JP2000186001A - Antimicrobial/fungicidal composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition which has controlled adverse effects on human body, can be safely used, and effectively works against a variety of microorganisms and mold by including an antimicrobial/fungicidal ingredient, a synthetic resin and a specific solvent. SOLUTION: This composition contains (A) an antimicrobial/fungicidal ingredient, e.g. 2-(4-thiazolyl)benzimidazole, at 0.2 to 3.0 wt.%, preferably 2.4 to 2.6 wt.%, (B) a synthetic resin, e.g. a mixture of a polyamide resin and a solvent, as a component which helps the composition fast attached to a structure and the antimicrobial/fungicidal function sustained for a prolonged period, at 10.0 to 20.0 wt.%, preferably 13.0 to 16.0 wt.%, and (C) (i) a mixture of a lactate ester, e.g. butyl lactate, and, as required, another solvent, e.g. 2-phenoxyethanol, at 35 to 72 wt.%, preferably 45 to 55 wt.%. The component (i) is contained in the composition preferably at 10 wt.% or more, more preferably 13 to 40 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to a fungicidal / fungicidal composition capable of suppressing harm to the human body and effectively carrying out fungicide / fungus control.

[0002]

2. Description of the Related Art Bacteria that grow on buildings such as houses include fungi such as soil bacteria that do not require special nutrients, staphylococci that occur even in dry places, and bacteria such as Bacillus and Serratia. A wide variety of fungi have emerged and are growing. Conventionally, various antibacterial and antifungal agents for preventing and sterilizing such various bacteria have been proposed. Usually, the antifungal agent is a method of diluting the antifungal agent component in an organic solvent and spraying or applying the same. In such a method, the duration of efficacy is not sufficient, and In reality, adverse effects on the human body are unavoidable due to spraying and air diffusion of an organic solvent or the like after application. In recent years, environmental issues have been emphasized, and it has been desired to develop a fungicide / fungicide that can suppress the adverse effect on the human body as much as possible and can maintain its effect for a long period of time.

[0003]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a fungicidal and fungicidal composition which can be used safely and has an effective action against various bacteria and fungi, with its adverse effects on the human body being suppressed. To provide.

[0004]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, by including lactic acid ester as a solvent of the antibacterial and antifungal agent component,
It has been found that the harmful effects on the human body can be reduced, and an antibacterial and antifungal effect can be obtained effectively. That is, according to the present invention, there is provided a fungicide / fungicide composition comprising a fungicide / fungicide component, a synthetic resin, and a solvent containing a lactic acid ester.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The fungicidal / fungicidal composition of the present invention contains a fungicidal / fungicidal component, a synthetic resin, and a specific solvent as essential components.

[0006] Bactericidal and fungicides include bacteria, fungi (molds).
No particular limitation is imposed as long as it inhibits the growth of, or sterilizes. Usually, it is preferable to use those which are not considered to be toxic to the human body. Specifically, 2- (4-thiazolyl) benzimidazole, N, N-dimethyl-N′-
Examples include phenyl-N '-(fluorodichloromethylthio) sulfonamide, 1-((diiodomethyl) sulfonyl) -4-methylbenzene, dichlorofluanid, dichlorophenyl, and mixtures thereof. Also, octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, octadecyltrimethylammonium chloride,
Octadecenyltrimethylammonium chloride, octadecadienyltrimethylammonium chloride,
Dioctyltrimethylammonium chloride, didecyltrimethylammonium chloride, didodecyltrimethylammonium chloride, ditetradecyltrimethylammonium chloride, dihexadecyltrimethylammonium chloride, dioctadecyltrimethylammonium chloride, dioctadecenyltrimethylammonium chloride, dioctadecazi Alkyl methyl ammonium chloride such as enyl trimethyl ammonium chloride can be used. These are commercially available product names "ARQUAD C-50", "AR
QUD S-50 "(manufactured by Lion Akzo Co., Ltd.) or the like can be used.

In the insect-controlling composition of the present invention, the proportion of the fungicide / fungicide can be appropriately selected according to the kind of fungicide / fungicide and the like. It can be used in the required amount. Preferably from 2.0 to 3.0% by weight in the composition, particularly preferably from 2. to 3.0% by weight.
It can be blended in the range of 4 to 2.6% by weight.

The synthetic resin used in the antibacterial and fungicide composition of the present invention is a component that fixes the composition to a construct and acts to maintain the antibacterial and antifungal action for a long period of time.
Usually, resins and the like used for oil-based or water-based paints other than known vinyl chloride-based paints used for buildings and the like can be used. For example,
Examples thereof include an epoxy resin, a polyamide resin, an alkyd resin, a vinyl acetate resin, an acrylic resin, and a petroleum resin, and when used, can be blended as an oil-based or water-based paint containing a solvent. In addition, it is preferable to use a resin having a water-repellent action for the purpose of preventing peeling or the like after fixing the insect-controlling composition to the object to be coated. For example, silane-based water repellents such as dimethylsilicone oil, methylhydrogenpolysiloxane, and methylphenylsilicone oil (trade name "Tosbarrier" (Toshiba Silicon Co., Ltd., silane-based silicone resin), trade name "Aqua Seal" (Sumitomo) Seika Chemicals, alkyl siloxane resin); epoxy resin,
A mixture of a polyamide resin and a solvent (trade name “Chemistop”, manufactured by Mitsui Chemicals, Inc.) can be used. In the fungicidal / fungicidal composition of the present invention, the compounding ratio of the synthetic resin can be appropriately selected in accordance with the type and the like of an amount capable of fixing the fungicidal / fungicidal composition to an object to be coated. In the case of blending a paint or a commercial product, this synthetic resin is usually in the range of 10.0 to 20.0% by weight, preferably 13.0 to 16.0% by weight in terms of synthetic resin.

The solvent to be added to the antifungal composition of the present invention contains a lactic acid ester as an essential solvent. This lactic acid ester is a very safe substance known as a food additive or flavoring, but it is known that it is excellently compatible with conventional fungicides and fungicides, insecticides, etc. Not. Examples of the lactate include alkyl lactates such as ethyl lactate, methyl lactate, and butyl lactate. As the solvent, lactate alone may be used, but usually,
Solvents used as antibacterial and antifungal agents and solvents contained as a coating material of the synthetic resin and the like are included. Examples of the solvent other than the lactic acid ester include ethanol, isopropyl alcohol, 2-phenoxyethanol, xylene,
Xylol, acetone, mineral spirit and the like. However, from an environmental point of view, it is preferable to minimize the amount of the organic solvent other than the lactic acid ester used. Further, in order to improve the compatibility between the antifungal agent component and the synthetic resin, it is preferable to use 2-phenoxyethanol. When the 2-phenoxyethanol is mixed, the mixing ratio is 1 to the total amount of the composition. 0.0 to 2.0% by weight
Is desirable.

The mixing ratio of the solvent to be added to the antibacterial and fungicide composition of the present invention can be appropriately determined according to the kind and the mixing ratio of the antibacterial and antifungal agent component and the synthetic resin. Usually 35-72% by weight in the composition, preferably 45-5%
5% by weight. The lactic acid ester is desirably incorporated in the composition in an amount of 10% by weight or more, preferably 13 to 40% by weight, in order to prevent aggregation of the antibacterial and fungicide components.

[0011] In addition to the above essential components, various additives used in the antibacterial and fungicide can be added to the antibacterial and antifungal composition of the present invention as required.

The fungicidal / fungicidal composition of the present invention is, for example,
It can be used in a method of contacting and fixing the structure to the object to be coated. The antibacterial and fungicide composition can be brought into contact with the object to be coated by, for example, spraying, coating, or the like, by performing natural drying or forced heating drying, and fixing with the compounded synthetic resin. Can be. The fixed amount is not particularly limited, and can be appropriately selected.

[0013]

The fungicidal / fungicidal composition of the present invention contains a fungicidal / fungicidal component, a synthetic resin, and a solvent containing a lactate ester having no toxicity to the human body as essential components. The adverse effect is suppressed, and it can be used safely and the antibacterial and antifungal action can be maintained for a long time.

[0014]

The present invention will be described in more detail with reference to the following reference examples and examples, but the present invention is not limited to these examples. Was measured solubility various solvents is 2- (4-thiazolyl) benzimidazole in Reference Example Bokinbo mold component. As a result, the solubility in lactate was 1.2 to 1.5%.
Was 0.7 to 0.8 for ethanol.
%, And isopropyl alcohol was 0.3 to 0.5%, indicating that the lactic acid ester was excellent in solubility in the antibacterial and antifungal agent components.

Example 1 As a fungicide and fungicide, 0.6 parts by weight of 2- (4-thiazolyl) benzimidazole and 2.1 parts by weight of dichlorofluanidide, and as a synthetic resin content, trade name "Cemistop"
15.0 parts by weight (manufactured by Mitsui Petrochemicals Co., Ltd.), 30.0 parts by weight of butyl lactate, 7.5 parts by weight of xylene, 44.0 parts by weight of isopropyl alcohol and 1.0 part by weight of 2-phenoxyethanol as a solvent. Was stirred and mixed at 40 ° C. to prepare a fungicidal and fungicide composition. The obtained antibacterial / fungicidal composition was sprayed on a common wall cloth surface of a cottage in Shuzenji-cho, Tagata-gun, Shizuoka Prefecture, dried and fixed, and the occurrence of mold was observed for 2 years. On the other hand, as a control, a commercially available antifungal cloth was stuck on a wall of the cottage having substantially the same environment, and observed similarly for 2 years. Table 1 shows the results. In the evaluation, no mold was generated, a slight mold was generated, and a mold was evaluated as x.

Example 2 0.6 (parts by weight) of 2- (4-thiazolyl) benzimidazole and 2.1 parts by weight of dichlorofluanid as a fungicide and a fungicide, and a trade name of "Cemistop" as a synthetic resin content.
15.0 parts by weight (manufactured by Mitsui Petrochemicals Co., Ltd.), 26.5 parts by weight of butyl lactate as a solvent, 8.0 parts by weight of Aqua Seal (trade name, manufactured by Sumitomo Seika Co., Ltd.), 47.0 parts by weight of isopropyl alcohol Parts and 2-phenoxyethanol 1.0
The mixture was stirred and mixed with 40 parts by weight at 40 ° C to prepare a fungicidal and fungicide composition. The obtained antibacterial / fungicidal composition was sprayed and dried and fixed on the ordinary wall cloth surface of an apartment in Motoazabu, Minato-ku, Tokyo, and the occurrence of mold was observed for 2 years. On the other hand, as a control
A commercially available antifungal cloth was attached to a wall of the apartment, which had almost the same environment, and observed similarly for two years. Table 1 shows the results. The evaluation was performed in the same manner as in Example 1.

Example 3 The fungicidal and fungicidal composition prepared in Example 2 was sprayed onto a part of a diorama wall in Urayasu City, Chiba Prefecture, dried and fixed, and the occurrence of mold was observed for 3 years. On the other hand, the control observed about the diorama wall in which the antibacterial and fungicide composition was not applied. The evaluation was performed in the same manner as in Example 1. Table 1 shows the results.

[0018]

[Table 1]

[0019] Example 4 Bokinbo antifungal agents, 2- (4-thiazolyl) and benzimidazole 1.0 part by weight of dichloro full biguanide 1.5 parts by weight, trade name synthetic resin component containing product "Chemi stop"
50.0 parts by weight (manufactured by Mitsui Petrochemicals Co., Ltd.), 46.5 parts by weight of ethyl lactate and 1.0 part by weight of 2-phenoxyethanol as a solvent are stirred and mixed at 40 ° C. to form a fungicidal and fungicide composition. Was prepared. The obtained antibacterial and fungicide composition was applied to the outer wall of a house in Sakura City, Chiba Prefecture. Since this outer wall was contaminated with algae and black yeast, the construction was carried out by applying the antibacterial / fungicide composition after washing and drying. Mold development was observed for 2 years. On the other hand, as a control, when only the outer wall was washed, after mold washing, sterilization treatment with benzalkonium chloride was performed, and three controls of commercially available antifungal paints were similarly observed for mold generation for 2 years. Table 2 shows the results.

[0020]

[Table 2]

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08K 5/3445 C08K 5/3445 5/435 5/435 C08L 101/00 C08L 101/00 F term (reference) 4H011 AA02 AA03 BA01 BA03 BB10 BC06 BC19 DA23 DE17 DH06 DH30 4J002 AA001 BF001 BG001 CD001 CL001 EB126 EH037 EN136 EU116 EV286 FD186 FD207 HA05

Claims (2)

[Claims] 1. A fungicidal / fungicidal composition comprising a fungicidal / fungicidal component, a synthetic resin, and a solvent containing a lactic acid ester. 2. The fungicidal and fungicide composition according to claim 1, wherein the content of the lactic acid ester is at least 10% by weight based on the total amount of the composition.