WO2003039855A1 - Article recouvert d'un film et article fonctionnel recouvert d'un film utilisant celui-ci - Google Patents
Article recouvert d'un film et article fonctionnel recouvert d'un film utilisant celui-ci Download PDFInfo
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- WO2003039855A1 WO2003039855A1 PCT/JP2002/011637 JP0211637W WO03039855A1 WO 2003039855 A1 WO2003039855 A1 WO 2003039855A1 JP 0211637 W JP0211637 W JP 0211637W WO 03039855 A1 WO03039855 A1 WO 03039855A1
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- film
- solution
- water
- coated article
- substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/1033—Laminated safety glass or glazing containing temporary protective coatings or layers
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/42—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating of an organic material and at least one non-metal coating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/42—Coatings comprising at least one inhomogeneous layer consisting of particles only
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/76—Hydrophobic and oleophobic coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/77—Coatings having a rough surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/114—Deposition methods from solutions or suspensions by brushing, pouring or doctorblading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12389—All metal or with adjacent metals having variation in thickness
- Y10T428/12396—Discontinuous surface component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12479—Porous [e.g., foamed, spongy, cracked, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31—Surface property or characteristic of web, sheet or block
Definitions
- the present invention relates to a coated article coated with a coating mainly composed of silicon oxide having fine irregularities, a method for producing the coated article, and a coating solution used for the same.
- the present invention is useful for a film mainly composed of silicon oxide formed by a sol-gel method.
- the present invention also relates to a functional film-coated article and a method for producing the same.
- the present invention relates to a water-repellent film-coated article or an antifouling film-coated article using a base film mainly composed of silicon oxide having fine irregularities.
- the wettability of a solid surface is affected by the surface roughness. That is, when the solid surface is hydrophilic, the hydrophilicity of the rough surface is improved, and when the solid surface is hydrophobic, the water repellency of the rough surface is improved. This phenomenon is prominent when the surface has a fractal structure, and as a result, it is said that the fractal surface can become a surface called superhydrophobic or superhydrophilic depending on the material. Note that a water repellent state in which the contact angle of water exceeds 150 degrees is generally called super water repellency. In addition, a state of hydrophilicity that makes it difficult to measure the contact angle with water is called superhydrophilicity.
- Japanese Patent Application Laid-Open No. Hei 6-25449 discloses a method in which fine projections are formed on the surface of a plastic film by plasma treatment, and then a fluorinated compound is chemically adsorbed.
- Japanese Patent Application Laid-Open No. 11-286784 discloses that a treatment liquid containing a polycondensate of a metal alkoxide, metal oxide fine particles, and a silane compound having a fluoroalkyl group is applied to a glass surface and dried. A method for forming a fine uneven structure on the surface is disclosed.
- Japanese Patent Application Laid-Open No. 2000-144116 discloses a water-repellent film that forms irregularities on the surface by applying a coating solution containing a polycondensate of trialkoxysilane onto a substrate and heat-treating the coating solution. I have.
- Japanese Patent Application Laid-Open No. 2001-179907 discloses a method of applying a solution containing an aluminum compound to a substrate to form a film, and immersing the film in warm water to form fine irregularities on the surface. It has been disclosed.
- Japanese Patent Application Laid-Open No. 2001-207713 discloses that metal alkoxides, which are separated from these in a solvent, decompose, burn, and sublime at a temperature from room temperature to 700 ° C. There is disclosed a method of forming a microporous layer having an average pore diameter of 100 nm to 2 by applying a solution in which a substance having the following formula is added to a solvent to a substrate and subjecting the solution to heat treatment.
- the more the unevenness is formed on the surface and the greater the roughness of the surface the greater the water contact angle.
- the contact angle exceeds 150 degrees, the water droplets exhibit super water repellency that makes it difficult for water droplets to stay on the surface. It is said that in order to exhibit such super water repellency, a shape that can hold a large amount of air between surface irregularities and water droplets is required.
- the present invention provides a film-coated article coated with a film containing silicon oxide as a main component, which has a non-conventional uneven shape as a microscopic unevenness serving as a foundation for superhydrophobicity or superhydrophilicity, a method for producing the same, And a coating solution used for the same. Furthermore, the present invention provides a method for producing a film-coated article containing a silicon oxide as a main component without essentially requiring a firing step.
- the present invention also provides a functional film-coated article using a base film containing silicon oxide as a main component and having both fine irregularities and transparency. Further, the present invention does not impair the function of the underlying film mainly composed of silicon oxide having fine irregularities, Provided is a method for producing a functional film-coated article characterized by applying a functional film on the underlayer.
- the film-coated article of the present invention comprises a substrate, and a film mainly composed of silicon. Oxide formed on the surface of the substrate. And a columnar projection formed by locally growing a plurality of fine particles constituting the above-mentioned minute projections locally formed in the thickness direction.
- the local growth of the microprojections preferably reaches a height of at least twice, and preferably at least three times the average height of the microprojections.
- the term “locally” is used as a term meaning, specifically, a ratio occupying 50% or less of the area of the surface of the film.
- a more preferable value of the area ratio can be alternatively expressed by a balance between two contradictory characteristics (a balance between a surface roughness equal to or more than a predetermined value and a haze value equal to or less than a predetermined value).
- main component is used as a term meaning a component occupying 50% by weight or more.
- the method for producing a film-coated article of the present invention is a method for producing a film-coated article comprising a base material and a film containing silicon oxide as a main component formed on the surface of the base material.
- the substrate is wetted with the solution while the columnar protrusions are formed on the surface by abnormal growth or the fine particles constituting the fine protrusions are locally laminated on the surface. And a step of maintaining.
- the present invention provides a functional film-coated article and a method for producing the same.
- the functional film-coated article of the present invention comprises a surface of the film of the film-coated article.
- a functional film for example, a water repellent film or an antifouling film is formed.
- the method for producing a functional film-coated article of the present invention comprises the steps of the above-described production method, and further comprising, as a base film, a functional film, for example, a water-repellent film or an antifouling film.
- a step of applying a solution for forming a conductive film is described.
- the present invention provides a coating solution for forming a film.
- the coating solution for forming a film according to the present invention is characterized by containing a solvent containing silicone oil as a main component and a chlorosilyl group-containing compound dissolved in the solvent.
- FIG. 1 is a view showing a state in which a film containing silicon oxide as a main component obtained in Example 11-11 was observed with a scanning electron microscope (SEM).
- SEM scanning electron microscope
- FIG. 2 is a diagram showing a state in which the film containing silicon oxide as a main component obtained in Example 19-19 was observed with a scanning electron microscope (SEM).
- FIGS. 3A to 3D are schematic diagrams illustrating the mechanism of the formation of minute irregularities.
- the film in the film-coated article of the present invention has fine irregularities, and these irregularities are basically fine projections (particulate projections) and heights measured from the surface of the substrate rather than the particulate projections.
- the columnar projections composed of high columnar projections are, for example, integral projections, that is, projections formed by abnormal growth of fine particles in the thickness direction of the film.
- the columnar protrusion may be configured by overlapping fine particles.
- the number and form of the lamination of the fine particles are not particularly limited, but protrusions formed by laminating two or more fine particles in the thickness direction of the coating project from the surroundings. It is preferable that a linked body in the thickness direction of the film of three or more fine particles surrounded by fine protrusions corresponding to the height of the fine particles forms a columnar protrusion. No.
- D c and H may be values measured by SEM.
- D c is preferably from 10 nm to 200 nm.
- the preferred range of H depends on the value of D c, but is usually 50 nm or more.
- an integral projection and a projection formed by laminating fine particles may be mixed as columnar projections.
- small projections exist around the columnar projections.
- the diameter Dp of the microprojections is preferably from 5 nm to 200 nm.
- the surface roughness of the film is preferably at least 10 nm in arithmetic average roughness (Ra), and the haze value of the film is preferably 1% or less.
- Ra arithmetic average roughness
- the contact angle of water measured by dropping 1 mg of water droplets on the surface of the film can be set to 5 degrees or less.
- the functional film further laminated on this film is a water repellent film or an antifouling film.
- the water repellency and the antifouling property can be realized by the same film, for example, a film containing fluorine (the water repellent film in the present specification may have the antifouling property, and vice versa). May be).
- water-repellent film is an organic film containing a fluoroalkyl group.
- antifouling film is an organic film containing a polyalkyleneoxy group.
- the functional film is a water-repellent film, and the contact angle of water measured by dropping 2 mg of water droplets on the surface of the film is 150 ° or more. Is also possible.
- a compound containing a silyl group is preferably used as a silicon-containing raw material.
- concentration of the chlorosilyl group-containing compound in the solution is preferably from 0.01 to 10% by mass.
- the chlorosilyl group-containing compound for example, tetrachlorosilane can be used.
- the solvent of this solution is preferably a non-aqueous solvent, for example, a non-aqueous solvent containing silicone oil, and more specifically, a solvent containing silicone oil as a main component may be used.
- the silicone oil is not particularly limited.
- dimethyl silicone oil may be used.
- the water content in a non-aqueous solvent, for example, a solvent containing silicone oil as a main component, is preferably limited to 0.03% by mass or less.
- the coating solution containing the silicon-containing raw material is applied to the surface of the base material, is maintained in a state where the base material surface is wet for a predetermined time, and is removed from the base material surface as necessary, and as a result, columnar projections are formed.
- a concavo-convex shape is realized.
- the state of wetting the substrate surface depends on other conditions, but is preferably 1 second or more, more preferably 5 seconds or more, especially 10 seconds or more, and especially preferably 1 minute or more.
- particulate nuclei formed on the surface of the base material are formed, and these nuclei grow into columnar protrusions.
- a plurality of particles generated in the solution adhere to the substrate in a state of being stacked on each other, and constitute at least a part of the columnar protrusion.
- the application of the solution may be performed at room temperature.
- the preferable environment in the coating step is, for example, a temperature of 10 to 40 ° C. and a relative humidity (RH) of 15 to 60%. At least temperature and R H should be controlled because they have a significant effect on the texture of the coating.
- a conventionally used method can be applied without any particular limitation, but a solution for forming this functional film can be applied to the above-mentioned base film without mechanical contact.
- a solution for forming this functional film can be applied to the above-mentioned base film without mechanical contact.
- “Mechanical connection “Touch” refers to the direct contact between the device that applies the solution and the membrane.
- a coating solution for forming a base film may be applied to the surface of the base material, and a solution for forming a functional film may be applied in a state where the base surface is wet with the coating solution.
- a solution for forming the functional film for example, a solution containing a fluoroalkyl group-containing compound or a solution containing a polyalkyleneoxy group-containing compound may be used depending on the target film.
- fine particulate projections are formed on the surface of a film containing silicon oxide, for example, silica as a main component.
- the columnar projections are formed by growing the particles constituting the particulate projections so as to overlap each other, or by growing them integrally from the ground surface.
- the durability is superior to conventional super water-repellent articles in the sense that the water repellency is maintained even if the super water repellency is lost.
- the haze value can be kept low. For this reason, it is easy to achieve both the fine uneven structure which is the foundation of superhydrophobicity and superhydrophilicity and the transparency of the film. Since columnar projections are naturally grown, they are not necessarily formed only in the vertical direction to the substrate surface, but some may bend from the middle in the vertical direction or grow obliquely from the beginning. However, there is no problem with these shapes.
- a coating solution is applied to the surface of a substrate, and the solution ′ may be forcibly or spontaneously dried.
- the surface roughness of the film is at least 10 nm in arithmetic mean roughness (R a), and the haze value of the film is preferably 1.0% or less, and more preferably 0.5% or less. More preferred.
- the film containing silicon oxide as a main component is hydrophilic, the film according to the present invention basically exhibits superhydrophilicity in combination with a minute uneven structure.
- This film contains silicon oxide as a main component, and may further contain other components such as titanium oxide, aluminum oxide, and zirconium oxide.
- a method for producing a film containing silicon oxide as a main component is described as a solution in which a chlorosilyl group-containing compound is dissolved in a solvent containing silicone oil as a main component.
- An example is described below in which is applied to the surface of a base material (see Fig. 3).
- the chlorosilyl group-containing compound is dissolved in the solvent in a state where the chloro group is retained.
- the chlorosilyl group-containing compound When this solution 2 is applied to the surface of the substrate 1, the chlorosilyl group-containing compound is bonded to the hydrophilic groups (1OH group) on the surface of the substrate during the application. Further, the chlorosilyl group-containing compound is bound to the surface of the base material through hydrolysis and condensation polymerization reaction with moisture in the air and water adsorbed on the surface of the base material. In this way, sparse particulate nuclei 3 are formed on the substrate surface (Fig. 3A).
- the chlorosilyl group-containing compound undergoes condensation polymerization reaction from hydrolysis in water in the air, and a silicon oxide oligomer is generated.
- the oligomer grows to a size that is difficult to dissolve in the solvent, it begins to precipitate from the solvent, and the precipitated oligomer 4 deposits on the glass surface and grows as projections (Fig. 3B).
- the chlorosilyl group-containing compound 5 is bonded.
- the oligomer 6 before the deposition is also bound to the Si—C1 group and the Si—OH group on the uneven surface, and protrusions grow from the substrate side (Fig. 3C).
- columnar projections 7 are formed on the surface of substrate 1 together with particulate projections 8 (FIG. 3D).
- the nuclei are concentrated on nuclei formed immediately after coating, and the nuclei grow into columnar projections.
- the difference between the shape formed integrally from the substrate surface and the shape formed by overlapping the particles is the difference between the amount of deposited oligomers deposited and the amount of dissolved raw materials directly deposited on the substrate surface. It is thought to be due to the influence of the ratio, the density of nuclei formed immediately after coating, and the like.
- the formation of the film involves the formation of the oligomer, It is considered that the reaction and the solubility of the oligomer in the solvent have a strong effect.
- the silicon-containing raw material is not particularly limited as long as it is capable of forming a silicon oxide-containing oligomer and has high reactivity with the base material and is soluble in a solvent.
- the group is preferably used because it shows a very strong reaction with a hydrophilic group (mono-OH group) on the surface of a water-based substrate.
- the solvent is preferably one which does not suppress the reactivity of the raw material (solute) and hardly dissolves the formed oligomer.
- an aqueous solvent is not preferred because the chlorosilyl group-containing compound reacts with water.
- Non-aqueous solvents can be used as a solvent capable of retaining a highly reactive dye group as it is, and among them, a solvent containing silicone oil as a main component is preferably used.
- a chlorosilyl group-containing compound was dissolved in isoparaffinic hydrocarbon and applied to the substrate surface. Then, although the obtained film had some irregularities, it did not form up to the columnar projections. For this reason, this film did not show superhydrophilicity. This is presumed to be due to the difference in water absorption among non-aqueous solvents.
- the water content of the solvent measured at this time was 0.035% by mass, and the water content in the solvent containing silicone oil as a main component in the present invention is preferably not more than 0.03% by mass. I understood that. This can be presumed to be due to the fact that the chlorosilyl group-containing compound undergoes hydrolysis and polycondensation reaction with the water in the solvent, and the oligomerization progressed in the solution.
- the solution is applied to the surface of the substrate, and then at least the surface of the substrate must be wet with the solution for 1 second, and then wet for at least 1 minute Is more preferable.
- the chlorosilyl group-containing compound is not sufficiently adsorbed on the substrate surface, so that a film having a fine uneven structure serving as a foundation for superhydrophobicity and superhydrophilicity cannot be obtained.
- the solution is once applied to the substrate surface and wetted, and then the same solution is applied repeatedly. If the solution is supplied in two or more parts, the total time that the substrate is wet with the solution is more than a predetermined time, for example, It is advisable to supply the next solution before the first solution is completely dried, so that for at least 1 second.
- the concentration of the chlorosilyl group-containing compound varies depending on the application method, but is preferably from 0.1 to 10% by mass, more preferably from 0.1 to 3% by mass.
- the concentration of the chlorosilyl group-containing compound is too high, the film becomes thick and becomes a white powder, which is not preferable.
- the concentration of the chlorosilyl group-containing compound is too low, a film having a sufficient thickness cannot be obtained. For this reason, it is not preferable because it is not possible to form a fine uneven structure serving as a foundation for superhydrophobicity or superhydrophilicity.
- the application method requires that the coating solution is uniformly wetted on the substrate surface, and after application, there is no mechanical contact with the substrate surface and the coating solution remains wet on the substrate surface. It is preferable to be maintained in a state.
- the method include a flow coating method, a dip coating method, a curtain coating method, a spin coating method, a spray coating method, a bar coating method, and an immersion adsorption method.
- the flow coating method and the spray coating method are preferable.
- chlorosilyl group-containing compound chlorosilyl group (- S i C 1 n X 3 - n> where n is 1, 2 or 3,, X is hydrogen or an alkyl group of each carbon number, 1 to 1 0 , An alkoxy group, or an acyloxy group) in the molecule.
- a compound having at least two chlorines is preferable, and at least two hydrogens in the silane Si n H 2n +2 (where n is an integer of 1 to 5) are substituted with chlorine; Chlorosilane in which other hydrogen is optionally substituted with a self-alkyl group, an alkoxy group, or an acyloxy group, and a portion thereof Hydrolysates and polycondensates thereof are preferred.
- tetrachlorosilane (S i C 1 4), trichlorosilane (S i HC 1 3) trichloroacetic port monomethyl silane (S i CH 3 C l 3 ), dichloro Roshiran (S i H 2 C l 2 ) and CI - ( S i C l 2 0) n —S i C l 3 (n is an integer of 1 to 10).
- a single compound or a combination of two or more compounds can be used, but the most preferred chlorosilyl group-containing compound is tetrachlorosilane.
- the solvent containing silicone oil as a main component is composed of linear, Z-, or cyclic dimethyl silicone oil.
- hexanemethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and the like can be mentioned. In addition, from these, they can be used alone or in combination.
- the environment of the coating process is preferably a temperature of 10 to 40 ° C and a relative humidity (RH) of 15 to 60%, and a temperature of 15 to 25 and a relative humidity (RH) of 20%. ⁇ 40% is more preferred.
- RH relative humidity
- RH relative humidity
- the humidity is too high, the size of the protrusions becomes large, so that the transparency of the formed film is impaired.
- the temperature is too high, the solution applied to the surface of the base material dries quickly, and it becomes difficult to keep the state in which the surface of the base material is wet with the solution.
- the substrate is not particularly limited, but those having a hydrophilic group on the surface of the substrate are preferably used. Specific examples include glass, ceramics, resin, and metal.
- the surface of these substrates has few hydrophilic groups, the surface can be made hydrophilic by previously treating the surface with oxygen-containing plasma or corona atmosphere. Good.
- the surface of the substrate may be irradiated with ultraviolet light having a wavelength of about 200 to 300 nm in an atmosphere containing oxygen to perform a hydrophilic treatment, and then apply the solution.
- the water-repellent liquid that can be applied is not particularly limited as long as it contains a water-repellent material that binds to the substrate surface.
- a form in which a water-repellent material is used as a solution in a solvent is preferable.
- Examples of the water-repellent group exhibiting a water-repellent function include a fluoroalkyl group and an alkyl group.
- a silane compound containing such a fluoroalkyl group or an alkyl group and containing a hydrolyzable group compatible with a chlorosilyl group-containing compound formed in advance on the surface of the base material is preferable.
- the hydrolyzable group include an alkoxy group, an acyloxy group, and a chlorine group. It is also possible to use a hydrolyzate obtained by partially hydrolyzing these silane compounds containing a hydrolyzable group or a polymer obtained by condensation polymerization. Among them, a silane compound containing a fluoroalkyl group having high water repellency is more preferable.
- the fluoroalkyl group-containing silane compound is a silane compound containing a fluoroalkyl group and containing an alkoxy group, an acyloxy group, or a chlorine group.
- CF 3 (CF 2) 5 (CH 2) 2 S i C 1 3, etc. can be exemplified. Among these, they can be used alone or in combination of two or more, but CF 3 (CF 2 ) 7 (CH 2 ) 2 S i C, which has particularly high reactivity and water repellency
- the solvent for dissolving the water-repellent material is not particularly limited, but the chlorosilyl group-containing compound formed first on the substrate surface is a solvent containing silicone oil as a main component. Is dissolved and applied. Therefore, the water repellent to be applied thereafter is also preferably a non-aqueous solvent of the same system.
- non-aqueous solvent examples include paraffin-based hydrocarbons, fluorocarbon-based solvents, and solvents containing silicone oil as a main component.
- solvents containing silicone oil as a main component examples include paraffin-based hydrocarbons, fluorocarbon-based solvents, and solvents containing silicone oil as a main component.
- the chlorosilyl group-containing compound to be formed first on the base material surface is dissolved.
- Solvents containing the same silicone oil as the main component as the solvent are preferred.
- the method of applying the water-repellent liquid requires a method that does not break the surface shape of the previously formed uneven film, and specifically, a method of adsorbing the same as the previously formed chlorosilyl group-containing compound. Is preferred.
- the water-repellent liquid In order to adsorb the water-repellent liquid, it is necessary that the water-repellent liquid wets the substrate surface for at least 0.1 second after the application of the water-repellent liquid.
- the water-repellent liquid is different from the chlorosilyl group-containing compound on which the uneven film is formed first, and only the water-repellent material needs to be bonded to the liquid-repellent liquid. It may be shorter than the time for natural adsorption lamination.
- the time is less than 0.1 second, the water-repellent material is not sufficiently adsorbed, so that sufficient water-repellency cannot be exhibited.
- the functional film As a method of applying the functional film, it is preferable to apply a functional film forming solution while avoiding mechanical contact with the underlying film so as not to break the minute unevenness of the underlying film formed earlier.
- Specific examples of the method include a flow coating method, a dip coating method, a force coating method, a spin coating method, a spray coating method, a bar coating method, and an immersion adsorption method.
- the flow coating method and the spray coating method are preferred.
- An antifouling film may be formed as the functional film.
- the antifouling film is preferably an organic film containing a polyalkyleneoxy group.
- the film of the present invention containing silicon oxide as a main component is characterized by having low reflectivity due to its low refractive index and surface unevenness. By using this film, the reflectance measured from the film side can be lower than before the film was formed.
- silicon as used is not strictly present in the form of S i 0 2, is simply meant a silicon oxide.
- Tetrachlorosilane the (S i C l 4 Etsu Silicone) 0 5 g, decamethylcyclopentasiloxane pen evening siloxane..: Was added with stirring to (KF 9 9 5 Etsu Silicone Co.) 9 9 5 g, irregularities
- a solution for coating a silica film to be formed was obtained.
- a soda lime glass plate by a float method was used as a glass substrate.
- a coating solution for the silicon film to form the irregularities is applied on the surface of the washed glass substrate by a flow coating method at a relative humidity of 30% and room temperature, and the glass substrate surface is wetted with the solution for 1 minute. It was left standing. Further, the same solution was again applied thereon by the flow coating method, and the glass substrate surface was left standing with the solution wet for 1 minute. After that, the silica film coating solution for forming irregularities on the glass substrate surface was completely washed away with ethanol, and dried naturally to obtain a silica film-coated glass plate having irregularities.
- the columnar protrusions have a shape in which the fine particles grow abnormally in the direction of the film thickness, specifically, more than twice or even three times the average height of the fine protrusions due to the fine particles.
- the columnar projections are formed in an area of less than half of the entire area, and the remaining small projections are present.
- the height H from the substrate is three times or more the average diameter Dc.
- H, Dc, and the diameter Dp of the microprojections were within the above preferred ranges.
- the average values of Dp and Dc were both in the range of 20 nm to 100 nm.
- the surface roughness of the glass plate coated with the silica film having irregularities can be calculated by using an atomic force microscope (AFM, “SPI370”, manufactured by Seiko Denshi Co., Ltd.) in a cyclic contact mode. The average roughness Ra was measured. The greater the value of Ra, the greater the roughness of the coating surface.
- the hydrophilicity of the glass plate coated with the silica film having irregularities was evaluated by the contact angle of water. Using a contact angle meter (“CA-DT”, manufactured by Kyowa Interface Science Co., Ltd.), a 1 mg water drop was dropped on the surface of the glass plate, and the static contact angle was measured. The smaller the value of the contact angle, the better the hydrophilicity.
- the transparency of the glass plate coated with a silica film having irregularities was evaluated by a haze value.
- the haze value was measured using a direct reading haze computer (“HGM-2DM”, manufactured by Suga Test Instruments Co., Ltd.). The smaller the haze value, the higher the transparency of the film.
- the method for forming a film containing silica as a main component according to the present invention requires only natural drying, and does not particularly require a firing step.
- Example 11 A solution for coating a silica film for forming irregularities adjusted in the same manner as in Example 11 was applied on a surface of a washed glass substrate by a flow coating method at a relative humidity of 30% and a room temperature. The glass substrate surface was allowed to stand for 1 minute while the surface of the glass substrate was wet with this solution. After that, the silica film coating solution for forming the irregularities on the surface of the glass substrate was completely washed away with ethanol and dried naturally to obtain a silica film-coated glass plate having irregularities.
- Example 11 A solution for coating a silica film for forming irregularities adjusted in the same manner as in Example 11 was applied on a surface of a washed glass substrate by a flow coating method at a relative humidity of 30% and a room temperature. The glass substrate surface was left standing with the solution wet for 10 seconds. Thereafter, the solution for coating the silica film for forming irregularities on the surface of the glass substrate was completely washed away with ethanol, followed by natural drying to obtain a silica film-coated glass plate having irregularities.
- Example 11 A solution for coating a silica film for forming irregularities adjusted in the same manner as in Example 11 was applied on a surface of a washed glass substrate by a flow coating method at a relative humidity of 30% and a room temperature. Leave the glass substrate surface wet with this solution for 0.5 seconds, apply the same solution on it again by the flow coating method, and leave the glass substrate surface wet with this solution for 0.5 seconds. Was. Thereafter, the solution for covering the silica film for forming the irregularities on the surface of the glass substrate was completely washed away with ethanol, and dried naturally to obtain a silica film-coated glass plate having the irregularities.
- Tetrachlorosilane the (S i C l 4 Etsu Silicone) 0 2 g, decamethylcyclopentasiloxane pen evening siloxane.. -: was added with stirring to (KF 9 9 5 Etsu Silicone Co.) 9 9 8 g, irregularities For coating silica film to be formed A solution was obtained.
- the coating solution for the silica film for forming the irregularities was applied on the surface of the cleaned glass substrate by flow coating at a relative humidity of 30% and room temperature, and the surface of the glass substrate was wet with the solution for 1 minute. It was left still. Further, the same solution was again applied thereon by a flow coat method, and allowed to stand for 1 minute while the surface of the glass substrate was wet with this solution. Thereafter, the coating solution for the silica film, which forms the irregularities on the glass substrate surface, was completely washed away with ethanol, and dried naturally to obtain a silica-coated glass plate having the irregularities.
- Tetrachlorosilane the (S i C 1 4 Etsu Silicone) 1 0 g, decamethylcyclopentasiloxane pen evening siloxane.
- KF 9 9 5 manufactured by Shin-Etsu Silicone 9 9 was added with stirring to 0 g, irregularities A solution for coating a silica film to be formed was obtained.
- the coating solution for the silica film for forming the irregularities was applied on the surface of the cleaned glass substrate by flow coating at a relative humidity of 30% and room temperature, and the surface of the glass substrate was wet with the solution for 1 minute. It was left still. After that, the silica film coating solution for forming irregularities on the surface of the glass substrate was completely washed away with ethanol, and dried naturally to obtain a silica film-coated glass plate having irregularities.
- Example 1-1 Except for having unevenness in the same manner as Example 1-1, except that decamethylcyclopentasiloxane in Example 1-1 was changed to octamethyltrisiloxane (KF-96L-1CS: manufactured by Shin-Etsu Silicone). A silica film-coated glass plate was obtained.
- KF-96L-1CS manufactured by Shin-Etsu Silicone
- Example 11 Solution for coating a silica film to form unevenness adjusted in the same manner as in Example 1
- the solution was applied on the surface of the washed glass substrate by spray coating at a relative humidity of 30% and room temperature, and allowed to stand for 1 minute while the surface of the glass substrate was wet with the solution. Thereafter, the solution for coating the silica film for forming irregularities on the surface of the glass substrate was completely washed away with ethanol, followed by natural drying to obtain a silica film-coated glass plate having irregularities.
- Tetrachlorosilane the (S i C l 4 Etsu Silicone) 2 0 g, decamethylcyclopentasiloxane pen evening siloxane..: Was added with stirring to (KF 9 9 5 Etsu Silicone Co.) 9 8 0 g, irregularities A solution for coating a silica film to be formed was obtained.
- a coating solution for the silica film for forming the unevenness is applied on the surface of the washed glass substrate by a flow coating method at a relative humidity of 30% and room temperature, and the glass substrate surface is wetted with the solution for 5 minutes. The same solution was again applied thereon by the flow coating method, and the glass substrate surface was allowed to stand with the solution wet for 5 minutes. Thereafter, the coating solution for the silicon film forming the irregularities on the surface of the glass substrate was completely washed away with ethanol, and dried naturally to obtain a silica-coated glass sheet having irregularities.
- Example 19 The surface shape of the glass plate coated with a silicon film having irregularities obtained in this manner was observed with a scanning electron microscope under the same conditions as in Example 11 (see FIG. 2, as apparent from the results in FIG. 2, In Example 19, it can be seen that the columnar projections are formed by overlapping particles in the columnar projections. Protruding projections are also included.
- the columnar projections are formed in an area that is less than half of the entire area, and the minute projections are present in the rest.
- the height H from the substrate is more than three times the average diameter Dc.
- H, D c, and The diameter D p of the microprojections was within the above preferred range.
- the average values of Dp and Dc were both in the range of 20 nm to 100 nm.
- Example 11 Example 1 was repeated except that the environment when applying the coating solution for the silica film for forming irregularities adjusted in the same manner as in Example 1 onto the surface of the washed glass substrate was changed to a relative humidity of 20%. In the same manner as in 1-1, a glass plate covered with a silica film having irregularities was obtained.
- Example 11 The same procedure as in Example 1 was carried out except that the environment for applying the coating solution for the silicon force film for forming irregularities adjusted on the surface of the washed glass substrate to 50% relative humidity was changed.
- Example 11 In the same manner as in Example 11, a silica film-coated glass plate having irregularities was obtained.
- Example 1 1 3 1 3 nm ⁇ 5 0.2
- Example 1 1 4 1 4 nm ⁇ 5 0.3
- Example 1 One 5 13 nm ⁇ 5 0.1
- Example 1-6 2 2 nm ⁇ 5 0.4
- Example 1 1 7 1 6 nm ⁇ 5 0.2
- Example 1 1 8 2 1 n m ⁇ 5 0.4
- Example 1-9 24 nm ⁇ 5 0.3
- Example 1 1 1 0 1 5 nm ⁇ 5 0.1
- Example 1 1 1 1 2 7 nm ⁇ 5 0.7
- Example 11 The surface of the glass plate coated with the irregularity film obtained with the irregularities obtained in 11-1 to 11-1 was observed using a scanning electron microscope. It was confirmed that protrusions were formed.
- the surface roughness of the silica film-coated glass plate having irregularities obtained in Examples 1-1 to 1-11 was measured using an atomic force microscope, and Ra was 13 for all the films. It was confirmed that it was nm or more. As a result, the film It was confirmed that the surface roughness was large.
- the wettability of water was observed on the glass plate covered with the silica film having irregularities obtained in Examples 1-1 to 1-11. As a result, it was confirmed that the water droplets spread well on all the films.
- the hydrophilicity of the uneven silica film was evaluated by the contact angle of water. The contact angle was less than about 5 degrees, so that accurate measurements could not be made.
- the film-coated glass plate containing silica as a main component according to the present invention has a film surface reflectance of about 1.6% lower than that of a glass substrate having no coating containing a silicon component as a main component.
- This is considered to be due to the effect of the film composed mainly of silica, which has a lower refractive index than that of the soda lime glass substrate having the refractive index of 1.52, and the surface unevenness of the film.
- Example 2 of the present invention a water-repellent treatment was further applied to the glass plate coated with a silica film having irregularities according to the present invention.
- the water-repellent liquid applicable in the second embodiment is not particularly limited as long as it contains a water-repellent material that binds to the substrate surface.
- a form in which a water-repellent material is used as a solution in a solvent is preferable.
- a compound having a hydrolyzable silyl group compatible with the chlorosilyl group-containing compound previously formed on the substrate surface is preferable, and among them, a silane compound containing a fluoroalkyl group having high water repellency is more preferable.
- the fluoroalkyl group-containing silane compound is a silane compound containing a fluoroalkyl group and containing an alkoxy group, an acyloxy group, or a chlorine group, for example, CF 3 (CF 2 ) 7 (CH 2 ) 2 S i ( OCH 3) 3, CF 3 ( CF 2) 5 (CH 2) 2 S i (OCH 3) 3, CF 3 (CF 2) 7 (CH 2) 2 S i C 1 3, CF 3 (CF 2) 5 (CH 2) 2 S i C 1 3, and the like.
- the solvent for dissolving the water-repellent material is not particularly limited as long as the water-repellent material dissolves.
- the chlorosilyl group-containing compound to be formed on the surface of the base material is first dissolved in a solvent containing silicone and applied. Therefore, the water repellent to be applied thereafter is also preferably a non-aqueous solvent of the same system.
- non-aqueous solvent examples include solvents mainly containing paraffinic hydrocarbons, fluorocarbons, and silicone oils. Among them, solvents that dissolve the chlorosilyl group-containing compound formed first on the base material surface are used. Solvents containing silicone oil as the main component are preferred.
- the method of applying the water-repellent liquid requires a method that does not break the surface shape of the previously formed uneven silica film, and specifically, a method of adsorbing the same as the previously formed chlorosilyl group-containing compound is preferable. .
- the water-repellent liquid In order to adsorb the water-repellent liquid, it is necessary that the water-repellent liquid wets the substrate surface for at least 0.1 second after the application of the water-repellent liquid.
- the water-repellent liquid is different from the chlorosilyl group-containing compound on which the uneven silica film has been formed first, since only one layer of the water-repellent material needs to be bonded. It may be shorter than the time required for natural adsorption lamination on the material surface.
- Examples of a method that enables such adsorption include a flow coating method, a dip coating method, a curtain coating method, a spin coating method, a spray coating method, a vacuum coating method, and an immersion adsorption method.
- a flow coating method and the spray coating method are preferred.
- This water-repellent agent was applied by flow coating at room temperature and a relative humidity of 30% on the surface of the silica film-coated glass plate having the irregularities of Examples 1-1 to 1-11 described above. After leaving the glass substrate surface still for 1 minute with the water-repellent agent wet, the surface water-repellent agent was completely rinsed off with ethanol and air-dried. Each of Examples 2-1 to 2-1-11 A water-repellent glass plate was obtained.
- the water repellency of the obtained water-repellent treated glass plate was evaluated by the contact angle of water.
- a contact angle meter (“CA-DT”, manufactured by Kyowa Interface Science Co., Ltd.)
- CA-DT contact angle meter
- a 2 mg water drop was dropped onto the surface of the glass plate, and the static contact angle was measured. The larger the value of the contact angle, the better the static water repellency.
- the transparency of the film was evaluated by a haze value.
- the haze value was measured using a direct-read haze computer (“HGM-2D M”, manufactured by Suga Test Instruments Co., Ltd.). The smaller the haze value, the higher the transparency of the film.
- the resulting water-repellent treated glass plate was evaluated for its abrasion resistance. Valued.
- abrasion resistance test a dry cloth was attached to a reciprocating abrasion tester (manufactured by Shinto Kagaku Co., Ltd.), and the water-repellent treated glass was slid back and forth 100 times under a load of 125 g / cm 2. Then, the contact angle of water on the water-repellent treated glass was measured under the same conditions as those before the test.
- the contact angles after the abrasion resistance test were 100 ° or more, respectively, and although they did not exhibit super water repellency, they exhibited sufficiently normal water repellency and were confirmed to have excellent abrasion resistance.
- the haze value was almost the same as that of the silica plate coated with a silica film having irregularities obtained in Examples 11 to 11 and the haze value of all the films was 1.0.
- Example 11 Solution for coating a silica film to form unevenness adjusted in the same manner as in Example 1
- the solution was applied on the surface of the washed glass substrate by a flow coating method at a relative humidity of 30% and room temperature, and allowed to stand for 0.5 seconds while keeping the surface of the glass substrate wet with the solution.
- the silica film coating solution for forming the irregularities on the surface of the glass substrate was completely washed away with ethanol, and dried naturally to obtain a silica film-coated glass plate having irregularities.
- Water-repellent treatment was performed on the surface of the glass plate coated with the silica film having irregularities in the same manner as in Examples 2-1 to 2--11 to obtain a water-repellent treated glass plate.
- the obtained water-repellent treated glass plate was evaluated in the same manner as in Examples 2-1 to 2-1-11. Was confirmed.
- Tetrachlorosilane the (S i C l 4 Etsu Silicone) 4 0 g, decamethylcyclopentasiloxane pen evening siloxane.. (KF - 9 9 5 : manufactured by Shin-Etsu Silicone) 9 6 with stirring to 0 g, irregularities A solution for coating a silica film to be formed was obtained.
- the coating solution for the silica film for forming the unevenness was applied on the surface of the washed glass substrate by a flow coating method at a relative humidity of 30% and room temperature, and the glass substrate surface was wetted with the solution for 5 minutes. It was left still. After that, the silica film coating solution for forming irregularities on the surface of the glass substrate was completely washed away with ethanol, and dried naturally to obtain a silica film-coated glass plate having irregularities. Water-repellent treatment was performed on the surface of the silica film-coated glass plate having the irregularities in the same manner as in Examples 2-1 to 2--11 to obtain a water-repellent treated glass plate.
- the obtained water-repellent treated glass plate was evaluated in the same manner as in Examples 2-1 to 2-11, and as a result, the initial contact angle was 123 degrees, and the water-repellency was inferior to that of Example 2. Was confirmed. In addition, the film was partially white powdery, had a haze value of 3.8%, and was poor in transparency. (Comparative Example 3)
- Example 1-1 unevenness was obtained in the same manner as in Example 11 except that decamethylcyclopentylsiloxane was changed to an isoparaffinic hydrocarbon (aisosol 300: manufactured by Nippon Petrochemical Co., Ltd.).
- a silica-coated glass plate having Water-repellent treatment was performed on the surface of the silica film-coated glass plate having the irregularities in the same manner as in Examples 2-1 to 2--11 to obtain a water-repellent treated glass plate.
- the obtained water-repellent treated glass plate was evaluated in the same manner as in Examples 2_1 to 2_11. Was confirmed.
- Example 11 Example 1 was repeated except that the environment for applying the silica film coating solution for forming irregularities adjusted in the same manner as in Example 1 on the surface of the washed glass substrate was changed to a relative humidity of 10%. A silica-coated glass plate having irregularities was obtained in the same manner as in 1.1. Water-repellent treatment was performed on the surface of the silica film-coated glass plate having the irregularities in the same manner as in Examples 2-1 to 2-1-11 to obtain a water-repellent treated glass plate.
- the obtained water-repellent treated glass plate was evaluated in the same manner as in Example 2-1 to 2--11, and as a result, the initial contact angle was 114 °, and the water-repellent performance was inferior to Example 2. Was confirmed.
- the wettability of water was observed on the obtained hydrophilic film with an antifouling function. As a result, it was confirmed that the water droplets were well wet and spread.
- the hydrophilicity was evaluated by the contact angle of water. The contact angle was so low that it could not be measured accurately, and was about 5 degrees or less. This was presumed to be due to the low contact angle of the antifouling film itself, combined with the effect of the unevenness of the previously formed unevenness film, and excellent hydrophilicity.
- Example 11 An antifouling property was evaluated in the same manner as in Example 3 on a glass plate coated with a silica film having 11 irregularities. As a result, it was confirmed that a part of the olive oil remained, and the antifouling performance was inferior to that of Example 3.
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KR10-2003-7017113A KR20040052516A (ko) | 2001-11-08 | 2002-11-08 | 피막 피복 물품, 및 이것을 이용한 기능성 피막 피복 물품 |
EP02802727A EP1449641A4 (en) | 2001-11-08 | 2002-11-08 | COATED COATED ARTICLES AND THESE USE OF COATED FUNCTIONAL ARTICLES COATED WITH COATING COATINGS |
US10/479,142 US7022416B2 (en) | 2001-11-08 | 2002-11-08 | Article coated with coating film, and functional article coated with coating film using the same |
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PCT/JP2002/011637 WO2003039855A1 (fr) | 2001-11-08 | 2002-11-08 | Article recouvert d'un film et article fonctionnel recouvert d'un film utilisant celui-ci |
PCT/JP2002/011638 WO2003039856A1 (fr) | 2001-11-08 | 2002-11-08 | Substrat ultra hydroresistant |
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JP (1) | JP4198598B2 (ja) |
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WO2008072707A1 (ja) | 2006-12-15 | 2008-06-19 | Asahi Glass Company, Limited | 撥水性表面を有する物品 |
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- 2002-11-08 EP EP02802728A patent/EP1449642A4/en not_active Withdrawn
- 2002-11-08 US US10/494,867 patent/US20050008876A1/en not_active Abandoned
- 2002-11-08 WO PCT/JP2002/011637 patent/WO2003039855A1/ja active Application Filing
- 2002-11-08 WO PCT/JP2002/011638 patent/WO2003039856A1/ja active Application Filing
- 2002-11-08 EP EP02802727A patent/EP1449641A4/en not_active Withdrawn
- 2002-11-08 CN CNA028154983A patent/CN1538909A/zh active Pending
- 2002-11-08 KR KR10-2003-7017113A patent/KR20040052516A/ko not_active Application Discontinuation
- 2002-11-08 JP JP2003541725A patent/JP4198598B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN1538909A (zh) | 2004-10-20 |
EP1449641A1 (en) | 2004-08-25 |
JP4198598B2 (ja) | 2008-12-17 |
JPWO2003039856A1 (ja) | 2005-02-24 |
WO2003039856A1 (fr) | 2003-05-15 |
US7022416B2 (en) | 2006-04-04 |
KR20040052516A (ko) | 2004-06-23 |
EP1449642A1 (en) | 2004-08-25 |
EP1449642A4 (en) | 2007-06-13 |
US20040170844A1 (en) | 2004-09-02 |
US20050008876A1 (en) | 2005-01-13 |
EP1449641A4 (en) | 2007-06-13 |
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