WO2006070816A1 - 微小気泡発生用界面活性剤 - Google Patents
微小気泡発生用界面活性剤 Download PDFInfo
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- WO2006070816A1 WO2006070816A1 PCT/JP2005/023930 JP2005023930W WO2006070816A1 WO 2006070816 A1 WO2006070816 A1 WO 2006070816A1 JP 2005023930 W JP2005023930 W JP 2005023930W WO 2006070816 A1 WO2006070816 A1 WO 2006070816A1
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- Prior art keywords
- surfactant
- parts
- cleaning
- generating microbubbles
- acid
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Definitions
- the present invention relates to a surfactant for generating microbubbles and a cleaning agent containing the same.
- microbubbles in water such as microbubbles with a diameter of micrometer order or nanobubbles with a nanometer order have been extensively studied, and these microbubbles (bubbles with a diameter of 1 mm or less are indicated because of their usefulness. The same applies to the following.)
- Various application uses utilizing this, for example, cleaning of machine parts, etc. have been proposed.
- Non-patent Document 1 a method of adding a surfactant in advance to water or the like has been proposed.
- Non-Patent Document 1 Journal of the Japan Society of Mechanical Engineers (Part B), 69 ⁇ , No. 686, p. 16-23 (2003, published by the Japan Society of Mechanical Engineers)
- Non-Patent Document 1 has a problem in that the bubbles are miniaturized and the generated bubbles are unstable, and the effect is difficult to maintain for a long time.
- O Bubbles bubbles larger than the microbubbles defined above, for example, bubbles with a diameter exceeding lmm. The same shall apply hereinafter) occur, which makes it difficult to handle the device.
- an object of the present invention is to provide a surfactant that can easily obtain microbubbles and has a high effect of stabilizing the obtained microbubbles for a long time. Furthermore, when surfactants are used in conventional microbubble generators, only the desired microbubbles can be obtained without causing problems such as violent foaming and overflow of the device force, making it difficult to handle. Is to provide a surfactant capable of
- the present invention comprises an active hydrogen atom-containing compound (a) (poly) oxyalkylene adduct (A) represented by the following general formula (1), wherein 0.02 wt.
- a surfactant for generating microbubbles characterized in that the foaming force measured by a Ross' Miles test at 20 ° C is 50 mm or less; a detergent containing the surfactant for generating microbubbles;
- a method of cleaning an object to be cleaned including a step of generating microbubbles using the cleaning agent; and a method of generating microbubbles in water using the surfactant for generating microbubbles or the cleaning agent.
- Z is a p-valent active hydrogen-containing residue, and the compound power is also excluded from active hydrogen;
- A is an alkylene group having 1 to 8 carbon atoms;
- n is an integer from 1 to 400;
- p is an integer from 1 to 100 It is.
- the surfactant for generating microbubbles of the present invention comprises the above-mentioned (poly) oxyalkylene adduct (A), and is caused by a Loss-Miles test (20 ° C) of a 0.02% by weight aqueous solution of (A). Foam strength is 50mm or less.
- the "foaming power by the Ross Miles test (20 ° C)" used in the present invention is JIS K3362
- foam stability refers to the loss-miles test after the test. This refers to the height of the foam 5 minutes after all test solution has flowed out. The stability of the foam can also be determined according to JI S K3362 (1998).
- the foaming power and foam stability can be determined as follows.
- test solution 0.02% by weight aqueous solution of surfactant
- test solution Take 200 ml of test solution into a pipette, open the top end of the foaming force measuring device for Loss Miles test so that the test solution will flow out in about 30 seconds, and the droplets will flow into the inner cylinder surface. Let it flow down as if falling to the center.
- the foaming power is preferably 40 mm or less, more preferably 30 mm or less, particularly preferably 20 mm or less, and most preferably 10 mm or less.
- the lower limit of the foaming power is Omm.
- the stability of the foam is preferably 35 mm or less, more preferably 15 mm or less, particularly preferably 10 mm or less, and most preferably 5 mm or less.
- the lower limit of the stability of the foam is Omm.
- the foaming power is preferably Omm or [foam stability (mm ) Z Foaming power (mm)]
- the ratio of foam stability to foaming power is preferably 0 to 0.70, particularly preferably ⁇ . ⁇ 0.5, most preferably ⁇ . ⁇ 0.2.
- Z is a residue obtained by removing the active hydrogen atom from the p-valent active hydrogen atom-containing compound (a).
- active hydrogen atom refers to an active hydrogen atom bonded to a nonmetallic heteroatom other than carbon, and preferably an active hydrogen atom bonded to an oxygen atom, a nitrogen atom, a phosphorus atom, or a sulfur atom.
- the “p-valent active hydrogen atom-containing compound (a)” means a compound having p active hydrogen atoms bonded to a nonmetallic heteroatom other than carbon in the molecule! Uh.
- a p-valent active hydrogen atom-containing compound (a) includes a hydroxyl group-containing compound (al), an amino group-containing compound (a2), a carboxyl group-containing compound (a3), a mercapto group-containing compound (a4 ), Phosphoric acid compounds (a5), compounds having two or more active hydrogen atom-containing functional groups in the molecule (a6); and mixtures of two or more thereof.
- the hydroxyl group-containing compound (al) is a monovalent alcohols (al l) below, 2-8 valent polyhydric alcohol (a 12), 1 Ataifu Nord (AL3), Okafu Nord ( AL4) and other polyhydric alcohol (a 15), and the like.
- (all) is methanol, ethanol, n-propanol, isopropanol, n-butanol, sec butanol, 1 pentanol, aryl alcohol, synthetic or natural higher alcohol [for example, having 14 to 15 carbon atoms Examples thereof include monohydric alcohols having 1 to 18 carbon atoms, preferably 1 to 8 carbon atoms, such as synthetic alcohols (commercially available products such as “DOBANOL 45” manufactured by Mitsubishi Chemical Co., Ltd.).
- (al2) includes ethylene glycol, 1,2 propylene glycol, 1,3 propylene glycol, 1,3 butylene glycol, 1,4 butanediol, 1,6 hexanediol, 3-methylpentanediol, Carbon number such as diethylene glycol, neopentyl glycol, 1,4 bis (hydroxymethyl) cyclohexane, 1,4 bis (hydroxyethyl) benzen and 2,2 bis (4,4, -hydroxycyclohexyl) propane 2-18 dihydric alcohols; trivalent alcohols having 3-18 carbon atoms such as glycerin and trimethylolpropane; and pentaerythritol, diglycerin, triglycerin, a- methylglycoside, sorbitol, xylit, mannitol, dipenta 4- to 8-valent amines such as erythritol, glucose, fructose and sucrose Lecol;
- (al3) includes phenol and an alkylphenol having an alkyl group having 1 to 6 carbon atoms. And monovalent phenols such as those (eg, talesol and p-ethylphenol).
- (al4) includes polyphenols such as pyrogallol, catechol, hydroquinone, bisphenol (eg, bisphenol 8, bisphenol F, bisphenol S, etc.) and trisphenol (eg, trisphenol PA). Can be mentioned.
- Examples of (al5) include cellulosic compounds (for example, methylcellulose, ethylcellulose, hydroxyethinoresenorelose, ethenorehydroxyethinoresenorelose, canoleoxymethylenolecellulose, hydroxypropylcellulose, and the like) Saponified products, etc.), gelatin, starch, dextrin, novolac resin (eg, phenol novolac, cresol novolac, etc.), polyphenol, polybutadiene polyol, castor oil-based polyol, and hydroxyalkyl (meth) acrylate. And other polyhydric alcohols such as polyfunctional (2-: LOO) polyols such as poly (bull alcohol).
- cellulosic compounds for example, methylcellulose, ethylcellulose, hydroxyethinoresenorelose, ethenorehydroxyethinoresenorelose, canoleoxymethylenolecellulose, hydroxypropylcellulose, and the like
- amino group-containing compound (a2) examples include ammonia, monoamines (a21), polyamines (a2 2), amino alcohols (a23) and other amino compounds (a24).
- (a21) examples include alkyl monoamines having 1 to 20 carbon atoms (such as butyramine), monoamines such as aromatic monoamines having 6 to 18 carbon atoms (such as ayurin), and the like.
- (a22) includes aliphatic polyamines such as ethylenediamine, trimethylenediamine, hexamethylenediamine and diethylenetriamine; heterocyclic polyamines such as piperazine and N-aminoethylpiperazine Alicyclic polyamines such as dicyclohexylmethanediamine and isophorone diamine; And aromatic polyamines such as polyphenylenemethane polyamines; polyamide polyamines obtained by condensation of dicarboxylic acids with excess polyamines; and polyether polyamines.
- aliphatic polyamines such as ethylenediamine, trimethylenediamine, hexamethylenediamine and diethylenetriamine
- heterocyclic polyamines such as piperazine and N-aminoethylpiperazine Alicyclic polyamines such as dicyclohexylmethanediamine and isophorone diamine
- aromatic polyamines such as polyphenylenemethane polyamines
- (a23) includes amino alcohols such as monoethanolamine, diethanolamine, triethanolamine, and triisopropanolamine (in this case, active hydrogens of both alcohol and ammine are p-valent). It corresponds to a number.
- amino alcohols such as monoethanolamine, diethanolamine, triethanolamine, and triisopropanolamine (in this case, active hydrogens of both alcohol and ammine are p-valent). It corresponds to a number.
- Examples of (a24) include hydrazines (such as hydrazine and monoalkylhydrazine), dihydrazide. Succinic acid dihydrazide, adipic acid dihydrazide, isophthalic acid dihydrazide, and terephthalic acid dihydrazide, etc., guanidines (such as butyl dandine and 1-cyanguanazine), and dicyandiamide.
- hydrazines such as hydrazine and monoalkylhydrazine
- dihydrazide Succinic acid dihydrazide, adipic acid dihydrazide, isophthalic acid dihydrazide, and terephthalic acid dihydrazide, etc.
- guanidines such as butyl dandine and 1-cyanguanazine
- dicyandiamide such as butyl dandine and 1-cyanguanazine
- Examples of the carboxyl group-containing compound (a3) include aliphatic monocarboxylic acids (a31) such as acetic acid and propionic acid; aromatic monocarboxylic acids (a32) such as benzoic acid; succinic acid and Aliphatic polycarboxylic acids such as adipic acid (a33); Aromatic polycarboxylic acids such as phthalic acid, terephthalic acid and trimellitic acid (a34); Polyacrylic acid such as (co) polymers of acrylic acid Polymer (number of functional groups 2 to: LOO) (a35) and the like.
- aliphatic monocarboxylic acids a31
- aromatic monocarboxylic acids a32
- succinic acid and Aliphatic polycarboxylic acids such as adipic acid (a33)
- Aromatic polycarboxylic acids such as phthalic acid, terephthalic acid and trimellitic acid (a34)
- Polyacrylic acid such as (co) polymers of acrylic acid Polymer (
- Examples of the mercapto group-containing compound (a4) include divalent to octavalent polythiols. Specific examples include ethylene dithionone, propylene dithionole, 1,3 butylene dithionole, 1,4 butanedithiol, 1,6 hexanedithiol, and 3-methylpentanedithiol.
- Examples of the phosphoric acid compound (a5) include phosphoric acid and phosphonic acid.
- the compound (a6) having two or more active hydrogen atom-containing functional groups in the molecule is further at least two selected from the group consisting of a hydroxyl group, an amino group, a carboxyl group, a mercapto group, and a phosphate group.
- the compound having the above functional group include, for example, the above hydroxyl group-containing compound (al), amino group-containing compound (a2), carboxyl group-containing compound (a3), mercapto group-containing compound (a4), and phosphoric acid compound.
- Examples include those in which a part of the active hydrogen atom-containing functional group in (a5) is further substituted with a different active hydrogen atom-containing functional group
- active hydrogen atom-containing compounds (a) from the viewpoint of bubble stability, preferred are a hydroxyl group-containing compound (al), an amino group-containing compound (a2), and a carboxyl group-containing compound (a 3).
- a hydroxyl group-containing compound (al) an amino group-containing compound (a2)
- a carboxyl group-containing compound (a 3) a hydroxyl group-containing compound (al)
- a l2 2 to 8 valent polyhydric alcohol
- monoamines of the (a2) (a21) And polyamines (a22) and alkanolamines (a23) particularly preferred! / Are (al 1) and (al 2), particularly preferred (al 2).
- p in the formula (1) represents an integer of 1 to: LOO.
- the value of p is active hydrogen This corresponds to the number of active hydrogen atoms contained in the atom-containing compound (a).
- the value of p is not particularly limited, but is preferably 1 to 8, more preferably Is 2-8.
- a in the general formula (1) is an alkylene group having 1 to 8 carbon atoms, for example, ethylene group, 1,2-propylene group, 1,2 butylene group, 2,3 butylene group, 1,4-butylene.
- Group and 1 phenyl 1,2-ethylene group are preferable from the viewpoint of bubble stability. is there.
- AO may be a random polymerization or a block polymerization in the case of a copolymer which may be two or more kinds of copolymers.
- n is an integer of 1 to 400, and preferably 1 to 175, more preferably 1 to 60, particularly preferably 1 to 30, and most preferably from the viewpoint of controlling the bubble diameter and suppressing foaming during use. Also preferably 1-10.
- the solubility parameter of the (poly) oxyalkylene adduct (A) (hereinafter abbreviated as SP value) is preferably 9 to 16, particularly preferably 9 to 14. When the SP value is within this range, microbubbles are easily obtained.
- the SP value of (a) is preferably 11 to 30, particularly preferably 12 to 20. When the value is within the range of the SP value force of (a), foaming during use is less and preferable.
- the SP value here is expressed by the square root of the ratio between the cohesive energy density and the molecular volume as shown below.
- ⁇ represents the cohesive energy density.
- V represents molecular volume. SP values are calculated by Robert F. Fedors et al., For example, Polymer Engineering and Science 14th pp. Pp. 147-154 (1974) It is written.
- the method for producing the (poly) oxyalkylene adduct (A) is not particularly limited.
- the etherification reaction using a catalyst for example, sulfuric acid
- the etherification reaction using an organic halide for example, , Williamson reaction, etc.
- addition reactions of alkylene oxide (b), etc. available.
- an active hydrogen-containing compound (a) for example, sodium hydroxide and potassium hydroxide
- a catalyst for example, sodium hydroxide and potassium hydroxide
- the reaction temperature for example, 80 to 150 ° C
- pressure for example, 0.1 to 0.3 MPa
- alkylene oxide (b) examples include alkylene oxides having 2 to 8 carbon atoms, such as ethylene oxide (hereinafter abbreviated as EO), 1,2-propylene oxide (hereinafter abbreviated as PO), 1, 2— or 2, 3-butylene oxide, tetrahydrofuran, styrene oxide and the like.
- EO, PO, tetrahydrofuran and styrene oxide are preferable, and EO and PO are particularly preferable.
- (B) may be used in two or more types. When two or more types are used, the additional format may be block or random.
- the surfactant for generating microbubbles of the present invention usually comprises only (A).
- the shape of the surfactant for generating microbubbles of the present invention is liquid or solid.
- solid it has any known shape such as powder, granule, block or plate.
- the cleaning agent containing the surfactant for generating microbubbles may be a cleaning agent composed of only the above surfactant! It may be a liquid and may further contain other components.
- an aqueous liquid in the case of an aqueous liquid, it may be in the form of an aqueous solution diluted with water, or in the form of an emulsion or suspension emulsified and dispersed in water.
- concentration of the surfactant of the present invention in the form of an aqueous solution, emulsion or suspension is usually 10% by weight or more, preferably 20 to 99.9% by weight. It is.
- water-soluble organic solvents include sulfoxide solvents (dimethylsulfoxide, etc.); sulfone solvents ⁇ dimethylsulfone, jetylsulfone, bis (2-hydroxyethyl) sulfone, etc. ⁇ ; amide solvents ⁇ N, N Dimethylformamide, N-methylformamide, N, N dimethylacetamide, etc. ⁇ ; Lactam solvents ⁇ N-methyl 2-pyrrolidone, N-ethyl 2-pyrrolidone, N-hydroxymethyl 2-pyrrolidone, etc. ⁇ ; Lactone solvents ⁇ ⁇ -propiolataton, ⁇ -petit-mouth rataton, and ⁇ -valerolataton, etc .; alcoholic solvents ⁇ eg, those exemplified above ⁇ ; and glycolic solvents ⁇ eg, those exemplified above ⁇ .
- the proportion of these water-soluble organic solvents is preferably 20 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of the stability of bubbles. Further, it is preferably 30% by weight or less of the total weight of water and the water-soluble organic solvent.
- the cleaning agent of the present invention may contain other components as long as the effects of the present invention are not impaired.
- Examples of other components include other surfactants, antifoaming agents, antioxidants, chelating agents, and antifungal agents.
- surfactants examples include ionic surfactants such as anionic surfactants, cationic surfactants and amphoteric surfactants, and the nonionic field other than ( ⁇ ) of the present invention.
- ionic surfactants such as anionic surfactants, cationic surfactants and amphoteric surfactants, and the nonionic field other than ( ⁇ ) of the present invention.
- a surface active agent etc. are mentioned. These may be used alone or as a mixture of two or more.
- Examples of the ionic surfactant include carboxylates [saturated or unsaturated fatty acid salts having 8 to 22 carbon atoms]; salts of carboxymethylates [aliphatic alcohols having 8 to 16 carbon atoms or Is a salt of carboxymethylated product of ⁇ (1 to 10 mol) adduct thereof]; sulfate ester salt [aliphatic alcohol having 8 to 18 carbon atoms or sulfate ester ester of ⁇ ⁇ (1 to 10 mol) adduct thereof]; Sulfated oil [Saturated salt obtained by neutralizing natural unsaturated fat or unsaturated wax as it is] Sulfuric acid fatty acid ester [Salt obtained by sulfating and neutralizing lower alcohol ester of unsaturated fatty acid]; Sulfuric acid salt [Salts of 12-18 carbon atoms neutralized with sulfuric acid]; Sulphonate [Alkylbenzene sulphonate, Alkyl naphthalene
- the above salts include alkali metal (sodium, potassium, etc.), alkaline earth metal (force, magnesium, etc.), ammonium salt, alkylamine (C1-20) salt and alkanolamine ( And salts having 2 to 12 carbon atoms such as mono-, di- and triethanolamine).
- Examples of the cationic surfactant include a quaternary ammonium salt type cationic surfactant and an amine salt type cationic surfactant.
- the amine salt type includes salts of higher aliphatic amines (such as inorganic acids (hydrochloric acid, sulfuric acid, phosphoric acid, etc.) of amines having 12 to 60 carbon atoms (such as laurylamine and stearylamine) or organic acids (acetic acid, lauric acid). , Oleic acid and adipic acid) salts; and higher fatty acid salts of lower amines (such as salts of higher fatty acids (such as stearic acid and oleic acid) of 1 to 11 carbon atoms).
- higher aliphatic amines such as inorganic acids (hydrochloric acid, sulfuric acid, phosphoric acid, etc.) of amines having 12 to 60 carbon atoms (such as laurylamine and stearylamine) or organic acids (acetic acid, lauric acid).
- Oleic acid and adipic acid higher fatty acid salts of lower amines
- higher fatty acid salts of lower amines
- amphoteric surfactant amino acid type amphoteric surfactant [higher alkylamine (carbon number 12 to 18) such as sodium propionate]; betaine type amphoteric surfactant [alkyl (carbon number 12 to 18) ) Dimethylbetaine, alkyl (carbon number 12-18) dihydroxyethyl tie , Palm oil fatty acid amidopropyl betaine, etc.]; sulfate ester type amphoteric surfactants [sulfur ester sodium salts of higher alkyl (8 to 18 carbon atoms) amine, hydroxyethyl imidazoline sulfate sodium salt, etc.]; sulfone Acid salt type amphoteric surfactant (pentadecyl sulfotaurine, imidazoline sulfonic acid, etc.); Phosphate salt type amphoteric surfactant [glycerin higher fatty acid (carbon number 8-22) ester amine salt phosphate este
- amphoteric surfactants described in columns 9 to 10 of US Pat. No. 4,331,447 can be mentioned.
- Non-ionic surfactants other than (A) include non-ionic surfactants represented by the general formula (1) whose foaming power by the Ross Miles test exceeds 50 mm.
- non-ionic surfactants represented by the general formula (1) whose foaming power by the Ross Miles test exceeds 50 mm.
- polyethylene glycol monoalkyl (carbon number 10-18) ether ⁇ e.g., polyethylene glycolenole monolaurinole ether, polyethylene glycolenole monomyristinole etherenole, polyethylene glycolenole monocetinoleenotenole, polyethylene glycolenole Monosetearyl ether, polyethylene glycol monooleyl ether, etc. ⁇ , polyethylene glycol monoalkyl (carbon number 8-18) phenol ether ⁇ eg, polyethylene glycol monooctyl ether, polyethylene glycol mono-vinyl ether, polyethylene Nglycol mono-p-isooctylsulfur ether (
- the proportion in the case of containing these surfactants is preferably 10 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention.
- Antioxidants include, for example, phenolic antioxidants (2,6 di-tert-butylphenol, 2t-butyl-4-methoxyphenol, 2,4dimethyl-6tbutylphenol, etc.); Agents (monoalkyl diphenylamines such as monooctyldiphenylamine and monovinyldiphenylamine, 4, 4 'dibutyldiphenyl) Dialkyldiphenylamines such as nylamine and 4,4'-dipentyldiphenylamine; polyalkyldiphenylamines such as tetrabutyldiphenylamine and tetrahexyldiphenylamine; and ⁇ -naphthylamine and phenol ⁇ —Naphthylamines such as naphthylamine); sulfur compounds ⁇ phenothiazine, pentaerythritol-tetrakis (3-laurylthiopropionate)
- the proportion in the case of containing these antioxidants is preferably 5 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability.
- Examples of the chelating agent include aminopolycarboxylic acid ⁇ (ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediamine triacetic acid (HEDTA), dihydroxyethylenedylenediaminetetraacetic acid (DHEDDA), Nitrous acid acetic acid (NTA) and hydroxyethyl imino acetic acid (HIDA) ⁇ and their ammonium or organic alkali salts; phosphonic acid (methyldiphosphonic acid, aminotrismethylenephosphonic acid, Tylidene diphosphonic acid, ethenoreaminobismethylene phosphonic acid and ethylene diamine bismethylene phosphonic acid) and their inorganic alkali salts (lithium, sodium and potassium salts, etc.), ammonium salts and organic alkalis Salts (such as triethanolamine salts such as triethanolamine);
- EDTA ethylenediaminetetraacetic acid
- HEDTA hydroxyethylethylenediamine triace
- the proportion in the case of containing these chelating agents is preferably 10 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability.
- fungicide examples include, for example, benzotriazole, tolyltriazole, benzotriazole derivatives having a hydrocarbon group having 2 to 10 carbon atoms, benzimidazole, and imidazoles having a carbon number 2 to 20 hydrocarbon group.
- nitrogen-containing organic fungicides such as thiazole derivatives having 2 to 20 carbon atoms and 2-mercaptobenzothiothiazole; dodecyl succinic acid half ester, octadece-lucuccinic anhydride and dodece-lucuccinamide, etc.
- Alkyl or alkyl-succinic acid derivatives of And polyhydric alcohol partial esters such as reate, glycerol monooleate and pentaerythritol monooleate.
- the proportion in the case of containing these antifungal agents is preferably 10 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability.
- Examples of the pH adjuster include organic acids such as citrate, oxalate, darconate, lactic acid, tartaric acid, maleic acid, acetic acid and formic acid; mineral acids such as hydrochloric acid, sulfuric acid and phosphoric acid; Inorganic alkalis such as thium, sodium hydroxide, potassium hydroxide and ammonia; and organic alkalis such as alkanolamines (such as triethanolamine).
- organic acids such as citrate, oxalate, darconate, lactic acid, tartaric acid, maleic acid, acetic acid and formic acid
- mineral acids such as hydrochloric acid, sulfuric acid and phosphoric acid
- Inorganic alkalis such as thium, sodium hydroxide, potassium hydroxide and ammonia
- organic alkalis such as alkanolamines (such as triethanolamine).
- the proportion in the case of containing these pH adjusters is preferably 10 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention.
- buffer for example, organic acids, inorganic acids and salts thereof having a pH buffering action can be used.
- Examples of the organic acid include citrate, glycolic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid, levulinic acid, butyric acid, valeric acid, oxalic acid, maleic acid and mandelic acid.
- Examples of the inorganic acid include phosphoric acid, boric acid, sulfuric acid, and nitric acid.
- Examples of salts of these acids include salts such as inorganic alkalis and organic alkalis exemplified above.
- the proportion in the case of containing these buffers is preferably 10 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability.
- Antifoaming agents include alcohols (for example, methanol, ethanol, 1 propanol, 2 propanol, lauryl alcohol and stearyl alcohol) and silicone compounds (for example, dimethyl silicone, fluorosilicone and polyether silicone). Corn, etc.).
- alcohols for example, methanol, ethanol, 1 propanol, 2 propanol, lauryl alcohol and stearyl alcohol
- silicone compounds for example, dimethyl silicone, fluorosilicone and polyether silicone. Corn, etc.
- the proportion of the antifoaming agent is preferably 1 part by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability.
- the total of the other components in the case of containing the above other components is 30 parts by weight or less with respect to 100 parts by weight of the surfactant of the present invention from the viewpoint of bubble stability. Is more preferably 20 parts by weight or less.
- the surfactant of the present invention and other components may be separately added to the microbubble generator described later.
- the cleaning agent containing the surfactant for generating microbubbles of the present invention can be used for cleaning an object to be cleaned with microbubbles generated in water.
- the method for cleaning an object to be cleaned according to the present invention is a method for cleaning an object to be cleaned including a step of generating microbubbles using the cleaning agent of the present invention.
- the cleaning agent of the present invention is added to water that generates microbubbles, and after stirring and dissolving as necessary, a known microbubble generator (for example, , Slit type, porous plate type, array perforated plate type, ultra-thin-dollar type, membrane type, pressure dissolution type, bench lily type, etc.) can be used.
- a known microbubble generator for example, , Slit type, porous plate type, array perforated plate type, ultra-thin-dollar type, membrane type, pressure dissolution type, bench lily type, etc.
- water that can be used include tap water, industrial water, groundwater, ion exchange water, ultrapure water, seawater, and lake water.
- the gas forming the microbubbles is not particularly limited and any gas can be used.
- any gas can be used.
- air oxygen, nitrogen, carbon dioxide, hydrogen, ozone, helium, argon, and two of these Among them, air is preferred from the viewpoint of being inexpensive and easily available.
- some of these gases may be dissolved in water.
- the object to be cleaned is not particularly limited as long as it is dirty.
- Dirt includes organic substances such as oil (machine oil, oil and fat), fingerprints, sebum, sweat, oil, organic particles, inorganic particles (glass powder, gunshot, ceramic powder, metal powder, etc.), And dirt that adheres to the daily living environment such as dust, dust, pollen, mud, ketchup, sauce, coffee, lipstick and chili oil.
- oil machine oil, oil and fat
- fingerprints sebum
- sweat oil
- organic particles organic particles
- inorganic particles glass powder, gunshot, ceramic powder, metal powder, etc.
- dirt that adheres to the daily living environment such as dust, dust, pollen, mud, ketchup, sauce, coffee, lipstick and chili oil.
- Preferable items to be cleaned include mechanical parts, electrical / electronic parts, household electrical appliances or parts thereof, clothing, tableware, cooking utensils, food, and human bodies.
- machine parts include steel plates, wire drawing, metal (iron, copper, aluminum, etc.) parts, ceramic parts, machined parts (automobile parts, bearings, watches), metal machined parts ( (Screws, bolts, shafts, rings, etc.) plated parts, piping, heat exchangers, etc.
- Examples of electrical / electronic components include semiconductor elements, silicon wafers, color filters, electrical Subdevice substrate (LCD panel, plasma, organic EL, etc. flat panel display
- Optical 'magnetic disk CCD
- optical lens printed wiring board
- optical communication cable LE
- Household electrical products and parts thereof include filters such as vacuum cleaners, dryers, washing machines and air conditioners, lighting fixtures, dishwashers, water heaters, exhaust fans, range hoods, bathtubs, toilets, and beauty equipment Is mentioned.
- Examples of the clothing include underwear, outerwear, socks and gloves.
- Examples of clothing materials include cotton, nylon, polyester, vinylon and blends thereof, and natural leather and artificial leather.
- Examples of the tableware include household or commercial dishes, cups, bowls, teacups, spoons and forks.
- Cooking utensils include pots, pans, rice cookers, electric pots, coffee makers, juicers, mixers, food processors and hot plates.
- Examples of foods include fruits (apples, tangerines, pears, etc.), vegetables (potatoes, sweet potatoes, carrots, etc.) and cereals (rice, wheat, etc.).
- dirt such as soil adhering to fruits and vegetables, or adhering agricultural chemicals or fruit protection agents (calcium carbonate, etc.) can be removed.
- Examples of cleaning methods for mechanical parts, electrical and electronic parts, household electrical appliances or parts thereof, clothing, tableware, cooking utensils, and foods are large enough to allow the object to be cleaned to be immersed sufficiently.
- the bubble generator exemplified above is attached to the lower part of the tank, and the object to be cleaned is immersed in the cleaning tank while generating microbubbles, and is immersed in the tank for a certain time (for example, 10 to 10). : L, 000 seconds) and then pulling it up.
- a method for washing clothes a method of stirring or rotating as necessary while generating microbubbles may be used in combination.
- examples of the human body include all parts of the human body such as hands, faces and feet.
- the bubble generator exemplified above is attached to the bottom of a washing tank large enough to immerse the hands and feet, and the hands are fixed in the washing tank while generating microbubbles. After dipping for a time (for example, 10 to 300 seconds) I can get lost.
- the addition amount (parts by weight) of the cleaning agent of the present invention relative to water is usually 0.001 in terms of the surfactant of the present invention with respect to 100 parts by weight of water that generates microbubbles. -5 parts by weight, preferably from 0.0001 to 3 parts by weight, particularly preferably from 0.01 to 1 part by weight, from the viewpoint of easily obtaining microbubbles and the viewpoint of bubble stability.
- the temperature (° C) of water when microbubbles are generated using the cleaning agent of the present invention is not particularly limited, but is usually 5 to 90 ° C, preferably 10 to 70 ° C, particularly preferably. Is 15-60 ° C.
- the average bubble diameter of the microbubbles that can be generated by the surfactant or detergent for generating microbubbles of the present invention is usually 1 mm or less, preferably 100 m or less, more preferably 80 ⁇ m or less, particularly Preferably it is 50 ⁇ m or less. If it is 100 ⁇ m or less, it is preferable from the viewpoint of detergency.
- the average bubble diameter refers to the area average bubble diameter and can be determined by the following method.
- (Average bubble diameter) ⁇ nx V ⁇ nx 2
- ⁇ represents the bubble diameter
- the center value of each bubble diameter range for example, 70 ⁇ m in the case of 60 to 80 ⁇ m in FIG. 1, is used as the value of x in the calculation.
- N represents the number of bubbles having the bubble diameter x.
- the cleaning method of the object to be cleaned of the present invention includes a cleaning method in which other cleaning methods are combined with a cleaning process for generating microbubbles.
- cleaning methods include ultrasonic cleaning, shower cleaning, spray cleaning, brush cleaning, immersion, immersion rocking, single wafer cleaning, and combinations of these, but from the standpoint of cleaning power Preferred is a combination with an ultrasonic cleaning method.
- cleaning agents used in other cleaning methods include aqueous cleaning agents, non-aqueous cleaning agents, and semi-aqueous cleaning agents.
- water-based cleaning agents examples include alkaline cleaning agents (for example, cleaning agents composed of alkali builders, surfactants and antifungal agents, etc.); neutral cleaning agents (for example, surfactants and antifungal agents, etc.) Cleaning agents, etc.); and acidic cleaning agents ⁇ for example, inorganic acids (sulfuric acid, hydrochloric acid, phosphoric acid, etc.), organic acids (taenoic acid, sulfamic acid, etc.), surfactants and inhibitors, etc. .
- alkaline cleaning agents for example, cleaning agents composed of alkali builders, surfactants and antifungal agents, etc.
- neutral cleaning agents for example, surfactants and antifungal agents, etc.
- cleaning agents for example, inorganic acids (sulfuric acid, hydrochloric acid, phosphoric acid, etc.), organic acids (taenoic acid, sulfamic acid, etc.), surfactants and inhibitors, etc. .
- Non-aqueous cleaners include hydrocarbon cleaners (eg, normal paraffin cleaners, isoparaffin cleaners, naphthene cleaners, and aromatic cleaners); alcohol cleaners (eg, isopropyl alcohol cleaners) Cleaning agents and ethanol-based cleaning agents); Glycol ether-based cleaning agents; Fluorine-based cleaning agents (for example, perfluorocarbon (PFC), hydrated fluorocarbon (HCFC), hydrated fluorocarbon (HFC), hydride) Mouth fluoroethers (HFE) and cycloaliphatic hyde mouth fluorocarbons, etc. ⁇ ; chlorinated detergents (eg, methylene chloride, trichloroethylene and tetrachloroethylene); and other non-aqueous detergents (eg, silicone detergents, ester-based) Detergent, n-methylpyrrolidone detergent and terpene detergent Agent); Examples of semi-aqueous detergents include organic solvents (alcohols, hydrocarbons,
- a method of performing a cleaning step by another cleaning method after a cleaning step that generates microbubbles, or a reverse method of the reverse order may be used, and these cleaning steps may be performed simultaneously.
- a cleaning process that generates microbubbles may be performed during the entire process.
- the cleaning method of the present invention may include a rinsing step and a Z or drying step after the cleaning step, if necessary.
- the method of cleaning with microbubbles is an excellent cleaning method in terms of environment and safety because it uses the gas-liquid interface of bubbles and does not use conventional high-concentration organic substances or alkali components. Therefore, a cleaning process using a conventional solvent-based cleaning agent (such as a hydrocarbon-based cleaning agent, a fluorocarbon alternative cleaning agent or a glycol ether-based cleaning agent) or an alkaline cleaning agent can be used with the surfactant for generating microbubbles of the present invention. By substituting the cleaning process with the generated microbubbles, the environmental load can be reduced and the running cost can be reduced. In addition, this cleaning method has an excellent effect that the object to be cleaned is less likely to be damaged during cleaning.
- a conventional solvent-based cleaning agent such as a hydrocarbon-based cleaning agent, a fluorocarbon alternative cleaning agent or a glycol ether-based cleaning agent
- an alkaline cleaning agent can be used with the surfactant for generating microbubbles of the present invention.
- the method of generating microbubbles of the present invention is a method of generating microbubbles in water using the surfactant for generating microbubbles of the present invention or the cleaning agent of the present invention. Physically, it is the same as the above-described method for generating microbubbles for cleaning.
- microbubbles generated by the method of generating microbubbles of the present invention are not limited to cleaning applications, but include environmental purification (water treatment and waste liquid treatment, etc.) and separation (oil-water separation and solid-liquid separation). ), Catalyst (catalyst for chemical reaction), fatigue recovery of living body (bath etc.), medium for chemical reaction, sterilization, aquaculture, aquatic friction reduction, medical treatment (ultrasound contrast, stone destruction, drug delivery, etc.) It can use suitably also for uses such as.
- the invention's effect can be used such as.
- the surfactant for generating microbubbles of the present invention can easily obtain microbubbles using a conventional microbubble generator, and can further stabilize the obtained microbubbles for a long time. Excellent effect is achieved. In addition, there is an excellent effect that there is no inconvenience caused by bubbles on handling of the apparatus in which bubbles are less likely to occur during use.
- the microscopic gas generated using the detergent containing the microbubble generating surfactant of the present invention is also described. Foam is excellent in cleaning effect against dirt such as oil.
- test solution 0.02% by weight aqueous solution of surfactant
- a 1 liter stainless steel autoclave equipped with a stirrer and temperature control is charged with 500 parts of a 70% aqueous solution of sorbitol and 1.6 parts of potassium hydroxide and mixed at room temperature (20 ° C) with stirring. After replacing the interior with nitrogen, the temperature was raised to 120 ° C, and the reaction vessel was dehydrated under reduced pressure (-0.08 MPa) over 2 hours (at this time the water content in the system was lOOppm). After that, under reduced pressure (0.05 MPa), P0446 ⁇ was introduced at a reaction temperature of 120 o C so that the gauge pressure was 0.1 to 0.3 MPa, and the reaction was continued until the pressure in the system disappeared. 785 parts of (PO) 4 mol adduct of sorbitol were obtained. This was the surfactant (A-2) of the present invention.
- a 1 liter stainless steel autoclave equipped with a stirrer and temperature control function was charged with 175 parts of aryl alcohol and 0.8 part of potassium hydroxide and stirred at room temperature (20 ° C) with nitrogen. Replaced. Thereafter, a mixture of E0266 part and PO350 part is introduced under atmospheric pressure at a reaction temperature of 110 ° C so that the gauge pressure is 0.1 to 0.3 MPa, and the reaction is continued until there is no change in pressure in the system. As a result, 783 parts of a random adduct of (EO) 2 mol and (PO) 2 mol of allylic alcohol was obtained. This was designated as the surfactant (A-4) of the present invention.
- a 1 liter stainless steel autoclave equipped with a stirrer and temperature control function was charged with 125 parts of isopropanol V and 0.8 part of potassium hydroxide and mixed at room temperature (20 ° C) with stirring. The inside was replaced with nitrogen. Thereafter, the mixture of E0183 parts and P0483 parts was introduced under atmospheric pressure at a reaction temperature of 110 ° C so that the gauge pressure was 0.1 to 0.3 MPa, and the reaction was continued until there was no change in pressure in the system. As a result, 785 parts of a random adduct of (EO) 2 mol and (PO) 4 mol of isopropanol was obtained. This was designated as the surfactant (A-6) of the present invention.
- a 1 liter stainless steel autoclave equipped with a stirrer and temperature control function was charged with 250 parts of a synthetic alcohol with 14 to 15 carbon atoms ("Dvanol 45" manufactured by Mitsubishi Chemical Corporation) and 0.5 part of potassium hydroxide. Below, the inside of the mixed system was replaced with nitrogen at room temperature (20 ° C). Thereafter, the reaction temperature was 120 under reduced pressure (-0.05 MPa). By introducing a mixture of EO350 parts and P0198 parts with C so that the gauge pressure becomes 0.1 to 0.3 MPa, and reacting until the pressure in the system disappears, a synthetic alcohol having 14 to 15 carbon atoms is obtained. 790 parts of a random adduct of 7 mol of (EO) and 3 mol of (PO 4) was obtained. This was designated as surfactant (A-9) of the present invention.
- surfactant (A-9) of the present invention was designated as surfactant (A-9) of the present invention.
- a 1 liter stainless steel autoclave equipped with a stirrer and temperature control function was charged with 40 parts of 1,2-propylene glycol and 0.8 part of potassium hydroxide and mixed at room temperature (20 ° C) with stirring. The inside was replaced with nitrogen. Then, under reduced pressure (0.05 MPa), introduce P0885 part at a reaction temperature of 120 ° C so that the gauge pressure is 0.1 to 0.3 MPa, and let it react until there is no pressure change in the system. Thus, 920 parts of (PO) 29 mol adduct (a-10) of 1,2-propylene glycol was obtained.
- Surfactant of Comparative Example 2 is Triton (R) X-100 (polyethylene glycol mono-p isootatyl ether, manufactured by Wako Pure Chemical Industries, Ltd.) which is a known surfactant described in Non-Patent Document 1 above. (B-2).
- Ejector 2 (Mazze iniector corp., Model No. 484) is attached to the lower side (10cm from the bottom) of water tank 1 (vertical 20cm x width 20cm x height 45cm) made of an acrylic plate open to the atmosphere at the top.
- the ejector 2 has a gas inlet 3 with an air pump 4 (IWAKI, model: APN215CV-1) and a liquid inlet 5 with a liquid pump 6 (IWAKI, model: MD70 RM). did.
- the drain port at the bottom of the tank 1 and the liquid feed pump 6 were connected so that the liquid in the tank could be circulated.
- ion-exchanged water 15 L ion-exchanged water 15 L, Examples 1 to: L 1 surfactants (A-1) to (A-11) or Comparative Examples 1 to 2 (B-1) Water temperature in the case of adding 15 g of any one of (B-2) (corresponding to Examples 12 to 22 or Comparative Examples 3 to 4, respectively) and only ion-exchanged water (corresponding to Comparative Example 5).
- Microbubbles were generated for 1 minute at 30 ° C, air flow rate 15LZmin, liquid flow rate 6.5LZmin, and the white turbidity during operation was judged visually by the following index. Thereafter, the turbidity after leaving the apparatus for 3 minutes immediately after stopping the device was determined in the same manner. The results are shown in Table 2.
- A The bubble diameter is extremely small. (The other side of the aquarium is almost invisible)
- A Bubbles disappear quickly on the water surface, and no bubbles leak out from the top of the tank.
- the average bubble diameter was measured by the method described above, that is, the following method.
- a digital camera Canon, model number: EOS Kiss Digital N
- a strobe that emits light in 1Z4000 seconds or less.
- X represents the bubble diameter
- N represents the number of bubbles with bubble diameter X.
- a 2 cm x 5 cm test plate (material SUS 304) was immersed in a solution obtained by adding 18 g of liquid paraffin (manufactured by Sanko Chemical Co., Ltd.) and 582 g of n-hexane to a 1 L glass beaker. After immersion for 60 seconds, the substrate was taken out using tweezers, and n-hexane was volatilized at room temperature (about 20 ° C) to prepare a contamination test plate with liquid paraffin attached to the test plate surface.
- liquid paraffin manufactured by Sanko Chemical Co., Ltd.
- the test plate After immersion for 180 seconds while generating microbubbles, remove the test plate from the tank, dry the surface moisture by nitrogen blowing at room temperature, and extract the liquid paraffin remaining on the cleaned test plate surface with oil (Asahi Glass Co., Ltd., H-997) After extraction using 20 ml, the oil concentration was measured using an oil concentration meter (manufactured by Horiba, Ltd., OCMA-355). At this time, this oil When exceeding the measuring range of the densitometer (l to 200 mgZL), the measurement was performed by diluting with the extraction solvent so as to be within the measuring range. From the obtained measured value (mgZL), the amount of residual oil on the surface of the test plate (gZcm 2 ) was calculated by the following formula. X in the formula represents the dilution ratio when diluted with an extraction solvent.
- the residual oil amount on the contamination test plate before washing was 1,450 / z gZcm 2 .
- Residual oil amount g / cm 2 Measured value with oil concentration meter (mg / L) X 2 XX
- s is the weight of the dish before applying dirt
- S is the weight of the dish after applying dirt and drying.
- the quantity, S represents the weight of the dish after washing and further drying.
- R represents the reflectance of the cleaning cloth
- R represents the reflectance of the cleaning cloth
- R represents the reflectance of the contaminated cloth
- the reflectance at 540 nm was measured using a multi-light source spectrocolorimeter (manufactured by Suga Test Instruments).
- a cleaning power of 40% or more is ⁇
- a cleaning power of 32% or more and less than 40% is ⁇
- 20% or more and less than 32% is represented by ⁇ , and less than 20% is represented by X.
- the surfactant of the present invention can be expected to exert the effect of the generated microbubbles to the maximum, and no problems due to bubbles occur in the handling of the apparatus. It can be suitably used as an activator or a cleaning agent.
- the surfactant for microbubbles of the present invention can be used for washing, purification, separation, catalyst, recovery from fatigue of living organisms, chemical reaction medium, sterilization, aquaculture, aquatic life reduction, medical treatment (ultrasound imaging There is a possibility that it can be used as a surfactant used in applications utilizing microbubbles such as calculus destruction and drug delivery.
- FIG. 1 is a diagram showing a bubble diameter distribution.
- FIG. 2 is a diagram showing a microbubble generator.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/813,050 US20090011972A1 (en) | 2004-12-28 | 2005-12-27 | Surfactant for Fine-Bubble Formation |
| US12/415,156 US7833359B2 (en) | 2004-12-28 | 2009-03-31 | Method for cleaning, employing a surfactant for fine-bubble formation |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-381526 | 2004-12-28 | ||
| JP2004381526 | 2004-12-28 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/813,050 A-371-Of-International US20090011972A1 (en) | 2004-12-28 | 2005-12-27 | Surfactant for Fine-Bubble Formation |
| US12/415,156 Division US7833359B2 (en) | 2004-12-28 | 2009-03-31 | Method for cleaning, employing a surfactant for fine-bubble formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006070816A1 true WO2006070816A1 (ja) | 2006-07-06 |
Family
ID=36614928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/023930 Ceased WO2006070816A1 (ja) | 2004-12-28 | 2005-12-27 | 微小気泡発生用界面活性剤 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20090011972A1 (ja) |
| JP (1) | JP4502206B2 (ja) |
| KR (1) | KR101154707B1 (ja) |
| CN (2) | CN101072858A (ja) |
| TW (1) | TW200624550A (ja) |
| WO (1) | WO2006070816A1 (ja) |
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| WO2008132150A1 (de) * | 2007-04-25 | 2008-11-06 | Basf Se | Alkoholalkoxylate, diese enthaltende mittel und verwendung der alkoholalkoxylate als adjuvans für den agrochemischen bereich |
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| RU2010105681A (ru) * | 2007-07-20 | 2011-08-27 | Басф Се (De) | Композиции, содержащие алкоксилаты спирта и применение алкоксилатов спирта в качестве адъюванта для агрохимического сектора |
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| CN107065947A (zh) * | 2017-02-27 | 2017-08-18 | 环境保护部华南环境科学研究所 | 间歇式逆流清洗镀件的智能控水设备及其自动控水方法 |
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| JP6653692B2 (ja) * | 2017-11-20 | 2020-02-26 | 大同メタル工業株式会社 | 洗浄装置 |
| TWI728232B (zh) * | 2018-03-05 | 2021-05-21 | 日商金星股份有限公司 | 微細氣泡產生用水系組成物以及洗淨方法 |
| JP7172119B2 (ja) * | 2018-04-27 | 2022-11-16 | 三菱電機株式会社 | 給湯装置 |
| CN111569683B (zh) * | 2020-05-14 | 2022-04-15 | 深圳市陆讯纳米科技有限公司 | 一种高浓度长效臭氧纳米气泡水溶液及制备方法 |
| JP2024514838A (ja) * | 2021-04-06 | 2024-04-03 | リグノソル・アイピー・リミテッド | リグニンベースの組成物及び関連方法 |
| CN114264699A (zh) * | 2021-12-10 | 2022-04-01 | 重庆石墨烯研究院有限公司 | 气体传感器石墨烯电极的制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008132150A1 (de) * | 2007-04-25 | 2008-11-06 | Basf Se | Alkoholalkoxylate, diese enthaltende mittel und verwendung der alkoholalkoxylate als adjuvans für den agrochemischen bereich |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200624550A (en) | 2006-07-16 |
| KR101154707B1 (ko) | 2012-06-08 |
| US20090233828A1 (en) | 2009-09-17 |
| US20090011972A1 (en) | 2009-01-08 |
| JP2006206896A (ja) | 2006-08-10 |
| TWI358453B (ja) | 2012-02-21 |
| US7833359B2 (en) | 2010-11-16 |
| CN101928646B (zh) | 2012-02-22 |
| CN101928646A (zh) | 2010-12-29 |
| KR20070094808A (ko) | 2007-09-21 |
| JP4502206B2 (ja) | 2010-07-14 |
| CN101072858A (zh) | 2007-11-14 |
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