JPS6183102A - Insecticidal material comprising subliming substance as base - Google Patents

Abstract

PURPOSE:An insecticidal material capable of showing effect sufficiently by indirect placement requiring no contact use of target materials to control insects with a small amount of it, obtained by adding an oily insecticidal spray volatile at normal temperature to a molded base of subliming substance such as naphtha lene, etc. CONSTITUTION:1pt.wt. subliming substance powder (e.g., p-dichloro-benzene, naphthalene, or camphor) is blended with 0.1pt.wt. oily insecticidal spray(e.g., 4-methyl-4-hepten-1-in-3-yl d-cis, chrysanthemate), tableted, granulated or pow dered to give an insecticidal material. This insecticidal material is easily usable becasue it requires no direct placement on clothes, etc., target materials on control insects, as existing insecticidal materials are used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of an insect repellent material that has excellent volatility of the main insect repellent agent and can be made smaller and lighter.

More specifically, it is an insect repellent material that can uniformize the volatilization amount of an oil-based insect repellent liquid that is volatile at room temperature by the action of sublimation in a sublimable substance applied as a base material, and can exhibit an efficient insect repellent function. .

[Conventional technology]

Conventionally, as a sublimable insect repellent, a sublimable insect repellent such as paradichlorobenzole, naphthalene, or camphor is generally compressed into tablets or granules.

[Problem that the invention seeks to solve]

Due to its insect repellent power and sublimation/diffusion ability, conventional insect repellent materials are installed directly on clothing, etc. to be protected against insects, and are used in large quantities. I needed to. Conventional methods of using insect repellent materials are appropriate when the clothing, etc. to be protected against insects is taken out and put in and out of a chest of drawers over a long period of time, for example, but it is often used for short-term purposes. At times, the insect repellent materials have the disadvantage that they are particularly difficult to install and are used poorly or not at all.

The present invention eliminates the drawbacks of conventional insect repellent materials, and provides an insect repellent material that can be sufficiently effective with a small amount of dosage and by indirect placement that does not require contact with the target. is intended to provide.

[Means for solving problems]

In order to achieve the above object, the present invention employs the following structure for the insect repellent material. That is, the present invention is an insect repellent material based on a sublimable substance, characterized in that an oil-based insect repellent liquid volatile at room temperature is stored in a molded base material of a sublimable substance.

The above-mentioned insect repellent liquid agent is a liquid agent that is liquid at room temperature, especially oily, and exhibits volatility enough to exhibit an effective insect repellent effect at room temperature, such as 4-methyl-4-hepten-1-yn-3- il d-cis, trans-chrysanthemate,
0-(2゜2-dichlorovinyl)0.0-dimethylphosphate, 2,5,4,5.6-pentafluorobenzyl 2,2-dimethyl-3-(z',z'-dichloroethynyl)cyclo Examples include propane-1-carboxylate.

Further, in the present invention, the sublimable substances that can be applied to the molding base material include, for example, 2
, 4.6-) linpropyl-1,3,5-1-lioxane, tricyclo[5,2,1,O”-)decane, acetone oxime, amyl carbamate
, butyl carbamate
te), parabutyraldehyde (p-arabuty
l aldehyde), chloral ammonia (C
chloro ammonia), Chloro acetaniLid, Chloro cresol, Cyclo hexanon oxime
oxim), diacetamide
e), dichloroacetone (Dichlo-ro 1c
etone), dichlorobenzene (Dichlor.

benzene), dichloropentane (Dichlo
rop-entane), Dihydroxyhexane, Dimethyl oxalate
), dimethyl quinone (Dimeth-yl quinone)
one ), ethyl crotonic acid (Etby
crotonic acid), furfural oxime, etc., and the above-mentioned paradichlorobenzole (Paradich
loro b-enzols), naphthalene (Nap
hthalene) and camphor.

The insect repellent material based on the sublimable substance according to the present invention is manufactured by the following manufacturing method example. That is, it is obtained by first weighing a powder of a sublimable substance, mixing it with an oil-based insect repellent solution that is volatile at room temperature, and tableting, granulating, or powdering this mixture. In this case, the mixing ratio of each component in the above mixture may be, for example, a ratio of 0.1 part (by weight) of the insect repellent solution to 1 part (by weight) of the sublimable substance; Alternatively, it is preferable that the volatilization rates are the same.

[For production]

In the insect repellent material based on a sublimable substance according to the present invention having the above-described structural characteristics, as the molded base material portion of the sublimable substance sublimates and disappears, the insect repellent liquid contained therein is sequentially exposed on the surface. In addition to increasing the volatilization rate, the sublimation ability of the sublimable substance itself promotes the volatilization of the insect repellent solution contained therein.

〔Example〕

(Example 1) 2.4.6-IJ isopropyl as a sublimable substance
Powder qaam' of 1,3,5-1-lioxane (melting point: 6C 2,5°C boiling point = 195.2/76o, Hg, sublimation pressure: 0.28"Hg/300c)
4-methyl-4-hebuten-1-yn-3-yl d-cis, trans-chrysanthemate oil liquid 100rn9 as an oil-based insect repellent liquid agent volatile at room temperature is mixed into i and tableted, 1 g of insect repellent material (A) was obtained.

This insect repellent material (A) is wrapped in breathable Japanese paper and placed in a clothes drawer for 6 months from spring to summer.
! capacity). As a result, it was confirmed that the molded substrate continued to exhibit an effective insect repellent function during the installation period, and that most of the insect repellent insects disappeared from the molded base material.

In addition, with respect to the drawer capacity of a chest of drawers (501 capacity), with conventional sublimation insect repellent materials, -5 to 10 packages of about 4g per color are used.
In contrast, the insect repellent material according to the present invention requires -
This could be achieved by using two packages containing 1 to 2 g per package. That is, the insect repellent material based on the sublimable substance according to the present invention exhibits an insect repellent effect 10 to 20 times that of conventional materials.

(Example 2) Tricyclo[S, 2. IQf, 6
] Decane (melting point near 7-78℃, boiling point: 187℃,
Sublimation pressure: 3m1 horse. ℃) was mixed with 100 μg of 4-methyl-4-hebuten-1-yn-3-yl d-cis, trans-chrysanthemate oil liquid as an oil-based insect repellent solution volatile at room temperature. Press into tablets, add insect repellent material (B
) was obtained.

This insect repellent material (B) was subjected to the same test as in Example 1,
Similar results were obtained regarding the insect repellent function.

(Example 3) The following test was conducted regarding the volatilization performance of an oil-based insect repellent liquid that is volatile at room temperature.

The specimen was prepared using insect repellent material (A), insect repellent material (B), and non-woven fabric coated on one side with polyethylene film (
A paper-like material (5c+++
C), and the amount of volatilization of the insect repellent liquid formulations contained in each was compared under the environmental conditions of installing the insecticides in a drawer (501 capacity) of a wardrobe in early summer.

The results are listed in Table 1 for the amount of volatilization for 3 weeks and in Table 2 for the amount of volatilization for 5 weeks.

Table 1〉 (Units - ■) Table 2〉 (Units, 1n9) From the results in Tables 1 and 2, it can be seen that the insect repellent liquid contained in each sample is stable. Furthermore, it can be confirmed that sample (A) and sample (B) exhibit significantly superior volatilization performance compared to sample CG'), and these points can be explained by the sublimation according to the present invention. The present invention is intended to enhance the above-mentioned effects of insect repellent materials based on sexual substances.

(Example 4) Powder 90 of paradichlorpenzole as a sublimable substance
0η was mixed with 100 μ of 4-methyl-4-hebuten-1-yn-6-yl d-cis, trans-chrysanthemate oil solution as an oil-based insect repellent solution volatile at room temperature, and the mixture was tableted. , 1 g of insect repellent material (D) was obtained.

This insect repellent material CD) was divided into halves, each 0.5 g of the divided pieces was wrapped in breathable Japanese paper, and the same test as in Example 1 was conducted using this, and the same results regarding the insect repellent function were obtained.

In this way, when a sublimable insect repellent agent is applied as a sublimable substance that is a forming base material, the insect repellent effect is further enhanced, and as a result, an insect repellent material that is smaller and lighter can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide an insect repellent material that has excellent volatility of the insect repellent liquid agent contained therein and can be made smaller and lighter. In addition, new and diverse uses such as installing the device in a component such as a chest of drawers, etc., are possible, which do not pose a hindrance to the object to be insect-protected.

Claims (3)

[Claims] (1) An insect repellent material using a sublimable substance as a base material, characterized in that an oil-based insect repellent liquid volatile at room temperature is contained in a molded base material of a sublimable substance. (2) The oil-based insect repellent liquid volatile at room temperature is 4-methyl-4
-hepten-1-yn-3-yl d-cis, trans-
An insect repellent material based on the sublimable substance according to claim 1, in which the insect repellent material is chrysanthemate. (3) An insect repellent material based on the sublimable substance according to claim 1 or 2, in which the sublimable substance is a sublimable insect repellent such as paradichlorobenzole, naphthalene, or camphor.