JPH02202575A - Sustained release structure - Google Patents

Abstract

PURPOSE:To provide the structure capable of diffusing a volatile substance over a long period and useful for sheets, packaging materials, etc., carrying a specific swellable mica and a volatile substance on a carrier. CONSTITUTION:(A) Swellable mica treated with a surfactant and/or a lamellar crystal substance having one or more selected from organic cations of formulas I (R<1>, R<2> and R<3> are H, phenyl, benzyl, xylyl, methoxyphenyl, ethoxyphenyl or alkyl), II (R<4>, R<5>, R<6> and R<7> are phenyl, benzyl or alkyl) and III (R<8> is alkyl) to give a hydrophobic property and (B) a volatile substance are carried on (C) a carrier to provide the objective structure. It is preferable that the alkyl groups of formulas I, II and III are 1-18C organic cations and the lamellar crystal substance is at least one of smectite, vermiculite and chlorite.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention is directed to a composite of a vaporizable substance with poor sustainability of efficacy and a hydrophobized (layered crystal and/or swellable mica). This invention relates to a sustained-release structure that improves the vaporizable substance with long-lasting efficacy by impregnating a carrier with the substance.

BACKGROUND OF THE INVENTION Traditionally, sustained release structures include inclusions in which a volatile substance is incorporated into the molecular cavity of anhydrous crystalline maltose, hydrated crystalline maltose, or cyclodextrin in the presence of water. Since these clathrates are obtained as a solidified product, they are crushed before use.

The emission of volatile substances by this clathrate powder occurs only in the part of the clathrate that comes into contact with the outside air, regardless of whether it is used alone or in combination with a carrier, and the emission is also determined by the inner diameter of the molecular cavity. As a result, the volatile substances encapsulated within a short period of time are dissipated.

In addition, the powder of these clathrates kneaded into resins is dispersed only by the particles that come out on the resin surface, and the dispersion of the clathrates existing inside the resin cannot be expected. There isn't.

Further, sustained release structures using porous carriers include those using organic porous carriers and those using inorganic porous carriers.

The former includes nylon, acrylic, and polyester.

There are porous spheres made of synthetic resins such as polypropylene and polyethylene, and porous spheres made of cellulose and coconut shell activated carbon.The latter include zeolite, talc,
There are porous carriers made of kaolin, synthetic aluminum silicate, diatomaceous earth, silica, and the like.

The adsorption amount of volatile substances in both the former and latter carriers is small, about 20 to 100% of the carrier ring weight, and even when volatile substances are dissipated, the pore size is determined only in the part of the carrier that comes into contact with the outside air. Since it is carried out at the bottom, long-term radiation cannot be expected even when used in combination with m-dactyly.

In addition to the above, there are microcapsules that are not sustained release structures. This product has a volatile substance sealed inside the resin shell wall, and the volatile substance is released only when the shell wall is broken.

However, since the release of volatile substances accompanying the destruction of the shell wall of microcapsules ends in a short period of time, it is not possible to expect long-term release of volatile substances from microcapsules.

(Problems to be Solved by the Invention) In view of the above circumstances, the present invention aims to provide a sustained release structure capable of dissipating volatile substances over a long period of time.

(Means for Solving the Problems) In order to achieve the object described above, the sustained release structure of the present invention is a layered crystal structure having at least one of the organic cations represented by the following general formulas A to C. and/or a carrier containing one or more types of swellable mica hydrophobized with a surfactant and a volatile substance.

general formula (In the formula, 1.R2 and 3 are %H1 phenyl groups.

Benzyl group, xylyl group, methoxyphenyl group.

One or more types selected from the group of organic cations represented by (ethoxyphenyl group or alkyl group).

(R4, R5, R8 and R7 in the formula are phenyl groups.

One or more cations selected from a wide variety of cations represented by benzyl and alkyl groups.

By enveloping a volatile substance to form a complex with the volatile substance, and impregnating this complex with a carrier, the volatile substance can be released in a sustained manner, making it possible to release the volatile substance over a long period of time.

In the above-mentioned sustained release structure, typical constituents of the layered crystal having organic cations from general formula (1) to the above are as follows.

As the organic cations represented by the general formula (1), C
,2H25NH,+, CA0HzNH4”, eHH
One or more cations selected from the group of cations represented by 3+ (R8 in the formula is an alkyl group).

That is, this sustained release structure is made of a layered crystal that absorbs the cations represented by No. 1 to C and/or a swellable mica hydrophobized with a surfactant.
Ci(.

The organic cations represented by the general formula ([) are -
As organic cations represented by formula (111') (
These organic cations can be singular or plural.

In addition, as a layered crystal body having cations, C, (
Montmorillonite, Magnesium montmorillonite, Iron montmorillonite, Iron Magnesium montmorillonite, Idelite, Aluminum Ambidellite, Nontronite, Aluminum Nontronite, Saponite,
smectite consisting of aluminum saponite and hectorite).

Vermiculite and chlorite.

These layered crystals have Na+ as the exchange focused thione.
, K+, Mf2+, and Ca2+, and when these inorganic cations are ion-exchanged with the organic cations listed below, a layered crystal containing organic cations is formed.

In addition, during ion exchange, Mg2+, which has a small ionic radius,
is replaced in advance with Na+, which has a large ionic radius, to facilitate ion exchange with existing cations.

Among the above-mentioned layered crystals, montmorillonite, hectorite, and vermiculite, which have a large cation exchange capacity, are particularly effective. These layered crystals can be used alone or in combination.

Moreover, the following are typical examples of the constituent components of the swellable mica hydrophobized with a surfactant.

As a nonionic surfactant, 0, ,H2,0OOCH,CH20HH5 OH3 CH2-OH.

and CuH5sCOO-(C2H40)BH.

As an anionic surfactant, It is.

As a cationic surfactant, Cl2f(25Nf(2.Cl-l3COOH, C,2
H25NH2・CH3(CI-I2)4COOfLHs C1rH3sOONHCH2-N-IC>(J' Theal.

Among these surfactants, anionic surfactants and cationic surfactants are most effective.

The swellable micas that are hydrophobized with the above-mentioned surfactants are sodium tetrasilicon mica and taeniolite.

These swellable micas can be used alone or in combination.

Volatile substances include fragrances and insecticides.

One or more types selected from the group of repellents, spices, fungicides, and anti-inflammatory agents.

Typical examples of the above-mentioned volatile substances include the following.

The fragrances are Jasmine, Reineko, Ryunada, Beaver, Jasmine, Rose, Ylang Ylang, Neroli, Bloom, Avinis oil, Cedarwood oil, Kyara, and Luo Guo.

Manaban, Managa 9 Sunmon Tara, Sasora, Sandalwood,
labdanum, patchouli oil, vetiver oil.

Citronella oil, orange oil, lemon oil, lime oil.

Apple, passion fruit and lavender oil.

Peppermint oil, rosemary oil, geranium oil.

Frankincense, Medication, Dibutol and Dibrul.

These fragrances can be used alone or in combination.

Insecticides include 3-methyl-1,5-bis(2,4-xylyl)-triazapenta-14-diene, dimethyl-(2
,4-dichlorophenyl)-thiophosphate, 0.0
-dimethyl-0-(5-methyl-4nitrophenyl)thiophosphate, 2-isopropylphenyl N-methylcarbamate, 0. ．． 0-dimethyl-〇-[3-methyl-4-(methylthio)phenyl]thiophosphate,
3,5-xylyl N-methylcarbuff-1-,1,3-
Bis(carbamoylthio)-2-(N,N-dimethylamino)prohane m salt, hexakis(β,β-dimethylphenethyl)distantuxane, 2-chloro-1-(2
, 4-dichlorophenyl) vinyl diethyl phosphate, pyrethrin, allethrin and dimethyl 2,2-dichlorovinyl phosphate. These insecticides can be used alone or in combination.

The repellents are diethyl toluamide, di-normal propyl isocincomelonate, N-octylbicyclohebutene dicarboximide, ethylene glycol monoallyl ether, lemongrass oil and dibutyl succinate.

These repellents can be used alone or in combination.

Spices are ginger, nutmeg, pepper cinnamon, cloves, vanilla and wasabi.

These spices can be used alone or in combination.

The disinfectant is lauryldimethylbenzylammonium chloride, butyl paraoxybenzoate, ethyl paraoxybenzoate, methyl paraoxybenzoate, 5-chloro-2
-methyl-4-isothiazonon-3-one and 2-methyl-4-isothiazolin-3-one. These fungicides can be used alone or in combination.

Rust inhibitors are dicyclohexylammonium nitrite and benzotriazole. These rust preventives can be used alone or in combination.

In addition, when these volatile substances are in solid form, a solution or an extract of the volatile substance may be used. Note that these volatile substances are not limited to those listed above.

The groove component of the carrier is an organic substance and/or an inorganic substance.

The plaster carrier is one or more selected from the group of fibers, paper, resins, cosmetics, and foods. Typical examples of mechanical carriers include the following:

Fibers include cotton, linen, silk, wool, nylon, polyester,
Acrylic, carbon, polypropylene, polyimide, acetate, vinylidene chloride and rayon. These fibers can be used alone or in combination.

Paper is a product made from pulp and/or synthetic fibers.

Resins include starch, casein, pine resin, gum arabic,
gelatin, silicone, sodium alginate, gluten,
Agar, locust bean gum, guar gum alginate, paraffin, gum tragacanth.

Natural rubber latex, acrylonitrile-styrene copolymer, ethylene-vinyl acetate copolymer vinylidene chloride, polyvinyl chloride, chlorinated polyethylene, chlorinated polypropylene, vinyl acetate, butadiene, fluororesin, polyamide 1. polyethylene, polyethylene terephthalate, polycarbonate, polystyrene, polypropylene,
Polybutylene terephthalate, polymethyl methacrylate.

Epoxy acrylate, phenolic resin, polyurethane, melamine resin, urea resin, epoxy resin, vinylidene chloride latex, polyvinyl alcohol, carboxymethyl cellulose, cellulose acetate, nitrocellulose, ethyl cellulose.

Oligoester acrylate, polyglutamic acid resin,
These are maleic acid resin and acrylic resin.

These resins can be used alone or in combination.

Cosmetics include nail enamel, toothpaste, hair conditioner, and cosmetic soap.
Lipstick, foundation, cosmetic oils.

It is an anti-armpit odor agent and a paste perfume.

Food products include processed animal and/or vegetable protein products such as fish paste products, 9 canned and bottled products, and ham.

Sausage, tsukudani, butter, cheese, and processed carbohydrate products such as sweets, seasonings, noodles, and bread.

Beverages and Koya tofu. These foods can be used alone or in combination.

Inorganic carriers are synthetic aluminum silicate, zeolite, diatomaceous earth, cypress, and portland cement.

Alumina cement and (Al2O3, ZnO, TiO2
゜5n02.5iOz, 5i5N4 and/or Si
It is a porous ceramic E7 whose main component is C). These inorganic carriers can be used alone or in combination. Note that these carriers are not limited to those mentioned above.

The sustained release structure of the present invention obtained in this manner can be used in sheets, packaging materials, dust collection bags, printing inks, wall coverings, clothing, bedding, paints, air conditioning filters, toothpaste, toothpaste, nail polish, and When used in lipsticks and the like, it achieves long-term effects by slowing the release of volatile substances.

(Effects of the Invention) Because of the above configuration, the sustained release structure of the present invention is easy to manufacture and use, and is able to exhibit long-term effects safely and economically. .

Example 1 Rayon nonwoven fabric with fabric weight (f/m2) 30y and fabric weight 5
There is a sheet that is laminated with y polyethylene film. The sheet was coated with all of the following chemicals A to E, and hung in a room with a floor area of 43 m2 at an average temperature of 25°C and left to dry. After 24 hours of being left to stand, five panelists judged the strength of the lemon fragrance's residual scent.

However, chemicals A, B, (II! and E) shall be applied to the entire surface of a 1 m2 sheet using a bar coater, and after 24 hours, a 20 cm square section shall be cut out from the center and used for testing. The entire surface of the sheet shall be coated with a knife and subjected to the test.

Drug) [: 0.5% ethyl alcohol solution of lemon flavor 20
g.

B: A mixture of 1 part lemon flavor and 20 parts resin.

C: Lemon flavored 04% ethyl alcohol bath solution 2.5y
A mixture of 3 g of synthetic aluminum silicate powder adsorbed with 20 g of resin.

D: Adsorbent of montmorillonite 2y having 0121-25NH5+ as a cation and lemon flavor 1y.

E; Resin 23y0 containing montmorillonite powder 2y having C, 2H2sNH5+ as the cation and 1 g of lemon flavor Lemon flavor: Lemon-1314 (Product of Soda Perfume Co., Ltd.) Resin: Polysol 5-so.

(Showa Kobunshi Co., Ltd. product) vinyl acetate resin (50% solids emulsion) Results () are the number of judges on the panel.

A: No odor after 24 hours (5 people).

B: No odor after 24 hours (3 people), very weak (2 people). No odor after 28 hours (5 people).

C: Weak odor after 24 hours (5 people), no odor after 48 hours (5 people).

D: Very strong even after 240 hours (5 people), strong even after 360 hours (5 people), weak after 408 hours (5 people)
people), 432 hours later, very weak (5 people), 456
No odor after some time (5 people).

E: Very strong even after 1440 hours (5 people), 158
Strong after 4 hours (5 people), easily felt after 1644 hours (3 people), weak (2 people). After 1704 hours, weak (2 people), very weak (3 people). No odor after 1126 hours (5 people).

Example 2 20 f slices of fresh wasabi and ethyl alcohol (98% purity)
) 100c:C in a glass bottle, tightly stoppered, and allowed to stand for 30 days. After 30 days, the contents of the glass bottle are filtered and the wasabi flakes are removed to obtain wasabi extract. Use this wasabi extract to prepare the following soy sauces containing wasabi extract from F to H, and 24 hours after mixing, pour the soy sauce into a petri dish.
The spiciness and aroma were judged by five panelists every 10 minutes from the start of the test. The soy sauce containing wasabi extract was placed in a glass bottle and sealed tightly until it was used for the test. Further, the test was conducted in a room with an average temperature of 25° C. in an open Petri dish, and after 60 minutes had elapsed, the liquor that still had an aroma was retested every 3 hours thereafter.

Soy sauce with wasabi extract F: 2g of wasabi extract and 20f of soy sauce! A compound with.

G: A blend of α-type cyclodextrin powder 82 containing 25% wasabi extract and soy sauce 20F.

II: A mixture containing 2y of wasabi extract and 4y of teniolite powder hydrophobized with 02oHuO8O3Na in 20y of soy sauce.

Results: The number in parentheses is the number of judges on the panel.

Even after F-iO minutes had passed, the spiciness and aroma were very strong (5 people). After 20 minutes, both the spiciness and aroma were very weak (4 people), and there was no spiciness and aroma (1 person). After 50 minutes, there was no spiciness or aroma (5 people).

G: Even after 20 minutes, the spiciness and aroma are very strong (5 people). After 30 minutes, both the spiciness and aroma are strong (2 people), and both the spiciness and aroma are weak (3 people).

After 40 minutes, both spiciness and aroma were very weak (5 people). 5
After 0 minutes, 3 people found it mildly spicy and had no aroma (2 people had no spiciness or aroma).

After 60 minutes, there was no spiciness or aroma, 5 people].

IT: Even after 60 minutes, the spiciness and aroma were very strong (5 people). Even after 240 minutes, the spiciness and aroma were still strong (5 people). After 420 minutes, both spiciness and aroma were weak (3 people), and both spiciness and aroma were very weak (2 people). After 600 minutes, there was no spiciness or aroma (5 people).

Example 3 Samples were prepared by applying the following chemicals to the entire 20 cm square sheet of Example 1 using a bar coater, and a repellent test against the larvae of the Japanese stag beetle was conducted as follows. It was done by method. The sheets coated with the chemicals were hung in a room with an average temperature of 25"C and left to dry. After 24 hours, the sheets were used as specimens for testing.

Drug T: A blend of 1 da di-normal propyl isocincomelonate and 10!7 polyamide resin solution.

J: A blend of di-normal propyl isocincomelonate 1y, spherical porous silica powder 2y, and a polyamide resin solution 10f.

K: Polyamide resin solution 10Lj is impregnated with di-n-propyl isocincomelonate 1y and hectorite powder 2y having (C6H5)3NH'' as an organic cation.

Polyamide resin solution: 30% solution of Bratabond M995 (product of Bhon Rilsan Co., Ltd.).

The solvent is a mixed solvent of methanol and toluene, and the mixing ratio is 1:1 by volume.

Method of repellent test Paste the specimen on one half of a plywood board measuring 2 Q cm in length and 4 Q cm in width, and paste the control specimen on the other half.A plywood board with a diameter of g cm and a height of 6 cm is pasted so that the specimen and control specimen are equally included. Place a cm glass ring. Fifteen larvae of the beetle were placed in this glass ring, and the number of insects that interacted with the sample was counted every 12 hours, and the repellency index was calculated using the following formula.

However, no feeding was conducted during the test period. Note that the number of insects on each specimen is the total number in four repeated tests, and the control specimen is the unprocessed sheet of Example 1.

However, if a negative value was obtained, the repellency index was set as 0.

Results ■: After 12 hours, the number of insects in the sample area is 32, the number of insects in the control sample area is 28, and the repellency index is 0°J: After 12 hours, the number of insects in the sample area is 13, and the number of insects in the control sample area is 47. , repellency index ≠ 72° After 24 hours, the number of insects in the sample area is 45, the number of insects in the control sample area is 15, repellency index 0°K: After 12 hours, the number of insects in the sample area is 0, the number of insects in the control sample area Number 60, repellency index 100%.

After 24 hours, the number of insects in the sample area was 0, the number of insects in the control area was 60, and the repellency index was 100%.

After 132 hours, the number of insects in the sample area was 0, the number of insects in the control area was 60, and the repellency index was 100%.

After 144 hours, the number of insects in the sample area was 11, the number of insects in the control area was 49, and the repellency index was ≠ 18%.

After 156 hours, the number of insects in the sample area is 30, the number of insects in the control sample area is 30, and the repellency index is 0°.Example 4 There is a concrete balcony that is a hangout for pigeons. This veranda is 3m long and 6m wide, and around 50 pigeons can be seen at any time during the day. Divide this veranda into three by laying blocks, and sprinkle the entire amount of the following chemicals from L to N in the center of each section.
The number of pigeons flying into each area was monitored.

Inspection was conducted for one hour every 24 hours, and the test progressed until five or more pigeons per area.

Drug L dipropylene glycol monoprobyl ether 5g
and ethylene glycol monoallyl ether 5y.

M: 10'I chemical paste and diatomaceous earth fired product (dimensions 2
Adsorbate with mm pellet) 30y.

N: 10f as a drug and several cations (CeHs)
3g of vermiculite powder having 3NH+ is added to 30g of fired diatomaceous earth.

Result area: 0 birds for 48 hours immediately after spraying, 3 birds at 49 hours, and 23 birds at 72 hours.

M section: Immediately after spraying, one bird flew in, but even if it flew right away, there was no bird for 168 hours, 5 birds at 169 hours, and 16 birds at 193 hours.

Section N: 0 birds at 840 hours immediately after spraying, 3 birds at 841 hours, and 17 birds at 864 hours.

Procedural amendment (voluntary) Director General of the Japan Patent Office Yoshi 1) Tsuyoshi Moon 1, Indication of the case 1999 Patent Application No. 21811 "Patent Application" and "Detailed Description of the Invention" column 5 of the specification, Contents of the amendment (1) Paragraph 4 of the “Patent Application” Postal code of the patent applicant: r5
40J is corrected to r541J.

Applicant: Shoko Kagaku Kenkyusho Co., Ltd. (2) In the specification, page 5, line 20, and page 6, line 3, the words "vaporizability" are amended to read "volatility."

(3) In the first line of page 18 of the specification, the word "carbon" is amended to read "carbon fiber."

(Margin below) ■ 2.

Procedural Amendment Spontaneous April 6, 1990 Display of the Case 1999 Patent Application No. 2 Name of the Invention Sustained Release Structure No. 1811 Person making the amendment Relationship to the case Patent Applicant Chiu Ouk L Ranomachi Address Chuo-ku, Osaka City 3-1-7 Hirano-cho Name Shoko Kagaku Kenkyujo Co., Ltd. 5 Contents of the amendment As shown in the attached sheet, "Example 5" is inserted on page 29, line 19 of the specification Example 5 30 cm square hard vinyl chloride The following chemical was applied to one side of the board, and the board was exposed outdoors for one week, then lowered to a distance of 50 cm below the sea surface for an algae prevention test, and confirmation was made every week.

Drug 0, dipropylene glycol monopropyl ether 1g
2 g of a mixture consisting of 1 g of ethylene glycol monoallyl ether and 98 g of a 20% toluene solution of chlorinated polypropylene (hereinafter abbreviated as "resin liquid") P: 1 g of impropylene glycol monobrobyl ether
and 1 g of ethylene glycol monoallyl ether (C,
2.4 g of a mixture with 0.4 g of smectite having H, L, N H' was mixed with 497.6 g of resin liquid, and the mixture was added to 2 g of cetostearyl alcohol ester of bovine sanoic acid to g Q, 2-ethyl. 2.4 g of a mixture with 0.4 g of smectite having ``(C@H5)sNH'' was added to ``Resin liquid J97.
6g of the mixture, 2g of R dipropylene glycol monopropyl ether, 1g of ethylene glycol monoallyl ale and (CsH5
After dispersing 2.4 g of a mixture with 4 g of smectite Q having LsN H"" in a molar ratio of 2.4 g of a eutectic mixture of palmitic acid and stearic acid = 1.1, this material was mixed into a "resin liquid. J95.2g was mixed with 2g of the mixture.Results! No change was observed in the weekly volume for all 5 plates including the untreated product.

At the 2-week mouth, adhesion of algae was observed on both sides of the untreated product and the rQJ-treated product;

No algae adhesion was observed on "R".

At the mouth of the 3-week mouth, in addition to algae, the untreated product and the rOJ-treated product had Fujibuki adhesion on both sides, and the "Q" treated product had algae attached to the untreated area, and the "PJ" No change was observed in "R".

After 5 weeks, both sides of the mouth were contaminated with algae and barnacles, except for those treated with rpJ and rRJ.

The degree of contamination is as follows: untreated) rOJ > rQJ treated product The above test period was a 5-month period from November to March of the following year, when seaweed was sown, and the test area was located at a depth of 5 meters adjacent to the seaweed cultivation area. In addition, the hard vinyl chloride board is black and has a thickness of 2 mm (blank below).Algae adhesion was observed in the untreated part of "P" at the 10th week, but the treated part was No deposits were observed on both sides of rQ.

Claims (19)

[Claims] (1) One or more layered crystals having at least one of the organic cations represented by the following general formulas A to C and/or swellable mica hydrophobized with a surfactant and a volatile substance. What is claimed is: 1. A sustained release structure comprising a carrier containing: General formula (A) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (I) (R^1, R^2 and R^3 in the formula are H, phenyl group, benzyl group, xylyl group, methoxyphenyl group, One or more types selected from the group of organic cations represented by (ethoxyphenyl group or alkyl group). (B) ▲There are mathematical formulas, chemical formulas, tables, etc.▼(II) (In the formula, R^4, R^5, R^6 and R^7 are phenyl group, benzyl group and alkyl group) One or more types selected from the group of organic cations. (C) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (III) One or more types selected from the group of organic cations represented by (R^8 in the formula is an alkyl group). (2) The sustained release according to claim 1, wherein the alkyl group in general formulas (I), (II) and (III) is an organic cation having a carbon number represented by an integer from 1 to 18. sexual constructs. (3) Claim 1, wherein the layered crystal body is at least one of smectite, vermiculite, and chlorite.
The sustained release structure described in Section 1. (4) The sustained release structure according to claim 1, wherein the surfactant is at least one of a nonionic surfactant, an anionic surfactant, and a cationic surfactant. (5) The sustained release structure according to claim 4, wherein the nonionic surfactant is at least one of a polyhydric alcohol type nonionic surfactant and a polyethylene glycol type nonionic surfactant. (6) The sustained release structure according to claim 5, wherein the polyhydric alcohol type nonionic surfactant is at least one of a fatty acid ester and a fatty acid alkanolamide (glycerin, pentaerythritol, sorbitol, and sorbitan). (7) The sustained-release structure according to claim 6, wherein the fatty acid is a higher fatty acid having an alkyl group represented by an integer from 6 to 18 carbon atoms. (8) A polyethylene glycol type nonionic surfactant has the symbol “HLB” which indicates the balance between hydrophilicity and lipophilicity.
The sustained release structure according to claim 5, wherein the numerical value of is from 1 to 12. (9) The sustained release structure according to claim 4, wherein the anionic surfactant is at least one of an earth metal salt of an alkylbenzenesulfonic acid and a higher alcohol phosphoric acid diester sodium salt. (10) The sustained release structure according to claim 9, wherein the alkyl is an integer alkyl group having 12 to 20 carbon atoms. (11) Earth metal salts include Na salt, Ca salt, Mg salt and B
The sustained release structure according to claim 9, which is at least one of a salt. (12) The sustained release structure according to claim 9, wherein the higher alcohol has an integer of carbon atoms from 6 to 18. (13) The sustained release structure according to claim 4, wherein the cationic surfactant is at least one of a higher alkylamine salt type and a quaternary ammonium salt type. (14) The higher alkyl amine salt is at least one of a primary amine salt, a secondary amine salt, and a tertiary amine salt in which the number of carbon atoms in the alkyl group is an integer from 12 to 18. 14. The sustained release structure according to item 13. (15) The sustained release structure according to claim 1, wherein the swellable mica is at least one of sodium tetrasilicon mica and taeniolite. (16) The sustained release structure according to claim 1, wherein the volatile substance is at least one of a fragrance, an insecticide, a repellent, a spice, a bactericide, and a rust preventive. (17) The sustained release structure according to claim 1, wherein the carrier is an organic substance and/or an inorganic substance. (18) The sustained release structure according to claim 17, wherein the organic substance is one or more selected from the group of fibers, paper, resins, cosmetics, and foods. (19) The sustained release structure according to claim 17, wherein the inorganic substance is one or more selected from the group of silicate minerals, cement, gypsum, and ceramics.