WO2016199756A1 - ケトン系ガス吸着剤、ガス吸着剤組成物及び消臭性加工品 - Google Patents
ケトン系ガス吸着剤、ガス吸着剤組成物及び消臭性加工品 Download PDFInfo
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- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
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- C07C211/02—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C211/14—Amines containing amino groups bound to at least two aminoalkyl groups, e.g. diethylenetriamines
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- C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C243/24—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids
- C07C243/26—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids with acylating carboxyl groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C243/28—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids with acylating carboxyl groups bound to hydrogen atoms or to acyclic carbon atoms to hydrogen atoms or to carbon atoms of a saturated carbon skeleton
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- C07C279/02—Guanidine; Salts, complexes or addition compounds thereof
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Definitions
- the present invention relates to an adsorbent that adsorbs a ketone-based gas, a gas adsorbent composition including the adsorbent, and a deodorized processed product.
- diacetyl, 2,3-pentanedione, 2,3-hexanedione, etc. are known as sweat odor components peculiar to middle-aged men, and acetone, acetoacetic acid, ⁇ -hydroxybutyric acid, etc. are known as body odor components. All of which are unpleasant odors.
- activated carbon has been widely used as an adsorbent for reducing unpleasant odor or malodorous components.
- activated carbon has a black color tone and exhibits only physical adsorption, it is widely used in various applications. Use as an adsorbent is difficult.
- a disadvantage of physical adsorption is that any gas component is adsorbed, and therefore, in an open space, it is saturated immediately by continuing to adsorb gas other than bad odor.
- the gas once adsorbed may be a source of malodor and can only be used for products that can be replaced. Therefore, adsorbents having chemical adsorption properties have been developed.
- Patent Document 1 discloses a body odor suppressor containing an ascorbic acid fatty acid ester compound as an adsorbent that chemically adsorbs a ketone-based gas.
- Patent Document 2 discloses a composition for deodorizing physiological odor containing a plant extract.
- Patent Document 3 discloses an adsorbent comprising a carrier carrying at least two enzymes (complex enzymes) selected from the group consisting of oxidoreductases, transferases, hydrolases, desorption enzymes, isomerases and synthetic enzymes. Is disclosed.
- Patent Document 4 discloses a deodorizer obtained by coating activated carbon with an ion exchange resin.
- an adsorbent such as an ascorbic acid fatty acid ester compound disclosed in Patent Document 1 has an insufficient effect of adsorbing a ketone-based gas, and heat resistance when obtaining a resin molded product in combination with a thermoplastic resin or the like.
- An object of the present invention is to provide a ketone gas adsorbent and a gas adsorbent composition having high chemisorption performance of ketone gas and excellent workability and heat resistance, and a deodorized processed product having excellent chemisorption performance of ketone gas. Is to provide.
- a gas adsorbent containing a primary amine compound has excellent adsorption performance, and completed the present invention.
- the present invention is as follows. 1. A ketone-based gas adsorbent comprising a primary amine compound. 2. Item 2. The ketone-based gas adsorbent according to Item 1, wherein the primary amine compound is at least one selected from the group consisting of a hydrazide compound, an aminoguanidine compound, and a polyamine. 3. Item 3. The ketone-based gas adsorbent according to Item 2, wherein the aminoguanidine compound is aminoguanidine sulfate or aminoguanidine hydrochloride. 4). Item 4.
- Item 5. The ketone-based gas adsorbent according to Item 4, wherein the inorganic powder is at least one selected from a silicate compound, a tetravalent metal phosphate compound, silica gel, and zeolite. 6).
- Item 6. The ketone-based gas adsorbent according to Item 4 or 5, wherein the inorganic powder has a BET specific surface area of 80 m 2 / g or more. 7).
- a gas adsorbent composition comprising an adsorbent.
- a deodorized processed product comprising the ketone-based gas adsorbent according to any one of Items 1 to 7.
- the ketone-based gas adsorbent of the present invention chemically adsorbs a ketone-based gas and has an excellent deodorizing effect against odors containing the ketone-based gas.
- the primary amine compound is a hydrazide compound, an aminoguanidine compound or a polyamine
- the deodorizing effect is particularly excellent because it easily undergoes a Schiff reaction with a ketone.
- the ketone-based gas adsorbent of the present invention can be applied or kneaded to paper, fiber, resin molded product, etc., and has excellent processability.
- the ketone gas adsorbent of the present invention is excellent in heat resistance.
- the gas adsorbent composition of the present invention has a deodorizing effect on ketone-based gases and other gases.
- a deodorant processed product such as paper, nonwoven fabric, fiber, and resin molded product that exhibits excellent adsorption performance
- the deodorized processed product of the present invention can be used not only for deodorizing by using it in an atmosphere of a ketone gas, but also can suppress the generation of a ketone gas from itself.
- the ketone-based gas adsorbent of the present invention is characterized by containing a primary amine compound.
- the ketone-based gas adsorbent of the present invention may be composed only of a primary amine compound, or may be composed of a primary amine compound and another material.
- the appearance of the ketone-based gas adsorbent of the present invention is solid, and when the primary amine compound is liquid, the ketone-based gas adsorbent is a composite composed of a primary amine compound and another solid material. It is a thing.
- the ketone gas to be adsorbed is acetone, methyl ethyl ketone, methyl propyl ketone, methyl butyl ketone, diethyl ketone, methyl amyl ketone, diacetyl, acetoin, 2,3-pentanedione, 2,3-hexanedione.
- Gas of ketone such as.
- the primary amine compound is not particularly limited, but is preferably a compound that undergoes a Schiff reaction with a ketone.
- preferred primary amine compounds are hydrazide compounds, aminoguanidine compounds, and polyamines from the viewpoints of safety, deodorizing effect, economy, and the like. These compounds may be used alone or in combination of two or more.
- the hydrazide compound examples include a monohydrazide compound having one hydrazide group in the molecule, a dihydrazide compound having two hydrazide groups in the molecule, and a polyhydrazide compound having three or more hydrazide groups in the molecule. It is done.
- the said hydrazide compound may be used independently and can be used in combination of 2 or more type.
- Examples of the monohydrazide compound include a monohydrazide compound represented by the following general formula (1).
- R 1 represents a hydrogen atom, an alkyl group, or an aryl group which may have a substituent.
- the alkyl group represented by R 1 can be an aliphatic hydrocarbon group having 1 to 20 carbon atoms, such as a methyl group, an ethyl group, an n-propyl group, an n-butyl group.
- a linear alkyl group having 1 to 12 carbon atoms such as n-pentyl group, n-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group and n-undecyl group. preferable.
- the aryl group examples include a phenyl group, a biphenyl group, and a naphthyl group, and among these, a phenyl group is preferable.
- the substituent of the aryl group includes a halogen atom such as a hydroxy group, a fluorine atom, a chlorine atom, a bromine atom; a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, Examples thereof include a linear or branched alkyl group having 1 to 4 carbon atoms such as an isobutyl group.
- hydrazide compound represented by the general formula (1) examples include lauric acid hydrazide, salicylic acid hydrazide, form hydrazide, acetohydrazide, propionic acid hydrazide, p-hydroxybenzoic acid hydrazide, naphthoic acid hydrazide, 3- And hydroxy-2-naphthoic acid hydrazide.
- dihydrazide compound examples include dihydrazide compounds represented by the following general formula (2).
- H 2 NHN—X—NHNH 2 (2) (In the formula, X represents a —CO— group or a —CO—A—CO— group.
- A represents an alkylene group which may have a substituent, or an arylene group which may have a substituent. Show.)
- the alkylene group represented by A can be a divalent aliphatic hydrocarbon group having 1 to 20 carbon atoms, and includes a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, A linear alkylene group having 1 to 12 carbon atoms such as a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, a nonamethylene group, a decamethylene group, and an undecamethylene group is preferable.
- the substituent for the alkylene group include a hydroxy group.
- arylene group examples include a phenylene group, a biphenylene group, a naphthylene group, an anthrylene group, and a phenanthrylene group. Among these, a phenylene group and a naphthylene group are preferable.
- a halogen atom such as a hydroxy group, a fluorine atom, a chlorine atom, or a bromine atom; a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, or an isobutyl group
- straight-chain or branched alkyl groups having 1 to 4 carbon atoms, and the like.
- dihydrazide compound represented by the general formula (2) examples include oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, adipic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecanoic acid dihydrazide, and maleic acid.
- Examples thereof include dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydrazide, malic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, dimer acid dihydrazide, and dibasic acid dihydrazide such as 2,6-naphthoic acid dihydrazide.
- adipic acid dihydrazide is preferred.
- polyhydrazide compound examples include polyacrylic hydrazide.
- the hydrazide compound according to the present invention is preferably a dihydrazide compound, more preferably a dibasic acid dihydrazide, and particularly preferably adipic acid dihydrazide.
- aminoguanidine compound examples include aminoguanidine sulfate, diaminoguanidine sulfate, aminoguanidine hydrochloride, diaminoguanidine hydrochloride, triaminoguanidine hydrochloride and the like. These compounds may be used alone or in combination of two or more.
- aminoguanidine salt aminoguanidine sulfate and aminoguanidine hydrochloride are particularly preferable.
- the polyamine is not particularly limited as long as it has two or more amino groups in the molecule and at least one amino group is a primary amino group.
- the preferred properties of the polyamine are liquid at normal temperature.
- a polyamine having two or more primary amino groups in the molecule is more preferable.
- a lower aliphatic polyamine composed of only carbon atoms, hydrogen atoms and nitrogen atoms and having 10 or less carbon atoms is more preferred.
- the polyamine represented by the following general formula (3) is particularly preferable because it is liquid at room temperature, has a high decomposition temperature and boiling point, and has high reactivity with a ketone gas.
- n is an integer of 0 to 3.
- the polyamine represented by the general formula (3) is ethylenediamine, diethylenetriamine, triethylenetetramine, and tetraethylenepentamine.
- the polyamine represented by following General formula (4) can be used.
- H 2 N—R 2 —NH 2 (4) (In the formula, R 2 is a linear or branched divalent hydrocarbon group having 3 or more carbon atoms.)
- Examples of the polyamine represented by the general formula (4) include lower aliphatic polyamines such as trimethylenediamine, propylenediamine, and tetramethylenediamine.
- the said polyamine may be used independently and can be used in combination of 2 or more type.
- high-boiling triethylenetetramine (boiling point: 278 ° C.) and / or tetraethylenepentamine (boiling point: 330 ° C.)
- a gas absorbent with significantly improved heat resistance can be provided.
- the primary amine compound according to the present invention has a solid or liquid property.
- a solid it can be in the form of a lump, powder or the like.
- a liquid it is preferable to make it adhere to the surface of another material.
- a preferred embodiment of the ketone-based gas adsorbent is a composite in which a primary amine compound is supported on an inorganic powder.
- the mass ratio of the primary amine compound and the inorganic powder is preferably 5:95 to 60:40, more preferably 5:95 to 50:50, and still more preferably 5:95 to 40:60.
- the inorganic powder used in the present invention can be mixed with a primary amine compound, it can be used without any limitation on its component and shape.
- the inorganic powder include silicate compounds, tetravalent metal phosphate compounds, silica gel, zeolite, mica, hydrotalcite, sepiolite, attapulgite, bentonite and the like.
- silicate compounds, tetravalent metal phosphate compounds, silica gel, mica, and the like are preferable because they can improve adsorption performance.
- the inorganic powder is adjusted to have a pH of 2.0 to 8.0 when dispersed in purified water so that the concentration thereof is 5% by mass.
- Examples of the inorganic powder before pH adjustment include mica, hydrotalcite, sepiolite, attapulgite, bentonite, and zeolite Y type.
- the acid used for this pH adjustment is preferably an inorganic acid, more preferably sulfuric acid or phosphoric acid.
- the silicate compound is not particularly limited, but aluminum silicate and magnesium silicate are preferable.
- amorphous aluminum silicate and amorphous magnesium silicate are more preferable from the viewpoint of water resistance.
- amorphous aluminum silicate is particularly preferred because the composite of the primary amine compound has high ketone adsorption performance in a high temperature atmosphere.
- These silicate compounds may be natural products or synthetic products.
- the silicate compound is preferably a compound having a pH of 2.0 to 8.0 when dispersed in purified water so that its concentration is 5% by mass.
- synthetic aluminum silicate is represented by the following formula (5).
- Magnesium silicate is represented by the following formula (6).
- MgO ⁇ zSiO 2 ⁇ mH 2 O (6) (In the formula, z is a positive number of 1 or more, more preferably z is 1 to 20, and m is a positive number of 0.1 to 20, more preferably z is 1 to 15. And m is 0.3 to 10, particularly preferably z is 3 to 15, and m is 1 to 8.)
- the synthetic silicate compound is prepared by, for example, mixing an aqueous solution of an aluminum salt or magnesium salt with an aqueous solution of an alkali metal silicate salt, adding an acid or an alkali as necessary at room temperature and atmospheric pressure, and adjusting the pH. Is kept at about 3 to about 7 and co-precipitated, for example, by aging at about 40 ° C. to about 100 ° C., or by rinsing, dehydrating and drying the co-precipitate without aging It can be obtained.
- the amount of water-soluble aluminum salt and alkali metal silicate used is such that the SiO 2 / Al 2 O 3 molar ratio is 6 or more, preferably in the range of 6 to 50, more preferably. Select to be in the range of 8-15.
- the amount of magnesium water-soluble salt and alkali metal silicate used is such that the molar ratio of SiO 2 / MgO is 1 or more, preferably in the range of 1-20, more preferably 1- Select to be in the 15 range.
- a water-soluble salt of aluminum or magnesium is added to silica sol, and then the pH of the system is maintained at about 3 to 7 with acid or alkali. Then, the mixture can be sufficiently uniformly mixed, and further heated, for example, to about 40 ° C. to about 100 ° C. for aging, and then washed with water, dehydrated and dried. The aging step is not always necessary.
- the amount of water-soluble salts of silica sol and aluminum or magnesium may be selected in the same manner as described above SiO 2 / Al 2 O 3, SiO 2 / MgO.
- amorphous aluminum silicate or amorphous magnesium silicate is not synthesized individually, but a compound containing both metals is mixed from a mixed aqueous solution of aluminum and magnesium water-soluble salts. It can also be synthesized.
- the tetravalent metal phosphate compound is preferably a tetravalent metal phosphate compound that is insoluble or hardly soluble in water.
- Specific examples of the tetravalent metal phosphate compound include zirconium phosphate, titanium phosphate, and tin phosphate. These compounds include crystalline and amorphous compounds having various crystal systems, such as ⁇ -type crystals, ⁇ -type crystals, ⁇ -type crystals, NASICON-type crystals, and any of these compounds can be used. .
- the ⁇ -type crystalline compound is preferable because of its high water resistance and high ketone-based gas adsorption performance in a high-temperature atmosphere of a composite comprising a primary amine compound.
- the tetravalent metal phosphate compound is preferably a compound having a pH of 2.0 to 7.0 when dispersed in purified water so that its concentration is 5% by mass.
- silica gel those having various characteristics whose surface area or pore diameter is adjusted by the production method can be used.
- An example of a method for producing silica gel is a method in which a gel obtained by adding sulfuric acid to water glass is washed with water, dried and pulverized.
- the silica gel is preferably a compound having a pH of 2.0 to 7.0 when dispersed in purified water so that its concentration is 5% by mass.
- the zeolite may be a natural product or a synthetic product.
- the structure of zeolite varies, but any known one can be used. Examples of the zeolite include A type, X type, Y type, ⁇ type, ⁇ type, ZSM-5, and the like.
- the zeolite has a pH of preferably 2.0 to 9.0, more preferably 2.0 to 8.0 when dispersed in purified water so that its concentration is 5% by mass. It is preferable that When the pH of the dispersion is outside the range of 2.0 to 9.0, it is preferable to adjust within this range.
- the BET specific surface area of the inorganic powder is preferably 80 m 2 / g or more, more preferably 100 to 700 m 2 / g.
- the shape and size of the inorganic powder are not particularly limited, but the average particle size is preferably 0.1 to 20 ⁇ m, more preferably 1.0 to 10 ⁇ m.
- the composite can be obtained by mixing the inorganic powder or the dispersion thereof with the primary amine compound or the solution or the dispersion thereof, and then drying or heating as necessary. In addition, while stirring the inorganic powder at a temperature between room temperature and about 60 ° C., the primary amine compound solution is added dropwise or sprayed thereto, and then dried or heated as necessary.
- the dispersion of the inorganic powder and the primary amine compound solution may be an aqueous solution or an organic solvent such as alcohol, but is preferably an aqueous solution.
- the ratio of the usage-amount of inorganic powder and a primary amine compound is as follows from a viewpoint of the adsorption effect of a ketone type gas.
- the amount of the primary amine compound used is preferably 5 to 200 parts by weight, more preferably 10 to 100 parts by weight, and still more preferably 15 to 50 parts by weight with respect to 100 parts by weight of the inorganic powder.
- the drying temperature is preferably 60 ° C. to 140 ° C., more preferably 80 ° C. to 120 ° C., and may be performed under reduced pressure.
- the processing time of the drying process may be set according to conditions because there is an optimal time depending on the drying temperature, the processing amount, and the apparatus.
- the water resistance of the gas adsorbent composed of the composite can be improved by performing a heat treatment at 80 ° C. to 240 ° C., preferably 90 ° C. to 220 ° C.
- the heating temperature is preferably 110 ° C. to 150 ° C., more preferably 120 ° C. to 130 ° C.
- the heat treatment time may be set according to conditions because there is an optimum time depending on the drying temperature, the amount of treatment, and the apparatus. In producing the ketone-based gas adsorbent of the present invention, the drying step and the heat treatment may be performed together.
- the ketone-based gas adsorbent of the present invention may be composed of only a primary amine compound, or a composite composed of a primary amine compound and another material (such as inorganic powder). It may be a thing.
- the powder is preferably in the form of powder, and the average particle diameter is preferably 0.01 to 50 ⁇ m, more preferably 0.02 to 20 ⁇ m, from the viewpoint of the adsorption effect of the ketone-based gas.
- the ketone-based gas adsorbent of the present invention is also characterized by high ketone-based gas adsorption performance under a high-temperature atmosphere.
- the adsorption performance in a high-temperature atmosphere is that, for example, when a fiber or a resin molded article containing the ketone gas adsorbent of the present invention is heated, generation of ketone gas from these can be suppressed.
- the ketone-based gas adsorbent of the present invention adsorbs a ketone-based gas by chemical adsorption, and can maintain the adsorption state even at, for example, 40 ° C. to 90 ° C. Therefore, once adsorbed ketone-based gas is not released.
- the ketone gas adsorbent of the present invention can be used in combination with other ketone gas adsorbents such as activated carbon, zeolite, and various plant extracts.
- the ketone gas adsorbent of the present invention can also be used in combination with an adsorbent that adsorbs a gas other than the ketone gas.
- the gas adsorbent composition of the present invention includes the ketone gas adsorbent of the present invention, a basic gas adsorbent, a sulfur gas adsorbent, and an organic acid gas adsorbent. And at least one gas adsorbent selected from the group consisting of agents.
- the properties of the gas adsorbent-containing composition of the present invention are not particularly limited and may be solid or liquid, but the composition is a ketone-based gas adsorbent, a basic gas adsorbent, a sulfur-based gas adsorbent, and organic. When it comprises at least one gas adsorbent selected from the group consisting of acid gas adsorbents, it is preferably a solid mixture.
- the basic gas adsorbent is an adsorbent that adsorbs a basic gas such as ammonia or trimethylamine.
- a basic gas such as ammonia or trimethylamine.
- the basic gas adsorbent include tetravalent metal phosphate compounds that are insoluble or hardly soluble in water.
- tetravalent metal phosphate compound include zirconium phosphate, titanium phosphate, tin phosphate and the like. These compounds include crystalline and amorphous compounds having various crystal systems, such as ⁇ -type crystals, ⁇ -type crystals, ⁇ -type crystals and NASICON-type crystals.
- the sulfur-based gas adsorbent is an adsorbent that adsorbs a sulfur-based gas such as hydrogen sulfide or methyl mercaptan.
- sulfur-based gas adsorbent include tetravalent metal phosphate compounds carrying zinc ions, at least one metal selected from copper, zinc and manganese, zinc oxide, copper silicate, and zinc silicate. .
- a copper ion is particularly preferable because of its high adsorption effect for hydrogen sulfide and the like.
- the tetravalent metal phosphate compound When preparing a tetravalent metal phosphate compound carrying metal ions, the tetravalent metal phosphate compound may be brought into contact with a salt solution of metal ions and carried by ion exchange or the like.
- the amount of metal ions supported can be freely adjusted as desired up to 100% within the ion exchange capacity of the tetravalent metal phosphate compound.
- zinc oxide, copper silicate, and zinc silicate those having a large specific surface area are preferable because of high adsorption performance.
- the organic acid gas adsorbent is an adsorbent that adsorbs acetic acid, isovaleric acid, butyric acid, and the like.
- Examples of the organic acid gas adsorbent include hydrated zirconium oxide and hydrated titanium oxide.
- Hydrated zirconium oxide can be produced by hydrolyzing a zirconium-containing solution such as an aqueous zirconium oxychloride solution with water or an alkaline solution.
- Various names such as zirconium oxyhydroxide, zirconium hydroxide, hydrous zirconium oxide, and zirconium oxide hydrate are used as the hydrated zirconium oxide, and these are the same compounds.
- the content ratio of is not particularly limited, but preferably 40 to 90% by mass and 10 to 60% by mass, and more preferably 60 to 80% by mass and 20 to 40% by mass when the total of both is 100%. %.
- the lower limit of the content of the primary amine compound is preferably 5% by mass and more preferably 10% by mass with respect to the entire composition.
- the gas adsorbent component contained in the gas adsorbent-containing composition of the present invention is preferably in powder form.
- the average particle size is preferably from 0.01 to 50 ⁇ m, more preferably from 0.02 to 20 ⁇ m, from the viewpoint of the effect of adsorbing ketone-based gas and the like.
- the gas adsorbent-containing composition containing the gas adsorbent component having the average particle diameter can be used for both powder paints and liquid paints.
- the gas adsorbent or the gas adsorbent-containing composition of the present invention may be granulated.
- a conventionally known method for granulating powder can be applied to the method for producing the granular material.
- alumina sol, clay or the like is used as a binder to form granules.
- the particle size can be variously adjusted depending on the hardness, density, crushing strength, etc. of the granular material, but is preferably 0.1 to 3 mm for ease of handling.
- size is not limited, it can be set as the deodorizing product by which the gas adsorbent or gas adsorbent containing composition of this invention was accommodated in the capsule.
- the gas adsorbent or gas adsorbent-containing composition of the present invention is effective for tobacco odor deodorization, life odor deodorization, body odor deodorization, manure odor deodorization, garbage odor deodorization, and the like.
- a powder, granule or granular gas adsorbent or a gas adsorbent-containing composition can be packed into, for example, a cartridge to obtain a deodorant product.
- the gas adsorbent-containing composition of the present invention comprises a preservative, a precipitation inhibitor, a pH adjuster, an antibacterial agent, a fragrance, an anionic surfactant, a cationic surfactant, and a nonionic surfactant.
- a preservative e.g., a preservative, a precipitation inhibitor, a pH adjuster, an antibacterial agent, a fragrance, an anionic surfactant, a cationic surfactant, and a nonionic surfactant.
- Various additives such as amphoteric surfactants, colorants, fining agents, viscosity modifiers, and essential oils can be contained.
- preservatives examples include benzoic acid, sorbic acid, propionic acid, dehydroacetic acid and salts thereof; organic acid esters such as butyl paraoxybenzoate and isobutyl paraoxybenzoate; inorganic such as sodium sulfite, sodium hyposulfite and sodium pyrosulfite Salts: plant-derived components such as pectin extract.
- the precipitation inhibitor examples include powders made of silicon dioxide, magnesium stearate, etc .; surfactants such as polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan monostearate; gelling agents such as xanthan gum and polyethylene glycol, and the like. Can be mentioned.
- pH adjuster examples include citric acid, fumaric acid, DL-malic acid and salts thereof; carbonates such as sodium bicarbonate and potassium carbonate; phosphates such as phosphoric acid and sodium dihydrogen phosphate and the like.
- antibacterial agents examples include silver-based inorganic antibacterial agents, trichlorocarbanilide, benzalkonium chloride, benzethonium chloride, halocarban, chlorhexidine hydrochloride, dihydrofarnesol, isopropylmethylphenol, and the like.
- the gas adsorbent-containing composition of the present invention can contain a gelling agent.
- the gelling agent include seaweed polysaccharides such as carrageenan and sodium alginate; seed polysaccharides such as guar gum and tamarind seed gum; plant sap polysaccharides such as gum arabic and tragacanth gum; fermentation polysaccharides such as xanthan gum and gellan gum; And cellulose derivatives such as carboxymethylcellulose.
- the gas adsorbent-containing composition of the present invention contains a gelling agent, it can be a solid or semi-solid deodorant product.
- a gas adsorbent-containing dispersion that is one of raw materials for producing a deodorant processed product can be prepared using the gas adsorbent or the gas adsorbent-containing composition of the present invention.
- the method for producing the gas adsorbent-containing dispersion include a method of dispersing the gas adsorbent or the gas adsorbent-containing composition as it is in a dispersion medium, a method of dispersing in a dispersion medium using a dispersant, and the like.
- the gas adsorbent of the present invention is a composite, after preparing a dispersion of a primary amine compound and a dispersion of an inorganic powder as a carrier, these should be mixed. Can do.
- the average particle size of the gas adsorbent or gas adsorbent-containing composition used at this time is preferably 0.01 to 50 ⁇ m because reaggregation is suppressed and the dispersibility is excellent.
- the gas adsorbent-containing dispersion can contain an antifoaming agent, a preservative, a viscosity modifier, and the like as necessary.
- a sand mill, a disper, a ball mill, etc. can be used.
- the dispersion medium can be used without limitation as long as it has water solubility and hydrophilicity.
- the protic solvent include water, alcohol (ethanol, glycerin, etc.), alkylene glycol, and the like.
- the aprotic solvent include dimethylformamide, dimethylacetamide, dimethyl sulfoxide, tetrahydrofuran, acetone and the like.
- the protic solvent and the aprotic solvent may be used alone or in combination.
- water and alcohol are preferable, More preferably, it is water.
- the above dispersant is not particularly limited.
- examples of the dispersant include alkenyl succinate, alkyl benzene sulfonate, alkyl naphthalene sulfonate, alkyl sulfate ester salt, higher alcohol sulfate ester salt, polyoxyethylene alkyl ether sulfate ester salt, dialkyl sulfosuccinate salt, alkyl phosphorus salt.
- Anionic surfactants such as acid ester salts, phosphate ester copolymers, and polycarboxylic acid type polymer surfactants; nonions such as polyoxyethylene alkyl ether, polyoxyethylene alkyl allyl ether, and organically modified organopolysiloxane Cationic surfactants such as alkylamine salts and quaternary ammonium salts; Betaine amphoteric surfactants such as alkylbetaines and amide betaines; Polyphosphates such as pyrophosphates, tripolyphosphates and triethanolamines Amine, and the like. When using the said dispersing agent, it may be used independently and may be used in combination of 2 or more type.
- a dispersant having an acidic functional group such as a carboxyl group, a sulfone group, or a phosphate group is preferable.
- the dispersant in this case may have a surface active effect.
- a dispersant having an acidic functional group may be used in combination with a nonionic dispersant.
- a copolymer containing an acidic functional group is more preferable.
- the basic skeleton of the copolymer may be composed of an ester chain, a vinyl chain, an acrylic chain, an ether chain, a urethane chain, or the like.
- a polymer in which some of the hydrogen atoms in the molecule are substituted with halogen atoms may also be used.
- acrylic resins, polyester resins and alkyd resins are preferred, and acrylic resins and polyester resins are particularly preferred.
- the acidic functional group contained in the polymer is preferably a phosphoric acid group.
- These acidic functional groups may be randomly arranged in the resin molecule, but those having an acidic functional group arranged at the terminal portion in the molecule by a block or graft structure are preferred. This is because when the gas adsorbent is adsorbed, it is easy to adopt a dispersion stabilization structure of the adsorbent by solvation.
- the counter cation include alkali metal salts, ammonium salts, and amine salts. Of these, alkyl ammonium salts are particularly preferred.
- the acid value of the dispersant having an acidic functional group is preferably 5 to 150 mgKOH / g, more preferably 30 to 130 mgKOH / g.
- the acid value of the dispersant is in the range of 5 to 150 mgKOH / g, the dispersant is well adsorbed on the surface of the adsorbent particles, and excellent dispersion stability is obtained.
- the weight average molecular weight of the dispersant having an acidic functional group is preferably 800 to 100,000, more preferably 800 to 10,000. If the weight average molecular weight is in the range of 800 to 100,000, a good dispersion effect can be obtained, and no dispersoid aggregation and no increase in the viscosity of the dispersion will occur.
- dispersant having an acidic functional group examples include “Disperbyk-110, 170, 180 and 190” (trade name) manufactured by BYK-Chemie, “SER-AD FA192” (trade name) manufactured by SERVODELDEN BV, and GENECA Colors. "Solsperse 3000, 9000, 13240, 13940, 17000, 17240, 17940, 21000, 24000, 26000 and 27000” (trade name), "Floren G-700” (trade name) manufactured by Kyoeisha Chemical Co., Ltd., manufactured by Ajinomoto Co., Inc. Commercially available products such as “Azisper PA111” (trade name) can be used.
- the amount of the dispersant used for the production of the gas adsorbent-containing dispersion is preferably 0.1 to 15 parts by mass with respect to 100 parts by mass of the gas adsorbent or the gas adsorbent-containing composition from the viewpoint of dispersibility. More preferably, it is 0.5 to 12 parts by mass, and particularly preferably 1 to 10 parts by mass.
- any of foam breaking property, foam suppressing property and defoaming property may be used.
- the foam-breaking antifoaming agent include a polysiloxane solution.
- the viscosity modifier is not particularly limited as long as it can adjust the viscosity of the dispersion.
- examples of the viscosity modifier include cellulose-based thickeners such as methylcellulose, carboxymethylcellulose, methylhydroxycellulose, methylhydroxypropylcellulose, and hydroxyethylcellulose; natural polysaccharides such as gum arabic, trangan gum, and guar gum; various polyacrylamide polymers; Examples thereof include polyethylene oxide and polyvinyl alcohol.
- the solid content of all gas adsorbents in the gas adsorbent-containing dispersion is preferably 1 to 60% by mass, more preferably 3 to 40% by mass, and still more preferably 5 to 25% by mass. is there.
- a gas adsorbent-containing dispersion having a solid content of 1 to 60% by mass has good handling properties and can be used as a spray material, a lotion material, an emulsion, etc., and is suitable as a cosmetic material. Moreover, it is suitable for preparation of a gas adsorbent-containing processing fluid described later.
- a gas adsorbent-containing working fluid that is a coating composition (liquid paint) to be applied to a base material and the like to obtain a deodorized processed product by blending a binder with the gas adsorbent-containing dispersion.
- the binder is not particularly limited, but is generally used for surface treatment of, for example, acrylic or urethane fibers, sheets (nonwoven fabrics, woven fabrics, etc.) containing these fibers, resin sheets or plates.
- the binder alkyd resin, amino alkyd resin, acrylic resin, vinyl chloride resin, silicone resin, fluororesin, epoxy resin, urethane resin, saturated polyester resin, etc.
- the binder alkyd resin, amino alkyd resin, acrylic resin, vinyl chloride resin, silicone resin, fluororesin, epoxy resin, urethane resin, saturated polyester resin, etc.
- the binder may be of a type that forms a film by any mechanism, and in the case of curing the coating film, it may be an oxidation polymerization type, a moisture polymerization type, a heat curing type, a catalyst curing type, an ultraviolet curing type, a polyol curing type, or the like. it can.
- the binder is preferably used so that the total of the binder and the solid content of the gas adsorbent component in the dispersion is 5 to 50% by mass with respect to the gas adsorbent-containing processing liquid.
- the solid content of the gas adsorbent component and the binder content in the gas adsorbent-containing processing liquid are determined from the viewpoint of adhesion to the substrate and the like and adsorbability of ketone-based gas, etc.
- the binder is preferably 10 to 300 parts by mass with respect to 100 parts by mass. When the content ratio of the binder is 10 to 300 parts by mass, a sufficient adhering force can be obtained and the gas adsorbent component can be removed when the gas adsorbent-containing processing liquid is spread on fibers, nonwoven fabrics, sheets and the like. There is no. Further, the gas adsorbent component is not covered with the binder and the adsorption performance is not deteriorated.
- the gas adsorbent-containing processing liquid can be easily prepared by a method of mixing raw material components using a general apparatus such as a ball mill, a roll mill, a disper or a mixer.
- a deodorant processed product by application of the gas adsorbent-containing processing liquid, a deodorizing fiber, a deodorizing sheet (including a deodorizing film), a garment having a deodorizing function, a deodorized molded product ( Plate, container, lid, housing, etc.), deodorizing wall, and the like.
- These deodorant processed products have a film obtained by applying a gas adsorbent-containing processing liquid to the surface of a substrate and then drying.
- the raw material sheet before processing is not particularly limited, and the material can be made according to the use, etc., organic materials such as resin and paper, inorganic materials, or composites thereof It can be a thing.
- the configuration of the raw material sheet for example, the air permeability from one surface side to the other surface side is not particularly limited.
- the raw material sheet include Japanese paper, synthetic paper, non-woven fabric, resin film and the like, and particularly preferable raw material sheet is paper made of natural pulp and / or synthetic pulp.
- natural pulp is used, gas adsorbent particles are easily sandwiched between finely branched fibers, and a practical carrier can be obtained.
- synthetic pulp has an advantage of excellent chemical resistance.
- the gas adsorbent component contained in the gas adsorbent-containing composition may be contained over the entire surface from the one side to the other side of the raw material sheet. It may be disposed on the surface layer or the surface layer on the other surface side, or may be disposed on the inside excluding the surface layer.
- the amount of the gas adsorbent component contained in the deodorant sheet is not particularly limited. In general, if the amount of the gas adsorbent component supported is increased, the deodorizing property can be exerted strongly and can be sustained for a long period of time, but even if it is supported to a certain extent, there is no significant difference in the deodorizing effect. Therefore, the loading amount of the gas adsorbent component is preferably 0.1 to 10 parts by mass per 100 parts by mass of the raw material sheet.
- the deodorant sheet is, for example, cosmetic paper, medical wrapping paper, food wrapping paper, electrical equipment wrapping paper, nursing paper products, freshness retaining paper, paper clothing, air cleaning filters, wallpaper, tissue paper, toilet It can be used as paper or the like.
- the method for producing a deodorant sheet using the gas adsorbent-containing processing liquid is not particularly limited.
- the gas adsorbent-containing processing liquid can be applied, immersed, or sprayed on a base paper or a fiber sheet.
- the supported amount of gas adsorbent component it is preferable to coat such that 0.05 ⁇ 10g / m 2 approximately.
- the primary amine compound A method such as spraying a solution, a paper making process, a paper making method using a slurry containing the gas adsorbent-containing composition and pulp, and the like can be applied.
- a cationic or anionic flocculant is added at 5% by mass or less to the slurry, respectively.
- Agglomerates were produced, and the obtained agglomerates were used to make paper by a known method, and then dried at, for example, 100 ° C. to 190 ° C. so that the gas adsorbent component was supported on the paper.
- a deodorizing sheet can be obtained.
- the deodorant processed product of the present invention may be one in which the gas adsorbent component is integrated with the base material as a mode other than that due to the film. That is, a deodorized product containing a gas adsorbent component in a base material made of an inorganic material or an organic material can be used as a deodorized processed product.
- the deodorant processed product of the present invention is preferably a resin molded product or a foam molded product using a base material made of an organic material.
- a gas adsorbent-containing composition containing a resin is used as a molding material.
- this resin is a thermoplastic resin
- the gas adsorbent-containing composition may be a mixture containing a thermoplastic resin and a gas adsorbent component, or may be a melt-kneaded product.
- the resin molded product can be produced by introducing the gas adsorbent-containing composition into a molding machine.
- the gas-adsorbent containing composition may contain pigments, dyes, antioxidants, anti-light stabilizers, antistatic agents, foaming agents, impact-strengthening agents, glass fibers, etc. Further, additives such as a moisture-proofing agent and a bulking agent can be contained. Conventionally known molding methods such as injection molding, extrusion molding, inflation molding, vacuum molding, and foam molding can be applied as a molding method for producing the resin molded product or the foam molded product.
- Examples of deodorant processed products containing the organic material include, for example, housings for household appliances such as air purifiers and refrigerators, general household items such as trash cans, drainers, care products such as portable toilets, furniture, bedding, and deodorants.
- Examples include fibers, deodorizing sheets (including deodorizing films), other deodorizing molded products (plates, containers, lids, casings, etc.), deodorizing walls, and the like.
- Examples of the deodorant processed product containing the gas adsorbent or gas adsorbent-containing composition of the present invention include deodorant fibers, deodorant paints, deodorant sheets, and deodorant resin molded products.
- Deodorant fibers containing the gas adsorbent or gas adsorbent-containing composition of the present invention include clothing, underwear, stockings, socks, futons, futon covers, cushions, blankets, carpets, curtains, sofas, covers, sheets, It can be used for many textile products including car seats, car mats and air filters.
- the deodorant paint containing the gas adsorbent or the gas adsorbent-containing composition of the present invention can be used on the inner wall, outer wall, inner wall of a railway vehicle, and the like.
- the deodorant sheet containing the gas adsorbent or the gas adsorbent-containing composition of the present invention is a medical wrapping paper, a food wrapping paper, a freshness retaining paper, a paper garment, an air cleaning filter, a wallpaper, a tissue paper.
- the deodorant resin molded product containing the gas adsorbent or gas adsorbent-containing composition of the present invention includes home appliances such as air purifiers and refrigerators, general household items such as trash cans and drainers, portable toilets, etc. It can be used for various care products and daily items.
- the gas adsorbent or gas adsorbent-containing composition of the present invention and the deodorized processed product containing the same generate odor from clothing when body odor or physiological odor adheres to clothing such as underwear, stockings, and hats. It can also be used as a means for preventing or masking the generated odor.
- the gas adsorbent or the gas adsorbent-containing composition of the present invention is a material that generates a ketone-based gas from the base material itself, such as a plywood, a laminated material, a flooring material, a particle board, a building material such as a heat insulating material, or a floor carpet.
- a ketone-based gas from the base material itself, such as a plywood, a laminated material, a flooring material, a particle board, a building material such as a heat insulating material, or a floor carpet.
- Mute pads, cushioning materials, car seats, headrests, armrests, door trims, molded ceilings, sun visors, rear package trays, instrument panels, dash insulators, etc. Can be reduced.
- BET Specific Surface Area According to JIS Z8830 “Method for Measuring Specific Surface Area of Powder (Solid) by Gas Adsorption” (2001 revised version), BET specific surface area was measured using a continuous flow surface area meter “SA-6200” manufactured by Horiba, Ltd. (Model name) was used for measurement.
- Adsorption capacity 0.01 g of adsorbent powder is placed in a 5 L test bag made of a vinyl alcohol polymer film, and 3 L of vaporized acetone, methyl ethyl ketone or diacetyl (initial concentration 300 ppm) is injected therein at 1 hour at 20 ° C.
- the residual gas concentration in the test bag after storage was measured with a gas detector tube.
- the adsorption capacity is indicated by the adsorbed gas volume per 1 g of the sample.
- Example 1-1 An aqueous solution obtained by dissolving 3 g of white aminoguanidine sulfate in 10 mL of ion-exchanged water was sprayed on 10 g of amorphous aluminum silicate particles having a white surface, a specific surface area of 605 m 2 / g, and an average particle size of 6 ⁇ m. Mix under 20 minutes. The pH when the amorphous aluminum silicate particles were dispersed in purified water at 5% by mass was 6.5. Subsequently, the obtained spray was vacuum-heated at 100 ° C. for 60 hours to obtain about 13 g of a white powder. And the adsorption capacity of acetone or diacetyl of the adsorbent consisting of this white powder was measured. The results are shown in Table 1.
- Example 1-2 An aqueous solution in which 2 g of white adipic acid dihydrazide is dissolved in 10 mL of ion-exchanged water is sprayed on 10 g of white ZSM type zeolite particles having a specific surface area of 388 m 2 / g and an average particle diameter of 2 ⁇ m, and then at room temperature for 20 minutes. Mixed. The pH when the zeolite particles were dispersed in purified water at 5% by mass was 8.0. Next, the obtained spray was heated at 120 ° C. for 32 hours to obtain about 12 g of white powder. And the adsorption capacity of acetone or diacetyl of the adsorbent consisting of this white powder was measured. The results are shown in Table 1.
- Example 1-3 An aqueous solution in which 3 g of white diethylenetriamine was dissolved in 10 mL of ion-exchanged water was sprayed on 10 g of silica gel particles having a white surface, a specific surface area of 218 m 2 / g, and an average particle size of 12 ⁇ m, and then mixed at room temperature for 20 minutes.
- the pH when silica gel particles were dispersed in purified water at 5% by mass was 6.8.
- the obtained spray was heated at 100 ° C. for 55 hours to obtain about 13 g of a white powder.
- the adsorption capacity of acetone or diacetyl of the adsorbent consisting of this white powder was measured. The results are shown in Table 1.
- Example 1-4 The adsorption capacity of acetone or diacetyl of the succinic dihydrazide powder was measured. The results are shown in Table 1.
- Comparative Example 1-1 An aqueous solution in which 3 g of white ascorbic acid fatty acid ester is dissolved in 10 mL of ion-exchanged water is sprayed on 10 g of silica gel particles having a white surface, a specific surface area of 218 m 2 / g, and an average particle diameter of 12 ⁇ m, and then mixed at room temperature for 20 minutes. did.
- the pH when the silica gel particles were dispersed in purified water at 5% by mass was 5.6.
- the obtained spray was heated at 100 ° C. for 5 hours to obtain about 13 g of white powder. And the adsorption capacity of acetone or diacetyl of the adsorbent consisting of this white powder was measured. The results are shown in Table 1.
- Comparative Example 1-2 The adsorption capacity of acetone or diacetyl of activated carbon “Taiko CW350A” (trade name) manufactured by Futamura Chemical Co., Ltd. was measured. The results are shown in Table 1.
- Example 1-5 1 g of the gas adsorbent of Example 1-1 was mixed with 3 g of an acrylic binder to obtain an adsorbent-containing liquid. Next, the adsorbent-containing liquid was used to dip the polyester fabric so that the gas adsorbent adhered to 2 g / m 2, and then dried at 130 ° C. for 2 minutes to obtain a deodorized cloth. The obtained deodorized cloth was cut into 10 cm ⁇ 10 cm, and this was used as a test cloth. Thereafter, the test cloth was put in a 5 L test bag made of a vinyl alcohol polymer film and sealed, and 3 L of air containing 50 ppm of diacetyl was injected. The residual gas concentration after 2 hours at 20 ° C. was measured with a gas detector tube. The results are shown in Table 2.
- Example 1-6 A deodorized cloth was produced in the same manner as in Example 1-5, except that the gas adsorbent of Example 1-2 was used. The deodorization test results are shown in Table 2.
- Example 1-7 A deodorized cloth was produced in the same manner as in Example 1-5, except that the gas adsorbent of Example 1-3 was used. The deodorization test results are shown in Table 2.
- Comparative Example 1-3 A deodorized cloth was produced in the same manner as in Example 1-5, except that the gas adsorbent of Comparative Example 1-1 was used. The deodorization test results are shown in Table 2.
- Comparative Example 1-4 A deodorized cloth was produced in the same manner as in Example 1-5 except that the gas adsorbent of Comparative Example 1-2 was used. The deodorization test results are shown in Table 2.
- Examples 1-5 to 1-7 have a higher ketone gas adsorption effect and superior deodorization performance than Comparative Examples 1-3 and 1-4.
- Example 1-8 20 parts by mass of the gas adsorbent of Example 1-1 and 80 parts by mass of a polypropylene resin “PC630A” (trade name) manufactured by Sun Allomer Co., Ltd. were mixed, and this mixture was melted at a temperature of 190 ° C. using an extruder. It knead
- PC630A polypropylene resin
- Comparative Example 1-5 A plate-like test piece was prepared and a gas adsorption test was conducted in the same manner as in Example 1-8, except that ascorbic acid fatty acid ester powder was used instead of the gas adsorbent of Example 1-1. The gas adsorption rate was 5%.
- the gas adsorbent of the present invention has an effect of adsorbing a ketone gas and is excellent in heat resistance even in a molded product obtained by processing at a high temperature.
- Example 2-1 An aqueous solution in which 1 g of white aminoguanidine hydrochloride is dissolved in 10 mL of ion-exchanged water is sprayed on 10 g of amorphous aluminum silicate particles having a white surface, a specific surface area of 610 m 2 / g, and an average particle size of 6 ⁇ m. Mix for 10 minutes under. The pH when the amorphous aluminum silicate particles were dispersed in purified water at 5% by mass was 6.5. Subsequently, the obtained spray was heated at 120 ° C. for 50 hours to obtain about 11 g of white powder. And the adsorption capacity of methyl ethyl ketone or diacetyl of this adsorbent was measured. The results are shown in Table 3.
- Example 2-2 An aqueous solution obtained by dissolving 3 g of aminoguanidine hydrochloride in 10 mL of ion-exchanged water is sprayed on 8 g of MFI-type zeolite particles having a white surface, a specific surface area of 350 m 2 / g, and an average particle size of 6 ⁇ m, and then mixed at room temperature for 10 minutes. did.
- the pH when the zeolite particles were dispersed in purified water at 5% by mass was 6.6.
- the obtained spray was heated at 140 ° C. for 35 hours to obtain about 11 g of white powder. And the adsorption capacity of methyl ethyl ketone or diacetyl of this adsorbent was measured. The results are shown in Table 3.
- Example 2-3 An aqueous solution obtained by dissolving 3 g of aminoguanidine hydrochloride in 10 mL of ion-exchanged water was sprayed on 8 g of silica gel particles having a white surface, a specific surface area of 89 m 2 / g, and an average particle size of 12 ⁇ m, and then mixed at room temperature for 10 minutes. The pH when silica gel particles were dispersed in purified water at 5% by mass was 6.7. Subsequently, the obtained spray was heated at 130 ° C. for 45 hours to obtain about 11 g of white powder. And the adsorption capacity of methyl ethyl ketone or diacetyl of this adsorbent was measured. The results are shown in Table 3.
- Example 2-4 The adsorption capacity of aminoethyl ketone or diacetyl of aminoguanidine hydrochloride powder was measured. The results are shown in Table 3.
- Comparative Example 2-1 An aqueous solution obtained by dissolving 3 g of ascorbic acid fatty acid ester in 10 mL of ion-exchanged water was sprayed on 8 g of silica gel particles having a white surface, a specific surface area of 189 m 2 / g, and an average particle size of 12 ⁇ m, and then mixed at room temperature for 10 minutes. The pH when silica gel particles were dispersed in purified water at 5% by mass was 6.7. Subsequently, the obtained spray was heat-treated at 140 ° C. for 35 hours to obtain about 11 g of a white powder. And the adsorption capacity of methyl ethyl ketone or diacetyl of this adsorbent was measured. The results are shown in Table 3.
- Examples 2-1 to 2-3 have a large adsorption capacity of ketone-based gas and excellent adsorption performance as compared with Comparative Examples 2-1 and 2-2.
- the ketone gas adsorbent of the present invention has high adsorption performance for ketones such as acetone, methyl ethyl ketone, and diacetyl. Moreover, the color tone of this gas adsorbent is white and is easy to use widely. Furthermore, when the gas adsorbent of the present invention is a powder, it can be applied or kneaded to a product such as paper or fiber, and various deodorized processed products can be provided.
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Abstract
Description
本発明の目的は、ケトン系ガスの化学吸着性能が高く、加工性及び耐熱性に優れるケトン系ガス吸着剤及びガス吸着剤組成物並びにケトン系ガスの化学吸着性能に優れた消臭性加工品を提供することである。
本発明は次の通りである。
1.第一級アミン化合物を含むことを特徴とするケトン系ガス吸着剤。
2.上記第一級アミン化合物が、ヒドラジド化合物、アミノグアニジン化合物及びポリアミンからなる群より選択される少なくとも1種である上記項1に記載のケトン系ガス吸着剤。
3.上記アミノグアニジン化合物が、アミノグアニジン硫酸塩又はアミノグアニジン塩酸塩である上記項2に記載のケトン系ガス吸着剤。
4.上記ケトン系ガス吸着剤は、上記第一級アミン化合物が、無機粉体に担持されてなる複合物である上記項1乃至3のいずれか一項に記載のケトン系ガス吸着剤。
5.上記無機粉体が、ケイ酸塩化合物、4価金属リン酸塩化合物、シリカゲル及びゼオライトから選ばれた少なくとも1種である上記項4に記載のケトン系ガス吸着剤。
6.上記無機粉体のBET比表面積が80m2/g以上である上記項4又は5に記載のケトン系ガス吸着剤。
7.上記第一級アミン化合物と上記無機粉体との質量比が5:95~60:40である上記項4乃至6のいずれか一項に記載のケトン系ガス吸着剤。
8.上記項1乃至7のいずれか一項に記載のケトン系ガス吸着剤と、塩基性ガス吸着剤、硫黄系ガス吸着剤及び有機酸性ガス吸着剤からなる群より選択される少なくとも1種のガス吸着剤とを含有することを特徴とするガス吸着剤組成物。
9.上記項1乃至7のいずれか一項に記載のケトン系ガス吸着剤を含有することを特徴とする消臭性加工品。
本発明のガス吸着剤組成物は、ケトン系ガス及び他のガスの消臭効果を有する。本発明のケトン系ガス吸着剤又はガス吸着剤組成物を用いて、優れた吸着性能を発揮する紙、不織布、繊維、樹脂成形品等の消臭性加工品(消臭製品)や、これらを与える塗料、スプレー材等を提供することができる。
本発明の消臭性加工品は、ケトン系ガスの雰囲気下に用いて、消臭することができるだけでなく、それ自体からケトン系ガスが発せられるのを抑制することができる。
本発明において、吸着の対象であるケトン系ガスは、アセトン、メチルエチルケトン、メチルプロピルケトン、メチルブチルケトン、ジエチルケトン、メチルアミルケトン、ジアセチル、アセトイン、2,3-ペンタンジオン、2,3-ヘキサンジオン等のケトンのガスである。
本発明において、上記ヒドラジド化合物は、単独で用いてよいし、2種以上を組み合わせて使用することができる。
R1-CO-NHNH2 (1)
(式中、R1は、水素原子、アルキル基、又は、置換基を有してもよいアリール基を示す。)
H2NHN-X-NHNH2 (2)
(式中、Xは、-CO-基又は-CO-A-CO-基を示す。Aは、置換基を有してもよいアルキレン基、又は、置換基を有してもよいアリーレン基を示す。)
H2N-(CH2CH2-NH)n-CH2CH2NH2 (3)
(式中、nは0~3の整数である。)
上記一般式(3)で表されるポリアミンは、エチレンジアミン、ジエチレントリアミン、トリエチレンテトラミン、及びテトラエチレンペンタミンである。
また、本発明においては、下記一般式(4)で表されるポリアミンを用いることができる。
H2N-R2-NH2 (4)
(式中、R2は、炭素原子数が3以上の直鎖状又は分岐状の2価の炭化水素基である。)
上記一般式(4)で表されるポリアミンとしては、トリメチレンジアミン、プロピレンジアミン、テトラメチレンジアミン等の低級脂肪族ポリアミンが挙げられる。
本発明において、上記ポリアミンは、単独で用いてよいし、2種以上を組み合わせて用いることができる。高沸点のトリエチレンテトラミン(沸点:278℃)及び/又はテトラエチレンペンタミン(沸点:330℃)を用いることによって、耐熱性を著しく向上させたガス吸収剤を提供することができる。
本発明において、ケトン系ガス吸着剤の好ましい態様は、第一級アミン化合物が無機粉体に担持されてなる複合物である。第一級アミン化合物と無機粉体との質量比は、好ましくは5:95~60:40、より好ましくは5:95~50:50、更に好ましくは5:95~40:60である。
例えば、合成ケイ酸アルミニウムは、下記式(5)で表される。
xNa2O・Al2O3・ySiO2・nH2O (5)
(但し、式中、xは0.1~0.5であり、yは5~15であり、nは0.3~15である。)
また、ケイ酸マグネシウムは下記式(6)で表される。
MgO・zSiO2・mH2O (6)
(但し、式中、zは1以上の正数であり、より好ましくはzが1~20であり、且つ、mが0.1~20の正数であり、更に好ましくはzが1~15であり、且つ、mが0.3~10であり、特に好ましくはzが3~15であり、且つ、mが1~8である。)
合成ケイ酸マグネシウムを製造する場合、マグネシウムの水溶性塩とケイ酸アルカリ金属塩との使用量は、SiO2/MgOのモル比が1以上、好ましくは1~20の範囲、より好ましくは1~15の範囲となるように選択する。
上記無機粉体の形状及び大きさは、特に限定されないが、平均粒径は、好ましくは0.1~20μm、より好ましくは1.0~10μmである。
ここで、無機粉体及び第一級アミン化合物の使用量の割合は、ケトン系ガスの吸着効果の観点から、以下の通りである。第一級アミン化合物の使用量は、無機粉末100質量部に対して、好ましくは5~200質量部、より好ましくは10~100質量部であり、更に好ましくは15~50質量部である。
また、本発明のケトン系ガス吸着剤は、ケトン系ガス以外のガスを吸着する吸着剤と併用することもできる。
また、酸化亜鉛、ケイ酸銅及びケイ酸亜鉛については、比表面積の大きいものが、吸着性能が高く好ましい。
水和酸化ジルコニウムは、オキシ塩化ジルコニウム水溶液等のジルコニウム含有溶液を、水やアルカリ溶液で加水分解することにより作製することができる。尚、水和酸化ジルコニウムは、オキシ水酸化ジルコニウム、水酸化ジルコニウム、含水酸化ジルコニウム、酸化ジルコニウム水和物等、いろいろな名称が使用されるが、これらは、いずれも同じ化合物である。
また、サイズは限定されないが、本発明のガス吸着剤又はガス吸着剤含有組成物がカプセルの中に収容された消臭製品とすることができる。
また、上記粘度調整剤としては、分散液の粘度を調整できるものであれば、特に限定されない。上記粘度調整剤としては、メチルセルロース、カルボキシメチルセルロース、メチルヒドロキシセルロース、メチルヒドロキシプロピルセルロース、ヒドロキシエチルセルロース等のセルロース系増粘剤;アラビアガム、トランガンガム、グアーガム等の天然多糖類;各種ポリアクリルアミド系ポリマー、ポリエチレンオキシド、ポリビニルアルコール等が挙げられる。
また、ガス吸着剤含有加工液におけるガス吸着剤成分の固形分とバインダーとの含有割合は、基材等への接着性及びケトン系ガス等の吸着性の観点から、ガス吸着剤成分の固形分100質量部に対し、バインダーが10~300質量部であることが好ましい。バインダーの含有割合が10~300質量部であれば、繊維、不織布、シート等にガス吸着剤含有加工液を展着させる場合に、十分な固着力が得られ、ガス吸着剤成分が脱落することはない。また、ガス吸着剤成分がバインダーで覆われて吸着性能が低下することもない。
上記ガス吸着剤含有加工液は、原料成分を、例えば、ボールミル、ロールミル、ディスパーやミキサー等の一般的な装置を用いて、混合する方法により、容易に調製することができる。
上記消臭性シートとしては、ガス吸着剤含有組成物に含まれたガス吸着剤成分が、原料シートの1面側から他面側への全体に渡って含まれるものであってよいし、1面側又は他面側の表面層に配されたものであってもよいし、表面層を除く内部に配されたものであってもよい。
上記ガス吸着剤含有加工液を用いずに消臭性シートを製造する場合、原紙又は繊維シートに、本発明のガス吸着剤を構成する無機粉体を付着させた後、第一級アミン化合物の溶液をスプレーする等の方法、抄紙工程を、上記ガス吸着剤含有組成物及びパルプを含有するスラリーを用いて抄紙する等の方法等を適用することができる。後者の場合、所定の割合でガス吸着剤含有組成物とパルプとを含むスラリーを調製した後、カチオン性又はアニオン性の凝集剤を、それぞれ、スラリーに対して5質量%以下で添加して、凝集体を生成させ、得られた凝集体を用いて、公知の方法によって抄紙化し、その後、これを、例えば、100℃~190℃で乾燥させることにより、紙にガス吸着剤成分が担持された消臭シートを得ることができる。
本発明のガス吸着剤又はガス吸着剤含有組成物を含有する消臭性繊維としては、衣類、肌着、ストッキング、靴下、布団、布団カバー、座布団、毛布、じゅうたん、カーテン、ソファ、カバー、シート、カーシート、カーマット及びエアーフィルターをはじめとして、多くの繊維製品に使用できる。繊維製品への添加方法は、繊維製品の表面あるいは裏面にバインダーを用いて展着する方法や繊維樹脂に練り込む方法がある。また、本発明のガス吸着剤又はガス吸着剤含有組成物を含有する消臭性塗料は、建物の内壁、外壁及び鉄道車両の内壁等で使用できる。更に、本発明のガス吸着剤又はガス吸着剤含有組成物を含有する消臭性シートは、医療用包装紙、食品用包装紙、鮮度保持紙、紙製衣料、空気清浄フィルター、壁紙、ティッシュペーパー、トイレットペーパー、不織布、紙、フィルター、フィルム等として使用できる。また、本発明のガス吸着剤又はガス吸着剤含有組成物を含有する消臭性樹脂成形品としては、空気清浄器及び冷蔵庫等の家電製品、ゴミ箱及び水切り等の一般家庭用品、ポータブルトイレ等の各種介護用品、日常品等で使用できる。
(1)メジアン粒径(d50)
吸着剤を、マルバーン社製レーザー回折式粒度分布測定装置「MS2000」(型式名)で測定し、メジアン粒径を体積基準で解析した。尚、粒度分布の含有率%は、この解析方法から全粒子中の体積%であるが、測定粉末の密度が一定であるので、質量%と同じ意味を持つ。
JIS Z8830「気体吸着による粉体(固体)の比表面積測定方法」(2001年改正版)により、BET比表面積を、堀場製作所社製連続流動式表面積計「SA-6200」(型式名)を用いて測定した。
吸着剤粉末0.01gをビニルアルコール系ポリマーフィルム製の5L試験袋に入れ、ここに気化させたアセトン、メチルエチルケトン又はジアセチル(初期濃度300ppm)3Lを注入し、20℃で1時間保存後の試験袋中の残存ガス濃度をガス検知管で測定した。吸着容量は、試料1gあたりの吸着したガス容量で示した。
実施例1-1
白色のアミノグアニジン硫酸塩3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が605m2/g、平均粒径が6μmの非晶質ケイ酸アルミニウム粒子10gに噴霧した後、室温下で20分間混合した。尚、非晶質ケイ酸アルミニウム粒子を5質量%で精製水に分散させた時のpHは6.5であった。次いで、得られた噴霧物を100℃で60時間真空加熱し、白色粉末約13gを得た。そして、この白色粉末からなる吸着剤のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
白色のアジピン酸ジヒドラジド2gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が388m2/g、平均粒径が2μmのZSM型ゼオライト粒子10gに噴霧した後、室温下で20分間混合した。尚、ゼオライト粒子を5質量%で精製水に分散させた時のpHは8.0であった。次いで、得られた噴霧物を120℃で32時間加熱し、白色粉末約12gを得た。そして、この白色粉末からなる吸着剤のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
白色のジエチレントリアミン3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が218m2/g、平均粒径が12μmのシリカゲル粒子10gに噴霧した後、室温下で20分間混合した。尚、シリカゲル粒子を5質量%で精製水に分散させた時のpHは6.8であった。次いで、得られた噴霧物を100℃で55時間加熱し、白色粉末約13gを得た。そして、この白色粉末からなる吸着剤のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
こはく酸ジヒドラジド粉末のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
白色のアスコルビン酸脂肪酸エステル3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が218m2/g、平均粒径が12μmのシリカゲル粒子10gに噴霧した後、室温下で20分間混合した。尚、シリカゲル粒子を5質量%で精製水に分散させた時のpHは5.6であった。次いで、得られた噴霧物を100℃で5時間加熱し、白色粉末約13gを得た。そして、この白色粉末からなる吸着剤のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
フタムラ化学製社製活性炭「太閤CW350A」(商品名)のアセトン又はジアセチルの吸着容量を測定した。その結果を表1に記載した。
実施例1-5
実施例1-1のガス吸着剤1gをアクリルバインダー3gと混合し、吸着剤含有液を得た。次いで、この吸着剤含有液を用いて、ポリエステル生地にガス吸着剤が2g/m2付着するように浸漬加工した後、130℃で2分間乾燥し消臭加工布を得た。得られた消臭加工布を10cm×10cmに切断し、これを試験布とした。その後、ビニルアルコール系ポリマーフィルム製の5L試験袋に、上記試験布を入れて密封し、50ppmのジアセチルを含む空気3Lを注入した。そして、20℃で2時間後の残存ガス濃度をガス検知管で測定した。その結果を表2に記載した。
実施例1-2のガス吸着剤に代えた以外は、実施例1-5と同様にして消臭加工布を作製した。消臭試験結果を表2に記載した。
実施例1-3のガス吸着剤に代えた以外は、実施例1-5と同様にして消臭加工布を作製した。消臭試験結果を表2に記載した。
比較例1-1のガス吸着剤に代えた以外は、実施例1-5と同様にして消臭加工布を作製した。消臭試験結果を表2に記載した。
比較例1-2のガス吸着剤に代えた以外は、実施例1-5と同様にして消臭加工布を作製した。消臭試験結果を表2に記載した。
実施例1-8
実施例1-1のガス吸着剤20質量部、及び、サンアロマー社製ポリプロピレン樹脂「PC630A」(商品名)80質量部を混合し、この混合物を、押出成形機を用いて、温度190℃で溶融混練し、マスターバッチを作製した。その後、このマスターバッチ10質量部と、上記プロピレン樹脂90質量部とを、射出成形機を用いて、成形温度190℃として、板状試験片(100mm×100mm×2mm)を得た。
次に、ビニルアルコール系ポリマーフィルム製の5L試験袋に、上記の板状試験片2枚を入れて密封した。そして、20ppmのジアセチルを含む空気3Lを注入した。これを、20℃で放置し、24時間後の試験袋内のジアセチル濃度を、ガス検知管を用いて測定した。尚、板状試験片を入れずに同じ方法を行って、試験袋内のジアセチル濃度を測定し、この測定値を100%とした場合の板状試験片によるガス吸着率を算出したところ、63%であった。
実施例1-1のガス吸着剤に代えて、アスコルビン酸脂肪酸エステル粉末を用いた以外は、実施例1-8と同様にして、板状試験片の作製、及び、ガス吸着試験を行った。ガス吸着率は、5%であった。
実施例2-1
白色のアミノグアニジン塩酸塩1gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が610m2/g、平均粒径が6μmの非晶質ケイ酸アルミニウム粒子10gに噴霧した後、室温下で10分間混合した。尚、非晶質ケイ酸アルミニウム粒子を5質量%で精製水に分散させた時のpHは6.5であった。次いで、得られた噴霧物を120℃で50時間加熱し、白色粉末約11gを得た。そして、この吸着剤のメチルエチルケトン又はジアセチルの吸着容量を測定した。その結果を表3に記載した。
アミノグアニジン塩酸塩3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が350m2/g、平均粒径が6μmのMFI型ゼオライト粒子8gに噴霧した後、室温下で10分間混合した。尚、ゼオライト粒子を5質量%で精製水に分散させた時のpHは6.6であった。次いで、得られた噴霧物を140℃で35時間加熱し、白色粉末約11gを得た。そして、この吸着剤のメチルエチルケトン又はジアセチルの吸着容量を測定した。その結果を表3に記載した。
アミノグアニジン塩酸塩3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が89m2/g、平均粒径が12μmのシリカゲル粒子8gに噴霧した後、室温下で10分間混合した。尚、シリカゲル粒子を5質量%で精製水に分散させた時のpHは6.7であった。次いで、得られた噴霧物を130℃で45時間加熱し、白色粉末約11gを得た。そして、この吸着剤のメチルエチルケトン又はジアセチルの吸着容量を測定した。その結果を表3に記載した。
アミノグアニジン塩酸塩粉末のメチルエチルケトン又はジアセチルの吸着容量を測定した。その結果を表3に記載した。
アスコルビン酸脂肪酸エステル3gをイオン交換水10mLに溶解した水溶液を、白色であり、比表面積が189m2/g、平均粒径が12μmのシリカゲル粒子8gに噴霧した後、室温下で10分間混合した。尚、シリカゲル粒子を5質量%で精製水に分散させた時のpHは6.7であった。次いで、得られた噴霧物を140℃で35時間加熱処理し、白色粉末約11gを得た。そして、この吸着剤のメチルエチルケトン又はジアセチルの吸着容量を測定した。その結果を表3に記載した。
フタムラ化学製社製活性炭「太閤CW350A」(商品名)のケトン系ガス吸着容量(メチルエチルケトン又はジアセチル)を測定した。その結果を表3に記載した。
Claims (9)
- 第一級アミン化合物を含有することを特徴とするケトン系ガス吸着剤。
- 上記第一級アミン化合物が、ヒドラジド化合物、アミノグアニジン化合物及びポリアミンからなる群より選択される少なくとも1種である請求項1に記載のケトン系ガス吸着剤。
- 上記アミノグアニジン化合物が、アミノグアニジン硫酸塩又はアミノグアニジン塩酸塩である請求項2に記載のケトン系ガス吸着剤。
- 上記ケトン系ガス吸着剤は、上記第一級アミン化合物が、無機粉体に担持されてなる複合物である請求項1乃至3のいずれか一項に記載のケトン系ガス吸着剤。
- 上記無機粉体が、ケイ酸塩化合物、4価金属リン酸塩化合物、シリカゲル及びゼオライトから選ばれた少なくとも1種である請求項4に記載のケトン系ガス吸着剤。
- 上記無機粉体のBET比表面積が80m2/g以上である請求項4又は5に記載のケトン系ガス吸着剤。
- 上記第一級アミン化合物と上記無機粉体との質量比が5:95~60:40である請求項4乃至6のいずれか一項に記載のケトン系ガス吸着剤。
- 請求項1乃至7のいずれか一項に記載のケトン系ガス吸着剤と、塩基性ガス吸着剤、硫黄系ガス吸着剤及び有機酸性ガス吸着剤からなる群より選択される少なくとも1種のガス吸着剤とを含有することを特徴とするガス吸着剤組成物。
- 請求項1乃至7のいずれか一項に記載のケトン系ガス吸着剤を含有することを特徴とする消臭性加工品。
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| US15/580,399 US20180177906A1 (en) | 2015-06-12 | 2016-06-07 | Ketone-based gas adsorbent, gas adsorbent composition, and deodorant processed goods |
| KR1020177035529A KR20180018545A (ko) | 2015-06-12 | 2016-06-07 | 케톤계 가스 흡착제, 가스 흡착제 조성물 및 소취성 가공품 |
| JP2017523644A JPWO2016199756A1 (ja) | 2015-06-12 | 2016-06-07 | ケトン系ガス吸着剤、ガス吸着剤組成物及び消臭性加工品 |
| CN201680032851.1A CN107708855A (zh) | 2015-06-12 | 2016-06-07 | 酮系气体吸附剂、气体吸附剂组合物和除臭性加工品 |
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Cited By (7)
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| JP2019000178A (ja) * | 2017-06-12 | 2019-01-10 | センカ株式会社 | 消臭剤、及び消臭繊維 |
| JP2020075123A (ja) * | 2018-11-06 | 2020-05-21 | 大阪ガスケミカル株式会社 | 臭気物質吸着剤 |
| WO2020121754A1 (ja) | 2018-12-13 | 2020-06-18 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物 |
| JP2021527108A (ja) * | 2018-06-12 | 2021-10-11 | ケトファイブ (9211−3133 ケベック インコーポレイテッド) | 新規のケトン体生成化合物、組成物、方法およびその使用 |
| JP2021186006A (ja) * | 2020-05-26 | 2021-12-13 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物、消臭製品及びその製造方法 |
| WO2023145944A1 (ja) * | 2022-01-31 | 2023-08-03 | 東亞合成株式会社 | 樹脂組成物の製造方法 |
| JP7691926B2 (ja) | 2019-06-27 | 2025-06-12 | 東亞合成株式会社 | 消臭剤含有加工液及びそれを用いた消臭製品の製造方法 |
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| EP3599017A1 (fr) * | 2018-07-27 | 2020-01-29 | Seb S.A. | Matériau sol-gel adsorbant les aldéhydes et les cétones, et son procédé de préparation |
| KR102273389B1 (ko) * | 2019-12-05 | 2021-07-06 | 주식회사 신성이엔알 | 폐광산의 산성 배수슬러지를 이용한 황화수소 흡착제 |
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| JP2021527108A (ja) * | 2018-06-12 | 2021-10-11 | ケトファイブ (9211−3133 ケベック インコーポレイテッド) | 新規のケトン体生成化合物、組成物、方法およびその使用 |
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| JP7509697B2 (ja) | 2018-06-12 | 2024-07-02 | 9500-0535 ケベック インコーポレイテッド | 新規のケトン体生成化合物、組成物、方法およびその使用 |
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| JPWO2020121754A1 (ja) * | 2018-12-13 | 2021-10-28 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物 |
| KR20210103466A (ko) | 2018-12-13 | 2021-08-23 | 도아고세이가부시키가이샤 | 알데히드계 가스 또는 케톤계 가스에 적합한 소취제 조성물 |
| JP7472797B2 (ja) | 2018-12-13 | 2024-04-23 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物 |
| WO2020121754A1 (ja) | 2018-12-13 | 2020-06-18 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物 |
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| KR102732896B1 (ko) | 2018-12-13 | 2024-11-25 | 도아고세이가부시키가이샤 | 알데히드계 가스 또는 케톤계 가스에 적합한 소취제 조성물 |
| JP7691926B2 (ja) | 2019-06-27 | 2025-06-12 | 東亞合成株式会社 | 消臭剤含有加工液及びそれを用いた消臭製品の製造方法 |
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| JP7543706B2 (ja) | 2020-05-26 | 2024-09-03 | 東亞合成株式会社 | アルデヒド系ガス又はケトン系ガスに好適な消臭剤組成物、消臭製品及びその製造方法 |
| WO2023145944A1 (ja) * | 2022-01-31 | 2023-08-03 | 東亞合成株式会社 | 樹脂組成物の製造方法 |
Also Published As
| Publication number | Publication date |
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| US20180177906A1 (en) | 2018-06-28 |
| EP3308853A4 (en) | 2019-01-23 |
| KR20180018545A (ko) | 2018-02-21 |
| CN107708855A (zh) | 2018-02-16 |
| EP3308853A1 (en) | 2018-04-18 |
| JPWO2016199756A1 (ja) | 2018-04-05 |
| TW201709966A (zh) | 2017-03-16 |
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