JPH06107505A - Repellent for mice and cockroaches - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an effective repellent material for mice and cockroaches such as high-tech buildings. [Composition] The heating loss of naphthalene and peppermint oil is 0.
For rats and cockroaches in which a solution containing 20 to 90% by weight of a solvent which is 05 to 0.20%, 5 to 40% by weight of naphthalene and 5 to 40% by weight of peppermint oil is contained in urethane foam in an amount of 50 to 150 kg / m ³ . A repellent material and a repellent material for mice and cockroaches, which is obtained by placing the repellent material in a container having an air permeability of 80 to 400 cc / cm ² / sec and a total air permeability of 250 to 1000 cc / sec.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repellent material for mice and cockroaches used under the floor of buildings and the like.

[0002]

2. Description of the Related Art In recent years, computer cables have been congested under the floor of high-tech buildings. These underfloors are air-conditioned and are a good place for mice and cockroaches. For this reason, it is unsanitary, and these small animals bite the wiring and cause short-circuiting, and the contact of the contactor that sends current to the motor of the air blower circuit such as an air conditioner causes small cockroaches to cause contact failure. However, the development of repellent materials for mice and cockroaches is urgently needed. Conventionally, there is creosote oil as a repellent for mice, cockroaches, and white spots that live outdoors in forests, and as a repellent for mice and cockroaches that live indoors, a taste that microencapsulates the pungent component of cycloheximide or pepper. There are sex repellents and insecticides (including adhesive tape). Creosote oil has a strong pungent odor and cannot be used indoors as it is. A taste repellent that microencapsulates the spiciness component of cycloheximide or chili pepper is kneaded with resin and used for coating electric wires, etc., but the rat biting the electric wire has the effect that it does not further bite, but it depends on the taste. And, the effect is limited to the mouse that carried the electric wire, and there is no effect of cleaning the mouse from under the floor such as high-tech building. In addition, it is expensive because it is microencapsulated. The insecticide is extremely unhygienic because the carcasses such as mice and cockroaches that are killed by the insecticide are troublesome to handle and are left as they are. As described above, no effective repellent material is provided at present.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems and to provide an effective repellent material for rats and cockroaches.

[0004]

[Means for Solving the Problems] The above-mentioned problems are claimed in the present application.
Of the invention "The weight loss on heating of naphthalene and peppermint oil is 0.0
A urethane foam containing 50 to 150 kg / m ^{3 of} a solution containing 5 to 0.20% of a solvent of 20 to 90% by weight, naphthalene of 5 to 40% by weight, and peppermint oil of 5 to 40% by weight. Repellent for mice and cockroaches "
And invention of claim 2 of the present application "air permeability is 80 to 400 cc /
cm ² / sec and total ventilation of 250 to 1000 c
The repellent material according to claim 1, which is placed in a container having a c / sec rate. Will be solved. The present invention will be described below.

The solvent for naphthalene and peppermint oil used in the present invention is a solvent which is relatively difficult to volatilize and is generally used as a plasticizer. The weight loss on heating according to JIS K 6751 is in the range of 0.05 to 0.20%. Things, DO
Examples thereof include phthalic acid plasticizers such as P, DHP, DBP, DMP, and DEP, epoxy plasticizers, and DOA.

The naphthalene used in the present invention may be either naphthalene or crude naphthalene. 95% of crude naphthalene (standard: JIS-K2436)
And 97% ((standard: OGS-A007-6). Among various repellents, camphor, which is contained in a large amount in the extract of camphor tree, is close to naphthalene as a repellent for mice. There is.

The peppermint oil used in the present invention is a well-known one that is obtained by cooling the essential oil obtained by steam-distilling the above-ground portion of peppermint or its interspecific hybrid to remove precipitated solids.

The urethane foam used in the present invention has an open cell bulk density of 15 to 50 (kg / m ³ ), but is economical, cell size, water retention, scattering of repellent agent, etc. Therefore, those having a bulk density of 20 to 40 (kg / m ³ ) are more preferable. Among these, those of high density include ester type, and those of low density include ether type polyurethane foam.

Naphthalene and peppermint oil are dissolved in the solvent of naphthalene and peppermint oil, and the solvent for naphthalene and peppermint oil is 20 to 90% by weight, and naphthalene is 5 to 40% by weight.
A mixed solution containing 5-40% by weight of peppermint oil is obtained. The urethane foam is impregnated with the mixed solution and squeezed to obtain a repellent material of the present invention having a mixed solution content of 50 to 150 kg / m ³ .

The air permeability used in the present invention is 80 to
400 cc / cm ² / sec with a total ventilation of 250
The container having a rate of up to 1000 cc / sec may be made of paper or plastic and is not particularly limited. In addition, the shape of the container is box type, cylindrical type, etc.
400 cc / cm ² / sec with a total ventilation of 250
There is no particular limitation as long as it is up to 1000 cc / sec. The air permeability in the present invention is JIS-L-109.
According to 6, the total air flow rate is the sum of the values obtained by multiplying the air permeability of each part by the area of the part. Air permeability 80~400cc / cm ²
/ Sec is the state where the repellent is volatilized, and the total ventilation differs depending on individual cases such as the size of the underfloor space and the state of the air flow, but the amount of gas generated from one place where the repellent is installed is , Repellent effect, persistence, etc. 250-1
000 cc / sec is good. The air permeability and the total air flow rate may be adjusted by providing an opening on the wall surface of the container and covering the opening with gauze or a non-woven fabric, or by opening a large number of fine holes on the wall surface of the container. In any case, the air permeability is 80 to 400 cc / cm ² / sec and the total air flow is 2
It is preferably 50 to 1000 cc / sec.

[0011]

[Function] Naphthalene and peppermint oil, which are repellents for mice and cockroaches, are easily vaporized as they are, and it is difficult to control repellent effect, human odor, persistence and the like. In the present invention, since the heating loss is used by dissolving it in a solvent of relatively low volatility of 0.05 to 0.20%, the repellent agent has a slow volatilization rate, and the repellent effect and its persistence should be controlled for a long time. Moreover, since it is impregnated in urethane foam, it is easy to handle and the volatile state is even easier to control. That is, by controlling the volume (the amount of the repellent contained) and the surface area of the repellent material of the first invention, it is possible to adjust the odor to humans, the repellent effect, the sustainability and the like to be preferable ones. Further, the repellent contained therein is volatilized from the surface of the urethane foam by placing it in a container having a gas permeability of the second invention of 80 to 400 cc / cm ² / sec and a total air flow rate of 250 to 1000 cc / sec, and once After filling the inside, it gradually diffuses into the space under the floor from the opening, so it is easier to control.

[0012]

[Examples] In the practice of the present invention, the repellent effect of this repellent material on cockroaches was examined, but the difference from the rat was persistent within ± 1 month, and the repellent effect of the present repellent material was different between the cockroach and the rat. can not see. [Example 1] DBP (dibutyl phthalate, manufactured by Shin Nippon Rika Co., Ltd., trade name Sanso Sizer) with a heating loss of 0.17%
To 1000 g, 150 g of crude naphthalene (manufactured by Osaka Gas Co., Ltd., trade name: 95% naphthalene) was dissolved, and to this, 300 g of mint oil (manufactured by Nippon Terpene Chemical Co., Ltd., Japanese Pharmacopoeia peppermint oil) was mixed and dissolved. 30 ^t × 1 of the mixed solution
50 × 150 (mm) open cells, ester type flexible polyurethane foam (manufactured by INOAC Corporation, trade name Moltoprene SC, bulk density 30 kg / m ³ , cell number 35 cells / inch) are impregnated and then squeezed with a squeezing roller. The repellent material of claim 1 having a bulk density of 110 kg / m ³ was obtained.

[Example 2] An ether type flexible polyurethane foam (manufactured by INOAC CORPORATION, trade name Color Foam ECS, bulk density 22 kg / m ³ , number of cells 95 / inch) was used in place of the ester type flexible polyurethane foam. Is the same as in Example 1 and has a bulk density of 120.
A repellent material according to claim 1 of the present application of kg / m ³ was obtained.

[Embodiment 3] A heating loss of 0.
A bulk density of 1 was obtained in the same manner as in Example 1 except that 08% DOA (di-2-ethylhexyl adipate, manufactured by Dainippon Ink and Chemicals, Inc., trade name Monosizer W-240) was used.
12 kg / m ³ of the repellent material according to claim 1 of the present application was obtained.

[Embodiment 4] Loss on heating of 0.
18% DMP (dimethyl phthalate, Kyowa Hakko Co., Ltd.)
A repellent material according to claim 1 of the present application having a bulk density of 115 kg / m ³ was obtained in the same manner as in Example 1 except that the product manufactured by DMP was used.

[Comparative Example 1] A heating loss of 0.
A repellent material having a bulk density of 110 kg / m ³ was obtained in the same manner as in Example 1 except that 02% of DINP (diisodecyl phthalate, manufactured by Shin Nippon Rika Co., Ltd., trade name Sansocizer DINP) was used.

[Comparative Example 2] In place of DBP, a solution in which 0.23% by weight of butyl alcohol was dissolved in DINP (diisodecyl phthalate, manufactured by Shin Nippon Rika Co., Ltd., trade name Sansocizer DINP) was used. A repellent material having a bulk density of 110 kg / m ³ was obtained in the same manner as in Example 1.

[Container] [Container 1] A plastic plate having an air permeability of 0 is processed to have a height of 4
Create a rectangular parallelepiped closed container of 0 mm x 170 mm x 170 mm, and have a diameter of 11.3 mm at the approximate center of the four side surfaces.
A circular opening is provided, and the opening has an air permeability of 100 cc / c.
Covered with non-woven fabric of m ² / sec, total ventilation of 400cc / se
A container of c was obtained. The repellent material of Example 1 was added and tested.

[Container 2] Air permeability 100 cc / cm ² / s
Air permeability of 150 cc / cm ² / se instead of ec non-woven fabric
A container with a total ventilation of 600 cc / sec was obtained in the same manner as in [Container 1] except that the nonwoven fabric of c was used. The repellent material of Example 2 was added and tested.

[Container 3] Air permeability 100 cc / cm ² / s
Air permeability of 200 cc / cm ² / se instead of ec non-woven fabric
A container with a total ventilation of 800 cc / sec was obtained in the same manner as in [Container 1] except that the nonwoven fabric of c was used. Examples 3, 4
And the repellent materials of Comparative Examples 1 and 2 were put into each of them and tested.

[Container 4] Air permeability 100 cc / cm ² / s
Air permeability of 400 cc / cm ² / se instead of ec non-woven fabric
A container with a total ventilation of 1600 cc / sec was obtained in the same manner as in [Container 1] except that the nonwoven fabric of c was used. The repellent material obtained in Example 1 was put into the test.

[Test] Repellent: Examples 1 to 4 and Comparative Examples 1 to 1 as shown in FIG.
The repellent material of 30 ^t × 150 × 150 (mm) obtained in 3.

Repellent container: 30 ^t × 150 × 150 obtained in Examples 1 to 4 and Comparative Examples 1 to 3 as shown in FIG.
(Mm) Repellent material is inserted into 4 sides at approximately the center of diameter 1
40 mm high x 1 mm long with 1.3 mm circular opening
70 mm x 170 mm wide rectangular parallelepiped closed container.

Rearing box 1: height 4 on the front as shown in FIG.
cm, width 4 cm, entrance / exit 2 and glass lid 3 (5 mm thick x 22 cm vertical x 2 horizontal) that can be opened and closed on the top surface (ceiling surface)
2 cm) height 15 cm, width 20 cm, depth 1
80 cm rectangular parallelepiped box 4 made of stainless steel.

Test device 5 for repelling property: As shown in FIGS. 4 and 5, four breeding boxes 1 are mutually connected to the north, south, east, and west of the entrance / exit 2.
A device in which a wire mesh 6 is stretched between the boxes so that the placed mice do not escape to the outside.

Tests 1 to 4: The repellent materials obtained in Examples 1 to 4 were put into containers 1 to 3 and tested. Tests 5 and 6: The repellent materials obtained in Comparative Examples 1 and 2 were put in containers 3 and tested. Test 7: The repellent material obtained in Example 1 was put into the container 4 and tested.

Repellent test: Test device 5 in an air-conditioned room
As shown in FIG. 2, the glass lid 3 of the test apparatus 5 is opened, and the food container 9 containing food (solid feed and vegetables) under the same conditions is inserted into the rear of the housing device 1 in order from the rear of the rearing device 1. 1, the water supply device is set at the central position of the test apparatus 5, and the test body 7 is set in three breeding boxes 1. Next, place three mice (fast-growing mice) that have been fasted for 24 hours into the breeding box 1 that does not contain the test body 7 by opening the glass lid 3 and observing the state of the mice for 8 days. To do. After the test, the water supply device 8 and the food container 9 with food are removed, and new water and food are added and used in the next test.
The test body 7 is kept as it is. The test was conducted every 6 months for 2 years. The case where the food containing the food (solid feed and vegetables) was lost by the lapse of 8 days was evaluated as ◯, and the case where the food was not lost was evaluated as x.

Interpersonal odor: Air conditioning of 2.7 m in height × 4.5 m in width × 9.0 m in width with glazing of 10 cm × 26.5 cm × 53 cm in height, one at each corner (vertical side) of the floor. Under the floor of a room (height 10 cm x length 4.5 m x width 9.0)
The repellent material contained in each container used in each test was set in m), and the odor in the room was checked, and interviews were conducted with 5 people, and odor was not felt, and odor was felt. The test results are shown in Table 1.

[0029]

[Table 1]

[0030]

As can be seen from the test results, the repellent material of the present invention is not felt by humans, and the repellent effect on mice and cockroaches continues for a long period of time.

[Brief description of drawings]

FIG. 1 is a schematic view of a repellent material used in a test.

FIG. 2 is a schematic view of a closed container of repellent material used in a test.

FIG. 3 is a schematic view of a breeding box used in the test.

FIG. 4 is a schematic plan view of the repellent test device used for the test.

FIG. 5 is a schematic side view of the repellent test device used in the test.

[Explanation of symbols]

 1: Breeding box 2: Doorway 3: Glass lid 4: Stainless steel box body 5: Repellent test device 6: Wire mesh 7: Case of test body 8: Water supply device 9: Feed (solid feed and vegetables) Feed tray 10: Repellent material 11: Closed container of repellent material 12: Opening

Claims (2)

[Claims] 1. A solution of naphthalene and peppermint oil containing 20 to 90% by weight of a solvent having a heating loss of 0.05 to 0.20%, 5 to 40% by weight of naphthalene, and 5 to 40% by weight of peppermint oil. 50 to 150 kg / m for urethane foam
^A repellent material for rats and cockroaches, which is characterized by containing ³ . 2. The air permeability is 80 to 400 cc / cm ² / s.
ec with a total ventilation of 250 to 1000 cc / sec
The repellent material according to claim 1, wherein the repellent material is placed in the container.