JPH05112406A - Preservative composition for wood - Google Patents

Abstract

PURPOSE:To obtain a wood preservative composition having a synergistically enhanced preservative activity by employing both 2,4-dimethylfuran-3- carboxanilide (DMFC) and a specific compound having a germicidal activity. CONSTITUTION:A wood preservative composition having a synergistically enhanced preservative activity comprises (A) DMFC and (B) one, two or three kinds selected from 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate, 3-iodo-2- propynylbutyl carbamate and 4-chlorophenyl-3-iodopropargylformal as essential ingredients in an A:B weight ratio of 80:1 to 1:20, preferably 20:1 to 1:10, especially 4:1 to 1:4, in an A+B total amount of 0.1-95wt.%, preferably 0.2-60wt.%.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

TECHNICAL FIELD The present invention relates to an antiseptic composition for wood.

More specifically, 2,5-dimethylfuran-
3-carboxyanilide (hereinafter, abbreviated as DMFC), 3-bromo-2,3-diiodo-2-propenylethyl carbonate (hereinafter, abbreviated as Sampras), 3-iodo-2-propynylbutyl carbamate (hereinafter, Troysan) And 4-chlorophenyl-3-iodopropargylformal (hereinafter abbreviated as IF-1000).
The present invention relates to an antiseptic composition for wood, which comprises 1 to 3 selected from the above.

[0004]

2. Description of the Related Art In order to prevent decay by various wood-destroying fungi, various inorganic or organic compounds have been conventionally used as wood preservatives. However, conventional drugs have the drawbacks of being highly toxic, exhibiting adverse effects on the human body and environmental pollution, being used at high concentrations, and being expensive.

For this reason, the advent of a wood preservative that is even more effective, safe and inexpensive is desired.

[0006]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention As a result of intensive investigations by the present inventors for a superior wood preservative, DM
It was found that FC has a superior antiseptic effect by adding Sampras, Troysan, and IF-1000, which are already known to have a bactericidal effect to each FC, and completed the present invention. did.

[0007]

[Constitution of the invention]

[0008]

The present invention provides 2,5-dimethylfuran-3-carboxyanilide, 3-bromo-2,3-diiodo-2-propenylethyl carbonate and 3-iodo-2-propynylbutyl. A wood preservative composition comprising 1 to 3 kinds selected from carbamate and 4-chlorophenyl-3-iodopropargyl formal.

The compounding ratio when the composition of the present invention is used is the kind of the tree species or woody material to be treated with the preservative, or the treatment means (for example, coating, dipping, spraying, pouring, mixing, admixing adhesive, etc.). ), But usually DMF
The compounding ratio of C and the other agent is 80: 1 to 1:20 by weight, preferably 20: 1 to 1:10, and more preferably 4: 1 to 1: 4. is there.

The antiseptic composition for wood of the present invention is mixed with a carrier and, if necessary, other auxiliary agents, and has a formulation form usually used as an antiseptic wood, for example, oil, emulsion, solubilizer, paste, It is prepared as a wettable powder, a dry flowable agent, a spray, a paint, etc., and used by a known wood preservative treatment method.

Examples of the auxiliaries which are appropriately used to improve the properties of the preparation and enhance the antiseptic effect include various anionic, cationic and nonionic surfactants, methyl cellulose and vinyl acetate resin. Examples thereof include molecular compounds and water repellents such as paraffin. of course,
Azaconazole, propiconazole, siabendazole, diclofluanid, other wood preservatives and fungicides such as alkyl ammonium compounds, permethrin, cypermethrin, etofenprox, tralomesulin,
Pyrethroid compounds such as silaneofen, chlorpyrifos, phoxime, organophosphorus compounds such as fenitrothion, carbamate compounds such as carbaryl, and other wood insect repellents such as octachlorodipropyl ether can be mixed and used together. It is possible to further improve the effect.

The content of the composition of the present invention in actual use can be varied over a wide range depending on the form of the preparation, but it is generally 0.1 to 95% by weight, preferably 0.2 to 60% by weight in the preparation. % Range.

Next, the efficacy of the wood preservative composition of the present invention will be described with reference to test examples.

[0014]

[Test example]

Binary minimum growth inhibitory concentration by agar dilution method Each sterilized medium containing the drug adjusted to a predetermined concentration by agar dilution method (potato dextrose agar medium: potato leachate 0.4%, glucose 2%, agar 1.5%) )above,
Flora of wood-rotting fungi Kawaratake, Pleurotus ostreatus and Namitake mushroom (about 4 m
m diameter) was inoculated and cultured at 25 ° C. for 5 days for Pleurotus cornucopia and Pleurotus cornucopiae for 7 days at 20 ° C. for Namitake mushroom.

The presence or absence of the reciprocal action has already been confirmed by F. C.
Applied Microbiol by Kull et al.
Ogy 9 538-541 (1961),
The examination was carried out based on the method generally used at present.

First, Table 1 and FIG. 1 show the results when DM + was mixed with Sampras, Table 2 and FIG. 2 show the results when DMOS was mixed with Troysan, and IF- was added to DMFC.
The results when 1000 is blended are shown in Table 3 and FIG.

The binary minimum inhibitory concentration curves shown in FIGS. 1 to 3 are all located considerably below the diagonal line shown by the broken line.

This clearly shows that Sampras, Troysan, and IF-1000 all have a summing effect by blending with DMFC.

[0019]

[Table 1]

[0020]

[Table 2]

[0021]

[Table 3]

Next, some formulation examples of the composition of the present invention will be given, but it goes without saying that the compounding amount, the kind of auxiliary agent and the like can be changed greatly.

[0023]

[Formulation Example 1] (Emulsion) 10 parts of DMFC and 30 parts of Sampras,
It was dissolved in 50 parts of xylene, 10 parts of polyoxyethylene nonyl phenyl ether was added and mixed well to obtain an emulsion.

This emulsion is diluted with an appropriate amount of water at the time of use, and applied to a wood material to be treated by a method such as coating, dipping, or spraying, or as an adhesive for plywood, particle board, hard board, etc. Can be used after being mixed.

[0025]

[Formulation Example 2] (Oil formulation) 3 parts of DMFC and 1 part of Troisan were dissolved in 96 parts of kerosene to obtain an oil formulation.

[0026]

[Formulation Example 3] (Wettable powder) DMFC 15 parts, IF-1000 25 parts,
56 parts of clay, sodium lauryl alcohol sulfonate 3
Parts and 1 part of polyvinyl alcohol were uniformly mixed in a mixer and ground with a hammer mill to obtain a wettable powder.

[0027]

[Brief description of drawings]

FIG. 1 is a graph (binary minimum inhibitory concentration curve) showing the results when DMFC is blended with Sampras.

FIG. 2 is a graph (binary minimum inhibitory concentration curve) showing the result when Troysan was mixed with DMFC.

FIG. 3 is a graph (binary minimum inhibitory concentration curve) showing the results when IF-1000 was added to DMFC.

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[Procedure amendment]

[Submission date] July 24, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (1)

[Claims] 1. 2,5-Dimethylfuran-3-carboxyanilide and 3-bromo-2,3-diiodo-2-
Propenyl ethyl carbonate, 3-iodo-2-propynyl butyl carbamate and 4-chlorophenyl-3
-1 to 3 selected from iodopropargyl formal
An antiseptic composition for wood, which comprises a seed.