JPH07268383A - Aromatic composition - Google Patents

Abstract

PURPOSE:To obtain an aromatic composition, containing perfume particles encapsulated, etc., in an inorganic polymeric matrix produced from a metallic alkoxide, excellent in sustained release properties, capable of maintaining the aromaticity for a long period and providing aromatic furniture, etc., by mixing thereof in a printing ink, etc. CONSTITUTION:This composition is obtained by encapsulating and/or including perfume particles in an inorganic polymeric matrix produced from a metallic alkoxide [preferably Si(OC2H5)4), Al(O-iso-C3H7)3, Ti(O-iso-C3H7)4, etc.]. Furthermore, the perfume is preferably an animal or a vegetable natural perfume or a synthetic perfume.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fragrance composition and a method for producing the fragrance composition, and more particularly to a fragrance composition containing a perfume molecule encapsulated and / or clathrated to obtain a persistent fragrance property. And a manufacturing method thereof.

[0002]

2. Description of the Related Art In recent years, attempts have been made to add a fragrance (aromatic substance) to paints and printing inks to impart fragrance to the paints and printing inks after coating and drying. Usually, paints, printing inks, etc. are obtained by dissolving a film agent such as oil, natural resin or synthetic resin in a solvent and adding a pigment or a dispersant to this solution. For example, a fragrance is added to these paints or printing inks to prepare a fragrance-containing paint (or ink), and after applying this, heating or allowing it to stand in the air causes the solvent to volatilize and the resin component containing the fragrance to be added. Is fixed. However, although a fragrance is temporarily obtained by simply mixing the fragrance with paint or printing ink, the fragrance is volatilized with the solvent, so that the fragrance is not maintained for a long time. In particular,
If the coated or printed surface is heated, the fragrance will easily be lost.

On the other hand, microencapsulation of perfume has been attempted. For example, by coating the perfume molecules with a film of gelatin, polyvinyl alcohol (PVA), etc. by the coacervation method, the particle size of 10 to 100 can be obtained.
A μm microencapsulated perfume is obtained. Such microencapsulated fragrance has already been commercialized.
However, since the perfume in this microcapsule is sealed with the above-mentioned gelatin or PVA film, it does not give off a scent when it is manufactured. When the capsule membrane is destroyed by physical force, it emits a scent for the first time.
When the capsule is broken, the fragrance is released at once, and the released fragrance evaporates in a short time. In other words, after the microcapsules are destroyed, long-term aroma is not maintained.

[0004]

The present invention is intended to solve the above-mentioned problems of the prior art, and its objects are as follows: 1) Mixing with printing inks, paints, print materials for clothing, etc., Using this, for example, aromatic furniture, clothing, cosmetics, building materials, magnetic cards such as telephone cards,
To provide a fragrance composition having a sustained release property, which can be prepared; 2) A fragrance composition in which a perfume component is encapsulated and / or included in an inorganic or complex polymer compound matrix. Providing a fragrance composition in which the perfume molecule can be gradually released over an extended period of time;
And 3) to provide a method for producing the above-mentioned excellent aromatic composition and sustained-release composition.

[0005]

Means and Actions for Solving the Problems The inventor believes that if a perfume molecule can be encapsulated or included in a porous polymer matrix, an aromatic composition excellent in sustained release can be obtained, The preparation of an aromatic composition using such a polymer was investigated, and the present invention was completed.

The fragrance composition of the present invention contains perfume particles encapsulated and / or included in an inorganic polymer compound matrix formed from a metal alkoxide. The fragrance composition of the present invention contains perfume particles encapsulated and / or included in a composite polymer matrix formed from a metal alkoxide and a silane coupling agent.

The fragrance composition of the present invention contains perfume particles encapsulated and / or included in a complex polymer matrix formed from a metal alkoxide, an organic monomer and a silane coupling agent.

The present invention is a method for producing an aromatic composition in which perfume particles are encapsulated and / or clathrated in an inorganic polymer compound matrix, which comprises a solution or dispersion containing a metal alkoxide, a perfume and water. A step of adding a sol-gel method acid catalyst to the liquid to hydrolyze the metal alkoxide; and adding a sol-gel method base catalyst to the obtained reaction mixture to polycondense the hydrolyzate to give an inorganic polymer compound. Forming and encapsulating and / or encapsulating the perfume particles in a matrix of the inorganic polymer compound.

The present invention is a method for producing an aromatic composition in which perfume particles are encapsulated and / or included in a composite polymer compound matrix, which comprises a metal alkoxide, a silane coupling agent, a perfume and water. A step of adding a sol-gel method acid catalyst to a solution or a dispersion liquid containing the sol-gel method to hydrolyze the metal alkoxide and the silane coupling agent; and adding a sol-gel method base catalyst to the obtained reaction mixture, The step of polycondensing the decomposed product to form a composite polymer compound, and encapsulating and / or encapsulating the perfume particles in a matrix of the composite polymer compound is included. The present invention relates to a method for producing an aromatic composition in which perfume particles are encapsulated and / or clathrate-encapsulated in a composite polymer compound matrix, which is a solution containing a metal alkoxide, a silane coupling agent, a perfume and water. Alternatively, a step of adding a sol-gel method acid catalyst to the dispersion to hydrolyze the metal alkoxide and the silane coupling agent; a step of adding an organic monomer to the obtained reaction mixture; and a reaction mixture containing the organic monomer. Sol
By adding a gel-type base catalyst and irradiating at least one of ultraviolet ray and electron beam, polycondensation of the hydrolyzate and polymerization of the silane coupling agent hydrolyzate and the organic monomer to form a complex polymer compound. Then, a step of encapsulating and / or encapsulating the perfume particles in a matrix of the composite polymer compound is included.

The fragrance used in the composition of the present invention may be any of animal natural fragrance, plant natural fragrance and synthetic fragrance. These are the metal alkoxides described below.
It is used in an amount of 1 to 300 parts by weight, preferably 50 to 200 parts by weight, based on parts by weight. When it is less than 1 part by weight, an aromatic composition having a desired aromatic property cannot be obtained. It is difficult to microencapsulate perfume in amounts above 300 parts by weight.

The metal alkoxide used in the composition of the present invention includes metal oxides such as alumina, silica, titanium (IV) oxide and zirconium (IV) oxide, methanol,
It can be obtained by adding a known alcohol such as ethanol or isopropanol. Examples of such a metal alkoxide, _{e.g., Si (OC 2 H 5)} 4, Al (O- iso-C 3 H 7) 3, Ti (Oi
so-C ₃ H ₇ ) ₄ , Zr (OtC ₄ H ₉ ) ₄ , Zr (OnC ₄ H ₉ ) ₄ , Ca (OC ₂ H ₅ )
₂ , Fe (OC ₂ H ₅ ) ₃ , V (O-iso-C ₃ H ₇ ) ₄ , Sn (OtC ₄ H ₉ ) ₄ , Li
_{(OC 2 H 5), Be} (OC 2 H 5) 3, V (O-iso-C 3 H 7) 4, P (OC 2 H 5) 3 and P (OCH _{3) 3} is.

As the silane coupling agent used in the composition of the present invention, any known silane coupling agent can be used. For example, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, vinyltrimethoxysilane, vinyltrichlorosilane, Vinyltris (β-methoxyethoxy) silane, vinyltriacetoxysilane, γ-methacryloxypropyltrimethoxysilane, N-β- (N-vinylbenzylaminoethyl)
-Γ-aminopropyltrimethoxysilane ・ hydrochloride, γ
-Aminopropyltriethoxysilane, N-phenyl-
γ-aminopropyltrimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ-
(2-aminoethyl) aminopropylmethyldimethoxysilane, γ-mercaptopropyltrimethoxysilane,
γ-mercaptopropylmethyldimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, hexamethyldisilazane, γ-anilinopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane,
There are γ-chloropropylmethyldimethoxysilane, methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, octadecyldimethyl [3- (trimethoxysilyl) propyl] ammonium chloride, and aminosilane compounds. The silane coupling agent is used in an amount of 300 parts by weight or less, preferably 1 to 300 parts by weight, and more preferably 10 to 40 parts by weight based on 100 parts by weight of the metal alkoxide. Addition of an amount of silane coupling agent in excess of 300 parts by weight does not substantially change the physical properties of the obtained polymer, and it is expensive.

Examples of the organic monomer include acrylic acid,
Methacrylic acid, dimethylformamide, acrylonitrile, styrene, methyl acrylate, ethyl acrylate,
There are methyl methacrylate and ethyl methacrylate. However, the present invention is not limited to this, and other vinyl monomers can be used. The amount of such an organic monomer is 300 parts by weight or less, preferably 10 parts by weight, based on 100 parts by weight of the metal alkoxide.
It is used in an amount of up to 300 parts by weight, more preferably 30 to 100 parts by weight.

The sol-gel method catalyst (used for hydrolyzing and polycondensing the above metal alkoxide and silane coupling agent) contains an acid or its anhydride and an organic base. This organic base is a tertiary amine that is substantially insoluble in water and soluble in organic solvents.

The acid used for the catalyst is usually hydrochloric acid,
Mineral acids such as sulfuric acid and nitric acid are used. Anhydrous mineral acids, such as hydrogen chloride gas, have similar effects. Besides, organic acids and their anhydrides can also be used. For example,
Tartaric acid, phthalic acid, maleic acid, dodecylsuccinic acid, hexahydrophthalic acid, methylnadic acid, pyromellitic acid, benzophenonetetracarboxylic acid, dichlorosuccinic acid, chlorendic acid, phthalic anhydride, maleic anhydride, dodecylsuccinic anhydride , Hexahydrophthalic anhydride, methyl nadic acid anhydride, pyromellitic anhydride, benzophenone tetracarboxylic acid anhydride, dichlorosuccinic anhydride, and chlorendic anhydride. These acids are used in an amount of 0.01 mol or more, preferably 0.1 mol, per mol of the metal alkoxide.
It is used in the range of 01 to 0.5 mol. If it is too small, the hydrolysis will not proceed so much.

The tertiary amine used as a catalyst includes N, N-dimethylbenzylamine, tributylamine,
Examples thereof include tri-n-propylamine, tripentylamine, tripropargylamine, N, N, N-trimethylethylenediamine and tri-n-hexylamine.
The tertiary amine is in an equimolar amount or more than the above acid, preferably 0.01 to 0.
Used in a proportion of 06 mol. The amount of the tertiary amine used is appropriately determined within the above range depending on the degree of dissociation. If the amount of the tertiary amine is too small, the polycondensation reaction after hydrolysis of the metal alkoxide and the silane coupling agent becomes extremely slow.

Examples of the solvent used in the present invention include water used for hydrolysis and organic solvents. As the organic solvent, a solvent that can be mixed with water or a solvent that can be partially dissolved in water is used. For example, methanol, ethanol, butanol, propanol, pentanol, hexanol, acetone, methyl ethyl ketone,
There is formamide.

The aromatic composition of the present invention is mainly composed of the following 3
It is prepared by two methods. The first method is a method of preparing a polymer compound using a metal alkoxide and capturing a fragrance in the matrix; the second method is a method of capturing a polymer compound using a metal alkoxide and a silane coupling agent. The third method is to prepare a polymer compound using a metal alkoxide, a silane coupling agent and an organic monomer, and to capture the fragrance in the matrix. Is the way to do it.

According to the first method, for example, first, the metal alkoxide is dissolved in the organic solvent, for example, alcohol. The concentration of the metal alkoxide is not particularly limited, but is usually 500 to 600 g / l. Then water is added. The amount of water is 1 to 1 mol of metal alkoxide.
It is a ratio of 30 mol. Water may be previously mixed with the alcohol. The above fragrance is dissolved or dispersed in this metal alkoxide solution (including water).
The fragrance is used, for example, by dissolving it in an organic solvent or in an aqueous solution. An acid (or its anhydride) of the sol-gel method catalyst is added to this, and the mixture is stirred at room temperature. This reaction is to prevent the volatilization of perfume,
It is performed at room temperature. This reaction substantially completes the hydrolysis. Furthermore, the tertiary amine of the sol-gel method catalyst is added to this reaction solution. When the tertiary amine is added, the polycondensation reaction proceeds in a short time and the gelation is completed. The gelation time depends on the amount of water used and the amount of sol-gel process catalyst. Usually, it is possible to adjust the gelation time and the degree of gelation within a range of 2 seconds to several tens of minutes from the time when the mineral acid is neutralized by the addition of the tertiary amine to reach pH 7.

The gel is formed because an inorganic polymer compound is produced by the hydrolysis / polycondensation of the metal alkoxide. Perfume particles (herein referred to as solid or liquid fine particles containing a perfume molecule and, if necessary, an organic solvent in which the perfume is dissolved) are captured in the matrix of the polymer compound. More specifically, it is considered that the perfume particles are encapsulated and / or included in the following forms. In the above reaction, the hydrolyzed metal alkoxides are polycondensed and crosslinked with each other to form a particulate three-dimensional structure. When this particle-shaped three-dimensional structure is formed, the perfume particles are trapped in the three-dimensional space. That is, the perfume particles are in the form of being encapsulated in the polymer particles. When a plurality of these particles are collected and the polycondensation / cross-linking reaction proceeds, a continuous three-dimensional matrix is formed. The fragrance particles are taken into the internal space and are in the form of encapsulation or inclusion. Such an encapsulated or clathrate fragrance is trapped inside the porous matrix skeleton when the solvent and alcohol (generated by the reaction) are volatilized and removed from the skeleton of the three-dimensional matrix, as described below. It will be in the specified form. Moreover, it is known that the pore size of the small pores of the porous matrix is extremely small. Therefore, the fragrance gradually evaporates, and the fragrance lasts for a long time.

According to the second method, a silane coupling agent is used in addition to the metal alkoxide of the first method. For example, first, a perfume, a silane coupling agent and, if necessary, a photosensitizer are added to a solution containing a metal alkoxide, alcohol and water. Diacetyl or the like is used as the photosensitizer, which accelerates the photopolymerization reaction by ultraviolet irradiation. Further, other monomers and polymers may be added if necessary. Examples of such a monomer include vinyl monomers, and examples of the polymer include polymers or copolymers of vinyl chloride, vinyl acetate, butadiene and the like. These monomers and polymers are added for the purpose of promoting the polymerization reaction and copolymerization reaction described below and forming a homogeneous and reinforced polymer.

In this mixed solution, as in the first method,
A sol-gel method catalyst is added, and ultraviolet rays and / or electron beams are irradiated if necessary. UV wavelength is 250 nm
It is considered as follows. Above 250 nm, the radical polymerization, crosslinking reaction, and polycondensation reaction, which are described later, do not proceed sufficiently. The irradiation dose of the electron beam is in the range of 0.1 to 50 megarads. The amount of energy is preferably 150 to 200 KV. Below 0.1 megarad, radical polymerization, cross-linking reaction and polycondensation reaction, which will be described later, do not proceed sufficiently. It does not require an electron beam in excess of 50 megarads. As the electron beam irradiation device, for example, an area beam type electron beam irradiation device (Curetron, manufactured by Nissin Electric Co., Ltd.) is used.

The metal alkoxide and the silane coupling agent in the above reaction mixture are hydrolyzed, and then the polycondensation reaction proceeds rapidly. Furthermore, if the silane coupling agent has, for example, an epoxy moiety, the above catalyst causes acid cleavage reaction or base cleavage reaction (ring opening reaction) of the epoxy ring. On the other hand, by irradiation with ultraviolet rays and / or electron beams, for example, radicals are generated from vinyl groups, and these radicals initiate the crosslinking reaction or radical polymerization (photopolymerization or electron beam polymerization) of the organic part of the silane coupling agent. . Radicals are generated from photosensitizers in the case of UV irradiation. In addition to electron beams and ultraviolet rays, methods using radiation can also be adopted.

In this way, the hydrolysis reaction of the metal alkoxide and the silane coupling agent (inorganic part)
The polycondensation reaction proceeds rapidly. Radical polymerization (including crosslinking reaction) of the organic portion of the silane coupling agent also proceeds simultaneously with the polycondensation reaction. The above reactions occur both between homologous and heterogeneous molecules. The inorganic part (silica part) of the silane coupling agent is either incorporated into the skeleton of the inorganic polymer or polymerized alone to form the inorganic polymer. The organic portion forms a crosslinked portion while being bonded to the silicon atom.

The polymer compound thus formed is a polymer of an inorganic polymer portion formed by hydrolysis and polycondensation of a metal alkoxide and a silane coupling agent and a functional group (organic portion) of the silane coupling agent. And an organic polymer portion formed by. In other words, the polymer compound in which the metal alkoxide and the silane coupling agent react with each other to bond at the molecular level (this is considered to be a composite polymer compound having an organic part and an inorganic part) is formed. The reaction system in which such a polymer compound is formed is in the form of gel as in the first method. The complex polymer compound forms a three-dimensional matrix almost similar to that obtained by the first method, and the perfume particles present in the reaction system are encapsulated and / or included in the matrix in a similar form. Be converted.

According to the third method, in addition to the metal alkoxide and the silane coupling agent of the above second method,
Furthermore, organic monomers are used. For example, first, a perfume and a silane coupling agent are added to a solution containing a metal alkoxide, alcohol and water. The sol-gel method acid catalyst is added to this to hydrolyze the metal alkoxide. Next, an organic monomer and a photosensitizer such as diacetyl are added when performing photopolymerization by irradiating ultraviolet rays. Further, if necessary, other monomers and polymers are added as in the second method. Sol-
A gel-type base catalyst is added and irradiated with ultraviolet rays and / or electron beams. The reaction caused by this is similar to the case of the second method, but the organic monomer is further polymerized by the radical reaction. This polymerization reaction occurs between the organic monomer molecules and further between the organic portion (epoxy group, vinyl group, etc.) of the silane coupling agent and the organic monomer molecule. In this way, a complex polymer compound that contains more organic moieties than the polymer compound contained in the second composition and is crosslinked in a complicated manner is produced. The perfume particles are encapsulated and / or encapsulated in a composite polymer matrix as in the first and second methods above.
Or included.

By the way, as a sol-gel method catalyst, a mineral acid is generally known. When this catalyst is adopted, in the third method, metal alkoxides or silane cups are used as compared with the polymerization reaction of organic monomers. The hydrolysis and polycondensation reaction of the ring agent is extremely slow. As a result, a homogeneous composite polymer compound is not formed. On the other hand, in the method of the present invention, since the sol-gel method catalyst (acid and tertiary amine) developed by the inventor is used, the polycondensation reaction of the metal alkoxide and the silane coupling agent is extremely rapid. And a homogeneous complex polymer compound is formed.

When radical polymerization using an electron beam and / or an ultraviolet ray is carried out by the above second and third methods, 20 to 30
Since the reaction proceeds even at a low temperature of ℃, the fragrance does not volatilize or disappear. Also in the compositions obtained by these second and third methods, when the solvent and alcohol are removed from the reaction system (including the inside of the matrix skeleton), a porous polymer matrix containing perfume particles is obtained. Therefore, this composition is also excellent in the sustained release effect of the fragrance. Since the polymer compound in the composition obtained by these methods contains an organic component, the film formation rate, mechanical strength,
Excellent workability and adhesion to various substrates. Therefore, for example, by adding it to the paint and applying or impregnating the paint to the surface of a substrate such as wood, synthetic resin, metal, woven cloth, or non-woven cloth, it is more durable and has an excellent sustained release effect. Various products having excellent aromaticity can be obtained.

The reaction system containing the encapsulated and / or clathrated perfume particles obtained by the above first, second and third methods is usually in the form of gel. (If necessary, it is a sol containing fine particles and may be used as it is.) For example, an aromatic ink or paint is obtained by crushing this gel and mixing the printing ink or paint. Alternatively, the gel can be dried to obtain a perfume-containing porous polymer, which can be mixed with paint or the like. Such inks and paints are applied or impregnated into various products such as textile products, building materials, and furniture. It is also possible to mix it with cosmetics. Alternatively, instead of the perfume, an insecticide or a deodorant can be encapsulated and / or included to obtain the effect for a long time. In various products using the composition of the present invention, aromaticity, insecticidal effect, disinfectant effect, etc. are maintained for a long period of time.

The present invention will be described below with reference to examples.

[0031]

【Example】

 (Example 1)

[0032]

[Table 1]

After mixing ethanol, ethyl silicate and a fragrance, water and hydrochloric acid were added, and the mixture was further mixed for several seconds. When N, N-dimethylbenzylamine was added to this and mixed for 50 seconds, gelation occurred. The wet gel was further pulverized by further mixing and uniformly dispersed in a printing ink (containing 255 g of urethane acrylate emulsion and 7.2 g of color pigment).

When the obtained aromatic ink composition was printed on the surface of a cotton woven fabric, a certain aromaticity was maintained for 8 months. Similar results were obtained when printing ink containing acrylate emulsion was used instead of urethane acrylate emulsion.

(Example 2)

[0036]

[Table 2]

Ethanol, ethyl silicate, perfume, silane coupling agent (Toray Silicon SH6040) and water were mixed, and hydrochloric acid and N, N-dimethylbenzylamine were sequentially added thereto in the same manner as in Example 1. The produced gel was crushed and uniformly mixed with an ethanol solution containing nylon 6/11 at a ratio of 90%. This mixed solution was applied to the surface of a vinyl chloride base material so that the thickness after drying would be 20 μm. The scent was maintained for 2 months.

(Example 3)

[0039]

[Table 3]

Isopropyl alcohol was used in place of ethanol, and the reaction was carried out according to Example 2. The resulting gel was ground and mixed with acetone. Cloth (100% cotton broad) was dipped in this mixture and pulled up to dry. The amount of solids deposited on the fabric was 13.8 g / m ² . The aromatic fabric retained its scent for 6 months.

(Example 4)

[0042]

[Table 4]

Isopropyl alcohol, ethyl silicate, perfume, silane coupling agent, acrylonitrile monomer and water were mixed, and hydrochloric acid and N, N-dimethylbenzylamine were sequentially added thereto in the same manner as in Example 1. The resulting gel was crushed and diluted with acetone.
The thickness of this mixed solution after drying on the glass substrate surface is 10 μm
Was applied so that The scent was maintained for 2 months.

(Example 5)

[0045]

[Table 5]

Ethyl silicate, ethanol, deodorant and water were mixed, and hydrochloric acid and N, N-dimethylbenzylamine were sequentially added thereto in the same manner as in Example 1. The gel formed was ground. When this was applied to the inside of a plastic kitchen dustbin, a deodorizing effect was obtained for 2 months.

[0047]

As described above, according to the present invention, there is provided an aromatic composition excellent in sustained release of a perfume ingredient and capable of maintaining aromaticity for a long period of time, and a method for producing the same. This composition is mixed with a printing ink, a paint, a wrap material for clothing, etc., and is used to produce, for example, aromatic furniture, clothing, cosmetics, building materials, magnetic cards such as telephone cards,
Can be created. It is also possible to prepare the composition of the present invention by using a deodorant or anthelmintic agent instead of the fragrance, and in that case, a sustained release composition having a deodorant effect and an insecticidal effect for a long period of time. The thing is obtained.

Claims (17)

[Claims] 1. An aromatic composition in which perfume particles are encapsulated and / or included in an inorganic polymer compound matrix formed from a metal alkoxide. 2. An aromatic composition in which perfume particles are encapsulated and / or clathrated in a composite polymer compound matrix formed from a metal alkoxide and a silane coupling agent. 3. An aromatic composition in which perfume particles are encapsulated and / or included in a composite polymer compound matrix formed from a metal alkoxide, an organic monomer and a silane coupling agent. 4. The metal alkoxide is Si (OC ₂ H ₅ ) ₄ ,
Al (O-iso-C ₃ H ₇ ) ₃ , Ti (O-iso-C ₃ H ₇ ) ₄ , Zr (OtC ₄ H ₉ ) ₄ , Zr
(OnC ₄ H ₉ ) ₄ , Ca (OC ₂ H ₅ ) ₂ , Fe (OC ₂ H ₅ ) ₃ , V (O-iso- C
₃ H ₇ ) ₄ , Sn (OtC ₄ H ₉ ) ₄ , Li (OC ₂ H ₅ ), Be (OC ₂ H ₅ ) ₃ , V (Oi
_{so-C 3 H 7) 4} , P (OC 2 H 5) 3 and P (OCH ₃₎ is at least one selected from the group consisting of _3, aromatic composition according to any one of claims 1 to 3 object. 5. The fragrance composition according to claim 1, wherein the fragrance is mainly composed of at least one of animal natural fragrance, plant natural fragrance and synthetic fragrance. 6. The method for producing the aromatic composition according to claim 1, wherein a sol-gel method acid catalyst is added to a solution or dispersion containing a metal alkoxide, a fragrance and water, and the metal alkoxide is hydrolyzed. The step of decomposing and adding a sol-gel method base catalyst to the obtained reaction mixture to polycondensate the hydrolyzate to form an inorganic polymer compound, and to form the perfume particles in the matrix of the inorganic polymer compound. A method for producing an aromatic composition, which comprises a step of encapsulating and / or encapsulating. 7. A method for producing the aromatic composition according to claim 2, wherein a sol-containing solution or dispersion containing a metal alkoxide, a silane coupling agent, a perfume and water.
A step of adding a gel method acid catalyst to hydrolyze the metal alkoxide and the silane coupling agent, and adding a sol-gel method base catalyst to the obtained reaction mixture to polycondense the hydrolyzate to give a composite polymer. A method for producing an aromatic composition, which comprises the steps of forming a compound and encapsulating and / or encapsulating the perfume particles in a matrix of the composite polymer compound. 8. The method according to claim 7, further comprising the step of adding the sol-gel method base catalyst to a reaction mixture of a metal alkoxide and the silane coupling agent and irradiating at least one of ultraviolet rays and electron beams. The method described. 9. A method for producing the aromatic composition according to claim 3, wherein a sol-containing solution or dispersion containing a metal alkoxide, a silane coupling agent, a perfume and water is used.
A step of adding a gel method acid catalyst to hydrolyze the metal alkoxide and the silane coupling agent, a step of adding an organic monomer to the obtained reaction mixture, and a sol-gel method base catalyst to the reaction mixture containing the organic monomer. In addition,
And irradiating at least one of ultraviolet rays and electron beams,
Polycondensation of the hydrolyzate and polymerization of the silane coupling agent hydrolyzate and the organic monomer form a composite polymer compound, and the perfume particles are encapsulated and / or encapsulated in the matrix of the composite polymer compound. A method for producing an aromatic composition, which comprises a step of contacting. 10. The metal alkoxide is Si (OC).
₂ H ₅ ) ₄ ,, Al (O-iso-C ₃ H ₇ ) ₃ , Ti (O-iso-C ₃ H ₇ ) ₄ , Zr (OtC ₄
H ₉ ) ₄ , Zr (OnC ₄ H ₉ ) ₄ , Ca (OC ₂ H ₅ ) ₂ , Fe (OC ₂ H ₅ ) ₃ , V (O-is
_{o- C 3 H 7) 4,} Sn (OtC 4 H 9) 4, Li (OC 2 H 5), Be (OC 2 H 5) 3, V
The method according to claim 6, 7 or 9, which is at least one selected from the group consisting of (O-iso-C ₃ H ₇ ) ₄ , P (OC ₂ H ₅ ) ₃ and P (OCH ₃ ) _3. . 11. The method according to claim 6, 7 or 9, wherein the fragrance is mainly composed of at least one of animal natural fragrance, plant natural fragrance and synthetic fragrance. 12. The sol-gel method base catalyst is an organic base, and the organic base is a tertiary amine that is substantially insoluble in water and soluble in an organic solvent. 9. The method according to any of 9. 13. The tertiary amine is N, N-dimethylbenzylamine, tributylamine, tri-n-propylamine, tripentylamine, tripropargylamine, N, N, N-trimethylethylenediamine, tri-n.
13. The method according to claim 12, which is at least one selected from the group consisting of hexylamine. 14. With respect to 1 mol of the metal alkoxide,
The sol-gel method acid catalyst and the base catalyst each contained 0.
Addition in a proportion of at least 01 mol, Claim 6, 7 or 9
The method described in. 15. The method according to claim 7, wherein the silane coupling agent is added in a ratio of 1 to 300 parts by weight based on 100 parts by weight of the metal alkoxide. 16. The method according to claim 9, wherein the organic monomer is added in a ratio of 10 to 300 parts by weight based on 100 parts by weight of the metal alkoxide. 17. A mole of the metal alkoxide,
7. The method according to claim 6, wherein the water for hydrolysis is added in a proportion of 1 to 30 mol.