JPH0753643B2 - Microbicidal composition - Google Patents

Description

Detailed Description of the Invention

[0001]

OBJECT OF THE INVENTION The present invention relates to a microbicidal composition used for controlling and controlling discoloring bacteria, decaying fungi and / or mold which invade wood, leather, fibers, building materials and the like.

[0002] Pollution and damage caused by microorganisms are not limited to the fields of medicine, food and agriculture, but include fields of wood, fibers, leather, building materials, rubber, paints, plastics, etc.

In the fields of wood, textiles, leather, paints, building materials, rubbers, etc., microorganisms that are particularly damaging are rot fungi such as Pleurotus ostreatus, Pleurotus cornucopiae, Pleurotus cornucopiae, Pleurotus cornucopiae, Pleurotus cornucopiae, genus Ophiostoma, Endoconis A discoloring bacterium of the genus Endoconidiophora and the genus Penicillium, Aspergillus
gillus, Rhizopus, Trichoderma
Fungi, such as the genus choderma), have lower drug sensitivity than bacteria and other microorganisms that are generally problematic in other fields.

Therefore, in order to prevent damage from these microorganisms, powerful microbicides must be used in relatively high concentrations. Further, since it is required to have a high effect for a long period of time, it is necessary that the active ingredient has neither weathering nor leaching, and has weather resistance which is not decomposed by water, heat, ultraviolet rays or the like.

In addition to these performances, for safety and hygiene,
Consideration for preventing environmental pollution is also important.

[0006] The present inventors have found that the microbicidal composition is
After many years of diligent studies, by acting on the enzyme protein of the microorganism and changing it, the compound known as a microbicide that kills the microorganism (group A compound) is itself a microbicidal agent. By blending sodium dioctyl sulfosuccinate (B), which has almost no content, the efficacy is enhanced by the synergistic action, the amount of the components to be treated by the microbicide can be reduced, and it is advantageous from the economical and safety and hygiene viewpoints. Therefore, the present invention has been completed by finding out that there is a certain possibility and weather resistance is also improved, so that a residual effect over a long period can be expected.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As the compound of Group A which is one of the active ingredients of the present invention, for example, N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furancarboxamide;
Tris- (N-cyclohexyldiazenium dioxy)
-Aluminum; N, N-dimethyl-N'-phenyl-
(N'-fluorodichloromethylthio) -sulfamide; N-cyclohexyl-diazenium dioxy-potassium; bis (dimethylthiocarbamoyl) disulfide; tributyltin fumarate; tributyltin oxide and tributyltin phthalate. It is known as a control agent for discoloring bacteria, decaying fungi, mold and the like. Further, these compounds may be used alone or in combination of two or more as active ingredients.

The other active ingredient of the present invention, sodium dioctylsulfosuccinate (B), is represented by the following formula:

[0009]

[Chemical 1]

It is known as a wetting agent and a dispersant in the fields of medicine, cosmetics, fibers, photography and the like, but it has almost no microbicidal activity. Further, since the toxicity is low and the compound is produced at a lower cost than the compounds of the group A, the microbicide of the present invention is advantageous from the viewpoint of safety and hygiene or prevention of environmental pollution. It is also economical.

The microorganism to which the microbicidal composition of the present invention is applied is not particularly limited as long as it is a microorganism which is parasitic on wood or the like and rots, but it is preferably rots such as Pleurotus ostreatus, Pleurotus cornucopiae, Pleurotus ostreatus, Pleurotus ostreatus, Pleurotus cornucopiae, etc. Fungi, Ophiostoma genus, Endoconidiophora genus discoloring bacteria and Penicillium (Penicillium) genus, Aspergillus (Aspergillus)
Genus, Rhizopus, Trichoderm
a) A genus of molds

The active ingredient of the present invention is mixed with a carrier and, if necessary, other auxiliary agents, and is in the form of a formulation usually used for industrial fungicides and preservatives, such as an oil-soluble agent, an emulsion, a paste agent, a powder agent, It is prepared and used as a wettable powder, an aerosol, a paint and the like.

Suitable carriers include inert solid carriers such as clay, talc, bentonite, kaolin, silicic acid anhydride, calcium carbonate and wood flour; liquid carriers such as kerosene, ligroin, xylene, methylnaphthalene, dimethylformamide and dimethylsulfoxide. Gas carriers such as nitrogen gas, dimethyl ether, freon gas, vinyl chloride monomer and the like can be mentioned. Examples of the auxiliaries that are appropriately used to improve the properties of the preparation and enhance the antiseptic / antifungal effect include, for example, anionic, cationic and nonionic surfactants, methyl cellulose, pinyl acetate resin, sodium alginate. Various polymer compounds and the like are listed. Of course, such as 2- (4-thiazolyl) benzimidazole (thiabendazole), N, N-dimethyl-N '-(dichlorofluoromethylthio) -N'-phenylsulfamide (diclofluanide) or benzanilide series is used. It can be used in combination with other antiseptic / antifungal agents, which can further improve the effect.

The content of the active ingredient of the present invention in actual use can be varied over a wide range depending on the form of the preparation, but in general, the compounds of the (A) group are contained in an amount of 0.2 to 10% based on the wood used. A suitable range is 15% by weight, preferably 0.5 to 5% by weight. Sodium dioctylsulfosuccinate (B) is used in a weight ratio of 1: 0.03 to 10. 0, preferably 1: 0.5-
It is 5.0.

[0015]

The effect of the microbicidal composition of the present invention will be described below with reference to test examples.

[0016]

【Example】

Test Example 1 Tris- (N-cyclohexyldiazenium dioxy)
-Aluminum (NCH-Al) and sodium dioctyl sulfosuccinate (N-290K) were used to trial-prepare the chemical solutions shown in Table 1, and a wood piece with a thickness of 5 mm, a width of 20 mm, and a length of 40 mm was prepared.
Each test piece applied to 110 ± 10 g / m ² was tested by the preservative efficacy test method of Japan Wood Preservation Association Standard No. 1. The results are shown in Table-2.

[0017]

[Table 1]

[0018]

[Table 2]

Test Example 2 Bis (dimethylthiocarbamoyl) disulfide (TMTD)
And sodium dioctyl sulfosuccinate (N-290K) were used to prepare chemical solutions having the formulations shown in Table 3 and tested in the same manner as in Test Example 1. The results are shown in Table-4.

[0020]

[Table 3]

[0021]

[Table 4]

Test Example 3 Tributyltin oxide (TBTO) and sodium dioctyl sulfosuccinate (N-290K) were used to prepare a chemical solution having the formulation shown in Table 5, and the same method as in Test Example 1 was tested. The results are shown in Table-6.

[0023]

[Table 5]

[0024]

[Table 6]

Test Example 4 N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furancarboxamide (xylazane-B) and sodium dioctylsulfosuccinate (N-290K) were used, and the formulations shown in Table 7 were used. The beech sapwood with a thickness of 3 mm, a width of 20 mm, and a length of 50 mm, and 10 to 20 pieces of the beech sapwood were immersed in each chemical solution for 3 minutes to make test pieces, respectively, according to the Japan Wood Preservation Association Standard No. 2 The antifungal agent for wood was tested by the antifungal efficacy test method. The results are shown in Table-8.

[0026]

[Table 7]

[0027]

[Table 8]

*) Test bacteria A1: Aspergillus niger van Tieghem IFO 6341 = ATCC
6275 A2: Penicillium funiculosum Thom IFO 6345 = ATCC
9644 A3: Rhizopus javanicus Takeda IFO 6354 A4: Aureobasidium pullulans Arnaud IFO 6353 = IA
M A5: Gliocladium virens Miller, Giddens & Fosteb I
FO 6355 = ATCC 9645 Test Example 5 N, N-dimethyl-N'-phenyl- (N'-fluorodichloromethylthio) -sulfamide (diclofluanid) and sodium dioctylsulfosuccinate (N-290K)
Was used to prepare a drug solution having the formulation shown in Table 9, and the test was performed in the same manner as in Test Example 4. The results are shown in Table-10.

[0029]

[Table 9]

The bacteria used in this test are the same as in Test Example 4.

[0031]

[Table 10]

Test Example 6 Tributyltin phthalate and sodium dioctyl sulfosuccinate (N-290K) were used, and a chemical solution having the formulation shown in Table 11 was prepared and tested in the same manner as in Test Example 4. The results are shown in Table-12.

[0033]

[Table 11]

The bacteria used in this test are the same as in Test Example 4.

[0035]

[Table 12]

As shown in the above test examples, the composition of the present invention exhibits excellent antiseptic / antifungal efficacy and is extremely useful for controlling and / or controlling microorganisms.

Next, some examples of the antifungal and antiseptic formulations of the present invention will be given, but it goes without saying that the compounding amount, the kind of the auxiliary agent, etc. can be greatly changed. (In the text, all parts are parts by weight.) Formulation example 1. Emulsion 10 parts of NCH-Al and 10 parts of N-290K were dissolved in 40 parts of dimethylformamide, 50 parts of xylene and 10 parts of polyoxyethylene nonyl phenyl ether were added and mixed sufficiently to obtain an emulsion. This emulsion is used by diluting it with an appropriate amount of water before use and applying it to a wood material to be treated by a method such as coating, dipping or spraying, and can also be applied to a treatment for mixing an adhesive agent such as structural plywood or particle board.

Formulation Example 2. Oil-soluble agent 1 part of NCH-Al and 1 part of N-290K were dissolved in 2 parts of dimethylformamide, and 96 parts of solvent naphtha was added to obtain an oil solution.
This oil agent is used by a method such as spraying, coating or dipping, pouring, etc. on the wood material to be treated.

Formulation Example 3. Dust agent 2 parts of TMTD and 2 parts of N-290K were dissolved in 10 parts of acetone, 68 parts of clay and 30 parts of talc were added and uniformly mixed, and then acetone was removed by evaporation to obtain a dust agent.

Formulation Example 4. Wettable powder 40 parts of TBTO, 20 parts of N-290K, 56 parts of clay, 3 parts of sodium lauryl alcohol sulfonate and 1 part of polyvinyl alcohol were uniformly mixed in a mixer and ground by a hammer mill to obtain a wettable powder.

Formulation Example 5. Paint Xylazane B 10 parts, N-290K 20 parts, perlite powder 20
Part, vinyl resin 10 parts, pine resin 25 parts and xylene 35
The parts were uniformly mixed to obtain a paint.

Formulation Example 6. Aerosol 1 part of diclofluanid, 1 part of N-290K and 0.5 part of fragrance are dissolved in 40 parts of deodorizing kerosene and filled into an aerosol container, and after installing a valve, 58 parts of liquefied petroleum gas is pressurized to fill the aerosol. Obtained.

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Claims (1)

[Claims] 1. One or more compounds selected from the group (A) consisting of tris- (N-cyclohexyldiazeniumdioxy) -aluminum and N-cyclohexyldiazeniumdioxy) -potassium, A rot fungus control agent , characterized by containing sodium dioctyl sulfosuccinate (B).