JPH10258403A - Wood conserving agent composition and wood ant-preventive/preservative composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood conserving agent composition and a wood ant- preventive/preservative composition in which stability is excellent and odorous properties are low in spite of containing 3-iodopropenyl butyl carbamate(IPBC) as the wood conserving agent. SOLUTION: In the wood conserving agent composition containing IPBC and an aliphatic hydrocarbon solvent and the wood ant-preventive/preservative composition which moreover contains the same and an ant-preventive agent, furthermore (A) diethylene glycol monobutyl ether and (B) at least one kind selected from both glycol ethers except diethylene glycol monobutyl ether and phthalic acid ethers are combined and contained as a dissolving auxiliary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a wood preservative composition having a low odor and a wood termite and preservative composition useful as a termite preventive / control agent.

[0002]

BACKGROUND OF THE INVENTION 3-Iodo-propenylbutylcarbamate (common name: 3-iodo-isopropylbutylcarbamate, abbreviation: IPB)
C) is a chemical having excellent wood preservative and fungicidal effects. This compound has high solubility in aromatic hydrocarbons, but low solubility in aliphatic hydrocarbons. 0.1 ~
It shows a solubility of only about 0.5%. When an oil agent (petroleum solution) containing 1% or more of IPBC is to be produced, it is common to use 2 to 10% of diethylene glycol monomethyl ether (abbreviated as MDG) as an auxiliary solvent and further dissolve it in an aromatic solvent. Was. However, many aromatic solvents generally have a peculiar odor, and there is a problem of residual odor during and after construction of wood. Even if an aliphatic solvent is used for the purpose of reducing odor, and a large amount of an auxiliary solvent is added and dissolved, cooling will easily cause IPBC crystal precipitation and liquid separation, resulting in a low-odor wood preservative. Was difficult to prepare.

[0003] In addition, IPBC has low toxicity, high preservative effect, and is formulated as a low-odor wood preservative and fungicide in combination with termite-controlling insecticides. It is used. However,
IPBC is a pale yellowish white solid at room temperature. Although it has some solubility in aromatic hydrocarbons as described above, it hardly dissolves in aliphatic hydrocarbons. Therefore, in the case of formulation, it is common to use an auxiliary solvent such as MDG (diethylene glycol monomethyl ether) or the like and to dissolve it in an aromatic solvent such as Solvesso 150 or the like. However, when an aromatic hydrocarbon is formulated as a solvent, the odor peculiar to the aromatic hydrocarbon solvent is strong, and the working environment during termite prevention and control treatment is poor.
There was a problem that work did not progress.

[0004] Accordingly, an object of the present invention is to provide a composition which can contain a sufficient amount of IPBC as an active ingredient, and does not cause crystal precipitation or liquid separation of IPBC even when stored at a relatively low temperature such as in winter. An object of the present invention is to provide a wood preservative composition which is excellent, has low odor, and is excellent in wood preservative and antifungal effects. Another object of the present invention is to provide IP as an active ingredient.
In addition to being able to contain BC and termiticides in sufficient amounts, even when stored at a relatively low temperature such as in winter, it does not cause IPBC crystal precipitation or liquid separation, and has excellent stability and low odor. It is an object of the present invention to provide a wood ant and antiseptic composition having excellent antiseptic and antifungal effects and termite prevention and control effects.

[0005]

In order to achieve the above-mentioned object, according to the present invention, 3-iodo-iodine as a wood preservative is provided.
In a wood preservative composition containing propenyl butyl carbamate and an aliphatic hydrocarbon solvent, as a solubilizer, (A) diethylene glycol monobutyl ether and (B) glycol ethers other than diethylene glycol monobutyl ether and phthalic acid esters are selected. A wood preservative composition is provided which comprises a combination of at least one of the above. Further, according to the present invention, in a wood termite / preservative composition containing 3-iodo-propenylbutyl carbamate as a wood preservative, a termiticide and an aliphatic hydrocarbon solvent, (A) diethylene glycol is used as a solubilizing agent. A wood ant / antiseptic composition comprising a combination of monobutyl ether and (B) at least one selected from glycol ethers other than diethylene glycol monobutyl ether and phthalic esters. In any of the above compositions, the component (A) is preferably contained in an amount of 1 to 20% by weight and the component (B) is preferably contained in an amount of 5 to 30% by weight based on the total amount of the composition.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present inventors dissolve IPBC in aliphatic hydrocarbons,
As a result of diligent research to obtain a composition that does not cause crystal precipitation or liquid separation of diethylene glycol, diethylene glycol monobutyl ether (common name: butyl diglycol, abbreviation: BDG) and other glycol ethers or phthalate esters are dissolved. The present inventors have found that a stable aliphatic hydrocarbon solution of IPBC which does not cause crystallization of IPBC or liquid separation even at a low temperature can be obtained by combining and using the agents in combination, thereby completing the present invention. That is, in the wood preservative composition containing the IPBC and the aliphatic hydrocarbon solvent according to the present invention, and the wood termite and preservative composition further containing the termiticide, (A) BDG
And (B) at least one selected from glycol ethers other than BDG and phthalic acid esters in combination to ensure sufficient solubility of IPBC, and to improve the stability and stability of the composition. It is characterized by improved odor reduction.

According to the study of the present inventors, when IPBC is dissolved in an aliphatic hydrocarbon, BDG and BDG are dissolved.
When a glycol ether or phthalic acid ester other than the above is used in combination as a solubilizing agent, a composition which does not cause crystallization of IPBC or liquid separation even when cooled to −10 ° C. is obtained. However, the dissolution aid according to the present invention, that is,
It is difficult to achieve the object of the present invention with only one of glycol ethers and phthalic esters containing BDG. For example, when BDG is used alone as a solubilizing agent, IPBC may be used at room temperature at a usage amount of about 7%.
Can be dissolved in aliphatic hydrocarbons up to 1%, but when cooled (−10 ° C.), liquid separation occurs.
Originally, BDG and aliphatic hydrocarbons dissolve arbitrarily and IP
When BC is not contained, liquid separation does not occur. Therefore,
The above liquid separation is a liquid separation caused by IPBC.

[0008] In a dissolution test using, for example, dioctyl phthalate among phthalic esters, it is difficult to dissolve IPBC in aliphatic hydrocarbons unless dioctyl phthalate is used as a solubilizing agent in an amount of about 40%. It was difficult. Further, in a dissolution test using butyl propylene diglycol (BPDG) among glycol ethers, IPBC crystals were precipitated at room temperature at an amount of 10% or less as a solubilizer. As described above, when the solubilizing agent used in the present invention is used alone, it is difficult to obtain a stable aliphatic hydrocarbon solution of IPBC, or it cannot be dissolved unless used in a large amount. On the other hand, for example, BDG 3% and BPDG 7%
By using, it is possible to obtain an aliphatic hydrocarbon solution of IPBC which does not cause IPBC crystal precipitation or liquid separation even when cooled (−10 ° C.). A composition obtained even with a use amount of 7% of BDG alone causes liquid separation in a cooling test (−10 ° C.).
However, by using both of them, liquid separation or IPB
A composition free of crystal precipitation of C is obtained.

The IPBC compounded as a wood preservative in the composition of the present invention is a white solid at room temperature with a chemical name of 3-iodo-propenylbutylcarbamate (chemical formula: C ₈ H ₁₂ INO ₂ ). It is a bactericidal and preservative used as a preservative for paints. This IPBC is excellent in the preservative and fungicidal effects of wood. In the wood preservative composition and the wood termite and preservative composition of the present invention, the IPBC generally represents 0.01 to 10% by weight, preferably 3 to 10% by weight of the total amount of the composition. Although it is used in a blending ratio of not more than 1% by weight, usually a compounding amount of about 1% by weight exhibits a sufficient antiseptic and antifungal effect.

The termiticide to be added to the wood termite / preservative composition of the present invention also varies in suitable amount depending on the kind, but is generally 0.01 to 10% by weight, preferably 3% by weight of the total amount of the composition. % Or less, usually 0.1%
A sufficient termite prevention / control effect is exhibited with a blending amount of about 1% by weight. As the termiticide, various known termiticides can be used, but O, O-diethyl-O- (3,5,6
-Trichloro-2-pyridyl) phosphorothioate (generic name: chloropyrifos), O, O-diethyl-O- (α
-Cyanobenzylideneamino) thiophosphate (generic name: phoxime), O, O-diethyl-O- (3-oxo-2-phenyl-2H-pyridazin-6-yl) phosphorothioate (generic name: pyridafenthion), O-
Organophosphorus insecticides such as [(E) -2-isopropoxycarbonyl-1-methylvinyl] -O-methylethylphosphoramidothioate (generic name: propetanfos);
3-phenoxybenzyl (±) cis / trans-3-
(2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate (generic name: permethrin),
α-cyano-3-phenoxybenzyl-2,2-dimethyl-3- (1,2,2,2-tetrabromoethyl) cyclopropanecarboxylate (generic name: tralomethrin), 2-methylbiphenyl-3-ylmethyl- Cis-
3- (2-chloro-3,3,3-trifluoroprop-
Pyrethroid insecticides such as 1-enyl) -2,2-dimethylcyclopropanecarboxylate (generic name: bifenthrin); 2- (4-ethoxyphenyl) -2-methylpropyl = 3-phenoxybenzyl = ether (generic name) Pyrethroid-like insecticides such as: Etofenprox); (4-ethoxyphenyl)-[3- (4-fluoro-3-phenoxyphenyl) propyl]-(dimethyl)
A silicon-containing termite repellent such as silane (general name: silafluofen) can be suitably used. Also,
If necessary, N- (2-ethylhexyl) -bicyclo- [2.2.1] -hepta-5-ene-2,3-dicarboximide (abbreviation: MGK-264 or sinepirin 222), octachlorodiamine Propyl ether (abbreviation: S
-421) can also be used in combination.

As the aliphatic hydrocarbon solvent used as a solvent for the above-mentioned wood preservative or termiticide, 9 out of kerosene is used.
JIS No. 1 kerosene with 5% distillation temperature of 300 ° C or less, JIS
Those corresponding to No. 2 kerosene are preferable, and those having an aromatic component of 20% or less and less kerosene odor are suitable.

The wood preservative composition of the present invention and wood termite
In the preservative composition, as described above, in addition to the aliphatic hydrocarbon solvent, (A) diethylene glycol monobutyl ether and (B) glycol ethers other than diethylene glycol monobutyl ether and phthalate esters At least one selected from them is contained in combination. The component (A), diethylene glycol monobutyl ether (abbreviation: BDG, chemical formula: C ₈ H ₁₈ O ₃ ), is a transparent liquid at ordinary temperature, and is preferably used in a proportion of 1 to 20% by weight of the total amount of the composition. . If the blending ratio of the component (A) is too large or too small, the IPBC solubility and liquid stability of the composition deteriorate, which is not preferable.

The glycol ethers in the component (B) are, for example, R _1- (O-CH ₂ -CH (R ₂ ))
ethylene glycol represented by the chemical formula of _n -OR _3,
Diethylene glycol, triethylene glycol (n =
1-3) mono- or diether derivatives. In the above chemical formula, R ₁ is an alkyl group having 1 to 12 carbon atoms, preferably 1 to 10 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, ethylhexyl, dodecyl, or a phenyl group such as phenyl or benzyl. R ₂ represents hydrogen or a methyl group; R ₃ represents hydrogen or a group having 1 to 12 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, and isobutyl;
It preferably represents 1 to 10 alkyl groups or acetyl groups. Among the glycol ethers, diethylene glycol (abbreviation: DEDG), butylpropylene diglycol (abbreviation: BPDG) and the like are preferable. As the phthalic acid esters, C ₆ H ₄ (COOR) ₂ —OR ₃ (where R represents an alkyl group having 1 to 12 carbon atoms, preferably 1 to 10 carbon atoms, and R ₃ is the same as defined above. ), A diester derivative of phthalic acid represented by the chemical formula, for example, dioctyl phthalate (abbreviation: DOG) or the like is preferably used. The mixing ratio of the component (B) is 5 to 30 of the total amount of the composition.
% By weight is preferred. If the blending ratio of the component (B) is too large or too small, the IPBC solubility and liquid stability of the composition deteriorate, which is not preferable.

The wood preservative composition of the present invention and wood termite
The antiseptic composition is applied to the wood or wooden building to be treated,
Direct treatment can be performed by any method such as spraying, dipping, and pouring. In addition, termite prevention and control can be broadly classified into xylem treatment, soil treatment, and covering treatment. The wood ant and antiseptic composition of the present invention is used not only for xylem treatment but also for soil treatment and the like. Can be.

[0015]

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, but it goes without saying that the present invention is not limited to the following Examples. In the following examples, “%” means “% by weight” unless otherwise specified.

[0016] In the above formulation, IPBC is first dissolved in a mixture of BDG and DEDG by heating, and furthermore, permethrin, MGK
H.264 and an aliphatic hydrocarbon solvent were sequentially added and dissolved to obtain a clear solution of a termite prevention / control agent. The clear solution did not produce any isolates when cooled to -10 ° C.

[0017] A termite prophylactic / control agent was prepared in the same manner as in Example 1 with the above formulation. A clear solution could be obtained, but cooling to −10 ° C. resulted in separation of the IPBC. That is, even if only BDG was used as a solubilizer, a stable solution that did not cause separation even after cooling was not obtained.

[0018] A termite prophylactic / control agent was prepared in the same manner as in Example 1 with the above formulation. A clear solution could be obtained, but cooling to −10 ° C. resulted in separation of the IPBC. That is, even if only DEDG is used as a solubilizer,
A stable solution that did not cause separation even after cooling was not obtained. As is clear from Example 1 and Comparative Examples 1 and 2, the composition of the present invention could not produce a stable solution by using BDG and DEDG alone as a solubilizing agent (Comparative Example 1). 1, 2), when both dissolution aids were used (Example 1), a stable solution could be prepared even though the total amount used was the same as when used alone.

[0019] In the above formulation, first, a mixture of BDG and DOP
PBC is dissolved by heating, and furthermore, permethrin, MGK2
64 and an aliphatic hydrocarbon solvent were sequentially added and dissolved to obtain a clear solution of a termite prevention / control agent. This clear solution is-
No separation occurred upon cooling to 10 ° C. As a reference comparative example, when only the DOP was used as the solubilizer, D
Even when the amount of OP was increased to 30%, a stable solution that did not produce a separated product was not obtained. As shown in Comparative Example 1, it is difficult to obtain a stable solution by using BDG alone, and it is difficult to obtain a stable solution. A stable solution can be prepared by using these two kinds of solubilizing agents in combination. .

[0020] In the above formulation, IPBC is first dissolved in a mixture of BDG and BPDG by heating, and then permethrin and MGK are dissolved.
H.264 and an aliphatic hydrocarbon solvent were sequentially added and dissolved to obtain a clear solution of a termite prevention / control agent. The clear solution did not produce any isolates when cooled to -10 ° C.
As a reference comparative example, when only BPDG was used as the solubilizing agent, IPBC crystals were separated even when the amount of BPDG was 10%, and a stable solution was not obtained. In addition, it is difficult to obtain a stable solution by using BDG alone as described in Comparative Example 1. As shown in Comparative Example 1, it is necessary to prepare a stable solution by using these two kinds of solubilizing agents in combination. Can be.

[0021]

As described above, a wood preservative composition containing 3-iodo-propenylbutyl carbamate and an aliphatic hydrocarbon solvent as the wood preservative of the present invention, and further containing a termiticide The wood termite / preservative composition further contains (A) diethylene glycol monobutyl ether and (B) at least one selected from glycols other than diethylene glycol monobutyl ether and phthalic acid esters as a dissolution aid. Therefore, IPBC can be contained in a sufficient amount, and even if stored at a relatively low temperature such as in winter,
It is excellent in stability without causing BC crystal precipitation and liquid separation. In addition, because of its low odor, wood preservation and termite prevention and control can be performed with good workability.
Also, almost no residual odor remains after construction.

Claims (3)

[Claims] 1. A wood preservative composition containing 3-iodo-propenylbutyl carbamate as a wood preservative and an aliphatic hydrocarbon solvent, as a solubilizer,
(A) diethylene glycol monobutyl ether;
(B) A wood preservative composition comprising a combination of at least one selected from glycol ethers other than diethylene glycol monobutyl ether and phthalic esters. 2. A wood termite / preservative composition containing 3-iodo-propenylbutyl carbamate as a wood preservative, a termiticide and an aliphatic hydrocarbon solvent, wherein (A) diethylene glycol monobutyl ether is used as a solubilizing agent. And (B) at least one selected from glycol ethers other than diethylene glycol monobutyl ether and phthalic acid esters in combination. 3. The component (A) is added in an amount of 1 to the total amount of the composition.
The composition according to claim 1, wherein the composition comprises from about 20% by weight to about 5% by weight of the component (B).