WO2011024378A1 - 親水性コート剤およびその使用方法 - Google Patents
親水性コート剤およびその使用方法 Download PDFInfo
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- WO2011024378A1 WO2011024378A1 PCT/JP2010/004645 JP2010004645W WO2011024378A1 WO 2011024378 A1 WO2011024378 A1 WO 2011024378A1 JP 2010004645 W JP2010004645 W JP 2010004645W WO 2011024378 A1 WO2011024378 A1 WO 2011024378A1
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- coating agent
- hydrophilic
- hydrophilic coating
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- sodium silicate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1625—Non-macromolecular compounds organic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/19—Quaternary ammonium compounds
Definitions
- the present invention relates to a coating type hydrophilic coating agent suitable for antifogging treatment in a greenhouse, greenhouse, etc., and antifouling treatment of an outer wall of a house and the like, and a method for using the same, in particular, sodium silicate [Na 2 O ⁇ 2 ( The present invention relates to the provision of a one-component inexpensive hydrophilic coating agent using SiO 2 )] and a method of using the same.
- an antifogging agent also referred to as a dropping agent
- a resin kneading type a coating type (coating type).
- anti-fogging agent of the resin kneading type examples include surfactants, inorganic colloidal particles such as metal colloids, dicarboxylic acids having 3 to 20 carbon atoms and aliphatic alcohols or aliphatic amines. Also proposed are those mainly composed of a reaction mixture with a polyhydric alcohol or oxirane ring, and those composed mainly of a mixture of a hindered amine compound and a hydrotalcide compound. It is kneaded into a film for use in advance (see, for example, Patent Documents 1, 2, and 3).
- coating type anti-fogging agents include those based on water-absorbing crosslinked resins such as unsaturated carboxylic acid ester monomers, and hydrophilic coatings based on inorganic hydrophilic colloidal substances and hydrophilic organic compounds. Agents have been proposed, and any anti-fogging agent of the coating type is used after being applied to agricultural films, agricultural glass, etc. in existing greenhouses and greenhouses (for example, Patent Document 4, 5).
- the above-mentioned coating type antifogging agent can be applied to an existing greenhouse or greenhouse agricultural film or agricultural glass by spraying or the like, and can be easily antifogged.
- the antifogging effect deteriorates with time, it may be applied again, and the degree of freedom of the treatment method is higher than that of the kneading type.
- the coating type antifogging agent is more useful in the aftermarket than the resin kneading type antifogging agent.
- conventional antifogging agents of the coating type are mainly composed of expensive polymer water-absorbing cross-linked resins, or hydrophilic coatings composed mainly of expensive inorganic hydrophilic colloidal substances (colloidal silica) and hydrophilic organic compounds. It is expensive because it is an agent.
- the latter hydrophilic coating agent mainly composed of inorganic hydrophilic colloid substance and hydrophilic organic compound is actually a two-component type, requiring a two-component container to be bulky, transported, Expenses for storage etc. are expensive, and it is troublesome to mix and dilute the two liquids at an appropriate ratio at the site of use, and water to be diluted is selected in consideration of the reaction with colloidal silica. There is also a need.
- antibacterial treatment anti-mold / moss treatment
- antibacterial treatment can be performed at the same time.
- the adhesion of mold and moss reduces the light transmittance in agricultural houses, and the exterior of house walls (outdoor walls) deteriorates the appearance.
- Antibacterial treatment is useful in preventing them, but antibacterial agents often lose their effectiveness due to scattering or deterioration due to outdoor exposure, chlorine concentration, acidity / alkaline, antifogging treatment agent or antifouling treatment It is not easy to select an appropriate antibacterial agent.
- the present invention has been made in consideration of the above-mentioned points, and is a coating-type hydrophilic coating agent suitable for anti-fogging treatment of a greenhouse, greenhouse, etc.
- a one-component hydrophilic coating agent using soda [Na 2 O.2 (SiO 2 )] and a method of using the same are provided.
- the hydrophilic coating agent of the present invention comprises 1 to 70 parts by weight of sodium silicate [Na 2 O.2 (SiO 2 )] and 0.5 to 30 parts by weight of low molecular weight hydrophilic.
- the low molecular weight hydrophilic organic compound has at least one of a carboxylic acid group, a carboxylic acid group, a hydroxy group, an amide group, an amino group, and an ammonium base, and is a carbon. It is characterized by being a hydrophilized organic compound having a number of 1 to 18 (claim 1).
- the hydrophilic coating agent of the present invention further comprises 0.1 to 15 having at least one of a carboxylic acid group, a hydroxy group, a phosphoric acid group, a sulfuric acid group, an amide group or an amino group in the constitution of claim 1. It is characterized by containing a part by weight of a thickener (claim 2).
- the hydrophilic coating agent of the present invention further has a thickening effect by reacting with the sodium silicate to increase the viscosity of the hydrophilic coating agent and reacting with the thickener. It is characterized by containing 0.1 to 15 parts by weight of a metal ion compound to be exhibited (claim 3).
- hydrophilic coating agent of the present invention is further characterized by containing 0.005 to 1 part by weight of a quaternary ammonium salt organic compound (claim 4).
- the method for using the hydrophilic coating agent of the present invention is as follows: a diluted solution obtained by diluting the hydrophilic coating agent according to any one of claims 1 to 4 with water, an agricultural film, agricultural glass, a house outdoor wall, and the like. It is characterized by being applied to at least one side of the coating object.
- hydrophilic coating agent of the present invention 1 to 70 parts by weight of inexpensive sodium silicate [Na 2 O.2 (SiO 2 )] as a main component and at least a carboxylic acid group, a carboxylic acid group, a hydroxy group, an amide Low molecular hydrophilicity having one of a group, an amino group, and an ammonium base and having a carbon number of 1 (such as formic acid) to 18 (such as stearic acid (C 17 H 35 COOH)), which is less expensive than a high molecular weight organic compound
- the hydrophilic coating agent of the present invention by adding a certain amount of a thickener, the adhesiveness between the layer of sodium silicate and the substrate film after coating and after adhesion and drying is improved, and the substrate As a result, the durability of the coating layer is improved.
- the moisture content of the thickener is large, the antifogging effect (hydrophilicity) against water droplets and raindrops on the coated surface of agricultural films and the like is further improved, and the antifogging effect and antifouling effect are further improved. To do.
- the hydrophilic coating agent of the present invention by adding a certain amount of metal ion compound together with the thickener, a thickener and a metal having sodium silicate or a carboxylic acid group, a sulfate group, and a phosphate group The ionic compound reacts to exert further thickening. In this case, a sufficient effect can be obtained even if the amount of the thickener is reduced.
- hydrophilic coating agent of the present invention an unprecedented one-component hydrophilic coating that exhibits an antibacterial effect as well as an antifogging effect and an antifouling effect by further adding a certain amount of a quaternary ammonium salt organic compound An agent can be provided.
- the hydrophilic coating agent according to any one of claims 1 to 4 is diluted with water and applied to at least one surface of an object to be coated such as an agricultural film. Therefore, it is possible to reduce the size of the container by making the hydrophilic coating agent a concentrated type, and when using it, the necessary amount can be appropriately diluted with water and used. There is an advantage that the hydrophilic coating agent can be handled more easily without selecting water to be diluted.
- the hydrophilic coating agent of the present invention contains 1 to 70 parts by weight of sodium silicate [Na 2 O.2 (SiO 2 )] and 0.5 to 30 parts by weight of a low molecular weight hydrophilic organic compound as main components.
- a low-molecular hydrophilic organic compound comprising a one-component aqueous solution is a hydrophilic compound having 1 to 18 carbon atoms having at least one of a carboxylic acid group, a carboxylic acid group, a hydroxy group, an amide group, an amino group, and an ammonium base. It is an organic compound (corresponding to claim 1).
- the hydrophilic coating agent is used as an undiluted solution, or preferably diluted appropriately (for example, 20 to 40 times) with water (tap water, etc.) to form an agricultural film for a greenhouse or an agricultural glass for a greenhouse.
- water tap water, etc.
- the applied hydrophilic coating agent sodium silicate [Na 2 O.2 (SiO 2 )] is an inexpensive and highly stable inorganic material carrying a low molecular weight hydrophilic organic compound, and is composed of water glass (SiO 2 in NaOH It is also called a transparent adhesive solution (not a colloid solution) dissolved in
- the sodium silicate is dried to form a glass body film on the application surface, and is firmly attached to the application surface to make the application surface a thin film Coat uniformly with.
- the low molecular weight hydrophilic organic compound of the hydrophilic coating agent is a hydrophilic compound having 1 to 18 carbon atoms (such as formic acid) to 18 (such as stearic acid (C 17 H 35 COOH)), and the applied hydrophilic coating agent is dried. Then, it is uniformly dispersed and supported in the glass body of sodium silicate to form a hydrophilic coating on the coating surface, and water droplets and raindrops attached to the coating surface make the hydrophilic coating surface due to its hydrophilicity. It gets wet and drops.
- the hydrophilic coating agent of the present invention when the hydrophilic coating agent of the present invention is applied as an antifogging agent to the inside of an agricultural film in a greenhouse or an agricultural glass in a greenhouse, water drops do not fall on the plant, etc. Demonstrates anti-fogging effect.
- the hydrophilic coating agent of the present invention when the hydrophilic coating agent of the present invention is applied and coated on the outside of an agricultural film of a greenhouse or an agricultural glass of a greenhouse, or on an outdoor wall of a house, raindrops are poured and simultaneously adhered to the wall surface. Dust etc. are also flowed to exhibit a good antifouling effect.
- Examples of the low molecular weight hydrophilic organic compound include the following aliphatic organic compounds (A1) to (A6).
- the low molecular weight hydrophilic organic compound is not limited to these exemplified aliphatic organic compounds.
- organic compounds containing aromatics are generally harmful compounds, they are not suitable as low molecular weight hydrophilic organic compounds and are excluded from low molecular weight hydrophilic organic compounds.
- (A1) Aliphatic organic compounds having only carboxyl groups Formic acid, acetic acid, oxalic acid, maleic acid, succinic acid, phthalic acid, isophthalic acid, terephthalic acid, malonic acid, fumaric acid, glutaric acid, glutaconic acid, adipic acid, aconite Acid, pyruvic acid, propionic acid, butyric acid, valeric acid, captoic acid, enanthic acid, caprylic acid, verargonic acid, capric acid, lauric acid, myristic acid, valmitic acid, margaric acid, stearic acid, etc., or salts thereof, or Carboxylic anhydride (succinic anhydride, etc.), aldoses such as glyceraldehyde, erythrose, glucose, arabinose, galactose, or derivatives thereof, aldonic acids, uronic acids, aldanoic acids, etc., or salts thereof.
- A2 Aliphatic organic compound having a carboxyl group and a hydroxy group Citric acid (following formula (1)), gluconic acid (following formula (2)), tartaric acid (following formula (3)), malic acid, lactic acid, etc. Their salts or their anhydrides.
- (A3) Aliphatic organic compound having a carboxyl group and an amino group (so-called amino acid) Glycine (formula (4) below), alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, aminobutyric acid, glycine, creatine, kainic acid, histidine, isoleucine, leucine, lysine, proline, serine, threoline, valine, etc. Or a salt thereof.
- (A4) Aliphatic organic compound having a hydroxy group and an amino group Ethanolamine, diethanolamine (the following formula (5)), triethanolamine, diethanolamine or the like or salts thereof, or aminoglucooxides such as kanamycin.
- (A5) Aliphatic organic compound having an amide group Acetamide, urea, carbamic acid, dimethylformamide and the like.
- (A6) Aliphatic organic compound having a hydroxy group Ethylene glycol, propylene glycol, diethylene glycol, butanetriol, etc., alditols such as glycerin, erythritol, xylitol, ketoses such as fructose, pyranoses, furanoses, etc. Monosaccharides such as glucose, disaccharides such as sucrose and sucrose, and trisaccharides such as raffinose.
- low molecular weight hydrophilic organic compounds are less expensive than hydrophilic polymer polymers having 19 or more carbon atoms, have a high ratio of hydrophilic groups, and exhibit good hydrophilicity to water and raindrops.
- citric acid having 6 carbon atoms which is an example of a low molecular weight hydrophilic organic compound, has four hydrophilic groups (OH group and COOH group) in one molecule, and has a high ratio of hydrophilic groups. Shows good hydrophilicity.
- the hydrophilic coating agent of the present invention 1 to 70 parts by weight of sodium silicate and 0.5 to 30 parts by weight of low molecular weight hydrophilic organic compound are used because the sodium silicate is used as a base material for the coating layer and This is because when the content of the low molecular weight hydrophilic organic compound is large, the coating layer is difficult to become a glass body, and therefore it is necessary to have a moderate amount less than sodium silicate.
- the low molecular weight hydrophilic organic compound is an acid compound such as carboxylic acid
- sodium silicate may be gelled as silica gel depending on the addition amount, so that the addition amount is smaller than that of sodium silicate. This is presumably because partial silica gel formation by addition of an acidic compound such as carboxylic acid exhibits better hydrophilicity and quick drying properties.
- sodium silicate is less than 10 parts by weight.
- the amount of low molecular weight hydrophilic organic compound is 0.5 parts by weight minimum and the thickener is 0.1 parts by weight minimum.
- the amount of sodium silicate is 1 to 70 parts by weight so as to cover a range less than 10 parts by weight.
- the hydrophilic coating agent of the present invention comprising 1 to 70 parts by weight of sodium silicate [Na 2 O.2 (SiO 2 )] and 0.5 to 30 parts by weight of a low molecular weight hydrophilic organic compound as main components.
- a low molecular weight hydrophilic organic compound that is supported by sodium silicate and is uniformly distributed on the coated surface, thereby making the coated surface a good hydrophilic surface, antifogging treatment of a greenhouse or greenhouse, Antifouling treatment can be reliably performed.
- the hydrophilicity of the coated surface can be recovered at a low cost by applying the hydrophilic coating agent again.
- hydrophilic coating agent suitable for anti-fogging treatment of greenhouses and greenhouses and anti-contamination treatment of outdoor walls of the house, and only one container is required, it is not bulky, and it is used like a two-component type. It is possible to provide an unprecedented inexpensive and easy-to-handle hydrophilic coating agent using an inexpensive sodium silicate that does not require any mixing treatment at the time, and recovers the effect at a low cost by being re-applied.
- the container becomes smaller and easy to handle. Further, when used, it can be easily diluted with water to obtain the required amount, and there is an advantage that it does not take up space for storage after use (corresponding to claim 5). In practice, it is preferable to set the dilution factor to 20 to 40 times as described above. Further, in the case of the hydrophilic coating agent of the present invention, since the main component is sodium silicate, it is not necessary to select the water to be diluted in consideration of the reaction, compared with the case where colloidal silica or the like is the main component. Etc.
- the hydrophilic coating agent is further added with 0.1 to 15 parts by weight of a thickener having at least one of carboxylic acid group, hydroxy group, phosphoric acid group, sulfuric acid group, amide group or amino group. It is preferable to contain (corresponding to claim 2). Further, it is also preferable to add 0.1 to 15 parts by weight of a metal ion compound together with the thickener to exhibit further thickening (corresponding to claim 3).
- the thickener to be added may be a natural type composed of a hydroxy group and a carboxylic acid group with a polysaccharide such as guar gum and xanthan gum, or may be a semi-synthetic type chemically modified to a natural type. And a synthetic system formed by polymerizing a vinyl monomer containing a hydroxy group, a carboxylic acid group, an amide group, an amino group, a phosphoric acid group, a sulfuric acid group or the like.
- the hydrophilic coating agent improves the adhesiveness between the layer of sodium silicate after coating and drying and the substrate film, etc. It adheres and the durability of the coating layer is improved.
- the moisture content of the thickener is large, the antifogging effect (hydrophilicity) against water droplets and raindrops on the coated surface of agricultural films and the like is further improved, and the antifogging effect and antifouling effect are further improved. To do.
- the addition amount (content) of the thickener is 0.1 to 15 parts by weight.
- Many of the thickeners show a thickening effect with a small addition amount, but some natural systems have This is because there are thickeners having a relatively low thickening effect such as gelatin and agar, and it is necessary to select an appropriate amount depending on the thickener to be selected.
- thickener examples include the following (B1), (B2), (B3), and (B4). It is also conceivable to use a combination (combination) of these as a thickener.
- (B2) Semi-synthetic thickener (chemically modified natural) Hydroxyethylcellulose, hydroxyethylmethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, solubilized starch, cationized guar gum, hydroxypropyl starch phosphate, carboxymethylcellulose sodium and the like.
- (B3) Synthetic thickener Organic compounds represented by the following general formula (6), such as polycarboxyvinyl polymer and salts thereof, polyvinyl alcohol, and polyacrylamide.
- Organic compounds represented by the following general formula (7) such as polyvinyl sulfonic acid, polyvinyl phosphoric acid and salts thereof. These organic compounds have the same thickening effect as the organic compound represented by the general formula (6), and are more hydrophilic than the organic compound represented by the general formula (6). .
- polyvinylpyrrolidone ethylene vinyl alcohol, polyacrylamide, polyethylene oxide, polyethyleneimine, polyether ester amide, naphthalene sulfonic acid formalin condensate, polyhydroxybutyrate, aqueous urethane resin, aqueous phenol resin, aqueous urethane acrylic resin, etc.
- Organic compounds ethylene compounds, polyacrylamide, polyethylene oxide, polyethyleneimine, polyether ester amide, naphthalene sulfonic acid formalin condensate, polyhydroxybutyrate, aqueous urethane resin, aqueous phenol resin, aqueous urethane acrylic resin, etc.
- Inorganic thickeners such as bentonite can also be used as the thickener of the present invention. That is, some of these inorganic thickeners are synthesized with natural ones, but generally exist as particles in an aqueous solution, and increase the viscosity by forming hydrogen bonds between particles by hydroxyl groups on the particle surface. Exerts thickening due to electrostatic interaction due to charge on the particle surface. Therefore, this kind of inorganic thickener can also be used as the thickener of the present invention, like the organic thickener.
- the inorganic thickener include those obtained by pulverizing natural stones such as bentonite, talc, sepiolite, and magnesium aluminum silicate, those obtained by purifying or modifying them, and LAPONITE (Rockwood Additives). Synthetic bentonite and the like.
- a thickener having a carboxylic acid group, a sulfate group, or a phosphate group is added to the hydrophilic coating agent, and silicic acid is added.
- silicic acid is added.
- 0.1 to 15 parts by weight of a metal ion compound that reacts with a thickener having soda and a carboxylic acid group, a sulfuric acid group, and a phosphoric acid group to increase the viscosity is added.
- calcium silicate reacts with calcium ions to produce calcium silicate, which is a component of cement
- calcium ion compounds such as calcium sulfate, calcium carbonate, and calcium chloride can be converted to carboxylic acid groups, sulfate groups, phosphorous groups.
- a thickener having an acid group 0.1 to 15 parts by weight is added to the hydrophilic coating agent, gelled calcium silicate is formed as a thickening agent and contained in the hydrophilic coating agent, and reacts with sodium silicate.
- magnesium ions, aluminum ions, and the like are expected to have the same effect as calcium ions, the same thickening effect can be obtained by adding 0.1 to 15 parts by weight of these ionic compounds as metal ion compounds. There is expected.
- zinc ions such as zinc sulfate and zinc chloride are used as the metal ion compound.
- the compound may be added in an amount of 0.1 to 15 parts by weight to form a complex of a carboxylic acid-containing thickener and zinc ions to exhibit thickening.
- magnesium ions, aluminum ions, and the like are expected to have the same effect as zinc ions, the same thickening can be achieved by adding 0.1 to 15 parts by weight of these ionic compounds as the metal ion compound. Expected to be effective.
- the hydrophilic coating agent preferably further contains 0.005 to 1 part by weight of a quaternary ammonium salt compound as an antibacterial agent (corresponding to claim 5).
- a quaternary ammonium salt compound as an antibacterial agent (corresponding to claim 5).
- antibacterial agents such as silver ions, carboxylic acids, and low molecular alcohols are used, but antibacterial agents that can be used under outdoor conditions are scattered and deteriorated, high chlorine concentration in diluted water, and alkaline conditions are limited. Is done.
- the hydrophilic coating agent of the present invention contains 0.005 to 1 part by weight of a quaternary ammonium salt compound that can be used as an antibacterial agent under outdoor exposure, high chlorine concentration of diluted water, and alkaline conditions.
- a quaternary ammonium salt compound that can be used as an antibacterial agent under outdoor exposure, high chlorine concentration of diluted water, and alkaline conditions.
- agricultural vinyl, agricultural glass, and antibacterial treatment of outdoor walls can be performed.
- Examples of the quaternary ammonium salt compound include the following (C1) to (C6).
- (C1) ⁇ Benzethonium> Benzethonium chloride (for example, “HYAMINE 1622” from Lonza Japan KK).
- (C2) ⁇ Benzalkonium> Benzalkonium chloride solution (eg, “HYAMINE 3500-J” from Lonza Japan Co., Ltd.), alkyldimethylbenzylammonium chloride (eg, “BARQUAT MB-80 / 50” from Lonza Japan Ltd.) Alkyldimethylbenzylammonium chloride (eg, “BARQUAT MS-100” from Lonza Japan), alkyldimethylethylbenzylammonium chloride / alkyldimesylbenzylammonium chloride mixture (eg, “BARQUAT” from Lonza Japan) (Barquat) 4280-Z / 4250-Z "), alkyldimethylmethylbenzylammonium chloride / alkyldimethylbenzylammonium chloride complex Scan (e.g., Lonza Japan of Ltd. "BARQUAT (Burke Auto) 1552”), alkyl dimethyl benzyl
- (C3) ⁇ Dialkyldimethyl> Didecyldimethylammonium chloride (for example, “BARDAC 2280/2250” from Lonza Japan Co., Ltd.), dialkyl (C8 / C8, C8 / C10, C10 / C10) dimethylammonium chloride / benzelconium chloride mixture (for example, Lonza Japan ( "BARDAC (Bardac) 208M / 205M”), decylisononyldimethylammonium salt (for example, "BARDAC (Burdac) 2170P” from Lonza Japan).
- Didecyldimethylammonium chloride for example, “BARDAC 2280/2250” from Lonza Japan Co., Ltd.
- dialkyl (C8 / C8, C8 / C10, C10 / C10) dimethylammonium chloride / benzelconium chloride mixture for example, Lonza Japan ( "BARDAC (Bard
- (C4) ⁇ Low foam type> Dioctyldimethylammonium chloride (for example, “BARDAC LF-80” from Lonza Japan Co., Ltd.).
- the addition amount of the quaternary ammonium salt compound as the antibacterial agent is 0.005 to 1 part by weight.
- the quaternary ammonium salt compound exhibits an antibacterial effect even in a very small amount of about 500 ppm, but it has durability. Therefore, it is added in a large amount, and the amount added is adjusted so that the effect lasts for a long time even when the water is poured into the water.
- hydrophilic coating agent hydrophilic coating agent consisting only of sodium silicate and surfactant containing no low molecular weight hydrophilic organic compound, 0.5 part by weight (wt%) as a low molecular weight hydrophilic organic compound.
- a stock hydrophilic coating agent containing 3 parts by weight (wt%) of acetic acid, glycine, and diethanolamine as a hydrophilic organic compound was also obtained.
- each hydrophilic coating agent of the obtained undiluted solution is diluted with 30 times each water (30 kg) and diluted, each of these diluted solutions is put in a flat metal vat, and 10 cm square agriculture is added to the diluted solution of the metal vat.
- Film for agricultural use agricultural PO (polyolefin) film manufactured by Achilles Co., Ltd. under the trade name “Achilles High Veil”
- each of these agricultural films was sun-dried for about 4 hours to confirm that each hydrophilic coating agent was coated on both sides
- the agricultural films were placed on a metal vat containing only water. Put each side in water and pull it up to see if a water film is formed on both sides of each agricultural film coated (whether or not it has dripping properties). The presence or absence of a hydrophilic effect was determined.
- Table 1 shows the judgment results shown in Table 1 .
- the addition amount of Table 1 is a density
- the reference example in Table 1 shows the case where the two-component hydrophilic coating agent is applied.
- the added thickener is 6 g or 1 g of xanthan gum (xanthan gum FJ grade manufactured by Jungbunzura AG) or 1 g of carboxyvinyl polymer (trade name “Carbopol ETD2050” manufactured by Nikko Chemicals Co., Ltd.), or , 3 g or 1 g of guar gum (purified guar gum manufactured by MRC Polysaccharide Co., Ltd.), or 1 g of synthetic bentonite (LAPONITE manufactured by Rockwood Additives).
- Aluminum chloride as the metal ion compound is 0.1 g
- the surfactant is 10 g (trade name “Charmy V Quick” manufactured by Lion Corporation).
- each obtained hydrophilic agent aqueous solution by diluting with 5 times each water (5 kg), and put these diluted solutions in flat metal bats respectively.
- a 10 cm square agricultural film was immersed to form an agricultural film in which each hydrophilic coating agent was applied on both sides.
- Table 2 the addition amount of Table 2 is a weight part (concentration) of the thickener before dilution (concentrated state).
- x indicates that the adhesion of the coating layer of the hydrophilic coating agent is low (coating is peeled off), and “ ⁇ ” indicates that the adhesion of the coating layer of the hydrophilic coating agent is high (the coating is It did not peel off.
- the one-component hydrophilic coating agent of the present invention is a layer of sodium silicate after coating and drying by adding (adding) a thickener (or metal compound and thickener). It was confirmed that the adhesion between the film and the base film was improved and the film was more firmly attached to the agricultural film as a base material, and the durability of the coating layer was improved. And since the moisture content of the thickener is large, the antifogging effect (hydrophilicity) against water droplets and raindrops on the coated surface of agricultural films and the like is further improved, and the antifogging effect and antifouling effect are further improved. To do.
- the thickener generally gels with an addition amount of about 1 wt%, but there are some which thicken the viscosity (such as carboxyvinyl polymer) by making it acidic or alkaline. Therefore, in such a case, it is preferable to increase the addition amount.
- anhydrous citric acid 3 g of thickener (xanthan gum (xanthan gum FJ grade manufactured by Jungbunzura AG), or 6 g of carboxyvinyl polymer (trade name “Carbopol ETD2050” manufactured by Nikko Chemicals Co., Ltd.), or 3 g of guar gum (purified guar gum manufactured by MRC Polysaccharide Co., Ltd.) and 10 g of a surfactant (trade name “Charmy V Quick” manufactured by Lion Co., Ltd.) were added to obtain 1 kg of a transparent solution.
- thickener xanthan gum (xanthan gum FJ grade manufactured by Jungbunzura AG)
- carboxyvinyl polymer trade name “Carbopol ETD2050” manufactured by Nikko Chemicals Co., Ltd.
- guar gum purified guar gum manufactured by MRC Polysaccharide Co., Ltd.
- 10 g of a surfactant trade name “Charmy V Quick” manufactured by Lion Co., Ltd
- quaternary ammonium salt organic compound (antibacterial agent) (BARDAC 228 from Lonza Japan KK) Or 0.15 g of the company's Carboquat or the company's BARDAP 26), thereby adding 30 parts by weight (wt%) sodium silicate and 3 parts by weight (wt%) ) And a low molecular weight hydrophilic organic compound of citric acid, 0.3 to 0.6 parts by weight (wt%) thickener and 0.005 to 0.015 parts by weight (wt%) 1 kg of a hydrophilic coating agent of a transparent solution (stock solution) to which an organic compound of quaternary ammonium salt (antibacterial agent) was added.
- each obtained hydrophilic agent aqueous solution is diluted with 30 times water (30 kg) and diluted, and this diluted solution is put into a flat metal vat, and the same as the first and second embodiments in the metal vat diluent.
- a 10 cm square agricultural film was soaked to form an agricultural film in which a hydrophilic coating agent to which a thickener and a quaternary ammonium salt organic compound (antibacterial agent) were added was applied on both sides.
- Table 3 the test results shown in Table 3 were obtained.
- the addition amount of Table 3 is a weight part (concentration) of the thickener before dilution (concentrated state).
- the one-component hydrophilic coating agent of the present invention also has a sufficient antibacterial effect by adding (adding) a quaternary ammonium salt organic compound.
- X indicates that moss was formed on the surface of the agricultural film coated with the hydrophilic coating agent
- ⁇ indicates that some moss was grown
- ⁇ indicates that there was no moss. Indicates that did not grow.
- the present invention can be applied to an inexpensive one-pack type hydrophilic coating agent of a coating type suitable for anti-fogging treatment in a greenhouse, greenhouse, etc. and anti-fouling treatment on an outdoor wall of a house, and a method for using the same.
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Abstract
Description
ギ酸、酢酸、シュウ酸、マレイン酸、コハク酸、フタル酸、イソフタル酸、テレフタル酸、マロン酸、フマル酸、グルタル酸、グルタコン酸、アジピン酸、アコニット酸、ピルビン酸、プロピオン酸、酪酸、吉草酸、カプトン酸、エナント酸、カプリル酸、ベラルゴン酸、カプリン酸、ラウリル酸、ミリスチン酸、バルミチン酸、マルガリン酸、ステアリン酸等又はそれらの塩、あるいは、無水カルボン酸(無水コハク酸等)、あるいは、グリセルアルデヒド、エリトロース、グルコース、アラビノーズ、ガラクトーズ等のアルドース類、あるいはその誘導体であるアルドン酸類、ウロン酸類、アルダン酸類等又はそれらの塩。
クエン酸(下記式(1))、グルコン酸(下記式(2))、酒石酸(下記式(3))、リンゴ酸、乳酸等又はそれらの塩、あるいはそれらの無水物。
グリシン(下記式(4))、アラニン、アルギニン、アスパラギン、アスパラギン酸、システイン、グルタミン、グルタミン酸、アミノ酪酸、グリシン、クレアチン、カイニン酸、ヒスチジン、イソロイシン、ロイシン、リシン、プロリン、セリン、トレオリン、バリン等又はそれらの塩。
エタノールアミン、ジエタノールアミン(下記式(5))、トリエタノールアミン、ジエタノールアミン等又はそれらの塩、あるいは、カナマイシン等のアミノグルコキシド類。
アセトアミド、尿素、カルバミン酸、ジメチルホルムアミド等。
エチレングリコール、プロピレングリコール、ジエチレングリコール、ブタントリオール等、あるいは、グリセリン、エリトリトール、キシリトール等のアルジトール類、フルクトース等のケトース類、ピラノース類、フラノース類等、あるいは、グルコース等の単糖類、スクロース、ショ糖等の二糖類、ラフィノース等の三糖類等。
つぎに、前記親水性コート剤は、さらに、少なくともカルボン酸基、ヒドロキシ基、リン酸基、硫酸基、アミド基又はアミノ基の一つを有する0.1~15重量部の増粘剤を添加して含有することが好ましい(請求項2に対応)。また、増粘剤とともに、0.1~15重量部の金属イオン化合物を添加してさらなる増粘性を発揮させることも好ましい(請求項3対応)。
グアーガム、スターチ、アラビアガム、キサンタンガム、ゼラチン、コラーゲン、タマリンドシードガム、寒天、カラギーナン、ペクチン、プルラン、大豆多糖類、ローカストビーンガム、グルコマンナン、キトサン、リグニン、へミセルロース等。
ヒドロキシエチルセルロース、ヒドロキシエチルメチルセルロース、メチルセルロース、ヒドロキシプロピルセルロース、ヒドロキシプロピルメチルセルロース、可溶化スターチ、カチオン化グアーガム、ヒドロキシプロピルデンプンリン酸、カルボキシメチルセルロースナトリウム等。
ポリカルボキシビニルポリマーおよびその塩、ポリビニルアルコール、ポリアクリルアミドなどの下記一般式(6)で表示される有機化合物。
ベントナイトをはじめとする無機系増粘剤も本発明の増粘剤として利用することができる。すなわち、これらの無機系増粘剤には天然のものと合成されたものがあるが、一般に水溶液中で粒子として存在し、粒子表面の水酸基により粒子間で水素結合を形成することにより増粘性を発揮し、または、粒子表面の電荷による静電相互作用により増粘性を発揮する。そのため、この種の無機系増粘剤も有機系の増粘剤と同様に本発明の増粘剤として利用可能である。
前記親水性コート剤は、さらに、抗菌剤として四級アンモニウム塩化合物を0.005~1重量部含有することが好ましい(請求項5対応)。抗菌剤は、銀イオン、カルボン酸系、低分子アルコール系など多種のものが使用されているが、屋外暴露による飛散および劣化、希釈水の高塩素濃度、アルカリ性条件下で使用できる抗菌剤は限定される。
塩化ベンゼトニウム(例えばロンザジャパン(株)の「HYAMINE(ハイアミン)1622」)。
塩化ベンザルコニウム液(例えばロンザジャパン(株)の「HYAMINE(ハイアミン)3500-J」)、アルキルジメチルベンジルアンモニウムクロライド(例えばロンザジャパン(株)の「BARQUAT(バークオート)MB-80/50」)、アルキルジメチルベンジルアンモニウムクロライド(例えばロンザジャパン(株)の「BARQUAT(バークオート)MS-100」)、アルキルジメチルエチルベンジルアンモニウムクロライド/アルキルジメシルベンジルアンモニウムクロライド混合物(例えばロンザジャパン(株)の「BARQUAT(バークオート)4280-Z/4250-Z」)、アルキルジメチルメチルベンジルアンモニウムクロライド/アルキルジメチルベンジルアンモニウムクロライドコンプレックス(例えばロンザジャパン(株)の「BARQUAT(バークオート)1552」)、アルキルジメチルベンジルアンモニウムクロライド(例えばロンザジャパン(株)の「BARQUAT(バークオート)MX-80/50」)。
ジデシルジメチルアンモニウムクロライド(例えばロンザジャパン(株)の「BARDAC(バーダック)2280/2250」)、ジアルキル(C8/C8、C8/C10、C10/C10)ジメチルアンモニウムクロライド/塩化ベンゼルコニウム混合物(例えばロンザジャパン(株)の「BARDAC(バーダック)208M/205M」)、デシルイソノニルジメチルアンモニウム塩(例えばロンザジャパン(株)の「BARDAC(バーダック)2170P」)。
ジオクチルジメチルアンモニウムクロライド(例えばロンザジャパン(株)の「BARDAC(バーダック)LF-80」)。
チルアンモニウムカーボネート(例えばロンザジャパン(株)の「Carboquat(コーボクオート)」)、ジデシルメチルポリオキシエチレンアンモニウムプロピネート(例えばロンザジャパン(株)の「BARDAP(バーダップ)26」)。
アルキルベンジルイミダゾリウム塩(例えばロンザジャパン(株)の「UNIQUAT(ユニクオート)CB-50」)。
本実施例においては、珪酸ソーダ(富士化学工業(株)製の1号珪酸ソーダ)300gに水(例えば水道水)660gを加え、攪拌しながら低分子親水性有機化合物としてのクエン酸30gと界面活性剤(ライオン(株)製の商品名「チャーミーVクイック」)10gを添加し、30重量部(wt%)の珪酸ソーダと、3重量部(wt%)のクエン酸の低分子親水性有機化合物とを主成分とする透明溶液(原液)の親水性コート剤1kgを得た。また、同様にして、低分子親水性有機化合物を全く加えない親水性コート剤(珪酸ソーダと界面活性剤のみの親水性コート剤)、低分子親水性有機化合物として0.5重量部(wt%)のクエン酸を含有した親水性コート剤、低分子親水性有機化合物として3重量部(wt%)、0.5重量部(wt%)のグルコン酸を含有した親水性コート剤、低分子親水性有機化合物として3重量部(wt%)の酢酸、グリシン、ジエタノールアミンそれぞれを含有した原液の親水性コート剤も得た。
本実施例においては、珪酸ソーダ(富士化学工業(株)製の1号珪酸ソーダ)300gに水660gを加え、攪拌しながら低分子親水性有機化合物としてのクエン酸(キシダ化学(株)製の無水クエン酸)30gおよび、後述する増粘剤(または金属イオン化合物としての塩化アルミニウムと増粘剤)、界面活性剤を添加して、30重量部(wt%)の珪酸ソーダと、3重量部(wt%)のクエン酸の低分子親水性有機化合物とを主成分とし、さらに、0.1~0.6重量部(wt%)の増粘剤、必要に応じて0.1重量部(wt%)の塩化アルミニウム、を添加した透明溶液(原液)の親水性コート剤1kgを得た。
本実施例においては、珪酸ソーダ(富士化学工業(株)製の1号珪酸ソーダ)300gに水660gを加え、攪拌しながら低分子親水性有機化合物としてのクエン酸(キシダ化学(株)製の無水クエン酸)30g、増粘剤(キサンタンガム(ユングブンツウラーAG社製のキサンタンガムFJグレード)3g、又は、カルボキシビニルポリマー(日光ケミカルズ(株)製の商品名「カーボポールETD2050」)6g、又は、グアーガム(MRCポリサッカライド(株)製の精製グアーガム)3g、界面活性剤(ライオン(株)製の商品名「チャーミーVクイック」)10gを添加して透明溶液1kgを得た。さらに、この透明溶液に四級アンモニウム塩有機化合物(抗菌剤)(ロンザジャパン(株)のBARDAC(バーダック)2280、又は、同社のCarboquat(コーボクオート)、又は、同社のBARDAP(バーダップ)26)0.15gを添加した。これにより、30重量部(wt%)の珪酸ソーダと、3重量部(wt%)のクエン酸の低分子親水性有機化合物とを主成分とし、さらに、0.3~0.6重量部(wt%)の増粘剤および0.005~0.015重量部(wt%)の四級アンモニウム塩有機化合物(抗菌剤)を添加した透明溶液(原液)の親水性コート剤1kgを得た。
Claims (5)
- 1~70重量部の珪酸ソーダ[Na2O・2(SiO2)]と、0.5~30重量部の低分子親水性有機化合物を主成分とする水溶液からなり、
前記低分子親水性有機化合物は、少なくともカルボン酸基、カルボン酸塩基、ヒドロキシ基、アミド基、アミノ基、アンモニウム塩基の一つを有し、炭素数が1~18の親水性化有機合物であることを特徴とする親水性コート剤。 - 請求項1記載の親水性コート剤において、
さらに、少なくともカルボン酸基、ヒドロキシ基、リン酸基、硫酸基、アミド基またはアミノ基の一つを有する増粘剤を0.1~15重量部の増粘剤を含有することを特徴とする親水性コート剤。 - 請求項2記載の親水性コート剤において、
さらに、前記珪酸ソーダと反応して増粘性を発揮させるとともに、前記増粘剤と反応してさらなる増粘効果を発揮させる金属イオン化合物を0.1~15重量部含有することを特徴とする親水性コート剤。 - 請求項1~3のいずれかに記載の親水性コート剤において、
さらに、四級アンモニウム塩有機化合物を0.005~1重量部含有することを特徴とする親水性コート剤。 - 請求項1~4のいずれかに記載の親水性コート剤を水で希釈した希釈液を、農業用フィルム、農業用ガラス、家屋外壁等のコーティング対象物の少なくとも片面に塗布することを特徴とする親水性コート剤の使用方法。
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KR101655991B1 (ko) | 2016-05-13 | 2016-09-09 | 주식회사 리폼테크 | 애자용 코팅장치 |
CN108835705A (zh) * | 2018-08-29 | 2018-11-20 | 佛山市森昂生物科技有限公司 | 一种高防潮型烟草保润剂材料的制备方法 |
CN110978701A (zh) * | 2019-11-21 | 2020-04-10 | 徐蕾 | 一种青苔抑制薄膜、多层青苔抑制薄膜及其制备方法 |
KR20220161632A (ko) | 2021-05-28 | 2022-12-07 | 주식회사 유니온바이오테크 | 벤토나이트를 사용한 무적 직조필름 |
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JPS62235477A (ja) * | 1986-04-03 | 1987-10-15 | Showa Alum Corp | アルミニウムの親水性皮膜形成剤 |
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GB2385856A (en) * | 2002-01-15 | 2003-09-03 | Hubdean Ltd | Water-based, fire retarding coating composition |
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- 2010-07-13 JP JP2010158385A patent/JP4787907B2/ja not_active Expired - Fee Related
- 2010-07-20 CN CN2010800304986A patent/CN102471666A/zh active Pending
- 2010-07-20 KR KR1020117025282A patent/KR20120060778A/ko not_active Application Discontinuation
- 2010-07-20 WO PCT/JP2010/004645 patent/WO2011024378A1/ja active Application Filing
- 2010-08-20 TW TW099127882A patent/TW201120201A/zh unknown
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JPS60101156A (ja) * | 1983-11-07 | 1985-06-05 | Sanyo Chem Ind Ltd | アルミニウム製熱交換器またはそのフイン材用親水性皮膜形成剤 |
JPS62227968A (ja) * | 1986-03-28 | 1987-10-06 | Usui Internatl Ind Co Ltd | 耐熱耐食性塗料 |
JPH0381139A (ja) * | 1989-08-24 | 1991-04-05 | Showa Alum Corp | 熱交換器用アルミニウム・フィン材 |
WO2000053689A1 (fr) * | 1999-03-09 | 2000-09-14 | Toto Ltd. | Element hydrophile, son procede de preparation, agent de revetement et appareil de preparation |
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CN102471666A (zh) | 2012-05-23 |
KR20120060778A (ko) | 2012-06-12 |
JP4787907B2 (ja) | 2011-10-05 |
TW201120201A (en) | 2011-06-16 |
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