JP2008194034A - Chemical-volatilizing body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical-volatilizing body provided by holding a carrier containing a chemical evaporating at normal temperature in a chemical container easy in assembling, comprising few elements, excellent in evaporating performance and hanging strength, requiring no large carrier for containing the chemical evaporating at normal temperature, capable of compactly housed, and usable at normal temperature not only by being hanged but also as a table type. <P>SOLUTION: The chemical-volatilizing body comprises a chemical container 1 having openings 3 at least on the front surface, the rear surface, and two side surfaces, wherein the area of the openings of the front surface and the rear surface (A1 and A2) are each set to be 10-50% of the area total of the font surface and the rear surface, and the area of the openings of the two side surfaces (B1 and B2) are each set to be 5-30% of the total area of the side surfaces, and the ratio [(B1 and B2)/(A1 and A2)] of the area of the front surface and rear surface (A1 and A2) to the area of the two side surfaces (B1 and B2) is set to be 0.005-0.3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a chemical volatilizer that effectively volatilizes a volatile chemical in order to control and repel flying insect pests such as mosquitoes and flyfish.

Conventionally, various volatilization methods for volatilizing volatile chemicals are known. Examples of these include (1) a method in which an active ingredient is dissolved in a solvent and the like, and a liquid absorption wick is absorbed into the liquid, and the wick is heated to evaporate the active ingredient to obtain an effect. Rotating the impregnated carrier with a motor with a motor and volatilizing the drug by the centrifugal force to obtain the effect. (3) Effectively volatilizing the active ingredient naturally from the filter paper-like paper impregnated with the drug And the like.

However, in the methods (1) and (2), power and a battery are used as means for volatilizing the drug, so that there is a problem that there are restrictions on the place of use and a cost is required because the battery is used. In addition, in the method (3) where the active ingredient is volatilized from the filter paper-like paper, a large drug impregnated body is necessary to obtain sufficient efficacy. is there. In addition, when used in a state where it is touched, or when a container is used, the structure is complicated, resulting in insufficient strength, and a plurality of container materials, resulting in high costs. Patent Document 1 uses a substrate impregnated with an active anthelmintic component such as transfluthrin, prareslin, tefluthrin, or esbioslin as an anthelmintic product for combating flying insects in a form that passively diffuses the anthelmintic component. Although the invention of the manufactured product is disclosed, sufficient examination about the specific shape and volatilization efficiency is not necessarily added.
Further, Patent Document 2 discloses a volatile component holding carrier and a volatile component holding material as a method for efficiently releasing the volatile component and fully exerting the efficacy of the volatile component from the beginning. There is no disclosure regarding efficiency, only some shapes are shown.
Japanese National Patent Publication No. 11-504627 JP 2006-16474 A

The present invention is a drug volatilized body containing a carrier containing a room temperature volatile drug inside a drug container, the drug container is easy to assemble, has few members, and has excellent volatilization performance and suspension strength. In addition, the carrier containing the room temperature volatile drug is not large and can be stored compactly, and it was made for the purpose of providing a drug volatile material that can be used not only for hanging at room temperature but also as a stand-alone type. Is.

The chemical volatilization body by this invention is disclosed as follows.
(1) A drug volatilized body in which a reticulated cylindrical carrier containing a room temperature volatile drug is housed in a substantially rectangular drug container, the drug container having a substantially rectangular parallelepiped shape includes at least a front surface, a back surface, and two There are openings on the side, and the area of the front and back openings (A1 and A2) is 10 to 50% of the total area of the front and back, respectively, and the area of the openings on the two sides (B1 and B2) Is 5 to 30% of the entire area of the side surface, and the ratio of the area of the opening on the front and the back (A1 and A2) to the area of the opening on the two sides (B1 and B2) [(B1 and B2 ) / (A1 and A2)] is set in the range of 0.005 to 0.3, and in addition, a hook portion is provided on the upper side.

(2) The drug volatilizer according to (1), wherein the room temperature volatile drug is one or two pyrethroids selected from transfluthrin, metfurthrin, and profluthrin.
(3) The substantially rectangular parallelepiped drug container is formed by bending a flat sheet-like plastic member so that the bent surfaces overlap on one side and the upper and lower surfaces, and a tongue piece provided at the end of one of the bent surfaces Is formed so as to be openable and closable by being inserted into a notch portion along the fold line of the other fold surface, and a hook portion is formed so as to be able to be turned up by making a cut in the tongue piece portion of the fold surface on the upper surface. The chemical volatilization product according to (1) or (2), which is extended.
(4) The drug according to (1) or (2), wherein the substantially rectangular parallelepiped drug container is an integral plastic molded product, and a hook portion is provided in the vicinity of the upper surface so as to be able to rise. Volatilizer.
(5) The drug volatilization body according to (4), wherein a tip portion of the hook portion raised in use is configured to be locked to a part of the substantially rectangular parallelepiped drug container.

The present invention is a drug volatilized body containing a carrier containing a room temperature volatile drug inside a drug container, the drug container is easy to assemble, has few members, and has excellent volatilization performance and suspension strength. In addition, a carrier containing a room temperature volatile chemical is not large and can be stored compactly, and usually provides a chemical volatile body that can be used not only for hanging at room temperature, but also as a stationary type. The practicality is extremely high.

In the present invention, a carrier containing a room temperature volatile drug is housed and used inside a compact drug container that is easy to assemble and has few members.

The carrier used in the present invention is one in which a volatile chemical is held by impregnation or kneading, and a reticulated cylindrical shape is adopted as the shape of the carrier. Since the carrier in the shape of a net-like cylinder is cylindrical, the shape becomes too large, it is difficult to use in a compact manner, and the volatilization increases too much, so that a predetermined period cannot be given. There were drawbacks. However, in the present invention, the volatilization performance of the carrier is made appropriate by housing in a specific drug container, and the sustained stability of volatilization can be achieved.
The material of this reticulated cylindrical carrier can be any of ordinary paper, fiber, resin, etc., and is not particularly limited, but the resin material is highly flexible and can be impregnated with a large amount of drug, This is preferable from the viewpoint that the controlled release of the drug can be controlled. In particular, a resin using polyethylene is most suitable for use because it is rich in flexibility and suitable for holding active ingredients. Further, although the mesh spacing and mesh diameter of the mesh-shaped cylindrical carrier are not particularly limited, the mesh spacing is more preferably 0.1 mm to 10 mm, more preferably 0.5 mm to Most preferred is 5 mm. The mesh diameter is preferably 0.05 mm to 3 mm, and most preferably 0.1 mm to 2 mm.

The substantially rectangular parallelepiped drug container has an opening for volatilizing the volatile drug contained in the carrier. Describing this opening, the area of the opening of the substantially rectangular parallelepiped front and back is set to 10 to 50% with respect to the entire front and the entire back, respectively. It is recognized that the area of the opening has a great influence on the entire volatilization performance. As a result of the test, the opening area of each side surface is 5 to 30%, preferably 10 to 25 as the opening ratio with respect to the entire side surface. % Is mandatory. Furthermore, the numerical value of the ratio [(B1 + B2) / (A1 + A2)] of the area (B1 and B2) of the opening on the two side surfaces to the area (A1 and A2) of the opening on the front and back is 0.005 to 0.3. By adopting the area ratio together with the opening ratio, a drug container with sufficient air permeability is provided even if it is compact, and the volatile drug volatilizes the necessary and sufficient volatilization amount from the carrier housed inside. It can be.
Moreover, this opening part can be installed also in the remaining surfaces other than the said front and back, and two side surfaces, ie, an upper surface and a lower surface, The aperture ratio is 5 to 30% similarly to two side surfaces. In this case, it is possible to ensure a sufficient opening area at the opening on the side surface even when used in a standing shape.

In addition, A1 and A2 in this invention represent the opening part of the front and back surface of a substantially rectangular parallelepiped container, respectively. The front here is one of the two surfaces with the largest area among the six surfaces shown in a substantially rectangular parallelepiped shape, and the back is the remaining of the two surfaces with the largest area. This shows the surface. Furthermore, B1 and B2 referred to in the present invention indicate the respective opening portions of the remaining two side surfaces excluding the front surface and the back surface when used in a suspended state.

As the room temperature volatile drug used in the present invention, various drugs can be used as long as they are pyrethroids, but transfluthrin (trade name Biothrin), metfurthrin (trade name Eminence) or profluthrin (trade name Fair) (Retail) is more preferable from the viewpoint of effect. These three kinds of drugs can be used alone, but two or more kinds may be used in combination. Furthermore, among these, it is desirable to use metfurthrin as at least one kind of drug to be used from the viewpoint of its volatility and efficacy. These pyrethroids may be various stereo-geometric isomers, and any of these isomers can be used.

The drug amount of the room temperature volatile drug held on the carrier varies depending on the temperature change of the conditions used and the use conditions such as wind at the place of use, and the optimum use quantity also changes depending on the type of drug used Therefore, although not particularly limited, if a drug volatilizer of this shape is used, the active ingredient content is usually about 30 mg to 500 mg, and is exemplified as a usage amount of about 10 to 60 days. .

In setting the active ingredient content, although depending on the type of active ingredient to be used, for example, when metfurthrin is used, the minimum active ingredient volatilization amount required for volatilization is 0.03 mg / hr or more, trans In the case of frutrine, 0.06 mg / Hr or more, in the case of profluthrin, 0.03 mg / Hr or more, the active ingredient content for 30 days is 30 mg to 250 mg for metfurthrin, 60 mg to 500 mg for transfluthrin, 30 mg to 30 mg for proflothrin. What is necessary is just to set in the range of 300 mg.

As the substantially rectangular parallelepiped medicine container used in the present invention, a bent flat sheet plastic member is shown. In this case, it assembles so that a bending surface may overlap on one side and upper and lower surfaces. Various plastic materials such as polyethylene terephthalate, polyethylene, polypropylene, polybutylene terephthalate, nylon, and polyamide can be used as the planar sheet-like plastic member here, but in consideration of strength and properties, polyethylene terephthalate and polybutylene are used. Terephthalate is preferred. Various thicknesses of the plastic member of the present invention can be used, but those having a thickness of 0.05 mm to 2 mm are most preferable in view of the shape of the carrier and its volatilization performance, economy, etc. Is done. Furthermore, a hook portion is extended so as to be able to be turned up by making a cut in a tongue piece portion provided at an end portion of the upper bent surface. A storage window for folding the hook portion may be provided above the back surface. As a result, various usage methods can be used and applied to various usage methods.
In addition, when the tip portion of the hook portion shown here is locked to the upper surface portion of the substantially rectangular parallelepiped container, for example, when used outdoors, the substantially rectangular parallelepiped container may be blown away by wind or the like. In the case of hanging with a, there is no problem of accidentally dropping it at the time of use, and a certain effect can be expected at a place where it is desired to be used, which is more preferable.

Further, as the substantially rectangular parallelepiped drug container used in the present invention, an integral plastic molded product can be used. As the material of the member used in this case, various plastic materials such as polyethylene terephthalate, polyethylene, polypropylene, polybutylene terephthalate, nylon and polyamide can be used as in the case of using the sheet member. In view of the above, polyethylene terephthalate and polybutylene terephthalate are preferable. Various thicknesses of the plastic member of the present invention can be used, but those having a thickness of 0.05 mm to 2 mm are most preferable in view of the shape of the carrier and its volatilization performance, economy, etc. Is done.
The integral plastic molded product here is not limited in form as long as it is molded by normal injection molding or vacuum molding, etc., but the upper and lower surfaces, front and back molded products are integrated using a hinge, If it unites by fitting, a manufacturing process can be simplified and it is more suitable.
Further, in this case, it is possible to use the medicine container more effectively if a hook portion is provided on the upper surface portion of the medicine container so that it can be raised.
When the tip portion of the hook portion shown here is configured to be able to be locked to a part of the substantially rectangular parallelepiped container, for example, an opening or a recess provided on the upper surface at the time of use, when used outdoors, it is a substantially rectangular parallelepiped. When the container is blown away by the wind or suspended indoors, there is no problem of accidental dropping during use, and a reliable effect can be expected at a place where it is desired to be used. In addition, which part of the substantially rectangular parallelepiped container is to be locked is a matter to be appropriately selected at the time of manufacture, but if it is locked on the same surface as the surface on which the hook portion is provided, movement during use It is more preferable because it can be restricted.

In addition, other synergists, repellents, and the like can be used at the same time for the drug used in the present invention, and the following compounds are exemplified.
As a synergist, octachlorodipropyl ether (trade name S-421), isobornyl thiocyanate acetate (trade name IBTA), N-octylbicycloheptenecarboximide (trade name Sinepilin 222), (2-ethylhexyl) ) -1-isopropyl-4-methylbicyclo (2,2,2) oct-5-ene-2,3-dicarboximide (trade name: Sinepirine 500), and repellents include N, N- Diethyl-m-toluamide (trade name Diet), dimethyl phthalate, dibutyl phthalate, 2-ethyl-1,3-hexanediol, 1,4,4a, 5a, 6,9,9a, 9b-octahydrodibenzofuran-4a -Although carbaldehyde etc. are illustrated, it is not limited to these.

Moreover, although all the room temperature volatile chemical | medical agents used by this invention have sufficient stability, in order to improve stability further, it is also possible to add stabilizers, such as antioxidant. Regarding these antioxidants, 2,2′-methylenebis (4-ethyl-6-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 4,4′-methylenebis ( 2-methyl-6-t-butylphenol), BHT, BHA, 3,5-di-t-butyl-4-hydroxyanisole, mercaptobenzimidazole and the like are exemplified, but not limited thereto.

Furthermore, by using ultraviolet absorbers such as paraaminobenzoic acids, cinnamic acids, salicylic acids, benzophenones and benzotriazoles as ultraviolet absorption inhibitors, the light resistance during storage and use can be further improved.

The chemical volatilization body of the present invention can be used in living rooms, Japanese rooms, entrances, mosquitoes such as mosquitoes, chikaeka, and tiger mosquitoes in warehouses, restaurants, camping, etc. It has a practical insecticidal and repellent effect. In addition, when used in places such as a window or a veranda that separates the room from the outside, there is an advantage that these pests can be effectively prevented from entering the room from the outside. In this case, the chemical volatilization body can be used in the form of being placed in the room if the hook part housed in the upper part of the back surface is hooked on the curtain rail etc. or there is no place to hook it. is there.

EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to the following examples.

FIG. 1 is a reference front view showing a state in which a transparent drug container 1 is housed in a reticulated tubular carrier 2 (length 80 mm × cylinder diameter 60 mm) containing 100 mg of metfurthrin. The drug container 1 is a substantially rectangular parallelepiped drug container (length 150 mm × width 90 mm × thickness 20 mm) made of polyester, and has an opening 3 of the drug container, the side surface portion is a tongue piece portion 4, and the lower surface portion is a tongue piece. It is locked by the part 5. The hook portion 6 is installed on the back surface portion. The opening ratio of the front surface and the back surface of the drug container was 35%, and the opening ratio of the side surface was 16%.

Comparative example

A paper carrier (length 80 mm × cylinder diameter 60 mm) containing 100 mg of metfurthrin was placed in a substantially rectangular solid drug container (length 150 mm × width 90 mm × thickness 20 mm) to obtain a reagent supply volatilization body. The drug container had an opening ratio of 10% on the front surface and the back surface and an opening ratio of 5% on the side surface.

Efficacy test The reagent reagent volatilized sample produced in Example 1 was placed in a room of 8 tatami mats (33 m ³ ), and 100 female stingrays were released while circulating the wind at 25 ° C., and the number of knockdowns over time. Was observed until 2 hours later, and KT50 was determined by the probit method. Evaluation was performed as follows according to the value of KT50.
Evaluation by KT50 value ○: 40 minutes or less, Δ: 40 minutes to 80 minutes ×: 80 minutes or more

As a result of the test, the drug volatilization body of the present invention reliably retained the shape of the drug container in which the volatilizing drug was placed, and was excellent in practicality. Also, in terms of efficacy, stable efficacy was maintained from the beginning.
On the other hand, as shown in Comparative Example 1 and Comparative Example 2, in the case of using the sheet-like carrier, the efficacy was slightly low from the initial stage, and the efficacy was clearly lowered toward the end stage. Further, even in the case of Comparative Example 3 using a net-like cylindrical carrier, if the predetermined opening area on the side surface is not secured, the effect is similarly reduced. Further, in Comparative Example 4 using a plate-like plastic carrier, it was difficult to maintain the shape, and the opening area of the front and back surfaces was insufficient, and the effectiveness was clearly low. Further, when the opening area of the front and back surfaces and the two side surfaces was set to a predetermined value or more as in Comparative Example 5, the initial efficacy was high, but the sustainability of the efficacy was not obtained. Therefore, it has been confirmed that high efficacy can be sustained for a long time only when a net-like cylinder shape is adopted as the shape of the carrier and predetermined opening areas are set on the front surface, the back surface, and the two side surfaces.

Polyester integrated molded product with an opening on the top surface in addition to the front, back, and two side surfaces, and a substantially rectangular parallelepiped drug container with a hook that can be raised via a hinge near the top (length) 150 mm × width 90 mm × thickness 20 mm). A reticulated cylindrical carrier (length 80 mm × cylinder diameter 60 mm) containing 100 mg of metfurthrin was put in this, and the chemical volatilization body of this invention was obtained. The opening ratios of the openings provided in the drug container were 30% on the front and back, 15% on the side, and 5% on the top, respectively.
The hook part of this product was raised and hung on a laundry drying basket on a veranda, and then the tip part of the hook part was engaged with the upper opening of the drug container. Over about 30 days, this product prevented various flying pests from entering the room, and the drug container was not blown away by the wind, so it was convenient and extremely practical.

The present invention relates to a chemical volatilizer that effectively volatilizes a volatile chemical in order to control and repel flying insect pests such as mosquitoes and flyfish, and can be put to practical use in various fields.

It is an example of the front view of the chemical volatilization body using the transparent chemical | medical agent container of this invention.

Explanation of symbols

1. 1. Drug container 2. Reticulated cylindrical carrier 3. Opening of drug container 4. Tongue piece Tongue piece 6. Hook part

Claims (5)

A drug volatilized body in which a reticulated cylindrical carrier containing a room temperature volatile drug is housed in a substantially rectangular drug container,
The substantially rectangular parallelepiped medicine container has openings on at least the front and back sides and two side surfaces, and the front and back opening areas (A1 and A2) are 10 to 50 of the entire front and back area, respectively. %, And the area of the opening on the two side surfaces (B1 and B2) is 5 to 30% of the entire area of the side surface,
Further, the ratio [(B1 and B2) / (A1 and A2)] of the area (A1 and A2) of the opening on the front surface and the back surface to the area (B1 and B2) of the opening on the two side surfaces is 0.005 to 0. .3 range,
In addition, a chemical volatilization body characterized in that a hook portion is provided above. The drug volatilizer according to claim 1, wherein the room-temperature volatile drug is one or two pyrethroids selected from transfluthrin, metfurthrin, and profluthrin. The substantially rectangular parallelepiped medicine container is assembled such that a flat sheet-like plastic member is bent and the bent surfaces are overlapped on one side and the upper and lower surfaces, and the tongue piece provided at the end of one bent surface is the other. It is formed so that it can be opened and closed by being inserted into a notch portion along the folding line of the folding surface, and the hook portion is extended so that it can be turned up by making a cut in the tongue piece portion of the folding surface on the upper surface. The chemical volatilization body according to claim 1 or 2, wherein The drug volatilizer according to claim 1 or 2, wherein the substantially rectangular parallelepiped drug container is an integral plastic molded product, and a hook portion is provided in the vicinity of the upper surface so as to be able to rise. The drug volatilization body according to claim 4, wherein a tip portion of the hook portion raised in use is configured to be locked to a part of the substantially rectangular parallelepiped drug container.

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