JP2013056423A - Resin coated steel sheet that has insecticidal action and structure that uses the same - Google Patents

Resin coated steel sheet that has insecticidal action and structure that uses the same Download PDF

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JP2013056423A
JP2013056423A JP2011194525A JP2011194525A JP2013056423A JP 2013056423 A JP2013056423 A JP 2013056423A JP 2011194525 A JP2011194525 A JP 2011194525A JP 2011194525 A JP2011194525 A JP 2011194525A JP 2013056423 A JP2013056423 A JP 2013056423A
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resin
steel sheet
resin layer
coated steel
insect
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JP5832830B2 (en
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Koji Kobayashi
康二 小林
Keiko Yoshida
恵子 吉田
Akihiko Furuta
彰彦 古田
Sei Kusuoka
盛 楠岡
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JFE Galvanizing and Coating Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a resin coated steel sheet that has an insecticidal action, and a structure using the same.SOLUTION: The resin coated steel sheet has, at least on one surface of the steel sheet, a resin layer that comprises the resin composition that contains the pyrethroid system compound by 5-40%, the urethane resin by 50-90%, the epoxy resin by 3-10%, and the corrosion inhibitor by 0.5-2% in terms of the mass%. Then the average film thickness of the resin layer is assumed to be 0.1-5 μm. Also the resin layer can be the resin composition that contains the pyrethroid system compound by 5-40%, and the heat curing mold acrylic resin by 60-95% in terms of the mass%. In this case, it is desirable to cure the resin layer assuming the best achievement board temperature as 160°C or less. Such a resin coated steel sheet can be made a structure insecticidal to the insect of the termite etc., by processing it installable on the route of entry of the insect.

Description

本発明は、人に不快感を抱かせる昆虫(不快害虫)、衛生上、害を及ぼす昆虫(衛生害虫)、あるいは建築物の木材に害を及ぼす昆虫等の殺虫作用を有する樹脂被覆鋼板に関する。   The present invention relates to a resin-coated steel sheet having an insecticidal action, such as insects that make people feel uncomfortable (unpleasant pests), insects that are harmful to hygiene (hygienic pests), or insects that are harmful to wood in buildings.

家電製品、自動車部品、建築部材等では、意匠性や、さらには防錆性、耐食性、耐熱性等の向上を目的として、予め表面に塗装を施した塗装鋼板が使用されるようになっている。近年、家電製品等では、機器内で発生する熱に誘引されて、機器内にゴキブリをはじめとする昆虫(害虫)が侵入して、様々な被害を発生させる場合が多い。例えば、機器内に侵入した昆虫が、機器内のプリント回路基板上での絶縁不調や導通不良を発生させる場合がある。このような被害を防ぐために、例えば特許文献1には、プリント回路基板に昆虫の忌避剤を塗布等して昆虫の侵入防止を図るプレコート鋼板が提案されている。しかし、このような方法では、忌避剤を充分な量とすることができず、また昆虫が基板に接触することが避けられず、昆虫の忌避という効果を充分に期待できないという問題があった。   In home appliances, automobile parts, building materials, etc., coated steel sheets whose surfaces have been coated in advance have been used for the purpose of improving design properties and further rust prevention, corrosion resistance, heat resistance, etc. . In recent years, home appliances and the like are often attracted by heat generated in devices, and insects such as cockroaches (pests) invade the devices and cause various damages. For example, an insect that has entered the device may cause an insulation failure or poor conduction on a printed circuit board in the device. In order to prevent such damage, for example, Patent Document 1 proposes a precoated steel sheet that prevents insects from entering by applying an insect repellent to a printed circuit board. However, in such a method, there is a problem that the repellent cannot be made in a sufficient amount, and that the insect cannot avoid contact with the substrate, and the effect of repelling the insect cannot be sufficiently expected.

このような問題に対し、例えば、特許文献2には、25℃条件下における蒸気圧が1×10−3Pa以下であるピレスロイド系害虫定住防止成分と、あるいはさらに害虫定住防止成分の溶出助剤として多価アルコ−ルの脂肪酸エステルとを含有する金属塗装用塗料で塗装された害虫定住性防止プレコート鋼板が記載されている。特許文献1に記載された、ピレスロイド系害虫定住防止成分と多価アルコールの脂肪酸エステルとの混合比は、ピレスロイド系害虫定住防止成分:多価アルコールの脂肪酸エステルの比で、1:1〜1:10とすることが好ましく、より好ましくは1:1〜1:5であるとしている。特許文献2に記載された技術によれば、強固な塗膜からも害虫の定住防止効果が発揮しやすいうえ、その効果が良好に維持されるとしている。 For such a problem, for example, Patent Document 2 discloses an elution aid for a pyrethroid-based insect pest settlement component having a vapor pressure of 1 × 10 −3 Pa or less at 25 ° C., or a pest settlement component. As described above, a pre-coated steel sheet for preventing insect pest control coated with a coating material for metal coating containing a fatty acid ester of a polyhydric alcohol is described. The mixing ratio of the pyrethroid-based pest settlement component and the fatty acid ester of polyhydric alcohol described in Patent Document 1 is a ratio of pyrethroid-based pest settlement component: polyhydric alcohol fatty acid ester, 1: 1 to 1: 10 is preferable, and 1: 1 to 1: 5 is more preferable. According to the technique described in Patent Document 2, the effect of preventing the settlement of insects from a strong coating film is easily exhibited, and the effect is well maintained.

また、特許文献3には、鋼板の表面に、潤滑剤と、忌避材とを含有する樹脂組成物からなる潤滑被膜層を有する防虫鋼板が記載されている。そして、忌避材としては、ピレスロイド系化合物を主成分とする昆虫忌避成分と、沸点が250℃以上である多価アルコールの脂肪酸エステルとの混合物が好ましいとし、その混合比は、質量比で昆虫忌避成分:多価アルコールの脂肪酸エステルの比で、10:1〜1:10、好ましくは1:1〜1:5であるとしている。特許文献3に記載された技術によれば、プレス成形時にとくに潤滑剤を使用することなくプレス加工が可能で、さらに溶接性も高く、ゴギブリ等の昆虫を寄せ付けない防虫性に優れるとしている。   Patent Document 3 describes an insect-proof steel plate having a lubricating coating layer made of a resin composition containing a lubricant and a repellent material on the surface of the steel plate. As the repellent material, a mixture of an insect repellent component mainly composed of a pyrethroid compound and a fatty acid ester of a polyhydric alcohol having a boiling point of 250 ° C. or more is preferable, and the mixing ratio is an insect repellent in mass ratio. The ratio of component: fatty acid ester of polyhydric alcohol is 10: 1 to 1:10, preferably 1: 1 to 1: 5. According to the technique described in Patent Document 3, it is possible to perform press processing without using a lubricant during press molding, and also has high weldability and excellent insect repellent properties that keep insects such as goggles away.

しかし、特許文献2、特許文献3に記載された技術では、ピレスロイド系害虫定住防止成分に対する多価アルコールの脂肪酸エステルの含有比率が高くなると、早期に有効成分が溶出し、忌避効果の持続性が低下するという問題があった。
このような問題に対し、例えば、特許文献4には、少なくとも片方の表面に樹脂被膜を有し、昆虫忌避性を有する樹脂被覆金属板が記載されている。特許文献4に記載された技術では、樹脂被膜がピレスロイド系化合物と多価アルコールの脂肪酸エステルとを含有する樹脂組成物からなり、該樹脂組成物中のピレスロイド系化合物に対する多価アルコールの脂肪酸エステルの割合を質量比で0.2〜1とし、ピレスロイド系化合物と多価アルコールの脂肪酸エステルとの合計が樹脂成分100重量部に対し5〜50重量部で、樹脂被膜の付着量を片面当たり0.2〜5g/mとしている。これにより、昆虫忌避効果が10年程度以上の長期間持続するとしている。
However, in the techniques described in Patent Document 2 and Patent Document 3, when the content ratio of the fatty acid ester of the polyhydric alcohol to the pyrethroid-based insect pest control component increases, the active ingredient is eluted at an early stage, and the persistence of the repellent effect is increased. There was a problem of lowering.
To deal with such a problem, for example, Patent Document 4 describes a resin-coated metal plate having a resin coating on at least one surface and having insect repellent properties. In the technique described in Patent Document 4, the resin film comprises a resin composition containing a pyrethroid compound and a fatty acid ester of a polyhydric alcohol, and the fatty acid ester of the polyhydric alcohol with respect to the pyrethroid compound in the resin composition. The ratio is 0.2 to 1 by mass ratio, the total of the pyrethroid compound and the fatty acid ester of polyhydric alcohol is 5 to 50 parts by weight with respect to 100 parts by weight of the resin component, and the adhesion amount of the resin film is 0.2 to 5 g / side. It is set to m 2. As a result, the insect repellent effect is said to last for about 10 years or longer.

また、特許文献5、特許文献6、特許文献7には、加工性、溶接性、あるいはさらに耐食性と、昆虫忌避性を兼備した防虫鋼板が記載されている。特許文献5,6,7に記載された技術では、昆虫忌避性を確保するために、少なくともピレスロイド系化合物を主成分とする昆虫忌避成分の少なくとも1種と、沸点が250℃以上である多価アルコールの脂肪酸エステルの少なくとも1種の混合物である忌避剤を含有する樹脂組成物からなる樹脂被覆層を鋼板表面に付着させている。特許文献5,6,7に記載された技術によれば、ゴギブリ等の昆虫を寄せ付けない優れた昆虫忌避性を有する防虫鋼板を安定して製造できるとしている。   Patent Document 5, Patent Document 6, and Patent Document 7 describe insect-proof steel plates that have both workability, weldability, and further corrosion resistance and insect repellent properties. In the techniques described in Patent Documents 5, 6 and 7, in order to ensure insect repellency, at least one insect repellant component mainly composed of a pyrethroid compound and a polyvalent having a boiling point of 250 ° C. or higher. A resin coating layer made of a resin composition containing a repellent that is a mixture of at least one fatty acid ester of alcohol is adhered to the steel sheet surface. According to the techniques described in Patent Documents 5, 6, and 7, it is said that an insect-resisting steel plate having excellent insect repellent properties that keep insects such as gougris against can be stably manufactured.

特開平11−300884号公報Japanese Patent Laid-Open No. 11-300884 特開2006−212865号公報JP 2006-212865 JP 特開2006−231690号公報JP 2006-231690 A 特開2010−158801号公報JP 2010-158801 A 特開2009−114169号公報JP 2009-114169 A 特開2009−113464号公報JP 2009-113464 A 特開2009−114168号公報JP 2009-114168

特許文献4〜7に記載された技術では、ゴギブリ等の昆虫を寄せ付けない昆虫忌避性を保持させることを目的としており、ゴギブリ等を殺虫するまでは意図していない。またさらに、特許文献4〜7には、ゴギブリ等の昆虫についての記載はあるが、建築物の内部に侵入して、建築物の木材に害を及ぼす白アリについてまでの言及はない。
従来から、白アリの建築物への侵入を防止するために、防蟻剤の塗布や、防蟻マット等の設置を行っていた。しかし、それらの効果は、長期間を経るにしたがい薄れるため、所定期間ごとに、防蟻剤の再塗布や防蟻マットの交換を行う工事を必要とするという問題を残していた。
The techniques described in Patent Documents 4 to 7 are intended to maintain insect repellency that does not attract insects such as gougly, and are not intended until the insects are killed. Furthermore, although Patent Documents 4 to 7 have descriptions of insects such as Goghibli, there is no mention of white ants that invade the interior of a building and cause harm to the wood of the building.
Conventionally, in order to prevent the invasion of white ants into buildings, the application of ant-proofing agents and the installation of ant-proofing mats have been performed. However, since these effects diminish over a long period of time, there remains a problem in that a work for re-application of an anti-fungal agent or replacement of an anti-rust mat is required every predetermined period.

本発明は、かかる従来技術の問題を解決し、加工性、耐食性を損なうことなく、白アリ等の有害昆虫を殺虫できる、優れた殺虫作用を有する樹脂被覆鋼板、および、該樹脂被覆鋼板を加工してなり、白アリを駆除でき、白アリの建築物への侵入の防止を可能とする、構造体を提案することを目的とする。   The present invention solves such problems of the prior art, can kill harmful insects such as white ants without impairing processability and corrosion resistance, and has excellent insecticidal action, and processes the resin-coated steel sheet Therefore, an object of the present invention is to propose a structure that can be used to eliminate white ants and prevent white ants from entering the building.

本発明者らは、白アリによる建築物の被害を防止するには、単に昆虫を寄せ付けない昆虫忌避性のみではなく、とくに建築物に害を及ぼす白アリを駆除できる殺虫作用までを具備する鋼板製の構造体を建築物に設置することが肝要となることに想到した。
そこで、本発明者らは、構造体の素材となる鋼板を、昆虫忌避性に加えて、とくに白アリ等を駆除できる殺虫作用を具備する樹脂被覆鋼板とすることに思い至り、樹脂被覆鋼板に殺虫作用を具備させる方策について鋭意研究した。その結果、ピレスロイド系化合物が、昆虫忌避性に加えて、白アリに対する殺虫作用を有することを見出し、鋼板表面に、ピレスロイド系化合物を所定量(5〜40質量%)含有する樹脂組成物からなる樹脂被覆層を形成し、しかもその膜厚を特定厚さ(0.1〜5μm)とすることにより、とくに白アリに対する殺虫作用を強く具備する樹脂被覆鋼板が得られることを知見した。
In order to prevent damage to buildings due to white ants, the present inventors have not only insect repellency that does not attract insects, but also steel plates that have an insecticidal action that can particularly eliminate white ants that cause damage to buildings. I came up with the idea that it would be important to install the steel structure in the building.
Therefore, the present inventors have come up with the idea that the steel sheet used as the material of the structure is a resin-coated steel sheet having an insecticidal action capable of exterminating white ants in addition to insect repellency. We have eagerly studied how to provide insecticidal action. As a result, the pyrethroid compound is found to have insecticidal action against white ants in addition to insect repellency, and comprises a resin composition containing a predetermined amount (5 to 40% by mass) of a pyrethroid compound on the steel plate surface. It was found that a resin-coated steel sheet having a strong insecticidal action against white ants can be obtained by forming a resin coating layer and setting the film thickness to a specific thickness (0.1 to 5 μm).

さらに、本発明者らの検討によれば、成型加工の観点から、ピレスロイド系化合物を含む樹脂被覆層は、未塗装鋼板への塗布用として、樹脂と、腐食抑制剤、あるいはさらに潤滑剤を含む水溶性前処理剤を用いて形成することが好ましいことを知見した。なお、塗装鋼板への塗布用として、水溶性前処理剤に代えて、熱硬化型アクリル樹脂を用いたピレスロイド系化合物を含む樹脂層としても同様に白アリに対する殺虫作用を有する樹脂層を形成できることを知見した。   Further, according to the study by the present inventors, from the viewpoint of molding processing, the resin coating layer containing a pyrethroid compound contains a resin and a corrosion inhibitor or further a lubricant for application to an unpainted steel sheet. It has been found that it is preferable to use a water-soluble pretreatment agent. It should be noted that a resin layer having an insecticidal action against white ants can be similarly formed as a resin layer containing a pyrethroid compound using a thermosetting acrylic resin instead of a water-soluble pretreatment agent for application to a coated steel plate. I found out.

本発明は、かかる知見に基づき、さらに検討を加えて完成されたものである。すなわち、本発明の要旨はつぎのとおりである。
(1)鋼板の少なくとも片方の表面に樹脂層を有する樹脂被覆鋼板であって、前記樹脂層の平均膜厚を0.1〜5μmとし、該樹脂層を、質量%で、ピレスロイド系化合物を5〜40%、ウレタン樹脂を50〜90%、エポキシ樹脂を3〜10%、腐食抑制剤を0.5〜2%、含有する樹脂組成物からなる樹脂層することを特徴とする殺虫作用を有する樹脂被覆鋼板。
The present invention has been completed based on such findings and further studies. That is, the gist of the present invention is as follows.
(1) A resin-coated steel sheet having a resin layer on at least one surface of a steel sheet, wherein the resin layer has an average film thickness of 0.1 to 5 μm, the resin layer is contained in mass%, and a pyrethroid compound is 5 to 40 %, Urethane resin 50 to 90%, epoxy resin 3 to 10%, corrosion inhibitor 0.5 to 2%, and a resin layer comprising a resin composition containing an insecticidal action.

(2)(1)において、前記樹脂層を、質量%で、ピレスロイド系化合物を5〜40%、熱硬化型アクリル樹脂を60〜95%を含有する樹脂組成物からなり、最高到達板温を160℃以下として硬化させた樹脂層とすることを特徴とする樹脂被覆鋼板。
(3)(1)または(2)に記載の樹脂被覆鋼板を用いて、昆虫の侵入経路に設置可能に加工された殺虫用構造体。
(2) In (1), the resin layer is composed of a resin composition containing, by mass%, 5 to 40% of a pyrethroid compound and 60 to 95% of a thermosetting acrylic resin, A resin-coated steel sheet, which is a resin layer cured at 160 ° C. or lower.
(3) An insecticidal structure processed so as to be installable in an insect intrusion route using the resin-coated steel sheet according to (1) or (2).

本発明によれば、鋼板の加工性、耐食性を損なうことなく、優れた、白アリ等昆虫の殺虫作用を有する樹脂被覆鋼板を製造でき、産業上格段の効果を奏する。また、本発明になる構造体を、木造建築物に適用することにより、白アリによる木材の被害を著しく軽減できるという効果もある。   ADVANTAGE OF THE INVENTION According to this invention, the resin-coated steel plate which has the insecticidal action of insects, such as a white ant, can be manufactured without impairing the workability and corrosion resistance of a steel plate, and there exists a remarkable industrial effect. In addition, by applying the structure according to the present invention to a wooden building, there is also an effect that damage of wood caused by white ants can be remarkably reduced.

実施例で使用した構造体の形状の一例を模式的に示す説明図である。(a)は上部下部ともに折返しのあるもの、(b)は上部のみに折返しのあるもの、(c)折返しのないもの、である。It is explanatory drawing which shows typically an example of the shape of the structure used in the Example. (A) is a case where the upper part and the lower part are folded, (b) is a case where only the upper part is folded, and (c) is a case where there is no return. 本発明の構造体を建築物に設置した状況を模式的に示す断面図である。点線は、白アリの侵入経路の一例を模式的に示す。It is sectional drawing which shows typically the condition which installed the structure of this invention in the building. The dotted line schematically shows an example of a white ant intrusion route.

本発明になる樹脂被覆鋼板は、基板である鋼板の表面に、樹脂層を有する。ここで、基板は、鋼板であればよく、その種類をとくに限定する必要はない。なお、耐食性の観点からは、溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、溶融亜鉛−アルミニウム合金(Zn−5mass%Al)めっき鋼板、溶融亜鉛−アルミニウム合金(Zn−55mass%Al)めっき鋼板、電気亜鉛−ニッケル合金めっき鋼板等の亜鉛系めっき鋼板、亜鉛合金系めっき鋼板や、さらにアルミめっき鋼板、ニッケルめっき鋼板、ステンレス鋼板等の鋼板とすることが好ましい。   The resin-coated steel sheet according to the present invention has a resin layer on the surface of the steel sheet as a substrate. Here, the substrate may be a steel plate, and the type is not particularly limited. From the viewpoint of corrosion resistance, hot-dip galvanized steel sheet, electrogalvanized steel sheet, hot-dip zinc-aluminum alloy (Zn-5mass% Al) -plated steel sheet, hot-dip zinc-aluminum alloy (Zn-55mass% Al) -plated steel sheet, electrozinc -It is preferable to use steel sheets such as zinc-based plated steel sheets such as nickel alloy-plated steel sheets, zinc alloy-plated steel sheets, and further aluminum plated steel sheets, nickel-plated steel sheets, and stainless steel sheets.

本発明になる樹脂被覆鋼板は、上記した基板の少なくとも片面に、樹脂層を形成する。なお、樹脂層は、両面に形成してもよいことは言うまでもない。
形成する樹脂層の平均膜厚は0.1〜5μmとする。平均膜厚が0.1μm未満では、薄すぎて、所望の昆虫に対する殺虫作用が不十分となる。一方、5μmを超えて厚くなると、樹脂層の加工性が低下し、加工部の接着性が低下する。このため、樹脂層の平均膜厚は0.1〜5μmの範囲に限定した。なお、好ましくは0.5〜3.0μmである。
In the resin-coated steel sheet according to the present invention, a resin layer is formed on at least one side of the substrate. Needless to say, the resin layer may be formed on both sides.
The average film thickness of the resin layer to be formed is 0.1 to 5 μm. If the average film thickness is less than 0.1 μm, it is too thin and the insecticidal action against a desired insect is insufficient. On the other hand, when the thickness exceeds 5 μm, the processability of the resin layer is lowered and the adhesiveness of the processed part is lowered. For this reason, the average film thickness of the resin layer was limited to the range of 0.1 to 5 μm. In addition, Preferably it is 0.5-3.0 micrometers.

基板表面に形成される樹脂層は、樹脂層全体の質量%で、ピレスロイド系化合物を5〜40%含有する樹脂組成物からなる樹脂層とする。なお、ここでいう含有量は、乾燥後の当該成分の含有量をいうものとする。
従来、ピレスロイド系化合物は、昆虫忌避成分として利用されているが、本発明では、昆虫とくに、白アリの殺虫成分として利用し、樹脂層に含有させる。ピレスロイド系化合物の含有量が、樹脂層全体の質量%で5%未満では、昆虫に対する殺虫作用が不足し、所望の効果が期待できない。一方、40%を超えて多量に含有すると、樹脂本来の性能である密着性、耐食性を低下させ、かつ均一な樹脂層の形成が困難となる。なお、好ましくは5〜20%である。
The resin layer formed on the substrate surface is a resin layer made of a resin composition containing 5 to 40% of a pyrethroid compound in mass% of the entire resin layer. In addition, content here says content of the said component after drying.
Conventionally, pyrethroid compounds have been used as insect repellent components, but in the present invention, they are used as insecticides for insects, particularly white ants, and are contained in the resin layer. If the content of the pyrethroid compound is less than 5% by mass% of the entire resin layer, the insecticidal action against insects is insufficient and a desired effect cannot be expected. On the other hand, if the content exceeds 40%, the adhesion and corrosion resistance, which are the inherent properties of the resin, are lowered, and it becomes difficult to form a uniform resin layer. In addition, Preferably it is 5 to 20%.

なお、ピレスロイド系化合物としては、例えば、α−シアノ−3−フェノキシベンジル(+)シス/トランス−2,2−ジメチル−3−(2−メチル−1−プロぺニル)シクロプロンカルボキシラート、α−シアノ−3−フェノキシベンジル(1R,3S)−2,2−ジメチル−3−(1,2,2,2−テトラブロモエチル)シクロプロパンカルボキシラート、(S)−α−シアノ−3−フェノキシベンジル=(Z)−(1R,3S)−2,2−ジメチル−3−〔2−(2,2,2−トリフルオロ−1−トリフルオロメチルエトキシカルボニル)ビニル〕シクロプロパンカルボキシラート、(RS)−α−シアノ−3−フェノキシベンジル=(Z)−(1RS,3RS)−3−(2−クロロ−3,3,3−トリフルオロプロピニル)−2,2−ジメチルシキロプロパンカルボキシラートが挙げられる。殺虫成分として、これら化合物を単独、あるいは適宜組み合わせて使用してもよい。   Examples of the pyrethroid compound include α-cyano-3-phenoxybenzyl (+) cis / trans-2,2-dimethyl-3- (2-methyl-1-propenyl) cyclopronecarboxylate, α -Cyano-3-phenoxybenzyl (1R, 3S) -2,2-dimethyl-3- (1,2,2,2-tetrabromoethyl) cyclopropanecarboxylate, (S) -α-cyano-3-phenoxy Benzyl = (Z)-(1R, 3S) -2,2-dimethyl-3- [2- (2,2,2-trifluoro-1-trifluoromethylethoxycarbonyl) vinyl] cyclopropanecarboxylate, (RS ) -Α-cyano-3-phenoxybenzyl = (Z)-(1RS, 3RS) -3- (2-chloro-3,3,3-trifluoropropynyl) -2,2-di Chill Shi kilometers propane carboxylate and the like. These compounds may be used alone or in appropriate combination as an insecticidal component.

本発明樹脂被覆鋼板で基板表面に形成する樹脂層は、上記したピレスロイド系化合物に加えて、樹脂層全体に対する質量%で、ウレタン樹脂を50〜90%、エポキシ樹脂を3〜10%、さらに腐食抑制剤を0.5〜2%、含有し、あるいはさらに潤滑剤を含有する樹脂組成物からなる樹脂層とする。このような組成の樹脂層とすることにより、加工性、耐食性を損なうことなく、白アリに対する殺虫作用が顕著に向上した樹脂被覆鋼板とすることができる。   The resin layer formed on the substrate surface with the resin-coated steel sheet of the present invention is, in addition to the above-mentioned pyrethroid compound, mass% with respect to the entire resin layer, urethane resin 50 to 90%, epoxy resin 3 to 10%, and further corrosion The resin layer is made of a resin composition containing 0.5 to 2% of an inhibitor or further containing a lubricant. By setting it as the resin layer of such a composition, it can be set as the resin-coated steel plate in which the insecticidal action with respect to a white ant was remarkably improved, without impairing workability and corrosion resistance.

樹脂層を形成するための樹脂としては、未塗装鋼板用としてウレタン樹脂を用いる。ウレタン樹脂であれば、ピレスロイド系化合物、腐食抑制剤、あるいはさらに潤滑剤を均一に分散または溶解できる。ウレタン樹脂の含有量が、樹脂層全体の質量%で、50%未満では、塗膜の造膜性が低下する。一方、95%を超えると、ピレスロイド系化合物の添加量が減少して殺虫性が低下する。このようなことから、樹脂層中のウレタン樹脂の含有量を、樹脂層全体に対する質量%で50〜90%の範囲に限定した。なお、好ましくは70〜90%である。   As a resin for forming the resin layer, a urethane resin is used for an unpainted steel sheet. If it is a urethane resin, a pyrethroid compound, a corrosion inhibitor, or a lubricant can be uniformly dispersed or dissolved. When the content of the urethane resin is less than 50% by mass% of the entire resin layer, the film forming property of the coating film is lowered. On the other hand, if it exceeds 95%, the addition amount of the pyrethroid compound is reduced and the insecticidal property is lowered. For this reason, the content of the urethane resin in the resin layer is limited to a range of 50 to 90% by mass% with respect to the entire resin layer. In addition, Preferably it is 70 to 90%.

また、樹脂層を形成するための樹脂としては、ウレタン樹脂に加えて、エポキシ樹脂を使用する。ウレタン樹脂に加えて、エポキシ樹脂を混合することにより、素地との密着性が向上する。エポキシ樹脂の含有量が、樹脂層全体に対する質量%で、3%未満では、密着性向上の効果が得られない。一方、10%を超えると、塗膜が厚くなり加工性が低下する。このようなことから、樹脂層中のエポキシ樹脂の含有量を、質量%で3〜10%の範囲に限定した。なお、好ましくは5〜8%である。   In addition to the urethane resin, an epoxy resin is used as the resin for forming the resin layer. Adhesion with the substrate is improved by mixing an epoxy resin in addition to the urethane resin. If the content of the epoxy resin is less than 3% by mass with respect to the entire resin layer, the effect of improving adhesion cannot be obtained. On the other hand, if it exceeds 10%, the coating film becomes thick and the workability deteriorates. For this reason, the content of the epoxy resin in the resin layer is limited to a range of 3 to 10% by mass. In addition, Preferably it is 5 to 8%.

また、樹脂層には、腐食抑制剤を含有させる。腐食抑制剤の種類はとくに限定する必要はないが、樹脂層に均一に分散でき、しかも樹脂、殺虫成分を劣化させないものとすることが肝要である。このような腐食抑制剤としては、ジルコニウム化合物、バナジウム化合物、リン酸化合物、シリカ粒子等が例示できるが、本発明ではこれらを単独または複合して含有できる。腐食抑制剤の含有量は、樹脂層全体に対する質量%で0.5〜2%とする。腐食抑制剤の含有量が0.5%未満では、所望の防錆効果が期待できない。一方、2%超えて含有しても、効果が飽和し含有量に見合う効果が期待できず経済的に不利となる。このようなことから、樹脂層中の腐食抑制剤は、樹脂層全体に対する質量%で0.5〜2%の範囲に限定した。   Further, the resin layer contains a corrosion inhibitor. The type of the corrosion inhibitor is not particularly limited, but it is important that it can be uniformly dispersed in the resin layer and does not deteriorate the resin and the insecticidal component. Examples of such a corrosion inhibitor include zirconium compounds, vanadium compounds, phosphoric acid compounds, silica particles, and the like, but in the present invention, these can be contained alone or in combination. The content of the corrosion inhibitor is 0.5% to 2% by mass% with respect to the entire resin layer. If the content of the corrosion inhibitor is less than 0.5%, the desired antirust effect cannot be expected. On the other hand, even if the content exceeds 2%, the effect is saturated and an effect commensurate with the content cannot be expected, which is economically disadvantageous. For these reasons, the corrosion inhibitor in the resin layer is limited to a range of 0.5 to 2% by mass% with respect to the entire resin layer.

上記した組成の樹脂層の形成には、市販の薬剤である水溶性前処理剤が利用できる。市販の水溶性前処理剤としては、例えば、ウレタン樹脂、エポキシ樹脂、腐食抑制剤、さらには潤滑剤を上記した範囲内で含む、CT-E364K(日本パーカー社製)、CT-E312W(日本パーカー社製)、が例示できる。
また、本発明樹脂被覆鋼板では、上記した樹脂層に代えて、塗装鋼板用として樹脂層全体に対する質量%で、ピレスロイド系化合物を5〜40%、熱硬化型アクリル樹脂を60〜90%を含む樹脂組成物からなる樹脂層とすることもできる。この樹脂層は、樹脂として、熱硬化型アクリル樹脂を使用する。この樹脂であれば、ピレスロイド系化合物を均一に分散または溶解でき、塗装鋼板との密着性が向上する。この樹脂の含有量が、樹脂層全体に対する質量%で、60%未満では、塗装鋼板との密着性が低下する。一方、90%を超えて含有すると、ピレスロイド系化合物の添加量が少なくなり殺虫性が低下する。このため、熱硬化型アクリル樹脂を60〜90%の範囲に限定した。なお、この樹脂層は、最高到達板温が160℃以下で硬化させた層とすることが、ピレスロイド系化合物の蒸散を抑えるという観点から好ましい。樹脂の硬化温度が最高到達板温で160℃を超えて高温とすると、ピレスロイド系化合物の蒸散が大きくなる。
For the formation of the resin layer having the above-described composition, a water-soluble pretreatment agent that is a commercially available drug can be used. Commercially available water-soluble pretreatment agents include, for example, urethane resin, epoxy resin, corrosion inhibitor, and lubricant within the above range, CT-E364K (manufactured by Nippon Parker), CT-E312W (Nippon Parker) Can be exemplified.
Further, in the resin-coated steel sheet of the present invention, instead of the above-described resin layer, 5% to 40% of a pyrethroid compound and 60 to 90% of a thermosetting acrylic resin are contained in mass% with respect to the entire resin layer for a coated steel sheet. It can also be set as the resin layer which consists of a resin composition. This resin layer uses a thermosetting acrylic resin as the resin. If it is this resin, a pyrethroid type compound can be uniformly disperse | distributed or melt | dissolved and adhesiveness with a coated steel plate will improve. If the resin content is less than 60% by mass% with respect to the entire resin layer, the adhesion to the coated steel sheet is lowered. On the other hand, when it contains more than 90%, the addition amount of a pyrethroid compound will decrease and insecticidal properties will fall. For this reason, the thermosetting acrylic resin was limited to the range of 60 to 90%. The resin layer is preferably a layer cured at a maximum ultimate plate temperature of 160 ° C. or less from the viewpoint of suppressing the evaporation of the pyrethroid compound. If the curing temperature of the resin is higher than the maximum plate temperature of 160 ° C., the transpiration of the pyrethroid compound increases.

上記した組成の樹脂層は、市販の薬剤である熱硬化型アクリル樹脂剤を利用して形成できる。市販の熱硬化型アクリル樹脂剤としては、例えば、JR110010−8(日本ファインコーティング社製)、JR11010−6(日本ファインコーティング社製)、が例示できる。
つぎに、本発明の樹脂被覆鋼板の好ましい製造方法について説明する。
まず、基板を用意する。本発明では、基板に使用する鋼板はとくに限定する必要はないが、上記したように表面処理鋼板である亜鉛系めっき鋼板やアルミめっき鋼板、ニッケルめっき鋼板、とすることが好ましく、また、ステンレス鋼板を使用してもよい。さらに塗装鋼板を使用してもよい。
The resin layer having the composition described above can be formed using a thermosetting acrylic resin agent which is a commercially available drug. Examples of commercially available thermosetting acrylic resin agents include JR110010-8 (manufactured by Nippon Fine Coating) and JR11010-6 (manufactured by Nippon Fine Coating).
Below, the preferable manufacturing method of the resin-coated steel plate of this invention is demonstrated.
First, a substrate is prepared. In the present invention, the steel plate used for the substrate is not particularly limited. However, as described above, the surface-treated steel plate is preferably a zinc-based plated steel plate, an aluminum-plated steel plate, a nickel-plated steel plate, or a stainless steel plate. May be used. Furthermore, you may use a coated steel plate.

そして、上記したように、樹脂、ピレスロイド系化合物、腐食抑制剤、あるいはさらに潤滑剤、必要に応じてその他の成分を所定範囲内となるように配合し、水または有機溶剤に溶解、または分散させ、エマルジョンとした塗布用溶液(樹脂組成物を含有する溶液)を用意する。塗布用溶液は、市販の水溶性前処理剤あるいは熱硬化型アクリル樹脂剤を利用して、上記した組成範囲の樹脂組成物を含む溶液としてもよい。   Then, as described above, a resin, a pyrethroid compound, a corrosion inhibitor, or even a lubricant, and if necessary, other ingredients are blended within a predetermined range and dissolved or dispersed in water or an organic solvent. A coating solution (solution containing a resin composition) prepared as an emulsion is prepared. The coating solution may be a solution containing a resin composition having the above-described composition range using a commercially available water-soluble pretreatment agent or thermosetting acrylic resin agent.

ついで、用意した溶液を、基板表面に、所定の膜厚となるように塗布する。塗布方法は、スプレー、バーコーター、ロールコーター、浸漬等、常用の塗布方法がいずれも適用できる。ついで、上記した溶液を塗布された鋼板は、加熱炉に装入され、乾燥して表面に樹脂層を形成する。使用する加熱炉は、常用の高周波誘導炉、熱風炉等がいずれも好適に利用できる。なお、加熱炉の雰囲気温度は、300℃以下とすることが好ましい。加熱炉の雰囲気温度が、300℃を超える温度となると、ピレスロイド化合物が蒸散し、樹脂層中に残存しなくなる。なお、より好ましくは250℃以下である。   Next, the prepared solution is applied to the substrate surface so as to have a predetermined film thickness. As a coating method, any of usual coating methods such as spray, bar coater, roll coater, and dipping can be applied. Next, the steel plate coated with the above solution is placed in a heating furnace and dried to form a resin layer on the surface. As the heating furnace to be used, any conventional high-frequency induction furnace, hot air furnace or the like can be suitably used. In addition, it is preferable that the atmospheric temperature of a heating furnace shall be 300 degrees C or less. When the atmospheric temperature of the heating furnace exceeds 300 ° C., the pyrethroid compound evaporates and does not remain in the resin layer. In addition, More preferably, it is 250 degrees C or less.

加熱炉での加熱により、基板温度が160℃以下となるように調整することが好ましい。基板の最高到達温度を160℃以下とすることができ、ピレスロイド化合物の蒸散を抑制することができる。
好ましくは上記したような製造方法で製造された樹脂被覆鋼板を、本発明では、所定の寸法形状に加工した構造体として利用する。この構造体は、例えば、建築物への白アリの侵入を防止する構造体として用いるため、白アリの侵入経路に設置可能な、寸法形状に加工される。白アリの侵入経路に本発明構造体を設置すれば、侵入してきた白アリが本発明構造体に触れることにより、白アリを短時間で死滅(殺虫)させることができる。
It is preferable to adjust the substrate temperature to 160 ° C. or lower by heating in a heating furnace. The maximum temperature reached by the substrate can be 160 ° C. or lower, and the transpiration of the pyrethroid compound can be suppressed.
In the present invention, a resin-coated steel plate manufactured by the manufacturing method as described above is preferably used as a structure processed into a predetermined size and shape. Since this structure is used as, for example, a structure that prevents white ants from entering a building, the structure is processed into a size and shape that can be installed in a white ant intrusion route. If the structure of the present invention is installed in the invasion path of white ants, the invading white ants can touch the structure of the present invention, so that the white ants can be killed (insecticated) in a short time.

白アリの被害が多い建築物部材としては、建築物の外壁、土台、火打土台、大引、根太、根太掛、床束、根搦め、柱、間柱、筋かい、胴縁、下地材、造作部分等に用いられる木材である。白アリは、一般に、地中を通り、建築物内部に侵入し、木材製部材に害を加える場合が多い。このため、上記したような構造体を、図2に示すように、白アリの侵入経路である建築物の基礎や、配管、束石の周辺に設置することが好ましい。さらに、白アリの侵入する可能性がある、例えば、木材とコンクリートとの継目、セパレータの穴、換気口等にも設置することが望ましい。   Building materials that are often damaged by white ants include building outer walls, foundations, firebeds, large draws, joists, joistsakes, floor bundles, roots, pillars, studs, braces, torso, foundation materials, construction Wood used for parts. In general, white ants often pass through the ground, invade the inside of a building, and often harm wood members. For this reason, as shown in FIG. 2, it is preferable to install the structure as described above on the foundation of a building, a pipe, or a bunch of stones, which is a path for white ants. Furthermore, it is desirable to install in the joint of a wood and concrete, the hole of a separator, a ventilation opening, etc. which a white ant may invade.

なお、本発明構造体は、地盤からの長さ(高さ)を400mm以上、好ましくは500mm以上とすることが好ましい。というのは、侵入する白アリ等の昆虫との接触時間を長くするためである。地盤からの高さが400mm程度以上あれば、ほぼ白アリは死滅し、建築物への侵入を防止できる。
図2(a)では、建築物の内部に本発明構造体を設置した例であるが、上部および下部に折返しを有する。上部や下部の折返しが存在することにより、構造体における白アリ等の昆虫の滞在時間を長くすることができる。また、図2(b)は、地盤からの立ち上がり配管の周囲に本発明構造体を巻きつけた例である。上部に折返しを付して、構造体における白アリ等の昆虫の滞在時間を長くできるように工夫をしている。また、図2(b)は、建築物の束の周囲に、本発明構造体を巻きつけたものである。この場合も上部に折返しを付している。なお、折返しは必要に応じて形成するものとする。図2(c)は、束石のまわりに構造体を巻き付けたものである。なお、折返しはなくてもよい。
The structure of the present invention has a length (height) from the ground of 400 mm or more, preferably 500 mm or more. This is to increase the contact time with insects such as white ants that invade. If the height from the ground is about 400mm or more, almost white ants will be killed and intrusion to the building can be prevented.
FIG. 2 (a) is an example in which the structure of the present invention is installed inside a building, but has upper and lower turns. Due to the presence of upper and lower turns, the staying time of insects such as white ants in the structure can be lengthened. FIG. 2B shows an example in which the structure of the present invention is wound around a rising pipe from the ground. The upper part is folded to make it possible to extend the staying time of insects such as white ants in the structure. FIG. 2B shows the structure of the present invention wound around a bundle of buildings. In this case, the upper part is also folded. Note that the wrapping is formed as necessary. FIG. 2C shows a structure in which a structure is wound around a boulder. Note that there is no need to turn back.

また、白アリの被害は、建築物の構造を問わず、木材を使用している箇所に発生する。そのため、本発明構造体は、木造建築物以外にも、鉄骨造、コンクリート造、ブロック造などの建築物にも適用することが好ましい。
以下、実施例に基づき、さらに本発明について説明する。
In addition, white ant damage occurs in places where wood is used regardless of the structure of the building. Therefore, the structure of the present invention is preferably applied to buildings such as steel structures, concrete structures, and block structures in addition to wooden structures.
Hereinafter, based on an Example, this invention is demonstrated further.

塗布溶液Aには、基板として、板厚:0.35mm、めっき付着量:150g/mの溶融亜鉛−アルミニウム合金(Zn−55mass%Al)めっき鋼板を用いた。そして、基板に、表1に示す配合の樹脂組成物を含む塗布溶液を、バーコーダを用いて、表1に示す平均膜厚(乾燥後)となるように塗布し、ついで熱風乾燥機で表1に示す最高到達板温となるまで乾燥し、樹脂層とした。 In the coating solution A, a hot-dip zinc-aluminum alloy (Zn-55 mass% Al) plated steel sheet having a plate thickness of 0.35 mm and a coating adhesion amount of 150 g / m 2 was used as a substrate. And the coating solution containing the resin composition of the mixing | blending shown in Table 1 was apply | coated to the board | substrate so that it might become the average film thickness (after drying) shown in Table 1 with a bar coder, and then it was set to Table 1 with a hot air dryer. It was dried until it reached the maximum plate temperature shown in FIG.

なお、塗布溶液Aは、表1に示す量のウレタン樹脂、エポキシ樹脂、腐食抑制剤およびピレスロイド化合物、さらに潤滑剤を配合した樹脂組成物を含む溶液とした。
また、塗布溶液Bには、基板として板厚:0.35mm、ポリエステル塗料を塗装したカラー鋼板を用いた。そして、基板に、表1に示す配合の樹脂組成物を含む塗布溶液を、バーコーダを用いて表1に示す平均膜厚(乾燥後)となるように塗布し、ついで熱風乾燥機で表1に示す最高到達板温となるまで乾燥し、樹脂層とした。
The coating solution A was a solution containing a resin composition containing a urethane resin, an epoxy resin, a corrosion inhibitor, a pyrethroid compound, and a lubricant in the amounts shown in Table 1.
For the coating solution B, a color steel plate coated with a polyester paint with a plate thickness of 0.35 mm was used as a substrate. And it apply | coats to the board | substrate the coating solution containing the resin composition of the mixing | blending shown in Table 1 so that it may become the average film thickness (after drying) shown in Table 1 using a bar coder, and then to Table 1 with a hot air dryer. It dried until it reached the maximum plate temperature shown, and it was set as the resin layer.

また、塗布溶液Bは、熱硬化型アルカリ樹脂剤(JR110010-8:日本ファインコーティング社製)に、表1に示す量のピレスロイド化合物、必要に応じ溶剤を配合して濃度を調整した樹脂組成物を含む溶液とした。なお、熱硬化型アルカリ樹脂剤(JR110010-8)には、熱硬化型アルカリ樹脂を含有するクリヤー塗料である。
得られた樹脂被覆鋼板から、試験材を採取し、腐食試験、密着性試験、白ありの殺虫試験を実施した。試験方法はつぎのとおりである。
The coating solution B is a resin composition in which the concentration is adjusted by adding a pyrethroid compound in an amount shown in Table 1 to a thermosetting alkaline resin agent (JR110010-8: manufactured by Nippon Fine Coating Co., Ltd.) and a solvent as required. A solution containing The thermosetting alkaline resin agent (JR110010-8) is a clear paint containing a thermosetting alkaline resin.
Test materials were collected from the obtained resin-coated steel sheets, and subjected to a corrosion test, an adhesion test, and a white insecticidal test. The test method is as follows.

(1)密着性試験
得られた樹脂被覆鋼板から試験材(大きさ:70mm×70mm)を採取し、得られた試験片の表面に、カッターナイフで1mm角の碁盤目を100個、導入した。そして、試験片に、導入した碁盤目の裏側からエリクセン試験機で6mm、押出す加工を施した。押出し加工部にセロハンテープを貼り、そして引き離して、被膜(樹脂層)の剥離状況を観察した。樹脂層の剥離がない場合を◎、樹脂層が1〜5個の碁盤目で剥離している場合を○、6〜10個の碁盤目で剥離している場合を△、11個以上の碁盤目で剥離している場合を×として、樹脂層の密着性を評価した。
(1) Adhesion test A test material (size: 70 mm x 70 mm) was collected from the obtained resin-coated steel sheet, and 100 1 mm square grids were introduced into the surface of the obtained test piece with a cutter knife. . Then, the test piece was extruded 6 mm from the back side of the introduced grid by an Erichsen tester. A cellophane tape was applied to the extruded part, and then peeled off to observe the peeling state of the coating (resin layer). ◎ when the resin layer is not peeled, ◯ when the resin layer is peeled at 1-5 grids, △ when the resin layer is peeled at 6-10 grids, 11 or more grids The case where it peeled with eyes was set as x and the adhesiveness of the resin layer was evaluated.

(2)腐食試験
得られた樹脂被覆鋼板から試験片(大きさ:70mm×150mm)を採取し、試験片の裏面および端面にシールを施した。そして、JIS Z 2371の規定に準拠して、雰囲気温度:35℃で、試験片に、5%NaCl水溶液を噴霧する塩水噴霧試験を実施した。試験時間:500 hr後に、試験片の表面を観察し、錆が発生した面積を測定し、錆発生面積率を算出した。錆発生面積率が0%の場合を◎、錆発生面積率が10%未満の場合を○、10%以上30%未満の場合を△、30%以上を×として、耐食性を評価した。
(2) Corrosion test A test piece (size: 70 mm x 150 mm) was taken from the obtained resin-coated steel sheet, and the back and end faces of the test piece were sealed. Then, in accordance with the provisions of JIS Z 2371, a salt spray test was performed in which a 5% NaCl aqueous solution was sprayed on the test piece at an atmospheric temperature of 35 ° C. Test time: After 500 hr, the surface of the test piece was observed, the area where rust was generated was measured, and the rust generation area ratio was calculated. Corrosion resistance was evaluated with ◎ when the rust generation area ratio was 0%, ◯ when the rust generation area ratio was less than 10%, △ when 10% or more and less than 30%, and x when 30% or more.

(3)白ありの殺虫試験
得られた樹脂被覆鋼板から試験材(大きさ:150mm幅×200mm長さ)を採取し、加工して、図1(a),(b),(c)に示す形状の構造体1、2、3とした。なお、構造体1は、上部および下部に折返しを付した。また、構造体2は、上部のみに折返しを付し、構造体3には、折返しを付さなかった。
(3) Insecticidal test with white A test material (size: 150 mm width x 200 mm length) was sampled from the obtained resin-coated steel sheet, processed, and processed into Figs. 1 (a), (b), and (c). It was set as the structure 1, 2, and 3 of the shape shown. In addition, the structure 1 turned over the upper part and the lower part. In addition, the structure 2 was folded only at the top, and the structure 3 was not folded.

ついで、これら構造体を、容器(縦200mm×横300mm×高さ300mm)に装入し、容器の壁に垂直に設置したのち、容器と構造体に隙間がないようにテープで密封した。そして、容器に、イエシロアリ30匹を放置し、1時間後に殺虫されるイエシロアリの数を測定し、殺虫率(%)(=殺虫数/投入数×100)を算出した。また、投入したイエシロアリが全て(100%)殺虫されるまでの時間(min)を測定した。   Next, these structures were placed in a container (length 200 mm × width 300 mm × height 300 mm), placed vertically on the wall of the container, and then sealed with tape so that there was no gap between the container and the structure. Then, 30 termites were left in the container, the number of termites killed after 1 hour was measured, and the insecticidal rate (%) (= number of insecticides / number of inputs × 100) was calculated. Moreover, the time (min) until all the introduced termites were killed (100%) was measured.

得られた結果を表2に示す。   The obtained results are shown in Table 2.

Figure 2013056423
Figure 2013056423

Figure 2013056423
Figure 2013056423

本発明例はいずれも、白アリ等昆虫の殺虫作用を有する樹脂被覆鋼板であり、白アリに対する殺虫作用が強く、侵入経路に設置可能な形状の構造体に加工して建築物の白アリ侵入経路に設置すれば、白アリの侵入を有効に防止でき、白アリによる木材の被害を著しく軽減できることが推察される。なお、ピレスロイド系化合物等の配合量を調整すれば、複雑な加工を必要とする構造体に加工しても、耐食性、密着性を損なわずに、建築物の白アリ被害を軽減できる。本発明の範囲を外れる比較例では、白アリ等昆虫を死滅(殺虫)させることができないか、その能力が低いことがわかる。   All of the examples of the present invention are resin-coated steel sheets having insecticidal action against insects such as white ants, which have strong insecticidal action against white ants and are processed into a structure having a shape that can be installed in an intrusion route. If installed on the route, it is presumed that white ants can be effectively prevented from entering, and damage to the wood caused by white ants can be significantly reduced. If the amount of the pyrethroid compound or the like is adjusted, damage to the white ants of the building can be reduced without sacrificing the corrosion resistance and adhesion even when processed into a structure requiring complicated processing. In the comparative example outside the scope of the present invention, it can be seen that insects such as white ants cannot be killed (insecticide) or their ability is low.

Claims (3)

鋼板の少なくとも片方の表面に樹脂層を有する樹脂被覆鋼板であって、前記樹脂層の平均膜厚を0.1〜5μmとし、該樹脂層を、質量%で、ピレスロイド系化合物を5〜40%、ウレタン樹脂を50〜90%、エポキシ樹脂を3〜10%、腐食抑制剤を0.5〜2%、含有する樹脂組成物からなる樹脂層することを特徴とする殺虫作用を有する樹脂被覆鋼板。   A resin-coated steel sheet having a resin layer on at least one surface of a steel sheet, wherein the resin layer has an average film thickness of 0.1 to 5 μm, the resin layer is in mass%, a pyrethroid compound is 5 to 40%, and urethane A resin-coated steel sheet having an insecticidal action, comprising a resin layer comprising a resin composition containing 50 to 90% resin, 3 to 10% epoxy resin, and 0.5 to 2% corrosion inhibitor. 前記樹脂層を、質量%で、ピレスロイド系化合物を5〜40%、熱硬化型アクリル樹脂を60〜95%を含有する樹脂組成物からなり、最高到達板温を160℃以下として硬化させた樹脂層とすることを特徴とする請求項1に記載の樹脂被覆鋼板。   Resin comprising the resin layer comprising a resin composition containing 5 to 40% of a pyrethroid compound and 60 to 95% of a thermosetting acrylic resin, and cured at a maximum plate temperature of 160 ° C. or less. The resin-coated steel sheet according to claim 1, wherein the resin-coated steel sheet is a layer. 請求項1または2に記載の樹脂被覆鋼板を用いて、昆虫の侵入経路に設置可能に加工された殺虫用構造体。   An insecticidal structure processed to be installed in an insect intrusion route using the resin-coated steel sheet according to claim 1.
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