JP6408439B2 - Deodorant resin container - Google Patents

Description

  The present invention relates to a deodorant resin container composed of a resin containing or holding a glassy deodorant.

  Resin containers are widely used as various food containers, beverage containers and the like, and are also widely used as garbage containers, diaper containers, simple toilets and the like. When the contents generate odor, it is conceivable to give a deodorizing effect to the resin container itself. Examples thereof are shown in Patent Document 1, Patent Document 2, and the like.

  In Patent Document 1, hydrotalcite and silica-based deodorant are used as the deodorant, and in Patent Document 2, a functional agent supported on inorganic porous particles is used. However, the deodorizing effect of the adsorbent that exhibits the deodorizing effect by physical adsorption or chemical adsorption of such malodorous components depends on the surface exposure amount of the adsorbent. For this reason, the persistence of the deodorizing effect depends on the exposure amount of the deodorant, and the deodorization limit is determined by the exposure amount. Therefore, there is a problem that the deodorizing effect is not sustainable.

  The present applicant has previously developed a water-soluble glassy deodorant (Patent Document 3) made of phosphate glass containing silver. Since this glassy deodorant gradually releases silver ions when it comes into contact with moisture, there is an advantage that the deodorizing effect can be exhibited over a relatively long period of time.

However, since this glassy deodorant is generally a fine powder having a particle size of D ₉₆ = 40 μm or less, the total silver content is also small, and the effect also depends on the surface exposure. For this reason, the deodorizing effect of the glassy deodorant of Patent Document 3 is inevitably lowered as the release of silver ions proceeds. Silver ions have an antibacterial effect and thus prevent odors produced by bacteria. However, silver ions have no deodorizing effect on malodorous substances such as lower fatty acids and body odor components, and are suitable when these odors are a problem. There was no problem.

Japanese Patent Laying-Open No. 2015-67705 JP 2001-192563 A JP-A-5-202227

  Therefore, the object of the present invention is to solve the above-mentioned conventional problems, have excellent deodorizing effect, and not only sulfur-based malodorous substances such as hydrogen sulfide and methyl mercaptan, but also malodorous substances such as lower fatty acids and body odor components. Another object of the present invention is to provide a deodorant resin container having a function of deodorizing.

The present invention made to solve the above problems is a deodorant resin container composed of a resin containing or retaining a glassy deodorant, the glassy deodorant containing a copper component And an alkali-alkaline earth-borosilicate glass having a content of Al ₂ O ₃ of 0 to 5.5 mol% , or a copper component, and a content of Al ₂ O ₃ of 0 to 5.5 mol % Of alkali-alkaline earth-silicate glass, with the copper component held in the glass , the malodorous component in the air is decomposed by the catalytic action of the copper component held in the glass. It has the function to perform.

As in claim 2, the content of the glassy deodorant is preferably 0.1 to 15% by mass, and as in claim 3, the glassy deodorant is D ₉₆ = 40 μm or less. It is preferable that the powder is.

The deodorant resin container of the present invention contains an alkali-alkaline earth-borosilicate glass or copper component containing a copper component and having an Al ₂ O ₃ content of 0 to 5.5 mol%, and Al. It is composed of a resin containing or retaining a vitreous deodorant composed of an alkali-alkaline earth-silicate glass with a content ratio of ₂ O ₃ of 0 to 5.5 mol% , and a copper component The malodorous component in the air in the container can be decomposed by the catalytic action of the copper component retained in the glass while being retained in the glass. Specifically, the use as containers for food packaging it is possible to reduce the internal odor, also when stored in a refrigerator remain the resin container can be eliminated refrigerator interior odor. Furthermore, the use as toilet deodorant container, not only deodorizing liquids and deodorant gel is contents may be also exhibited deodorizing effect in the container. Since the deodorant resin container of the present invention has a high deodorizing effect, the contents need to be refilled, but the container has the advantage that the deodorizing effect continues even if the container is used as it is. The deodorant resin container of the present invention can be widely applied to other uses described later.

  As shown in Patent Document 3, a deodorant using a soluble glass and deodorizing using a chemical reaction between silver ions and malodorous components has been developed. The “glass agent showing the effect” has not been known. As a result of many years of research, the inventors of the present invention, the copper component contained in the glass of the above composition functions as a catalyst, promotes the decomposition reaction of the sulfur-based malodorous substance, the deodorizing effect of the sulfur-based malodorous substance I found new knowledge to play.

  In the present invention, as described above, since it has a mechanism for promoting the decomposition reaction of the sulfur-based malodorous substance using the copper component contained in the glass as a catalyst, compared to the conventional technology using chemical adsorption and physical adsorption, The deodorizing capacity can be increased, and the deodorizing effect can be exhibited stably over a long period of time. That is, both conventional chemical adsorption and physical adsorption depend on the surface exposure amount of the adsorbent, and the deodorization limit is determined by the exposure amount. However, in the present invention, since the catalytic reaction is used, the exposure amount is small. Even so, a large total deodorizing amount can be obtained. For this reason, if attention is paid only to the deodorizing amount, a small amount of the vitreous deodorant may be added.

  The vitreous deodorant used in the present invention can exhibit an excellent deodorizing effect particularly with respect to methyl mercaptan. That is, this glassy deodorant catalytically oxidatively decomposes methyl mercaptan to produce dimeric dimethyl disulfide. At this time, radicals are generated and oxidatively decomposed. Similarly, similar oxidative decomposition is possible for other gases. This point is also referred to in examples described later. However, the odor that can be deodorized is not limited to sulfur-based odor substances. Specific examples include lower fatty acids, acetic acid known as body odor (sweat, foot odor), isovaleric acid, propionic acid, normal butyric acid, normal valeric acid, and caproic acid, a medium chain fatty acid, as defined by the Malodor Control Law. Also, enanthic acid and trans-2-nonenal, known as an aging odor, can be deodorized. In general, those having 2 to 4 carbon atoms are referred to as short chain fatty acids (lower fatty acids), but in this specification, acetic acid having 1 carbon atom and 5 valeric acids are also treated as lower fatty acids.

  In addition, the odor component when food is damaged and the odor component such as onion, cheese, cabbage are mainly hydrogen sulfide, methyl mercaptan, and lower fatty acid, and the resin container of the present invention is a resin container for these specific foods. Suitable as Further, as body odor components, for example, acetic acid, isovaleric acid, and trans-2-nonenal are known, but the present invention can decompose these odors and is therefore suitable as a diaper container. Since the present invention can decompose these odors, it is suitable as a container for diapers, a pet toilet, an emergency toilet, etc. Moreover, it can be widely applied not only to diaper containers but also to household goods such as refrigerators, containers in refrigerators, household appliances such as air purifiers, trash cans, triangular corners, and garbage disposal equipment.

  In particular, with regard to garbage bags, there is a case where garbage is difficult to burn in garbage incineration facilities such as local governments because of the recent progress of waste separation. Since the vitreous deodorant of the present invention promotes oxidative decomposition by radicals as shown in Example C described later, it has not only a deodorizing effect but also a function as a combustion promoting catalyst. That is, it is suitable for use in resin compositions classified as combustible garbage as well as garbage bags. The basic characteristics of a glassy deodorant are naturally retained even when kneaded into a resin.

  In addition, removal of malodorous components may be required in the technical fields of pharmaceuticals, electronic parts and precision equipment. That is, hydrogen sulfide and acetic acid may be generated by outgas from chemicals used in the manufacturing process or the pharmaceutical itself, and these are not only bad odors but also corrosive gases that lead to metal corrosion and product deterioration. By using the container having the deodorizing function of the present invention, it is possible to contribute to the extension of the product life and the stabilization of the product quality. Furthermore, some drugs use odorous sulfur compounds, which are suitable as pharmaceutical containers.

It is typical sectional drawing which shows the deodorizing resin container of 1st Embodiment. It is typical sectional drawing which shows the deodorizing resin container of 2nd Embodiment. It is a graph which shows the result of Example B.

Embodiments of the present invention will be described below.
As shown in FIG. 1, the deodorant resin container according to the first embodiment is a wide-mouthed jar 2 for food molded from a resin containing a vitreous deodorant 1. The vitreous deodorant 1 is composed of an alkali-alkaline earth-borosilicate glass containing a copper component or an alkali-alkaline earth-silicate glass containing a copper component. Although the cap is not shown in the figure, the cap can also contain the glassy deodorant 1.

  The content of the glassy deodorant 1 is preferably about 0.1 to 15% of the mass of the resin container. If there is too little glassy deodorant 1, a deodorizing effect will become inadequate. A more preferable content rate is 0.1 to 10% by mass. In the present invention, since the vitreous deodorant 1 exhibits a deodorizing function due to a catalytic effect, the deodorizing amount does not depend on the exposed amount of the vitreous deodorant 1. For this reason, it is sufficient that a small amount is exposed on the surface in the long term.

The particle size of the glassy deodorant 1 is desirably D ₉₆ = 40 μm or less. Here, D ₉₆ means a particle size at which the integral value when the particle size distribution measurement is performed and the cumulative distribution is 96%. With D ₉₆ are uniformly dispersed difficulties of the exceeding 40μm resin, there is a possibility that the original mechanical strength and moldability resin is impaired. When the particle size is less than 1 μm, the efficiency of pulverizing and classifying glass is extremely lowered, which is not preferable in production. A particle size of about 1 to 40 μm is practical. Such a glassy deodorant 1 can be manufactured by a method in which a blended raw material is melted and rapidly cooled to obtain a pre-molded body, and then pulverized. For the pulverization, a generally known pulverizer (for example, a ball mill, a bead mill, a jet mill, a CF mill, etc.) can be used, and it may be dry or wet.
Next, the composition of the glassy deodorant 1 will be described.

(Alkali-alkaline earth-borosilicate glass)
The alkali-alkaline earth-borosilicate glass containing the above-described copper component is SiO ₂ : 46 to 70 mol%, B ₂ O ₃ + R ₂ O (R: alkali metal): 15 to 50 mol%, R′O. (R ′: Alkaline earth metal): 0 to 10 mol%, Al ₂ O ₃ : 0 to 5.5 mol%, CuO: 0.01 to 23 mol%. _Here, B ₂ O 3: _{5~20 mol%,} R 2 O: can be 10 to 30 mol%.

Preferred compositions the vitreous deodorant _1, SiO 2: 51~63 _{mol%, B 2 O 3 + R} 2 O: 21~39 mol%, R'O: 2 to 7 _mol%, Al _{2 O} 3: 0 to 5.5%, CuO: 1 to 13 mol%. _Here, B ₂ O 3: _{8~17 mol%,} R 2 O: can be 13 to 22 mol%. The most preferred composition of this vitreous deodorant _1, SiO 2: 53-62 _{mol%, B} 2 O 3: _{10~17 mol%,} R 2 O: _13~19 mol%, R'O: 3~ 6 _{mol%, Al 2 O 3: 0~4.5} %, CuO: 4~13 are mole%. Below, each glass composition is demonstrated in detail.

(SiO ₂ )
SiO ₂ is a main component that forms the structural skeleton of glass, and its content is 46 to 70 mol%, preferably 51 to 63 mol%, and more preferably 53 to 62 mol%. If it is less than 46 mol%, the chemical durability of the glass becomes insufficient, and the glass tends to devitrify, which is not preferable. Furthermore, if it is less than 46 mol%, the water resistance of the glass becomes insufficient, and copper ions are more likely to elute in the presence of moisture (including moisture in the atmosphere). Since the deodorizing effect by the sulfurization reaction which occurs by this becomes strong, it is not preferable. If it exceeds 70 mol%, the melting point increases, which makes glass melting difficult and also causes an increase in viscosity.

(B ₂ O ₃ )
B ₂ O ₃ is a component that improves the solubility and clarity of the glass, and in a specific composition, it also becomes a component that forms the structural skeleton of the glass. B ₂ O ₃ greatly affects the stability of the glass depending on its content, and in the present invention, the meaning as a flux of glass is large. Its _content, in consideration of the volatilization amount of B 2 _{O 3,} 5 to 20 mol%, preferably 8 to 17 mol%, further preferably 10 to 17 mol%. When it exceeds 20 mol%, B ₂ O ₃ is not preferred because it tends to volatilize in the melting process and the composition control becomes difficult.

(R ₂ O)
R ₂ O (R = Li, Na, K) breaks the bond between Si and O in the glass structure skeleton to form non-crosslinked oxygen, resulting in a decrease in glass viscosity, moldability and solubility. And a flux similar to B ₂ O ₃ . The content of one or more of R ₂ O is 10 to 30 mol% in total, preferably 13 to 22 mol%, more preferably 13 to 19 mol%, considering the content ratio with multiple components. And When it exceeds 30 mol%, the chemical durability of the glass becomes insufficient. Specifically, a whitening phenomenon called bloom is caused by a reaction between the glass agent and moisture in the atmosphere. The occurrence of bloom is undesirable because it reduces the contact area with malodorous gas.

(B ₂ O ₃ + R ₂ O)
As mentioned above, both B ₂ O ₃ and R ₂ O are used as fluxing agents. The range in which the total content of B ₂ O ₃ and R ₂ O is 15 to 50 mol%, preferably 21 to 39 mol%, is a region that safely exhibits the deodorizing effect. If it is less than 15 mol%, the meltability of the glass becomes insufficient, and devitrification tends to occur during molding, which is not preferable. If it exceeds 50 mol%, the water resistance of the glass becomes insufficient, and copper ions are likely to elute in the presence of moisture (including moisture in the atmosphere), resulting in ion elution rather than deodorizing effect due to catalysis. Since the deodorizing effect by a sulfurization reaction becomes strong, it is not preferable. On the other hand, if it exceeds 50 mol%, phase separation is likely to occur during melting, and the deodorizing effect of the glass agent becomes insufficient accordingly.

(R'O)
R′O (R ′ = Mg, Ca, Sr, Ba) is a component that improves the chemical durability of the glass. The content is one or two or more of R′O (R ′ = Mg, Ca, Sr, Ba) in a total of 0 to 10 mol%, preferably 2 to 7 mol%, more preferably 3 to 6 mol. %. If it exceeds 10 mol%, the viscosity at the time of melting becomes high and the glass tends to be devitrified, which is not preferable. Note that R′O is not an essential component in the deodorant of the invention, and its content may be 0 mol%, but is preferably 2 mol% or more.

(Al ₂ O ₃ )
Al ₂ O ₃ is a component that improves the chemical durability of the glass and affects the crystal structure stability. Further, Al ₂ O ₃ functions to suppress the phase separation of the glass and increase the homogeneity of the glass agent. The content is made 5.5 mol% or less, and most preferably 4.5 mol% or less because there is a possibility that the addition or addition may affect the redox state of copper ions in the glass.

(CuO)
CuO functions as a catalyst, accelerates the decomposition reaction of the sulfurous malodorous substance, and exhibits the deodorizing effect of the sulfurous malodorous substance. The content is 0.01 to 23 mol%, preferably 1 to 13 mol%, more preferably 4 to 13 mol%. If it exceeds 23 mol%, undissolved material tends to remain, and metal copper tends to precipitate during rapid cooling or processing, which is not preferable. Since the glass is discolored with the deposition of metallic copper, it is not suitable for applications where discoloration of the glass is a problem. Moreover, when it precipitates as metallic copper, poisoning will advance. On the other hand, if CuO is included as a glass component, poisoning does not proceed easily, and the catalytic function can be stably exhibited over a long period of time.

(Other trace components)
In addition to the above components, ZnO, SrO, BaO, TiO ₂ , ZrO ₂ , Nb ₂ O ₅ , P ₂ O ₅ , Cs ₂ O, Rb ₂ O, TeO ₂ , BeO, GeO ₂ , Bi ₂ can be used as trace components. O ₃ , La ₂ O ₃ , Y ₂ O ₃ , WO ₃ , MoO ₃ , Fe ₂ O ₃ or the like can also be included. Furthermore, F, Cl, SO ₃ , Sb ₂ O ₃ , SnO ₂ , Ce, or the like may be added as a clarifier.

(Alkali-alkaline earth-silicate glass)
In the present invention, an alkali-alkaline earth-silicate glass containing a copper component can also be used as the vitreous deodorant 1. This _glass, SiO 2: 50-70 _mol%, R 2 O: _10~33 mol%, R'O: 0 to 15 _{mol%, Al 2 O 3: 0~} 5.5%, CuO: 0.01 Glass containing ˜23 mol%.

The preferred composition of the vitreous deodorant _1, SiO 2: 55 to 70 _mol%, R 2 O: _12~24 mol%, R'O: 2 to 10 _{mol%, Al 2 O 3: 0~5} . 5%, CuO: 1 to 20 mol%. The most preferred composition of this vitreous deodorant _1, SiO 2: 55 to 65 _mol%, R 2 O: _12~20 mol%, R'O: 3 to 7 _mol%, Al ₂ O 3: _0~ 5%, CuO: 4 to 13 mol%.

Unlike the alkali-alkaline earth-borosilicate glass described above, the alkali-alkaline earth-silicate glass does not contain B ₂ O ₃ , so the numerical range of the composition is slightly changed. Is the same as alkali-alkaline earth-borosilicate glass.

  The vitreous deodorant 1 comprising an alkali-alkaline earth-borosilicate glass containing a copper component or an alkali-alkali earth-silicate glass containing a copper component is contained in a resin constituting a resin container. Contained and exhibits a deodorizing effect. As described above, the vitreous deodorant 1 has a function of decomposing malodorous components by the catalytic action of the copper component held in the glass. Unlike the soluble glass, the copper component decomposes the malodorous component by the catalytic action while being retained in the glass, so that the deodorizing effect is maintained over a long period of time and the durability is excellent. Further, since the soluble glass is acidic glass, it has no deodorizing effect on lower fatty acids that are acidic malodors. However, the glassy deodorant 1 in the present invention has a deodorizing effect on malodorous substances such as lower fatty acids and body odor components. Have.

  The type of resin constituting the resin container is not particularly limited, and polyethylene, polypropylene, chlorinated polypropylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, alkyd resin, polyvinyl acetate, vinyl acetate nylon, polyester, Synthetic resins such as polyvinyl alcohol, acrylic resin, vinyl chloride / vinyl acetate copolymer resin, styrene resin, epoxy resin, polymethylpentene, polymethyl methacrylate, polyvinyl butyral, ionomer, polyurethane, and cellulose derivatives can be used. One or two or more of these various resins may be kneaded and multilayered. A part of the container may be constituted by such a resin, and there is no problem in the deodorizing effect even in the case of crystallization.

  In addition to the above, general-purpose engineering plastics such as polyethylene terephthalate (PET), polycarbonate (PC), polyamide (PA), polyphenylene sulfide (PPS), modified polyphenylene ether (m-PPE), polyetherimide (PEI), polyethersulfone (PES), polyarylate (PAR), heat-resistant polyamide (nylon 6T, nylon 66, nylon 12, nylon 9T, nylon 46T), polybutylene terephthalate (PBT), polyacetal (POM), polyether ether ketone (PEEK), liquid crystal A heat resistant resin such as a polymer (LCP) or a thermosetting resin can also be used. These various resins may be kneaded or multilayered by one kind or two or more kinds. A part of the container may be constituted by such a resin, and there is no problem in the deodorizing effect even in the case of crystallization.

  In the above-described embodiment, the glassy deodorant 1 is used alone, but it can also be used in combination with inorganic deodorants such as general-purpose silica gel, zeolite, activated carbon, clay mineral, photocatalyst (titanium dioxide). . Moreover, it can also be used with the phosphate glass containing the silver of patent document 1. Such combined use makes it possible to aim at effects such as speeding up the deodorization speed, expanding the gas to be deodorized, and reducing costs.

  FIG. 2 is a perspective view showing a resin container 3 for a simple toilet, which is a second embodiment of the present invention. The resin container 3 for the simple toilet also contains the glassy deodorant 1. 4 is a toilet seat, and 5 is a resin bag. Methyl mercaptan and ammonia, which are the main components of toilet odor, are deodorized by the vitreous deodorant 1 contained in the resin container 3. In addition, this invention is suitable for using also for the toilet container for pets.

  In any embodiment, the glassy deodorant 1 was contained in the resin. For mixing into the resin, a method of adding the glassy deodorant 1 as a master batch into the resin or a method of directly mixing the glassy deodorant 1 powder into the resin can be employed. However, the glassy deodorant 1 can also be held on the surface of the resin container. In this case, the glassy deodorant 1 can be held on the surface of the resin container by spraying or printing. However, considering the durability of the container, it is preferable to knead into the resin.

  Examples of the present invention are shown below.

  A glass raw material was prepared so as to have the composition shown in Table 1, and melted, molded, and ground as necessary to produce a vitreous deodorant by a conventional method similar to a general glass composition such as bottle glass. The obtained glassy deodorant was held in a resin container (FIG. 1 container, 500 mL) as shown in Table 2, and a deodorant resin container was molded. A deodorizing effect confirmation test was conducted using this deodorant resin container. In the test, a malodorous component was enclosed in a resin container, and the malodor concentration in the resin container with the elapsed time at room temperature was measured. As malodorous components, hydrogen sulfide, methyl mercaptan, lower fatty acids, and trans-2-nonenal were used. For comparison, 1% by mass of soluble glass 1-4 having the composition shown in Table 3 was added to PE to produce a resin container having the same shape.

(Example A: Confirmation of deodorizing effect)
The malodorous component was enclosed in the resin containers of Experimental Examples 1 to 29 in Table 2 and the resin containers of soluble glass 1 to 4, and the malodor concentration in the container with the elapsed time was measured at room temperature. Hydrogen sulfide, acetic acid, propionic acid and isovaleric acid were measured with a gas detector tube, methyl mercaptan was measured with a gas chromatograph, and trans-2-nonenal was measured with a high performance liquid chromatograph. The results are shown in Tables 4-5. A blank containing no copper component corresponds to Experimental Example 7. As a result, as shown in Table 4, all the deodorizing effects were confirmed except for Experimental Example 7. Further, as shown in Table 5, it was confirmed that the soluble glass reached the deodorization limit, but the one containing the copper component had a large total deodorization amount. While the deodorizing amount of the soluble glass is determined according to the exposure amount, the experimental example shows a catalytic action, and therefore, the total deodorizing amount can be expected even with a small amount. However, the glass changes continuously depending on the composition, and the effect also changes continuously from the catalytic reaction to the adsorption reaction of the soluble glass. Since Experimental Example 9 had a composition with reduced durability, it exhibited an adsorption reaction like the soluble glass, and it was confirmed that the deodorization limit was reached.

(Example B: Basic characteristics and decomposition action of glassy deodorant)
1 g of glass consisting of composition number 6 in Table 1 pulverized to D ₅₀ = 4.2 μm and methyl mercaptan were sealed in a 5 L Tedlar bag, and methyl mercaptan and dimethyl disulfide in the bag over time were measured with a gas chromatograph at room temperature. did. Moreover, the same operation was performed as a blank, without a glassy deodorant. In addition, it was confirmed in advance by a gas chromatograph mass spectrometer that the gas components present in the bag were only these two components. As a result, as shown in FIG. 3, it was confirmed that the vitreous deodorant of the present invention has an action of decomposing methyl mercaptan and generating dimethyl disulfide. The basic characteristics of a glassy deodorant are naturally retained even when kneaded into a resin. In Example A, it was confirmed that the vitreous deodorant was exposed.

(Example C: Basic characteristics of glassy deodorant / radical generation)
D ₅₀ = 0.1 mol·L ⁻¹ phosphate buffer solution of pH = 7.4 with respect to 200 mg of the glass composed of the soluble glass 1 of composition numbers 6 and 9 and table 3 of Table 1 ground to 5.0 μm 200 μL was added. Thereto, 10 μL of 9.2 mol·L ⁻¹ DMPO (manufactured by LABOTEC, LM-2110) was added and shaken. Shake was stopped 10 seconds, 1 minute, and 5 minutes after DMPO addition, and only the solution was collected with a hematocrit tube, and ESR (manufactured by JEOL Ltd., FR-30, X band) measurement was performed. Moreover, the thing except glass was made into the blank. All were performed at room temperature under fluorescent light. This technique corresponds to the spin trap method, which is a general technique for measuring radicals, and spin adducts are generated when DMPO captures radicals. This product (DMPO-OH) was detected by ESR. The unit of the detected value is a peak area value ratio (area single / area manganese, S / M) with respect to the reference material Mn ²⁺ . The results are shown in Table 6. The composition No. 6 glass was confirmed to produce DMPO-OH, whereas the composition No. 9 and the soluble glass 1 only showed a background value as in the blank. It was confirmed that the vitreous deodorant of the present invention has a high possibility of generating radicals.

(Example D: Basic characteristics of glassy deodorant and suppression of catalyst deterioration)
D ₅₀ = 4.2 μm crushed glass of composition number 6 in Table 2 0.1 g and CuO reagent (average particle size 4 μm) 0.1 g each was sealed in a 1 L Tedlar bag at room temperature with time The methyl mercaptan concentration in the bag was measured with a gas chromatograph. The initial concentration of methyl mercaptan was 55 ppm and repeated up to 10 times. Moreover, the same operation was performed without glass as a blank. As a result, as shown in Table 7, the deodorizing effect of the CuO reagent is reduced with repetition. This is a generally known catalyst deterioration (sulfur adsorption) of CuO. On the other hand, it was confirmed that the glass maintained the deodorizing effect and was highly sustainable. Although elucidation of this mechanism remains, it has been confirmed that catalyst degradation is suppressed by vitrification. When the glass surface at this time was analyzed by XPS (manufactured by ULVAC-PHI Co., Ltd., PHI 5000 VersaProbe), as shown in Table 8, it was confirmed that there was certainly no sulfur adsorption after deodorization. The basic characteristics of a glassy deodorant are naturally maintained even when kneaded into a film or the like.

DESCRIPTION OF SYMBOLS 1 Glassy deodorant 2 Wide mouth cup 3 Resin container for simple toilets 4 Toilet seat 5 Resin bag

Claims (3)

A deodorant resin container composed of a resin containing or holding a glassy deodorant,
This glassy deodorant contains a copper component, and contains an alkali-alkaline earth-borosilicate glass in which the content of Al ₂ O ₃ is 0 to 5.5 mol% , or a copper component, and Al ₂ O ₃ consisting of an alkali-alkaline earth-silicate glass with a content of 0 to 5.5 mol% ,
A deodorant resin container having a function of decomposing malodorous components in the air in the container by the catalytic action of the copper component held in the glass while the copper component is held in the glass.   The deodorant resin container according to claim 1, wherein the content of the glassy deodorant is 0.1 to 15% by mass. The deodorant resin container according to claim 1 or 2, wherein the glassy deodorant is a powder having a D _{96 of} 40 µm or less.