JPS635006A - Insecticide - Google Patents

Abstract

PURPOSE:An insecticide having insecticidal properties even with a small amount, keeping effects for a long period and high safety, containing camphene as an active ingredient. CONSTITUTION:Camphene is used as an active ingredient for insecticide, especially insecticide for clothes. Camphene has sublimation, improved insecticidal properties by the sublimated gas and keeps effects for a long period. Besides, camphene has low toxicity to men and animals, characteristics as insecticide for clothes such as neither staining nor damaging clothes and effectiveness against specific insects such as clothes moth, etc., so camphene is expected to be useful an improved insecticide replacing conventional insecticide such as naphthalene, camphor, p-dichlorobenzene, etc. Since camphene is solid, it is usable similarly with existing subliming insecticides. In the use, camphene may be used alone or together with other subliming insecticides.

Description

[Detailed description of the invention] C Industrial application field] The present invention relates to a novel insect repellent.

[Conventional technology]

There are many insect repellents and insecticides that have been used in the past, but unlike insecticides for general agriculture and horticulture, there are not many insect repellents for clothing that are used in clothing storage furniture and containers in the home.

This is because it has low toxicity to humans and livestock, does not contaminate or damage clothing, etc., and is effective against specific soils such as burrs.

Therefore, insect repellents that have been used for a long time, such as naphthalene, camphor, and para-dichlorobenzene, are still used in considerable quantities because of their good properties.

[Problem that the invention seeks to solve]

However, these insect repellents have low efficacy and dissipate in a relatively short period of time, so they do not maintain their effectiveness over a long period of time, require frequent replenishment, and therefore require a large amount of use.

It has been desired to develop a new insect repellent that is safe and effective for a long period of time with a relatively small amount.

[Means for solving problems]

As a result of various studies on compounds related to or peripheral to compounds used as insect repellents, the present inventor discovered that camphene has sublimation properties and has excellent insecticidal properties due to its vaporized gas, and has thus arrived at the present invention. did.

Camphene has a melting point of 5 for both α-form, Q-form, and quasi-form.
It is a highly safe compound that is a solid at 2°C and is contained in naturally occurring essential oils such as turpentine oil, ciblet oil, camphor oil, avinis oil, lemon oil, and citronella oil.

In addition, when a small amount of camphuene, which is produced industrially from pinene as a raw material, was placed in an IQ beaker, several burr larvae were added, the lid was covered, and the mixture was left for several days. died out.

Kangfuen is a solid, so just like conventional sublimation insect repellents, the powder is packed into a breathable bag such as Japanese paper, or the tablets or pellets are stored in a plastic or moisture-proof cellophane bag with appropriate small holes punched in it. . This can be applied either alone or in combination with other sublimable insect repellents.

〔Example〕

Weigh 1 g of drug into a glass lidded container with an internal volume of approximately IQ,
10 bur larvae were placed at the bottom of the container, and then placed in a glass container with a diameter of about 0.1212, and heated at 20℃ (75%R).
, H) was left in a constant temperature and humidity chamber for one week.

The test results were taken as the average of the amount of feeding damage and the number of deaths for the five tested specimens.

The test results are shown in Table 1.

Table 1 [Effects of the Invention] The camphene of the present invention is a strong insect repellent and has excellent insect repellent properties even in small amounts, and the effect remains for a long period of time.

In addition, since it has properties as an insect repellent for clothing, it is expected to be an excellent insect repellent that can replace conventional insect repellents.

Patent applicant Esthe Kagaku Co., Ltd. Procedural amendment (method) % formula % Engineering, case indication 1985 Patent application fee No. 147566 2, name of invention Insect repellent 3, person making the amendment Relationship with the case Patent application Address: 1-4-1o Shimoai, Shinjuku-ku, Tokyo Name
Esthe Kagaku Co., Ltd. August 26, 1985 (Shipping) 5. Application and specification subject to amendment (type engraving) 6. Contents of amendment as attached (no change in content)

Claims (1)

[Claims] An insect repellent containing camphene as an active ingredient.