JPH07100767B2 - Antifungal bactericidal paint composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a fungicide bactericidal coating composition.

<Prior Art> It has already been clarified that molds that occur in buildings, particularly kitchens and bathrooms, affect the human body, and various studies have been conducted on mold inhibitors that prevent molds. There is.

However, many of the conventional fungicides have been investigated such as chemicals having a bactericidal effect against fungi, or generally, methods for suppressing the conditions such as temperature, humidity, nutrients, oxygen, etc. in which fungi are generated. Only. That is, most of the development of antifungal agents having a preventive effect or a bactericidal effect against the fungus finally generated, was examined on the point that the microorganisms before the fungus adheres to the building etc. At present, there is no known antifungal agent.

Further, in the conventional antifungal agent, spraying or coating is performed, and a hydrophilic antifungal agent that is used by adhering to the object to be treated has little adhesion to the object to be treated, and thus has a long-term antifungal effect. I can't expect. Further, since ordinary fungicides have a small bactericidal effect, there is a drawback that the base of the object to be treated has to be sterilized in advance and the work becomes complicated. Hydrophobic antifungal agents are also known, but the hydrophobic antifungal agent has a drawback that it is ineffective against Gram-negative bacteria such as Pseudomonas bacteria which occur in places where much water is used. There is.

On the other hand, dichlorofluanid and the like are known as antifungal agents which show excellent effects when mixed with a paint. However, conventionally, a mixture of a paint and an antifungal agent has poor storage stability, so it is necessary to mix it immediately before applying it to the object to be treated, and when it is not uniformly mixed at the time of application, it is necessary to apply it. There is a drawback that post-peeling occurs.

<Problems to be Solved by the Invention> An object of the present invention is to have a bactericidal action and an antifungal action at the same time, and to have excellent adhesiveness to an object to be treated, and to obtain an antifungal effect for a long period of time. An object of the present invention is to provide a fungicidal germicidal coating composition.

Still another object of the present invention is to provide a fungicidal antibacterial coating composition having excellent storage stability.

<Means for Solving the Problems> According to the present invention, an antifungal bactericidal composition having an antifungal agent and a fungicidal action containing β-phenoxyethanol and having a bactericidal action, a coating, and the antifungal bactericidal composition and There is provided a fungicidal disinfectant coating composition comprising a water repellent agent that imparts water repellency to an obtained coating film without allowing the coating material to separate from the object to be treated during curing.

The present invention will be described in more detail below.

In the antifungal bactericidal composition used in the present invention, β-phenoxyethanol contained as an essential component acts on various components mixed in the antifungal bactericidal coating composition as a solvent, and, for example, to a conventional bactericide. It is a kind of highly safe glycol ether having excellent bactericidal action against Pseudomonas aeruginosa, which is known to have strong resistance to deodorant and deodorizing action against unpleasant odor, It is a substance that exhibits excellent compatibility when the composition and paint are mixed. The blending ratio of the β-phenoxyethanol is preferably 1 to 10% by weight, and particularly preferably 2 to 5% by weight in the antifungal bactericidal coating composition. If the blending ratio is less than 1% by weight, excellent bactericidal action against bacteria is not exhibited, and further, compatibility is deteriorated when mixing paints, which is not preferable. On the other hand, if it exceeds 10% by weight, the drying property is poor, the viscosity is excessively increased, and the workability is remarkably reduced, which is not preferable.

In the antifungal bactericidal composition used in the present invention, the antifungal agent contained as an essential component has no toxicity to the human body,
And, if it is a known antifungal agent having a growth-preventing effect and / or bactericidal effect against mold, it is not particularly limited, for example, a bactericidal component, a component that inhibits the growth of bacteria or fungi (mold), a solvent. Well-known antibacterial and antifungal agents dissolved in can be used. As the bactericidal component, a component for inhibiting the growth of bacteria or fungi (mold), 2- (4-thiazolyl) benzimidazole, N, N-dimethyl-N '
-Phenyl-N '-(fluorodichloromethylthio) sulfoamide, 1-[(diiodomethyl) sulfonyl]-
A publicly known and confirmed safe compound selected from the group consisting of 4-methylbenzene, dichlorofluanide, dichlorophenyl and mixtures thereof can be preferably used. The amount of the component used may be at least the minimum effective concentration of each component, and is 0.
It can be used in the range of 3 to 5% by weight, and particularly preferably in the case of 2- (4-thiazolyl) benzimidazole.
0.3-1% by weight, N, N-dimethyl-N'-phenyl-N '
1-2% by weight in the case of-(fluorodichloromethylthio) sulfoamide, 1-[(diiodomethyl) sulfonyl]
In the case of -4-methylbenzene, dichlorophenyl or dichlorofluoranide, it is preferably 0.3 to 2% by weight.
At this time, if it is less than 0.3% by weight, the desired sterilization or growth inhibition effect may not be obtained, which is not preferable.

The quaternary ammonium salt that can be contained as necessary in the antifungal bactericidal composition used in the present invention is a component that prevents the generation of static electricity and has a bacterial effect on microorganisms. The quaternary ammonium salt is not particularly limited as long as it has an antistatic action and a bacterial action and is compatible with other components in the antifungal bacterial composition, and for example, octyltrimethyl. Ammonium chloride, decyltrimethylammonium chloride,
Alkyltrimethylammonium salts such as dodecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, octadecyltrimethylammonium chloride, octadecenyltrimethylammonium chloride, octadecadienyltrimethylammonium chloride; dioctyltrimethylammonium chloride, dioctyltrimethylammonium chloride Decyltrimethylammonium chloride, didodecyltrimethylammonium chloride, ditetradecyltrimethylammonium chloride, dihexadecyltrimethylammonium chloride, dioctadecyltrimethylammonium chloride, dioctadecenyltrimethylammonium chloride, dioctadecadienyl trimethyl Can be preferably exemplified Le ammonium chloride dialkyl dimethyl ammonium salts such as chloride, etc., in use, it can be used alone or as a mixture. It is also possible to use a commercially available product, for example, product names “ARQUD C-50” and “ARQUD S-
50 "," Armostat 310 "," Armostat 410 "
(Manufactured by Lion Akzo Co., Ltd.) and the like can be preferably used. The content of the quaternary ammonium salt in the antifungal bactericidal coating composition is preferably 10% by weight or less, and more preferably 1 to 5% by weight.

To prepare the antifungal bactericidal composition used in the present invention, the β-phenoxyethanol, an antifungal agent, and optionally a quaternary ammonium salt, for example, sterilization of isopropanol, ethanol, etc., for disinfection It can be obtained by dissolving and mixing in a solvent and / or an organic solvent such as xylene, xylol, acetone and mineral spirit, preferably in a heated state at 28 to 45 ° C. At this time, it is not always necessary to use the solvent, and preferably it can be used in the range of 0 to 96% by weight based on the antifungal sterilizing composition.

Water repellent used in the present invention, for example, wood, concrete,
When applied to mortar, blocks, bricks, unglazed tiles, plastics, etc., it penetrates deeply into the inner surface, and after evaporation of the solvent forms a gel layer along the capillary wall and surface of the object to be treated. Therefore, a material known to impart a waterproof effect having excellent weather resistance and stain resistance can be used. For example, a mixture of a waterproof component such as an epoxy resin and a polyamide resin and a solvent (trade name "Chemist" (manufactured by Mitsui Kasansan Co., Ltd.)), a silane-based water repellent such as dimethyl silicone oil, methylhydrogen poly Known water repellents such as siloxane and methylphenyl silicone oil can be mentioned (trade name "KF
96L "," KF99 "," KP360 "," KF96 "," KF96H ",
"KF69", "KF92", "KC89", "TSF437", "TSF48"
4 "," TSF483 "(Made by Shin-Etsu Chemical Co., Ltd.)
etc). By incorporating a water repellent known to exhibit such an action into the antifungal bactericidal coating composition of the present invention,
A water repellent adheres to the molecules of the antifungal sterilizing composition, prevents peeling of the antifungal bactericidal composition that occurs over time after being applied to an object to be treated, and makes the resulting coating film water repellent. Can be given. Further, the mixing of the water repellent with the antifungal sterilizing coating composition can be easily carried out by coexistence of β-phenoxyethanol in the antifungal sterilizing composition.

The content of the water repellent is preferably 2 to 50% by weight, and particularly preferably 2 to 20% by weight, based on the entire antifungal sterilizing coating composition. When the content ratio is less than 2% by weight, the above-mentioned effect of the water repellent cannot be obtained, and the content is 50% by weight.
If it exceeds, it is not preferable because it cannot be sufficiently mixed with the antifungal sterilizing coating composition.

The paint used in the antifungal sterilizing paint composition of the present invention,
Any oil-based or water-based paint other than the known vinyl chloride-based paint that is usually used for buildings and the like may be used, and specifically, for example, vinyl acetate-based paint, synthetic resin emulsion paint, acrylic resin emulsion paint, alkite resin paint, etc. It can be preferably mentioned. The content ratio of the coating material is preferably 10 to 95% by weight, based on the entire antifungal sterilizing coating composition.
It is particularly preferable that the range is 70 to 90% by weight.

To prepare the antifungal bactericidal coating composition of the present invention, for example, first, after preparing by dissolving and mixing the antifungal bactericidal composition described above, preferably heated to 28 ~ 45 ° C. to be mixed into the paint, then Method obtained by adding a water repellent and dissolving and mixing, or a water repellent is previously contained in the antifungal sterilizing composition, then a method of heating and mixing at 28 to 45 ℃ preferably And the like. Since the obtained antifungal bactericidal coating composition of the present invention contains β-phenoxyethanol, the water repellent can be dissolved at a low temperature and can be stably stored for a long period of time.

The antifungal bactericidal coating composition of the present invention can be applied by brushing or spraying the object to be treated in the same manner as in ordinary paints.

<Effects of the Invention> The antifungal bactericidal coating composition of the present invention has β-phenoxyethanol and a water repellent, and therefore has excellent compatibility between the antifungal agent component and the coating component, and excellent adhesion to the object to be treated. It has properties and can be expected to have a long-term antifungal effect.

<Examples> The present invention will be described in more detail with reference to Examples below, but the present invention is not limited thereto.

Production Example 1 20 parts by weight of β-phenoxyethanol, 970 parts by weight of isopropyl alcohol, 4 parts by weight of 2- (4-thiazolyl) benzimidazole and 6 parts by weight of dichlorofluanid are dissolved and mixed at room temperature to prepare an antifungal composition. did.

Production Example 2 60 parts by weight of β-phenoxyethanol was added to a mixed solution of 500 parts by weight of isopropyl alcohol and 275 parts by weight of xylene, and heat-polymerized at 35 ° C. Then, 6 parts by weight of 2- (4-thiazolyl) benzimidazole, 14 parts by weight of dichlorofluanid and 5 parts by weight of dichlorophenyl were added and mixed, and then several kinds of waterproof components such as acrylic resin known as a water repellent agent were used. Product name "Chemistop" consisting of solvent and solvent
120 parts by weight (manufactured by Mitsui Sangyo Co., Ltd.) and 20 parts by weight of "Arcard C50" (manufactured by Lion Co., Ltd.) as a quaternary ammonium salt are added and mixed to obtain a mixture of a fungicide-proof composition and a water repellent. Was prepared.

Example 1 520 parts by weight of isopropyl alcohol was mixed with 190 parts by weight of xylene and 100 parts by weight of β-phenoxyethanol, and 5
After heating at 0 ° C., 10 parts by weight of 2- (4-thiazolyl) benzimidazole, 25 parts by weight of dichlorofluanid, and 25 parts by weight of dichlorophenyl were dissolved and mixed to prepare an antifungal bactericidal composition. . Then, 120 parts by weight of dimethyl silicone oil (trade name "KC89") which is a water-repellent agent at room temperature and 10 parts by weight of methylphenyl silicone oil (trade name "KP 360") (above, Shin-Etsu) Chemical Industry Co., Ltd.) was added and mixed to obtain the composition 200.
By weight, acrylic synthetic paint (trade name "Shintop GP
P4-401 "(manufactured by Shinto Paint Co., Ltd.) was added to 800 parts by weight and stirred for 30 minutes so as to form a uniform phase, to prepare an antifungal bactericidal paint composition. The composition obtained was one in which the antifungal bactericidal composition was uniformly dissolved in the paint.

Example 2 After the walls and ceiling of a food factory that uses a large amount of water in which mold has already been generated are washed with a mold removal solution containing sodium hypochlorite, the mold bactericidal paint composition prepared in Example 1 The product was applied at a rate of 220 g / m ² . For comparison,
A commercially available antifungal paint containing no β-phenoxyethanol (trade name “Bathroom antifungal paint” manufactured by Asahi Pen Co., Ltd.) was applied under the same conditions, and the mold generation state was observed. The results are shown in Table 1. In addition, in the commercially available anti-mold paint,
Along with the generation of mold, peeling of the paint was also recognized.

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Claims (2)

[Claims] 1. A fungicidal sterilizing composition containing a fungicide and β-phenoxyethanol for preventing the generation of fungi and having a bactericidal action, a paint, and the fungicidal sterilizing composition and the paint are separated from an object to be treated during curing. A fungicidal sterilizing coating composition comprising a water-repellent agent which imparts water repellency to a coating film obtained without being applied. 2. The antifungal bactericidal coating composition according to claim 1, wherein the antifungal bactericidal composition contains a quaternary ammonium salt.