 9.

15 [Table 10)

Content (mass percentage)

Ester compound represented by formula (1)

6

DPnP (N-propyl dipropylene glycol ether)

84.5

Isoparaffin (Isopar L (registered trademark))

8

Water

1,494

Sodium acetate

0.006

Total

100

The following table 11 shows the results of examples 1 and 2.

[Table 11)

Sample

Insect abatement rate (%, 30 minutes after release)

Example 1

100

Example 2

100

Based on the measurement results, it was shown that it was possible to control

5 harmful arthropods with high efficiency with either (i) the composition and method of example 1 or (ii) the composition and method of example 2. Accordingly, the usefulness of this certificate of addition was confirmed.

Industrial applicability

Each of a control method, a composition and an electrostatic spray device of the present certificate of addition makes it possible to control a damaging arthropod effectively, without carrying out any heating process or any pressure process. Therefore, the present invention can be applied to a procedure for controlling harmful arthropods indoors (such as a house and a

15 factory) or outdoors (such as a farm and a park).

List of reference signs

one.

Spray electrode

2.

Depression for spray electrode

20 3. Discharge electrode

Four.

Depression for discharge electrode

5.

Spray Discharge Superstore

6.

Sheathed metal conduit

7.

Sheathed metal conduit

25 8. Storage tank

9.

Small hole air inlet

10.

Drive circuit

Claims (22)

1. Control method of a harmful arthropod, the method comprising the stage of: electrostatically spraying, the harmful arthropod or an area in which the harmful arthropod inhabits, a composition in an amount that is effective in controlling the harmful arthropod, containing the composition an ester compound represented by the following formula (1): Formula (1) an amount of the adjustment component of the physical properties in the composition is not less than 0.5% by mass but not more than 25% in mass with respect to the total amount of the composition.

10

2.

Method according to claim 1, wherein:

The composition has (i) an electrical resistance of not less than 1) (103 Om but not

more than 1) (106 nm at a temperature of 20 ° C, (ii) a viscosity of not less than 1

mPa · s but

no more than 10 mPa · s at a temperature of 20 ° C, and (jii) a voltage

fifteen

surface area of not less than 20 mN / m but not more than 40 mN / m at a temperature of

20 ° C

3.

Method according to claim 1, wherein:

The composition also contains a dispersion medium containing (i) at least

a compound selected from the group consisting of a polyol that has at least

twenty

one hydroxyl group per molecule, a polyether having at least one hydroxyl group

per molecule, 1-methoxy-2-propanol, 1-butoxy-2-propanol, 1-propoxy-2 acetic ester

acetoxypropane

Y oxybis (methoxy) propane, and (ii) a component from adjustment from the

physical properties;

an amount of at least one of the ester compounds in the composition is of

25

not less than 0.1% in mass but no more than 10% in dough with about a

total amount of the composition;

an amount of the dispersion medium in the composition is not less than 90% in

mass

but no more than 99.9% in  mass with respect to total quantity of the

composition; Y

4. Method according to claim 1, wherein: The composition also contains a dispersion means for dispersing the at least one ester compound, and has a vapor pressure of less than 14 Pa at a temperature of 20 ° C; the dispersion medium (i) containing a low vapor pressure component containing at least one compound selected from the group consisting of (1) a 10 polyether represented by the following general formula (6) and (11) a dibasic ester, and (ii) a resistivity adjustment component: ... (6) (in which: Rl is a C1 to C4 alkyl group; and n is 2 OR 3 (in a case where n is 2, Rl it is not a methyl group »)

A method according to claim 4, wherein: the low vapor pressure component also contains dipropylene glycol.

6. A method according to claim 4, wherein: the dispersion medium further contains a surface tension adjustment component.

Method according to claim 4, wherein: the low vapor pressure component contains at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether and A dibasic ester.

8. The method of claim 7, wherein: the low vapor pressure component contains dipropylene glycol n-propyl ether. 9. The method of claim 6, wherein: the dispersion medium contains (i) the low vapor pressure component in an amount of not less than 75% by mass but not more than 98.9% by mass with respect to at a total amount of the composition, (ii) the adjustment component of the 30 resistivity in an amount of not less than 0.5% by mass but not more than 5% by mass with respect to the total amount of the composition, and (iii) the component of

adjustment of surface tension in an amount of not less than 0.5% by mass but

no more than 10% by mass with respect to the total amount of the composition.

10.

Method according to claim 6, wherein:

The dispersion medium contains (i), as a low vapor pressure component, the

5

compound represented by the general formula (6) in an amount of not less than

10% by mass but not more than 98.9% by mass with respect to the total amount of the

composition, (ii), as a resistivity adjustment component, a solution of

0.4% sodium acetate by mass in an amount of not less than 0.5% by mass

but not more than 5% by mass with respect to the total amount of the composition, (jii),

10

as a component of surface tension adjustment, isoparaffin in an amount of

not less than 0% by mass but not more than 9.99% by mass with respect to the

total amount of the composition.

eleven.

Method according to claim 6, wherein:

the dispersion medium contains (i), as a low vapor pressure component, in

fifteen

an amount of not less than 75% by mass but not more than 99.4% by mass with

with respect to the total amount of the composition, at least one compound selected

from the group consisting of tripropylene glycol monomethyl ether, n-propyl ether of

dipropylene glycol, n-butyl ether of dipropylene glycol and a dibasic ester, (ii), as

resistivity adjustment component, (a) sodium acetate in an amount of non

twenty

less than 0.0005% by mass but not more than 0.1% by mass with respect to the

total amount of the composition, and (b) water in an amount of not less than 0.49%

by mass but not more than 4,995% by mass with respect to the total amount of the

composition, and (iii), as a component of surface tension adjustment, isoparaffin

in an amount of not less than 0% by mass but not more than 9.99% by mass with

25

regarding the total amount of the composition.

12.

Method according to claim 11, wherein:

The dispersion medium contains, as a low vapor pressure component, (i) n

dipropylene glycol propyl ether in an amount of not less than 10% by mass but not

more than 89.4% by mass with respect to the total amount of the composition, and (ii) the

30

dibasic ester in an amount of not less than 10% by mass but not more than

89.4% by mass with respect to the total amount of the composition.

13.

Method according to claim 12, wherein:

The dispersion medium contains, as a low vapor pressure component, the

dibasic ester in an amount of not less than 10% by mass but not more than 45%

in mass with respect to the total amount of the composition.

14.

Method according to claim 1, wherein:

5

Electrostatic spraying includes the stages of:

supplying the composition in a spray electrode having a form of

tube;

apply a voltage through the spray electrode and a discharge electrode

corresponding to the spray electrode, so that the composition has

10

a form of liquid particles; Y

spray the composition from the spray electrode.

fifteen.

Composition comprising:

an ester compound represented by the following formula (1),

the composition (i) having an electrical resistance of not less than 1 x 103 Qm but

fifteen

no more than 1 x 106 Om at a temperature of 20 ° C, (ii) a viscosity of not less

1 mPa · s but not more than 10 mPa · s at a temperature of 20 ° C, and (¡ji) a voltage

surface area of not less than 20 mNlm but not more than 40 mNlm at a temperature of

20 ° C:

Formula 1)

twenty

16.

Composition according to claim 15, further comprising:

a dispersion medium containing (i) at least one compound selected from the

group consisting of a polyol that has at least one hydroxyl group per molecule,

25

a polyether having at least one hydroxyl group per molecule, acetic ester of 1

methoxy-2-propanol,

1-butoxy-2-propanol, 1-propoxy-2-acetoxypropane Y

oxybis (methoxy) propane and (ii) an adjustment component of physical properties,

an amount of at least one of the ester compounds being in the composition

of not less than 0.1% by mass but not more than 10% by mass with respect to a

total amount of the composition,

being a quantity of the dispersion medium in the composition of not less than

5

90% by mass but not more than 99.9% by mass with respect to the total amount of the

composition,

being an amount of the adjustment component of the physical properties in the

composition of not less than 0.5% by mass but not more than 25% by mass with

with respect to a total amount of the composition.

10

17. Composition according to claim 15, further comprising:

a dispersion means to disperse the ester compound,

containing the dispersion medium (i) a low vapor pressure component that

contains at least one compound selected from the group consisting of (a) a

polyether represented by the following general formula (6) and (b) a dibasic ester, and

fifteen

(ii) a resistivity adjustment component,

the composition having a vapor pressure of less than 14 Pa at a temperature

20 'C:

... (6)

(where: R 'is a C, a C4 alkyl group; and n is 2 OR 3 (in a case where n is 2,

twenty

R 'is not a methyl group »

18.

Composition according to claim 17, wherein:

The low vapor pressure component also contains dipropylene glycol.

19.

Composition according to claim 17, wherein:

the dispersion medium also contains a tension adjustment component

25

superficial.

twenty.

Composition according to claim 17, wherein:

the low vapor pressure component contains at least one compound

selected from the group consisting of tripropylene glycol monomethyl ether, n-propyl

dipropylene glycol ether, n-butyl dipropylene glycol ether and a dibasic ester.

30

twenty-one . Composition according to claim 20, wherein:

The low vapor pressure component contains dipropylene glycol n-propyl ether.

22

Composition according to claim 19, wherein:

the dispersion medium contains (i) the low vapor pressure component in a

amount of not less than 75% by mass but not more than 98.9% by mass with

with respect to a total amount of the composition, (ii) the adjustment component of the

resistivity in an amount of not less than 0.5% by mass but not more than 5% in

5

mass with respect to the total amount of the composition, and (jii) the component of

adjustment of surface tension in an amount of not less than 0.5% by mass but

no more than 10% by mass with respect to the total amount of the composition.

2. 3.

Composition according to claim 22, wherein:

The dispersion medium contains (i), as a low vapor pressure component, the

10

compound represented by the general formula (6) in an amount of not less than

10% by mass but not more than 98.9% by mass with respect to the total amount of the

composition, (ii), as a resistivity adjustment component, a solution of

0.4% sodium acetate by mass in an amount of not less than 0.5% by mass

but not more than 5% by mass with respect to the total amount of the composition, and

fifteen

(iii), as a component of surface tension adjustment, isoparaffin in a

amount of not less than 0% by mass but not more than 9.99% by mass with

regarding the total amount of the composition.

24

Composition according to claim 22, wherein

the dispersion medium contains (i), as a low vapor pressure component, in

twenty

an amount of not less than 75% by mass but not more than 99.4% by mass with

with respect to the total amount of the composition, at least one compound selected

from the group consisting of tripropylene glycol monomethyl ether, n-propyl ether of

dipropylene glycol, n-butyl ether of dipropylene glycol and a basic di ester, (ii), as

resistivity adjustment component, (a) sodium acetate in an amount of non

25

less than 0.0005% by mass but not more than 0.1% by mass with respect to the

total amount of the composition, and (b) water in an amount of not less than 0.49%

by mass but not more than 4,995% by mass with respect to the total amount of the

composition, and (iii), as a component of surface tension adjustment, isoparaffin

in an amount of not less than 0% by mass but not more than 9.99% by mass with

30

regarding the total amount of the composition.

25.

Composition according to claim 24, wherein:

The dispersion medium contains, as a low vapor pressure component, (i) n

dipropylene glycol propyl ether in an amount of not less than 10% by mass but not

more than 89.4% by mass with respect to the total amount of the composition, and (ii) the

dibasic ester in an amount of not less than 10% by mass but not more than 89.4% by mass with respect to the total amount of the composition. 26. Composition according to claim 25, wherein: the dispersion medium contains, as a low vapor pressure component, the 5 dibasic ester in an amount of not less than 10% by mass but not more than 45% by mass with respect to the total amount of the composition. 27. Electrostatic spray device comprising: a storage tank for storing a composition mentioned in claim 15; 10 a spray electrode to which the composition is supplied from the storage tank; and a discharge electrode provided in the vicinity of the spray electrode, the composition being electrostatically sprayed from the electrode of 15 spraying by applying a voltage through the spraying electrode and the discharge electrode.