WO2005097870A1 - 中空樹脂微粒子、有機・無機ハイブリッド微粒子及び中空樹脂微粒子の製造方法 - Google Patents
中空樹脂微粒子、有機・無機ハイブリッド微粒子及び中空樹脂微粒子の製造方法 Download PDFInfo
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- WO2005097870A1 WO2005097870A1 PCT/JP2005/004688 JP2005004688W WO2005097870A1 WO 2005097870 A1 WO2005097870 A1 WO 2005097870A1 JP 2005004688 W JP2005004688 W JP 2005004688W WO 2005097870 A1 WO2005097870 A1 WO 2005097870A1
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- fine particles
- resin fine
- reaction component
- hollow resin
- lipophilic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G85/00—General processes for preparing compounds provided for in this subclass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
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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
- C09D7/65—Additives macromolecular
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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
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
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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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
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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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
Definitions
- the present invention provides an anti-reflection layer having excellent dispersibility in one component of a binder, preventing irregular reflection of light, and having high alkali resistance when used as fine particles constituting a low-refractive-index anti-reflection layer.
- the present invention relates to hollow resin fine particles, organic / inorganic hybrid fine particles, and a method for producing hollow resin fine particles, which can obtain the following.
- Liquid crystal displays used for personal computers, word processors, mobile phones and the like, and various other commercial displays are used in an extremely wide range of fields. These displays use transparent substrates such as glass and plastic, and through these transparent substrates, visual information such as objects, characters, and figures is recognized.
- a practical problem of these displays is that visibility is deteriorated due to reflection on the display surface.
- incident light such as external light is reflected on the surface of the transparent substrate, making it difficult to see the internal visual information. Become.
- a method for preventing such reflection from the transparent substrate for example, there is a method in which a coating layer having an uneven surface is formed on the surface of the transparent substrate, and external light is irregularly reflected by the unevenness on the surface.
- Patent Document 1 discloses that a silica dispersion is mixed in a silicate-based coating agent prepared by a sol-gel method, and the mixture is applied to a glass substrate and baked. An antireflection film having irregularities due to aggregates is disclosed.
- an intermediate layer mainly composed of a resin is formed on a transparent base film, and a coating liquid containing organic ultrafine particles having a refractive index of 1.45 or less is applied on the intermediate layer.
- a coating liquid containing organic ultrafine particles having a refractive index of 1.45 or less is applied on the intermediate layer.
- an antireflection film having an outermost surface layer of irregularities in which the surface of the organic ultrafine particles is formed is disclosed.
- the method of irregularly reflecting external light by forming irregularities on the surface reduces the apparent glare, but does not reduce the amount of reflected light as a whole, and causes the whole to become whitish. was there.
- dirt such as fingerprints, sebum, sweat, cosmetics, etc. adheres to the surface irregularities, and it is not easy to remove the dirt once adhered due to the fine irregularities.
- silicon-based or fluorine-based materials have been used. Since these materials generally have poor adhesion to a transparent substrate, for example,
- Patent Document 3 discloses a low-refractive-index coating agent in which hollow silica particles are blended with an organic silicon compound polymer having a certain structure as a binder, and an antireflection film using the low-refractive-index coating agent. It is disclosed.
- an inorganic organic silicon compound polymer or the like was used as a binder component of the low refractive index coating agent, the obtained coating layer was brittle and lacked mechanical strength.
- an organic binder such as transparent resin as the binder component of the low refractive index coating agent, a coating layer having excellent film forming properties and excellent mechanical strength can be obtained.
- dispersibility in inorganic binder components such as silicon compounds is good, dispersibility in organic resins such as transparent resin is poor as long as silica fine particles are used. Therefore, it has been difficult to use a transparent resin having excellent film-forming properties and excellent mechanical strength as a binder.
- Hollow resin fine particles having a porosity of a certain value or more as fine particles having a low refractive index have been studied.
- Hollow resin fine particles are suitable for alkali resistance and binder.
- the reflection of the transparent substrate can be suppressed efficiently, and an antireflection film with excellent mechanical strength that is resistant to dirt and washing can be obtained. It is expected to be.
- Patent Documents 4 and 5 disclose a method of forming a core-shell type polymer by emulsion polymerization and treating with a base or a base and an acid. To produce polymer particles having pores therein.
- Patent Documents 6 and 7 disclose methods for producing hollow resin fine particles by radical polymerization.
- Patent Document 8 discloses a method for producing hollow resin fine particles by seed polymerization.
- Patent Documents 9, 10 and 11 disclose methods for producing microcapsules having a shell obtained by an interfacial reaction.
- Patent document 1 JP-A-9-101518
- Patent Document 2 JP-A-7-092305
- Patent Document 3 Japanese Patent Application Laid-Open No. 2002-317152
- Patent Document 4 JP-A-1 185311
- Patent Document 5 JP-A-6-248012
- Patent Document 6 JP-A-2-255704
- Patent Document 7 Japanese Patent Publication No. 5-040770
- Patent Document 8 JP-A-8-20604
- Patent Document 9 JP-A-8-48075
- Patent Document 10 JP-A-8-131816
- Patent Document 11 JP-A-10-24233
- the present inventors have proposed fine particles constituting an antireflection layer having a low refractive index. When used, they are excellent in dispersibility in binder components, prevent irregular reflection of light, and have high alkali resistance. Hollow resin fine particles, organic / inorganic hybrid fine particles, and hollow It is an object of the present invention to provide a method for producing fine resin particles. Means for solving the problem
- the present invention is a hollow resin fine particle having a single-pore structure, having an average particle diameter of 10- ⁇ m and a refractive index of 1.40 or less.
- the hollow resin fine particles of the present invention are hollow having a single-pore structure.
- single-pore structure does not include a case having a plurality of voids such as a porous one, but means having only one void. Due to the single-hole structure, the inside of the void becomes excellent in hermeticity.For example, when the hollow resin fine particles of the present invention are used for an anti-reflection film, penetration of a nodder or other components into the inside of the particle may occur. The porosity can be prevented from lowering.
- a gas air is preferable, but another gas may be used. Since the air phase has a refractive index of about 1.00, it is possible to realize a very low refractive index by making it hollow.
- the lower limit of the average particle diameter of the hollow resin fine particles of the present invention is 10 nm, and the upper limit is 100 nm.
- hollow resin fine particles of the present invention are used in, for example, an anti-reflection film, unevenness due to the hollow resin fine particles occurs on the surface of the anti-reflection film, resulting in poor smoothness or hollow resin.
- the transparency of the anti-reflection film is reduced due to Rayleigh scattering on the surface of the fine particles, and the image is whitened.
- a preferred upper limit is 70 nm, and a more preferred upper limit is 50 ⁇ m.
- the hollow resin fine particles of the present invention have an upper limit of the refractive index of 1.40.
- the ratio exceeds 1.40 when the hollow resin fine particles of the present invention are used for, for example, an antireflection film, the effect of preventing reflection of incident light such as external light cannot be sufficiently obtained.
- the thickness of the anti-reflection film required to prevent reflection becomes unnecessarily thick.
- a preferred upper limit is 1.35, and a more preferred upper limit is 1.30.
- a preferable lower limit of the porosity is 30%. If it is less than 30%, a sufficiently low refractive index may not be realized.
- the upper limit of the porosity is not particularly limited, it is preferable because it is necessary to maintain the shape and secure a certain strength. /, The upper limit is 95%, more preferred! /, The upper limit is 70%.
- a preferable upper limit of the CV value of the particle diameter is 20%. If it exceeds 20%, the ratio of coarse particles having a size of 100 nm or more increases, and when the hollow resin fine particles of the present invention are used for, for example, an antireflection film, transparency and smoothness may be poor. A more preferred upper limit is 15%.
- Such hollow resin fine particles of the present invention can be suitably produced by a method for producing hollow resin fine particles using a lipophilic reaction component A and a hydrophilic reaction component B described below.
- the hollow resin fine particles of the present invention produced by such a method have at least an outermost layer made of a resin obtained by reacting the lipophilic reaction component A with the hydrophilic reaction component B.
- the lipophilic reaction component A is not particularly limited, and includes, for example, polyisocyanate, epoxy prepolymer, acid salt, logenide and the like.
- the polyisocyanate has lipophilicity and gives a resin by reacting with a hydrophilic reaction component such as water, amine, polyol, polycarboxylic acid and the like.
- a hydrophilic reaction component such as water, amine, polyol, polycarboxylic acid and the like.
- the polyisocyanate is not particularly limited, and examples thereof include a burette type, an adduct type, and an isocyanurate type.
- the above polyisocyanate, polyol and polycarboxylic acid mean a compound having a plurality of the functional groups in one molecule.
- the epoxy prepolymer has lipophilicity and reacts with amine-polycarboxylic acid, acid anhydride, polythiol, and phenol resin to give a resin.
- the epoxy prepolymer is not particularly limited and includes, for example, bisphenol A type, resorcinol type, bisphenol F type, tetraphenol methane type, novolak type, polyalcohol type, polydaryl type, glycerin triether type, glycidyl ether type Glycidyl ester type, glycidylamine type, aliphatic type, alicyclic type, aminophenol type, hidatoin type, isocyanurate type, biphenol type, naphthalene type, hydrogenated product thereof, fluorinated product, etc. No. Among them, fluorinated compounds are preferred.
- the refractive index of the hollow resin fine particles of the present invention can be improved. Can be effectively reduced, and intrusion of a polar medium or the like to be described later into the void can be suppressed.
- the epoxy equivalent of such an epoxy prepolymer is not particularly limited, but a preferred upper limit is 500.
- a resin having an upper limit of the epoxy equivalent of 500 a resin having a high degree of cross-linking and excellent in heat resistance, solvent resistance and strength can be obtained.
- a more preferred upper limit is 200.
- the epoxy prepolymer having an upper limit of the epoxy equivalent of 200 is not particularly limited.
- Epoteto YD115, Epoteote YD127, Epotete YD128 (trade names, all manufactured by Toto Kasei Co., Ltd.), Epicoat 825, Epicoat 827, Epicoat 828 Bisphenol A-type epoxy resin such as EPICLON 840 and EPICLON 850 (trade names, also manufactured by Dainippon Ink and Chemicals, Inc.); Epototo YDF-170, Epototo YDF175S (Trade names, all manufactured by Toto Kasei Co., Ltd.), Epikote 806, Epicote 807 (trade names, also manufactured by Japan Epoxy Resin), EPICLON 830, EPICL ON 835 (trade name, also manufactured by Dainippon Ink & Chemicals, Inc.) Bisphenol F-type epoxy resin such as Epothot YDPN-638, Eppot YDCN-701, Ep
- Resins reactive diluents such as E PICLON 725 (trade name, manufactured by Dainippon Ink and Chemicals), and fluorinated compounds thereof. Among them, fluorinated compounds are preferred. By using a fluorinated compound, it is possible to effectively lower the refractive index of the hollow resin fine particles of the present invention and to suppress the penetration of a polar medium or the like described below into the void.
- the epoxy prepolymer having an epoxy equivalent of more than 200 and not more than 500 is not particularly limited.
- Epototo YD134, Epototo YD011 (trade names, all manufactured by Toto Kasei Co., Ltd.), Epicoat 801 and Epicoat 1001 (trade names, Bisphenol A type epoxy resin such as EPICLON860, EPICLON1050, EPICLON1055 (trade names, all manufactured by Dai Nippon Ink Chemical Co., Ltd.); Epototo YDF-2001 (trade name, manufactured by Toto Kasei Co., Ltd.) N-660, EPICLON N—665, EPICLON N—670, EPICLON N—673, EPICLON N—680, EPICLON N—695 of bisphenol F-type epoxy resin (trade name, Dainippon Ink and Chemicals, Inc.) Novolac type epoxy resin such as EPICOAT 157S70 (trade name, manufactured by Japan Epoxy Resin), EPICLON5500
- EPICOTON ST-3000 (trade name, manufactured by Toto Kasei Co., Ltd.), Epicoat YX8000, hydrogenated epoxy resin such as Epicoat® 8034 (trade name, also manufactured by Japan Epoxy Resin); EPICLON HP-7200 (Trade name, manufactured by Dainippon Ink and Chemicals, Inc.) and the like, or fluorinated products thereof. Above all, Fluoridei It is preferably an object. By using a fluorinated substance, it is possible to effectively lower the refractive index of the hollow resin fine particles of the present invention and to suppress intrusion of a polar medium or the like described below into the void.
- epoxy prepolymers may be used alone or in combination of two or more.
- Examples of the epoxy prepolymer having an epoxy equivalent of more than 500 include, for example, Epotote YD-012 and Eho. Thoth YD-013, Epototh YD-014, Jeho. Tote YD-017, Epitote YD-019 (trade names, all manufactured by Toto Kasei), Epikote 1002, Epikote 1003, Epikoto 1055, Epikoto 1004, Epikoto 1007, Epikoto 1009, Epikoto 1 010 (product names, all made by Japan Epoxy Resin), EPICLON3050, EPICLO N4050, EPICLON AM—020—P, EPICLON AM—030—P ⁇ EPICLON AM—040—P, EPICLON 7050, EPICLON HM—091 Bisphenol A-type epoxy resin such as EPICLON HM-101 (trade name, also manufactured by Dainippon Ink and Chemicals); Epoteto YDF-2004 (trade name, manufactured by
- fluorinated products thereof.
- fluorinated compounds are preferred.
- a fluorinated substance it is possible to effectively lower the refractive index of the hollow resin fine particles of the present invention, and to suppress intrusion of a polar medium or the like described below into voids.
- the acid halide anilide is not particularly limited, and examples include dibasic acid halide anilides such as aziboyl dichloride, phthaloyl dichloride, terephthaloyl dichloride, and 1,4-cyclohexanedicarboyl chloride. .
- dibasic acid halide anilides such as aziboyl dichloride, phthaloyl dichloride, terephthaloyl dichloride, and 1,4-cyclohexanedicarboyl chloride.
- the hydrophilic reaction component B is not particularly limited, and is appropriately determined in accordance with the lipophilic reaction component A so as to react with the lipophilic reaction component A to generate a resin.
- the hydrophilic reaction component B is selected from the group consisting of water, amine, polyol, and polycarboxylic acid. At least one of them is preferably used.
- the polyurea is formed by the reaction of the polyisocyanate with water and Z or amine
- the polyurethane is formed by the reaction of the polyisocyanate and the polyol
- the polyisocyanate and the polycarboxylic acid are reacted with each other. Reacts to produce a polyamide.
- an epoxy polymer is formed by the reaction of the epoxy prepolymer with the amine, polyurenoic acid, polythiol and z or phenol resin.
- an acid halide is used as the lipophilic reaction component A
- an amine or a polyol is suitably used as the hydrophilic reaction component B.
- nylon and polyester are produced by the reaction between the acid halide and the amine or polyol.
- the above amine is not particularly restricted but includes, for example, ethylenediamine and its adducts, ethylenetriamine, dipropylenetriamine, triethylenetetramine, tetraethylenepentamine, dimethylaminopropylamine, getylamino.
- the polyol is not particularly limited, and includes, for example, ethylene glycol, 1,4 butane diol, 2,3 butane diol, catechol, resorcinol, hydroquinone, o-diene Hydroxymethylbenzene, 4,4'-dihydroxydiphenylmethane, 2,2 bis (4-hydroxyphenyl) propane, 1,1,1-trimethylolpropane; polyvinyl alcohol, polyhydroxymetharylate, polyethylene glycol, polyoxy Examples include hydroxyl group-containing polymers such as propylene glycol and polyoxyalkylene glycol.
- the above polycarboxylic acid is not particularly limited, and examples thereof include oxalic acid, adipic acid, azelaic acid, sebacic acid, malonic acid, succinic acid, 1,4-cyclohexyldicarboxylic acid, (o-, m- And p-) a polymer copolymer containing at least 10% by weight of any of benzenedicarboxylic acid, maleic acid, itaconic acid, acrylic acid, methyl methacrylic acid and the like.
- the hollow resin fine particles of the present invention are excellent in heat resistance, solvent resistance, strength and the like.
- the outermost layer of the hollow resin fine particles of the present invention has a polyurea, polyurethane, polyamide, polyester, nylon, and epoxy polymer power in combination with the lipophilic reaction component A and the hydrophilic reaction component B. It preferably contains at least one resin selected from the group.
- the hollow resin fine particles of the present invention preferably contain a resin crosslinked by an inorganic component.
- Such hollow resin fine particles of the present invention have an inorganic skeleton in their structure, are excellent in heat resistance and solvent resistance, and can effectively prevent the penetration of the noinder component into the voids. it can.
- the resin cross-linked by such an inorganic component can be obtained, for example, by adding a functional group of the resin contained in the hollow resin fine particles of the present invention to an epoxy group, an isocyanate group, a ureide group, or an amino group inside the structure. And a silane coupling agent having a mercapto group and a halogen group.
- the hollow resin fine particles of the present invention having such a single-pore structure are obtained by dispersing the polymerizable droplet containing the lipophilic reaction component A in a polar medium containing the hydrophilic reaction component B.
- the dispersion can be suitably produced by a method including a step of preparing a dispersion liquid, and a step of reacting the lipophilic reaction component A with the hydrophilic reaction component B.
- the method for producing such hollow resin fine particles is also one of the present invention.
- the method for producing hollow resin fine particles of the present invention is characterized in that the polar medium containing the hydrophilic reaction component B is used.
- a non-polymerizable compound may be added to the lipophilic reaction component A.
- the non-polymerizable compound has a role of forming stable polymerizable droplets in a polar medium and controlling a reaction rate between the lipophilic reaction component A and the hydrophilic reaction component B. Further, by blending the non-polymerizable conjugate with the lipophilic reaction component A, the resin fine particles prepared by the process described below can be used as the non-polymerizable compound (and the unreacted lipophilic reaction component A). ) Is contained, and by removing the non-polymerizable resin conjugate (and the unreacted lipophilic reactant A), the hollow resin fine particles having a high porosity can be obtained. Can be manufactured.
- the non-polymerizable compound is a liquid at the reaction temperature between the lipophilic reaction component A and the hydrophilic reaction component B, can be mixed with the lipophilic reaction component A, and does not react with the lipophilic reaction component A.
- Examples include butane, pentane, hexane, cyclohexane, toluene, xylene, octane, nonane, decane, pendecane, dodecane, and the like.
- Tridecane Tetradecane, Heptadecane, Hexadecane, Heptadecane, Octadecane, Nonadecane, Eicosan, Ethyl acetate, Methylethylketone, Methylisobutylketone, Methylamylketone, Diisobutylketone, Methyl chloride, Methylene chloride, Methyl chloride, Formaldehyde, Tetrasalt And organic solvents such as danicarbon.
- the non-polymerizable compounds may be used alone or in combination of two or more.
- non-polymerizable conjugates carbon numbers of 8-20 such as octane, nonane, decane, pendecane, dodecane, tridecane, tetradecane, heptadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, etc.
- Higher alkanes and long-chain hydrophobic conjugates can effectively suppress the coalescence of polymerizable droplets in a polar medium.
- polymerizable droplets on the order of nanometers can be formed stably.
- the blending amount of the non-polymerizable compound is not particularly limited, but a preferable lower limit is 10 parts by weight and a preferable upper limit is 1000 parts by weight based on 90 parts by weight of the lipophilic reaction component A. . If the amount is less than 10 parts by weight, the porosity of the obtained hollow resin fine particles may be low, and a sufficiently low refractive index may not be achieved. If the amount is more than 1000 parts by weight, the non-polymerizable compound is excluded. Sometimes, the shape of the particles cannot be maintained, so that the hollow resin fine particles cannot be obtained, or the strength of the obtained hollow resin fine particles may be extremely poor.
- the polar medium is not particularly limited, and examples thereof include those used in ordinary suspension polymerization methods such as water, ethanol, methanol, and isopropyl alcohol.
- the lipophilic reaction component A is a polyisocyanate
- water and Z or the alcohol used as the polar medium also function as the hydrophilic reaction component B.
- the method for preparing the dispersion is not particularly limited, and a conventionally known method can be used.
- a dispersion of polymerizable droplets on the order of nanometers can be prepared by using a high-shearing emulsifier.
- a high-shearing emulsifier can be suitably prepared.
- Examples of such a high shearing emulsifying device include an omni mixer, an ultrasonic homogenizer, a microfluidizer, and the like.
- various additives may be added to the polar medium.
- Lauryl ether polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene myristyl ether, polyoxyethylene alkyl ether, polyoxyethylene higher alcohol ether, polyoxyethylene alkylene alkyl ether , Polyoxyethylene distyrenated phenol ether, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan tristearate, sorbitan monooleate, sorbitan trioleate, polyoxyethylene sorbitan Nolaurate, polyoxyethylene sorbitan laurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, glycerono Non-ionic lactants such as lemonostearate, glyceronolemonostearate, g
- the polymerizable droplet is obtained by uniformly dissolving the lipophilic reaction component A.
- the method for producing the polymerizable droplet is not particularly limited.For example, the lipophilic reaction component A and other lipophilic components such as additives added as necessary are measured and mixed, and then mixed. Stirring until dissolved in water.
- the lower limit of the mixing ratio is preferably 0.1 part by weight based on 100 parts by weight of the total amount of the lipophilic reaction component A and the non-polymerizable compound. If the amount is less than 0.1 part by weight, coalescence of the polymerizable droplets may not be effectively suppressed.
- the method for producing hollow resin fine particles of the present invention includes a step of reacting the lipophilic reaction component A with the hydrophilic reaction component B.
- the lipophilic reaction component A and the hydrophilic reaction component B react with each other. This produces fat.
- the polymerizable droplet containing the lipophilic reaction component A and Since the phase is separated from the polar medium containing the hydrophilic reactive component B the reaction occurs only near the interface between the polymerizable droplet and the polar medium, and the reaction occurs from the generated resin.
- the hollow resin fine particles of the present invention having a shell of the present invention are produced.
- the hollow resin fine particles produced may contain the unreacted lipophilic reaction component A in some cases.
- the method for producing hollow resin fine particles of the present invention preferably further includes a step of removing the unreacted lipophilic reaction component A contained therein.
- the method of removing the unreacted lipophilic reaction component A that includes the unreacted lipophilic reaction component A is not particularly limited.
- a method of blowing gas such as nitrogen or air into the liquid; a method of heating the hollow resin fine particles above the boiling point of the unreacted lipophilic reaction component A and the solvent used; a method of reducing the pressure of the entire system; an unreacted lipophilic reaction A method of extracting component A with a solvent and the like can be mentioned.
- the solvent used in the extraction with the above solvent is not particularly limited as long as it is a solvent that can be suitably mixed with the lipophilic reaction component A.
- the above-mentioned non-polymerizable conjugate is preferably used. It comes out.
- the hollow resin fine particles have a single-pore structure, the lower limit of the average particle diameter is 10 nm, the upper limit is 100 nm, and the refractive index is 1.40 or less.
- the hollow resin fine particles of the present invention can be suitably produced.
- the hollow resin fine particles of the second invention have a single-pore structure and have a composite outer shell composed of at least two resin layers, an outermost layer and an inner layer.
- the outer shell of the particle is a composite outer shell composed of at least two resin layers, the outermost layer and the inner layer, the outer shell of the particle can have a plurality of functions, thereby effectively increasing the porosity. It is possible to obtain hollow resin fine particles having a low refractive index.
- hollow resin fine particles having a low refractive index for example, although the refractive index is high, Hollow resin fine particles consisting of an outermost layer made of a resin component having excellent heat resistance, solvent resistance, and strength, and an inner layer made of a resin component having low heat resistance, solvent resistance, and low strength but a low refractive index In addition to functions such as heat resistance and the like, it is possible to lower the refractive index of the entire hollow resin fine particles having a high porosity.
- the refractive index, polarity, crystallinity, heat resistance, solvent resistance, strength, weather resistance, transparency, etc. can be arbitrarily determined. It can be applied to fat fine particles.
- the hollow resin fine particles of the second invention are hollow having a single-pore structure.
- the inside of the void becomes excellent in hermeticity.
- a binder or other It is possible to prevent a decrease in porosity due to intrusion of components.
- gas exists inside the gap.
- a gas air is preferable, but another gas may be used. Since the air phase has a refractive index of approximately 1.00, it is possible to realize a very low refractive index by making the air phase hollow.
- the lower limit of the porosity is 30%. If it is less than 30%, a sufficiently low refractive index cannot be realized.
- the upper limit of the porosity is not particularly limited. Since it is necessary to maintain the shape of the force and to secure a certain level of strength, a preferable upper limit is 95%, and a more preferable upper limit is 70%.
- a preferable lower limit of the average particle diameter is 10 nm, and a preferable upper limit is 100 nm. If it is less than lOnm, aggregation of the hollow resin fine particles of the second invention may occur, resulting in inferior handleability.
- the surface of the anti-reflection film is uneven due to hollow resin particles, resulting in poor smoothness, or the transparency of the anti-reflection film due to Rayleigh scattering on the surface of the hollow resin particles. And the image may be whitened.
- a more preferred upper limit is 70 nm, and a still more preferred upper limit is 50 nm.
- the hollow resin fine particles of the second invention have a preferable upper limit of the refractive index of 1.40.
- the ratio exceeds 1.40, when the hollow resin fine particles of the second invention are used for an antireflection film, for example, the effect of preventing the reflection of incident light such as external light is sufficiently obtained. And the thickness of the anti-reflection film required to prevent reflection may become unnecessarily thick. is there.
- a more preferred upper limit is 1.35, and a still more preferred upper limit is 1.30.
- the hollow resin fine particles of the second invention have a preferable upper limit of the CV value of the particle diameter of 20%.
- the ratio of coarse particles having a size of 100 nm or more becomes high, and when the hollow resin fine particles of the second invention are used for, for example, an antireflection film, transparency and smoothness may be inferior. is there.
- a more preferred upper limit is 15%.
- the hollow resin fine particles of the second aspect of the present invention do not react with the lipophilic reaction component A, the hydrophilic reaction component B, and the lipophilic reaction component A and the hydrophilic reaction component B described below. ⁇ ⁇ It can be suitably produced by a method using lipophilic reaction component C.
- the outermost layer of the second hollow resin fine particles of the present invention produced by such a method is a resin obtained by reacting the lipophilic reaction component A and the hydrophilic reaction component B, and the inner layer is the above-mentioned resin. It does not react with the oily reaction component A and the hydrophilic reaction component B. It is composed of a resin obtained by reaction of the lipophilic reaction component C.
- the hollow resin fine particles of the second aspect of the present invention having such a structure can achieve the above average particle diameter, porosity, refractive index, and the like by adjusting the configurations of the outermost layer and the inner layer.
- the lipophilic reaction component A and the hydrophilic reaction component B are not particularly limited.
- the outermost layer of the hollow resin fine particles of the second invention is formed of polyurea, polyurethane, polyamide, polyester, nylon, and epoxy polymer by the combination of the lipophilic reaction component A and the hydrophilic reaction component B. It preferably contains at least one resin selected from the group consisting of physical strength.
- the outermost layer of the hollow resin fine particles of the second invention preferably contains a resin crosslinked by an inorganic component.
- the hollow resin fine particles of the second aspect of the present invention have an inorganic skeleton in the outermost layer, are excellent in heat resistance and solvent resistance, and effectively prevent one component of the binder from entering the voids. be able to.
- the resin cross-linked by such an inorganic component may include, for example, an unreacted functional group of the resin contained in the hollow resin fine particles of the second invention, an epoxy group, an isocyanate group, or the like inside the structure.
- ⁇ ⁇ ⁇ It can be obtained by reacting with a silane coupling agent having a raid group, amino group, mercapto group or halogen group.
- the lipophilic reaction component C is not particularly limited as long as it does not react with the lipophilic reaction component A and the hydrophilic reaction component B, but the range of selection of the reaction components, ease of handling, etc.
- a radical polymerizable monomer is preferably used.
- the radically polymerizable monomer is not particularly limited, and examples thereof include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, and Tamyl (meth) acrylate.
- Alkyl (meth) acrylates such as cyclohexyl (meth) acrylate, myristyl (meth) acrylate, palmityl (meth) acrylate, stearyl (meth) acrylate, isovol (meth) acrylate, ) (Meth) acrylic monomers containing polar groups such as acrylonitrile, (meth) acrylamide, (meth) acrylic acid, glycidyl (meth) atalylate, 2-hydroxyethyl methacrylate, and 2-hydroxypropyl methacrylate , Styrene, ⁇ -methylstyrene, ⁇ -methylstyrene, ⁇ - Aromatic vinyl monomers such as styrene, vinyl esters such as butyl acetate and butyl propionate, halogen-containing monomers such as butyl chloride and butylidene chloride, butyl pyridine, 2-atalyloyloxetyl phthal
- lipophilic reaction components C may be used alone or in combination of two or more.
- a fluorine-containing monomer may be used as the lipophilic reaction component C.
- the fluorinated monomer it is possible to effectively lower the refractive index of the hollow resin fine particles of the second invention and to suppress the penetration of a polar medium or the like described later into the void. is there.
- the fluorinated monomer is not particularly limited, and may be, for example, fluoroethylene, Denfluoride, Tetrafluoroethylene, Hexafluoropropylene, Perfluoro
- Fluoroolefins such as -2,2 dimethyl-1,3 dioxole; represented by the following general formula (1) such as trifluoroethyl methacrylate, perfluorooctylethyl (meth) acrylate Examples thereof include partially or fully fluorinated alkyl ester derivatives of (meth) acrylic acid, and partially or fully fluorinated vinyl ethers of (meth) acrylic acid.
- R 1 represents a hydrogen atom, a methyl group, or a fluorine atom
- m and n represent natural numbers.
- a radical polymerization initiator as a reaction catalyst.
- the radical polymerization initiator is not particularly limited, and examples thereof include di-tert-butyl peroxide, dicumyl peroxide, di-tert-butyl peroxide, di-sec butyl peroxide carbonate, t-butyl peroxylaurate, and t-butyl peroxide.
- the hollow resin fine particles of the second invention have a low refractive index.
- the blending amount of the lipophilic reaction component C is not particularly limited, but a preferable lower limit is 1 part by weight and a preferable upper limit is 1000 parts by weight with respect to the lipophilic reaction component AlOO parts by weight. If the amount is less than 1 part by weight, the obtained hollow resin fine particles may not be able to sufficiently impart the desired sealing property, refractive index, polarity, crystallinity, etc.
- the particle shape cannot be maintained, and hollow resin fine particles cannot be obtained, or the strength of the obtained hollow resin fine particles may be extremely poor.
- the hollow resin fine particles of the second invention are in a state where the outermost layer and the inner layer are in close contact with each other. This can be confirmed with an electron microscope (JEM-1200 ⁇ , manufactured by JEOL Ltd.).
- Such a hollow resin fine particle of the second invention is a polymerizable liquid containing a lipophilic reaction component ⁇ and a lipophilic reaction component C in a polar medium containing the hydrophilic reaction component ⁇ ⁇ .
- Preparing a dispersion liquid in which the droplets are dispersed, by reacting the lipophilic reactant A on the surface of the polymerizable droplet with the hydrophilic reactant B in the polar medium It can be suitably manufactured by a method including a step of forming an outermost layer on the surface and a step of forming an inner layer by reacting the lipophilic reaction component C inside the polymerizable droplet.
- Such a second method for producing hollow resin fine particles of the present invention is also one of the present invention.
- such a production method is also referred to as a second production method of hollow resin fine particles of the present invention.
- a polymerizable droplet containing lipophilic reaction component A and lipophilic reaction component C is placed in a polar medium containing hydrophilic reaction component B. And preparing a dispersed liquid.
- the procedure for preparing the dispersion is not particularly limited, and the polymerizable liquid containing the lipophilic reaction component A and the lipophilic reaction component C after adding the hydrophilic reaction component B to the polar medium.
- the hydrophilic reactive component B is added to the polar medium. You may get.
- the polar medium is not particularly limited, and for example, those used in ordinary suspension polymerization methods such as water, ethanol, methanol, and isopropyl alcohol can be used.
- the lipophilic reaction component A is a polyisocyanate
- water and Z or the alcohol used as the polar medium also function as the hydrophilic reaction component B.
- the method for preparing the above-mentioned dispersion liquid is not particularly limited.
- a dispersion liquid of polymerizable droplets on the order of nanometers can be suitably prepared by using a high-shear emulsifier.
- a high shearing emulsifying device include an omni mixer, an ultrasonic homogenizer, a microfluidizer, and the like.
- various additives may be added to the polar medium.
- sodium lauryl sulfate, sodium higher alcohol sulfate, triethanolamine lauryl sulfate, and ammonium lauryl sulfate may be added to the polar medium.
- sodium lauryl sulfate, sodium higher alcohol sulfate, triethanolamine lauryl sulfate, and ammonium lauryl sulfate may be added to the polar medium.
- sodium lauryl sulfate sodium higher alcohol sulfate
- triethanolamine lauryl sulfate triethanolamine lauryl sulfate
- ammonium lauryl sulfate may be added to the polar medium.
- Lauryl ether polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene myristyl ether, polyoxyethylene alkyl ether, polyoxyethylene higher alcohol ether, polyoxyethylene alkylene alkyl ether , Polyoxyethylene distyrenated phenol ether, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan tristearate, sorbitan monooleate, sorbitan trioleate, polyoxyethylene sorbitan Nolaurate, polyoxyethylene sorbitan laurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, glycerono Non-ionic lactants such as lemonostearate, glyceronolemonostearate, g
- the polymerizable droplets are those in which the lipophilic reaction component A and the lipophilic reaction component C are uniformly dissolved.
- the method for producing the polymerizable droplet is not particularly limited. For example, other lipophilic reactions such as the radical polymerization initiator and the lipophilic reaction component A and the lipophilic reaction component C added as necessary. After the components are weighed and mixed, stirring is performed until the components are uniformly dissolved.
- the non-polymerizable compound has a role of forming stable polymerizable droplets in a polar medium and controlling a reaction rate between the lipophilic reactant A and the lipophilic reactant B.
- the resin fine particles prepared by the process described below contain the non-polymerizable compound (and the unreacted lipophilic reactant A). By removing the non-polymerizable compound (and the unreacted lipophilic reaction component A) from such resin fine particles, hollow resin fine particles having a high porosity can be produced.
- the non-polymerizable compound is liquid at the reaction temperature of the lipophilic reaction component A and the hydrophilic reaction component B, and can be mixed with the lipophilic reaction component A and the lipophilic reaction component C.
- the non-polymerizable compounds may be used alone or in combination of two or more.
- non-polymerizable conjugates carbon numbers of 8 to 20 such as octane, nonane, decane, pendecane, dodecane, tridecane, tetradecane, heptadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, etc.
- Higher alkanes and long-chain hydrophobic conjugates can effectively suppress the coalescence of polymerizable droplets in a polar medium.
- polymerizable droplets on the order of nanometers can be formed stably.
- the amount of the non-polymerizable compound is not particularly limited, but the lower limit is preferably 10 parts by weight, and the upper limit is preferably 90 parts by weight of the lipophilic reaction component A and the lipophilic reaction component C. Is 1000 parts by weight. If the amount is less than 10 parts by weight, the porosity of the obtained hollow resin fine particles may be low and a sufficiently low refractive index may not be achieved.If the amount is more than 1000 parts by weight, when the non-polymerizable compound is removed. In some cases, the particle shape cannot be maintained, and hollow resin fine particles cannot be obtained, or the strength of the obtained hollow resin fine particles may be extremely poor.
- the lower limit of the mixing ratio is preferably 0.1 part by weight based on 100 parts by weight of the total amount of the lipophilic reactant A, the lipophilic reactant C and the non-polymerizable compound. If the amount is less than 0.1 part by weight, coalescence of the polymerizable droplets may not be effectively suppressed.
- the lipophilic reaction component A on the surface of the polymerizable droplet reacts with the hydrophilic reaction component B in the polar medium. Let Forming an outermost layer on the surface of the polymerizable droplet.
- the lipophilic reaction component A and the hydrophilic reaction component B can be reacted.
- Can produce resin By heating the dispersion to a reaction temperature between the lipophilic reaction component A and the hydrophilic reaction component B, the lipophilic reaction component A and the hydrophilic reaction component B can be reacted. , Can produce resin.
- the polymerizable droplet containing the lipophilic reaction component A and the polar medium containing the hydrophilic reaction component B are phase-separated, so that the reaction proceeds with the polymerizable droplet and the polar medium. This occurs only in the vicinity of the interface, and has an outermost layer of the formed resin, and forms resin fine particles including the lipophilic reaction component C.
- the second method for producing hollow resin fine particles of the present invention of the present invention includes a step of forming an inner layer by reacting the lipophilic reaction component C inside the polymerizable droplet.
- the lipophilic reaction component C can be reacted by heating the dispersion to the reaction temperature of the lipophilic reaction component C.
- the reaction between the lipophilic reaction component A and the hydrophilic reaction component B occurs only near the interface between the polymerizable droplet and the polar medium and forms an outermost layer.
- the resin formed by the reaction of the oily reaction component C forms an inner layer, and hollow resin fine particles having a composite outer shell composed of two resin layers, an outermost layer and an inner layer, are produced.
- the step of forming the inner layer can be performed before, during, or after the step of forming the outermost layer by controlling reaction conditions using the reaction catalyst or the like. .
- the hollow resin fine particles produced are made of unreacted lipophilic reactant A and unreacted lipophilic reactant. And may contain.
- the second method for producing hollow resin fine particles of the present invention preferably further includes a step of removing the unreacted lipophilic reactant A and the unreacted lipophilic reactant C contained therein. ,.
- the method of removing the unreacted lipophilic reaction component A and the unreacted lipophilic reaction component C contained in the resin fine particles is not particularly limited.
- the method for removing the obtained hollow resin fine particle dispersion may be used.
- a method of blowing gas such as nitrogen or air, a method of heating hollow resin fine particles above the boiling point of unreacted lipophilic reactant A and unreacted lipophilic reactant C, and the whole system And a method of extracting unreacted lipophilic reactant A and unreacted lipophilic reactant C with a solvent.
- the solvent used in the extraction is not particularly limited as long as it is a solvent that is compatible with the lipophilic reaction component A and the lipophilic reaction component C, and the above-mentioned non-polymerizable conjugates and the like are preferably used. You can.
- the solvent and the like included in the resin fine particles can also be removed.
- the hollow resin particles have a composite outer shell composed of at least two resin layers, an outermost layer and an inner layer, and have a porosity of 30%.
- the hollow resin fine particles of the second aspect of the present invention described above can be suitably produced.
- Organic-inorganic hybrid fine particles having an organic skeleton and an inorganic skeleton and having a refractive index of 1.40 or less are also one of the present invention.
- hybrid fine particles of the present invention have excellent alkaline resistance due to the network based on the organic skeleton. Therefore, for example, in an antireflection film prepared using such hybrid fine particles of the present invention, even when a commercially available alkaline detergent or the like is used to wipe off dirt, the contained hybrid fine particles of the present invention dissolve in the alkaline detergent. The performance as an anti-reflection film is not reduced. Further, the hybrid fine particles of the present invention have an inorganic skeleton and thus are excellent in heat resistance and solvent resistance. When an antireflection film is produced using the hybrid fine particles of the present invention, a solvent is used when forming the film.
- the upper limit of the refractive index of the hybrid fine particles of the present invention is 1.40. If the ratio exceeds 40, when the hybrid fine particles of the present invention are used in, for example, an anti-reflection film, the effect of preventing incident light such as external light from being reflected cannot be sufficiently obtained, and reflection is not achieved. The thickness of the anti-reflection film required to prevent this becomes unnecessarily thick.
- the preferred upper limit is 1. 35, a more preferred upper limit is 1.30.
- Such hybrid fine particles of the present invention preferably have a hollow structure having voids therein. By having voids inside, the low refractive index of the fine particles of the invention and the hybrids becomes lower.
- the preferable lower limit of the porosity is 30%. If it is less than 30%, a sufficiently low refractive index may not be realized.
- a preferable upper limit of the porosity is not particularly limited, a preferable upper limit is 95% and a more preferable upper limit is 70% because it is necessary to maintain the shape and secure a certain level of strength.
- the method for synthesizing such hybrid fine particles having a hollow structure is not particularly limited.
- emulsion polymerization using a polymerizable silane coupling agent having a vinyl group in the structure and a non-polymerizable organic solvent may be used.
- Drop-type emulsion polymerization, soap-free polymerization, micro-emulsion polymerization, mini-emulsion polymerization, micro-suspension polymerization; silane coupling having epoxy group, isocyanate group, ureide group, amino group, mercapto group, and halogen group in the structure examples include interfacial polymerization using an agent, and can be synthesized using an appropriate polymerization method.
- the polymerizable silane coupling agent having a bull group in the above structure is not particularly limited, and examples thereof include butyl trichlorosilane, bur trimethoxy silane, bur triethoxy silane, p-styryl methoxy silane, and 3-methacryloxy. Examples thereof include propyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyljetoxysilane, 3-methacryloxypropyltriethoxysilane, and 3-attaryloxypropyltrimethoxysilane.
- These polymerizable silane coupling agents having a vinyl group inside the structure may be used alone or as a mixture of two or more kinds with any polymerizable monomer.
- the polymerizable monomer is not particularly limited, and examples of the monofunctional monomer include methyl (meth) atalylate, ethyl (meth) atalylate, propyl (meth) atalylate, and butyl (meth) atalyte. , Tamyl (meth) acrylate, cyclohexyl (meth) acrylate, myristyl (meth) acrylate, palmityl (meth) acrylate, stearyl (meth) acrylate, isobolyl (meth) acrylate, etc.
- Polar group-containing (meth) acrylic monomers such as (meth) acrylamide, (meth)
- the polyfunctional monomer of the polymerizable monomer is not particularly limited, and examples thereof include di (meth) acrylate, tri (meth) acrylate, di- or triaryl compounds, and divinyl conjugates. . These may be used alone or in combination of two or more.
- the above-mentioned polyfunctional monomer is added for the purpose of increasing the glass transition temperature (Tg) of the above-mentioned fine particles, and improving the heat resistance and the solvent resistance.
- the di (meth) acrylate is not particularly limited, and examples thereof include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, and 1,6. — Hexanediol di (meth) acrylate and trimethylolpropane di (meth) acrylate.
- the tri (meth) atalylate is not particularly limited.
- the di- or triaryl conjugates are not particularly limited, and include, for example, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, diaryl phthalate, diaryl malate, and diaryl fumarate. Rate, diaryl succinate, triallyl isocyanurate and the like.
- dibutyl compound is not particularly limited, and examples include dibutylbenzene, butadiene and the like.
- the non-polymerizable organic solvent is not particularly limited as long as it is miscible with the polymerizable silane coupling agent having a bull group in the structure and is liquid at the polymerization temperature.
- the silane coupling agent having an epoxy group in the above structure is not particularly limited, and examples thereof include 2- (3,4 epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, —Glycidoxypropylmethylethoxysilane, 3-glycidoxypropyltriethoxysilane and the like.
- the silane coupling agent having an isocyanate group in the above structure is not particularly limited, and examples thereof include 3-isocyanatepropyltriethoxysilane.
- the silane coupling agent having a ureido group inside the above structure is not particularly limited, and examples thereof include 3-ureidopropyltriethoxysilane.
- the silane coupling agent having an amino group in the above structure is not particularly limited.
- N-2 (aminoethyl) 3-aminopropylmethyldimethoxysilane N-2 (aminoethyl) 3- Aminopropyltrimethoxysilane
- N— 2 (aminoethyl) 3-aminopropyltriethoxysilane 3-aminopropyltrimethoxysilane
- 3-aminopropyltriethoxysilane 3-triethoxysilyl N— (1 , 3 dimethylbutylidene) propylamine N-fluoro-3aminopropyltrimethoxysilane
- N (vinylbenzyl) 2 aminoethyl-3-aminopropyltrimethoxysilane hydrochloride special aminosilane and the like.
- the silane coupling agent having a mercapto group in the above structure is not particularly limited, and examples thereof include 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltrimethoxysilane and the like.
- the silane coupling agent having a halogen group in the above structure is not particularly limited, and examples thereof include 3-chloropropyl propyltrimethoxysilane.
- silane coupling agents capable of interfacial polymerization can be used alone as any surface polymerization reactive substance such as epoxy prepolymer, isocyanate, amine, halogenated compound, polymercaptan, and polybutadiene. It may be used as a mixture of two or more kinds with chloride or the like.
- the silane coupling agent When the silane coupling agent is used in combination with the interfacial polymerization reactive substance, the silane coupling agent is added from the initial stage of the reaction of the interfacial polymerization reactive substance! And may be added in the latter half of the reaction of the interfacial polymerization reactive substance.
- the silane coupling agent is added in the latter half of the reaction of the interfacial polymerization reactive substance, the resulting resin constituting the hybrid fine particles of the present invention has a structure crosslinked with the silane coupling agent.
- the epoxy prepolymer has lipophilicity and reacts with amine-polycarboxylic acid, acid anhydride, polythiol, and phenol resin to give a resin.
- the epoxy prepolymer is not particularly limited and includes, for example, bisphenol A type, resorcinol type, bisphenol F type, tetraphenol methane type, novolak type, polyalcohol type, polydaryl type, glycerin triether type, glycidyl ether type Glycidyl ester type, glycidylamine type, aliphatic type, alicyclic type, aminophenol type, hidatoin type, isocyanurate type, biphenol type, naphthalene type, hydrogenated product thereof, fluorinated product, etc. No.
- the epoxy equivalent of such an epoxy prepolymer is not particularly limited, but a preferred upper limit is 500.
- a resin having a high degree of cross-linking and excellent in heat resistance, solvent resistance and strength can be obtained.
- a more preferred upper limit is 200.
- the epoxy prepolymer having an upper limit of the epoxy equivalent of 200 is not particularly limited.
- Epoteto YD115, Epoteto YD127, Epotete YD128 (trade names, all manufactured by Toto Kasei Co., Ltd.), Epikote 825, Epikote 827, Epikote 828 Bisphenol A-type epoxy resin such as EPICLON 840 and EPICLON 850 (trade names, also manufactured by Dainippon Ink and Chemicals, Inc.); Epototo YDF-170, Epototo YDF175S (Trade names, all manufactured by Toto Kasei Co., Ltd.), Epikote 806, Epicote 807 (trade names, also manufactured by Japan Epoxy Resin), EPICLON 830, EPICL ON 835 (trade name, also manufactured by Dainippon Ink & Chemicals, Inc.) Bisphenol F-type epoxy resin such as Epothot YDPN-638, Eppot YDCN-701,
- the epoxy prepolymer having an epoxy equivalent of more than 200 and not more than 500 is not particularly limited.
- Epototo YD134, Epototo YD011 (trade names, all manufactured by Toto Kasei Co., Ltd.), Epicoat 801 and Epicoat 1001 (trade names, Bisphenol A type epoxy resin such as EPICLON860, EPICLON1050, EPICLON1055 (trade names, all manufactured by Dai Nippon Ink Chemical Co., Ltd.); Epototo YDF-2001 (trade name, manufactured by Toto Kasei Co., Ltd.) EPICLON N-660, EPICLON N-665, EPICLON N-670, EPICLON N-673, EPICLON N-680, EPICLON N-695 (Brand name, Dainippon Ink and Chemicals, Inc.) Novolac type epoxy resin such as EPICOAT 157S70 (trade name, manufactured by Japan Epoxy Resin), EPICLON5500 (trade name, manufactured by
- epoxy prepolymers may be used alone or in combination of two or more.
- Epoxy prepolymers having an epoxy equivalent of more than 500 include, for example, Epotote YD-012 and Eho. Thoth YD-013, Epototh YD-014, Jeho. Tote YD-017, Epitote YD-019 (trade names, all manufactured by Toto Kasei Co., Ltd.), Epicote 1002, Epicote 1003, Epicope 1055, Epicope 1004, Epicope 1007, Epicope 1009, Epico 1 010 (product name, all made by Japan Epoxy Resin), EPICLON3050, EPICLO N4050, EPICLON AM—020—P, EPICLON AM—030—P ⁇ EPICLON AM—040—P, EPICLON 7050, EPICLON HM—091 Bisphenol A-type epoxy resin such as EPICLON HM-101 (trade name, also manufactured by Dainippon Ink and Chemicals); Epoteto YDF-2004 (trade name,
- the above-mentioned isocyanate is not particularly limited, and examples thereof include a burette type, an adduct type, and an isocyanate. Annulate type and the like.
- the above-mentioned amine is not particularly restricted but includes, for example, ethylenediamine and its adducts, ethylenetriamine, dipropylenetriamine, triethylenetetramine, tetraethylenepentamine, dimethylaminopropylamine, dimethylaminopropylamine.
- the halogenated anilide is not particularly limited, and examples thereof include dibasic acid halides such as aziboyl dichloride, phthaloyl dichloride, terephthaloyl dichloride, and 1,4-cyclohexanedicarboyl chloride.
- the hollow resin fine particles of the present invention and the second fine particles of the present invention described above, and the hybrid fine particles of the present invention are dispersed in an appropriate binder.
- an antireflective resin composition for producing an antireflection film or the like can be produced.
- Such an antireflective resin composition containing the fine particles according to the present invention is also one of the present invention.
- the above-mentioned binder for dispersing the fine particles according to the present invention is not particularly limited as long as it is a transparent and film-forming material.
- organic materials such as resin, inorganic materials, and polymerizable materials can be used. Functional monomer solution and the like.
- the organic material is not particularly limited, and includes, for example, cellulose such as triacetyl cellulose, diacetylinoresenorelose, propioninoresenorelose, butanoinoresenorelose, acetinolepropioyl cellulose acetate, and nitrocellulose.
- cellulose such as triacetyl cellulose, diacetylinoresenorelose, propioninoresenorelose, butanoinoresenorelose, acetinolepropioyl cellulose acetate, and nitrocellulose.
- Derivatives polyamides, polycarbonates; polyethylene terephthalate, poly 1,4-cyclohexane dimethylene terephthalate, polyethylene 1,2-diphenoxetane 4,4 dicanoleboxylate, polybutylene terephthalate, polyethylene naphthalate, etc.
- Polyester polystyrene, polypropylene, polyethylene, polymethylpentene, polysulfone, polyethersulfone, polyarylate, polyetherimide, polymethylmetharylate, or a variety of these Relatively low refractive index transparent ⁇ such as body and the like.
- the glass transition temperature of the present invention is not limited to the above. It is preferable to use one having a glass transition temperature lower than that of the hollow resin fine particles. Thereby, sufficient film strength can be obtained.
- the inorganic material is not particularly limited, and examples thereof include alkoxides of various elements, salts of organic acids, and coordination compounds bonded to coordination compounds.
- the polymerizable monomer in the polymerizable monomer solution is not particularly limited as long as it is transparent.
- These monomers may be used alone or in combination of two or more.
- the polymerizable monomer solution may contain a polyfunctional monomer for the purpose of improving the film strength.
- the polyfunctional monomer is not particularly limited, and examples thereof include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, and 1,6-hexanediol di (meth) ) Atharylate, tri (methyl) acrylate such as trimethylolpropane di (meth) acrylate; trimethylolpropane tri (meth) acrylate, ethylene oxide-modified trimethylolpropane tri (meth) acrylate, pentaerythritol Tri (meth) atalylates such as (meth) atalylate; tetra (meth) atalylates such as pentaerythritol tetra (meth) atalylate; hexa (meth) atalylates such as pentaerythritolhexa (meth) atalylate; penta Erythritol
- These polyfunctional monomers may be used alone or in combination of two or more.
- the mixing ratio of the fine particles according to the present invention to the binder is not particularly limited, but the lower limit of the amount of the fine particles according to the present invention is preferably 5% by volume and the upper limit is preferably 95% by volume. If the content is less than 5% by volume, for example, the refractive index of the antireflection film using the antireflective resin composition of the present invention may not be sufficiently low. The mechanical strength of the film may be poor.
- a more preferred lower limit is 30% by volume, a more preferred upper limit is 90% by volume, a still more preferred lower limit is 50% by volume, and a still more preferred upper limit is 80% by volume.
- the antireflective resin composition of the present invention may be an emulsion in which the fine particles according to the present invention are suspended in a binder when a curable resin is used as the binder. In other cases, it may be diluted with an appropriate volatile solvent.
- the volatile solvent include, but are not particularly limited to, stability, wettability, and volatility of the composition, for example, methanol, ethanol, isopropanol, butanol, and 2-methoxyethanol.
- Alcohols such as ethanol; ketones such as acetone, methyl ethyl ketone and methyl isobutyl; esters such as methyl acetate, ethyl acetate and butyl acetate; ethers such as diisopropyl ether; ethylene glycol, propylene glycol, hexylene glycol and the like Glycols such as: ethyl alcohol, such as ethyl ethyl sorb, butinoleserosonolev, ethyl carbitol, butyl carbitol; aliphatic hydrocarbons such as hexane, heptane, and octane; halogenated hydrocarbons; benzene , Toluene, xylene and the like; N-methylpyrrolidone, dimethylformamide and the like are preferably used. These volatile solvents may be used alone or in combination of two or more.
- the antireflective resin composition of the present invention described above can be used as a coating agent for an antireflective film for producing an antireflective film.
- a coating agent for an antireflection film which also provides the antireflective resin composition of the present invention, is also one of the present inventions.
- an antireflection film using the coating agent for an antireflection film of the present invention is also one of the present invention.
- the method for producing the antireflection film of the present invention is not particularly limited. For example, after the coating agent for an antireflection film of the present invention is applied on a release film or the like or directly on a transparent substrate, And drying methods.
- the method for applying the antireflection coating agent of the present invention is not particularly limited, and examples thereof include dip coating, spin coating, flow coating, spray coating, roll coating, gravure roll coating, and the like. Airdactor coating method, blade coating method, wire doctor coating method, knife coating method, reverse coating method, transfer roll coating method, microgravure coating method, kiss coating method, cast coating method, slot orifice coating method, calendar coating method And a die coating method.
- the coating agent for an antireflection film of the present invention is applied on a release film or the like or directly on a transparent substrate by the above-mentioned method, and then a coating film is formed by heating and drying, and then heated.
- the anti-reflection film of the present invention can be obtained by curing the coating by performing humidification, ultraviolet irradiation, electron beam irradiation, or the like.
- the antireflection film of the present invention preferably has a smooth surface.
- the term “smooth surface” means that the surface roughness Rz calculated by the method defined in JIS B 0601 is 0.2 ⁇ m or less.
- the anti-reflection film of the present invention prevents the entire surface from becoming whitish due to irregular reflection of light on the surface, and also prevents dirt such as fingerprints, sebum, sweat, and cosmetics from adhering to the surface. The dirt once adhered can be easily removed.
- the antireflection film of the present invention may further have a base material layer in addition to the layer using the coating agent for an antireflection film of the present invention.
- the antireflection film of the present invention has improved mechanical strength and improved handleability.
- the base material layer is not particularly limited as long as it is transparent. However, from the viewpoint of moldability and mechanical strength, for example, a material having a transparent resin or the like which can be used as the binder is preferable.
- the thickness of the antireflection film of the present invention is not particularly limited, but a preferable lower limit is 50 ⁇ m, and a preferable upper limit is 200 nm. If it is less than 50 nm, the abrasion resistance may be insufficient, and if it exceeds 200 nm, the film may be easily broken.
- the thickness of the base layer is not particularly limited, but a preferred lower limit is 3 ⁇ m and a preferred upper limit is 7 ⁇ m. If it is less than 3 m, the strength of the antireflection film of the present invention may be inferior. If it exceeds 3, the transparency of the antireflection film of the present invention may be inferior and visual information inside may be difficult to see.
- the present invention when used as fine particles constituting a low-refractive-index antireflection layer, it has excellent dispersibility in a binder component, prevents irregular reflection of light, and has a high alkali resistance,
- the present invention can provide a hollow resin fine particle, an organic / inorganic hybrid fine particle, and a method for producing a hollow resin fine particle capable of obtaining an antireflection layer.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were vacuum-dried to obtain hollow resin fine particles.
- a coating agent for an antireflection film was prepared by mixing 100 parts by volume of the obtained hollow resin fine particles and 800 parts by volume of toluene as a diluting solvent with respect to 100 parts by volume of polymethyl methacrylate as a binder.
- the obtained anti-reflection film coating agent was applied on a triacetyl cellulose (TAC) film and dried at 120 ° C. for 10 minutes to form an anti-reflection film having a thickness of 100 nm.
- TAC triacetyl cellulose
- duranate 21S manufactured by Asahi Kasei Chemicals Corporation
- 70 parts by weight of toluene as a non-polymerizable conjugate were mixed and the entire amount of the stirred solution was mixed with 10 parts by weight of ethylene glycol as a polyol component.
- dodecylbenzene as water-soluble emulsifier
- ion-exchanged water containing 2 parts by weight of sodium sulfonate and 2 parts by weight of cetyl alcohol as a dispersing aid, and forcibly emulsify with an ultrasonic homogenizer for 60 minutes to obtain polymerizable droplets having an average particle size of 60 nm.
- an ultrasonic homogenizer for 60 minutes to obtain polymerizable droplets having an average particle size of 60 nm.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles.
- the obtained hollow resin microparticles were analyzed with an electron microscope (S-3500N, manufactured by Hitachi High-Technologies Corporation).
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- a dispersion in which polymerizable droplets having a diameter of 65 nm were dispersed was prepared. After using a 20-L polymerization vessel equipped with a stirrer, jacket, reflux condenser, and thermometer, depressurizing the inside of the polymerization vessel to deoxygenate the vessel, and then replacing the atmosphere with nitrogen to create a nitrogen atmosphere inside. The resulting dispersion was charged, and the temperature of the polymerization vessel was raised to 80 ° C. to initiate polymerization. Polymerization was performed for 4 hours, and after an aging period of 1 hour, the polymerization vessel was cooled to room temperature.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles. Observation of the obtained hollow resin fine particles using an electron microscope (“S-3500N” manufactured by Hitachi High-Technologies Corporation) revealed that the shape was almost a true sphere.
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles.
- the obtained hollow resin microparticles were analyzed with an electron microscope (S-3500N, manufactured by Hitachi High-Technologies Corporation).
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles.
- the obtained hollow resin microparticles were analyzed with an electron microscope (S-3500N, manufactured by Hitachi High-Technologies Corporation).
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- Example 2 For the anti-reflection film, the same method as in Example 1 was used, except that porous silica particles having an average particle diameter of 60 nm and a refractive index of 1.36 were coated with an organic silicon compound as the low refractive index particles. Preparation of coating agent, formed antireflection film
- Polymerization was carried out using a 20 L polymerization vessel equipped with a stirrer, jacket, reflux condenser and thermometer. After the vessel was decompressed to deoxygenate the vessel, the inside of the vessel was replaced with nitrogen to form a nitrogen atmosphere, the resulting dispersion was charged, and the polymerization vessel was heated to 80 ° C to initiate polymerization. . Polymerization was performed for 4 hours, and after an aging period of 1 hour, the polymerization vessel was cooled to room temperature.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles.
- the obtained hollow resin microparticles were analyzed with an electron microscope (S-3500N, manufactured by Hitachi High-Technologies Corporation).
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- Duranate 21S manufactured by Asahi Kasei Chemicals Corporation
- lipophilic reaction component A 20 parts by weight and perfluorooctylethyl methacrylate as a radical polymerizable monomer component
- lipophilic reaction component C 10 weight parts 1 part by weight of azobisisobutyl nitrile as a polymerization initiator, 65 parts by weight of toluene as a non-polymerizable binder, and 5 parts by weight of hexadecane.
- the obtained slurry was dialyzed using a cellulose membrane having a molecular weight cut-off of 10,000 to remove excess surfactant and inorganic salts, and further filtered to remove aggregated particles and insoluble matter.
- the obtained resin fine particles were dried in vacuum to obtain hollow resin fine particles.
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained hollow resin fine particles were used, and an antireflection film was formed.
- An emulsifier was added to ion-exchanged water as a polar solvent adjusted to pH 9 in a 20-L polymerization vessel equipped with a stirrer, a jacket, a reflux condenser, and a thermometer, and stirring was started.
- the pressure was returned to atmospheric pressure with nitrogen, and the inside was set to a nitrogen atmosphere.
- a polymerizable silane coupling agent and a polymerizable monomer, ethyl acetate as a non-polymerizable organic solvent, and a azobisisobutymouth-tolyl mixed solution as a polymerization initiator were added to a polar solvent.
- the emulsion was emulsified to nano size to prepare a dispersion liquid in which polymerizable droplets having an average particle diameter of 62 nm were dispersed, and the polymerizable droplets were polymerized.
- the obtained slurry is dialyzed using a cellulose membrane having a molecular weight cutoff of 10,000 to remove excess surfactant and inorganic salts, and further to remove aggregated particles and insoluble components by filtration.
- a cellulose membrane having a molecular weight cutoff of 10,000 to remove excess surfactant and inorganic salts, and further to remove aggregated particles and insoluble components by filtration.
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained organic / inorganic hybrid fine particles were used, to form an antireflection film.
- the obtained slurry is dialyzed using a cellulose membrane having a molecular weight cutoff of 10,000 to remove excess surfactant and inorganic salts, and further to remove aggregated particles and insoluble components by filtration to remove organic and inorganic hybrid fine particles. Produced.
- a coating agent for an antireflection film was prepared in the same manner as in Example 1 except that the obtained organic / inorganic hybrid fine particles were used, to form an antireflection film.
- porous resin particles having an average particle diameter of 98 nm were produced.
- a coating agent for an antireflection film was prepared in the same manner as in Example 8, except that porous resin particles were used instead of the organic / inorganic hybrid fine particles produced in Example 8, to produce an antireflection film.
- Dynamic light scattering particle size distribution analyzer Particle Sizing Systems, NICOMP model 380 ZLS-Sj was used to measure the volume average particle diameter and the CV value of the particle diameter of the fine particles obtained in each of Examples and Comparative Examples.
- UV-3101PC manufactured by Shimadzu Corporation
- the reflectance on one side at 5 ° was measured.
- the refractive index of the particles is calculated. Calculated.
- the porosity of the fine particles obtained in each of the examples and comparative examples was calculated using the refractive index and the measured value of the obtained particles and the value of the refractive index of the resin portion of the particles calculated from the composition.
- the porosity calculated in this way showed a good agreement with the porosity of the particles calculated from the particle diameter of the fine particles and the film thickness force observed by an electron microscope.
- the antireflection film was subjected to 100 reciprocations under a load of 100 g Zcm 2 with a nonwoven fabric made of cellulose impregnated with a commercially available alkaline detergent, and the appearance of the film was visually observed, and judged according to the following criteria.
- Example 1 48 16 73 1.16 0.6 ⁇ Example 2 62 14 58 1.23 0.8 ⁇ Hollow resin Example 3 64 18 64 1.20 0.7 O Fine particles Example 4 72 19 52 1.28 1.0 O
- Example 5 42 18 70 1.17 0.6 ⁇ Comparative Example 1 62 ⁇ 20 1.36 1.8 X Hollow resin Example 6 78 16 70 1.15 0.6 ⁇ Fine particle Example 7 65 8 59 1.2 0.7 ⁇
- Example 8 62 20 71 1.18 0.6 ⁇ Organic 'inorganic
- the present invention when used as fine particles constituting a low-refractive-index antireflection layer, it is excellent in dispersibility in a binder component, prevents diffused reflection of light, has high alkali resistance, and has a high alkali resistance. , Organic and inorganic hybrid fine particles, and a method for producing hollow resin fine particles.
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- Compositions Of Macromolecular Compounds (AREA)
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- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006511957A JP4059912B2 (ja) | 2004-04-05 | 2005-03-16 | 中空樹脂微粒子、有機・無機ハイブリッド微粒子及び中空樹脂微粒子の製造方法 |
| KR1020067021059A KR101238514B1 (ko) | 2004-04-05 | 2005-03-16 | 중공 수지 미립자, 유기·무기 하이브리드 미립자 및 중공수지 미립자의 제조 방법 |
| US11/547,611 US7981511B2 (en) | 2004-04-05 | 2005-03-16 | Hollow resin fine particles, organic/inorganic hybrid fine particles, and method for producing hollow resin fine particles |
| EP05726692A EP1739116A4 (en) | 2004-04-05 | 2005-03-16 | FINE RESIN HOLLOW PARTICLES, FINE ORGANIC / INORGANIC HYBRID FINE PARTICLES, AND PROCESS FOR THE PRODUCTION OF HOLLOW FINE RESIN ARTICLES |
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| JP2004-111369 | 2004-04-05 | ||
| JP2004111369 | 2004-04-05 | ||
| JP2004258424 | 2004-09-06 | ||
| JP2004-258424 | 2004-09-06 | ||
| JP2004-318300 | 2004-11-01 | ||
| JP2004318300 | 2004-11-01 | ||
| JP2005022221 | 2005-01-28 | ||
| JP2005-022221 | 2005-01-28 |
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| WO2005097870A1 true WO2005097870A1 (ja) | 2005-10-20 |
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| PCT/JP2005/004688 Ceased WO2005097870A1 (ja) | 2004-04-05 | 2005-03-16 | 中空樹脂微粒子、有機・無機ハイブリッド微粒子及び中空樹脂微粒子の製造方法 |
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| US (1) | US7981511B2 (ja) |
| EP (1) | EP1739116A4 (ja) |
| JP (1) | JP4059912B2 (ja) |
| KR (1) | KR101238514B1 (ja) |
| TW (1) | TW200602365A (ja) |
| WO (1) | WO2005097870A1 (ja) |
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- 2005-03-16 KR KR1020067021059A patent/KR101238514B1/ko not_active Expired - Fee Related
- 2005-03-16 US US11/547,611 patent/US7981511B2/en not_active Expired - Fee Related
- 2005-03-16 JP JP2006511957A patent/JP4059912B2/ja not_active Expired - Fee Related
- 2005-03-16 WO PCT/JP2005/004688 patent/WO2005097870A1/ja not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2005097870A1 (ja) | 2008-02-28 |
| TW200602365A (en) | 2006-01-16 |
| EP1739116A1 (en) | 2007-01-03 |
| US7981511B2 (en) | 2011-07-19 |
| TWI379842B (ja) | 2012-12-21 |
| EP1739116A4 (en) | 2008-10-22 |
| US20070251422A1 (en) | 2007-11-01 |
| JP4059912B2 (ja) | 2008-03-12 |
| KR101238514B1 (ko) | 2013-02-28 |
| KR20070019713A (ko) | 2007-02-15 |
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