JPH06107847A - Deodorant resin - Google Patents

Abstract

PURPOSE:To provide a deodorizing resin nonproblematic in coloration, etc., and extensively and readily usable against various malodors. CONSTITUTION:The title resin is obtained by mixing a resin with a deodorizing composition comprising magnesium aluminate silicate of the formula: Al2 O3.xMgO.ySiO2.mH2O(I) wherein x is a number of 0.3-3; y is a number of 0.3-3, and/or aluminum silicate of the formula: Al2O2.zSiO2.nH2O(II) wherein z is a number of 0.5-20 and zinc oxide having an ignition loss of 0.5-20wt.%.

Description

Detailed Description of the Invention

The present invention relates to a deodorant resin. More specifically, it has an excellent deodorizing effect against various malodors derived from ammonia, amines, hydrogen sulfide, mercaptans or fatty acids, and can be used easily and efficiently.
Moreover, the present invention relates to a deodorant resin that can be used in a wide range of applications without problems such as coloring and contamination during use.

[0002]

2. Description of the Related Art Conventionally, various deodorants have been reported in order to remove various malodors, and their use alone or in the form of being kneaded with a resin has been reported. However, the deodorant composition is generally colored in many cases, including the fact that the activated carbon most commonly used as the deodorant composition is black, and these colored deodorant compositions are blended with a resin. If the deodorant resin obtained by doing so is used as a molded product, the aesthetics of the product will be impaired due to coloring etc.
There was a problem in actual use. Further, deodorizing resin compositions using titanium dioxide, zinc oxide, aluminum oxide, silicon dioxide, etc. as white deodorants have been reported, but these are not satisfactory in terms of their deodorizing power. It was

[0003]

DISCLOSURE OF THE INVENTION The present invention is capable of efficiently removing various malodors, does not cause a problem such as coloring, and is excellent in moldability which can be easily and widely used for various malodors. The purpose is to provide a functional resin.

[0004]

SUMMARY OF THE INVENTION The present inventors have previously proposed the following formula: Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (where x is 0.3 to ₃ and y is , 0.3 to 3) and magnesium aluminate silicate represented by
Alternatively, aluminum silicate represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) and ignition loss of 0.5 to 20 weight % Containing zinc oxide can efficiently remove the malodor derived from ammonia, amines, hydrogen sulfide, mercaptans, fatty acids, etc. which are considered to be typical malodors. Usually white to pale yellow powder,
We have found that the composition does not cause problems such as coloring when used, and has an excellent deodorizing ability that can be easily and widely used against various malodors, and has already applied for a patent (Patent application 4-211977)

The present inventors have conducted further research on the use of the above-mentioned deodorant composition. As a result, the resin composition of the present invention obtained from the deodorant composition and a resin has an excellent deodorizing effect against the above various malodors. The present invention has been completed by discovering that the resin has excellent physical properties such as moldability.

That is, according to the present invention, firstly, the formula Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (where x is 0.3 to ₃ and y is 0.3 to ₃ ) The deodorizing resin is characterized by containing a deodorizing composition consisting of magnesium aluminate silicate represented by the formula (1) and zinc oxide having a loss on ignition of 0.5 to 20% by weight.

Secondly, aluminum silicate represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) and ignition loss of 0.1. A deodorizing resin containing a deodorizing composition comprising 5 to 20% by weight of zinc oxide,

Thirdly, the formula Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (wherein x represents 0.3 to ₃ and y represents a number of 0.3 to ₃ ). And magnesium aluminosilicate represented by the formula Al ₂ O ₃ · zSiO ₂ · nH ₂ O (II) (wherein z represents a number of 1 to 20) and strong aluminum silicate represented by the formula: A deodorizing resin containing a deodorizing composition consisting of zinc oxide having a heat loss of 0.5 to 20% by weight.

The deodorizing resin of the present invention comprises the above deodorizing composition, resin, additive, filler and the like.

The resin used in the present invention is a natural resin, a semi-synthetic resin or a synthetic resin usually used as a resin, and may be a thermoplastic resin or a thermosetting resin. Thermoplastic resins include polyamides such as nylon 6, nylon 66, polyolefins such as polyethylene, polypropylene, polybutadiene, polystyrene, vinyl acetate,
Examples thereof include polyvinyl alcohol, polyacrylamide, and various copolymers thereof, for example, acrylonitrile-butadiene-styrene copolymers, urethane resins, polyesters such as polyethylene terephthalate. On the other hand, as a thermosetting resin,
Examples thereof include resin and urea resin.

Plasticizers, matting agents, deodorants, colorants, ultraviolet absorbers, flame retardants, optical brighteners, ion adsorbents, antibacterial agents, etc. may be added to the above-mentioned resins in a conventional manner. it can.

An inorganic filler and an organic filler are used as the filler. Talc, calcium carbonate, clay, kaolin, silica, diatomaceous earth, zeolite or the like is used as the inorganic filler, and pulp or the like is used as the organic filler. These may be used alone or as a mixture. The average particle size of the filler is preferably 30 μm or less, 10
It is more preferably not more than μm, most preferably not more than 5 μm.

The deodorizing resin of the present invention is mixed by a conventional method, for example, when the resin is a thermoplastic resin, the deodorizing composition is mixed at the time of production, or after the resin is produced, the deodorizing composition is added and kneaded. Or by spreading the above deodorant composition on the surface of the resin after the resin is manufactured. Further, in order to facilitate the subsequent molding treatment, it can be obtained in the form of pellets by a conventional method. The particle size of the deodorant composition used in the present invention varies depending on the type of resin used, the type of filler to be blended, the molding application, etc., but is usually preferably 3 μm or less, particularly preferably 1 μm or less. When the deodorant composition is exposed on the surface of the molded article, if desired, it is preferable to use one having a larger particle size.

The compounding amount of the deodorizing composition in the deodorizing resin of the present invention varies depending on the type of resin, the amount of filler to be compounded, the molding application, etc., but is usually 0.01 to 90 relative to the resin.
%, Preferably 0.1 to 50% by weight.
For example, in the case of a finally formed film, the amount of the deodorizing composition that can be contained in the resin is 0.1 to 20% by weight, preferably 0.2 to 5% by weight. The deodorizing resin of the present invention has a transparent appearance when it is added in a small amount as a matter of course in appearance, but becomes whiter as the added amount increases.

Next, a method for producing the above deodorant composition used as a starting material in the present invention will be described.

First, the deodorizing composition used in the present invention has the formula Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (where x is 0.3 to ₃ and y is 0). 3 represents the number of 3 to 3) and magnesium aluminate silicate represented by
Alternatively, aluminum silicate represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) and ignition loss of 0.5 to 20 weight % Zinc oxide.

Magnesium aluminate silicate used in the above-mentioned manufacturing method has the formula Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (where x is 0.3 to ₃ and y is 0. It is a white powder having a particle size of 0.05 to 100 μm.

Specific examples of magnesium aluminate silicate include magnesium aluminate metasilicate (manufactured by Fuji Chemical Industry Co., Ltd., trade name Neusilin ^(R) ), magnesium aluminate silicate (manufactured by Fuji Chemical Industry Co., Ltd., An example is the product name Neusilin A).

Aluminum silicate has a particle size represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) of 0.05. It is a white powder of -100 μm.

Specific examples of the aluminum silicate include synthetic aluminum silicate and natural aluminum silicate.

The above-mentioned ignition loss of 0.5 to 20% by weight can be obtained by igniting zincate such as basic zinc carbonate. The temperature for igniting may be any temperature at which a constant weight can be obtained, and preferably 300 to 700 ° C. The ignition time is usually 10 minutes to several hours, although it varies depending on conditions such as the temperature of ignition and the amount used. Loss on ignition is
It is determined by comparing the weights before and after ignition with a conventional method.

The particle size of this zinc oxide is from 0.05 to 10
It is preferably about 0 μm. The color tone of this zinc oxide is preferably white to pale yellow.

The mixing in the method for producing the above composition is carried out by a conventional method, for example, by stirring and mixing using a V-type mixer.

There is no particular limitation on the method of adding each component during this stirring and mixing, and magnesium aluminate silicate,
Aluminum silicate and 0.5 to 20 wt% zinc oxide can be added in any order.

The mixing time varies depending on the type, specific gravity, amount, etc. of each component to be added, but 10 minutes to several hours is usually sufficient.

Further, magnesium aluminate silicate and / or aluminum silicate in the above deodorant composition,
The mixing ratio with the ignition loss of 0.5 to 20% by weight of zinc oxide is preferably 30: 70% by weight to 70: 30% by weight.

The deodorizing composition obtained by the above-mentioned production method can be usually used as it is as a deodorizing agent, but if necessary, it may be further pulverized by a conventional method so that the particle diameters are made uniform. .

Next, a method for producing the deodorant composition used in the present invention by the spray drying method will be described.

The spray-drying method comprises magnesium aluminate silicate and / or aluminum silicate, and a loss on ignition of 0.
Any material can be used as long as it can be physically complexed with 5 to 20% by weight of zinc oxide, and for example, a method of granulating by spray drying using a nozzle method, a centrifugal method or the like is suitable. Temperature conditions such as heat input temperature and outlet temperature in spray drying vary depending on the type and amount of the solvent used, but when water is used, it is preferably about 100 ° C to 500 ° C.

The size and the like of the particles of the deodorant composition obtained by the above spray drying are not limited, and if necessary, the deodorant composition may be further pulverized and used, and this does not impair the deodorizing effect. Absent.

When strength is required for the particles of the deodorant composition, more preferable strength is obtained by spray-drying the suspension by adding a binder or the like to the suspension in a conventional manner during spray-drying. be able to. As the binder, those used for ordinary granulation may be used, for example, various cellulose derivatives such as methyl cellulose and ethyl cellulose, organic binders such as polyacrylic acid and starch derivatives, and water glass and clay. Examples thereof include inorganic binders such as

Each deodorant composition obtained by each of the above production methods exhibits an excellent deodorizing ability against the various malodors. The deodorizing composition can efficiently remove the malodor derived from ammonia, amines, hydrogen sulfide, mercaptans, fatty acids, etc., which are considered to be sources of malodor.

Each of the above deodorant compositions is usually a white powder, but depending on the purity of the zinc oxide used, it may become a white to pale yellow powder. Is not particularly limited.

The first, second, and third deodorizing resins of the present invention can be used for ammonia, amines, hydrogen sulfide, mercaptans, fatty acids, etc., which are considered to be typical offensive odors as a result of the deodorizing test described later. It has been clarified that it has an excellent deodorizing ability for various offensive odors.

Examples of the amines include aliphatic primary amines such as methylamine, ethylamine, propylamine, isopropylamine, butylamine, and amylamine; secondary aliphatic amines such as dimethylamine, diethylamine and diisopropylamine; trimethylamine; Examples thereof include aliphatic tertiary amines such as triethylamine, aliphatic unsaturated amines such as arylamine, alicyclic amines such as cyclopropylamine and cyclobutylamine, and aromatic amines such as aniline.

Examples of mercaptans include methyl mercaptan, ethyl mercaptan, propyl mercaptan, isopropyl mercaptan, aryl mercaptan, benzyl mercaptan and the like.

Examples of the fatty acids include formic acid, acetic acid, propionic acid, butyric acid, valeric acid, isovaleric acid, acrylic acid, crotonic acid and isocrotonic acid.

The deodorizing resin of the present invention can be molded into various forms by a conventional method. For example, it can be molded into a film by using a T-die or a bag-like film by an inflation method or the like. You can Also, molded articles such as cups and containers by ordinary methods such as injection molding method, extrusion molding method, hollow molding method, and vacuum molding method, and foamed molded articles by conventional methods such as hollow molding, foam molding, and calendar molding. It can be led to each molded product such as a packaging material. The deodorant composition was not separated from the molded article using the deodorant resin of the present invention. When a colorant was added to the above deodorant resin, the color tone was extremely good. INDUSTRIAL APPLICABILITY The deodorant resin of the present invention has an excellent deodorizing effect against various malodors and is free from problems such as coloring during use and can be used in a wide range of applications as a deodorant resin with a good appearance.
For example, film, packaging resin, various plastic parts,
It can be used for various purposes such as sheets, containers, furniture, medical products, and materials for deodorant building materials in medical facilities.

In order to explain the present invention in more detail, the deodorizing composition used as a starting material in the present invention will be described in Reference Examples, and the details of the deodorizing resin of the present invention will be described in the following Examples.

In the following reference examples, magnesium aluminometasilicate has a composition ratio: Al ₂ O ₃ .MgO.1.7.
SiO ₂ 7H ₂ O, manufactured by Fuji Chemical Industry Co., Ltd., under the trade name Neusilin ^(R) is meant, and synthetic aluminum silicate has a composition ratio of Al ₂ O ₃ 9SiO ₂ 7H ₂ O. means. The zinc oxide having a loss on ignition of 0.5 to 20% by weight was prepared by firing basic zinc carbonate at 500 ° C. and adjusting the loss on ignition to 0.5 to 20% by weight.

Reference Example 1 0.6 kg of magnesium aluminometasilicate and 1.4 kg of zinc oxide (20% by weight loss on ignition) were mixed by stirring for 20 minutes using a V-type mixer to give a uniform white powder. A composition of

Reference Example 2 0.6 kg of synthetic aluminum silicate and 1.4 kg of zinc oxide (20% by weight loss on ignition) were mixed with a V-type mixer 30 times.
By stirring and mixing for a minute, a uniform white powdery composition was obtained.

Reference Example 3 0.3 kg of magnesium aluminometasilicate, 0.3 kg of synthetic aluminum silicate and zinc oxide (loss on ignition 2
(0% by weight) 1.4 kg was mixed by stirring for 30 minutes using a V-type mixer to obtain a uniform white powdery composition.

Reference Example 4 1.0 kg of magnesium aluminometasilicate and 1.0 kg of zinc oxide (20% by weight loss on ignition) were mixed by stirring for 20 minutes using a V-type mixer to obtain a uniform white powder. A composition of

Reference Example 5 1.0 kg of synthetic aluminum silicate and 1.0 kg of zinc oxide (20% by weight loss on ignition) were mixed with a V-type mixer 30 times.
By stirring and mixing for a minute, a uniform white powdery composition was obtained.

Reference Example 6 0.5 kg of magnesium aluminometasilicate, 0.5 kg of synthetic aluminum silicate and 1.0 kg of zinc oxide (20% by weight loss on ignition) are mixed by stirring for 30 minutes using a V-type mixer. As a result, a uniform white powdery composition was obtained.

Reference Example 7 1.4 kg of magnesium aluminometasilicate and 0.6 kg of zinc oxide (20% by weight loss on ignition) were mixed by stirring for 30 minutes using a V-type mixer to give a uniform white powder. A composition of

Reference Example 8 Synthetic aluminum silicate (1.4 kg) and zinc oxide (ignition loss 20% by weight) (0.6 kg) were mixed with each other using a V-type mixer.
By stirring and mixing for a minute, a uniform white powdery composition was obtained.

Reference Example 9 0.7 kg of magnesium aluminometasilicate, 0.7 kg of synthetic aluminum silicate and zinc oxide (loss on ignition 2
0.6 wt% (0% by weight) was mixed by stirring for 30 minutes using a V-type mixer to obtain a uniform white powdery composition.

Reference Examples 10 to 18 In Reference Examples 1 to 9, zinc oxide was added to give a weight loss of 20% by weight.
The powdery compositions of Reference Examples 10 to 18 corresponding to Reference Examples 1 to 9 were obtained by treating in the same manner as in Reference Examples except that the weight loss was changed to 0.5% by weight.

Reference Example 19 A mixture of 15 kg of magnesium aluminometasilicate and 35 kg of zinc oxide (20% by weight loss on ignition) was added with 150 k of water.
g, and mixed with a stirrer to form a suspension, and then the suspension is spray-dried (rotary atomizer type, heat input temperature 250 ° C., outlet temperature 120 ° C., 8000 rpm) to give a white powder. A composition in the form of a mixture was obtained.

Reference Example 20 15 kg of synthetic aluminum silicate and zinc oxide (loss on ignition 2
(0 wt%) 150 kg of water was added to the mixture of 35 kg, and the mixture was treated in the same manner as in Reference Example 19 to obtain a white powdery composition.

Reference Example 21 7.5 kg of magnesium aluminometasilicate, 7.5 kg of synthetic aluminum silicate and zinc oxide (loss on ignition of 20
Water (150 kg) was added to the mixture (35% by weight) and treated in the same manner as in Reference Example 19 to obtain a white powdery composition.

Reference Example 22 A mixture of 25 kg of magnesium aluminometasilicate and 25 kg of zinc oxide (20% by weight loss on ignition) was added with 150 k of water.
g was added, and the same treatment as in Reference Example 19 was performed to obtain a white powdery composition.

Reference Example 23 To a mixture of 25 kg of synthetic aluminum silicate and 25 kg of zinc oxide (20% by weight loss on ignition), 150 kg of water was added,
Then, the same treatment as in Reference Example 19 was carried out to obtain a white powdery composition.

Reference Example 24 150 kg of water was added to a mixture of 12.5 kg of magnesium aluminometasilicate, 12.5 kg of synthetic aluminum silicate and 25 kg of zinc oxide (20% by weight loss on ignition),
Then, the same treatment as in Reference Example 19 was carried out to obtain a white powdery composition.

Reference Example 25 A mixture of 35 kg of magnesium aluminometasilicate and 15 kg of zinc oxide (20% by weight loss on ignition) was added with 150 k of water.
g was added, and the same treatment as in Reference Example 19 was performed to obtain a white powdery composition.

Reference Example 26 150 kg of water was added to a mixture of 35 kg of synthetic aluminum silicate and 15 kg of zinc oxide (20% by weight loss on ignition),
Then, the same treatment as in Reference Example 19 was carried out to obtain a white powdery composition.

Reference Example 27 Magnesium aluminometasilicate 7.5 kg, synthetic aluminum silicate 17.5 kg and zinc oxide (loss on ignition 2
Water (150 kg) was added to the mixture (0% by weight) and treated in the same manner as in Reference Example 19 to obtain a white powdery composition.

Reference Examples 28 to 36 In Reference Examples 19 to 27, the same treatments as in Reference Examples 19 to 27 are performed except that the zinc oxide having a loss on ignition of 20% by weight is changed to a loss on ignition of 0.5% by weight. Thereby, powdery compositions of Reference Examples 28 to 36 corresponding to the respective Reference Examples were obtained.

[0061]

【Example】

Example 1 1 part by weight of the deodorant composition obtained in Reference Example 4, 100 parts by weight of polyethylene resin (Showa Denko KK-made low-density polyethylene, Showalex 720FS), and 2 parts by weight of calcium stearate were thoroughly stirred with a mixer. After that, the extruder was heated to 210 ° C. to obtain a resin composition in the form of pellets. The obtained resin composition was used as a cylinder with an inner diameter of 65 mm and a screw.
A sheet having a compression ratio of 5.0 is extruded as a sheet from a T-die, and the sheet is biaxially stretched to a thickness of 0.1 m.
m film was obtained.

Examples 2 to 4 Except that the addition amount of the deodorant composition obtained in Reference Example 4 was 10 parts (Example 2), 30 parts (Example 3) and 60 parts (Example 4). A film was obtained in the same manner as in Example 1.

Example 5 1 part by weight of the deodorant composition obtained in Reference Example 5 and 100 parts by weight of polypropylene (PN630 manufactured by Tokuyama Soda Co., Ltd.) were well stirred with a mixer, and the extruder was heated to 210 ° C. After heating, pellets were obtained. Then, the same process as in Example 1 was carried out to obtain a film.

Examples 6 to 8 The addition amount of the deodorant composition obtained in Reference Example 5 was 10 parts (Example 10), 30 parts (Example 11) and 60 parts (Example 1).
A film was obtained in the same manner as in Example 5 except that 2) was used.

Example 9 1 part by weight of the deodorant composition obtained in Reference Example 24 and 100 parts by weight of polypropylene (PN630 manufactured by Tokuyama Soda Co., Ltd.) were well stirred with a mixer, and the extruder was heated to 210 ° C. After heating, pellets were obtained. Then, the same process as in Example 1 was carried out to obtain a film.

Examples 10 to 12 Except that the amount of the deodorant composition obtained in Reference Example 24 was changed to 10 parts (Example 10), 30 parts (Example 11) and 60 parts (Example 12). A film was prepared in the same manner as in Example 9.

(Test Examples 1 to 12) Films obtained from the deodorizing resin of the present invention obtained in Examples 1 to 12 (hereinafter,
The deodorizing ability of the subject) was determined by the following test method.

The results are shown in Table 1.

[0069]

[Table 1]

The removal rate of 100% shown in Table 1 above is 1
It means more than 00%. That is, in the method of testing the deodorizing ability for each malodorous substance, there is a limit to the amount of measurement and the like on the device, and it can be assumed that the deodorizing effect is actually higher.

(Test Method 1) Ammonia: Subject 5.
0 g was put in an air collection bottle, and then ammonia gas (about 1,
000 ppm). Samples were taken over time, the residual concentration was measured using a detector tube, and the removal rate was determined.

(Test method 2) Hydrogen sulfide or mercaptans: 5.0 g of a test sample was placed in an air collection bottle, and then hydrogen sulfide or mercaptan (about 1,000 ppm) was sealed. Samples were taken over time, the residual concentration was measured using a detector tube, and the removal rate was determined.

(Test Method 3) Amines: Subject 5.0
After g was put in an air collection bottle and a vacuum was applied, 5 μl (415 ppm) of trimethylamine was injected and the pressure was returned to atmospheric pressure. After that, samples were taken over time, the residual concentration was measured by gas chromatography, and the removal rate was obtained.

(Test Method 4) Fatty Acids: Subject 1.0
After adding g to a collection bottle and applying a vacuum, isovaleric acid 1.2
After injecting μl (262 ppm), the pressure is returned to atmospheric pressure. Then, samples were taken over time, the residual concentration was measured by gas chromatography, and the removal rate was obtained.

Comparative Example 1 A resin was obtained in the same manner as in Example 1 except that natural zeolite was used in place of the composition obtained in Reference Example 4.

Comparative Example 2 A resin was obtained in the same manner as in Example 1 except that zinc oxide (purity: 99.9%) was used in place of the composition obtained in Reference Example 4. .

Comparative Example 3 A resin was obtained in the same manner as in Example 5, except that natural zeolite was used instead of the composition obtained in Reference Example 4.

Comparative Example 4 A resin was obtained in the same manner as in Example 5 except that zinc oxide (99.9% product) was used instead of the composition obtained in Reference Example 4.

Comparative Example 5 A resin was obtained in the same manner as in Example 9 except that natural zeolite was used instead of the composition obtained in Reference Example 4.

Comparative Example 6 A resin was obtained in the same manner as in Example 10 except that zinc oxide (purity: 99.9%) was used instead of the composition obtained in Reference Example 4.

The resin thus obtained was tested for its deodorizing effect according to the method of the above-mentioned test example, and the removal rate was obtained. The results are shown in Table 2.

[0082]

[Table 2]

[0083]

According to the present invention, ammonia, amines,
Provides a deodorant resin that can efficiently remove a wide variety of malodors derived from hydrogen sulfide, mercaptans, fatty acids, etc., does not cause problems such as coloring, and can be easily and widely used for various malodors We were able to.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Soichiro Ami 927 Hirono, Kamiichi-machi, Nakashinagawa-gun, Toyama Prefecture (72) Inventor Tatsuo Murakami 402-5 Morisiri, Kami-shi, Nakashinkawa-gun, Toyama Prefecture (72) Inventor Ohsako Kiyotsugu 8-2-2-22 Takamoridai, Kasugai City, Aichi Prefecture 506 (72) Inventor Shigetoshi Mano 13-2, Somajiji Ekimaecho, Ibaraki City, Osaka Prefecture (72) Inventor Toku Toda 1 Namikawa, Oimachi City, Kameoka City, Kyoto Prefecture No. 303, 1-111 (72) Inventor Yasuhiro Matoba 3-125, 105, Meikita-cho, Mozu, Sakai City, Osaka Prefecture

Claims (3)

[Claims] 1. A formula of Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (wherein x is 0.3 to ₃ and y is a number of 0.3 to ₃ ). A deodorizing resin comprising a deodorizing composition represented by magnesium aluminate silicate and zinc oxide having a loss on ignition of 0.5 to 20% by weight. 2. An aluminum silicate represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) and an ignition loss of 0.5. A deodorizing resin, which contains a deodorizing composition consisting of 20 wt% of zinc oxide. 3. The formula Al ₂ O ₃ .xMgO.ySiO ₂ .mH ₂ O (I) (wherein x represents 0.3 to ₃ and y represents a number of 0.3 to ₃ ). Magnesium aluminate silicate represented by the formula and aluminum silicate represented by the formula Al ₂ O ₃ .zSiO ₂ .nH ₂ O (II) (wherein z represents a number of 1 to 20) and ignition. A deodorizing resin containing a deodorizing composition comprising zinc oxide in a weight loss of 0.5 to 20% by weight.