JP2005263686A - Wood preservative - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood preservative which enables excellent penetration of an active ingredient into wood, is excellent in antiseptic, fungicidal, ant- and insect-repelling effects and has reduced odor. <P>SOLUTION: An antiseptic/fungicidal agent for wood based on an organic iodine, a triazole, etc. and/or an ant-/insect-repellent for wood based on pyrethroid, neonicotinoide, etc. and, if required, a surfactant are compounded with a adipate such as diisononyl adipate. The wood preservative can be formulated into an oil solution prepared by dissolving the antiseptic/fungicidal agent for wood and/or the ant-/insect-repellent for wood in the diisononyl adipate, an emulsion further containing the surfactant and water, etc. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wood preservative used for antiseptic, antifungal, antproof and / or insectproofing of wood.

  Conventionally, wood used for general industrial materials, civil engineering materials, and the like is protected from decay and damage by being treated with a wood preservative.

In the wood preservative used for such treatment, as a solvent for dissolving the active ingredient, it has good permeability to wood, has low boiling point and has a high boiling point, specifically, a distillation range of 290 to 305 ° C. It has been proposed to use a high-boiling aromatic organic solvent such as xylylethane (for example, trade name “Hysol SAS-296”, manufactured by Shin Nippon Petrochemical Co., Ltd.) (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 10-7502

  However, among the high-boiling aromatic organic solvents listed in Patent Document 1 above, phenylxylylethane has particularly good permeability to wood. There is a problem of producing odor.

  Furthermore, in recent years, with increasing interest in environmental issues, it is desired to reduce the amount of aromatic organic solvent used.

  Accordingly, an object of the present invention is to provide a wood preservative that is excellent in penetrability of an active ingredient into wood, has antiseptic and antifungal effects, and has an insect and insect repellent effect, and has reduced odor and environmental load.

  In order to achieve the above object, the present inventors have an active ingredient excellent in antiseptic and fungicidal and antifungal and insecticidal effects of wood, excellent compatibility with these active ingredients, low odor, and environmental impact. As a result of diligent research on the combination of organic solvents with good permeability to wood, the finding that the above problems can be solved by using a non-aromatic adipic acid ester as a solvent, As a result of further research, the present invention has been completed.

That is, the present invention
(1) a wood preservative characterized by comprising an adipic acid ester and a wood preservative and fungicide and / or a wood ant repellent;
(2) The wood preservative according to (1) above, wherein a wood preservative and / or antifungal agent is dissolved in an adipic acid ester,
(3) The wood preservative according to (1) or (2), further comprising a surfactant,
(4) The wood preservative according to any one of (1) to (3) above, wherein the adipic acid ester is diisononyl adipate
(5) The wood preservation according to any one of the above (1) to (4), wherein the wood preservative and fungicide is an organic iodine antiseptic and / or triazole antiseptic and fungicide Agent,
(6) The wood according to any one of (1) to (5) above, wherein the wood insect repellent is a pyrethroid-based insect repellent and / or a neonicotinoid-based insect repellent. Preservatives,
(7) The wood preservative according to (6) above, wherein the wood ant repellent is clothianidin.

  According to the wood preservative of the present invention, it is possible to sufficiently ensure the penetration of wood-preserving fungicides and wood-insecticide insecticides, which are active ingredients, into the wood, and have excellent antiseptic and fungicidal effects and / or insect-proofing insecticides over the long term An effect can be expressed. Moreover, according to this wood preservative, sufficient low odor can be ensured during and after the treatment, and the environmental load can be reduced.

  The wood preservative of the present invention contains an adipic acid ester, a wood preservative and fungicide, and / or a wood insect repellent.

  In the present invention, the adipic acid ester is not particularly limited, but examples thereof include dialkyl esters of adipic acid having 8 to 18 carbon atoms.

  Specific examples of such adipic acid dialkyl esters include dioctyl adipate, diisooctyl adipate, dinonyl adipate, diisononyl adipate, didecyl adipate, diisodecyl adipate, didodecyl adipate, ditetradecyl adipate, dihexadecyl adipate, dipic adipate Examples include octadecyl and decylisooctyl adipate. Preferably, diisononyl adipate is used.

  In the present invention, the wood antiseptic and fungicides are not particularly limited, and examples thereof include organic iodine antiseptics, triazoles antiseptics, sulfamides antiseptics and bisquaternary ammonium salts. Conventionally known active ingredients such as antiseptic and antifungal agents, quaternary ammonium salt antiseptic and antifungal agents, and phthalonitrile antiseptic and antifungal agents can be mentioned.

  Examples of the organic iodine-based antiseptic and fungicide include, for example, 3-iodo-2-propynylbutyl carbamate (common name: IPBC), parachlorophenyl-3-iodopropargyl formal (trade name: IF-1000, Nagase Sangyo Co., Ltd.) And 3-bromo-2,3-diiodo-2-propenylethyl carbonate (trade name: Sampras, Sankyo Co., Ltd.).

  Examples of the triazole antiseptic and fungicidal agent include 1- [2- (2,4-dichlorophenyl) -4-propyl-1,3-dioxolan-2-ylmethyl] -1H-1,2,4-triazole (conventional use) Name: propiconazole), α- [2- (4-chlorophenyl) ethyl] -α (1,1-dimethylethyl) -1H-1,2,4-triazole-1-ethanol (common name: tebuconazole), α- (4-Chlorophenyl) -α- (1-cyclopropyl-ethyl) -1H-1,2,4-triazole-1-ethanol (common name: cyproconazole), (1-[{2- (2 , 4-dichlorophenyl) -1,3-dioxolan-2-yl} methyl] -yl-2,4-triazole (common name: azaconazole).

  Examples of the sulfamide-based antiseptic and fungicidal agent include N-dichlorofluoromethylthio-N ′, N′-dimethyl-N-phenylsulfamide (trade name: Priventol A4 / S, manufactured by Bayer), N-dichlorofluoromethylthio. -N ', N'-dimethyl-N-4-tolylsulfamide (trade name: Priventol A5, manufactured by Bayer) and the like.

  Examples of the bis-quaternary ammonium salt-based antiseptic and fungicidal agent include N, N′-hexamethylenebis (4-carbamoyl-1-decylpyridinium bromide) (trade name: Dimer 38, manufactured by Inui), N, N ′. -Hexamethylenebis (4-carbamoyl-1-decylpyridinium acetate) (trade name: Dimer 38A, manufactured by Inui), 4,4 '-(tetramethylenedicarbonyldiamino) bis (1-decylpyridinium bromide) (trade name) : Dimer 136, manufactured by Inui Corporation), 4,4 ′-(tetramethylenedicarbonyldiamino) bis (1-decylpyridinium acetate) (trade name: Dimer 136A, manufactured by Inui Corporation), and the like.

  Examples of the quaternary ammonium salt antiseptic and fungicidal agent include didecyldimethylammonium chloride, Cotamine D10EPR (manufactured by Kao) and the like.

  Examples of the phthalonitrile antiseptic and fungicidal agent include 2,4,5,6-tetrachloroisophthalonitrile (trade name: Nopcoside N-96, manufactured by San Nopco Co., Ltd.).

  These wood preservatives and fungicides may be used alone or in combination of two or more. Among the wood antiseptic and antifungal agents exemplified above, it is particularly preferable to use an organic iodine antiseptic and antifungal agent.

  In the present invention, the wood ant insect repellent is not particularly limited, and for example, pyrethroid ant repellent, neonicotinoid ant repellent, organochlorine ant repellent, organophosphorus repellent Examples include conventionally known active ingredients such as ant repellents, carbamate-based ant repellents, and ant repellents made of plants or processed products thereof.

  Examples of pyrethroid-based insect repellents include allethrin, permethrin, tralomethrin, bifenthrin, acrinatrin, alpha cypermethrin, cyfluthrin, ciphenothrin, praletrin, etofenprox, silafluophene, cyfluthrin, permethrin, tralomethrin, fenvalerate, Hoe-498. Etc.

In the neonicotinoid wood insect repellent, a chlorine atom-substituted nitrogen-containing heterocycle and a nitro-substituted imino group (C═N—NO ₂ ) -containing compound are bonded via a divalent hydrocarbon group. It is an insect repellent made of a compound. Examples of the neonicotinoid-based insect repellent include (E) -1- (2-chlorothiazol-5-ylmethyl) -3-methyl-2-nitroguanidine (generic name: clothianidin), N-acetyl- N- (2-chlorothiazol-5-yl) methyl-N′-methyl-N ″ -nitroguanidine, N- (2-chlorothiazol-5-yl) methyl-N-methoxycarbonyl-N′-methyl-N "-Nitroguanidine, 1- (6-chloro-3-pyridylmethyl) -N-nitroimidazoline-2-ylideneamine (generic name: imidacloprid), 3- (2-chloro-thiazol-5-ylmethyl) -5- [ 1,3,5] oxadiazinan-4-ylindene-N-nitroamine (generic name: thiamethoxam), (E) -N-[(6-chloro-3-pyridyl) Methyl] -N'-cyano-N-methylacetamidine (generic name: acetamiprid), (ES) -1-methyl-2-nitro-3- (tetrahydro-3-furylmethyl) guanidine (generic name: dinotefuran) Etc. Among the neonicotinoid compounds exemplified above, it is preferable to use (E) -1- (2-chlorothiazol-5-ylmethyl) -3-methyl-2-nitroguanidine.

  Examples of organochlorine insect repellents include Kelsen. Examples of organic phosphorus-based insect repellents include phoxime, pyridafenthion, fenitrothion, tetrachlorvinphos, diclofenthion, propetanephos, and the like. Examples of carbamate-based insect repellents include carbaryl, fenocarb, propoxur and the like.

  Examples of the insect repellents composed of plants or processed products thereof include, for example, Hiba, Southlea, Magnolia, Atractilodes, Redevouriae, Paeonia, Psorarea, Myristica, Curcuma, Humurus, Sophora, etc. Plant or processed product thereof.

  As a processed product of a hiba, the extract and exudate of a hiba etc. are mentioned, for example. More specifically, for example, if a hiba chip (hiba sawdust) is subjected to steam distillation to be separated into an oil phase and an aqueous phase, the oil phase can be used as hiba oil. Hiba oil contains sesquiterpene and sesquiterpene alcohol as the main components such as sesquiterpene and sesquiterpene alcohol, and tropolones such as hinokitiol, β-drabrin, citronellic acid and carvacrol, and acid such as carboxylic acid and phenol. Contains ingredients. The content ratio of the neutral component to the acidic component is usually 90% for the neutral component and 10% for the acidic component. If an aqueous alkaline solution is added to and extracted from Hiba oil, Hiba acidic oil consisting of an acidic component can be obtained as the extraction component, and Hiba neutral oil consisting of a neutral component can be obtained as the remaining component. it can.

  Further, when extracting hiba oil from hiba chips by steam distillation, hiba resin oil can be obtained by adsorbing and desorbing the acidic components of hiba contained in the distilled water with an adsorbing resin. Moreover, what is marketed can also be used for these Hiba oil, Hiba neutral oil, Hiba acidic oil, and Hiba resin oil.

  Examples of the genus Southus (Saussurea) include mokko, and examples of the treated product include extracts and exudates of the genus Southrea described in Japanese Patent No. 3370610. More specifically, for example, a mokko extract extracted from mokko using an extraction solvent such as acetone or methanol is used.

  An example of the genus Magnolia is Koboku, and an extract or exudate of the genus Magnolia described in Japanese Patent No. 3326148 is used as the processed product. More specifically, for example, an extract of Koboku extracted from Koboku using an extraction solvent such as acetone or methanol is used.

  An example of the genus Atractylodes is Sojutsu, and examples of the treated product thereof include extracts and exudates of the genus Atractylodes described in Japanese Patent No. 3326148. More specifically, for example, the extract of Soryu is extracted using an extraction solvent such as acetone or methanol.

  Examples of the genus Ledebouriella include Bowfu, and examples of processed products thereof include extracts and exudates of the genus Redebouriella described in Japanese Patent No. 3326148. More specifically, for example, a bow-fu extract extracted from bow-fu using an extraction solvent such as acetone or methanol is used.

  An example of the genus Paeonia is a button pi, and an extract or exudate of the genus Paeonia based on the above-mentioned Japanese Patent No. 3326148 is used as the processed product, for example. More specifically, for example, a button pi extract obtained by extracting bot pi using an extraction solvent such as acetone or methanol is used.

  Examples of the genus Psoralea include Japanese cabbage, and examples of the treated product include extracts and exudates of the genus Psorarea based on the above-mentioned Japanese Patent No. 3326148. More specifically, for example, an extract of extract of cautery extracted from an extract with an extraction solvent such as acetone or methanol is used.

  Examples of the Myristica genus include nutmeg, and examples of processed products thereof include Myristica extract and exudate based on the above-mentioned Japanese Patent No. 3326148. More specifically, for example, a nutmeg extract extracted from a nutmeg using an extraction solvent such as acetone or methanol is used.

  As the genus Curcuma, for example, turmeric is used, and as the processed product, for example, an extract or exudate of Curcuma described in Japanese Patent No. 3370610 is used. More specifically, for example, a turmeric extract obtained by extracting turmeric using an extraction solvent such as acetone or methanol is used.

  Examples of the genus Humulus include hops, and examples of the processed product include extracts and exudates of the genus Humurus described in Japanese Patent No. 3326148. More specifically, for example, a hop extract obtained by extracting hops with an extraction solvent such as acetone or methanol is used.

  As the genus Sophora, for example, Kujin is used, and as the processed product, for example, an extract or exudate of the genus Sophora described in Japanese Patent No. 2998729 is used. More specifically, for example, a kudin extract obtained by extracting kujin using an extraction solvent such as acetone or methanol is used.

  These wood ant repellents may be used alone or in combination of two or more. Moreover, among the wood ant repellents exemplified above, it is particularly preferable to use pyrethroid ant repellents and neonicotinoid ant repellents.

  These wood ant repellents may be used alone or in combination of two or more. Moreover, among the wood ant repellents exemplified above, it is particularly preferable to use pyrethroid ant repellents and neonicotinoid ant repellents.

  The ratio of each component in the wood preservative of the present invention is 10 to 80 parts by weight of adipic acid ester, preferably 20 to 70 parts by weight, 0.01 to 5 parts by weight of wood preservative and fungicide, preferably 0.05. ˜2 parts by weight, wood ant repellent, 0.01 to 5 parts by weight, preferably 0.05 to 2 parts by weight are used.

  The wood preservative of the present invention is not particularly limited, and can be formulated into various forms. For example, an oil agent obtained by dissolving a wood preservative and / or antifungal insecticide in an adipic acid ester. For example, it can be formulated into an emulsion containing an adipic acid ester, a wood preservative and fungicide and / or a wood insect repellent, a surfactant and water.

  The oil agent can be prepared by, for example, blending adipic acid ester, wood preservative and antifungal agent, and wood ant repellent with 100 parts by weight of the preparation (oil agent) in the above ratio, and stirring and mixing. it can.

  Moreover, you may mix | blend another well-known solvent with an adipic acid ester in the range which does not produce the restriction | limiting in the effectiveness in an oil agent. Examples of such solvents include aliphatic hydrocarbons such as hexane, cyclohexane, octane, and decane, and aromatic hydrocarbons such as benzene, toluene, and xylene, such as ethyl acetate, butyl acetate, and ethylene glycol monomethyl. Esters such as ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, ethers such as 1,4-dioxane, tetrahydrofuran, etc. Alcohols such as hexanol, octanol, benzyl alcohol, furfuryl alcohol, such as ethylene glycol, diethylene glycol, polyethylene glycol, propylene Glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,4-butanediol, 1,5-pentanediol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol mono Glycols such as ethyl ether and tripropylene glycol monomethyl ether, for example, halogenated hydrocarbons such as carbon tetrachloride, chloroform, dichloromethane, 1,1,1-trichloroethane, chlorobenzene, dichlorobenzene, such as N-methylpyrrolidone, Nitrogen-containing compounds such as N, N-dimethylaniline, pyridine, acetonitrile, dimethylformamide, for example , Petroleum-based solvents such as alkyl cycloparaffins, and the like oils, such as rapeseed oil. These organic solvents may be used alone or in combination of two or more. The blending ratio of such an organic solvent and adipic acid ester is, for example, 25 to 900 parts by weight, preferably 40 to 500 parts by weight with respect to 100 parts by weight of adipic acid ester.

The prepared oil agent can be used by applying and permeating wood according to a conventional method. Generally the usage-amount of this oil agent is set to the range of about 50-300 g / m < ² >.

  The wood preservative prepared as an oil agent has high penetrability into wood and can exhibit antiseptic and fungicidal and / or ant-repellent insecticidal effects over a long period of time. Moreover, since the adipic acid ester as a solvent is less volatilized and the odor is reduced, sufficient low odor can be ensured during and after the treatment. Furthermore, environmental load can be reduced.

  In addition, you may add well-known additives, such as a ultraviolet absorber, antioxidant, a heat stabilizer, a rust preventive agent, a pH adjuster, a softener, and other resin, to an oil agent suitably, for example.

  The emulsion can be prepared by blending a wood preservative and / or fungicide and / or a wood ant repellent, an adipic acid ester, a surfactant and water.

  Examples of the surfactant include conventionally known surfactants such as an anionic surfactant, a cationic surfactant, and a nonionic surfactant.

  Examples of the anionic surfactant include metal soaps, sulfate esters such as alkyl sodium sulfate, alkyl benzene sulfonates such as sodium alkyl benzene sulfonate, sodium alkyl naphthalene sulfonate (for example, trade name: New Calgen BX-C, 2-sulfosuccinic acid dialkyl salts such as alkyl naphthalene sulfonates such as Takemoto Oil & Fats Co., Ltd., dialkyl sodium 2-sulfosuccinate (for example, trade name: Neocor SW-C, Daiichi Kogyo Seiyaku Co., Ltd.), Polycarboxylic acid type surfactant (for example, trade name: Toxanone GR-30, manufactured by Sanyo Chemical Co., Ltd.), α-olefin sulfonate, polyoxyethylene distyrenated phenyl ether sulfate ammonium salt (for example, trade name: Dixzol 60A, 1st Manufactured work Pharmaceutical Co.), sodium lignin sulfonate, potassium lignin sulfonic acid.

  Cationic surfactants mainly include quaternary ammonium salts such as alkyl (C8-C18) trimethylammonium such as octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, stearyltrimethylammonium chloride. Dialkyl (C8-C18) dimethyl ammonium halide such as octadecyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, octyl dodecyl dimethyl ammonium chloride, dihexadecyl dimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride Kind and the like. Moreover, the mixture which has the mixed alkyl group derived from fats and oils, for example, alkyl (C8-C18) trimethylammonium chloride, dialkyl (C8-C18) dimethylammonium chloride, alkyl (C8-C18) dimethylbenzylammonium chloride, etc. are mentioned.

  Nonionic surfactants include, for example, polyoxyethylene alkyl ether, polyoxyalkylene alkyl ether (for example, trade name: NAROACTY N100, Sanyo Chemical Co., Ltd.), polyoxyethylene alkyl aryl ether (for example, trade name: Neugen) EA 142 (EA-142), manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), polyoxyethylene phenyl ether, polyoxyethylene octyl phenyl ether, polyoxyalkylene styryl phenyl ether (for example, trade name: New Calgen CP80 (HLB12)) , New Calgen CP120 (HLB13), Takemoto Yushi Co., Ltd.), aliphatic polyhydric alcohol ester, aliphatic polyhydric alcohol polyoxyethylene, sucrose fatty acid ester, block of ethylene oxide and propylene oxide Polymer (for example, trade name: New Pole PE-64, manufactured by Sanyo Chemical Industries Co., Ltd.), and the like.

  The surfactants exemplified above may be used alone or in combination of two or more. Among the surfactants exemplified above, it is particularly preferable to use a nonionic surfactant, and it is more preferable to use a polyoxyalkylene alkyl ether.

  The emulsion is, for example, 10 to 80 parts by weight of adipic acid ester, preferably 20 to 70 parts by weight, and 0.01 to 5 parts by weight of a wood preservative and fungicide, with respect to 100 parts by weight of the preparation (emulsion). Is 0.05 to 2 parts by weight, 0.01 to 5 parts by weight of a wood ant repellent, preferably 0.05 to 2 parts by weight, and 2.5 to 30 parts by weight when a surfactant is used. Parts, preferably 3 to 20 parts by weight, and further mixed with water to 100 parts by weight, and can be prepared by stirring and mixing. Of the above-mentioned components, water may be blended in advance, but may be blended immediately before processing to wood, and further, a portion is blended in advance and immediately before processing to wood. You may mix | blend remainder with.

  In addition, the emulsion may be blended with other known solvents in combination with adipic acid esters as long as the efficacy is not limited. As such a solvent, the same kind as the organic solvent used in the preparation of the aforementioned oil agent is used. The blending ratio of such an organic solvent and adipic acid ester is, for example, 25 to 900 parts by weight, preferably 40 to 500 parts by weight with respect to 100 parts by weight of adipic acid ester.

The prepared emulsion can be used by coating and permeating wood according to a conventional method. The amount of the emulsion is generally set in the range of about 50 to 300 g / ^{m 2.}

  The wood preservative prepared as an emulsion has high penetrability into wood and can exhibit antiseptic and fungicidal and / or ant-repellent insecticidal effects over a long period of time. Moreover, since the adipic acid ester as a solvent is less volatilized and the odor is reduced, sufficient low odor can be ensured during and after the treatment. Furthermore, environmental load can be reduced.

  In addition, you may mix | blend well-known additives, such as a ultraviolet absorber, antioxidant, a heat stabilizer, a rust preventive agent, a pH adjuster, a softening agent, and other resin, with an emulsion suitably, for example.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to the examples.

Preparation of wood preservative (oil) Example 1
As adipic acid ester, 57.8 parts by weight of diisononyl adipate, 20 parts by weight of diethylene glycol monomethyl ether (methyl diglycol), and alkylcycloparaffin (trade name “Naphthezol 240”, manufactured by Shin Nippon Petrochemical Co., Ltd.) 20 weights 1 part by weight of tebuconazole (wood preservative fungicide), 1 part by weight of propiconazole (wood preservative fungicide) and 0.2 part by weight of clothianidin (wood antiseptic insecticide) And uniformly dissolved to obtain an oil agent.

Comparative Example 1
Except for using 57.8 parts by weight of diphenylalkanes (trade name “Nisseki Hyzol SAS-296”, manufactured by Shin Nippon Petrochemical Co., Ltd.) instead of diisononyl adipate, the same as in Example 1, An oil was obtained. This “SAS-296” is a high-boiling aromatic solvent having a boiling point of 296 ° C. mainly composed of 1,1-phenylxylylethane.

Comparative Example 2
An oil agent was used in the same manner as in Example 1 except that 57.8 parts by weight of 3-methyl-3-methoxybutyl acetate (trade name “Solfit AC”, manufactured by Kuraray Co., Ltd.) was used instead of diisononyl adipate. Got.

Comparative Example 3
Preparation was attempted in the same manner as in Example 1 except that 57.8 parts by weight of butyl laurate was used instead of diisononyl adipate. However, the wood preservative and fungicide and the wood ant repellent could not be dissolved, and a uniform oil agent could not be obtained.

Comparative Example 4
An oil agent was obtained in the same manner as in Example 1 except that diisononyl adipate was not blended and the blending amount of diethylene glycol monomethyl ether was 77.8 parts by weight.

Comparative Example 5
Preparation was attempted in the same manner as in Example 1 except that no adipic acid ester was blended and the blending amount of “naphthethol 240” was 77.8 parts by weight. However, the wood preservative and fungicide and the wood ant repellent could not be dissolved, and a uniform oil agent could not be obtained.

Evaluation of Characteristics of Oil Agent Using the oil agents obtained in Example 1 and Comparative Examples 1, 2, and 4, the following tests were conducted. In the test, baitsuga (basket, 3 to 6 rings / cm, specific gravity of 0.40 to 0.42 g / cm ³ , annual ring angle of about 45 °, moisture content of 8 to 10%) was used as the wood.

(1) Odor test The oil agent was used as it was, and applied to the wood at a rate of about 200 g / m ² , then housed in a desiccator and stored for one day in a 40 ° C. environment. After storage, the air in the desiccator was collected in a tetra bag, and this was used as an odor test sample to conduct an odor sensory test with five panelists to determine the presence or absence of odor. The results are shown in Table 1.

(2) Permeability test The oil agent was used as it was, and it was applied to the wood at a rate of about 200 g / m ² and then left to dry in an atmosphere of 25 ° C. and 65 RH%. After being left for one week, using a microtome, slices were sequentially cut out from the surface of the wood at a depth of 1 mm, and antiseptic / antifungal agents and insect repellents were extracted from the slices and quantitatively analyzed. As a result of the analysis, when each of the antiseptic and antifungal agents and the insect repellents was extracted from the above flakes at a rate of 0.2 kg / m ³ or more, it was determined that these active ingredients had permeated. Moreover, the superiority or inferiority of the permeability was evaluated by comparing the depth values of the samples cut out from the deepest position among the flakes judged to have penetrated the active ingredient. The results are shown in Table 1.

(3) Preservative efficacy test In accordance with the provisions of “Indoor Preservative Efficacy Test Method and Performance Standard for Surface Treatment Wood Preservatives (JWPS-FW-S.1)” established by the Japan Wood Preservation Association, the above-mentioned wood preservative An antiseptic efficacy test was conducted. In carrying out the test, the wood preservative was used as it was, and the weathering operation employed a method of repeating leaching and volatilization. In the evaluation of the antiseptic effect, the case where the mass reduction rate was less than 3% was evaluated as ◎, the case where it was 3% or more and less than 5%, ◯, the case where it was 5% or more and less than 10%, and the case where it was 10% or more. The results are shown in Table 1.

(4) Ant protection test In accordance with the provisions of “Indoor ant protection test method and performance standard (JWPS-TW-S.1) for surface treatment wood protection agent” established by the Japan Wood Preservation Association. An anti-ant effectiveness test of wood preservatives was conducted. The weathering operation method and the evaluation standard (mass reduction rate) of the ant proof effect were the same as the antiseptic effect test of (3) above. The results are shown in Table 1.

  As is apparent from Table 1, the use of diisononyl adipate as a solvent for dissolving the wood preservative and fungicide and the wood ant insect repellent can prevent the generation of odor, and the active ingredient into the wood. The antifungal and antifungal effects could be obtained without reducing the degree of impregnation.

Example 2 Preparation of Wood Preservative (Emulsifying Oil)
36.8 parts by weight of diisononyl adipate, 35 parts by weight of diethylene glycol monomethyl ether, 10 parts by weight of rapeseed oil, polyoxyalkylene alkyl ether (nonionic surfactant, trade name “Naroacty N100”, Sanyo Chemical Co., Ltd.) 16 parts by weight, 1 part by weight of IPBC (wood preservative fungicide), 1 part by weight of propiconazole (wood preservative fungicide) and 0.2 part by weight of clothianidin (wood preservative insecticide) Then, an oil agent for emulsification was obtained by uniformly dissolving.

Comparative Example 6
An oil for emulsification was obtained in the same manner as in Example 2 except that 36.8 parts by weight of “SAS-296” was used instead of diisononyl adipate.

Comparative Example 7
An emulsifying oil was obtained in the same manner as in Example 2 except that 36.8 parts by weight of “Solfit AC” was used instead of diisononyl adipate.

Comparative Example 8
Preparation was attempted in the same manner as in Example 2 except that 36.8 parts by weight of butyl laurate was used instead of diisononyl adipate. However, the wood preservative and fungicide and the wood ant repellent could not be dissolved, and a uniform oil for emulsification could not be obtained.

Comparative Example 9
An oil for emulsification was obtained in the same manner as in Example 2 except that diisononyl adipate was not blended and the blending amount of diethylene glycol monomethyl ether was 71.8 parts by weight.

Comparative Example 10
Preparation was attempted in the same manner as in Example 2 except that diisononyl adipate was not blended and the amount of rapeseed oil was 46.8 parts by weight. However, the wood preservative and fungicide and the wood ant repellent could not be dissolved, and a uniform oil for emulsification could not be obtained.

Evaluation of Emulsion Emulsifying oils obtained in Example 2 and Comparative Examples 6, 7 and 9 were each diluted 3-fold with water to prepare emulsions, and (1) Odor test, (2 Each test of (3) penetration test, (3) antiseptic test, and (4) ant test was performed. In the test, the same wood (Batesga) as that used to evaluate the characteristics of the oil was used. The results are shown in Table 2.

  As is apparent from Table 2, diisononyl adipate was used as a solvent for dissolving the wood preservative and fungicide and wood ant repellent, and a surfactant was added to prepare the emulsion. However, it was possible to prevent the generation of odors, and to obtain excellent antiseptic and fungicidal and anti-insecticidal effects without reducing the level of impregnation of the active ingredients into the wood.

Claims (7)

  A wood preservative comprising an adipic acid ester and a wood preservative and fungicide and / or a wood ant repellent.   The wood preservative according to claim 1, wherein a wood preservative and fungicide and / or a wood ant repellent is dissolved in an adipic acid ester.   The wood preservative according to claim 1 or 2, further comprising a surfactant.   The wood preservative according to any one of claims 1 to 3, wherein the adipic acid ester is diisononyl adipate.   The wood preservative according to any one of claims 1 to 4, wherein the wood preservative and fungicide is an organic iodine antiseptic and / or triazole antiseptic and fungicide.   The wood preservative according to any one of claims 1 to 5, wherein the wood ant repellent is a pyrethroid ant repellent and / or a neonicotinoid ant repellent.   The wood preservative according to claim 6, wherein the wood ant repellent is clothianidin.