JP5282184B2 - Aqueous wood antiseptic / anticidal composition and method for treating wood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aqueous lumber-preservative and anti-termite composition meeting the requirements for relevant preparations in their feed demanded in their pressure-injection method and for relevant liquid chemicals in their use, and to provide a method for treating lumbers using the same. <P>SOLUTION: The aqueous lumber-preservative and anti-termite composition includes: (A) at least one active ingredient selected from &alpha;-(4-chlorophenyl)-&alpha;-(1-cyclopropyl-ethyl)-1H-1,2,4-triazole-1-ethanol[cyproconazole], 3-iodo-2-propynyl-n-butyl carbamate[IPBC] and 1-[6-(chloro-3-pyridinyl)-methyl]-4,5-dihydro-N-nitro-1H-imidazole-2-amine[imidacloprid] and (B) at least another active ingredient selected from the group consisting of a dodecylamine inorganic acid salt or organic salt, tetradecylamine inorganic salt or organic salt, and N, N-didecyl-N-methyl-poly(oxyethyl)ammonium organic acid salt. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an aqueous wood antiseptic / anticidal composition and a method for treating wood using the same. The aqueous wood antiseptic / anticidal composition of the present invention is suitable for pressure injection treatment for imparting an excellent antiseptic / anticidal effect to wood.

  In recent years, wood preservatives such as wood preservatives, fungicides, insect repellents, and ant repellants contain pentachlorophenol (PCP), chromium, arsenic, and copper in consideration of impacts on the human body and environmental impact. Quaternary ammonium compounds such as didecyldimethylammonium chloride, benzalkonium chloride, N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate; triazoles such as cyproconazole and tebuconazole Compounds; organic acid metal compounds such as copper naphthenate and zinc naphthenate; organic iodo compounds such as 3-iodo-2-propynyl-n-butylcarbamate and 4-chlorophenyl-3-iodopropargyl formal; imidacloprid and acetamiprid Neonicotinoid compounds such as are used (For example, Japan Wood Conservation Association, “Introduction to Wood Conservation Science”, 2nd edition, Japan Wood Conservation Association, December 1, 2005, p. 87-111: see Non-Patent Document 1) . Of the above exemplary compounds, many organic compounds other than the quaternary ammonium compounds are generally insoluble or hardly soluble in water.

The method of using wood preservatives is usually to apply wood preservative chemicals to the wood by brushing, roller coating or spray painting at the site where the wood is used, or immersing the wood in the wood preservative chemicals. The surface treatment method that attaches the wood preservative to the surface of the wood and the addition of the wood preservative to penetrate into the wood by immersing the wood in a chemical solution of the wood preservative and repeating the pressure reduction and pressurization at a specialized processing plant. It is roughly divided into pressure injection processing methods.
In the surface treatment method, penetrability of chemicals into wood and good coating properties are required, and a binder that can be made into a water emulsion is used.

  And as a composition for the surface treatment method, for example, in order to increase the permeability to wood, a binder that can be emulsified in water or made of a natural or synthetic oil, an alkyd resin based on this oil is used. And a transparent and storage-stable coating material or treatment composition comprising a biocidal component consisting of a tertiary amine and a salt thereof, a quaternary ammonium salt, and water has been proposed (Japanese Patent Laid-Open No. 2002-2002). No. 502721, see Patent Document 1). Examples thereof include a binder, didecyldimethylammonium chloride, didecyldimethylammonium lactate, dimethyl (alkyl having 8 to 18 carbon atoms) benzylammonium chloride, N, N-didecyl-N-methyl-N-. Disclosed is a formulation comprising poly (oxyethyl) ammonium propinate or alkyltrimethylammonium chloride, a known active ingredient and water.

  On the other hand, the pressure injection treatment method is a method that uses a pressure treatment device to infiltrate the chemical into the wood due to the pressure difference between the wood and the surrounding chemicals, and is the most reliable in terms of antiseptic and ant-proof effects. It can be done. As a pharmaceutical form used in this pressure injection treatment method, a water-soluble drug used by dissolving an active ingredient soluble in water in water is preferable from the viewpoint of cost and environmental protection. Further, compounds insoluble or hardly soluble in water are generally used in the form of an aqueous dispersion or emulsion dissolved in an organic solvent containing a spreading agent, a dispersing agent or an emulsifier.

  Requirements for supplying wood preservatives, especially wood preservatives used in pressure injection treatment methods, include (1) Formulation of organic solvents other than active ingredients in the formulation in consideration of environmental aspects and economy. Reducing the amount, (2) being easy to produce the preparation (for example, being able to be produced by mixing and stirring at room temperature), (3) being a long-term stable and transparent water-soluble composition, (4 ) It can be easily diluted with water at the time of use, and becomes a chemical solution of an aqueous solution or a microemulsion.

  And as requirements required for the chemical solution of the wood preservative at the time of use, (1) it must be a water solution or a microemulsion with high permeability to wood, and (2) keep stable properties over a long period of time, (3) In terms of cost and stability of chemicals under high pressure, it should not contain any components other than active ingredients (for example, binders, hydrophobic polyols, etc.), and (4) pressure-injected wood can be used as rainwater. Even when exposed, water-soluble active ingredients are not easily leached (for example, no surfactant is blended), (5) pressure-injected wood has no metal corrosiveness, etc. Is mentioned.

In general, in formulating a compound that is insoluble or hardly soluble in water, it is preferable from the viewpoint of environmental load to suppress the amount of an organic solvent or an emulsifier used as much as possible.
Therefore, an aqueous solution or aqueous emulsion having a high microbicidal activity has been proposed, which is a combination of at least one azole-type fungicidal agent in the form of a free base and a quaternary ammonium fungicidal agent. -194118 gazette: refer patent document 2). In the examples, it is disclosed that an aqueous solution of alkylbenzyldimethylammonium chloride is heated to 60 ° C., and then tebuconazole and iodopropargyl butyl carbamate are stirred and dissolved to form a transparent solution.

  Also comprising a combination of active compounds comprising at least one azole fungicide, at least one insecticide from the group of nitromethylenes and at least one quaternary ammonium salt fungicide and fungicide. A microbicidal compound preparation based on water has been proposed (see Japanese Patent Publication No. 2000-500475: Patent Document 3). In Example 1, a composition comprising dimethyldidecylammonium chloride, tebuconazole (azole-based fungicide and fungicide), imidacloprid (nitromethylene-based insecticide), isopropanol (solvent) and water is disclosed. .

However, since the quaternary ammonium compound is relatively easily dissolved in water, when the treated wood is immersed in water or exposed to rain water, it is leached and the sustainability of the subsequent antiseptic effect is likely to be lowered.
Therefore, a quaternary ammonium salt type cationic surfactant (A) and a hydrophobic polyol (B) having a number average molecular weight of 150 to 4,000 whose solubility in water at 30 ° C. is 1 g or less / 100 g of water are contained. In addition, the water-soluble or water-dispersible wood preservative composition having a weight ratio (B) / (A) of 0.01 to 1, and further containing the antiseptic ant agent (C) is excellent in water resistance durability. A quaternary ammonium salt type wood preservative / anticide composition has been proposed (see JP-A-2008-265264: Patent Document 4). Further, cyproconazole, imidacloprid, and 3-iodo-2-upyropenylbutyl carbamate are disclosed as antiseptic and antifungal agents (C).

  The applicant of the present application has proposed a wood preservative and wood ant / antifungal agent containing alkylamine acetate as an active ingredient (Japanese Patent Application Laid-Open No. 2004-82696: Patent Document 5 and Japanese Patent Application Laid-Open No. 2006-44223). Publication: see Patent Document 6).

Japanese translation of PCT publication No. 2002-502721 JP-A-5-194118 JP 2000-500475 Gazette JP 2008-265264 A JP 2004-82696 A JP 2006-44223 A

Edited by the Japan Wood Conservation Association, “Introduction to Wood Conservation Science”, 2nd revised edition, Japan Wood Conservation Association, December 1, 2005, p. 87-111

The composition described in Patent Document 1 is a composition for a surface treatment method, contains an alkyd resin as a binder, and does not satisfy the requirement (3) required for a chemical solution at the time of use.
The compositions described in Patent Documents 2 and 3 are inventions relating to a wood preservative containing a quaternary ammonium compound that is easily dissolved in water, and do not satisfy the requirement (4) required for a chemical solution during use.
The composition described in Patent Document 4 contains a hydrophobic polyol and does not satisfy the requirement (3) required for a chemical solution at the time of use.

  It is an object of the present invention to provide an aqueous wood antiseptic / anticidal composition that satisfies the requirements of a preparation at the time of supply required for a pressure injection treatment method and a chemical solution at the time of use, and a method for treating wood using the same. And That is, the present invention is suitable for the pressure injection treatment method, and is easily diluted with water at the time of use to become an aqueous solution, and the pressure-injected wood does not have metal corrosiveness and is exposed to rainwater or the like. However, water-soluble active ingredients are not easily leached from wood and have excellent antiseptic and ant-repellent water resistance and, as a result, water-based wood antiseptic and ant-preserving compositions and water dilutions thereof. It is an object of the present invention to provide a method for treating wood by pressure-injecting an object into wood.

  The inventors of the present invention have conducted extensive studies to solve the above-mentioned problems, and as a result, have been found to have a specific water-insoluble or poorly water-soluble microbicide or insecticidal active ingredient (A) and a specific primary alkylamine salt or A composition comprising an aqueous solution containing a specific quaternary ammonium salt (B) satisfies the requirements of a preparation at the time of supply and a chemical solution at the time of use required for a pressure injection treatment method, and the composition and its The inventors have found that the diluted product can maintain stable properties for a long period of time, and have completed the present invention.

Thus, according to the present invention,
α- (4-chlorophenyl) -α- (1-cyclopropyl-ethyl) -1H-1,2,4-triazole-1-ethanol [cyproconazole],
3-iodo-2-propynyl-n-butylcarbamate [IPBC] and 1-[(6-chloro-3-pyridinyl) -methyl] -4,5-dihydro-N-nitro-1H-imidazol-2-amine [ Imidacloprid]
At least one active ingredient (A) selected from:
Inorganic or organic acid salt of dodecylamine,
From an aqueous solution comprising at least one active ingredient (B) selected from inorganic or organic acid salts of tetradecylamine and organic acid salts of N, N-didecyl-N-methyl-poly (oxyethyl) ammonium An aqueous wood antiseptic and ant preventive composition is provided.

  Further, according to the present invention, the water-based wood preservative / anticide composition described above or a water dilution thereof is pressure-injected into the wood to obtain wood imparted with an antiseptic / anticidal effect. A method for treating wood is provided.

According to the present invention, there is provided an aqueous wood antiseptic / anticidal composition that satisfies the requirements of a preparation at the time of supply required for a pressure injection treatment method and a chemical solution at the time of use, and a method for treating wood using the same. Can do. That is, according to the present invention, it is suitable for the pressure injection treatment method, and is easily diluted with water at the time of use to become an aqueous solution. The pressure-injected wood does not have metal corrosiveness and is exposed to rainwater or the like. Water-soluble active ingredients are not easily leached from the wood, and the water-preserving and ant-repellent effect is excellent in water resistance and as a result, the water-borne wood antiseptic and ant-proof composition having significantly reduced fish toxicity and its or It is possible to provide a wood treatment method in which a water dilution is pressure-injected into wood.
The active ingredients (A) and (B) of the present invention are known active ingredients for antiseptic and ant protection of wood, have original functions, and the active ingredient (B) is a water-insoluble or poorly water-soluble active ingredient. It is considered that it has a dissolution aid function for (A).

  In particular, the water-based wood antiseptic / anticidal composition of the present invention is a water-soluble active ingredient when the pressure-injected wood is exposed to rainwater or the like even though it does not contain a hydrophobic polyol. Primary alkylamine salts or quaternary ammonium salts are not easily leached from wood, and have excellent antiseptic and ant-repellent water resistance. This is an unexpected fact from the fact that preparations using quaternary ammonium salts such as dimethyldidecylammonium chloride are easily leached from wood subjected to pressure injection treatment (Comparative Preparation Examples 5 and 6). (See “Leachability Test”)

  The aqueous wood antiseptic / anticidal composition of the present invention comprises α- (4-chlorophenyl) -α- (1-cyclopropyl-ethyl) -1H-1,2,4-triazole-1-ethanol [common name: shi Proconazole], 3-iodo-2-propynyl-n-butylcarbamate [common name: IPBC] and 1-[(6-chloro-3-pyridinyl) -methyl] -4,5-dihydro-N-nitro-1H -At least one active ingredient (A) selected from imidazol-2-amine [common name: imidacloprid], an inorganic acid salt or organic acid salt of dodecylamine, an inorganic acid salt or organic acid salt of tetradecylamine, and An aqueous solution comprising at least one active ingredient (B) selected from organic acid salts of N, N-didecyl-N-methyl-poly (oxyethyl) ammonium. And features.

The “wood antiseptic / anticidal composition” in the present invention means a composition (chemical) that imparts at least one of an antiseptic effect and an anti-anticidal effect to wood, and “a method for treating wood” It means a method for imparting at least one of the above effects to wood.
The “aqueous solution” in the present invention means an aqueous solution and a solution in the form of a microemulsion, and a solution containing a hydrophilic organic solvent as described later. The aqueous wood antiseptic / anticidal composition of the present invention is particularly preferably in the form of an aqueous solution in which an active ingredient is dissolved, but the requirements required for the preparation at the time of supply required for the pressure injection treatment method and the chemical at the time of use. If it satisfies, it may be in the form of a solution containing a microemulsion and a hydrophilic organic solvent.

The active ingredient (A) cyproconazole, IPBC and imidacloprid are all known microbicidal or insecticidal active ingredients, and commercially available ones can be used.
In the present invention, these three compounds can be used in combination. Examples of the combination include cyproconazole and imidacloprid, cyproconazole and IPBC, imidacloprid and IPBC, and cyproconazole, imidacloprid and IPBC. Among these, the combination (mixture) of cyproconazole, imidacloprid, and IPBC is particularly preferable in terms of imparting excellent antiseptic / anticidal effects to wood.

Examples of the inorganic acid salt of dodecylamine and tetradecylamine as the active ingredient (B) include hydrochloride, sulfate, nitrate, phosphate and the like.
Examples of organic acid salts of dodecylamine and tetradecylamine as the active ingredient (B) include salts of linear or branched carboxylic acids having 1 to 6 carbon atoms such as formic acid, acetic acid, propionic acid, butyric acid and isobutyric acid; Examples thereof include salts of hydroxy acids such as glycolic acid, lactic acid, malic acid and tartaric acid.
Among the above primary alkylamine salts, dodecylamine hydrochloride, dodecylamine acetate, tetradecylamine hydrochloride, and tetradecylamine acetate are particularly preferable from the viewpoint of formulation stability of the composition.

As an organic acid salt of N, N-didecyl-N-methyl-poly (oxyethyl) ammonium as an active ingredient (B), 1-2 mol per nitrogen atom in terms of water resistance durability of pressure-injected wood. Are preferably substituted, such as formic acid, acetic acid, propionic acid, butyric acid and isobutyric acid, such as linear or branched carboxylic acid salts having 1 to 6 carbon atoms; for example, glycolic acid, lactic acid, malic acid and Examples thereof include salts of hydroxy acids such as tartaric acid.
Among the quaternary ammonium salts, N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate (propionate) is particularly preferable from the viewpoint of formulation stability of the composition.

  Accordingly, the active ingredient (B) includes dodecylamine hydrochloride, dodecylamine acetate, tetradecylamine hydrochloride, tetradecylamine acetate, coconutamine acetate or N, N-didecyl-N-methyl-poly (oxyethyl). Ammonium propinate is particularly preferred.

In this invention, each compound can be used in combination as the active ingredient (B). For example, coconut amine acetate containing 70 parts by weight or more of a mixture of acetate of dodecylamine and acetate of tetradecylamine can be used.
Coconut amine acetate is a reaction product of coconut amine derived from nature and acetic acid, and is a mixed alkylamine acetate having 8 to 18 carbon atoms, and its amine value is about 205 to 225.

In the aqueous wood antiseptic / anticidal composition of the present invention, the active ingredient (A) is 0.05 to 7% by weight, preferably 0.1 to 3.5% by weight, and the active ingredient (B) is 5 to 40% by weight. Preferably, 10 to 20% by weight and the balance is water.
When the active ingredient (A) is less than 0.05% by weight, the wood antiseptic / anticidal effect of the present invention may not be sufficiently obtained. When the active ingredient (B) is less than 5% by weight, the active ingredient (A ) Does not dissolve, a water-soluble composition that is stable for a long time cannot be obtained, and when diluted with water at the time of use, a chemical solution of an aqueous solution may not be obtained. May not be sufficiently obtained.
When the active ingredient (A) exceeds 7% by weight, the active ingredient (A) does not dissolve and a stable water-soluble composition cannot be obtained for a long time. A chemical solution may not be obtained, and if the active ingredient (B) exceeds 40% by weight, there is a risk of leaching when the pressure-injected wood is exposed to rainwater or the like.

  The aqueous wood antiseptic / anticidal composition of the present invention can be prepared by mixing and stirring the above-mentioned blended amounts of the active ingredient (A), the active ingredient (B) and water at room temperature. The obtained preparation is usually a light yellow transparent water-soluble composition derived from the amine of the active ingredient (B).

  The aqueous wood antiseptic / anticidal composition of the present invention basically does not contain the active ingredient (A) and the active ingredient (B), but the antifreeze of the preparation in a cold region or the active ingredient (A) at a high concentration. For the formulation stability when blended, a hydrophilic organic solvent may be further contained as long as the effects of the present invention are not impaired.

Examples of such hydrophilic organic solvents include ethylene glycol (abbreviation: EG), diethylene glycol (abbreviation: DEG), polyethylene glycol (abbreviation: PEG), diethylene glycol monomethyl ether (abbreviation: MDG), propylene glycol (abbreviation: PG), Butyl diglycol, butyl glycol, methyl propylene glycol, 2-butoxyethanol, diethylene glycol monobutyl ether, isobutanol, sec-butanol, 2-ethyl-1-butanol, isopentanol, 1-heptanol, 1-octanol, neopentyl alcohol These can be used, and one of these can be used alone or in combination of two or more thereof. Among these, EG, DEG, PG, PEG, and MDG are particularly preferable from the viewpoint of long-term stability of the preparation.
The compounding ratio is 2 to 50% by weight in the composition, preferably 10 to 30% by weight.

Moreover, the aqueous wood antiseptic / ant-proof composition of the present invention may further contain a known antifoaming agent as long as the effects of the present invention are not impaired.
Examples of such known antifoaming agents include silicon-based antifoaming agents, and the blending ratio thereof is 0.01 to 5% by weight, preferably 0.1 to 1% by weight in the composition.

  The inventors of the present invention use a mixture of cyproconazole, imidacloprid and IPBC as the active ingredient (A), or N, N-didecyl-N-methyl-poly (oxyethyl) ammonium as the active ingredient (B). In the case of using a salt, it has been confirmed that even if the preparation further contains a surfactant, the active ingredient is not easily leached when the pressure-injected wood is exposed to rainwater or the like.

Therefore, the aqueous wood antiseptic / anticidal composition of the present invention, when the above-mentioned specific active ingredient (A) or active ingredient (B) is used, is further a surfactant within a range not inhibiting the effect of the present invention. May further be contained.
Examples of such surfactants include higher alcohol and / or sorbitan surfactants. Among these, polyoxyalkylene alkyl ethers as higher alcohol surfactants, and sorbitan surfactants. Polyoxyethylene coconut oil fatty acid sorbitan, polystearic acid polyoxyethylene sorbitan, and monooleic acid polyoxyethylene sorbitan are particularly preferred.
The blending ratio is 0.1 to 10% by weight, preferably 0.5 to 5% by weight in the composition.

The aqueous wood antiseptic / anticidal composition of the present invention is easily diluted with water to form an aqueous solution, which becomes a chemical suitable for pressure injection treatment.
Therefore, the method for treating wood according to the present invention is a method for pressure-injecting the water-based wood preservative / anticide composition of the present invention or a water dilution thereof into wood to obtain wood with antiseptic / anticidal effects. It is characterized by.

  The water dilution can be prepared by diluting the aqueous wood antiseptic / ant-proof composition of the present invention 2 to 100 times, preferably 10 to 40 times with water. The dilution operation is preferably performed at the time of use in a wood processing plant, for example.

  The method for treating wood according to the present invention includes, for example, the use of a decompression / pressurization injection can for wood treatment, a chemical storage / recovery tank, and a wood injection treatment system composed of pipes connecting them. Processing by law.

  The amount of the active ingredient of the chemical solution to be injected into the wood by this method varies depending on the type, use, and shape of the wood to be treated, but usually the active ingredient is about 0.2 to 20 kg per cubic meter of wood. For that purpose, it is preferable that the concentration of the active ingredient in the treatment liquid (effective ingredient absorption amount) is 0.001 to 10% by weight.

  The present invention will be described in more detail with reference to formulation examples and test examples, but the present invention is not limited to these formulation examples and test examples.

(Formulation example)
The following active ingredient and water, an organic solvent as an optional ingredient, and a surfactant were mixed and stirred at room temperature to prepare a preparation as an example of the present invention and a comparative preparation as a comparative example.

Formulation Example 1
Cyproconazole 0.6 parts by weight Dodecylamine hydrochloride 15 parts by weight Water 84.4 parts by weight

Formulation Example 2
Cyproconazole 0.6 parts by weight Tetradecylamine acetate 15 parts by weight Water 84.4 parts by weight

Formulation Example 3
IPBC 1 part by weight Dodecylamine hydrochloride 15 parts by weight Water 84 parts by weight

Formulation Example 4
IPBC 1 part by weight Tetradecylamine acetate 15 parts by weight Water 84 parts by weight

Formulation Example 5
Imidacloprid 0.3 parts by weight Dodecylamine hydrochloride 15 parts by weight Water 84.7 parts by weight

Formulation Example 6
Imidacloprid 0.3 parts by weight Tetradecylamine hydrochloride 15 parts by weight Water 84.7 parts by weight

Formulation Example 7
IPBC 1 part by weight Coconut amine acetate 15 parts by weight Water 84 parts by weight

Formulation Example 8
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight Coconut amine acetate 15 parts by weight Water 83.1 parts by weight

Formulation Example 9
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight Coconutamine acetate 15 parts by weight MDG 30 parts by weight Antifoam (product name: SE39, manufactured by Asahi Kasei Wacker Silicon Co., Ltd.) 0.5 parts by weight 52.6 parts by weight of water

Formulation Example 10
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate (manufactured by Lonza Japan Ltd., product name: BARDAP 26) 20 parts by weight 78.1 parts by weight of water

Formulation Example 11
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate (manufactured by Lonza Japan Ltd., product name: BARDAP 26) 20 parts by weight Part MDG 30 parts by weight Water 48.1 parts by weight

Formulation Example 12
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate (manufactured by Lonza Japan Ltd., product name: BARDAP 26) 20 parts by weight Part MDG 30 parts by weight Surfactant (manufactured by Sanyo Chemical Industries, Ltd., product name: Ionette T20C) 3 parts by weight Surfactant (manufactured by Sanyo Chemical Industries, Ltd., product name: Ionette T60V) 1 part by weight Water 44.1 parts by weight Part

Comparative Formulation Example 1
Cyproconazole 0.6 parts by weight Hexylamine acetate 15 parts by weight Water 84.4 parts by weight

Comparative formulation example 2
Cyproconazole 0.6 parts by weight n-octylamine acetate 15 parts by weight Water 84.4 parts by weight

Comparative formulation example 3
Cyproconazole 0.6 parts by weight 1-aminodecane acetate 15 parts by weight Water 84.4 parts by weight

Comparative Formulation Example 4
Cyproconazole 0.6 parts by weight Hexadecylamine acetate 15 parts by weight Water 84.4 parts by weight

Comparative Formulation Example 5
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight Dimethyldidecylammonium chloride (DDAC) 13.5 parts by weight MDG 30 parts by weight Water 54.6 parts by weight

Comparative Formulation Example 6
Cyproconazole 0.6 parts by weight IPBC 1 part by weight Imidacloprid 0.3 parts by weight Dimethyldidecylammonium chloride (DDAC) 13.5 parts by weight MDG 30 parts by weight Surfactant (manufactured by Sanyo Chemical Industries, product name: Ionette T20C) 3 parts by weight Surfactant (manufactured by Sanyo Chemical Industries, product name: Ionette T60V) 1 part by weight Water 50.6 parts by weight

(Test example)
The preparations of Preparation Examples 1 to 12 and Comparative Preparation Examples 1 to 6 were evaluated by the following test methods.

Test Example 1 (Formulation stability and water dilution stability test)
For each formulation, the properties immediately after the formulation (liquid temperature 20 ° C.), the properties after standing at liquid temperatures 20 ° C., 40 ° C. and 4 ° C. for 3 months after the formulation, and immediately after dilution 10 times with water immediately after the formulation The properties of the diluted solution (solution temperature 20 ° C.) and the properties after standing at the solution temperature 20 ° C. for 3 months were visually observed, and the formulation stability and water dilution stability were evaluated according to the following criteria. .

[Evaluation criteria]
○: Aqueous solution with uniform properties after 3 months Δ: Aqueous solution that is uniform only immediately after formulation and immediately after dilution X: Opaque, suspended or separated immediately after formulation and immediately after dilution Table 1 shows the results obtained.

Test Example 2 (Leaching and Fish Toxicity Test)
Each preparation was diluted with water, and in the case of a primary amine salt, a quaternary ammonium salt or a mixture, a chemical solution for pressure injection treatment was prepared so that the total amount thereof was 1.2% by weight. .
Each obtained chemical solution was injected into 6 pieces of wood (2 cm × 2 cm × 1 cm) under reduced pressure under the condition of a pressure of −0.1 MPa.

The obtained 6 pieces of injected wood pieces were immersed in 80 milliliters of deionized water (liquid temperature 20 ° C.), stirred for 24 hours with a stirrer, and primary amine salt and quaternary ammonium salt in the deionized water after stirring. Alternatively, in the case of a mixture, the concentration as a total amount thereof was measured.
Specifically, 0.2 g of 18% acetic acid aqueous solution and 0.4 g of 0.2% bromophenol blue (dye) / acetone solution are added to 1 gram of deionized water after stirring, and deionized water is further added. The total weight was 100 grams, and the absorbance at a wavelength of 610 nm of the color developing solution obtained using a spectrophotometer was measured. Calculate the leaching amount of the active ingredient in deionized water from the obtained absorbance and a calibration curve of primary amine salt and quaternary ammonium salt prepared in advance, and calculate the wood from the back calculation of the obtained numerical value. The residual ratio (%) of the active ingredient in it was determined, and leaching property was evaluated according to the following criteria.

[Evaluation criteria]
◯: Residual rate in wood of 99% or more Δ: Residual rate in wood of 80% or more and less than 99% ×: Residual rate in wood of 70% or more and less than 80% XX: Residual rate in wood of less than 70% The results are shown in Table 1.

  In addition, a piece of wood into which each chemical solution was injected under reduced pressure in the same manner as above was immersed in 5 liters of water containing one goldfish (Japanese gold) having a length of 4 to 5 cm, and the amount of injected wood (volume) corresponding to LD50 was determined. Measured. LD50 (legislation centimeter / liter water) in each preparation is shown in Table 1 as fish toxicity.

Test example 3 (iron corrosion test)
Each formulation was subjected to an iron corrosion test according to JIS K1571 “Performance Test Method and Performance Standard of Wood Preservative” (2004).
That is, a chemical solution obtained by diluting each preparation 10 times with water was injected into five pieces of wood (2 cm × 2 cm × 4.5 cm) under reduced pressure under a pressure of −0.1 MPa.
Two pieces of iron nails (φ2mm × 3.8cm) were placed in each of the 5 specimens of the injected wood pieces and left for 10 days in an environment of temperature 40 ° C and relative humidity 97%. The iron corrosivity was evaluated according to the following criteria.

[Evaluation criteria]
○: Less than twice the mass reduction rate ×: More than twice the mass reduction rate Table 1 shows the obtained results.

Test Example 4 (Preservation effect confirmation test)
About each formulation, the antiseptic effect confirmation test was done based on JISK1571 "the performance test method and performance standard of a wood preservative" (2004).
That is, the preparations of Preparation Examples 9, 10 and 12 were diluted 10 times, 20 times, 30 times and 40 times with water to prepare a chemical solution for pressure injection treatment.
Each obtained chemical solution was injected into 6 pieces of wood (2 cm × 2 cm × 1 cm) under reduced pressure under the condition of a pressure of −0.1 MPa.
The obtained 6 pieces of injected wood pieces were immersed in about 240 milliliters of deionized water (liquid temperature 20 ° C.) for 8 hours and then dried in a constant temperature bath at 60 ° C. for 16 hours, and repeated 10 times.

Thereafter, the injected wood pieces were exposed to the wood-rotting fungi Ootake and Kawaratake for 3 months, and the average mass reduction rate of the wood pieces was determined.
In the same manner as described above, a test piece without chemical solution was also tested.
In the case of wood without chemicals, the average mass reduction rate was 59.7% for Prunus japonica and 48.9% for Kawaratake, but the mean mass reduction rate was 0.3-0.9% for Prunus edulis with chemical injection. It was 0.5 to 0.9% in Kawaratake, and it was found that an effective antiseptic effect was exhibited.

Test Example 5 (Anti-proof effect confirmation test)
About each formulation, the ant-proof effect confirmation test was done based on JISK1571 "The performance test method and performance standard of a wood preservative" (2004).
That is, the preparations of Preparation Examples 9, 10 and 12 were diluted 10 times, 20 times, 30 times and 40 times with water to prepare a chemical solution for pressure injection treatment.
Each obtained chemical | medical solution was inject | poured under reduced pressure on the wood specimen (2cm x 2cmx1cm) 5 specimens on the conditions of pressure -0.1MPa.
About the obtained 5 pieces of injected wood pieces, the operation of immersing in about 200 milliliters of deionized water (liquid temperature 20 ° C.) for 8 hours and then drying in a constant temperature bath at 60 ° C. for 16 hours was repeated 10 times.

Thereafter, the injected wood pieces were left in a breeding container of 15 soldier ants and 150 craft ants for 21 days, and the average mass reduction rate of the wood pieces was determined.
In the same manner as described above, a test piece without chemical solution was also tested.
In the wood pieces without chemical solution, the average mass reduction rate was 22.2%, but with the chemical solution injection wood pieces, the mass reduction rate was 0.4 to 0.7%, and an effective ant-proof effect was exhibited. I found out.

  From the results of Table 1, the aqueous wood antiseptic / anticidal composition of the present invention (Formulation Examples 1 to 12) satisfies the requirements for the preparation at the time of supply and the chemical solution at the time of use required for the pressure injection treatment method. It turns out that it is a composition. On the other hand, it turns out that a uniform aqueous solution cannot be obtained in the composition (comparative formulation examples 1-6) containing alkylamine salt and ammonium salt other than the active ingredient (B) of this invention.

Claims (6)

α- (4-chlorophenyl) -α- (1-cyclopropyl-ethyl) -1H-1,2,4-triazole-1-ethanol [cyproconazole],
3-iodo-2-propynyl-n-butylcarbamate [IPBC] and 1-[(6-chloro-3-pyridinyl) -methyl] -4,5-dihydro-N-nitro-1H-imidazol-2-amine [ Imidacloprid]
At least one active ingredient (A) selected from:
Inorganic or organic acid salt of dodecylamine,
From an aqueous solution comprising at least one active ingredient (B) selected from inorganic or organic acid salts of tetradecylamine and organic acid salts of N, N-didecyl-N-methyl-poly (oxyethyl) ammonium An aqueous wood antiseptic / anticidal composition characterized by comprising:   The aqueous wood antiseptic / anticidal composition according to claim 1, wherein the active ingredient (A) is a mixture of cyproconazole, IPBC and imidacloprid.   The active ingredient (B) is dodecylamine hydrochloride, dodecylamine acetate, tetradecylamine hydrochloride, tetradecylamine acetate, coconutamine acetate or N, N-didecyl-N-methyl-poly (oxyethyl) ammonium The aqueous wood preservative / anti-ant composition according to claim 1 or 2, which is a propinate.   The aqueous wood preservative according to any one of claims 1 to 3, wherein the active ingredient (A) is 0.05 to 7% by weight, the active ingredient (B) is 5 to 40% by weight, and the balance is water. Anti-ant composition.   The aqueous wood preservative / anti-ant composition according to any one of claims 1 to 4, further comprising a hydrophilic organic solvent.   Applying the water-based wood preservative / anticide composition according to any one of claims 1 to 5 or a water dilution thereof to the wood under pressure to obtain a wood imparted with an antiseptic / anticidal effect. Characteristic wood processing method.