JP6091739B2 - Ant protection method - Google Patents

Description

  The present invention relates to a construction method for preventing white ants from passing through the surface and preventing white ants from being damaged.

  Examples of methods for preventing damage caused by white ants include, for example, a method of applying or impregnating an ant protection agent to the wood itself, a method of spraying ingredients that white ants avoid in the invasion path of white ants, and preventing the access of white ants to wood. It has been known. All of these methods are excellent methods, but the application or impregnation of the ant-preventive agent to the wood as in the former is carried out in advance in the factory, and the treated wood is transported to the construction site to construct the house. It is common to do. On the other hand, the latter method for preventing the entry of white ants is effective not only for the measures against white ants at the time of new construction, but also when the ant protection measures are applied to existing houses that have not been provided with anti-ant measures. This is effective even when anti-ant countermeasures are applied to new houses, and can be applied in a wide range.

  As a method for preventing white ant intrusion, for example, Patent Document 1 discloses that a joint between a solid foundation slab and an outer peripheral rising portion thereof is closed with an ant-proof sheet. In Patent Document 2, in order to prevent the invasion of white ants from the gap between the fabric foundation and the soil concrete, the termite preventer is spread as granular slag inside the fabric foundation and below the soil concrete. A method is disclosed. However, since these methods prevent the invasion of white ants by closing the gaps in which the white ants enter, their application locations are still limited.

JP 2011-99321 A JP 2010-106448 A JP-A-4-187602 JP 2007-290371 A Japanese Patent No. 3078813 JP-A-11-256076 Japanese Patent No. 3981818 JP-A-61-200178 JP 2006-249182 A

  It is desirable to dispose the termite-proofing agent so as to cross the invasion path of the white ants, since the restriction on the application place is reduced. However, when applying or impregnating ant-preventive agents on wood or closing gaps, white ants basically have to eat these ant-preventive agents, so that the ant-proof effect is easy to exert. On the other hand, when the termite-proofing agent is arranged in a planar shape, white ants cannot be expected to eat the termite-proofing agent, and the mechanism for exerting the termite-proofing effect is fundamentally different. For example, white ants are known to form a tunnel (ant road) with their secretions and move through this ant road, and in some cases, form a bypass-like ant road (air ant road). ing. If such an ant path is formed, it will be possible for the white ants to approach the wood while avoiding the planar ant preventive. Therefore, a high technical level is generally required in order to exert the ant-proof effect by arranging the ant-proofing agent in a planar shape. Furthermore, in order to maintain the ant protection effect, a higher technical level is required to maintain the ant protection effect particularly in a place exposed to wind and rain.

  The present invention has been made paying attention to the above-mentioned circumstances, and its purpose is to allow white ants to pass through the surface for a long period of time even when the termite-proofing agent is disposed in a planar shape as in coating or the like. It is to establish technology that can be prevented.

  By the way, Patent Documents 3 to 9 disclose compositions obtained by combining an antifungal agent and a silane compound. However, these are inventions that exhibit ant-repellent properties on the premise that they are applied to or impregnated into wood, and the present invention is different from the present invention in terms of the ant-proofing mechanism. Applicable.

  As a result of intensive research to solve the above-mentioned problems, the present inventors have arranged an ant-repellent in a planar form by coating or the like in the intrusion path of white ants when combining an ant-repellent and a silane compound. Even so, it was found that the surface of white ants could be prevented over a long period of time, and the present invention was completed.

That is, the ant protection method according to the present invention is to apply an ant protection paint composed of an ant protection agent and a silane compound to the intrusion path of white ants in a house, preferably a concrete foundation of a building (for example, its outdoor side) The main point is that it is applied to the wall surface with a predetermined width. It is preferable to impregnate the said ant-proof coating toward the inside from the surface of a concrete foundation. Examples of the silane compound include a silane-siloxane mixture containing an alkylalkoxysilane and an alkylalkoxysiloxane, and the alkylalkoxysilane preferably has a branched C _7-12 alkyl group.

  According to the present invention, since the termite-proofing agent and the silane compound are combined, even if the termite-proofing agent is disposed in a plane shape in the intrusion path of the white-peas, it is possible to prevent the white-peas from passing over the surface for a long period of time.

FIG. 1 is a schematic perspective view showing an example of the ant protection method of the present invention.

  The present invention will be described below with reference to the illustrated examples.

  FIG. 1 is a schematic perspective view showing an example of the ant-proofing method of the present invention. In this illustrated example, the ant-proofing paint 1 of the present invention composed of an ant-proofing agent and a silane compound is applied to a cloth base 2. The ant protection paint 1 protects the wood (base 4 in the illustrated example) from the damage caused by white ants. More specifically, for example, the white ants move in the ground 3 and, after hitting the cloth foundation 2, move upward on the cloth foundation 2 and approach the base 4. There are things to follow. Therefore, if the ant-proof coating 1 of the present invention is applied to the intrusion path 5, the intrusion path 5 can be blocked by the paint 1, and white ants can be prevented from entering.

  The application place of the ant-proofing paint 1 is not particularly limited as long as it is an entry route of white ants into the house. For example, it may be the ground, but the outer wall of the building, particularly a concrete foundation (particularly the side wall surface of the foundation (standing wall)). It is more efficient to apply on the surface) and above the ground). When the ant-proof coating 1 is applied to the concrete foundation, for example, it may be applied to the outdoor side 6 of the foundation as shown in the illustrated example, or may be applied to the indoor side 7, but the outdoor side 6 Since higher durability is required, the performance of the ant-proof coating 1 of the present invention can be effectively used.

  In addition, when applying the ant-proof coating 1 to a concrete foundation, this foundation is not restricted to the cloth foundation of the example of illustration, A solid foundation may be sufficient. Moreover, it is economically superior that the ant-proof coating 1 is applied to a part of the exposed portion of the foundation side wall surface with a predetermined width W rather than the entire width of the exposed portion (for example, from the portion in contact with the ground to the apex). Yes. In the case of coating on a part of the foundation, the coating is usually performed while separating a predetermined height H from the ground 3. When the ant-proof coating 1 is applied to a part of the foundation, the width W of the coated surface 1 is preferably 3 cm or more, and more preferably 5 cm or more. The upper limit of the width W can be appropriately set according to the height of the foundation.

  The ant-proof coating 1 of the present invention may be applied over the entire length of the foundation (in particular, the foundation on the outer periphery of the building), but may be applied with a predetermined length L shorter than the entire length of the foundation. In particular, when outdoor installations (electric water heaters, wood decks, storerooms, planting, etc.) are provided close to the outer wall of the building, white ants often invade from the back side of the outdoor installations. Therefore, if the ant-proof coating 1 of the present invention is applied to the foundation corresponding to the back side of the outdoor installation, the entry of white ants can be prevented most efficiently.

  In the said ant-proofing method, as mentioned above, the ant-proofing paint 1 comprised from an ant-proofing agent and a silane type compound is used. The ant-proof paint of the present invention is not intended to eat white ants and kill them, but to prevent white ants from passing over the paint (especially ant road construction). It is. Combining an ant-proofing agent and a silane compound significantly improves the sustainability (weather resistance) of the white ant passage-preventing effect as compared with the case of combining an ant-proofing agent with other paint components. For this reason, the ant protection method of the present invention can be applied to any place of a building, and even when applied to the outside of a building that is particularly affected by wind and rain, excellent effects are sustained. Moreover, the ant-proof coating of the present invention is excellent in water resistance, and there is no risk of soaking into the soil even when exposed to wind and rain. Therefore, when it is applied to the side wall surface of the foundation, the outflow of the ant protection component into the soil is suppressed, and the influence on the surrounding environment can be reduced.

  Examples of the anti-anticide include acrinatrin, allethrin, cycloprotorin, cyhalothrin, cyfluthrin, cypermethrin, tralomethrin, bifenthrin, phenpropatoline, flucitrinate, permethrin, resmethrin, diphenothrin, phthalthrin, fulvalinate, fenvalerate, etc. Pyrethroid drugs; pyrethroid-like drugs such as silafluophene and etofenprox; carbamate drugs such as carbaryl, fenobucarb, propoxur; organophosphorus insecticides such as phoxime, pyridafenthion, fenitrothion; clothianidin, imidacloprid, thiamethoxam, acetamiprid, dinotefuran, etc. Neonicotinoid drugs (nitroguanidine drugs); phenylpyrazo such as fipronil System agent; hydrazinecarboxamide drugs such as metaflumizone; chlorantraniliprole anthranilic acid amide agents, such as roll; oxadiazine-based drugs such as indoxacarb such Kurorofenapiru can be exemplified. Preferred anti-anticides are pyrethroids, neonicotinoids, phenylpyrazoles, oxadiazines, hydrazinecarboxamides, anthranilic amides, more preferably pyrethroids, neonicotinoids It is a drug.

  The amount of the termite inhibitor is 100 parts by mass of the silane compound (as will be described later, when the silane compound is dispersed or dissolved in the dispersion medium, the total of 100 parts by mass of the silane compound and the dispersion medium). On the other hand, for example, about 0.01 to 20 parts by mass, preferably about 0.05 to 10 parts by mass, more preferably about 0.1 to 5 parts by mass, and particularly preferably about 0.3 to 2 parts by mass. . According to the ant protection method of the present invention, the effect of preventing the passage of white ants can be maintained over a long period of time even if the amount of the ant protection agent is small.

  Examples of the silane compound include silane monomers such as alkoxysilane and alkylalkoxysilane; and siloxanes such as alkylsiloxane and alkylalkoxysiloxane. Preferred silane compounds are polycondensable silane compounds such as silane monomers and alkylalkoxysiloxanes, and more preferred silane compounds are combinations of the above polycondensable silane compounds (silane monomers (especially alkylalkoxy). Silane-siloxane mixtures, such as combinations of silanes) and alkylalkoxysiloxanes. According to this combination, the monomer type silane compound and the polymer type silane compound are both contained in a polycondensable state, so that the effect of preventing the passage of white ants is improved (weather resistance). Remarkably better.

Examples of the alkoxysilane include _C1-4 alkoxysilanes such as methoxysilane, ethoxysilane, dimethoxysilane, diethoxysilane, trimethoxysilane, triethoxysilane, tetramethoxysilane, and tetraethoxysilane.

Examples of the alkylalkoxysilane include alkyl C _1-4 alkoxysilanes such as trialkylmethoxysilane, trialkylethoxysilane, dialkyldimethoxysilane, dialkyldiethoxysilane, alkyltrimethoxysilane, and alkyltriethoxysilane (particularly alkyltriC). _1-4 alkoxysilane). Examples of the alkyl group of the alkylalkoxysilane include methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, t-butyl, pentyl, hexyl, heptyl, octyl, nonyl, and decyl. C _1-20 alkyl groups (particularly C _5-15 alkyl groups) are included. Preferred alkyl groups are alkyl groups having a branched structure, and particularly preferred alkyl groups are branched C _7-12 alkyl groups such as 2,4,4-trimethylpentyl group.

  The alkylsiloxane and alkylalkoxysiloxane may be, for example, a hydrolyzed condensate of alkylalkoxysilane.

  When combining silane monomers (especially alkylalkoxysilane) and alkylalkoxysiloxane, the ratio of silane monomers and alkylalkoxysiloxane is a mass ratio (the former / the latter), for example, about 30/70 to 95/5, preferably Is about 40/60 to 90/10, more preferably about 50/50 to 85/15.

  The silane compound may be dispersed or dissolved in a dispersion medium as necessary. As the dispersion medium, for example, a hydrocarbon solvent or an alcohol solvent described later can be used. Preferred dispersion media are petroleum refining fractions and hydrotreated products thereof. When the dispersant is used, the amount of the silane compound is, for example, about 5 to 60 parts by mass, preferably about 10 to 50 parts by mass, and more preferably, with respect to 100 parts by mass in total of the dispersant and the silane compound. It is about 15-40 mass parts.

  In the present invention, when the ant-proof coating 1 is applied to a concrete foundation, it is desirable to impregnate the ant-proof coating 1 from the surface of the foundation toward the inside. The more it penetrates into the interior, the longer it is possible to prevent the white ants from passing the surface. By using the dispersion medium or using a silane-siloxane mixture (particularly, a combination of alkylalkoxysilane and alkylalkoxysiloxane) as the silane compound, the internal permeability of the ant-proof coating is improved.

  The procedure for preparing the ant-prevention paint by mixing the ant-repellent and the silane compound (and dispersion medium if necessary) is not particularly limited, but after dissolving the ant-preventant in a solvent in advance, this solution and the silane It is recommended to mix the system compound (and dispersion medium if necessary).

  Examples of the solvent that can be used include hydrocarbon solvents and alcohol solvents. This hydrocarbon solvent includes various petroleum refined products and reformed products, for example, cyclic aliphatic hydrocarbons such as naphthene (Naphthesol 160, 200, 220 (trade name) manufactured by Nippon Petrochemical Co., Ltd.) and the like. Solvents: Toluene (Swazole 100 (trade name) manufactured by Maruzen Petroleum Co., Ltd.), xylene (Swazole 200 (trade name) manufactured by Maruzen Petroleum Co., Ltd.), alkylbenzene (Cactus manufactured by Nikko Petrochemical Co., Ltd.) Solvent P-100, P-150 (trade name), etc.), diisopropylnaphthalene (KMC-113 (trade name) manufactured by Kureha Chemical Co., Ltd.) and methylnaphthalene / dimethylnaphthalene mixture (manufactured by Nikko Petrochemical Co., Ltd.) Naphthalenes such as Cactus Solvent P-180 (trade name), alkylbenzene, methylnaphthalene, dimethylnaphthalene Compound (Cactus Solvent P-200, P-207 (trade name), etc., manufactured by Nikko Petrochemical Co., Ltd.), a mixture of 1-phenyl-1-xylylethane and 1-phenyl-1-ethylphenylylethane (Nippon Oil Co., Ltd.) Aromatic hydrocarbon solvents (monocyclic aromatics) such as Hysol SAS-296 (trade name) manufactured by Chemical Co., Ltd., Solvesso 100, 150, 200 (trade name) manufactured by ExxonMobil Chemical Co., Ltd. Hydrocarbon solvents, polycyclic aromatic hydrocarbon solvents, condensed ring aromatic hydrocarbon solvents, and mixed solvents thereof); petroleum refined fractions such as naphtha and hydrotreated products thereof It is done. Preferred hydrocarbon solvents are cycloaliphatic hydrocarbon solvents and aromatic hydrocarbon solvents.

Examples of alcohol solvents include lower alkyl alcohols such as methanol and ethanol (C _1-4 alkyl alcohols), and glycol solvents such as glycols (ethylene glycol, propylene glycol, etc.) or monoalkyl ethers or dialkyl ethers thereof. It is done. A preferred alcohol solvent is glycol monoalkyl ether. Examples of the glycol monoalkyl ether include ethylene glycol monobutyl ether (BDG (trade name) manufactured by Nippon Emulsifier Co., Ltd.) and ethylene glycol monohexyl ether (HeDG (trade name) manufactured by Japan Emulsifier Co., Ltd.). Ethylene glycol C _1-8 alkyl ether is included.

  When the termite inhibitor is dissolved in advance using a solvent, the amount of the solvent used is, for example, about 0.5 to 20 parts by mass, preferably about 1 to 10 parts by mass, with respect to 1 part by mass of the termite inhibitor. More preferably, it is about 2 to 5 parts by mass.

  Since the ant-preventive paint obtained as described above can prevent the passage of white ants over a long period of time, it is possible to simply prevent the white ants from causing damage by simply applying the white ants to the intrusion route.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited by the following examples, but may be appropriately modified within a range that can meet the purpose described above and below. Of course, it is possible to implement them, and they are all included in the technical scope of the present invention.

Example 1
An ant-proof coating was prepared by dissolving the following ant-proofing agent in the solvent shown below and mixing it well with the coating base (polymer compound) shown below. The blending amount is shown in Table 1.

[Anti-anticide]
BF: bifenthrin P: permethrin IM: imidacloprid

[solvent]
HC: Hydrocarbon solvent (Exsol D-80)
GL: Glycol solvent (butyl diglycol)

[Paint base]
SI: Silane-siloxane mixture ("Funcosil CI" manufactured by Remmers)
Heavy hydrotreated naphtha (petroleum) = 60-80% by mass
Triethoxy (2,4,4-trimethylpentyl) silane = 10 to 20% by mass
Trimethoxy (2,4,4-trimethylpentyl) silane = 1 to 2.5% by mass
Alkylalkoxysilane = 5-10% by mass
AC: Vinyl acetate-alkyl acrylate copolymer (Polysol AP-4690N (trade name) manufactured by Showa Denko KK)
ET: ethylene-vinyl acetate copolymer and its modified product (AM Coat 70 (trade name) manufactured by Nippon Defense Chemical Co., Ltd.)

The ant-proof coating obtained as described above was applied twice to the side (50 mm × 60 mm × 4 surfaces) portion of the concrete block 60 mm × 60 mm × height 50 mm (application amount of ant-proof coating: 150 to 250 g / m ² , application amount of the termite-proofing agent: 1.5 to 3 g / m ² , application area: 120 cm ² ). This concrete block is divided into a case where weathering operation is allowed to stand for 10 weeks in a thermostatic bath at a temperature of 50 ° C. (± 2 ° C.) and a case where this weathering operation is not carried out. In each case, bait is placed on the concrete block. Wood (20 mm x 20 mm x 10 mm cedar sapwood) was installed. A concrete block with bait trees was installed directly on top of the termite colony (collected in Kashima City) bred in the laboratory, and the presence or absence of the ant road and its length (height from the ground) were measured. . This experiment was performed with n = 3, and the ant road construction length was the average of the three tests. The results are shown in Table 1.

  As is apparent from Table 1, No. 1 in which a silane-based compound was applied to concrete together with an antifungal agent. Examples of 5, 6, 11, 12, 17 and 18 not only prevent the white ants from passing the surface in the initial stage (without weathering operation), but also prevent the white ants from passing through the surface for a long time even when the weathering operation is performed. it can.

1 Ant-prevention paint 2 Concrete foundation 5 White ant intrusion route 6 Outdoor side

Claims (6)

An ant- proofing method that prevents the passage of white ants over the surface for 6 months or more by applying an ant-proofing paint composed of an ant-proofing agent and a silane-based compound to the white ant intrusion path of a house without blocking the intrusion gap , The termite-proofing method wherein the silane compound is a silane-siloxane mixture containing an alkylalkoxysilane and an alkylalkoxysiloxane .   The ant-proofing method according to claim 1, wherein the ant-proofing paint is applied to a side wall surface of a concrete foundation of a building and above the ground.   The ant-proofing method according to claim 1 or 2, wherein the ant-proofing paint is applied to a concrete foundation of a building with a predetermined width.   The ant-proofing method according to any one of claims 1 to 3, wherein the ant-proofing paint is applied to an outdoor side wall surface of a concrete foundation of a building with a predetermined width.   The ant-proof construction method according to claim 1, wherein the ant-proof coating is impregnated from the surface of the concrete foundation toward the inside. The ant-proof construction method according to claim 1, wherein the alkylalkoxysilane is an alkylalkoxysilane having a branched C _7-12 alkyl group.

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