JP2588236B2 - Aromatic composition - Google Patents

Description

The present invention relates to an aromatic composition and a method for producing the same, particularly
The present invention relates to a fragrance composition containing encapsulated and / or clathrated fragrance molecules and having a long-lasting fragrance, and a method for producing the same.

(Prior Art) In recent years, attempts have been made to mix fragrances (aromatic substances) with paints and printing inks to impart fragrance to the paints and printing inks after application and drying. Usually, paints, printing inks, and the like 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, when a fragrance is added to these paints and printing inks to prepare a scented paint (or ink), and then applied, heated or left naturally in the air, the solvent evaporates,
The resin component containing the fragrance is fixed. However, if a fragrance is simply mixed with paint or printing ink, a temporary fragrance can be obtained, but the fragrance evaporates together with the solvent.
Aroma is not maintained for a long time. In particular, if the coating surface or the printing surface is heated, the fragrance is easily lost.

On the other hand, attempts have been made to microencapsulate fragrances. For example, by coating the perfume molecules with a film of gelatin, polyvinyl alcohol (PVA), etc. by the coacervation method, the particle size is 10 to 100 μm.
Is obtained. Such microencapsulated fragrances have already been commercialized. However, the flavor in this microcapsule is
Because it is sealed with PVA membrane, it does not emit fragrance as it is manufactured. When the capsule film 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. That is, after the microcapsules are broken, long-term fragrance is not maintained.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and has the following objects: (1) printing ink, paint,
Mixed with printing materials for clothing, etc.
(2) To provide an aromatic composition having a sustained release property, for example, capable of producing aromatic furniture, clothing, cosmetics, building materials, and magnetic cards such as telephone cards; (2) inorganic or composite polymers (3) providing a fragrance composition in which a fragrance component is encapsulated and / or included in a compound matrix, wherein the fragrance molecule can be gradually released over a long period of time; To provide a method for producing an excellent fragrance composition and a sustained-release composition.

(Means and Actions for Solving the Problems) The present inventors believe that if a perfume molecule can be encapsulated or included in a porous polymer matrix, an aromatic composition having excellent sustained release properties can be obtained. The preparation of an aromatic composition using such a polymer was studied, and the present invention was completed.

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

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

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

The present invention relates to a method for producing an aromatic composition in which perfume particles are encapsulated and / or included in an inorganic polymer compound matrix. The method comprises the steps of: preparing a solution or dispersion containing a metal alkoxide, a perfume and water; Adding a gel method acid catalyst to hydrolyze the metal alkoxide; and adding a sol-gel method base catalyst to the obtained reaction mixture,
A step of polycondensing the hydrolyzate to form an inorganic polymer compound, and encapsulating and / or encapsulating the fragrance particles in a matrix of the inorganic polymer compound.

The present invention relates to a method for producing an aromatic composition in which perfume particles are encapsulated and / or included in a composite polymer compound matrix, comprising a solution containing a metal alkoxide, a silane coupling agent, a perfume and water. Or adding a sol-gel acid catalyst to the dispersion to hydrolyze the metal alkoxide and the silane coupling agent;
And adding a sol-gel base catalyst to the obtained reaction mixture, polycondensing the hydrolyzate to form a composite polymer compound, encapsulating the perfume particles in a matrix of the composite polymer compound, and And / or inclusion.

The present invention relates to a method for producing an aromatic composition in which perfume particles are encapsulated and / or included in a composite polymer compound matrix, comprising a solution containing a metal alkoxide, a silane coupling agent, a perfume and water. Or adding a sol-gel acid catalyst to the dispersion to hydrolyze the metal alkoxide and the silane coupling agent; adding an organic monomer to the obtained reaction mixture; and adding the organic monomer to the reaction mixture containing the organic monomer. A composite high molecular compound is obtained by adding a sol-gel base catalyst and irradiating at least one of ultraviolet rays and electron beams to the polycondensation of the hydrolyzate and the polymerization of the silane coupling agent hydrolyzate and the organic monomer. Forming and encapsulating and / or encapsulating the perfume particles in a matrix of the composite polymer compound. That.

The flavor used in the composition of the present invention may be any of animal natural flavors, vegetable natural flavors and synthetic flavors. These are used in an amount of 1 to 300 parts by weight, preferably 50 to 200 parts by weight, based on 100 parts by weight of a metal alkoxide described later. When the amount is less than 1 part by weight, a fragrance composition having a desired fragrance cannot be obtained. It is difficult to microencapsulate perfumes in amounts exceeding 300 parts by weight.

The metal alkoxide used in the composition of the present invention is obtained by adding a known alcohol such as methanol, ethanol or isopropanol to a metal oxide such as alumina, silica, titanium (IV) oxide or zirconium (IV) oxide. Can be Such metal alkoxides include, for example, Si (OC ₂ H ₅ ) ₄ , Al (O-iso-C ₃ H ₇ ) ₃ , Ti (O-iso
−C ₃ H ₇ ) ₄ , Zr (Ot−C ₄ H ₉ ) ₄ , Zr (On−C 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−
is _{iso-C 3 H 7) 4} , P (OC 2 H 5) 3 and P (OCH _{3) 3.}

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,
.gamma.-chloropropyltrimethoxysilane, .gamma.-chloropropylmethyldimethoxysilane, methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, octadecyldimethyl [3- (trimethoxysilyl) propyl] ammonium chloride, aminosilane compound. The silane coupling agent is used in an amount of 300 parts by weight or less, preferably 1 part by weight, per 100 parts by weight of the metal alkoxide.
It is used in an amount of from 300 to 300 parts by weight, more preferably from 10 to 40 parts by weight. Even if the amount of the silane coupling agent exceeds 300 parts by weight, the physical properties of the obtained polymer are hardly changed and the polymer becomes expensive.

Organic monomers include, for example, acrylic acid, methacrylic acid, dimethylformamide, acrylonitrile, styrene, methyl acrylate, ethyl acrylate, methyl methacrylate, and ethyl methacrylate. However, the present invention is not limited to this, and other vinyl monomers can be used.
Such an organic monomer is the metal alkoxide 100
It is used in an amount of 300 parts by weight or less, preferably 10 to 300 parts by weight, more preferably 300 to 100 parts by weight based on parts by weight.

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

As the acid used for the catalyst, mineral acids such as hydrochloric acid, sulfuric acid, nitric acid and the like are usually used. Anhydrous mineral acids, such as hydrogen chloride gas, have similar effects. In addition, 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 , Dodecyl succinic anhydride, hexahydrophthalic anhydride, methyl nadic anhydride, pyromellitic anhydride, benzophenone tetracarboxylic anhydride, dichlorosuccinic anhydride, and chlorendic anhydride. These acids are used in an amount of 0.01 mol or more, preferably 0.01 to 0.5 mol, per 1 mol of the metal alkoxide. If the amount is too small, the hydrolysis hardly proceeds.

As the tertiary amine used as a catalyst, N, N-dimethylbenzylamine, tributylamine, tri-n-propylamine, tripentylamine, trippropargylamine, N, N, N-trimethylethylenediamine, tri-n
-Hexylamine and the like. The tertiary amine is used in an equimolar amount or more than the above acid, preferably in a ratio of 0.01 to 0.06 mol per 1 mol of the metal alkoxide. The amount of the tertiary amine used is appropriately determined within the above range according to 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 an organic solvent in addition to water used for hydrolysis. As the organic solvent, a solvent miscible with water or a solvent partially soluble in water is used. Examples include methanol, ethanol, butanol, propanol, pentanol, hexanol, acetone, methyl ethyl ketone, and formamide.

The fragrance composition of the present invention is prepared mainly by the following three methods. The first method is to prepare a polymer compound using a metal alkoxide and trap the fragrance in its matrix; the second method is to prepare the polymer compound using a metal alkoxide and a silane coupling agent. Preparing and trapping the fragrance in the matrix; and a third method is to prepare a polymer compound using a metal alkoxide, a silane coupling agent and an organic monomer, and to trap the fragrance in the matrix. How to

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 /. Then water is added. The amount of water is from 1 to 30 moles per mole of metal alkoxide. Water may be previously mixed with the alcohol. This metal alkoxide solution (including water)
Then, the above fragrance is dissolved or dispersed. The fragrance is used, for example, after being dissolved in an organic solvent or the like, or as an aqueous solution. An acid (or an anhydride thereof) of the above sol-gel method catalyst is added thereto, and the mixture is stirred at room temperature.
This reaction is performed at normal temperature to prevent volatilization of the fragrance. This reaction substantially completes the hydrolysis. Further, a tertiary amine of the sol-gel method catalyst is added to the reaction solution. When the tertiary amine is added, the polycondensation reaction proceeds within a short time to complete gelation. The gel time depends on the amount of water used and the amount of sol-gel catalyst. Normally, mineral acids are neutralized by the addition of tertiary amines and pH
The gelation time and the degree of gelation can be adjusted within a range of 2 seconds to several tens of minutes from the point when the number reaches 7.

The gel is formed because an inorganic polymer compound is generated by hydrolysis and polycondensation of the metal alkoxide. In the matrix of the polymer compound, perfume particles (here, solid or liquid fine particles containing perfume molecules and, if necessary, an organic solvent in which the perfume is dissolved) are captured. More specifically,
It is believed that the perfume particles are encapsulated and / or included in the following manner. In the above reaction, the hydrolyzed metal alkoxides are polycondensed and crosslinked,
A particulate three-dimensional structure is formed. When the particulate three-dimensional structure is formed, the fragrance particles are trapped in the three-dimensional space. That is, the fragrance particles are in a form encapsulated in the polymer particles. These particles gather together,
As the polycondensation / crosslinking reaction further proceeds, a continuous three-dimensional matrix is formed. The fragrance particles are taken into its internal space and become encapsulated or included. Such encapsulated or clathrated fragrances are, as described below, solvents and alcohols (produced by the reaction).
Is volatilized and removed from the skeleton of the three-dimensional matrix, the fragrance is trapped inside the porous matrix skeleton. Moreover, it is known that the pore size of the pores of the porous matrix is extremely small. Therefore, it has the effect that the fragrance evaporates gradually and the scent 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 fragrance, a silane coupling agent and, if necessary, a photosensitizer are added to a solution containing a metal alkoxide, an alcohol and water. As a photosensitizer, diacetyl or the like is used, which promotes a photopolymerization reaction by ultraviolet irradiation. Further, other monomers and polymers may be added as needed. Such monomers include:
Examples include vinyl monomers, and examples of the polymer include polymers or copolymers obtained by polymerizing vinyl chloride, vinyl acetate, butadiene, and the like. These monomers and polymers are added for the purpose of accelerating the polymerization reaction and copolymerization reaction described below and forming a homogeneous and reinforced polymer.

The sol-gel method catalyst is added to this mixed solution as in the first method, and the mixture is irradiated with ultraviolet rays and / or electron beams as necessary. The wavelength of the ultraviolet light is 250 nm or less. If it exceeds 250 nm, the later-described radical polymerization, crosslinking reaction, and polycondensation reaction will not sufficiently proceed. The irradiation dose of the electron beam is in the range of 0.1 to 50 Mrad. The energy amount is preferably 150 to 200 KV. If it is less than 0.1 megarad, it is difficult for the radical polymerization, crosslinking reaction and polycondensation reaction described later to sufficiently proceed. It does not require more than 50 megarads of electron beam. 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 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-mentioned catalyst causes an acid-cleavage reaction or a base-cleavage reaction (ring-opening reaction) of the epoxy ring.
On the other hand, a radical is generated from, for example, a vinyl group by irradiation of ultraviolet rays and / or an electron beam.
Initiate a crosslinking reaction or radical polymerization (photopolymerization or electron beam polymerization) of the organic portion of the silane coupling agent. Radicals are generated from a photosensitizer in the case of ultraviolet irradiation. In addition to electron beams and ultraviolet rays, a method using radiation may be adopted.

Thus, the hydrolysis reaction / polycondensation reaction of the metal alkoxide and the silane coupling agent (inorganic portion) rapidly proceeds. Radical polymerization (including cross-linking reaction) of the organic portion of the silane coupling agent also proceeds simultaneously with the polycondensation reaction. The above reaction takes place both between the same molecules and between the different molecules. The inorganic portion (silica portion) of the silane coupling agent is 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 formed by polymerization 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. Organic polymer portion. In other words,
The metal alkoxide reacts with the silane coupling agent to form a polymer compound bonded at a molecular level (this is considered to be a composite polymer compound having an organic portion and an inorganic portion). The reaction system in which such a high molecular compound is formed exhibits a gel state as in the first method. The composite polymer compound forms a three-dimensional matrix substantially similar to that obtained by the first method, and the fragrance particles present in the reaction system are encapsulated and / or included in the matrix in a similar form. Be transformed into

According to the third method, an organic monomer is further used in addition to the metal alkoxide and the silane coupling agent of the second method. For example, first, a fragrance and a silane coupling agent are added to a solution containing a metal alkoxide, an alcohol, and water. A metal alkoxide is hydrolyzed by adding an acid catalyst to a sol-gel method. Next, when photopolymerization is performed by irradiating an organic monomer and ultraviolet rays, a photosensitizer such as diacetyl is added. Further, as required, other monomers and polymers are added as in the second method. To this, a sol-gel base catalyst is added and irradiated with ultraviolet rays and / or electron beams. The reaction caused by this is similar to that of the second method, but the organic monomer is further polymerized by a 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 containing more organic portions than the polymer compound contained in the second composition and complexly crosslinked is generated. The fragrance particles are encapsulated and / or included in the composite polymer matrix as in the first and second methods.

By the way, a mineral acid is generally known as a sol-gel method catalyst. However, when this catalyst is employed, in the third method, the metal alkoxide or silane coupling agent is compared with a polymerization reaction of an organic monomer. The hydrolysis / polycondensation reaction 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 above-mentioned 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 composite polymer compound is formed.

When radical polymerization using electron beams and / or ultraviolet rays is performed by the second and third methods, the reaction proceeds even at a low temperature of 20 to 30 ° C., so that the fragrance does not volatilize or disappear. Also in the compositions obtained by the second and third methods, when the solvent and the 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, it is excellent in film formation speed, mechanical strength, workability, and adhesion to various substrates. Therefore, by adding or impregnating the paint on the surface of a base material such as wood, synthetic resin, metal, woven fabric, or non-woven fabric, for example, by adding the paint to the paint, it is more durable and has an excellent sustained release effect. A variety of products having a fragrance can be obtained.

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

(Examples) Hereinafter, the present invention will be described with reference to examples.

After mixing ethanol, ethyl silicate and perfume, water and hydrochloric acid were added, and the mixture was further mixed for several seconds. N, N-dimethylbenzylamine was added to this and mixed for 50 seconds, and gelation occurred. Further mixing was continued, the wet gel was pulverized, and the printing ink (255 g of urethane acrylate emulsion and coloring pigment 7.
(Containing 2 g).

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

Ethanol, ethyl silicate, fragrance, 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 resulting gel was ground and uniformly mixed with an ethanol solution containing 90% nylon 6/11. This mixture was applied to the surface of a vinyl chloride base material so that the thickness after drying was 20 μm. The scent was maintained for two months.

The reaction was carried out according to Example 2 using isopropyl alcohol instead of ethanol. The resulting gel was crushed and mixed with acetone. Add this mixture to fabric (100% cotton)
(Broad) was immersed, pulled up and dried. The amount of solids attached to the fabric was 13.8 g / m ² . The aromatic fabric maintained its scent for six months.

Isopropyl alcohol, ethyl silicate, fragrance,
A silane coupling agent, an 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. This mixed solution was applied to the surface of a glass substrate so that the thickness after drying was 10 μm. The scent was maintained for two months.

Ethyl silicate, ethanol, a 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 resulting gel was crushed. When this was applied to the inside of a plastic kitchen garbage bin, the deodorizing effect was obtained for two months.

(Effects of the Invention) According to the present invention, there is provided a fragrance composition which is excellent in sustained release of a fragrance component and can maintain fragrance over a long period of time, and a method for producing the same. Mixing this composition with printing inks, paints, pudding materials for clothing, etc., and using it to make aromatic furniture, clothing, cosmetics, building materials, magnetic cards such as telephone cards, etc. Is possible. It is also possible to prepare the composition of the present invention by using a deodorant or an anthelmintic instead of a fragrance, in which case the composition has a deodorant effect and an insecticidal effect over a long period of time.
A sustained release composition is obtained.

Continuation of the front page (56) References JP-A-51-123814 (JP, A) JP-A-53-107418 (JP, A) JP-A-59-104314 (JP, A) "Sol-gel method" 17-25, July 5, 1988, published by Agne Jofu Co., Ltd.

Claims (20)

(57) [Claims] An aromatic composition comprising an inorganic polymer compound in which a fragrance is encapsulated and / or included in a polymer matrix, wherein the inorganic polymer compound contains a metal alkoxide and a fragrance. The metal alkoxide is hydrolyzed by adding a sol-gel acid catalyst, which is at least one of a mineral acid, an organic acid, and an anhydride thereof, to the solution, and the resulting reaction mixture is mixed with an organic base, sol-gel. An aromatic composition formed by the polycondensation of a gel base catalyst. 2. An aromatic composition comprising a composite polymer compound in which a fragrance is encapsulated and / or included in a polymer matrix, wherein the composite polymer compound is a metal alkoxide, a silane coupling agent. A sol-gel acid catalyst, which is at least one of a mineral acid, an organic acid, and an anhydride thereof, is added to a water-containing liquid containing a fragrance and a perfume to hydrolyze the metal alkoxide and the silane coupling agent. An aromatic composition formed by adding a sol-gel base catalyst, which is an organic base, to a reaction mixture and subjecting it to polycondensation. 3. An aromatic composition comprising a composite polymer compound in which a fragrance is encapsulated and / or included in a polymer matrix, wherein the composite polymer compound is a metal alkoxide, an organic monomer, or a silane. For aqueous solutions containing coupling agents and fragrances,
The metal alkoxide and the silane coupling agent are hydrolyzed by adding a sol-gel acid catalyst, which is at least one of a mineral acid, an organic acid and an anhydride thereof, and an organic base is added to the resulting reaction mixture. An aromatic composition formed by polycondensation with the addition of a sol-gel base catalyst. 4. The method according to claim 1, wherein 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 (O-t
_{-C 4 H 9) 4, Zr} (O-n-C 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 (O-t-C 4 H 9) 4, Li
(OC ₂ H ₅ ), Be (OC ₂ H ₅ ) ₃ , P (OC ₂ H ₅ ) ₃ and P (OC
H ₃₎ aromatic composition according to any one of a range of at least one a is claimed is selected from the group consisting of ₃ Section 1 Section 3. 5. The fragrance according to any one of claims 1 to 3, wherein the fragrance contains at least one of animal natural fragrance, vegetable natural fragrance, and synthetic fragrance as a main component. Composition. 6. A method for producing an aromatic composition according to claim 1, wherein the aqueous solution containing a metal alkoxide and a fragrance contains at least one of a mineral acid, an organic acid and an anhydride thereof. A step of adding a kind of sol-gel method acid catalyst to hydrolyze the metal alkoxide; and adding an organic base of a sol-gel method base catalyst to the obtained reaction mixture to polycondensate the hydrolyzate. A method for producing an aromatic composition, comprising a step of forming an inorganic polymer compound and encapsulating and / or encapsulating the fragrance in a matrix of the inorganic polymer compound. 7. A method for producing an aromatic composition according to claim 2, wherein the aqueous solution containing a metal alkoxide, a silane coupling agent and a fragrance is added to a mineral acid, an organic acid and an anhydride thereof. Adding a sol-gel acid catalyst, which is at least one of the following, to hydrolyze the metal alkoxide and the silane coupling agent; and adding an organic base, a sol-gel base catalyst, to the obtained reaction mixture. In addition, the method comprises the step of polycondensing the hydrolyzate to form a composite polymer compound, and encapsulating and / or encapsulating the fragrance in a matrix of the composite polymer compound. Production method. 8. The method according to claim 7, further comprising a step of adding the organic base to a reaction mixture of the metal alkoxide and the silane coupling agent and irradiating at least one of ultraviolet rays and an electron beam. The method described in the section. 9. The method according to claim 7, further comprising the step of adding a photosensitizer and said organic base to a reaction mixture of said metal alkoxide and said silane coupling agent, and irradiating with ultraviolet light. the method of. 10. A method for producing an aromatic composition according to claim 3, wherein the aqueous solution containing a metal alkoxide, a silane coupling agent and a fragrance is mixed with a mineral acid, an organic acid and an anhydride thereof. Adding a sol-gel method acid catalyst, which is at least one of the following, to hydrolyze the metal alkoxide and the silane coupling agent, adding an organic monomer to the obtained reaction mixture, and including the organic monomer A sol-gel base catalyst, which is an organic base, is added to the reaction mixture, and the hydrolyzate is polycondensed to form a composite polymer compound. The fragrance is encapsulated and / or encapsulated in a matrix of the composite polymer compound. A method for producing an aromatic composition, comprising a step of inclusion. 11. The method according to claim 10, further comprising a step of adding said organic base to said reaction mixture containing said organic monomer and irradiating at least one of ultraviolet rays and an electron beam.
The method described in the section. 12. The method according to claim 10, further comprising the step of adding a photosensitizer and said organic base to said reaction mixture containing said organic monomer and irradiating with ultraviolet light. 13. The method according to claim 13, wherein 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 (O-
_{t-C 4 H 9) 4} , Zr (O-n-C 4 H 9) 4, Ca (OC 2 H 5) 2, Fe (O
_{C 2 H 5) 3, V} (O-iso-C 3 H 7) 4, Sn (O-t-C 4 H 9) 4, Li
(OC ₂ H ₅ ), Be (OC ₂ H ₅ ) ₃ , P (OC ₂ H ₅ ) ₃ and P (OC
H ₃₎ at least the range of a kind which is claimed paragraph 6 is selected from the group consisting of _3, paragraph 7 or method according to paragraph 10. 14. The method according to claim 6, wherein said fragrance mainly comprises at least one of animal natural fragrance, vegetable natural fragrance and synthetic fragrance. . 15. The method according to claim 6, wherein the organic base is a tertiary amine substantially insoluble in water and soluble in an organic solvent. the method of. 16. The tertiary amine is N, N-dimethylbenzylamine, tributylamine, tri-n-propylamine, tripentylamine, trippropargylamine, N,
16. The method according to claim 15, wherein the method is at least one selected from the group consisting of N, N-trimethylethylenediamine and tri-n-hexylamine. 17. The sol-gel method acid catalyst and the base catalyst are used in an amount of 0.01 mol per mol of the metal alkoxide.
Claim 6, added in a proportion of at least moles
Item 7. The method according to Item 7 or 10. 18. 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. 19. The method according to claim 10, 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. 20. The method according to claim 6, wherein water for hydrolysis is added in a ratio of 1 to 30 mol per 1 mol of the metal alkoxide. .