JPS624794A - Fungicidal composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a novel mold remover.

[Conventional technology and problems]

Black stains on bathroom ceilings, tile joints, plastic walls, and triangular corners in the kitchen cannot be removed with cleansers or activators alone, so currently we are using a spray mold remover that uses hypochlorite. is covered.

Furthermore, most of the mold removers published in the patents so far use chlorine bleaches such as hypochlorite. The reason for this is that peroxides such as hydrogen peroxide have weak bleaching blades and cannot completely remove mold pigments. On the other hand, mold removers using hypochlorite have excellent performance, but are highly dangerous to the eyes and skin, and spray-type ones are especially unsuitable for removing mold from ceilings and the like. Furthermore, it has a strong chlorine odor, making it difficult to use it in small bathrooms.

[Means for solving problems]

The present inventors had previously discovered that hydrogen peroxide or a peroxide that generates hydrogen peroxide in an aqueous solution is effective as a mold removal agent, but they have conducted extensive research to further enhance the effect. As a result, by combining hydrogen peroxide or a peroxide that generates hydrogen peroxide in an aqueous solution with an activator and peroxysulfate, it is possible to combine peroxide, peroxydisulfate alone or peroxide and an activator. discovered that the combination of peroxide and peroxysulfate improved performance and completed the present invention.

That is, the present invention provides a mold remover composition characterized by containing hydrogen peroxide or a peroxide that generates hydrogen peroxide in an aqueous solution, an activator, and a beroxysulfate.

Peroxides that generate hydrogen peroxide in an aqueous solution used in the present invention include organic and inorganic hydrogen peroxide adducts such as sodium carbonate/hydrogen peroxide adduct, sodium tripolyphosphate/hydrogen peroxide adduct, Sodium birophosphate
Hydrogen peroxide adduct, urea/hydrogen peroxide adduct, or 4N
Examples include azSOa・2■20□・NaCl double salt. Also, sodium perborate monohydrate, sodium perborate. There are inorganic peroxides such as tetrahydrate, sodium peroxide, and calcium peroxide. Among these, especially sodium carbonate/hydrogen peroxide adduct, 4NazSO4・2H20□・N
Preferred are aCl double salt, sodium perborate monohydrate, and sodium perborate tetrahydrate. These may be used alone or in combination of two or more.

The amount of hydrogen peroxide or organic or inorganic peroxide that generates hydrogen peroxide in an aqueous solution is 0.5 to 95%.
(% is weight %, the same applies hereinafter) is preferable, more preferably 5 to 90%, particularly preferably 30 to 90%.

Further, as the activator used in combination with these, a compound that reacts with hydrogen peroxide or peroxide in an aqueous solution to produce an organic peracid or a bleaching active species can be used. The activator used in the present invention includes nitriles such as acetonitrile, malononitrile, phthalonitrile, benzoyliminodiacetonitrile, glucose pentaacetate, octaacetyl sucrose, triacetin, sorbitol hexaacetate, pentaerythritol tetraacetate, acetoxyhenzenesulfonic acid. salts or O-acetylated products such as triacetyl cyanuric acid, methyl chloroformate, N, N, N", N"
-Tetraacetylethylenediamine, or tetraacetylglycoluril, N-hendiylimidazole, di-N-acetyldimethylglyoxime, ■-phenyl-3-acetylhydantoin, N,N-diacetylaniline, N-acetyldiglykolimide, diacetylmethylene N-acylated products such as diformamide, and phthalic anhydride, succinic anhydride, benzoic anhydride, glutaric anhydride,
Acid anhydrides such as alkyl sulfate anhydrides, anhydrides of carboxylic and organic sulfonic acids, sulfonyloximes such as di(methanesulfonyl)dimethylglyoxime, acylated phosphates such as di-ethylbenzoyl phosphate, phenyl Examples include sulfonate esters, organic phosphoric acid azides such as diphenylphosphinic azide, disulfones such as diphenyldisulfone, and others such as N-sulfonylimidazole, cyanamide, and halogenated triazines. Preferably acetonitrile, phthalonitrile, glucose pentaacetate, pentaerythritol tetraacetate, triacetin, N,N,N',N'-tetraacetylethylenediamine, tetraacetylglycoluril, phthalic anhydride, succinic anhydride, benzoic anhydride, anhydride It is glutaric acid. These activators can be used alone or in combination of two or more.

The content of the activator in the composition is preferably 0.1 to 70%, more preferably 1 to 50%.

Examples of peroxydisulfate include sodium peroxydisulfate, potassium peroxydisulfate, and ammonium peroxydisulfate, among which sodium peroxydisulfate, potassium peroxydisulfate, and ammonium peroxydisulfate are most preferred. These are one or two types
More than one species can be used in combination.

The amount of peroxydisulfate in the composition is preferably 1 to 95%, more preferably 5 to 90%, particularly preferably 30 to 90%.

The effect of the mold removal composition of the present invention can be further enhanced by adding a buffer for adjusting the pH.

These buffers include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, ammonium hydroxide, amine derivatives such as mono-, di-, and triethanolamine, and alkali metal hydroxides such as sodium carbonate and potassium carbonate. Carbonates, ammonium carbonates, etc., alkali metal orthophosphates such as sodium orthophosphate, potassium orthophosphate, orthophosphates such as ammonium orthophosphate, alkali metal silicates such as sodium silicate, potassium silicate, silicic acids such as ammonium silicate. Salt etc. can be used.

The pH adjuster may be used in an amount that adjusts to pl+ that provides the optimum effect depending on the type of peroxide used.

Furthermore, if necessary, alkali metals such as sodium chloride, potassium chloride, lithium chloride, ammonium chloride, sodium bromide, potassium bromide, lithium bromide, ammonium bromide, or ammonium halides, sodium sulfate, potassium sulfate, lithium sulfate. or alkali metal bicarbonates such as ammonium sulfate, sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, ammonium bicarbonate, alkali pyrophosphates such as sodium pyrophosphate, potassium pyrophosphate, lithium pyrophosphate. Metal salts, alkali metal salts of tripolyphosphate such as ammonium pyrophosphate, sodium tripolyphosphate, potassium tripolyphosphate, and lithium tripolyphosphate, alkali metal condensed phosphates such as ammonium tripolyphosphate, or ammonium salts can be used.

If necessary, activators such as anionic activators, nonionic activators, cationic activators, and zwitterionic activators can be added to the various compositions of the present invention.

Examples of anionic activators include sulfate ester salts of higher alcohols having 10 to 22 carbon atoms, carboxylic acid salts having 10 to 22 carbon atoms, α-olefin sulfonates having 10 to 22 carbon atoms, and alkyl groups having 10 to 22 carbon atoms. C 10-22 paraffin sulfonate, C 10-22 higher alcohol ethylene oxide adduct (added mole number: 1-100) sulfuric ester, C 8-22 Examples include sulfuric esters of alkylphenols and polyethylene glycol ethers having an alkyl group.

Examples of nonionic activators include higher alcohol poly(polymerization degree = 3 to 100) having a straight chain or branched chain having 10 to 22 carbon atoms, ethylene glycol ether, and ethylene glycol ether having 1 carbon number.
Poly(degree of polymerization: 3-100) ethylene glycol ester of carboxylic acid having 0 to 22 carbon atoms, alkylphenol poly(degree of polymerization: 3 to 10) having an alkyl group having 8 to 22 carbon atoms
0) Ethylene glycol ether etc. can be exemplified.

In addition, if necessary, solubilizing agents such as sodium p-toluenesulfonate, sodium xylene sulfonate, and urea, aluminum silicate such as montmorillonite, magnesium silicate such as sepiolite and attapulgite, abrasives such as calcium carbonate and silicon dioxide, and pigments. , dyes, fragrances, etc. can be added.

When using the mold remover of the present invention, if necessary, the composition is added to water to a concentration of 0.5 to 50%, preferably 1 to 30%, and made into a solution, slurry, or paste. It is desirable to spray or spray it on the target surface immediately. To give a more specific example, in use, it is recommended that the effective oxygen concentration be 0.1 to 10%, preferably 0.2 to 6%, pi is 7.
-13 is suitable, and 8-11 is more preferable.

〔Effect of the invention〕

The mold remover composition of the present invention has no peculiar chlorine odor, and even if mixed with an acidic cleaning agent by mistake, there is no risk of generating chlorine gas, so it can be used with confidence.
1 [Examples] The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples.

Mold removal rate: The mold removal rate is based on Cladosporium herbalum (Cla.
dosporium herbarum) and inoculated with 3
0℃.

A clay plate cultured for 14 days was used as a model mold plate, and the reflectance was measured before and after treatment.

(Calculation formula) % formula % RO is the provisional reflectance of the unglazed pottery before mold inoculation R5 is the reflectance of the mold plate before treatment R- is the reflectance measurement of the mold plate after treatment Model name Manufactured by Nippon Denshoku Industries Co., Ltd. NDR-101DP Color Difference Meter Example 1 A composition obtained by adjusting the formulation shown in Table 1 was sprayed onto a mold plate, and the mold removal rate was measured after 15 minutes.

The pil was adjusted to 10.0 with Na011 in both cases.

Table 1 ((1)*l TAG; Tetraacetyl glycoluril 12 B is an abbreviation for balance (■ where the whole is 100) Example 2 The composition obtained by adjusting the formulation shown in Table 2 was It was sprayed on the mold and left for 30 minutes, and then the mold removal ability was sensory evaluated.

In inventions 2 to 5, mold was removed without leaving any mold.

Table 2

Claims (1)

[Scope of Claims] 1. A mold removal composition characterized by containing the following (1) to (3). (1) Hydrogen peroxide or a peroxide that produces hydrogen peroxide in an aqueous solution (2) An activator (3) Peroxydisulfate 2. The peroxide that produces hydrogen peroxide in an aqueous solution is sodium carbonate.・Hydrogen peroxide adduct, 4Na_2SO_4・2H_2O_2・NaCl double salt,
The mold removal composition according to claim 1, which is one or more selected from the group consisting of sodium perborate monohydrate and sodium perborate tetrahydrate. 3. The activator is acetonitrile, phthalonitrile, glucose pentaacetate, pentaerythritol tetraacetate, triacetin, N,N,N',N'-tetraacetylethylenediamine, tetraacetylglycoluril, phthalic anhydride, succinic anhydride, One or two selected from the group consisting of benzoic anhydride and glutaric anhydride
2. The mold-killing composition according to claim 1, wherein the mold-killing composition is of at least one species. 4. The mold removal composition according to claim 1, wherein the peroxydisulfate is one or more selected from the group consisting of sodium peroxydisulfate, potassium peroxydisulfate, and ammonium peroxydisulfate. .