JP3069845B2 - Deodorant resin composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a deodorant resin composition. More specifically, the present invention relates to a deodorant resin composition which can maintain an excellent deodorant effect over a long period of time and is useful as, for example, a coating material.

[0002]

In recent years, along with the remarkable improvement in living standards, more comfortable living and working environments have been demanded, and various problems have been raised. For example,
One of the causes of the increasing anti-smoking movement is that many offensive odor components such as acetaldehyde, ammonia, trimethylamine, mercaptan, hydrogen sulfide, etc. contained in cigarette smoke can cause hair, clothes, indoor walls, furniture, carpets, etc. Car,
It may adhere to the interior of vehicles such as trains and remain as an odor. Also, in recent new houses,
New building materials impregnated or coated with chemical substances such as formaldehyde are frequently used, and the chemical substances are vaporized and dispersed in large quantities, resulting in foul odors, worsening the living environment, and further impairing the health of residents. I have.

As means for removing (deodorizing) such malodors, air purifiers, air conditioners and the like are generally used, but their effects are insufficient. Various proposals have been made for methods other than such mechanical deodorizing means.
For example, an acrylic resin having a deodorizing function imparted by modification is spun into fibers, which are processed to produce deodorant carpets and curtains. However, this method is not industrially advantageous because the deodorizing effect is insufficient and the cost for modifying the acrylic resin is high.

[0004] Deodorant coating materials containing a synthetic resin matrix such as an acrylic resin emulsion and a deodorant catalyst are also coated on substrates having various materials and shapes. Representative deodorizing catalysts include, for example, perlite, zeolite, silica gel, activated carbon, a complex of ferrous sulfate and L-ascorbic acid, and the like. Among these, perlite, zeolite, silica gel and activated carbon are catalysts that physically adsorb odors. On the other hand, the complex of ferrous sulfate and L-ascorbic acid generates active oxygen when exposed to ultraviolet light,
This has the function of oxidizing the malodorous components and deodorizing them.
However, conventional coating materials containing these catalysts exhibit a deodorant effect at the beginning of use,
The effect has a long life, and long-term sustainability cannot be expected.

Further, the above various deodorizing means have a fatal drawback that the effect of removing acetaldehyde, which accounts for a large proportion of the malodorous components of tobacco, and aldehydes such as formaldehyde, which is dispersed and vaporized from new building materials, is insufficient. doing.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have succeeded in obtaining a novel deodorant resin composition and completed the present invention.

That is, the present invention relates to the following deodorant resin compositions (1) and (2).

(1) A deodorant resin composition containing 100 parts by weight of a synthetic resin and 0.2 to 20 parts by weight of a hydrazide compound (hereinafter referred to as "first composition").

(2) A deodorant resin composition containing 100 parts by weight of a synthetic resin, 0.2 to 20 parts by weight of a hydrazide compound and 0.2 to 30 parts by weight of a foaming agent (hereinafter referred to as "second composition") .

Unless otherwise specified, the first composition and the second composition are collectively referred to as the deodorant resin composition of the present invention.

The deodorant resin composition of the present invention has a remarkable effect on deodorizing tofensive odor components of tobacco smoke, especially acetaldehyde and aldehydes such as formaldehyde which is dispersed and vaporized from new building materials, and is excellent. It has a preferable property that the deodorizing effect is maintained for a long time.

In particular, the coating film and the molded product obtained by foaming the second composition of the present invention have the above-mentioned preferable characteristics more remarkably.

The deodorant resin composition of the present invention exhibits such a remarkable effect because the hydrazide group in the hydrazide compound is easily bonded to a malodorous component such as acetaldehyde or formaldehyde. Further, since the bond is hydrolyzed by the reaction with water and acetaldehyde, formaldehyde and the like are re-released, a malodorous component such as acetaldehyde and formaldehyde once adsorbed is trace amount in the air. It is considered that the hydrazide group which is gradually re-released at a concentration that does not cause smell to humans due to moisture and becomes free again also contributes to binding and adsorption of a new malodor component and the like.

Further, the effect of the second composition of the present invention is more excellent because fine air bubbles are uniformly dispersed in a coating film, a molded article or the like after foaming, and the surface area in contact with air is small. It is thought to be due to a significant increase.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the first composition of the present invention, the synthetic resin is not particularly limited, and may be a known resin such as polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl Alcohol, acetoacetylated polyvinyl alcohol, ABS resin, vinylidene chloride resin, vinyl acetate resin, polyamide, polyacetal, polycarbonate,
Modified polyphenylene ether polysulfone, thermoplastic resins such as polyphenylene sulfide, epoxy resin, xylene resin, guanamine resin, diallyl phthalate resin,
Examples include thermosetting resins such as vinyl ester resins, phenol resins, unsaturated polyesters, furan resins, polyimides, polyurethanes, maleic resins, melamine resins, and urea resins.

Among them, thermoplastic resins include:
Polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetoacetylated polyvinyl alcohol, ABS
Resins 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, melamine resin, unsaturated polyester, epoxy resin, silicon resin, polyurethane and the like are preferable, and epoxy resin and polyurethane are particularly preferable. In the present invention, various synthetic resin emulsions can be used. 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-acrylate copolymer emulsion, acrylate polymer emulsion, acrylate-styrene copolymer emulsion, vinyl chloride polymer emulsion, urethane polymer emulsion,
Examples thereof include synthetic resin emulsions produced by emulsion polymerization, solution polymerization, and the like of silicone polymer emulsions, epoxy polymer emulsions, and the like.

In the first composition of the present invention, the hydrazide compound is not particularly restricted but includes a monohydrazide compound having one hydrazide group in the molecule, a dihydrazide compound having two hydrazide groups in the molecule, To 3
And polyhydrazide compounds having at least two hydrazide groups.

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, and an n group.
-A carbon number of 1 to 1 such as -propyl group, n-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group and n-undecyl group.
Twelve linear alkyl groups can be mentioned. Examples of the aryl group include a phenyl group, a biphenyl group, a naphthyl group and the like, and among these, a phenyl group is preferable. Further, as a substituent of the aryl group, for example, a hydroxyl group, fluorine, chlorine, a halogen atom such as bromine,
Examples thereof include a linear or branched alkyl group having 1 to 4 carbon atoms such as a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, a tert-butyl group, and an iso-butyl group. be able to.

More specifically, the hydrazide compound of the above general formula (1) includes lauric hydrazide, salicylic hydrazide, form hydrazide, acetohydrazide, propionic hydrazide, p-hydroxybenzoic hydrazide, naphthoic hydrazide, 3 -Hydroxy-
Examples thereof include 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, and an octamethylene group. And a straight-chain alkylene group having 1 to 12 carbon atoms such as a nonamethylene group, a decamethylene group and an undecamethylene group. As the substituent of the alkylene group,
For example, a hydroxyl group etc. can be mentioned. 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. As the substituent of the arylene group,
The same substituents as those described above for the aryl group can be used.

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 dibasic acid dihydrazides such as maleic acid dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydrazide, malic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, dimer acid dihydrazide, and 2,6-naphthoic acid dihydrazide. . Further, various dibasic acid dihydrazide compounds described in JP-B-2-4607, 2,4-dihydrazino-6-
Methylamino-sym-triazine and the like can also be used as the dihydrazide of the present invention.

Specific examples of the polyhydrazide compound include polyacrylic hydrazide.

Of 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. In the first composition of the present invention, the hydrazide compound contains a synthetic resin 10
The amount is usually 0.2 to 20 parts by weight, preferably 0.5 to 10 parts by weight based on 0 parts by weight. If the amount is less than 0.2 parts by weight, the long-term deodorizing performance may decrease. 20
When the amount is more than the weight part, physical properties and the like of an article obtained by molding change, and it may not be applicable to a desired use.

The second composition of the present invention is obtained by further blending a foaming agent with the first 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 agent is not particularly limited, and may be appropriately selected from known organic foaming agents and inorganic foaming agents in accordance with the type of synthetic resin to be used and the intended use of the deodorizing foam to be obtained. Can be used. Examples of the organic blowing agent include azo compounds such as azodicarbonamide, azobisisobutyronitrile, and azohexahydrobenzonitrile, benzenesulfonyl hydrazide, p, p'-oxybis (benzenesulfonyl hydrazide), and p-toluene. Sulfonyl hydrazide, diphenyl sulfone-3,
3'-disulfonyl hydrazide, diphenyl oxide-
Sulfonyl hydrazide compounds such as 4,4'-disulfonyl hydrazide, nitroso compounds such as N, N-dinitrosopentamethylenetetramine, N, N'-dinitroso-N, N'-dimethylterephthalamide, terephthalazide, p-tert Examples thereof include azide compounds such as -butylbenzazide. Among them, azo compounds are preferable, and azodicarbonamide is more preferable. Examples of the inorganic foaming agent include sodium bicarbonate and ammonium carbonate. Further, gases such as carbon dioxide, freon, methylene dichloride, pentane, and air can also be used. For example, in order to foam polyurethane, when an appropriate amount of water is added to polyurethane, isocyanate, which is a component of polyurethane, and water react to generate carbon dioxide, thereby forming a foam. The amount of the foaming agent is usually 0.2 to 30 parts by weight, preferably 0.5 to 2 parts by weight, per 100 parts by weight of the synthetic resin.
It is preferable to use 0 parts by weight. If the amount is less than 0.2 parts by weight, the amount of gas released from the decomposition of the foaming agent is small, or the amount of gaseous substances required for foaming or the amount of gas generated by the reaction is reduced. May not be obtained. On the other hand, if the amount exceeds 30 parts by weight, the amount of gas released from the decomposition of the foaming agent increases, and the gas pressure also increases. Therefore, the resin composition cannot withstand this gas amount and gas pressure, and bubbles in the foam are generated. There are drawbacks such as coarseness, failure of the resin to withstand swelling, bubble collapse, and problems with environmental pollution and safety.

The expansion ratio of the foam obtained by foaming the second composition is preferably 1.2 to 60 times, more preferably 1.5 times, in consideration of its deodorizing effect and its durability. It is better to be up to 50 times.

In the deodorant resin composition of the present invention, the hydrazide compound may be subjected to a surface treatment with a coupling agent in order to further improve the mixing property with the synthetic resin.

Known coupling agents can be used, and examples thereof include silane coupling agents, titanate coupling agents, aluminum coupling agents, and phosphorus coupling agents. Specific examples of the silane coupling agent include, for example, γ-aminopropyltriethoxysilane, N-β- (aminoethyl)
-Γ-aminopropyltriethoxysilane, N-β-
(Aminoethyl) -γ-aminopropyltrimethoxysilane, N-β- (aminoethyl) -γ-aminopropylmethyldimethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, γ-ureidopropyltriethoxysilane Aminosilane coupling agents such as γ
-Glycidoxypropyltrimethoxysilane, β-
Epoxy silane coupling agents such as (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidyloxypropyltrimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, vinyltrichlorosilane, vinyltrimethoxysilane, Vinylsilane-based coupling agents such as vinyltriethoxysilane and vinyltris (β-methoxyethoxy) silane; mercaptosilane-based coupling agents such as γ-mercaptopropyltrimethoxysilane; acrylic silane-based agents such as γ-methacryloyloxypropyltrimethoxysilane General formula RS such as coupling agent, methyltrimethoxysilane, methyltriethoxysilane, γ-chloropropyltrimethoxysilane, trifluoromethyltrimethoxysilane, etc.
i (OR ′) _{3 wherein} R represents a linear or branched alkyl group having about 1 to 4 carbon atoms which may be substituted by one or more halogen atoms, and R ′ represents a carbon atom A linear or branched alkyl group having about several to four is shown. And the like.
Specific examples of titanate-based coupling agents include, for example, isopropyl triisostearoyl titanate, isopropyl tris-isodecyl benzenesulfonyl titanate, isopropyl tris-n-decyl benzene sulfonyl titanate, isopropyl tris (dioctyl pyrophosphate) titanate, tetraisopropyl- Bis (dioctyl phosphite) titanate, tetraoctyl-bis (ditridecyl phosphite) titanate,
Tetra (2,2-diallyloxymethyl-1-butyl)
-Bis (di-tridecyl phosphite) titanate, bis (dioctyl pyrophosphate) oxyacetate titanate, bis (dioctyl pyrophosphate) ethylene titanate, isopropyl trioctanoyl titanate, isopropyl dimethacryl isostearyl titanate, isopropyl isostearyl diacryl titanate Isopropyl tri (dioctyl phosphate) titanate, isopropyl tricumyl phenyl titanate, isopropyl tri (N-aminoethylaminoethyl) titanate, dicumyl phenyloxy acetate titanate, diisostearoyl ethylene titanate, and the like. Specific examples of the aluminum-based coupling agent include, for example, aluminum monoacetylacetonate-bis (ethylacetoacetate), aluminum tris (acetylacetate), and acetoalkoxyaluminum diisopropylate. Examples of the phosphorus-based coupling agent include acryloyloxyethyl phthaloxyethyl diethyl phosphate, di (methacryloyloxyethyl phthaloxyethyl) diethyl pyrophosphate, di (methacryloyloxyethyl phthaloxyethyl) methyl phosphite, and di (methacryloyloxyethyl). Phthaloxyethyl) phosphate, di (acryloyloxyethylphthaloxyethyl) pyrophosphate, di (methacryloyloxyethylphthaloxyethyl) phosphite, methacryloyloxyethylmaleoxyethyl diethylphosphate, di (acryloyloxyethylmaleoxyethyl) diethylpyro Phosphate, di (methacryloyloxyethylmaleoxyethyl) ethyl phosphite, di (acryloyloxy) Ethylmaleoxyethyl) phosphate, di (methacryloyloxyethylmaleoxyethyl) pyrophosphate, di (acryloyloxyethylmaleoxyethyl) phosphite, methacryloyloxyethylsuccinoxyethyl diethylphosphate, di (methacryloyloxyethylsuccinoxyethyl) ) Dimethyl pyrophosphate, di (methacryloyloxyethylsuccinoxyethyl) ethyl phosphite, di (methacryloyloxyethylsuccinoxyethyl) phosphate, di (methacryloyloxyethylsuccinoxyethyl) pyrophosphate, di (methacryloyloxyethylethyl) Synoxyethyl)
Examples thereof include phosphite, di (N-acrylaminomethyl) phosphite, di (N-acrylaminomethyl) pyrophosphate, and di (N-acrylaminomethyl) phosphate. Among the above coupling agents, a silane coupling agent, an aluminum coupling agent and the like are preferable. Such coupling agents can be used alone or in combination of two or more. In performing the surface treatment using the coupling agent, any conventionally known various methods such as a wet method and a dry method can be employed.

In the deodorant resin composition of the present invention, in addition to the above essential components, as a reinforcing material and / or a filler, for example,
Known inorganic fillers such as fused silica, crystalline silica, aluminum hydroxide, alumina, white carbon, and carbon black; inorganics such as potassium titanate whiskers, calcium silicate whiskers, aluminum borate whiskers, magnesium borate whiskers, and zinc silicate whiskers Whiskers may be included.

Further, the deodorant resin composition of the present invention contains, for example, known plastic additives such as antioxidants, ultraviolet absorbers, antistatic agents, flame retardants, coloring agents, and fungicides. May be.

The deodorant resin composition of the present invention can be produced according to a conventionally known method such as mixing and mixing predetermined amounts of the above components.

The deodorant resin composition of the present invention is generally prepared by adding a powder of a hydrazide compound, a dispersion in an organic solvent (a liquid in which the hydrazide compound is dispersed in an organic solvent), an aqueous solution, an emulsion, etc. to the synthetic resin. Used in form. In addition, the dispersion, the aqueous solution, and the emulsion in the organic solvent are themselves, for example, paper and paper products (for example, wallpaper), fibers and fiber products (for example, nonwoven fabric), synthetic resins and molded products thereof (for example, Needless to say, it can be applied or impregnated to a suitable base material such as a film, a sheet, etc., wood and wood products (for example, building materials such as decorative boards, plywood, etc.), thereby providing a certain deodorizing effect. No.

The deodorant resin composition of the present invention, in which a hydrazide compound powder is added to a synthetic resin, can be coated on a base material having an appropriate material and shape according to a known method, or formed into a molded article having an arbitrary shape. Can be molded. Here, the base to which the deodorant resin composition of the present invention can be applied is not particularly limited, and paper products (eg, wallpaper), fibers and fiber products (eg, nonwoven fabrics), synthetic resins and their Examples include molded articles (for example, films and sheets), wood and wood products (for example, building materials such as decorative boards and plywood), metals, and ceramics. More specifically, for example, a molded article having deodorant properties can be obtained by adding and mixing the deodorant resin composition of the present invention to a polyolefin such as polypropylene or polyethylene and molding.
Specific examples of the molded article include an air filter for an air conditioner and an air purifier, a film, a sheet, and the like. Further, among the synthetic resins, preferably a synthetic resin which easily generates formaldehyde such as urea resin, phenol resin, and furan resin, and a hydrazide compound added and mixed, the deodorant resin composition of the present invention is useful as an adhesive or a paint. It is.

The deodorant resin composition of the present invention, in which a dispersion of a hydrazide compound in an organic solvent is added to a synthetic resin,
It can be used for the same applications as the deodorant resin composition of the present invention in a form in which a hydrazide compound powder is added to and mixed with a synthetic resin.

The deodorant resin composition of the present invention in the form of a synthetic resin, preferably an emulsion of a hydrazide compound added to a synthetic resin emulsion, is added to, for example, an adhesive, a surface treatment agent (paint), or a synthetic resin. It can be used as an agent and the like. The applicable base may be the same as in the case of the deodorant resin composition of the present invention in the form of adding and mixing a powder of a hydrazide compound to a synthetic resin. When the composition of the present invention is used as an adhesive, an aqueous synthetic resin emulsion is preferable as the synthetic resin, and an aqueous solution of a water-soluble natural polymer compound such as a vinyl acetate resin emulsion, an acrylic resin emulsion, or starch is particularly preferable. preferable. Also, paper and paper products,
Application of the composition of the present invention to fibers and fiber products, wood and wood products, resin molded products, and the like may be performed by, for example, application, impregnation, or the like. As a more specific example, application to wallpaper will be described by taking a synthetic resin sheet (for example, a vinyl chloride resin sheet) and non-combustible paper as an example.
The composition of the present invention can be added to and mixed with a synthetic resin to form a sheet, applied to the surface of a synthetic resin sheet, or impregnated or applied to noncombustible paper. Further, the composition of the present invention can also be used as an adhesive when laminating a synthetic resin sheet and noncombustible paper. Further, if the nonwoven fabric is coated or impregnated with the composition of the present invention, it can be used as an air filter for an air conditioner or an air purifier.

[0039]

The present invention will be specifically described below with reference to examples and comparative examples. Hereinafter, “parts” and “%” mean “parts by weight” and “% by weight”, respectively.

Examples 1 to 3 and Comparative Example 1 The components in the mixing ratio (parts) shown in Table 1 below were mixed with a propeller-type high-speed stirrer, and further emulsified and mixed with a homogenizer to form a paste. A polyvinyl chloride composition was prepared. The polyvinyl chloride composition was applied to flameproof paper for wallpaper with a knife coater to a thickness of about 0.24 mm.
The composition was gelled by leaving it in a hot-air oven at 35 ° C. for 60 seconds, and further left in a hot-air oven at 200 ° C. for 80 seconds to decompose the foaming agent in the composition. A double-expanded polyvinyl chloride foam was produced. The expansion ratio of the obtained polyvinyl chloride foam is also shown in Table 1. In Table 1, ADH means adipic dihydrazide (the same applies hereinafter).

[0041]

[Table 1]

In Table 1, the polyvinyl chloride, the stabilizer and the blowing agent are specifically as follows.

Polyvinyl chloride: paste polyvinyl chloride, average degree of polymerization 750, trade name: PSL-675, manufactured by Kanebuchi Chemical Industry Co., Ltd. Stabilizer: Ca-Na-Zn composite stabilizer, trade name: Mark FL -22, manufactured by Asahi Denka Kogyo Co., Ltd. Blowing agent: azodicarbonamide, trade name: Uniform AZ H-25, manufactured by Otsuka Chemical Co., Ltd.

Test Example 1 From the polyvinyl chloride foam obtained in Examples 1 to 3 and Comparative Example 1, test pieces of 3 cm × 7 cm were cut out and subjected to the following deodorizing test.

After suspending the test piece in a conical beaker, a predetermined amount of an aqueous solution was added so that acetaldehyde, ammonia or acetic acid was generated at a concentration of 100 ppm. After sealing with a Ciron film, it was left at room temperature for 60 minutes. The residual concentrations (ppm) of acetaldehyde, ammonia and acetic acid after 60 minutes were measured by a gas detector tube.

As Comparative Example 2, the residual concentrations (ppm) of acetaldehyde, ammonia and acetic acid were measured after 60 minutes without adding the test piece.

Table 2 shows the results.

[0048]

[Table 2]

When the above test piece was stored in a room for three months and then subjected to the same test as above, it showed almost the same performance as before storage.

Example 4 The components were uniformly mixed with a propeller type stirrer in the mixing ratio (parts) shown in Table 3 below to produce a deodorant resin composition of the present invention.

[0051]

[Table 3]

Incidentally, the vinyl chloride-acrylate copolymer emulsion in Table 3 is a trade name: VINIBLAN 872, manufactured by Nissin Chemical Industry Co., Ltd.

A polyvinyl chloride foamable composition having the same composition as in Comparative Example 1 was applied to flameproof paper for wallpaper. A knife coater was used for coating, and the thickness of the coating film was 0.24 mm. This was left in a hot air oven at 130 ° C. for 60 seconds to gel the polyvinyl chloride, and the deodorant resin composition of the present invention produced above was applied thereon. The coating was performed using a knife coater, and the coating amount was 15 g / m ² . This is 12
Heating was performed in a hot air drying oven at 0 ° C. for 60 seconds to remove water (drying), and further heating was performed in a hot air oven at 200 ° C. for 70 seconds to decompose the foaming agent and foamed 4.2 times in the thickness direction. A polyvinyl chloride foam was produced.

Comparative Example 3 The same operation as in Example 4 was carried out except that ADH was not used, to produce a polyvinyl chloride foam.

Test Example 2 Using the polyvinyl chloride foam obtained in Example 4 and Comparative Example 3, the same deodorizing test as in Test Example 1 was performed. Table 4 shows the results.

[0056]

[Table 4]

Examples 5 to 6 and Comparative Example 4 Among the components shown in Table 5 below, except for tolylene diisocyanate (TDI-80, trade name: Cosmonate T-80, manufactured by Mitsui Toatsu Chemicals, Inc.) The other components were uniformly mixed with a propeller-type high-speed stirrer, and then tolylene diisocyanate was added, followed by stirring and mixing for 20 seconds, and then allowed to foam and cure to produce a urethane foam having a density of 30 kg / m ³ . .

[0058]

[Table 5]

In Table 5, the bifunctional polyol and the foam stabilizer are specifically as follows.

Bifunctional polyol: OHV-56, trade name: EP-560, manufactured by Mitsui Toatsu Chemicals, Inc. Foam stabilizer: silicone foam stabilizer, trade name: SH-190, manufactured by Toray Silicone Co., Ltd.

Test Example 3 Using the urethane foams obtained in Examples 5 to 6 and Comparative Example 4, the same deodorizing test as in Test Example 1 was performed. In addition, 1g
Was cut out and used as a sample. Table 6 shows the results.

[0062]

[Table 6]

Example 7 and Comparative Example 5 The components (mixing ratio: parts) shown in Table 7 below were mixed with a sand mill and a propeller type high-speed stirrer to produce a deodorant resin composition. This was applied to a gypsum board. The amount of application was such that the film thickness after drying was 0.1 mm, and a roll brush was used for application. Thereafter, the resultant was left at a room temperature of 25 ° C. for 24 hours to remove moisture and dried.

[0064]

[Table 7]

In Table 7, the polyvinyl acetate emulsion, dispersant, wetting agent, thickener, film-forming aid, freeze-thaw stabilizer and antifoaming agent are specifically as follows.

Polyvinyl acetate emulsion: Trade name: Movinyl 303, Hoechst Synthetic Co., Ltd. Dispersant: 10% aqueous solution of sodium hexametaphosphate Wetting agent: Trade name: Triton CF-10, Rohm &
Hass Co., Ltd. Thickener: 2% aqueous solution of methylcellulose Film-forming aid: Butyl carbitol acetate Freeze-thaw stabilizer: Ethylene glycol Antifoaming agent: Trade name: NOPCO NDW, San Nopco Co., Ltd.

Test Example 4 Using the urethane foams obtained in Example 7 and Comparative Example 5, the same deodorizing test as in Test Example 1 was performed. In addition, 1 g of lump was cut out to obtain a sample. Table 8 shows the results.

[0068]

[Table 8]

From the above results, it can be seen that the composition of the present invention has excellent deodorizing performance.

Test Example 5 The polyvinyl chloride foams obtained in Examples 1 to 3 and Comparative Example 1, the polyvinyl chloride foams obtained in Example 4 and Comparative Example 3, Examples 5 to 6, and Comparative Examples From the urethane foam obtained in Example 4 and the urethane foams obtained in Example 7 and Comparative Example 5, test pieces of 3 cm × 7 cm were cut out and subjected to the following deodorizing test.

After suspending the test piece in a conical beaker, formaldehyde was generated at a concentration of 30 ppm.
A predetermined amount of the aqueous solution was added. After sealing with a Ciron film, it was left at room temperature for 60 minutes. 6 by gas detector tube
Residual concentration of formaldehyde after 0 minute (ppm)
Was measured.

Further, as Comparative Example 2, the residual concentration (ppm) of formaldehyde was measured after a lapse of 60 minutes without adding a test piece.

Table 9 shows the results.

[0074]

[Table 9]

When the above test piece was stored in a room for 3 months and then subjected to the same test as above, it showed almost the same performance as before storage.

──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuno Kamiya, Inventor 463, Kasuno, Kawauchi-cho, Tokushima City, Tokushima Prefecture Inside the Tokushima Plant of Otsuka Chemical Co., Ltd. (56) References JP-A-4-80226 (JP, A) JP-A-4-345648 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C08K 5 / 00-13/08 A61L 9/00-9/01

Claims (3)

(57) [Claims] (1) Polyvinyl chloride, polyolefin,
Methacrylic resins, polyvinyl alcohol, the group of thermoplastic resins consisting of acetoacetylated polyvinyl alcohol and ABS resin, (2) an unsaturated polyester, silicic fluororesin and the group of thermosetting resin made of polyurethane, and
(3) Vinyl acetate polymer emulsion, ethylene-vinyl acetate polymer emulsion, vinyl acetate-versatate copolymer emulsion, ethylene-vinyl acetate-vinyl chloride copolymer emulsion, ethylene-vinyl acetate-acrylate copolymer emulsion , acrylic acid ester polymer emulsion, acrylic acid ester - selected from the group of styrene copolymer emulsion, vinyl polymer emulsions chloride, polyurethane polymer emulsion and silicone polymer <br/> Emarujo emissions by Li Cheng synthetic resin emulsion 100 parts by weight of at least one synthetic resin (synthetic resin
In the case of a fat emulsion, the synthetic resin in the emulsion
100 parts by weight) and 0.2 to 20 parts by weight of a hydrazide compound. 2. A vinyl synthetic resin polyvinyl chloride, deodorant resin composition according to claim 1 is at least one selected from polyolefin <br/> fin及 beauty polyurethane. 3. 100 parts by weight of a synthetic resin, hydrazide compound
0.2 to 20 parts by weight of a product and 0.2 to 30 parts by weight of a foaming agent
The deodorant resin composition according to claim 1, further comprising: