JP2002035098A - Deodorant composition and deodorant adhesive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorant composition which can realize excellent deodorization performance at a low cost. SOLUTION: This deodorant composition contains (A) at least one kind selected from hydrazides, azoles and azines and (B) at least one kind selected from urea and its derivative as effective components, and is prepared by compounding 0.05 to 10 pts.wt the component (A) described above with 1 pt.wt. the component (B) described above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a composition having a deodorizing property. More specifically, the present invention relates to a deodorant composition and a deodorant adhesive capable of efficiently removing aldehydes such as acetaldehyde and formaldehyde, which are malodorous components.

[0002]

2. Description of the Related Art In recent years,
With the remarkable improvement in living standards, more comfortable living and working environments are required. For example, one of the causes of the increasing anti-smoke movement is that a large number of odor components such as acetaldehyde, ammonia, trimethylamine, mercaptan, and hydrogen sulfide contained in cigarette smoke can cause hair, clothing, indoor walls, furniture, It adheres to the interior of vehicles such as carpets, automobiles, and trains, and remains as an odor.
Further, in a recent newly built house, a building material impregnated or coated with a chemical substance such as formaldehyde is frequently used, and the chemical substance is vaporized and dispersed in a large amount, resulting in a bad smell. As a deodorant for removing such malodorous components, the present inventors have proposed a deodorant containing at least one selected from hydrazides, azoles and azines as an active ingredient.

[0003] The above-mentioned deodorants have good adsorption ability to formaldehyde and the like, exhibit excellent malodor component removing effect and are useful, but are expensive compounds such as hydrazides, azoles and azines. Has a drawback that the agent itself is expensive. In addition, deodorants containing hydrazides, azoles and azines as active ingredients show good deodorant activity even at a relatively low concentration, but the adsorption performance is constant even if the amount is simply increased. There was a problem that it did not improve above the level.

[0004]

Means for Solving the Problems Accordingly, the present inventors have
As a result of intensive studies on a composition having a good deodorizing activity even in a small amount, we focused on urea and its derivatives. In general, urea derivatives such as urea and ethylene urea are known to have formaldehyde adsorption ability, but their adsorption effect is not sufficiently high. In this regard, the present inventors,
The present inventors have found that by using hydrazides and the like and ureas and the like in combination, an excellent deodorizing effect that cannot be expected when each is used alone is exhibited, and thus completed the present invention.

That is, the present invention relates to (A) at least one of hydrazides, azoles and azines.
A deodorant composition comprising, as active ingredients, at least one selected from the group consisting of a seed and (B) urea and a derivative thereof, wherein the component (A) is added in an amount of 0.1 part by weight to the component (B). The present invention relates to a deodorant composition containing from 0.05 to 10 parts by weight. Further, the present invention provides a deodorant composition comprising (A) at least one selected from hydrazides, azoles and azines, and (B) at least one selected from urea and its derivatives as active ingredients. Further, the present invention relates to a deodorant composition comprising the component (A) in an amount of 0.2 to 4 parts by weight per 1 part by weight of the component (B). Further, the present invention provides
(A) A deodorant composition comprising as active ingredients at least one selected from hydrazides, azoles and azines, and (B) at least one selected from urea and derivatives thereof, The present invention relates to a deodorant composition comprising 1 to 4 parts by weight of the component (A) per 1 part by weight of the component. Further, the present invention relates to the deodorant composition wherein the component (B) contains ethylene urea. In addition, the present invention relates to a deodorant adhesive obtained by mixing 1 to 15 parts by weight of any one of the deodorant compositions with 100 parts by weight of an adhesive polymer material.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION <Composition of Deodorant> In the deodorant composition of the present invention, (A) at least one selected from hydrazides, azoles and azines (hereinafter simply referred to as component (A)) Is used as an active ingredient. Examples of the hydrazides include a monohydrazide compound having one hydrazide group in a molecule, a dihydrazide compound having two hydrazide groups in a molecule, and a polyhydrazide compound having three or more hydrazide groups in a molecule. Can be.

Specific examples of the monohydrazide compound include:
For example, in the general formula _{R-CO-NHNH 2 (1} ) [wherein, R represents an aryl group which may have a hydrogen atom, an alkyl group or a substituent. A monohydrazide compound represented by the formula: In the general formula (1), examples of the alkyl group represented by R include a methyl group, an ethyl group, an n-propyl group, an n-butyl group,
-Pentyl group, n-hexyl group, n-heptyl group, n-
Examples thereof include linear alkyl groups having 1 to 12 carbon atoms such as an octyl group, an n-nonyl group, an n-decyl group, and an n-undecyl group. Examples of the aryl group include a phenyl group, a biphenyl group, and a naphthyl group.
Of these, a phenyl group is preferred. Examples of the substituent of the aryl group include a hydroxyl group, a halogen atom such as fluorine, chlorine, and bromine, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, and a tert- group.
Examples thereof include a linear or branched alkyl group having 1 to 4 carbon atoms such as a butyl group and an iso-butyl group. More specifically, as the hydrazide compound of the above general formula (1), lauric hydrazide, salicylic hydrazide,
Examples include formhydrazide, acetohydrazide, propionic acid hydrazide, p-hydroxybenzoic acid hydrazide, naphthoic acid hydrazide, and 3-hydroxy-2-naphthoic acid hydrazide.

Specific examples of the dihydrazide compound include, for example, a general formula H ₂ NHN—X—NHNH ₂ (2) wherein X represents a group —CO— or a group —CO—A—CO—. A represents an alkylene group or an arylene group. And a dihydrazide compound represented by the following formula: In the general formula (2), examples of the alkylene group represented by A include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, and a nonamethylene group. And a straight-chain alkylene group having 1 to 12 carbon atoms such as a decamethylene group and an undecamethylene group. Examples of the substituent of the alkylene group include a hydroxyl group. Examples of the arylene group include a phenylene group, a biphenylene group, a naphthylene group, an anthrylene group, and a phenanthrylene group. Of these, a phenylene group, a naphthylene group, and the like are preferable. Examples of the substituent of the arylene group include the same substituents as those of the above-described aryl group. Specific examples of the dihydrazide compound represented by the general formula (2) include, for example, oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, adipic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecane diacid dihydrazide, and maleic acid. Dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydrazide, malic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, dimer acid dihydrazide, 2,6-naphthoic acid dihydrazide;
Basic acid dihydrazide and the like can be mentioned.

Specific examples of the polyhydrazide compound include polyacrylic hydrazide. Among these, dihydrazide compounds are preferred, dibasic dihydrazide is particularly preferred, and adipic dihydrazide is even more preferred. The above hydrazide compounds can be used alone or in combination of two or more.

As the azoles and azines, among known 5- or 6-membered heterocyclic compounds having two or three nitrogen atoms as hetero atoms, a compound having an -N-N- bond in the molecule. You can choose from things.

The azoles include, for example, diazoles, triazoles, thiadiazoles and the like, and diazoles and triazoles are preferably used. Specific examples of diazoles include, for example, 3-
Pyrazolones such as methyl-5-pyrazolone and 1,3-dimethyl-5-pyrazolone, pyrazole, 3-methylpyrazole, 1,4-dimethylpyrazole, 3,5-dimethylpyrazole and 3,5-dimethyl-1-phenyl Pyrazole, 3-aminopyrazole, 5-amino-3-methylpyrazole, 3-methylpyrazole-5-carboxylic acid,
Pyrazoles such as 3-methylpyrazole-5-carboxylic acid methyl ester, 3-methylpyrazole-5-carboxylic acid ethyl ester and 3,5-methylpyrazoledicarboxylic acid can be exemplified. Specific examples of triazoles include, for example, 1,2,3-triazole,
2,4-triazole, 3-n-butyl-1,2,4-
Triazole, 3,5-dimethyl-1,2,4-triazole, 3,5-di-n-butyl-1,2,4-triazole, 3-mercapto-1,2,4-triazole,
3-amino-1,2,4-triazole, 4-amino-
1,2,4-triazole, 5-amino-3-mercapto-1,2,4-triazole, 3-amino-5-phenyl-1,2,4-triazole, 3,5-diphenyl-1,2,2 4-triazole, 1,2,4-triazol-3-one, 1,2,4-triazole-3-carboxylic acid, 1-hydroxybenzotriazole, 1H-benzotriazole, 4-methyl-1H-benzotriazole, 5 -Methyl-1H-benzotriazole and the like.

The azines include, for example, diazines, triazines, pyridazines, etc. Among them, pyridazines can be preferably used. Specific examples of pyridazines include, for example, 6-methyl-8-hydroxytriazolopyridazine, 4,5-dichloro-3
-Pyridazine, maleic hydrazide, 6-methyl-3
-Pyridazone and the like. Among these, azoles are preferable, and triazoles such as 1,2,4-triazole and 1,2,3-triazole,
Pyrazoles such as 3,5-dimethylpyrazole, and 3-
Pyrazolones such as methyl-5-pyrazolone are particularly preferred. In the present invention, the azoles and azines may be used alone or in combination of two or more.

As the component (B) of the present invention, at least one selected from urea and urea derivatives is used. Examples of the urea derivative include compounds having a urea bond, for example, methyl urea, ethyl urea, dimethyl urea,
In addition to diethyl urea, guanyl urea, acetyl urea, thiourea, guanyl thiourea and the like, cyclic urea condensates such as ethylene urea and allantoin, and non-cyclic urea condensates such as urea dimers such as biuret and the like can be given. In the present invention, one of these urea and urea derivatives may be used alone or in combination of two or more as the component (B). Among them, urea and / or ethylene urea are used. Is preferred.

The component (B) is used in an amount of about 0.05 to 10 parts by weight per 1 part by weight of the component (B). Above all, the upper limit of the component (A) is 5 parts by weight, more preferably about 4 parts by weight, especially when considering the reduction in the cost of the agent itself. Is the lower limit of
0.2 parts by weight, more preferably about 1 part by weight.

The deodorant composition of the present invention may contain other known deodorants (for example, perlite, zeolite, silica gel, activated carbon, ferrous sulfate and L-ascorbin) as long as their effects are not impaired. Conjugate with an acid, etc.).

<Examples of Use> The deodorant composition of the present invention is usually used in various forms such as powder, solution or emulsion, or as a deodorant adhesive mixed with an appropriate adhesive component. Can be used.

The powder of the composition of the present invention can be used in the same manner as a general powder. For example, the powder is added to and mixed with a material to be treated. As a specific application of the powder form, for example, it can be kneaded as an additive of a synthetic resin and formed into a molded article having an appropriate shape such as a film or a sheet. Further, a powder of the composition of the present invention can be added to a surface finishing paint such as a building material.

Further, the powder of the deodorant composition according to the present invention is dissolved in a suitable organic solvent or a solvent such as water to form a solution, which is then applied to, impregnated with, or mixed with a material to be treated. be able to. Here, known organic solvents can be used. For example, linear or branched aliphatic saturated alcohols having about 1 to 8 carbon atoms, cycloaliphatic alcohols such as cyclopentanol and cyclohexanol, Polyhydric alcohols such as ethylene glycol, linear or branched or cyclic aliphatic hydrocarbons having about 1 to 8 carbon atoms, and linear or branched alkyl having an alkyl moiety having about 1 to 8 carbon atoms. Dialkyl ethers, diaryl ethers, cyclic ethers such as tetrahydrofuran and dioxane, ketones, esters, nitriles such as acetonitrile,
Examples thereof include polar solvents such as dimethylformamide and dimethylsulfoxide, phosphates, and a mixed solvent of two or more of these. In addition, an appropriate amount of water can be contained in such an organic solvent. When prepared in the form of a solvent solution, the concentration of the active ingredient is not particularly limited, and can be appropriately selected from a wide range depending on the use of the obtained solution.
The total amount (deodorant composition) of both components (A) and (B) may be generally about 0.1 to 80% by weight, preferably about 0.5 to 60% by weight of the total amount of the solution.

Specific applications of the deodorant composition of the present invention used in the form of a solution include, for example, wood (mainly, building materials such as plywood, fiberboard, and decorative board, furniture parts), paper, fiber,
Examples include treating agents for fiber products and resin molded products. In order to treat paper, fiber, resin molded product (for example, film or sheet) or the like, it may be applied or impregnated in the form of a solution or an emulsion on the surface of a synthetic resin sheet or non-combustible paper. More specifically, the application to wallpaper is described by taking a synthetic resin sheet (for example, a vinyl chloride resin sheet) and non-combustible paper as an example. Mixing and molding into resin to form a sheet,
It can be applied to the surface of a synthetic resin sheet or impregnated or applied to noncombustible paper. Further, for example, the treated nonwoven fabric is useful as an air filter of an air conditioner or an air purifier.

Further, the emulsion of the deodorant composition of the present invention also comprises
According to a known method, for example, it can be produced by mixing appropriate amounts of the powder of the composition of the present invention, water and a surfactant. Furthermore, by mixing this emulsion with a synthetic resin emulsion, it can be used as a mixed emulsion. Here, as the synthetic resin emulsion, for example, vinyl acetate polymer emulsion, ethylene-vinyl acetate polymer emulsion, vinyl acetate-versatate copolymer emulsion, ethylene-vinyl acetate-vinyl chloride copolymer emulsion, ethylene-vinyl acetate -Emulsion polymerization of acrylate copolymer emulsion, acrylate polymer emulsion, acrylate-styrene copolymer emulsion, vinyl chloride polymer emulsion, urethane polymer emulsion, silicone polymer emulsion, epoxy polymer emulsion, etc. And a synthetic resin emulsion produced by solution polymerization or an aqueous starch solution.

The amount of the active ingredient used in producing the demulsifier in the form of a mixed emulsion is not particularly limited and can be appropriately selected from a wide range.
The total amount (deodorant composition) of both components (A) and (B) is about 0.1 to 30 parts by weight, preferably about 0.5 to 20 parts by weight, based on parts by weight. , May be adjusted as appropriate. Specific uses of the composition of the present invention used in the form of such an emulsion include, for example, paper (paper, wallpaper, etc.), fiber, wood (mainly plywood, decorative board, fiberboard, etc.). Surface treatment agents for building materials), resin molded products (mainly films and sheets), and additives to synthetic resins.

The emulsion of the composition of the present invention can be used as a deodorant adhesive by adding it to an adhesive polymer material and mixing it. As the adhesive polymer material, any of synthetic polymers such as vinyl polymers and natural polymers such as starch can be used. Specifically, for example, emulsions such as vinyl acetate resin emulsions, acrylic resin emulsions, styrene-butadiene copolymer emulsions, ethylene copolymer emulsions and starch aqueous solutions, vinyl acetate resin solutions, ethylene copolymer solutions Solvent-based adhesive materials such as solution-based solvents, cyanoacrylate-based, polyurethane-based,
Examples include a chemically reactive adhesive material such as a urea resin, a phenolic resin, and a furan resin, a hot-melt adhesive material such as a hot melt adhesive, and a rewet adhesive material such as an aqueous starch solution. Among them, one or two or more selected from vinyl acetate resin emulsion, acrylic resin emulsion, styrene-butadiene copolymer emulsion, urea resin, phenol resin, furan resin, and aqueous starch solution are used (at least one of them). It is preferable to use an adhesive material, and the components (A) and (B) (the deodorant composition) are added to 100 parts by weight of the material (in terms of the solid content in the case of a solvent-evaporating material). A composition comprising 1 to 15 parts by weight in total is particularly useful as an adhesive.

Such deodorant adhesives are preferable because they have less hygroscopicity than adhesives in which urea alone is used as a deodorant component, and maintain excellent adhesive performance in a humid period and have excellent antifungal properties. That is, when compounded into an adhesive or the like, generally,
When a large amount of urea is used, the hygroscopicity is increased, and problems such as a decrease in adhesive strength at high humidity and the occurrence of mold are caused. However, the deodorant adhesive of the present invention comprises components (A) and (B). The amount of urea used is suppressed by quantitative mixing, and such a problem does not occur. Further, the deodorant adhesive of the present invention is preferable because it is superior in deodorant performance as compared with an adhesive using hydrazides or the like alone as a deodorant component, and can exhibit the same or higher performance at a lower cost. It is. The deodorant adhesive can be particularly preferably used as an adhesive for bonding wood materials to each other or bonding a veneer or printing paper to a board made of a wood material when manufacturing parts of wooden furniture products due to the above excellent properties. . Furniture manufactured using the deodorant adhesive does not emit formaldehyde or the like into the indoor space or the storage space inside the furniture, so that it can be used as furniture that is safe for human health. Further, it is used as a plywood or wallpaper production, a plywood or other construction plywood or wallpaper production, a bonding of building materials such as plywood, or an adhesive for pasting a wallpaper or the like.

Further, powders of the deodorant composition of the present invention or those prepared in various forms such as solutions or emulsions of the powder are mixed with a suitable synthetic resin to obtain a deodorant resin composition. You can also. The synthetic resin is not particularly limited,
Known materials may be used, for example, polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetoacetylated polyvinyl alcohol, ABS resin, vinylidene chloride resin, vinyl acetate resin, polyamide, polyacetal, polycarbonate, Thermoplastic resins such as modified polyphenylene ether, polysulfone, polyphenylene sulfide,
Thermosetting resins such as epoxy resin, xylene resin, guanamine resin, diallyl phthalate resin, vinyl ester resin, phenol resin, unsaturated polyester, furan resin, polyimide, polyurethane, maleic resin, melamine resin, urea resin (urea resin) And the like. Among them, as the thermoplastic resin, polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetoacetylated polyvinyl alcohol, ABS resin and the like are preferable, and polyvinyl chloride, polyolefin and the like are particularly preferable. . Further, as the thermosetting resin, for example, phenol resin, urea resin (urea resin), melamine resin, unsaturated polyester, epoxy resin, silicon resin, polyurethane and the like are preferable, and epoxy resin and polyurethane are particularly preferable. In the deodorant resin composition of the present invention, the amount of the active ingredient is not particularly limited and can be appropriately selected from a wide range.
(A), (B) the total amount of both components (deodorant composition)
It may be appropriately adjusted so as to be about 0.1 to 30 parts by weight, preferably about 0.5 to 20 parts by weight.

Further, a foaming agent such as azodicarbonamide may be added to the deodorizing resin composition to form a deodorizing foamed resin composition. By heating and foaming the obtained composition, fine bubbles are uniformly dispersed in the coating film after foaming, molded articles, etc., the surface area in contact with air is significantly increased, and the deodorizing effect is further enhanced. improves. The foaming ratio of the foam is preferably 1.2 to 60 times, more preferably 1.5 to 50 times, in consideration of its deodorizing effect and its durability.

The deodorant resin composition further includes, for example, an antioxidant, an ultraviolet absorber, an antistatic agent, a flame retardant,
Known plastic additives such as a coloring agent, a fungicide, a reinforcing material, and a filler may be added. Here, as the reinforcing material and the filler, for example, known inorganic fillers such as fused silica, crystalline silica, aluminum hydroxide, alumina, white carbon, carbon black, potassium titanate whisker, calcium silicate whisker, aluminum borate whisker And inorganic whiskers such as magnesium borate whiskers and zinc silicate whiskers.

When used in the form of a deodorant resin composition, for example, a molded article having a desired shape can be obtained. Specific examples of the molded product include, for example, an air filter, a film, and a sheet for an air conditioner or an air purifier. Preferred synthetic resins at this time are, for example, polyolefins such as polypropylene and polyethylene. The use examples of the deodorant composition of the present invention can be widely used as paints, especially indoor paints, in addition to the above.

[0028]

The present invention will be described in more detail with reference to the following Examples, Comparative Examples and Test Examples. Examples 1 to 3 and Comparative Examples 1 to 5 The ratios (parts by weight) shown in Table 1 are based on 100 parts by weight of a commercially available vinyl acetate resin emulsion (manufactured by Konishi Co., Ltd., “CH-7”, solid content conversion amount). ) With ethylene urea and adipic dihydrazide (ADH) (Otsuka Chemical Co., Ltd.)
Was added to prepare an adhesive. Comparative Example 5 was a blank in which neither ethylene urea nor adipic dihydrazide was added.

The obtained adhesive was weighed at 80 g / m.^TwoAt the rate of
Apply to the surface of the board (F-II standard Rawan plywood 15mm thickness)
Add decorative paper (plain maple 71 repainted paper, 80g
/ M ^Two) And cold press for 30 minutes
A decorative plywood was obtained.

Test Example 1 The decorative plywood obtained in Examples 1 to 3 and Comparative Examples 1 to 5 was evaluated for its deodorizing performance in accordance with the following method in accordance with the method for measuring "JIS 5905 fiberboard formaldehyde emission". evaluated. Desiccator (JIS R3503
A crystal dish (diameter 120) containing 300 ml of distilled water at the bottom of a 240 mm size having an internal volume of about 10 L as defined in
mm, height 60 mm), a porcelain plate is spread thereon, and ten test pieces (15 cm × 5 cm × 7 mm) cut out from the decorative laminated plywood obtained in each of Examples and Comparative Examples are placed. After leaving at 25 ° C. for 24 hours, the released formaldehyde was absorbed in distilled water to obtain a sample solution.
The formaldehyde concentration in the sample solution was colorimetrically determined using a photoelectric colorimeter by the acetylacetone method. Table 1 shows the results. The release amount in the table indicates the release amount of formaldehyde (mg / l). The removal rate in the table is the removal rate of the removal amount relative to the emission reduction rate (the formaldehyde release amount of Comparative Example 5 (the formaldehyde release amount from the test piece cut out from the laminated plywood obtained using only the adhesive)). Division) is shown as a percentage (%).

[0031]

[Table 1]

As is clear from the above results, there is little difference in the deodorizing performance between ADH alone and ethylene urea alone, but it was demonstrated that the deodorizing performance was significantly improved when both were used in combination. In addition, no effective difference was observed between the mixing ratios of ethylene urea and ADH between 1: 5 and 1: 1. Therefore, it is possible to significantly improve the deodorizing performance by adding a small amount of ethylene urea to ADH, so that the excellent deodorizing performance can be achieved while preventing the decrease in the adhesive strength at high humidity and the generation of mold due to the addition of urea. An adhesive having:

Examples 4 to 7 Ethylene was used at a ratio (parts by weight) shown in Table 2 with respect to 100 parts by weight of a commercially available vinyl acetate resin emulsion (manufactured by Konishi Co., Ltd., "CH-7", solid content conversion amount). Urea and adipic dihydrazide (ADH) (Otsuka Chemical Co., Ltd.)
Was added to prepare an adhesive.

Test Example 2 Using the adhesives obtained in the above Examples 1 to 7, plywood (F
-II standard rawan plywood 15 mm thick) was hot-pressed with an adhesive application amount of 90 g / m ² , 105 ° C. and 49 N / cm ^{2 for} 50 seconds to be sufficiently cured. This one piece 75m
m was cut out into a square shape, and subjected to a dip-peel test according to the JAS3 class dip-peel test. That is, each test piece is
After immersion in water at 60 ° C. for 2 hours, the film was dried at 60 ° C. for 3 hours. Those having a non-peeling length on each side of 50 mm or more were accepted, and those not satisfying such criteria were rejected. Table 2 shows the results.

[0035]

[Table 2]

Thus, it can be seen that the adhesives of Examples 1 to 4 are also excellent in water resistance.

Examples 8 to 13 and Comparative Examples 6 to 10 Further, 5.4 parts by weight of calcium chloride (reagent) and urea, ethylene urea and adipic dihydrazide (ADH) in the proportions shown in Table 3 were mixed in water, respectively. Deodorants of Examples and Comparative Examples were prepared. Comparative Example 10 was a blank using untreated plywood.

The obtained deodorant was applied to the surfaces of two kinds of plywood (plywood A and plywood B) at a rate of 4 g / size ² and dried, then cut out to a size of 15 cm × 5 cm × 5.5 mm. A test piece was obtained.

Test Example 3 The decorative plywood obtained in Examples 8 to 13 and Comparative Examples 6 to 10 was evaluated for its deodorizing performance in accordance with the method for measuring the amount of formaldehyde emission from JAS ordinary plywood according to the following method. did. A crystal dish (120 mm in diameter, 120 mm in diameter) containing 300 ml of distilled water at the bottom of a desiccator (with a size of 240 mm and an internal volume of about 10 L specified in JIS R3503)
Height 60mm), put a porcelain plate on it,
The test piece (15 cm × 5 cm) obtained in each of Examples and Comparative Examples
× 3 mm) Each of the 10 sheets was placed and allowed to stand at 20 to 25 ° C. for 24 hours. The released formaldehyde was absorbed in distilled water to obtain a sample solution. The formaldehyde concentration in the sample solution was colorimetrically determined using a photoelectric colorimeter by the acetylacetone method. Table 3 shows the results. The release amount in the table indicates the release amount of formaldehyde (mg / l), and the left column is the result of measurement using plywood A, and the right column is the result of measurement using plywood B. In the table, the removal rate is a percentage (%) of the emission reduction rate (the removal amount divided by the formaldehyde emission amount (formaldehyde emission amount from untreated plywood) in Comparative Example 10).

[0040]

[Table 3]

From the results shown in Table 3, it can be seen that Comparative Examples 6 and 7 using urea or ethylene urea alone and Comparative Examples 8 and 9 using only adipic dihydrazide alone show Example 8 in which both are used in combination. It can be seen that the deodorizing effects of Nos. To 13 are significantly improved. In addition, it can be seen that the addition of adipic dihydrazide to urea can significantly improve the deodorizing effect even in a small amount.

[0042]

As described above, the deodorant composition according to the present invention exhibits excellent deodorizing performance by using hydrazides and the like and ureas in a predetermined ratio. Further, since this excellent deodorant performance can be obtained by adding a small amount of hydrazides, the cost of the agent itself can be reduced.

Further, the deodorant adhesive according to the present invention uses hydrazides and the like and ureas in combination at a predetermined ratio as deodorizing components, so that the above-mentioned excellent deodorizing performance and cost reduction can be obtained. In addition to having a deodorant component, urea is used alone as a deodorant component. This has the effect of lowering the adhesive strength at high humidity and preventing the occurrence of mold.

Continued on the front page (72) Inventor Masahiko Komori 98-2 Ebata, Sumiyoshi, Aizumi-cho, Itano-gun, Tokushima Prefecture Otsuka Chemical Co., Ltd. 463 Kagasuno-cho, Otsuka Chemical Co., Ltd.Tokushima Plant (72) Inventor Yoshinobu Abe 463 Kasuno-cho, Kawauchi-cho, Tokushima City, Tokushima Prefecture In-Tokushima Plant, Otsuka Chemical Co., Ltd. 463 Suno Otsuka Chemical Co., Ltd. Tokushima Plant (72) Inventor Kazuo Hara 463 Kagasuno, Kawauchi-cho, Tokushima City, Tokushima Pref. Otsuka Chemical Co., Ltd. Tokushima Plant F-term (reference) QQ03 4J040 BA201 DA031 DA111 DC011 DD021 DE011 DL141 EA011 EB001 EC001 ED111 EE061 EG001 EH031 EJ001 EL021 HC15 HC19 HC23 HC25 HD20 KA20 LA11 MA04 MA06 MA08 MA09 MA10 MB03 NA10 NA12

Claims (5)

[Claims] 1. A deodorant composition comprising (A) at least one selected from hydrazides, azoles and azines and (B) at least one selected from urea and its derivatives as active ingredients. A deodorant composition comprising 0.05 to 10 parts by weight of the component (A) per 1 part by weight of the component (B). 2. A deodorant composition comprising (A) at least one selected from hydrazides, azoles and azines, and (B) at least one selected from urea and its derivatives as active ingredients. A deodorant composition comprising 0.2 to 4 parts by weight of the component (A) per 1 part by weight of the component (B). 3. A deodorant composition comprising (A) at least one selected from hydrazides, azoles and azines and (B) at least one selected from urea and its derivatives as active ingredients. A deodorant composition comprising 1 to 4 parts by weight of the component (A) per 1 part by weight of the component (B). 4. The deodorant composition according to claim 1, wherein the component (B) contains ethylene urea. 5. A deodorant adhesive comprising 100 parts by weight of an adhesive polymer material and 1 to 15 parts by weight of the deodorant composition according to claim 1. Agent.