JP2004043360A - Insecticide transpiration device and method for transpiring insecticide by using the same - Google Patents

Insecticide transpiration device and method for transpiring insecticide by using the same Download PDF

Info

Publication number
JP2004043360A
JP2004043360A JP2002202851A JP2002202851A JP2004043360A JP 2004043360 A JP2004043360 A JP 2004043360A JP 2002202851 A JP2002202851 A JP 2002202851A JP 2002202851 A JP2002202851 A JP 2002202851A JP 2004043360 A JP2004043360 A JP 2004043360A
Authority
JP
Japan
Prior art keywords
insecticide
transpiration
heating element
organic ptc
ptc heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002202851A
Other languages
Japanese (ja)
Inventor
Yoshihiro Namite
南手 良裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainihon Jochugiku Co Ltd
Original Assignee
Dainihon Jochugiku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainihon Jochugiku Co Ltd filed Critical Dainihon Jochugiku Co Ltd
Priority to JP2002202851A priority Critical patent/JP2004043360A/en
Publication of JP2004043360A publication Critical patent/JP2004043360A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Catching Or Destruction (AREA)
  • Resistance Heating (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insecticide transpiration device which is a unique style different from conventional insecticide transpiration styles and has good transpiration performance, usability and profitability, and to provide a method for transpiring the insecticide with the device. <P>SOLUTION: The insecticide transpiration device is characterized by mounting an organic PTC (a positive thermister) heat generator made by kneading a polyolefin resin-carbon mixture with a cyclopropane carboxylate-based pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25°C. The method for transpiring the insecticide with the device is characterized by kneading a silicone resin with the above pyrethroid insecticide, coating the polyolefin resin-carbon mixture with the kneaded product, mounting the prepared organic PTC heat generator on the insecticide transpiration device, and then electrically thermally transpiring the insecticide. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【産業上の利用分野】
本発明は、殺虫剤蒸散装置及びこれを用いた殺虫剤蒸散方法に関するものである。
【0002】
【従来の技術】
従来より殺虫等の目的で殺虫成分を加熱蒸散させる方法として、(1)蚊取線香、(2)電気蚊取マット、(3)液体蚊取などが愛用されている。このうち、電気蚊取マットは、殺虫成分を含浸させた繊維質製マットを、加熱蒸散装置の該マットと略同形状の放熱板上に載置し、通電により加熱して殺虫成分を蒸散させるもので、放熱板の中心部の温度は140〜180℃の範囲に設定されている。電気蚊取マットは使いやすい製剤であるが、マットの底面全体が放熱板により加熱されるので、揮散調整剤を添加しても殺虫成分の揮散量は経時的に減少する。一方、薬液中に吸液芯を浸漬し、芯上部を加熱して薬液を加熱蒸散させる液体蚊取の場合、芯上部を間接加熱する構成のため発熱体の温度は電気蚊取マットに比べて若干低くなっている。この方式は一度薬液ボトルを装着するだけで30〜90日間効果が持続するので便利である反面、液漏れ等の危惧は避けられない。
【0003】
電気蚊取マット方式の使いやすい長所を取り入れ、かつ長期間効果の持続する製剤の開発も試みられ、例えば特開平5−194103号公報や特開平6−192007号公報には、熱可塑性樹脂粉末と無機粉末及び/又は有機粉末からなる混合物を熱可塑性樹脂粉末の融点付近に加熱してなる加熱蒸散用薬剤含有体が開示されている。そして、熱伝導性のよい担体を用いることにより加熱温度を下げえることが記載されているが、長期間にわたり安定した蒸散性能を得るのは難しい。
【0004】
【発明が解決しようとする課題】
従来の殺虫剤蒸散装置はすべて、発熱体を固定した装置に、殺虫剤を含むマット、ボトルなどの担体を装着し、殺虫剤を含む担体から殺虫剤を蒸散させようとするもので、発熱体と殺虫剤担体を2パーツにすることは不可避と考えられてきた。しかるに本発明は、従来の加熱蒸散方式の問題点に鑑み、従来方式から離れた極めてユニークで、かつ蒸散性能や使用性、ならびに経済性をも備えた殺虫剤蒸散装置、及びこれを用いた殺虫剤蒸散方法を提供することを目的とする。
【0005】
【課題を解決するための手段および発明の実施の形態】
上記課題を解決するため、本発明者らは、有機PTC(正特性サーミスタ)発熱体自体に殺虫剤を混練させるという全く新規な方式を採用することによって、目的の殺虫剤蒸散装置、及びこれを用いた殺虫剤蒸散方法が得られることを知見し、本発明を完成した。
【0006】
すなわち請求項1の発明は、ポリオレフィン樹脂とカーボンとの混合物に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練して作成した有機PTC発熱体を装着してなる殺虫剤蒸散装置、また請求項2の発明は、シリコン樹脂に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練し、これをポリオレフィン樹脂とカーボンとの混合物に塗膜して作成した有機PTC発熱体を装着してなる殺虫剤蒸散装置に関するものである。
【0007】
本発明の殺虫剤蒸散装置は、特定の蒸気圧を有するピレスロイド殺虫剤を30〜150日間効力が持続するように有機PTC発熱体に練りこみ、使用終了後は有機PTC発熱体自体を使い捨てに構成したことに特徴を有する。
本発明で用いる有機PTC発熱体は、電気絶縁体であるポリオレフィン樹脂と導電体のカーボンを主原料とし、平常状態では、ポリオレフィン樹脂中に分散したカーボンが無数の導電パスを形成し低い抵抗を示すが、温度が徐々に上昇するにつれポリオレフィン樹脂の熱膨張によりカーボンの導電パスが切断されPTC特性を示すようになる。すなわち、過電流や過熱に対してヒューズのような役割を果たす。かかる特性は無機PTC発熱体では得られず、ピレスロイド殺虫剤の安定性の点からもこの蒸散システムは無機PTC発熱体に適用できない。
【0008】
特定のピレスロイド殺虫剤を含む有機PTC発熱体を作成するにあたっては、ポリオレフィン樹脂とカーボンとの混合物にピレスロイド殺虫剤を混練するか、又はシリコン樹脂にピレスロイド殺虫剤を混練し、これをポリオレフィン樹脂とカーボンとの混合物に塗膜して作成することができる。ポリオレフィン樹脂としては、ポリエチレン樹脂やポリプロピレン樹脂などがあるがポリエチレン樹脂が好ましく、これのカーボンとの混合比率やピレスロイド殺虫剤の配合量などは、用いるピレスロイド殺虫剤の蒸気圧や適用温度、殺虫効力の有効期間などを考慮して適宜決定される。
【0009】
本発明で用いる有機PTC発熱体は、上記部材にリード線を組み入れた後、通常、殺虫剤蒸散装置への装着手段を備えた通気性カートリッジに収納されて使用に供される。かかる蒸散システムは、別に殺虫剤担体を必要とせず、これ自体がヒューズ機能を備えているため、従来の殺虫剤蒸散装置に比べて構成が簡単で極めて有用なものである。
【0010】
本発明で用いるピレスロイド殺虫剤は、ポリオレフィン樹脂あるいはシリコン樹脂との相溶性、安定性、混練樹脂からの蒸散性などから、25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤に特定される。かかるピレスロイド殺虫剤としては、例えば、一般式(I)
【化1】

Figure 2004043360
(式中、X及びYは同一又は相異なって水素原子、メチル基、ハロゲン原子又はトリフルオロメチル基を表し、Zは水素原子、フッ素原子、メチル基、メトキシメチル基又はプロパルギル基を表す)で表されるフッ素置換ベンジルアルコールエステル化合物を例示することができる。
【0011】
一般式(I)で表される化合物の具体例としては、2,3,5,6−テトラフルオロベンジル−クリサンテマート(以後、化合物Aと称す)、2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(1−プロペニル)シクロプロパンカルボキシレート(以後、化合物Bと称す)、4−メチル−2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(2,2−ジクロロビニル)シクロプロパンカルボキシレート(以後、化合物Cと称す)、4−メチル−2,3,5,6−テトラフルオロベンジル−クリサンテマート(以後、化合物Dと称す)、4−メチル−2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(1−プロペニル)シクロプロパンカルボキシレート(以後、化合物Eと称す)、4−メチル−2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(2,2−ジフルオロビニル)シクロプロパンカルボキシレート(以後、化合物Fと称す)、4−メトキシメチル−2,3,5,6−テトラフルオロベンジル−クリサンテマート(以後、化合物Gと称す)、4−メトキシメチル−2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(1−プロペニル)シクロプロパンカルボキシレート(以後、化合物Hと称す)、2,3,4,5,6−ペンタフルオロベンジル−2,2−ジメチル−3−(2−クロロ−2−トリフルオロメチルビニル)シクロプロパンカルボキシレート(以後、化合物Iと称す)、又は4−プロパルギル−2,3,5,6−テトラフルオロベンジル−2,2−ジメチル−3−(1−プロペニル)シクロプロパンカルボキシレート(以後、化合物Jと称す)をあげることができる。これらの化合物は一種類を使用してもよいし、又は二種類以上の化合物を組み合わせて使用してもよい。なお、一般式(I)で表される化合物には、その不斉炭素や二重結合に基づく光学異性体や幾何異性体が存在するが、これらの各々やそれらの任意の混合物の使用も本発明に含まれるのは勿論である。
【0012】
ピレスロイド殺虫剤の配合量は、有機PTC発熱体1個あたり60mg以上で、1時間あたり殺虫剤を0.05〜1.0mg蒸散させるように調整するの適当である。有機PTC発熱体の製造にあたっては、その電気的性能や蒸散性能に支障をきたさない限りにおいて、必要ならば溶剤、界面活性剤、分散剤、安定剤、着色剤、離ケイ剤、帯電防止剤などを適宜配合してもよく、また、揮散性の高い他の殺虫、防虫、忌避成分(例えば、ヒノキチオール、カルボン、サフロール、シトロネロール、ケイ皮アルデヒドなどの防虫香料など)、殺ダニ剤、殺菌剤、消臭剤などを添加して多目的薬剤組成物とすることもできる。
【0013】
本発明の殺虫剤蒸散装置の形状、大きさは全く任意であり、カートリッジ状の有機PTC発熱体の外、これの受容部、交流電源スイッチ、通電ランプ、蒸散口、薬剤有効期間表示具、通気口などが適宜付設される。薬剤有効期間表示機能としては、例えば周波数検知ダイオードからの電源周波数の読み取りとこれに基づく加熱時間の積算を行うマイコンを備え液晶表示を制御する方式があるが、もちろんこの方式に限定されない。
【0014】
請求項3の発明は、請求項1又は2の殺虫剤蒸散装置において、ポリオレフィン樹脂としてポリエチレン樹脂を用いたものである。
【0015】
請求項4の発明は、ポリオレフィン樹脂とカーボンとの混合物に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練して作成した有機PTC発熱体を殺虫剤蒸散装置に装着し、交流電源に繋いで前記有機PTC発熱体を50〜110℃に加熱させ、前記ピレスロイド殺虫剤を蒸散させる殺虫剤蒸散方法に関するものである。
【0016】
請求項5の発明は、シリコン樹脂に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練し、これをポリオレフィン樹脂とカーボンとの混合物に塗膜して作成した有機PTC発熱体を殺虫剤蒸散装置に装着し、交流電源に繋いで前記有機PTC発熱体を50〜110℃に加熱させ、前記ピレスロイド殺虫剤を蒸散させる殺虫剤蒸散方法に関するものである。
【0017】
請求項6の発明は、請求項4又は5の殺虫剤蒸散方法において、ポリオレフィン樹脂としてポリエチレン樹脂を用いたものである。
【0018】
こうして得られた本発明の殺虫剤蒸散装置は、殺虫剤の蒸散性能にすぐれるのはもちろん、別に殺虫剤担体を必要とせず構成が簡単で、しかも有機PTC発熱体自体がヒューズ機能を有しているため電気的に安全であるというメリットを有する。従って、本発明は、蚊、ハエ、ゴキブリ、屋内塵性ダニ類などの衛生害虫や、蚋、ユスリカなどの害虫に対して極めて実用的、かつ有用な殺虫剤蒸散方法をも提供する。
【0019】
【実施例】
次に、具体的実施例ならびに試験例に基づいて、本発明の殺虫剤蒸散装置、及びこれを用いた殺虫剤蒸散方法を更に詳細に説明する。
【0020】
実施例1
図1は本実施例の殺虫剤蒸散装置1の側面断面図を示す。
融点が150℃のポリエチレン樹脂50部とカーボンブラック40部、及び化合物H(25℃における蒸気圧:1.9mPa)10部を加熱下に混練し、縦2.2cm、横3.5cmの大きさに成形した後、リード線を装着して有機PTC発熱体2(化合物Hを200mg含有)を調製した。これを通気性カートリッジ3に収納したものを、器具ケース4に装着して本発明の殺虫剤蒸散装置1を得た。なお、図中、5は電源スイッチ、6は電源コード、7は通電ランプ、8は蒸散口、9は薬剤有効期間液晶表示具、10はマイコン、11は通気口を示す。
この殺虫剤蒸散装置1を交流電源に接続すると有機PTC発熱体2は90℃に上昇して安定した。6畳の部屋で使用したところ、60日間にわたって蚊の被害を受けることがなく、また有機PTC発熱体2の取替え時期の表示も明瞭で使いやすかった。
【0021】
実施例2
シリコン樹脂80部に化合物C(25℃における蒸気圧:Ca.3.5mPa)20部を混練したものを、融点が130℃のポリエチレン樹脂60部とカーボンブラック40部からなり縦2.2cm、横3.5cmの大きさに成形された混合物に塗膜して有機PTC発熱体2(化合物Cを270mg含有)を調製した。
実施例1と同様にして殺虫剤蒸散装置1を作成し、交流電源に接続すると有機PTC発熱体2の発熱温度は80℃であった。8畳のリビングでの使用で、本殺虫剤蒸散装置は60日間十分な蚊防除効果を示した。
【0022】
試験例
実施例2に準じて表1に示す各種殺虫剤蒸散装置を作成し、その蚊に対する殺虫効力を評価した。なお、効力試験は、2×2×2mのチャンバーの中央に殺虫剤蒸散装置を置き、上方隅にセットした蚊(網カゴ入り、各20匹)に対するノックダウン効果を調べた。dl,d−T80−アレスリン40mgを含有する市販の1日用マットに比べて、優れるもの:○、同程度のもの:△、劣るもの:× で示した。
【0023】
【表1】
Figure 2004043360
【0024】
試験の結果、本発明の殺虫剤蒸散装置は、60日間にわたり蚊に対して高い殺虫効力を保持し、別に殺虫剤担体を必要とせず構成が簡単で使いやすかった。
これに対し、25℃における蒸気圧が1〜50mPaの範囲に該当しないシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を用いた比較例1及び比較例2や、有機PTC発熱体にポリエステル樹脂を用いた比較例3は、本蒸散システムに適合しなかった。また、比較例4のように発熱体の温度を50℃未満に設計すると殺虫効力が不足し、一方、比較例5の如く110℃を越えると有機PTC発熱体自体に成形上の問題が生じたが、有機PTCの特性で安全性に対する支障はなかった。
【0025】
【発明の効果】
本発明の殺虫剤蒸散装置は、殺虫剤の蒸散性能にすぐれるのはもちろん、別に殺虫剤担体を必要とせず構成が簡単で、しかも有機PTC発熱体自体がヒューズ機能を有しているため電気的に安全であるというメリットを有する。従って、本発明は、蚊、ハエ、ゴキブリ、屋内塵性ダニ類などの衛生害虫や、蚋、ユスリカなどの害虫に対して極めて実用的、かつ有用な殺虫剤蒸散方法をも提供する。
【図面の簡単な説明】
【図1】本発明の殺虫剤蒸散装置の一実施例の側面断面図を示す。
【符号の説明】
1:殺虫剤蒸散装置
2:有機PTC発熱体
3:カートリッジ
4:器具ケース
5:電源スイッチ
6:電源コード
7:通電ランプ
8:蒸散口
9:薬剤有効期間液晶表示具
10:マイコン
11:通気口[0001]
[Industrial application fields]
The present invention relates to an insecticide transpiration apparatus and an insecticide transpiration method using the same.
[0002]
[Prior art]
Conventionally, (1) mosquito coils, (2) electric mosquito mats, (3) liquid mosquito traps, etc. have been favorably used as methods for heat-pewing insecticide components for the purpose of insecticides. Among these, the electric mosquito-repellent mat is a fiber mat impregnated with an insecticidal component, placed on a heat sink having substantially the same shape as the mat of the heating transpiration device, and heated by energization to evaporate the insecticidal component. Therefore, the temperature of the central portion of the heat sink is set in the range of 140 to 180 ° C. The electric mosquito mat is an easy-to-use preparation, but since the entire bottom surface of the mat is heated by the heat sink, the volatilization amount of the insecticidal component decreases with time even if a volatilization regulator is added. On the other hand, in the case of a liquid mosquito trap that immerses the absorbent core in the chemical solution and heats the top of the core to evaporate the chemical solution, the temperature of the heating element is higher than that of the electric mosquito trap mat because of the configuration in which the upper portion of the core is indirectly heated. Slightly lower. This method is convenient because the effect lasts for 30 to 90 days just by attaching a chemical bottle once, but the risk of liquid leakage is unavoidable.
[0003]
The development of a preparation that incorporates the advantages of the electric mosquito mat mat method and that maintains the effect for a long period of time has been attempted. For example, JP-A-5-194103 and JP-A-6-192007 disclose a thermoplastic resin powder and There is disclosed a drug-containing body for heat evaporation obtained by heating a mixture comprising an inorganic powder and / or an organic powder to the vicinity of the melting point of a thermoplastic resin powder. Although it is described that the heating temperature can be lowered by using a carrier having good thermal conductivity, it is difficult to obtain stable transpiration performance over a long period of time.
[0004]
[Problems to be solved by the invention]
All conventional insecticide transpiration devices are equipped with a carrier such as a mat or bottle containing an insecticide to a device with a fixed heating element to try to evaporate the insecticide from the carrier containing the insecticide. It has been considered inevitable to use two parts of the insecticide carrier. However, in view of the problems of the conventional heat transpiration system, the present invention is an insecticide transpiration apparatus that is very unique and has transpiration performance, usability, and economy, and an insecticide using the same. An object is to provide a method for evaporating the agent.
[0005]
Means for Solving the Problem and Embodiment of the Invention
In order to solve the above-mentioned problems, the present inventors have adopted a completely new method in which an organic PTC (positive temperature coefficient thermistor) heating element itself is kneaded with an insecticide, thereby providing a target insecticide evaporation apparatus and The present invention was completed by finding out that the insecticide transpiration method used was obtained.
[0006]
That is, the invention of claim 1 is formed by mounting an organic PTC heating element prepared by kneading a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a mixture of polyolefin resin and carbon. In the insecticide transpiration apparatus, and in the invention of claim 2, a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. is kneaded with a silicone resin, and this is applied to a mixture of polyolefin resin and carbon. The present invention relates to an insecticide transpiration apparatus to which an organic PTC heating element prepared by film formation is attached.
[0007]
The insecticide transpiration apparatus of the present invention incorporates a pyrethroid insecticide having a specific vapor pressure into an organic PTC heating element so that the effect lasts for 30 to 150 days, and the organic PTC heating element itself is configured to be disposable after use. It has the characteristics.
The organic PTC heating element used in the present invention is mainly composed of a polyolefin resin, which is an electrical insulator, and carbon of a conductor, and in a normal state, carbon dispersed in the polyolefin resin forms an infinite number of conductive paths and exhibits low resistance. However, as the temperature gradually rises, the conductive path of carbon is cut by the thermal expansion of the polyolefin resin and exhibits PTC characteristics. That is, it acts like a fuse against overcurrent and overheating. Such characteristics cannot be obtained with an inorganic PTC heating element, and this transpiration system cannot be applied to an inorganic PTC heating element in view of the stability of a pyrethroid insecticide.
[0008]
In preparing an organic PTC heating element containing a specific pyrethroid insecticide, a pyrethroid insecticide is kneaded into a mixture of a polyolefin resin and carbon, or a pyrethroid insecticide is kneaded into a silicon resin, and the polyolefin resin and carbon are mixed. It can be prepared by coating the mixture with Polyolefin resins include polyethylene resins and polypropylene resins, but polyethylene resins are preferred. The mixing ratio of these resins with carbon and the amount of pyrethroid insecticide are determined by the vapor pressure, application temperature, and insecticidal efficacy of the pyrethroid insecticide used. It is determined as appropriate in consideration of the validity period.
[0009]
The organic PTC heating element used in the present invention is usually used after being assembled with a lead wire in the above member and then housed in a breathable cartridge having means for attaching to an insecticide evaporation device. Such a transpiration system does not require a separate insecticide carrier, and itself has a fuse function. Therefore, the transpiration system has a simple structure and is extremely useful compared to a conventional insecticide transpiration apparatus.
[0010]
The pyrethroid insecticide used in the present invention is a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. in view of compatibility with a polyolefin resin or silicone resin, stability, transpiration from a kneaded resin, and the like. Specified. Examples of such pyrethroid insecticide include, for example, the general formula (I)
[Chemical 1]
Figure 2004043360
(Wherein X and Y are the same or different and each represents a hydrogen atom, a methyl group, a halogen atom or a trifluoromethyl group, and Z represents a hydrogen atom, a fluorine atom, a methyl group, a methoxymethyl group or a propargyl group). The fluorine-substituted benzyl alcohol ester compound represented can be illustrated.
[0011]
Specific examples of the compound represented by the general formula (I) include 2,3,5,6-tetrafluorobenzyl-chrysanthemate (hereinafter referred to as Compound A), 2,3,5,6-tetrafluoro. Benzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as Compound B), 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl- 3- (2,2-dichlorovinyl) cyclopropanecarboxylate (hereinafter referred to as Compound C), 4-methyl-2,3,5,6-tetrafluorobenzyl-chrysanthemate (hereinafter referred to as Compound D) 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as compound E), 4- Til-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (2,2-difluorovinyl) cyclopropanecarboxylate (hereinafter referred to as compound F), 4-methoxymethyl-2, 3,5,6-tetrafluorobenzyl-chrysanthemate (hereinafter referred to as Compound G), 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1- Propenyl) cyclopropanecarboxylate (hereinafter referred to as Compound H), 2,3,4,5,6-pentafluorobenzyl-2,2-dimethyl-3- (2-chloro-2-trifluoromethylvinyl) cyclo Propanecarboxylate (hereinafter referred to as Compound I) or 4-propargyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1 Propenyl) cyclopropanecarboxylate (hereinafter referred to as Compound J) can be mentioned. One kind of these compounds may be used, or two or more kinds of compounds may be used in combination. In addition, the compound represented by the general formula (I) has optical isomers and geometric isomers based on the asymmetric carbon and double bond, and the use of each of these and any mixture thereof is also present. Of course, it is included in the invention.
[0012]
The blending amount of the pyrethroid insecticide is appropriately adjusted so as to evaporate 0.05 to 1.0 mg of the insecticide per hour at 60 mg or more per organic PTC heating element. In the production of organic PTC heating elements, as long as the electrical performance and transpiration performance are not hindered, if necessary, solvents, surfactants, dispersants, stabilizers, colorants, silicifying agents, antistatic agents, etc. In addition, other insecticides, insecticides and repellent components (for example, insecticides such as hinokitiol, carvone, safrole, citronellol, cinnamic aldehyde, etc.), acaricides, fungicides, Deodorizing agents and the like can be added to make a multipurpose pharmaceutical composition.
[0013]
The shape and size of the insecticide transpiration apparatus of the present invention are completely arbitrary. In addition to the organic PTC heating element in the form of a cartridge, the receiving part thereof, an AC power switch, an energizing lamp, a transpiration port, a drug effective period indicator, a ventilation A mouth or the like is appropriately attached. As a medicine effective period display function, for example, there is a method of controlling a liquid crystal display by including a microcomputer that reads a power supply frequency from a frequency detection diode and integrates a heating time based on the power supply frequency, but is not limited to this method.
[0014]
The invention of claim 3 is the insecticide transpiration apparatus of claim 1 or 2, wherein a polyethylene resin is used as the polyolefin resin.
[0015]
According to the invention of claim 4, an organic PTC heating element prepared by kneading a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a mixture of polyolefin resin and carbon is used as an insecticide evaporation device. The present invention relates to an insecticide transpiration method in which the organic PTC heating element is attached to an AC power source and heated to 50 to 110 ° C. to evaporate the pyrethroid insecticide.
[0016]
The invention of claim 5 is an organic material prepared by kneading a cyclopropanecarboxylic acid ester-based pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a silicone resin, and coating this on a mixture of polyolefin resin and carbon. The present invention relates to an insecticide evaporation method in which a PTC heating element is attached to an insecticide evaporation device, connected to an AC power source, the organic PTC heating element is heated to 50 to 110 ° C., and the pyrethroid insecticide is evaporated.
[0017]
The invention of claim 6 uses the polyethylene resin as the polyolefin resin in the insecticide transpiration method of claim 4 or 5.
[0018]
The insecticide evaporation device of the present invention thus obtained is not only excellent in insecticide evaporation performance, but also does not require a separate insecticide carrier, has a simple structure, and the organic PTC heating element itself has a fuse function. Therefore, it has the merit of being electrically safe. Therefore, the present invention also provides an insecticide transpiration method that is extremely practical and useful for sanitary pests such as mosquitoes, flies, cockroaches, indoor dust mites, and insects such as moths and chironomids.
[0019]
【Example】
Next, the insecticide transpiration apparatus of the present invention and the insecticide transpiration method using the same will be described in more detail based on specific examples and test examples.
[0020]
Example 1
FIG. 1 shows a side sectional view of an insecticide transpiration apparatus 1 of this embodiment.
50 parts of a polyethylene resin having a melting point of 150 ° C., 40 parts of carbon black, and 10 parts of compound H (vapor pressure at 25 ° C .: 1.9 mPa) are kneaded under heating, and are 2.2 cm long and 3.5 cm wide. Then, lead wires were attached to prepare an organic PTC heating element 2 (containing 200 mg of compound H). What was accommodated in the air-permeable cartridge 3 was attached to the instrument case 4 to obtain the insecticide evaporation apparatus 1 of the present invention. In the figure, 5 is a power switch, 6 is a power cord, 7 is an energizing lamp, 8 is a transpiration port, 9 is a drug effective period liquid crystal display, 10 is a microcomputer, and 11 is a vent.
When the insecticide transpiration apparatus 1 was connected to an AC power source, the organic PTC heating element 2 rose to 90 ° C. and became stable. When used in a 6 tatami room, mosquitoes were not damaged for 60 days, and the indication of the replacement time of the organic PTC heating element 2 was clear and easy to use.
[0021]
Example 2
A mixture of 20 parts of compound C (vapor pressure at 25 ° C .: Ca. 3.5 mPa) mixed with 80 parts of silicone resin, consisting of 60 parts of polyethylene resin having a melting point of 130 ° C. and 40 parts of carbon black, 2.2 cm in length, An organic PTC heating element 2 (comprising 270 mg of compound C) was prepared by coating a mixture formed in a size of 3.5 cm.
When the insecticide transpiration apparatus 1 was prepared in the same manner as in Example 1 and connected to an AC power source, the exothermic temperature of the organic PTC heating element 2 was 80 ° C. When used in an 8 tatami living room, this insecticide transpiration device showed a sufficient mosquito control effect for 60 days.
[0022]
Test Examples Various insecticide transpiration devices shown in Table 1 were prepared according to Example 2, and the insecticidal efficacy against the mosquitoes was evaluated. In the efficacy test, an insecticide evaporation device was placed in the center of a 2 × 2 × 2 m chamber, and the knockdown effect on mosquitoes (with net cages, 20 each) set in the upper corner was examined. Compared to a commercially available daily mat containing 40 mg of dl, d-T80-allesulin, it was shown as excellent: ◯, comparable: Δ, inferior: ×.
[0023]
[Table 1]
Figure 2004043360
[0024]
As a result of the test, the insecticide transpiration apparatus of the present invention retained high insecticidal efficacy against mosquitoes for 60 days, and did not require a separate insecticide carrier and was simple in configuration and easy to use.
In contrast, Comparative Example 1 and Comparative Example 2 using a cyclopropanecarboxylic acid ester pyrethroid insecticide whose vapor pressure at 25 ° C. does not fall within the range of 1 to 50 mPa, and comparison using a polyester resin for the organic PTC heating element Example 3 did not fit this transpiration system. Further, when the temperature of the heating element is designed to be lower than 50 ° C. as in Comparative Example 4, the insecticidal effect is insufficient, whereas when it exceeds 110 ° C. as in Comparative Example 5, a problem in molding occurs in the organic PTC heating element itself. However, there was no problem in safety due to the characteristics of organic PTC.
[0025]
【The invention's effect】
The pesticide transpiration apparatus of the present invention is not only excellent in the transpiration performance of the pesticide, but also does not require a separate pesticide carrier, has a simple structure, and the organic PTC heating element itself has a fuse function. Has the merit of being safe. Therefore, the present invention also provides an insecticide transpiration method that is extremely practical and useful for sanitary pests such as mosquitoes, flies, cockroaches, indoor dust mites, and insects such as moths and chironomids.
[Brief description of the drawings]
FIG. 1 shows a side cross-sectional view of one embodiment of an insecticide transpiration apparatus of the present invention.
[Explanation of symbols]
1: Insecticide transpiration device 2: Organic PTC heating element 3: Cartridge 4: Instrument case 5: Power switch 6: Power cord 7: Power supply lamp 8: Transpiration port 9: Drug effective period Liquid crystal display 10: Microcomputer 11: Vent

Claims (6)

ポリオレフィン樹脂とカーボンとの混合物に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練して作成した有機PTC発熱体を装着してなることを特徴とする殺虫剤蒸散装置。Insecticide transpiration characterized by comprising an organic PTC heating element prepared by kneading a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a mixture of polyolefin resin and carbon apparatus. シリコン樹脂に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練し、これをポリオレフィン樹脂とカーボンとの混合物に塗膜して作成した有機PTC発熱体を装着してなることを特徴とする殺虫剤蒸散装置。An organic PTC heating element prepared by kneading a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a silicone resin and coating it with a mixture of polyolefin resin and carbon An insecticide transpiration device, characterized in that ポリオレフィン樹脂がポリエチレン樹脂であることを特徴とする請求項1又は2に記載の殺虫剤蒸散装置。The insecticide transpiration apparatus according to claim 1 or 2, wherein the polyolefin resin is a polyethylene resin. ポリオレフィン樹脂とカーボンとの混合物に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練して作成した有機PTC発熱体を殺虫剤蒸散装置に装着し、交流電源に繋いで前記有機PTC発熱体を50〜110℃に加熱させ、前記ピレスロイド殺虫剤を蒸散させることを特徴とする殺虫剤蒸散方法。An organic PTC heating element prepared by kneading a mixture of polyolefin resin and carbon with a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. is attached to an insecticide evaporation device and connected to an AC power source. And heating the organic PTC heating element to 50 to 110 ° C. to evaporate the pyrethroid insecticide. シリコン樹脂に25℃における蒸気圧が1〜50mPaのシクロプロパンカルボン酸エステル系ピレスロイド殺虫剤を混練し、これをポリオレフィン樹脂とカーボンとの混合物に塗膜して作成した有機PTC発熱体を殺虫剤蒸散装置に装着し、交流電源に繋いで前記有機PTC発熱体を50〜110℃に加熱させ、前記ピレスロイド殺虫剤を蒸散させることを特徴とする殺虫剤蒸散方法。An organic PTC heating element prepared by kneading a cyclopropanecarboxylic acid ester pyrethroid insecticide having a vapor pressure of 1 to 50 mPa at 25 ° C. with a silicone resin and coating it on a mixture of polyolefin resin and carbon. An insecticide transpiration method which is mounted on an apparatus and connected to an AC power source to heat the organic PTC heating element to 50 to 110 ° C. to evaporate the pyrethroid insecticide. ポリオレフィン樹脂がポリエチレン樹脂であることを特徴とする請求項4又は5に記載の殺虫剤蒸散方法。6. The insecticide transpiration method according to claim 4 or 5, wherein the polyolefin resin is a polyethylene resin.
JP2002202851A 2002-07-11 2002-07-11 Insecticide transpiration device and method for transpiring insecticide by using the same Pending JP2004043360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002202851A JP2004043360A (en) 2002-07-11 2002-07-11 Insecticide transpiration device and method for transpiring insecticide by using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002202851A JP2004043360A (en) 2002-07-11 2002-07-11 Insecticide transpiration device and method for transpiring insecticide by using the same

Publications (1)

Publication Number Publication Date
JP2004043360A true JP2004043360A (en) 2004-02-12

Family

ID=31708925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002202851A Pending JP2004043360A (en) 2002-07-11 2002-07-11 Insecticide transpiration device and method for transpiring insecticide by using the same

Country Status (1)

Country Link
JP (1) JP2004043360A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012005355A (en) * 2010-06-22 2012-01-12 Dainippon Jochugiku Co Ltd Apparatus for chemical volatilization
CN109808213A (en) * 2018-12-18 2019-05-28 芜湖恒美电热器具有限公司 Automatic flattening press before the single tube that generates heat solidifies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012005355A (en) * 2010-06-22 2012-01-12 Dainippon Jochugiku Co Ltd Apparatus for chemical volatilization
CN109808213A (en) * 2018-12-18 2019-05-28 芜湖恒美电热器具有限公司 Automatic flattening press before the single tube that generates heat solidifies

Similar Documents

Publication Publication Date Title
JP3479727B2 (en) Battery-operated insecticide evaporation device and insecticide evaporation method
US7544332B2 (en) Air treatment dispensers delivering multiple chemicals
CA2487267C (en) Localized surface volatilization
JP2003525598A (en) Chip containing activator and integrated heating element
JP2009525394A (en) Air treatment device with a single-use indicator
US6925252B2 (en) Electric heating fumigator
JP2003512813A (en) Equipment for volatilizing volatile substances
KR100813783B1 (en) Insecticide transpiration apparatus
JP2004043360A (en) Insecticide transpiration device and method for transpiring insecticide by using the same
JP2001316212A (en) Method for thermal transpiring to kill insect
JP2926172B2 (en) Heat evaporation device and heat evaporation insecticidal method
JP2007117086A (en) Thermal evaporation device
JP4247417B2 (en) Insecticidal mat volatilization persistence agent, and insecticidal mat for a long time containing the volatilization persistence agent together with the insecticidal component
JP3783190B2 (en) Battery-powered insecticide transpiration device and insecticide transpiration method
JPH09285247A (en) Thermal transpiration device and thermal transpiration of chemical agent with the device
US20020192123A1 (en) Heat-regulating container for atmosphere conditioning systems
JPS6322841B2 (en)
JP2002017230A (en) Apparatus for volatilizing chemical
JP3220695B2 (en) Battery-operated insecticide evaporation device and insecticide evaporation method
JP2005145823A (en) Transpiration method for insecticide
JPH10194904A (en) Insecticidal mat for long time and thermal vaporization insecticidal method using the same
JP2003081707A (en) Insecticidal mat for long time and method for thermal volatilizing insecticidal method using the same
JP2022136060A (en) Heat-transpiration device, and agent transpiration method
JP3015831B2 (en) Heat transpiration insect killing method
JP2002212005A (en) Mat for heat-evaporation