JPH05286807A - Noxious life repelling composition and noxious life repelling cable - Google Patents

Abstract

PURPOSE:To provide a noxious life repelling composition exhibiting excellent olfactory repelling effect on noxious life such as rat and having excellent thermal stability and long-term durability of the effect resistant to the deterioration with heat in processing and use. CONSTITUTION:The objective noxious life repelling composition is produced by using (A) a terpenoid compound oligomer in combination with (B) a high- boiling repellent having a boiling point of 200-500 deg.C. The noxious life repelling cable has a cable sheath 4 composed of a composition containing the above repelling component.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pest repellent composition having an excellent repellent effect on rats and other pests and excellent thermal stability, and a pest repellent cable using the same.

[0002]

2. Description of the Related Art In recent years, due to the diversification of usage environments,
Damage to cables by various pests such as mice, termites, carnivorous insects, and molds is increasing. Among them,
Significant increase in feeding damage due to mice, increase in power demand, various types of O
Along with the widespread use of A-equipment and changes in the environment such as architectural styles, it has become a major social problem. This is because when the electric wire / cable is cut or damaged by the mouse, it causes serious problems such as power failure, communication interruption, and abnormal operation of electric equipment due to electric leakage or abnormal current.

By the way, as a countermeasure against this kind of damage, a repellent has been conventionally blended in the sheath material of the cable, and cycloheximide is generally used as the repellent.

[0004] However, since cycloheximide is a taste repellent and produces a repellent effect by one-time biting, there is a problem that "test scratches" are always formed on the cable.

On the other hand, as a repellent, a terpenoid compound based natural substance is known. This terpenoid compound repellent is an odor repellent that acts on the odor of animals to repel it, and since it has little effect on the environment and humans and animals, its application as a repellent for electric wires and cables replacing cycloheximide is applicable. Is being considered.

However, the conventional terpenoid compound repellents generally lack thermal stability, and there is a problem that the active ingredient is decomposed and volatilized by the heat applied during extrusion coating on the outer circumference of the cable or by heat during use. ..

[0007]

As described above, in recent years, there has been a demand for a cable having an excellent repellent effect against pests, especially rats.

However, the conventionally known repellent cable uses a taste repellent as a repellent,
The terpenoid compound repellents, which have insufficient repellent effects and are expected to be used as repellents in place of taste repellents, have a drawback that they lack thermal stability.

The present invention has been made in response to the above problems of the prior art, and exhibits an excellent odor-repelling effect against various pests including rat, and the effect is heat during processing and use. It is an object of the present invention to provide a pest repellent composition excellent in thermal stability and long-term sustainability that is not impaired by, and a pest repellent cable using the same.

[0010]

The pest repellent composition of the present invention is characterized by containing (a) a terpenoid compound oligomer and (b) a high boiling point repellent having a boiling point of 200 to 500 ° C. In addition, the pest repellent cable of the present invention is a cable
In the outermost layer of the bull, (a) terpenoid compound oligomer,
(b) It is characterized by having a coating layer made of a composition containing a high-boiling point repellent having a boiling point of 200 to 500 ° C.

First, the pest repellent composition of the present invention will be described.

As the terpenoid compound oligomer as the component (a), homopolymers and low copolymers of terpenoid compound monomers having an average molecular weight of 1000 or less and a degree of polymerization of about 2 to 7 are suitable. May be used alone or in combination of two or more.

The terpenoid compound monomer is β
- myrcene (C ₁₀ H _16), alloocimene (C ₁₀ H _16),
Citral (C ₁₀ H ₁₆ O), Linalol (C ₁₀ H
₁₆ O), limonene (C ₁₀ H ₁₆ ), dipentene (C
₁₀ H ₁₆ ), terpinene (C ₁₀ H ₁₆ ), terpineol (C ₁₀ H ₁₈ O), anethole (C ₁₀ H ₁₂ O), pinene (C ₁₀ H ₁₆ ), nopole (C ₁₁ H _{16 19} O), camphene (C ₁₀ H _16), Nopiruasete - DOO _{(C 13 H 21 O 2)} , isobornyl a Sete - DOO (C ₁₂ H ₂₀ O _2), etc. are exemplified. Such terpenoid compound monomers are a group of compounds contained in plant essential oils or resin gums obtained by steam distillation of various parts of plants, are aroma and essential oil components of plants, and have no influence on the natural cycle. It is a substance that is not given and is therefore harmless to humans and animals.

In the present invention, these terpenoid compound oligomers have a particle size of about 0.5 to 150 μm and a surface area of about 0.5 to 150 μm in order to facilitate the handling, improve the dispersibility, and maintain the effect for a longer period of time. Pore size is 20
It may be supported on a porous inorganic particle having a particle size of about 1000 mμ, for example, a porous particle composed of calcium carbonate, calcium silicate, silica, etc., and may be used as a so-called microcapsule. In this case, the supported amount of the terpenoid compound oligomer is 30 ml or more per 100 g of silica, for example.

When the terpenoid compound oligomer is used in the form of microcapsules, a retention agent can be added in order to further enhance the durability of the repellent effect. Examples of the retaining agent include polyhydric alcohols (glycerin, glycol, sorbitol, polyethylene glycol, etc.), sugars (sucrose, lactose, glucose, etc.), diethyl phthalate, benzyl benzoate and the like.

The high-boiling point repellent of the component (b) has a boiling point of
It has a repellent effect in the range of 200 to 500 ° C. If the boiling point is lower or higher than the above range, the effect of the combined use with the component (a) cannot be obtained. As such, diphenyl, ethyldiphenyl, diethyldiphenyl, terphenyl, nonylphenol, dinonylphenol, dodecylphenol, phenylphenol,
Examples include diphenyl ether, diphenyl thioether, dibenzyl ether, methyl naphthyl ether, ethyl naphthyl ether, diethylene glycol ethyl ether acetate, diethylene glycol butyl ether acetate, polyoxypropylene glycerol, isobornyl thiocyanoacetate, and octachlorodiprohiru ether. These may be used alone,
You may make it mix and use 2 or more types.

The mixing ratio of the terpenoid compound oligomer as the component (a) and the high boiling point compound as the component (b) is 9: 1 by weight.
A range of ~ 3: 7 is suitable. When the amount of the terpenoid compound oligomer as the component (a) is less than the above range,
This is because the repellent effect and the durability are lowered, and conversely, when the amount is more than the above range, the thermal stability is lowered.

In the present invention, the high-boiling point repellent of component (b) also has a solid solid property, together with or separately from the terpenoid compound oligomer of component (a).
In order to make the handling easier, improve the dispersibility, and maintain the effect for a longer period, the particle size is 0.5 to 1
It may be used by forming it into a so-called microcapsule by supporting it on a porous inorganic particle having a surface pore size of about 50 μm and a surface pore size of about 20 to 1000 mμ.

The pest repellent composition of the present invention comprises
In addition to the above components, an antioxidant and other additives for preventing deterioration such as oxidation during storage may be added within a range that does not impair the effects of the present invention.

Next, the pest repellent cable of the present invention will be described.

The composition constituting the outermost layer of the pest repellent cable is basically composed of (a) a terpenoid compound oligomer and (b) a base cable coating composition.
It is a mixture of a high boiling point repellent having a boiling point of 200 to 500 ° C and other additives to be blended as necessary.

Examples of the base composition include vinyl chloride resin compositions, olefin resin compositions, chloroprene rubber compositions, chlorosulphonated polyethylene resin compositions, polyester elastomer compositions, urethane elastomer compositions and the like. It The terpenoid compound oligomer of component (a) and the boiling point of component (b) are 200 to 500 ° C.
The high boiling point repellent is as described above.

The terpenoid compound oligomer as the component (a) and the high boiling repellent having a boiling point of the component (b) of 200 to 500 ° C. are 0.01 to 10% by weight and 0.01 to 10% by weight, respectively.
~ 10 wt% range (with microencapsulated,
As the amount of the active ingredient) is preferable, and if the amount is too small, the effect of the present invention becomes insufficient, and if the amount is too large, the workability is deteriorated and the original properties of the cable may be impaired.

[0024]

In the pest repellent composition of the present invention, (a)
Terpenoid compound oligomer of (b) and boiling point of 200 ~
The specific combination of using a high boiling point repellent at 500 ℃ improves the thermal stability of the terpenoid compound oligomer of (a) without impairing its original odor repellent effect and its long-term sustainability. It Therefore, it becomes possible to perform heat processing such as extrusion to the outer circumference of the cable, and since the repellent effect is not lost early by the heat when the cable is used, the pest repellent cable of the present invention using this is long-term. It is possible to repel various pests including mice.

[0025]

EXAMPLES Next, examples of the present invention and comparative examples will be described.

Examples 1 to 3 In a soft vinyl chloride resin composition, as a repellent component, alloocimene oligomer and dibenzyl ether (boiling point 289 ° C)
Were added at a weight ratio of 4: 1 and mixed uniformly by a mixing roll to obtain each compound having a total content of the terpenoid compound oligomer and dibenzyl ether as shown in Table 1. Then, each compound is
As shown in Fig. 2, a conductor (cross-sectional area 2 mm ² ) 1 and an insulator (thickness 0.8 mm) 2 made of cross-linked polyethylene on the outer circumference of the cable core 3 have a thickness of 1.5 mm as a cable sheath 4.
Coated to produce a pest repellent cable with an outer diameter of 6.4 mm.

Examples 4 and 5 In place of the alloocimene oligomer and dibenzyl ether, a dipentene oligomer and methylnaphthyl ether (boiling point 274 ° C.) were mixed in a weight ratio of 9: 1.
30 ml of this mixture was mixed with 100 g of silica-based porous microcapsules (average particle size: 5 μm, average pore size of the surface: 100 mμ) under reduced pressure, then returned to normal pressure, and the resulting microcapsules were used. Example 1 except that the amounts of active ingredients, that is, terpenoid compound oligomer and methylnaphthyl ether, were changed as shown in Table 1.
A pest repellent cable was manufactured in the same manner as in.

Comparative Example 1 Pest repellent was carried out in the same manner as in Example 1 except that the terpenoid compound oligomer was used alone without using dibenzyl ether as the repellent component and the blending amount was as shown in Table 1. Manufactured cables.

Comparative Examples 2 and 3 A pest repellent cable was produced in the same manner as in Example 1 except that cycloheximide was used as the repellent component and the compounding amount was changed to the amount shown in Table 1.

Next, the pest repellent cables obtained in the above Examples and Comparative Examples and these cables were
10 to 15 cm test pieces were cut out from each cable that had been left to stand at 00 ° C for 5 days to be thermally deteriorated, and the rat repellent effect was examined.

That is, the test piece was placed in a rat cage together with water and left for 1 week to observe the presence or absence of bite.

The above results are summarized in Table 1.

[0033]

[Table 1]

[0034]

As described above, the pest repellent composition of the present invention has a boiling point similar to that of the terpenoid compound oligomer.
By using a high boiling point repellent at 200-500 ° C together, it has an excellent odor repellent effect against various pests including rats, and also has excellent thermal stability and long-term sustainability.

Therefore, the pest repellent cable of the present invention using the same does not cause the repellent effect to be lost early by heat during processing or use, and can prevent various pests from remaining for a long period of time. You can avoid it completely.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the pest repellent tape of the present invention.

[Explanation of symbols]

 1 ... Conductor 2 ... Cross-linked polyethylene insulator 3 ... Cable core 4 ... Cable sheath containing repellent component

Continued Front Page (72) Inventor Kazumi Ito 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki-shi, Kanagawa Within Showa Electric Cable Denki Co., Ltd. (72) Shin Yoshida 2-1-1 Oda, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 Showa Electric Cable Co., Ltd.

Claims (2)

[Claims] 1. (a) a terpenoid compound oligomer,
(b) A pest repellent composition comprising a high boiling point repellent having a boiling point of 200 to 500 ° C. 2. The outermost layer of the cable has a coating layer made of a composition containing (a) a terpenoid compound oligomer and (b) a high boiling point repellent having a boiling point of 200 to 500 ° C. Pest repellent cable to.