JPS58172304A - Agent for destroying termite - Google Patents

Abstract

PURPOSE:An agent for destroying termite showing improved emulsifying properties, having improved pickup to a bertical treated face of wood, good penetrating properties to the treated interior, a more source-reducing type than an oiling agent, obtained by dispersing an active ingredient for destroying termite into a machine oil, adding to anionic surface active agent, etc. to it. CONSTITUTION:An active ingredient for destroying termite is dispersed or dissolved in a machine oil, and an anionic surface active agent such as an alkylbenzensulfonate, etc. and/or a nonionic surface active agent such as polyoxyethylene alkylphenol, etc. is added to the dispersion or solution. The machine oil has quality provided by Japanese Industrial Standard (JIS) K 2238 and includes an agricultural machine oil. Chlordene is preferable as the active ingredient for destroying termite, and an organophosphorus-based active ingredient for destroying termite, etc. can be used. 20-60wt% active ingredient for destroying termite and 5-12wt% surface active agent are used in a ratio to give a given emulsifying properties, the machine oil is added to the blend to give 100wt% total amount, and preferably the prepared agent is directly used or after being diluted.

Description

[Detailed description of the invention] The present invention relates to a termiticide.

Conventionally known formulations of termite control agents include oil solutions, emulsions, granules, and powders depending on the purpose of use. It appears that emulsions are used in a small number of cases for termite-proofing the wooden parts of houses, but oils are widely used. The general formula for conventional oil solutions is to dissolve termite-proofing ingredients in kerosene.
This is used as it is by spraying or coating, while conventional emulsions are made by dissolving termite control ingredients in xylene or kerosene along with a surfactant, and are used after being diluted with water as appropriate. As is well known, in order to sufficiently exterminate or prevent termites from the living body of termites in woody parts, the degree of penetration of the chemical into the woody part is an important factor. Conventionally,
The reason why oils are widely used for this purpose is that oil treatment allows for better penetration of the drug than with emulsions of such formulations, and also because it is easier to use during spraying, such as by diluting with water. This is probably because it saves time and effort. However, for oil solutions that use kerosene as a solvent, sufficient safety measures are required during production, storage, and use due to the volatility and flammability of kerosene. According to our experience when using F-drugs, the dripping of both oil and emulsion chemicals is noticeable, which leads to repeated spraying or application several times, which reduces work efficiency and seems to impede the effective use of chemicals. .

The present inventors have recently obtained new knowledge. Herein, the present invention
This invention relates to a termite-proofing agent prepared by dispersing or dissolving a termite-proofing active ingredient in machine oil and adding anionic and nonionic surfactants.

In the present invention, the termite-preventing active ingredient is not limited to those that have the property of being soluble in machine oil, but may also be those that can be dispersed in the form of fine particles.

The machine oil may be of a quality specified by Japanese Industrial Standards (JIS) K223B (machine oil for agricultural chemicals is obsolete to this standard). Regarding the surfactant, in the present invention, it is essential to use an anionic surfactant and a nonionic surfactant in combination in order to obtain good emulsifying properties. Typical examples of anionic surfactants that can be used in the present invention include alkylbenzene Examples of surfactants include polyoxyethylene alkylphenol ether,
Polyoxyethylene castor oil ether, polyoxyethylene castor oil ether, polyoxyethylene alkyl sorbitan ester, etc. can be mentioned, and these can be used alone or as a mixture. Chlortin is a good representative example of the termite-proofing active ingredient in the present invention, but other termite-proofing active ingredients to be used may be appropriately selected from the above-mentioned ranges.

For example, the organic phosphorus thread termiticide active ingredient is 0.0-dimethyl-p-cyanophenyl thiophos 7-A) (
CYAP) 0.0-dimethyl-〇-4-methylthio m-)lyl
Thiophos 7-A) (MPP) 0.0-Dimethyl-〇-4-diF-silyl Thiophos 7-A) (MEP) 0.0-Dimethyl-〇-3.5.6-Dolichloro-2-
Pyridylthiophosphate (chlorpyrifosmethyl) 0
．． 0-Diethyl-3,5,6-)dichloro-2-pyridylthiophosphate (chlorpyrifos) 0-ethyl-3-n-propyl-(J-(2,4-dichloro5enyl) thiophosphate (10,000 Ojos)
0.6-dimethyl-N-acetyl phosphoroamidothioate (a-7phate) ' 0.0-diethyl V-(α-cyanobenzimino) thiophosphate (hoxim) 0.0-diethionate (2,2-dichlorovinyl)phos-7-A) (DDVP), etc. As the carbamate-based termiticide component,
) Ryl-N-methylcarbamate (MTMC)0-'s
ec・Butylphenyl-N-methylcarbamate (BP
MC) 2-improxyphenyl-N-methylcarbamate (PHC), etc., as a pyrethroid termiticide active ingredient, α-cyano-3
-7eth/xybenzyl-2-(4-chlorophenyl)-
Isovalerate (sumicidine) -3-Rou 2-
Methyl-4-oxocyclobent-2-enyl-
Cis,) Lance chrysanthemum acid (Ryorethrin) 3-phenoxybenzyl Out-cis,) Lance-3(2,2-dichlorovinyl)-2,21-dimethylcycloproban carboxylate (Vermethrin) etc. can be used. The compounding ratio Ci of the termiticide active ingredient and surfactant can be adjusted as appropriate depending on the purpose. Example G: It is necessary to use 20 to 60% of the anti-termite active ingredient (by weight, based on the product; the same applies hereinafter), and the amount of surfactant required to change the desired emulsifying property. When is in the above range, generally 5~
It can be appropriately selected from a range of about 12%. The composition of the present invention can be mixed by making the total amount 100% with machine oil. Furthermore, in the present invention, desired adjuvants and other active ingredients such as wood preservatives may be added, and the compositions thus obtained also fall within the scope of the present invention. A typical example of a wood preservative is p-chlorophenoxy-(
3-iodo-2-propargyl)oxymethane (IF-
1000), pentachlorophenol laurate, pistlib rutin oxide, triphenyltin 7-thaleate, 4-(α,α-dimethylpencyl)phenol,
Among them, 4-1-hexylphenol and the like can be mentioned, and among them, the combined use with 1 F-1000 is one of the preferred embodiments since it also provides an enhancing effect.

The composition of the present invention can be used in any form by a conventional method, that is, by using it as it is or by diluting it with water, but it is usually used by diluting it with water. Good. In this case, the dilution ratio should be such that the concentration is such that the anti-termite effect and, in some cases, the antiseptic effect can be effectively found. In the case of chlordane, it should be diluted to a concentration of about 2% or more. Just use it. It should be noted that when used at a concentration of 2%, the resource saving effect is 25 times greater than that of oil.

According to the present invention, it is possible to obtain a significant improvement in the amount of the termite-prevention active ingredient deposited in the vertical treatment direction, and the permeability into the interior of the treated wood is as good as or better than that of oil, and the use of kerosene Therefore, by using kerosene, the above-mentioned limitations conventionally imposed can be removed, and furthermore, a preparation can be obtained that uses 25 times or more resources compared to oil preparations.

Next, some embodiments of the present invention will be shown, but it goes without saying that the present invention is not limited thereto. Incidentally, the proportions are expressed in parts by weight τ.

Chlordane 50% machine oil (
For agricultural chemicals) 40% is mixed uniformly to make an emulsion.

This product is used, for example, after being diluted 20 to 25 times with water.

Example 2 Chlordane 50% machine oil (
For agricultural chemicals) 40% is mixed uniformly to make an emulsion. The viscosity of this product (according to a B-type viscometer) is 1193 centivoise (cp) at 10°C, 440cp at 20°C, and 2860 at 25°C.
It was 191 Cp at 0°C.

This product is used, for example, after being diluted 20 to 25 times with water.

Example 3 Chlordane 50% IF-100
07.5% surfactant (as described in Example 2) 10% machine oil (for agricultural chemicals) 52.5% are mixed uniformly to make an emulsion0 This is diluted 20 to 25 times with water, for example. and use it.

Example 4 Chlordane 40%IF-100
04% Surfactant (as described in Example 2) 10%
Mix 44% of machine oil (for agricultural chemicals) uniformly to make an emulsion.

This product is used after being diluted, for example, 20 times with water.

Next, some test examples will be given to demonstrate the effectiveness of the composition of the present invention.

Trial 1 Example 1 One side of a Peitoga board with dimensions of 50 m x 20 mm x 2 mm (thickness) was framed with aluminum foil at 100% height, leaving one longitudinal side intact, and adhered with adhesive tape. Stand the mounting board vertically with the side without the aluminum foil frame at the bottom. A spray solution was prepared by diluting the test chemical 25 times with water, and this was applied to the openings of the board at a rate of 5ΩOwt per 11 treated surfaces in accordance with the standard specifications for wooden buildings by the Termite Control Association. The area was treated with fog once. Incidentally, Oil Qi J was sprayed as it was. After being left for 72 hours after treatment, the treated surface was divided longitudinally into 7 squares (the other end was divided into 8 squares), widthwise into 4 cat $5 rocks, and the next section was sampled. The extract was extracted with a solvent, and the chlordane content was quantitatively analyzed by gas chromatography.

■ Specimens from the second section in the longitudinal direction, in the 2nd, S@, and 4th columns in the width direction (these samples are referred to as upper section specimens) ■ Specimens in the 4th section in the longitudinal direction, in the 2nd column in the width direction ,3Il
1st column and 4th column (These samples are referred to as middle section samples) ■ Samples from the 6th section in the longitudinal direction and are in the 2nd, 3rd and 4th column in the width direction (These samples are referred to as lower section samples) Results The results shown in Table 1 indicate that the product of the present invention adheres well to the treated wood surface and remains, and that the adhesion is significantly improved (improved) compared to the conventional product. The emulsification state of the water-diluted solution was also very good, which was also clear from a comparison of the emulsification state with a control product that was conducted separately.In other words, the emulsification state of the control product that did not use an anionic surfactant (alkylbenzene sulfonate) was Separation was observed due to poor quality, and commercial value was not recognized.

Test example 2 (treated with chemicals in the same manner as test example 1, wood chips (7QXl
Thaloldane contained in the planer scraps was scraped off from the back side of 50×15 ah every day with an electric plane, and the depth of penetration of the drug was determined by gas chromatography. The results are shown in Table 2.

Table 2 The results show that the product of the present invention has extremely good penetration into the inside of wood, and has a similar or better performance than the conventional product against all of the representative types of wood commonly used in wooden houses in Japan. This shows that the permeability can be changed.

(1 other person) Procedural amendment written on S/21/1982 2, Name of invention termiticide 3, Relationship to the person making the amendment Patent applicant 5, h Date of gag order l Contents of the amendment (1) ! ! ! Details @ 1) [l bottom line) f1 body J
Correct with tr raw 11J.

(2) Correct "triphenyltin 7 tallate" in lines 6113-14 to [bitributyltin 7 tallate].

(3) "Discovered" in the 7th purchase bank of 4 is corrected to "expressed."

(4) "tP-xoo" on page 9, line 3 and page 11,
Correct each oJ as [IP-1060J.

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Claims (1)

[Claims] An anti-termite agent made by dispersing or dissolving an anti-termite active ingredient in machine oil and adding anionic and nonionic surfactants.