JP2010035730A - Water gel deodorant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stationary deodorant having excellent deodorizing performance by efficiently adsorbing odor components in a space and absorbing a larger amount of odor than a solid-particle deodorant. <P>SOLUTION: A water gel deodorant is obtained by making a (b) absorptive resin absorb a liquid mixture containing a predetermined amount of a compound expressed by general formulae (1) to (3) or one or more kinds of specific amino compounds (a) selected from the salts thereof. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an aqueous gel deodorant.

  Conventional deodorants and fragrances for reducing and eliminating bad odors in rooms, toilets, refrigerators, shoe boxes, and other spaces in the car are: (1) fragrances and odor control agents, natural substances such as polysaccharides Encapsulated in a gel or resin in combination with a synthetic polymer such as a molecular compound or polyacrylic acid to suppress volatilization of perfume and enhance sensory deodorization ability (see Patent Documents 1 and 2), and ( 2) Two types of materials that use physical adsorption for solid particles such as activated carbon and zeolite (see Patent Documents 3 and 4) are common.

JP-A-2005-87286 JP 2005-523078 gazette JP 2003-47648 A JP 2003-52799 A

  In the conventional type as described above, in the case of (1), the malodorous component drifting in the space cannot be substantially reduced, and in the case of (2), when a certain amount of malodorous component is adsorbed and saturated to the deodorant, Since the effect is remarkably lowered, there is a limit that the deodorizing performance greatly depends on the surface area of the deodorant.

  On the other hand, a deodorant in the form of an aqueous solution is suitable for deodorizing using a means such as spraying malodorous components adhering to the fabric, but effectively deodorizing malodorous components floating in the space. There were limits. Moreover, when it puts into a container and uses it as a stand type | mold, there exists a possibility that it may spill from a container and there exists a fault that it is difficult to handle.

  An object of the present invention is to provide a stationary deodorant capable of efficiently adsorbing malodorous components in the space, having a higher malodor absorption amount than a solid particulate deodorant, and having excellent deodorizing performance. It is to provide a water-based gel deodorant suitable as

  In the present invention, (a) one or more amino compounds selected from compounds represented by the following general formulas (1) to (3) or salts thereof [hereinafter referred to as component (a)] 0.001 to 5 mass % Of water and a water-containing gel deodorant obtained by absorbing (b) a water-absorbent resin (hereinafter referred to as component (b)) a liquid mixture containing water and water (hereinafter also referred to as a liquid mixture according to the present invention). It relates to the agent.

(In the formula, R ¹ represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms, and R ² represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or 1 to 1 carbon atoms. And R ³ represents an alkylene group having 1 to 5 carbon atoms, and R ⁴ represents an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms.)

(In the formula, R ⁵ and R ⁶ represent a hydrogen atom, an alkyl group having 2 to 22 carbon atoms which may have an ether bond or a hydroxyalkyl group, and may be the same or different. R ⁷ is a hydrogen atom. Or a methyl group, R ⁸ represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and m represents an integer of 0 to 2.)

(In the formula, R ⁹ and R ¹⁰ represent a hydrogen atom, an alkyl group having 2 to 22 carbon atoms which may have an ether bond or a hydroxyalkyl group, and may be the same or different. R ¹¹ is a hydrogen atom. Or an alkyl group having 1 to 6 carbon atoms.)

  The present invention also relates to a stationary deodorant comprising the aqueous gel deodorant of the present invention.

  The deodorizer of the aqueous gel of the present invention can efficiently adsorb malodorous components in spaces such as rooms, toilets, refrigerators, clogs, and cars, and has excellent deodorizing performance. With the aqueous gel deodorant of the present invention, a stationary deodorant excellent in deodorizing performance can be provided.

[(A) component]
The amino compound (a) is at least one selected from the compounds represented by the above general formulas (1) to (3) or salts thereof.

In General Formula (1), R ¹ represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a hydroxyalkyl group having 1 to 5 carbon atoms, and the alkyl group and the hydroxyalkyl group are linear or branched. Either may be sufficient. Examples of the alkyl group having 1 to 5 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, t-butyl group, n-pentyl group, and isopentyl group. . Examples of the hydroxyalkyl group having 1 to 5 carbon atoms include hydroxymethyl group, 2-hydroxyethyl group, 2-hydroxypropyl group, 3-hydroxypropyl group, 2-hydroxybutyl group, 3-hydroxybutyl group, 4- Examples thereof include a hydroxybutyl group.

R ¹ is preferably a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group, or a 2-hydroxyethyl group, and particularly preferably a hydrogen atom, a hydroxymethyl group, or a 2-hydroxyethyl group, from the viewpoint of deodorizing performance and availability. .

R ² represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms, or a hydroxyalkyl group having 1 to 5 carbon atoms. The alkyl group and the hydroxyalkyl group are linear or branched. Either a chain or a ring may be used. Examples of the alkyl group having 1 to 12 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, t-butyl group, n-pentyl group, isopentyl group, and n-hexyl group. , Isohexyl group, n-decyl group, isodecyl group, cyclopentyl group, cyclohexyl group and the like. The hydroxyalkyl group of 1 to 5 carbon atoms, include those exemplified above R ^1.

R ² is preferably a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a hydroxyethyl group from the viewpoint of deodorizing performance and availability, and particularly preferably a hydrogen atom.

R ³ represents an alkylene group having 1 to 5 carbon atoms. The alkylene group having 1 to 5 carbon atoms is preferably a methylene group, an ethylene group, a propylene group or a butylene group, and particularly preferably a methylene group. R ⁴ represents an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms. Examples of the alkyl group having 1 to 5 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, t-butyl group, n-pentyl group, and isopentyl group. A methyl group is preferred. The hydroxyalkyl group having 1 to 5 carbon atoms is preferably a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group or a hydroxybutyl group, and particularly preferably a hydroxymethyl group.

  Specific examples of the amino compound represented by the general formula (1) or a salt thereof include, for example, tris (hydroxymethyl) aminomethane, 2-amino-2-methyl-1-propanol, 2-amino-1,3- Propanediol, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, 2 -Amino-2-hydroxyethyl-1,3-propanediol, 4-amino-4-hydroxypropyl-1,7-heptanediol, 2- (N-ethyl) amino-1,3-propanediol, 2- ( N-ethyl) amino-2-hydroxymethyl-1,3-propanediol, 2- (N-decyl) amino-1,3-propanediol, 2- (N-decyl) Amino-2-hydroxymethyl-1,3-propanediol, and mixtures thereof with hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, and salts with acids of carbonate.

  Among these, from the viewpoint of deodorizing performance and the like, tris (hydroxymethyl) aminomethane, 2-amino-2-methyl-1-propanol, 2-amino-1,3-propanediol, 2-amino-2- Methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-hydroxyethyl-1 , 3-propanediol and at least one selected from salts thereof with an acid such as hydrochloric acid are particularly preferred.

  When the amino compound represented by the general formula (1) is used as a salt such as hydrochloric acid, the pH can be adjusted by adding a base. Examples of the base that can be used include sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide and the like, as well as monoethanolamine, diethanolamine, triethanolamine, methylethanolamine, dimethylethanolamine and the like. Among these, sodium hydroxide and potassium hydroxide are preferable.

  The amino compound represented by the general formula (1) can be produced by a conventional method.

In the general formula (2), R ⁵ and R ⁶ represent a hydrogen atom, an alkyl group or a hydroxyalkyl group having 2 to 22 carbon atoms, preferably 3 to 14 carbon atoms, which may have an ether bond, It may be the same or different. The alkyl group and hydroxyalkyl group may be linear, branched or cyclic. Moreover, an alkoxyalkyl group is mentioned as an alkyl group which has an ether bond.

R ⁵ and R ⁶ are each a hydrogen atom, a cyclohexyl group, an octyl group, a 2-ethylhexyl group, a dodecyl group, a 2-hydroxyethyl group, a 2-hydroxypropyl group, a 3-hydroxypropyl from the viewpoint of deodorizing performance and availability. Group, 2-methoxyethyl group, 3-methoxypropyl group, 3-ethoxypropyl group, 3-isopropoxypropyl group, 3-butoxypropyl group, 3-octyloxypropyl group are preferable, particularly hydrogen atom, 2-ethylhexyl group , Hydroxyethyl group, 3-methoxypropyl group, 3-ethoxypropyl group, and 3-butoxypropyl group are preferable.

R ⁷ represents a hydrogen atom or a methyl group from the viewpoint of availability, and is preferably a hydrogen atom. R ⁸ represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and the alkyl group may be linear, branched or cyclic. R ⁸ is preferably a hydrogen atom or a methyl group from the viewpoint of availability, and particularly preferably a hydrogen atom. Although m shows the integer of 0-2, 0 or 1 is preferable from a viewpoint of deodorizing performance and availability.

  Examples of the amino compound represented by the general formula (2) or a salt thereof include organic acid amide compounds such as an acetamide compound, a propionic acid amide compound, and a butyric acid amide compound.

  Specific examples of the amino compound represented by the general formula (2) or a salt thereof include glycinamide (2-aminoacetamide), 2-amino-N-cyclohexylacetamide, 2-amino-N- (2-ethylhexyl) acetamide. 2-amino-N-octylacetamide, 2-amino-N-dodecylacetamide, 2-amino-N- (2-hydroxyethyl) acetamide, 2-amino-N- (2-hydroxypropyl) acetamide, 2-amino -N- (3-hydroxypropyl) acetamide, 2-amino-N- (2-methoxyethyl) acetamide, 2-amino-N- (3-methoxypropyl) acetamide, 2-amino-N- (3-ethoxypropyl) ) Acetamide, 2-amino-N- (3-n-propoxypropyl) acetamide, 2- Mino-N- (3-isopropoxypropyl) acetamide, 2-amino-N- (3-n-butoxypropyl) acetamide, 2-amino-N- (3-octyloxypropyl) acetamide, 2-amino-N- Cyclohexylpropionic acid amide, 2-amino-N- (2-ethylhexyl) propionic acid amide, 2-amino-N-octylpropionic acid amide, 2-amino-N-dodecylpropionic acid amide, 2-amino-N- (2 -Hydroxyethyl) propionic acid amide, 2-amino-N- (2-hydroxypropyl) propionic acid amide, 2-amino-N- (3-hydroxypropyl) propionic acid amide, 2-amino-N- (2-methoxy) Ethyl) propionic acid amide, 2-amino-N- (3-methoxypropyl) propionic acid 2-amino-N- (3-ethoxypropyl) propionic acid amide, 2-amino-N- (3-n-propoxypropyl) propionic acid amide, 2-amino-N- (3-isopropoxypropyl) propionic acid Acid amide, 2-amino-N- (3-n-butoxypropyl) propionic acid amide, 2-amino-N- (3-octyloxypropyl) propionic acid amide, 3-amino-N-cyclohexylpropionic acid amide, 3 -Amino-N- (2-ethylhexyl) propionic acid amide, 3-amino-N-octylpropionic acid amide, 3-amino-N-dodecylpropionic acid amide, 3-amino-N- (2-hydroxyethyl) propionic acid Amide, 3-amino-N- (2-hydroxypropyl) propionic acid amide, 3-amino-N- (3- Hydroxypropyl) propionic acid amide, 3-amino-N- (2-methoxyethyl) propionic acid amide, 3-amino-N- (3-methoxypropyl) propionic acid amide, 3-amino-N- (3-ethoxypropyl) ) Propionic acid amide, 3-amino-N- (3-n-propoxypropyl) propionic acid amide, 3-amino-N- (3-isopropoxypropyl) propionic acid amide, 3-amino-N- (3-n -Butoxypropyl) propionic acid amide, 3-amino-N- (3-octyloxypropyl) propionic acid amide, 4-amino-N-cyclohexylbutyric acid amide, 4-amino-N- (2-ethylhexyl) butyric acid amide, 4 -Amino-N-octylbutyric acid amide, 4-amino-N-dodecylbutyric acid amide, 4-amino-N- (2- Droxyethyl) butyric acid amide, 4-amino-N- (2-hydroxypropyl) butyric acid amide, 4-amino-N- (3-hydroxypropyl) butyric acid amide, 4-amino-N- (2-methoxyethyl) butyric acid amide, 4-amino-N- (3-methoxypropyl) butyric acid amide, 4-amino-N- (3-ethoxypropyl) butyric acid amide, 4-amino-N- (3-n-propoxypropyl) butyric acid amide, 4-amino -N- (3-isopropoxypropyl) butyric acid amide, 4-amino-N- (3-n-butoxypropyl) butyric acid amide, 4-amino-N- (3-octyloxypropyl) butyric acid amide, and the like Examples include salts with acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, and carbonic acid.

  Among these, from the viewpoint of deodorizing performance and availability, from glycinamide, 2-amino-N- (2-ethylhexyl) acetamide, 2-amino-N- (3-ethoxypropyl) acetamide, and salts thereof One or more selected are particularly preferred.

In the general formula (3), R ⁹ and R ¹⁰ represent a hydrogen atom, an alkyl group or a hydroxyalkyl group having 2 to 22 carbon atoms, preferably 3 to 14 carbon atoms, which may have an ether bond. The alkyl group and hydroxyalkyl group may be linear, branched or cyclic. Moreover, an alkoxyalkyl group is mentioned as an alkyl group which has an ether bond.

R ⁹ and R ¹⁰ are each a hydrogen atom, a cyclohexyl group, an octyl group, a 2-ethylhexyl group, a dodecyl group, a 2-hydroxyethyl group, a 2-hydroxypropyl group, a 3-hydroxypropyl, from the viewpoint of deodorizing performance and availability. Group, 2-methoxyethyl group, 3-methoxypropyl group, 3-ethoxypropyl group, 3-isopropoxypropyl group, 3-butoxypropyl group, 3-octyloxypropyl group are preferable, particularly hydrogen atom, 2-ethylhexyl group , Hydroxyethyl group, 3-methoxypropyl group, and 3-butoxypropyl group are preferable.

R ¹¹ represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and the alkyl group may be linear, branched or cyclic. R ¹¹ is preferably a hydrogen atom or a methyl group from the viewpoint of availability, and particularly preferably a hydrogen atom.

  Specific examples of the amino compound represented by the general formula (3) or a salt thereof include serine amide (2-amino-3-hydroxy-propionic acid amide), 2-amino-3-hydroxy-N-cyclohexylpropionic acid amide, 2-amino-3-hydroxy-N- (2-ethylhexyl) propionic acid amide, 2-amino-3-hydroxy-N-octylpropionic acid amide, 2-amino-3-hydroxy-N-dodecylpropionic acid amide, 2 -Amino-3-hydroxy-N- (2-hydroxyethyl) propionic acid amide, 2-amino-3-hydroxy-N- (2-hydroxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- ( 3-hydroxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- (2-methoxy ester) L) Propionic acid amide, 2-amino-3-hydroxy-N- (3-methoxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- (3-ethoxypropyl) propionic acid amide, 2-amino- 3-hydroxy-N- (3-n-propoxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- (3-isopropoxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- ( 3-n-butoxypropyl) propionic acid amide, 2-amino-3-hydroxy-N- (3-octyloxypropyl) propionic acid amide, and the like, and acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, and carbonic acid Of the salt.

  Among these, from the viewpoint of deodorizing performance and availability, serine amide, 2-amino-3-hydroxy-N- (2-ethylhexyl) propionic acid amide, 2-amino-3-hydroxy-N- (3-n -Butoxypropyl) propionic acid amide and one or more selected from salts thereof are particularly preferred.

  The amino compound represented by the general formula (2) or (3) is a known method, for example, after protecting the amino group with benzyloxycarboxylic acid chloride or the like after various amino acids are reacted with the corresponding amines, It can be synthesized by a method of performing catalytic hydrogen reduction using a catalyst or the like in a hydrogen atmosphere. As a hydrogenation catalyst, a catalyst in which a metal active component such as nickel, copper, platinum, cobalt, palladium or the like is supported on a carrier such as diatomaceous earth, alumina, silica gel, silica alumina, activated carbon, more specifically, a Pd / activated carbon catalyst. Etc. can be used.

  The amino compound represented by the general formulas (1) to (3) may be an optically active substance, a racemate, or a mixture thereof. The amino compounds represented by the general formulas (1) to (3) or salts thereof can be used alone or in admixture of two or more.

  (A) Content of a component is 0.001-5 mass% in the liquid mixture which concerns on this invention, 0.01-3 mass% is preferable, and 0.01-2 mass% is further more preferable. When it is 0.01% by mass or more, the deodorizing effect is effectively exhibited, and when it is 5% by mass or less, the water-absorbent resin can completely absorb the liquid mixture, and separation of the liquid mixture does not occur.

[Component (b)]
The component (b) of the present invention is not particularly limited as long as it is a water-absorbent resin, but is selected from (b1) acrylic acid or a salt thereof, an acrylate ester, and acrylamide from the viewpoint of water absorption and stability of the aqueous gel. One or more kinds selected from a crosslinked acrylic polymer comprising a monomer, a crosslinked product of (b2) isobutylene-maleic anhydride copolymer, and (b3) a crosslinked polyoxyethylene are preferable.

  (B1) Acrylic polymers include HISOB (manufactured by Korea Ai Seimitsu Chemical Co., Ltd., deionized water absorption ratio (with respect to the water-absorbing resin) 100-200 times), Aqualic CA K4 (Nippon Shokubai) Co., Ltd., water absorption magnification: 250 to 350 times, Aquaric CA H2 (manufactured by Nippon Shokubai Co., Ltd., water absorption magnification: 150 to 250 times), Aquaric CA H3 (Nihon Catalyst Co., Ltd., water absorption magnification: 70 to 140) Times), Sunfresh ST-250 (manufactured by Sundia Polymer Co., Ltd., absorption ratio 700 times), Sunfresh ST-250MPS (manufactured by Sundia Polymer Co., Ltd., absorption ratio 700 times), Sunfresh ST-500D (Sundia Polymer Co., Ltd.) Made by company, absorption ratio is 400 times), Sun Fresh ST-500MPSA (Sundia Polymer) Manufactured by Co., Ltd., absorption ratio 400 times), Sun Fresh ST-573 (manufactured by Sundia Polymer Co., Ltd., absorption ratio 400 times), Aqua Pearl DSC30 (manufactured by Sundia Polymer Co., Ltd., absorption ratio 400 times), Aqua Pearl E -200 (manufactured by Sundia Polymer Co., Ltd., absorption ratio is 380 times), Aqua Keep (manufactured by Sumitomo Seika Co., Ltd.) and the like. Moreover, (b2) As a crosslinked body of isobutylene-maleic anhydride copolymer, KI gel-201K (Kuraray Trading Co., Ltd., water absorption magnification is 200 times), KI gel 201K-F2 (Kuraray Trading Co., Ltd., water absorption) Magnification is 170 times), KI gel 201K-G1 (manufactured by Kuraray Trading Co., Ltd., water absorption magnification is 150 times), and the like. Moreover, as (b3) polyoxylene crosslinked body, Aqua Coke TW (Sumitomo Seika Co., Ltd., water absorption ratio is 30 to 40 times), Aqua Coke TWB (Sumitomo Seika Co., Ltd. water absorption ratio is 20 to 30 times). Etc.

  As an acrylic polymer, a crosslinked product of an acrylamide-acrylic acid (salt) copolymer, wherein the molar ratio of acrylamide units is 50 to 95 mol% with respect to the total of acrylamide units and acrylic acid (salt) units. preferable.

[Component (c)]
The aqueous gel deodorant of the present invention preferably contains a surfactant as the component (c). The component (c) is not particularly limited as long as it is a surfactant, but from the viewpoint of water absorption of the water absorbent resin, one or more selected from nonionic surfactants and amine oxide amphoteric surfactants are preferable. These may be used alone or in admixture of two or more.

  Nonionic surfactants include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, polyoxyalkylene aryl ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene castor oil, Examples include polyoxyethylene hydrogenated castor oil.

  From the viewpoint of the stability of the aqueous gel, polyoxyethylene lauryl ether (ethylene oxide average addition mole number: 6 to 30) is preferable.

  Amine oxide type amphoteric surfactants include N-alkyl-N, N-dimethylamine, N-alkyl-N, N-polyoxyethyleneamine, N-alkylpolyoxyethylene-N, N-dimethylamine, N- Examples thereof include compounds obtained by reacting an amine such as alkanoylamidopropyl-N, N-dimethylamine with hydrogen peroxide by a known method.

  (C) It is preferable to mix | blend a component with the liquid mixture which concerns on this invention, and to mix | blend with an aqueous gel deodorant, and content of (c) component is 0.01-20 in the liquid mixture which concerns on this invention. % By mass is preferable, more preferably 0.05 to 15% by mass, and still more preferably 0.1 to 10% by mass.

[Component (d)]
The aqueous gel deodorant of the present invention preferably contains a water-soluble solvent as the component (d). (D) As a component, the water-soluble organic solvent whose solubility (20 degreeC) with respect to water is 1 mass% or more is preferable. 1 mass% or more of this solubility means that the minimum mass of a solute that can be dissolved in 100 g of water at 20 ° C. is 1 g or more. Hereinafter, the solubility in water under these conditions may be simply referred to as solubility. Two or more kinds of compounds may be mixed to realize the above-described physical properties.

  From the viewpoint of the stability of the aqueous gel, the solubility of the component (d) of the present invention is preferably 3% by mass or more, and more preferably 5% by mass or more.

  Specific preferred water-soluble organic solvents include ethanol, propanol, isopropanol, ethylene glycol, propylene glycol, glycerin, and 1,3-butanediol, and glycerin, ethylene glycol, propylene glycol, and 1,3-butanediol. Further preferred.

  The component (d) is preferably blended with the liquid mixture according to the present invention and blended with the aqueous gel deodorant, and the content of the component (d) is 0.01 to 20 in the liquid mixture according to the present invention. % By mass, more preferably 0.1 to 10% by mass.

[Aqueous gel deodorant]
The aqueous gel deodorant of the present invention is further added to other deodorizers and generally added oils, sodium sulfate, N, N, N as long as the effects of the present invention are not impaired. -Other components such as salts such as trimethylglycine, pH adjusters, antioxidants, preservatives, bactericides / antibacterial agents, fragrances, pigments, and UV absorbers can be added. These components are preferably blended in the liquid mixture according to the present invention and blended in the aqueous gel deodorant.

  The pH of the liquid mixture according to the present invention is preferably 5.0 to 11.0, more preferably 5.0 to 10.0, and more preferably 5.0 to 9 at 20 ° C. from the viewpoint of water absorption of the water absorbent resin. 0.0 is more preferable. The balance of the liquid mixture according to the present invention is water.

  The pH of the liquid mixture according to the present invention can be adjusted by adding an acid such as hydrochloric acid or an alkali such as sodium hydroxide.

  The aqueous gel deodorant of the present invention contains the liquid mixture according to the present invention and the component (b). The mixing ratio of the liquid mixture and the component (b) depends on the water absorption capacity of the component (b), but the liquid mixture / (b) component = 100 / 0.5 to 100/20, more preferably 100/1 to 100/10. Is preferred.

  The aqueous gel deodorant of the present invention is a gel-like product prepared by mixing the liquid mixture according to the present invention and the component (b) and absorbing the liquid mixture in the component (b). As a method for obtaining the above, known methods used for the production of general gel-like fragrance / deodorant, food, gel composition for chemicals and the like can be widely employed. In the present invention, a method in which the liquid mixture according to the present invention is absorbed to swell the component (b) and gel is suitable. In these methods, the composition of the liquid mixture is usually reflected in the aqueous gel deodorant as it is.

  The aqueous gel deodorant can be used as a deodorant as it is, but it can be a stationary deodorant comprising an aqueous gel deodorant. For example, it can be stored in a self-supporting container or the like to be a stationary deodorant.

  When the aqueous gel deodorant of the present invention is housed in a self-supporting container or the like and used as a stationary deodorant, in a room, a toilet, a refrigerator, a shoebox, a car interior, etc., a malodorous component in the space, for example, Useful for deodorizing formaldehyde.

<Method for preparing aqueous gel deodorant>
A liquid mixture of 3.0 g of the liquid mixture of Table 1 and 0.1 g of the water-absorbing resin prepared using the ingredients shown in Table 1 are placed in a wide-mouthed standard bottle (PS-No. 6) and the lid is closed. Were mixed to prepare an aqueous gel deodorant. In addition, all of the liquid mixtures of Examples and Comparative Examples in Table 1 were absorbed by the water absorbent resin.

<Deodorization evaluation method>
0.2 g of the obtained aqueous gel deodorant is put into a 10 L Tedlar bag, and air is injected. Furthermore, 300 μl of formaldehyde 0.37% ethanol solution is injected and left in an environment of 25 ° C./65% RH. After standing for 5 hours, the formaldehyde concentration in the Tedlar bag is measured using a detection tube for formaldehyde measurement (No. 91, measurement range 2 ppm to 100 ppm, manufactured by Gastec Co., Ltd.). Without adding an aqueous gel, air and 300 μl of formaldehyde 0.37% ethanol solution were injected, allowed to stand for 5 hours, and the formaldehyde concentration measured with a detector tube was used as a blank. The blank formaldehyde concentration was 30 ppm. If the difference from the blank is 10 ppm or more, it can be said that the deodorizing performance is high.

The components in Table 1 are as follows. Further, “%” in Table 1 is mass%. The pH adjusting agent is hydrochloric acid, and the appropriate amount is an amount for adjusting the pH to the values shown in Table 1.
<(A) component>
(A-1): Tris (hydroxymethyl) aminomethane (a-2): 2-amino-1,3-propanediol (a-3): Glycinamide (a-4): 2-amino-3-hydroxy -N- (2-ethylhexyl) propionic acid amide <(b) component>
(B-1): Crosslinked product of isobutylene-maleic anhydride copolymer (KI gel 201K-G1, manufactured by Kuraray Trading Co., Ltd.)
(B-2): Acrylic acid (salt) cross-linked product (Aquaric CA H2, manufactured by Nippon Shokubai Co., Ltd.)
(B-3): Cross-linked product of acrylamide-acrylic acid (salt) copolymer (HISOB Korea, manufactured by Aisei Precision Chemical)
<(C) component>
(C-1): polyoxyethylene lauryl ether (ethylene oxide average addition mole number 9)
(C-2): Lauroylaminopropyldimethylamine oxide <(d) component>
(D-1): Ethylene glycol

Claims (6)

(A) A liquid mixture containing 0.001 to 5% by mass of one or more amino compounds selected from the compounds represented by the following general formulas (1) to (3) or a salt thereof and water (b) ) Aqueous gel deodorant absorbed in a water absorbent resin.

(In the formula, R ¹ represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms, and R ² represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or 1 to 1 carbon atoms. And R ³ represents an alkylene group having 1 to 5 carbon atoms, and R ⁴ represents an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms.)

(In the formula, R ⁵ and R ⁶ represent a hydrogen atom, an alkyl group having 2 to 22 carbon atoms which may have an ether bond or a hydroxyalkyl group, and may be the same or different. R ⁷ is a hydrogen atom. Or a methyl group, R ⁸ represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and m represents an integer of 0 to 2.)

(In the formula, R ⁹ and R ¹⁰ represent a hydrogen atom, an alkyl group having 2 to 22 carbon atoms which may have an ether bond or a hydroxyalkyl group, and may be the same or different. R ¹¹ is a hydrogen atom. Or an alkyl group having 1 to 6 carbon atoms.)   (A) the amino compound is tris (hydroxymethyl) aminomethane, 2-amino-2-methyl-1-propanol, 2-amino-1,3-propanediol, 2-amino-2-methyl-1,3- Propanediol, 2-amino-2-ethyl-1,3-propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-hydroxyethyl-1,3-propanediol, From glycinamide, serine amide, 2-amino-3-hydroxy-N- (2-ethylhexyl) propionic acid amide, 2-amino-3-hydroxy-N- (3-n-butoxypropyl) propionic acid amide and their salts The aqueous gel deodorant according to claim 1, which is one or more selected.   (B) a crosslinked acrylic polymer comprising a water-absorbing resin comprising a monomer selected from (b1) acrylic acid or a salt thereof, an acrylate ester and acrylamide; (b2) an isobutylene-maleic anhydride copolymer; The aqueous gel deodorant according to claim 1 or 2, which is at least one selected from a crosslinked polymer and (b3) a crosslinked polyoxyethylene.   Furthermore, the aqueous gel deodorant of any one of Claims 1-3 in which the said liquid mixture contains 0.01-20 mass% of (c) surfactant.   Furthermore, the liquid gel deodorant of any one of Claims 1-4 in which the said liquid mixture contains 0.01-20 mass% of (d) water-soluble solvent.   A stationary deodorant comprising the aqueous gel deodorant according to any one of claims 1 to 5.