JPS6314701A - Insecticide - Google Patents

Abstract

PURPOSE:An insecticide to be expected especially as an improved insecticide for clothes, showing improved insecticidal effects with a small amount, keeping its effects for a long period and safety, comprising tricyclene as an active ingredient. CONSTITUTION:An insecticide containing tricyclene(=1,7,7-trimethyltri cyclo[2.2.1.0]heptane having subliming properties and improved insecticidal properties by a scattered gas thereof as an active ingredient. Tricyclene is a terpene hydrocarbon which is solid having 67.5-68 deg.C melting point and obtained from pinaceous branch and leaf oil and also obtained from pinene as a raw material. Since the compound is solid, powder is packed into an air- permeable bag such as Japanese paper, etc., tablets or pellets are put in a small bag such as plastic or water-vaporproof cellophane, etc., having properly bored small holes and used as existing subliming insecticides are used. Triclene may be used alone or is usable as a blend with another subliming insecticide.

Description

[Detailed description of the invention] [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 general agricultural and horticultural insecticides, 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 insects 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 are dispersed in a relatively short period of time, so they cannot 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 found that 1,7
．． 7-trimethyltricyclo[2,1,1,0heptane (hereinafter referred to as tricyclene) has sublimation property,
It was discovered that the insecticidal properties of the diffused gas are excellent, and the present invention was achieved.

Tricyclene is a solid with a melting point of 67.5°C to 68°C, and is a terpene hydrocarbon obtained from the oil of the branches of the Pinaceae family. or,
Manufactured from pinene.

When a small quantity of Tricyclen was placed in a 1Q beaker, a few burr larvae were placed in the beaker, the lid was covered, and the beaker was left for several days, most of them were killed by the steam released from Tricyclen.

Tricyclene is a solid, so just like conventional sublimation insect repellents, the powder can be packed into a breathable bag such as Japanese paper, or the tablets or pellets can be stored in a bag made of plastic or moisture-proof cellophane with appropriate small holes punched in it. . This can be applied to tricyclene 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,
Place 10 bur larvae together with wool in a glass container of approximately 0.12Q, and heat at 20°C (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. [Effects of the Invention] Tricyclene of the present invention is a strong insect repellent and has excellent insect repellent properties even in small amounts, and its 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 % 1. Indication of the case Patent application fee No. 157383 of 1988 2. Name of the invention 3. Person making the amendment Relationship with the case Patent applicant address Tokyo Aga Kanketsu VR 1-4-1o Name
Esthetic Chemical Co., Ltd. September 30, 1988 (shipment date) 5. Application and specification subject to amendment (type engraving) 6. Contents of amendment as attached (no change in content)

Claims (1)

[Claims] 1,7,7-trimethyltricyclo[2.2.1.0]
An insect repellent containing heptane as an active ingredient.