WO2003033591A1 - Composition photopolymerisable, et produit durci et stratifie en resultant - Google Patents
Composition photopolymerisable, et produit durci et stratifie en resultant Download PDFInfo
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- WO2003033591A1 WO2003033591A1 PCT/JP2002/010532 JP0210532W WO03033591A1 WO 2003033591 A1 WO2003033591 A1 WO 2003033591A1 JP 0210532 W JP0210532 W JP 0210532W WO 03033591 A1 WO03033591 A1 WO 03033591A1
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F261/00—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F261/00—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00
- C08F261/02—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols
- C08F261/04—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
- C08F291/06—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to oxygen-containing macromolecules
- C08F291/08—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to oxygen-containing macromolecules on to macromolecules containing hydroxy radicals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/72—Cured, e.g. vulcanised, cross-linked
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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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
- B32B2329/00—Polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals
- B32B2329/06—PVB, i.e. polyinylbutyral
Definitions
- the present invention relates to a curable composition, a cured product thereof, and a laminate. More specifically, it has excellent coating properties and various substrates [for example, polyester, polyolefin, epoxy resin, melamine resin, triacetyl cellulose resin such as polycarbonate, polymethyl methacrylate, polystyrene, MS resin, PET, etc. , ABS resin, AS resin, norbornene-based plastic, etc., metal, wood, paper, glass, slate, etc.], a coating film with high hardness, high refractive index, and excellent scratch resistance and transparency
- the present invention relates to a curable composition capable of forming a (coating), a cured product thereof, and a laminate.
- the curable composition, the cured product and the laminate of the present invention include, for example, plastic optical components, touch panels, film-type liquid crystal elements, plastic containers, flooring materials as building interior materials, wall materials, artificial marble, etc.
- curable compositions capable of forming cured films having a high refractive index are required.
- compositions have been proposed, but they have excellent coating properties as a curable composition, and when formed into a cured film, have high hardness and high refractive index. It has excellent abrasion resistance and adhesion to the substrate and the low refractive index layer used for the laminate described below. Further, when a low refractive index film is laminated on the cured film by coating, a low At present, a material having the characteristics of high reflectance and high chemical resistance has not yet been obtained.
- thermosetting polysiloxane composition As a material for an anti-reflection film, for example, a thermosetting polysiloxane composition is known, and is disclosed in JP-A-61-74743, JP-A-6-255599, This is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-33111 and Japanese Patent Application Laid-Open No. H10-23231.
- thermosetting polysiloxane composition has poor scratch resistance and, as a result, poor durability.
- JP-A-8-94806 a high-refractive-index film in which fine particles are localized in a high-refractive-index binder resin on a base material, and a fluorine-based film.
- an antireflection film material in which a low refractive index film made of a polymer is sequentially laminated. More specifically, to form a high-refractive-index film, a fine particle layer of metal oxide particles or the like is previously formed on process paper, and then pressed against a high-refractive-index binder-resin on a substrate. As a result, the fine particle layer is buried in the high refractive index binder resin to make it polar.
- the low-refractive index film is a resin composition comprising a fluorine-containing copolymer comprising vinylidene fluoride and hexafluoropropylene, a polymerizable compound having an ethylenically unsaturated group, and a polymerization initiator. Is cured to form a thin film.
- thermosetting polysiloxane composition has poor scratch resistance and, as a result, poor durability.
- the present application has been made in view of the above-described problems, and provides a curable composition capable of obtaining a cured product having excellent scratch resistance and transparency, and a cured product and a laminate including the curable composition.
- the purpose is to do.
- the present inventors have conducted intensive studies to achieve the above object. As a result, the present inventors have found that they include: oxide particles of a specific element, The present inventors have found that a photo-curable composition that satisfies the above-mentioned properties can be obtained, thereby completing the present invention. That is, the present invention provides the following photocurable composition, a cured product thereof, and a laminate. Disclosure of the invention
- a photocurable composition comprising: a hydroxyl group-containing polymer having a molecular weight of 1000 or more; and (C) a polyfunctional (meth) acrylate.
- the oxide particles (A) used in the present invention are selected from the group consisting of silicon, aluminum, zirconium, titanium, zinc, germanium, indium, tin, antimony and cerium from the viewpoint of the colorlessness of the cured film obtained from the curable composition.
- Oxide particles of at least one element selected from the group consisting of silica, alumina, zirconia, titanium oxide, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide (ITO) , Antimony oxide, oxidation containing antimony Examples include particles of tin (ATO) and cerium oxide. Among them, silica, alumina, zirconium and antimony oxide particles are preferred from the viewpoint of high hardness. These oxide particles (A) can be used alone or in combination of two or more.
- the oxide particles (A) are preferably in the form of a powder or a solvent-dispersed sol.
- the dispersion medium is preferably an organic solvent from the viewpoint of compatibility with other components and dispersibility.
- organic solvents include alcohols such as methanol, ethanol, isopropanol, butanol and octanol; ketones such as acetone, methylethyl ketone, methyl isobutyl ketone and cyclohexanone; ethyl acetate, butyl acetate and lactic acid.
- Esters such as ethylene, monobutyl lactone, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate; ethers such as ethylene daricol monomethyl ether and diethylene glycol monobutyl ether; benzene, toluene And xylene and the like; and amides such as dimethylformamide, dimethylacetamide and N-methylpyrrolidone.
- methanol, isopropanol, butanol, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate, toluene and xylene are preferred.
- the number average primary particle diameter of the oxide particles (A) is preferably from 0.001 m to 2 m, more preferably from 0.001; «m to 0.2; wm, more preferably from 0.01 m ⁇ 0.1 is particularly preferred. If the number average primary particle diameter exceeds 2 m, the transparency of the cured product tends to decrease, and the surface condition of the coating tends to deteriorate. On the other hand, if the average primary particle diameter is less than 0.001 m, sufficient scratch resistance cannot be obtained. Various surfactants and amines may be added to improve the dispersibility of the particles.
- the shape of the oxide particles (A) is spherical, hollow, porous, rod-like, plate-like, fibrous, or irregular, and is preferably spherical.
- the specific surface area (by BET specific surface area measurement using nitrogen) of the oxide particles (A) is preferably from 100 to 100 m 2 / g, more preferably from 100 to 500 m 2 / g. 0 is 0 m 2 / g.
- These oxide particles (A) can be used in the form of dry powder or dispersed in water or an organic solvent.
- a dispersion liquid of fine oxide particles known in the art as a solvent dispersion sol of the above oxide can be directly used.
- the use of a solvent dispersion sol of an oxide is preferred.
- silicon oxide particles for example, silica particles
- colloidal silica manufactured by Nissan Chemical Industries, Ltd.
- As the powdered silica Nippon Aerosil Co., Ltd. product names: AEROSIL 130, AEROSIL 300, AEROSIL 380, AEROSIL TT 600, AEROSIL 0X50, Asahi Glass Co., Ltd.
- Zirconia particles dispersed in toluene are manufactured by Sumitomo Osaka Cement Co., Ltd.
- Zinc antimonate particles dispersed in water are manufactured by Nissan Chemical Industry Co., Ltd.
- As water dispersion sol of ATO particles Ishihara Sangyo Product name: SN-100D; manufactured by Mitsubishi Materials Co., Ltd. as ITO powder
- the amount of the oxide particles (A) to be added is preferably 5 to 99% by weight, more preferably 10 to 98% by weight, based on 100% by weight of the photocurable composition. 2.
- the oxide particles (A) used in the present invention are an organic compound containing a polymerizable unsaturated group.
- (R) (hereinafter referred to as “organic compound (R)”) is suitably used as a reactive particle (RA) to which is bound.
- the organic compound (R) used in the present invention is a compound containing a polymerizable unsaturated group in the molecule, and is preferably a specific organic compound containing a group represented by the following formula (1).
- X represents NH, 0 (oxygen atom) or S (io atom), and Y represents 0 or S.
- the organic compound (R) is preferably a compound having a silanol group in the molecule or a compound which generates a silanol group by hydrolysis.
- the polymerizable unsaturated group contained in the organic compound (R) is not particularly limited. Examples thereof include an acryloyl group, a methacryloyl group, a vinyl group, a propenyl group, a butagenyl group, a styryl group, an ethynyl group, and a cinnamoyl group. , Maleate group and acrylamide group can be mentioned as preferred examples.
- This polymerizable unsaturated group is a structural unit that undergoes addition polymerization using an active radical.
- the specific organic compound may have the group represented by the formula (1) alone or in combination of two or more.
- Organic compound (R) is a compound having a silanol group in the molecule (hereinafter referred to as “silanol group-containing compound”) or a silanol group by hydrolysis. Is preferable (hereinafter, referred to as “silanol group-forming compound”).
- Examples of such a silanol group-forming compound include compounds in which a silicon atom is bonded with an alkoxy group, an aryloxy group, an acetyloxy group, an amino group, a halogen atom, or the like.
- a compound having an aryloxy group bonded thereto, that is, an alkoxysilyl group-containing compound or an aryloxysilyl group-containing compound is preferred.
- the silanol group or the silanol group-forming site of the silanol group-forming compound is a constituent unit that is bonded to the oxide particles (A) by a condensation reaction or a condensation reaction that occurs after hydrolysis.
- Preferred specific examples of the organic compound (R) include, for example, a compound represented by the following formula (2). i—Z) Equation (2)
- RR 2 and R 3 each independently represent a hydrogen atom, an alkyl group or an aryl group, at least one of which is a hydroxy group, an alkoxy group or an aryloxy group.
- these alkoxy groups and alkyl groups those having 1 to 8 carbon atoms are preferable, and specifically, methoxy, ethoxy, propoxy, butoxy, octyloxy, methyl, ethyl, propyl, butyl groups And an octyl group.
- the aryloxy group and aryl group are preferably those having 6 to 18 carbon atoms, and specifically, phenoxy group, xyloxy group, phenyl group, xylyl group and the like are preferable.
- Examples of the group represented by R 1 (R 2 ) (R 3 ) Si— include, for example, a trimethoxysilyl group, a triethoxysilyl group, a triphenyloxysilyl group, a methyldimethoxysilyl group, and a dimethylmethoxysilyl group. Can be mentioned. Among these groups, a trimethoxysilyl group or a triethoxysilyl group is preferable.
- R 4 represents a divalent organic group having an aliphatic or aromatic structure having 1 to 12 carbon atoms, and the structure may include a chain, branched or cyclic structure.
- a structural unit examples include an aliphatic group such as methylene, ethylene, propylene, methylethylene, butylene, methylpropylene, octamethylene and dodecamethylene; an alicyclic group such as cyclohexylene; phenylene; Examples include aromatic groups such as methylphenylene, 3-methylphenylene, and biphenylene. Preferred examples among these are methylene, propylene, cyclohexylene, phenylene and the like.
- R 5 represents a divalent organic group, molecular weight of 10,000 or less, particularly molecular weight 1 0 0 0 less favored arbitrariness.
- these organic groups include divalent organic groups having an aliphatic or aromatic structure, and the structure may include a chain, branched or cyclic structure.
- Examples of such structural units include those having a chain structure skeleton such as methylene, ethylene, propylene, tetramethylene, hexamethylene, 2,2,4-trimethylhexamethylene, and 1- (methylcarboxyl) -pentamethylene.
- Divalent organic groups having an alicyclic skeleton such as isophorone, cyclohexylmethane, methylenebis (4-cyclohexane), hydrogenated genylmethane, hydrogenated xylene, and hydrogenated toluene; and It can be selected from divalent organic groups having an aromatic ring skeleton, such as benzene, toluene, xylene, paraphenylene, diphenylmethane, diphenylpropane, and naphthalene.
- R 6 is a (q + 1) -valent organic group, and is preferably selected from linear, branched or cyclic saturated hydrocarbon groups and unsaturated hydrocarbon groups.
- Z represents a monovalent organic group having a polymerizable unsaturated group.
- Acryloyl a monovalent organic group having a polymerizable unsaturated group.
- (Oxy) group meta-atariloyl (oxy) group, vinyl (oxy) group, probenyl (oxy) group, butagenyl (oxy) group, styryl (oxy) group, ethynyl (oxy) group, cinnamoyl (oxy) group Group, maleate group, acrylamide group, methacrylamide group and the like.
- an acryloyl (oxy) group and a methacryloyl (oxy) group are preferred.
- q is preferably an integer of 1 to 20, more preferably an integer of 1 to 10, and particularly preferably an integer of 1 to 5.
- a method described in Japanese Patent Application Laid-Open No. 9-110111 can be used.
- the alkoxysilane compound is separately subjected to a hydrolytic operation, and then mixed with the powdered oxide particles or a solvent dispersion sol of the oxide particles, and heated and stirred.
- the temperature is preferably from 0 ° C to 150 ° C, more preferably from 20 ° C to 100 ° C. Processing times are usually in the range of 5 minutes to 24 hours.
- an organic solvent may be added for the purpose of smoothly and uniformly reacting with the alkoxysilane compound.
- an organic solvent the same organic solvent as that used as the dispersion medium of the solvent dispersion sol of the oxide particles can be used.
- the amount of these solvents to be added is not particularly limited as long as the reaction is carried out smoothly and uniformly.
- the reactive particles (RA) can be produced by mixing at least the solvent-dispersed sol and the organic compound (R).
- an organic solvent that is uniformly compatible with water may be added for the purpose of ensuring uniformity in the initial stage of the reaction and smoothly proceeding the reaction.
- an acid, salt or base may be added as a catalyst to promote the reaction.
- the acid include inorganic acids such as hydrochloric acid, nitric acid, sulfuric acid, and phosphoric acid; organic acids such as methanesulfonic acid, toluenesulfonic acid, phthalic acid, malonic acid, formic acid, acetic acid, and oxalic acid; methacrylic acid and acrylic acid And unsaturated organic acids such as itaconic acid, as salts, for example, ammonium salts such as tetramethylammonium hydrochloride and tetratrapylammonium hydrochloride, and as the base, for example, ammonia water Primary, secondary or tertiary aliphatic amines such as getylamine, triethylamine, dibutylamine and cyclohexylamine, aromatic amines such as pyridine, sodium hydroxide, potassium hydroxide,
- the acid are an organic acid and an unsaturated organic acid
- the base is a tertiary amine or a quaternary ammonium hydroxide.
- the amount of the acid, salt or base added is preferably 0.01 to 1 part by weight, more preferably 0.01 to 1 part by weight, based on 100 parts by weight of the alkoxysilane compound. 1 part by weight.
- a dehydrating agent to promote the reaction.
- a dehydrating agent inorganic compounds such as zeolite, anhydrous silica, and anhydrous alumina, and organic compounds such as methyl orthoformate, ethyl ethyl orthoformate, tetraethoxymethane, and tetrabutoxymethane can be used. Among them, organic compounds are preferred, and orthoesters such as methyl orthoformate and ethyl ethyl formate are more preferred.
- the amount of the alkoxysilane compound bound to the reactive particles (RA) is usually defined as the constant weight of the weight loss% when the dry powder is completely burned in air at 110 ° C in air. From 800 ° C. to 800 ° C.
- the content of the oxide particles (A) in the reactive particles (RA) is preferably from 5 to 99% by weight, and more preferably from 10 to 99% by weight.
- the amount of the organic compound (R) bonded to the oxide particles (A) is less than 1% by weight, the dispersibility of the reactive particles (RA) in the composition is insufficient, and the obtained cured product is transparent. Properties and abrasion resistance may not be sufficient.
- the amount of the reactive particles (RA) means a solid content.
- the amount of the reactive particles (RA) does not include the amount of the solvent.
- any polymer having a hydroxyl group in the molecule can be suitably used. More specifically, one or a combination of two or more of a polyvinyl alcohol resin, a polyacrylic resin, a nopolak resin, a polyphenol resin such as a resin resin, a polyphenol resin, and a polyparavinylphenol.
- a polyvinyl alcohol resin include a polyvinyl acetal resin such as a polyvinyl butyral resin and a polyvinyl formal resin, and a polyvinyl alcohol resin.
- Polyvinyl butyral resin is most preferred because it is excellent in water resistance and the oxide particles are relatively easily dispersed uniformly.
- polyvinyl butyral resins include Denka Butyral, manufactured by Denki Kagaku Kogyo Co., Ltd., 2000, 2003, 2003, 2003, 2004, Sekisui Chemical ( Eslek B, Eslek K, and the like.
- the amount of the hydroxyl group-containing polymer (B) is preferably in the range of 0.01 to 20% by weight, based on 100% by weight of the photocurable composition. It is more preferable to set the value in the range of 5 to 10% by weight. The reason for this is that if the amount of the hydroxyl group-containing polymer added is less than 0.01% by weight, the resulting cured film may have reduced abrasion resistance. If the content exceeds 20 parts by weight, the amount of the oxide fine particles relatively decreases, making it difficult to adjust the refractive index of the cured film, and lowering the dispersibility of the oxide particles and impairing the storage stability of the dispersion. This is because there are cases.
- Polyfunctional (meth) acrylates (C) are compounds containing at least two (meth) acryloyl groups in the molecule, and are suitably used to enhance the film formability of the composition.
- dipentaerythritol hexa (meth) acrylate dipentaerythritol penta (meth) acrylate, pen erythritol tetra (meth) acrylate, and ditrimethylolpropanetetra (meth) acrylate are preferred.
- Such a component (C) include, for example, trade names manufactured by Toagosei Co., Ltd .: Aronix M-400, M-408, M-450, M-305, M-309, M-310, M—315, M—320, M—350, M—360, M_2 08, M—210, M—215, M—220, M—225, M—233, M-240, M-245, M— 260, M-270, M—1100, M—1200., M—1210, M-1310, M—1600, M—221, M—203, TO—924, TO—1270, TO—1231, TO — 595, TO—756, TO-1343, TO—902, TO—904, TO—905, TO—1330, manufactured by Nippon Kayaku Co., Ltd.
- a melamine (meth) acrylate compound can also be suitably used as the polyfunctional (meth) acrylate (C). It is preferably a compound represented by the following formula (3) or (4) or a mixture thereof.
- Melamine 'formaldehyde ⁇ an alkyl monoalcohol condensate having 1 to 12 carbon atoms, and 2-hydroxyethyl More preferably, it is a condensate with acrylate.
- the melamine (meth) acrylate compound in the present invention means a (meth) acrylate compound having a melamine ring in the molecule.
- the melamine (meth) acrylate compound is suitably used to increase the refractive index when a cured product is obtained and to improve the scratch resistance and transparency of the laminate.
- R 1 and .R 2 in the above formula (3) may have any structure as long as they are monovalent organic groups, but at least one of them is preferably a structure represented by the following formula (5). No.
- Equation ( 5) X in the formulas (3), (4) and (5) is each independently an alkyl group having 1 to 5 carbon atoms or a (meth) acryloyloxyalkyl group, at least one of which is Is a (meth) acryloyloxyalkyl group.
- alkyl group include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group.
- Examples of the (meth) acryloyloxyalkyl group include, for example, an acryloyloxyshethyl group, a methacryloyloxyshethyl group, an acryloyloxyisopropyl group, a methylacryloyloxyisopropyl group, and an acryloyl group.
- N in the formula (3) is an integer of 1 to 1'0.
- composition of the present invention may contain a compound having one polymerizable unsaturated group in the molecule, if necessary, in addition to the component (C).
- the compounding (content) amount of the component (C) used in the present invention is preferably 5 to 80% by weight based on 100% by weight of the photocurable composition, and 10 to 75% by weight. More preferred.
- the addition amount is less than 5% by weight, when the curable composition is cured, the resulting cured product may have insufficient film formability. If the amount exceeds 10% by weight, it is difficult to adjust the refractive index of the cured film, and the abrasion resistance may be insufficient.
- an acid generator (D) can be blended as a blending component other than the reactive particles (RA), (B) and (C).
- Examples of such an acid generator (D) include, but are not particularly limited to, a compound capable of thermally generating a thione species and a compound capable of generating a cationic species by irradiation with radiation (light). it can.
- Examples of the compound that thermally generates a cationic species include, for example, aliphatic sulfonic acid, aliphatic sulfonic acid salt, aliphatic carboxylic acid, aliphatic carboxylic acid salt, aromatic carboxylic acid, aromatic carboxylic acid salt, alkylbenzene sulfonic acid And alkylbenzenesulfonates, phosphates, and metal salts.
- an ionic salt having a structure represented by the following formula (6) can be mentioned as a preferred example.
- This onium salt is a compound that releases a Lewis acid when exposed to light + j [MY j + k ] — j expression (6)
- W is S, Se, Te, P, As, Sb, Bi, 0, I, Br, Cl, or N ⁇ N—
- R 8 , R 9 , R 1 ( and R 11 are the same or different organic groups, d, e, f, and g are each an integer of 0 to 3, and h is (d + e + f + g) where the value of W is An integer determined by being equal to the product of a number and h.
- M is a metal or metalloid constituting the central atom of the halide complex [MY j + k ], for example, B, P, As, Sb, Fe, Sn, Bi, A1, Ca, In, Ti, Zn, Sc, V, Cr, Mn, Co and the like.
- Y is, for example, a halogen atom such as F, C1, Br, etc.
- j is the net charge of the halide complex ion
- k is the valence of Y.
- MY j + k in the above formula (6) include tetrafluoroborate (BF 4 _), hexafluorophosphate (PF 6 —), hexafluoroantimonate ( SbF 6 I)., to hexa full O b arsenate titanate (AsF 6 I), to can be exemplified friendly Roroanchimone Ichito (S bC 1 6 I) and the like.
- an anion salt having an anion represented by the formula [MY k (OH) ⁇ ] can also be used.
- perchlorate ion (cio 4 -) preparative Riffle O b methanesulfonic acid ion (CF 3 S0 3 I)
- a full-O Ross sulfone acid ion (FS0 3 -) toluenesulfonic acid ion, trinitrobenzene sulfonic acid anion
- An anionic salt having another anion such as an ion or a trinitrotoluenesulfonic acid anion may be used.
- the acid generator (D) examples include products manufactured by Mitsui Cytec Co., Ltd .: Catarist 4040, Catarist 4050, Catarist 600, Catarist 602, manufactured by Union Rikibaido Co., Ltd.
- Catalyst 4040, Catalyst 4050, Catalyst List 600, Catalyst List 602, Adeka Obtomer SP—150, SP—170, SP—171, CD-1012, MP1—103, Sun Aid SI—100 (L), SI—L 145, 31-150 are preferred because they can improve the scratch resistance of the cured film without impairing the storage stability of the dispersion.
- the acid generator (D) used as required in the present invention is preferably incorporated in an amount of 0.01 to 20% by weight, based on 100% by weight of the photocurable composition. 1 to 10% by weight is more preferred. If the amount is less than 0.01% by weight, the effect of the addition of the acid generator may not be exhibited. On the other hand, if the amount of the curing catalyst exceeds 20% by weight, the transparency of the cured product becomes poor. This is because the storage stability of the high-refractive-index material may be reduced.
- the amount of the curing catalyst is more preferably in the range of 0.5 to 20% by weight, and more preferably in the range of 1 to 10% by weight, based on 100% by weight of the conductive metal oxide fine particles. It is more preferable to set the value within.
- a surfactant or a polymer flocculant may be added.
- surfactant examples include, for example, nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants in terms of ionic species.
- examples thereof include silicone surfactants, polyalkylene oxide surfactants, and fluorine-containing surfactants.
- polymer flocculant examples include aminoalkyl (meth) acrylate quaternary salt (co) polymer, polyaminomethyl acrylamide salt, polyethyleneimine, cationic polymer flocculants such as cationized starch and chitosan, and acrylic acid.
- examples include side adducts and nonionic polymer flocculants such as polyalkylenepolyamines.
- the photopolymerization initiator is used to cure the composition.
- photopolymerization initiators include 1-hydroxycyclohexyl phenyl ketone, 2,2-dimethoxy-2-phenylacetophenone, xanthone, fluorenone, benzaldehyde, fluorene, anthraquinone, triphenylamine, kytrazole, 3 —Methylacetophenone, 4—Chlorobenzone, 4, 4 '—Di Methoxy benzophenone, 4,4 'diaminobenzophenone, Michler's ketone, benzoin propyl ether, benzoine ethyl ether, benzyl dimethyl ketal, 11- (4-isopropylphenyl) _2-hydroxy-12- Methylpropane-1-one, 2-hydroxy-2-methyl-11-phenylpropane, thioxanthone, getylthioxanthone, 2-isopropylthioxanthone, 2-cloththioxanthone,
- the photopolymerization initiator contains at least 1-hydroxycyclohexylphenolketone.
- the content of 1-hydroxycyclohexylphenyl ketone in the photocurable composition is preferably 1 to 5% by weight.
- the addition amount of the photopolymerization initiator is preferably 10% by weight or less.
- the photopolymerization initiator itself acts as a plasticizer, and the hardness of the cured product may decrease.
- the curable composition of the present invention preferably contains an organic solvent in addition to the above components (A) to (D).
- the organic solvent is not particularly restricted but includes, for example, methyl ethyl ketone, methyl isobutyl ketone, 2-butanone, cyclohexanone, acetyla Ketones such as setone, alcohols such as ethanol, isopropyl alcohol, n-butanol, diacetone alcohol, 3-propoxy-11-propanol, and ether groups such as ethyl ethyl sorb, butyl ethyl sorb, and propylene glycol monomethyl ether Alcohols, hydroxyesters such as methyl lactate, ethyl lactate, butyl lactate, etc., i3-ketoesters such as ethyl acetate, methyl acetate, and ethyl acetate, aromatic hydrocarbons such as toluene and xylene, n-o It is preferable to use at least one organic solvent selected from the group consisting of aliphatic hydrocarbons such as butan
- the organic solvent is added so that the total solid content of the curable composition is 0.5 to 75%. That is, the amount of the organic solvent to be added is preferably a value within the range of 33.3 to 1900 parts by weight when the total solid content is 100 parts by weight.
- the reason for this is that if the amount of the organic solvent added is less than 33.3 parts by weight, the viscosity of the curable composition may increase and the applicability may decrease. If the amount exceeds the above-mentioned parts, the thickness of the obtained cured product may be too thin, and sufficient abrasion resistance may not be exhibited.
- the curable composition of the present invention contains a photosensitizer, a polymerization inhibitor, a polymerization initiator, a leveling agent, a wettability improver, a surfactant, as long as the object and effects of the present invention are not impaired.
- An additive such as a plasticizer, an ultraviolet absorber, an antioxidant, an antistatic agent, an inorganic filler, a pigment, or a dye may be further contained.
- the curable composition of the present invention can be prepared by adding the above components (A) to (D), an organic solvent, and if necessary, additives, and mixing at room temperature or under heating. It can. Specifically, it can be prepared using a mixer such as a mixer, a kneader, a ball mill, and a three-roll mill. However, when mixing under heating conditions, it is preferable to perform the reaction at a temperature equal to or lower than the decomposition initiation temperature of the polymerization initiator and the acid generator.When forming a thin film of 1 m or less, if necessary, The curable composition may be diluted with an organic solvent and applied. 10. Composition application method
- the composition of the present invention is suitable for use as an antireflection film or a coating material.
- substrates to be subjected to antireflection or coating include, for example, polycarbonate, polymethyl methacrylate, polystyrene, MS resin, and PET.
- plastics such as polyester, polyolefin, epoxy resin, melamine resin, triacetyl cellulose resin, ABS resin, AS resin, norbornene resin, metal, wood, paper, glass, slate and the like.
- These substrates may be in the form of a plate, a film, or a three-dimensional molded body.
- the coating method is a usual coating method, for example, date coating, spray coating, flow coating, shower coating, roll coating, spin coating, brush coating, etc. Can be mentioned.
- the thickness of the coating in these coatings after drying and curing is usually from 0.1 to 400 m, preferably from 1 to 200 m.
- the curing conditions of the curable composition are not particularly limited.
- the exposure is preferably set to a value in the range of 0.01 to 10 J / cm 2 .
- the exposure amount it is more preferable to set the exposure amount to a value in the range of 0.1 to 5 J / cm 2 , and more preferably to a value in the range of 0.3 to 3 J / cm 2. preferable.
- the cured product of the present invention can be obtained by coating and curing the curable composition on various substrates, for example, a plastic substrate.
- the composition is coated, preferably after drying the volatile components at 0 to 200 ° C., and then subjected to the above-described curing treatment with heat and / or radiation to obtain a coated molded article.
- Preferred curing conditions with heat are from 20 to 150 ° C. and are carried out in the range from 10 seconds to 24 hours.
- radiation it is preferable to use ultraviolet rays or electron beams.
- the preferable irradiation amount of the ultraviolet light is 0.01 to 10 J / cm 2 , and more preferably 0.1 to 2 J / cm 2 .
- Electron beam irradiation conditions are as follows: applied voltage is 10 to 300 KV, electron density is 0.02 to 0.30 mAZ cm 2 , and electron beam irradiation amount is 1 to: IOM rad is there.
- the cured product of the present invention has a feature that it has a high hardness and a high refractive index and can form a coating film (coating film) having excellent scratch resistance and adhesion to the substrate and the low refractive index layer. Therefore, it is particularly suitably used as an antireflection film for a film-type liquid crystal element, a touch panel, a plastic optical component and the like.
- the laminate of the present invention is obtained by laminating a cured film having a high refractive index and a film having a low refractive index obtained by curing the curable composition on a substrate in this order, and is particularly suitable as an antireflection film. is there.
- the substrate used in the present invention is not particularly limited.
- the above-mentioned plastics polycarbonate, polymethyl methyl acrylate, polystyrene, polyester, polyolefin, epoxy resin, melamine resin
- Triacetyl cellulose resin ABS resin, AS resin, norbornene-based resin, etc.
- Examples of the low-refractive-index film used in the present invention include a metal oxide film having a refractive index of 1.38 to 1.45, such as magnesium fluoride and silicon dioxide, and a cured film of a fluorine-based coating material. be able to.
- a method of forming a low refractive index film on a high refractive index cured film obtained by curing the curable composition for example, in the case of a metal oxide film, there are vacuum deposition, sputtering, and the like.
- a cured film of a fluorine-based coating material the same method as the method for applying (coating) the composition described above can be used.
- the laminate of the present invention has low reflectance and excellent chemical resistance, it is particularly suitably used as an antireflection film for a film-type liquid crystal element, a touch panel, a plastic optical component, and the like.
- Spherical zirconia fine powder manufactured by Sumitomo Osaka Cement Co., Ltd .; number average primary particle size: 0.01 ⁇ m
- 300 parts of methyl ethyl ketone (MEK) was added to 700 parts to form glass beads.
- the mixture was dispersed for 168 hours, and the crow beads were removed to obtain 950 parts of methyl ethyl ketone zirconazole (A-1).
- After 2 g of the dispersed sol was weighed on an aluminum dish, it was dried on a hot plate at 120 ° C. for 1 hour, weighed, and the solid content was found to be 30%.
- the short-axis average particle diameter was 15 nm
- the long-axis average particle diameter was 20 nm
- the aspect ratio was 1.3.
- the mixture was further stirred for 3 hours.
- reactive particles RA-1 reactive particles (hereinafter referred to as “reactive particles RA-1”). After weighing 2 g of this reactive particle RA-1 in an aluminum dish, it was dried on a hot plate at 120 ° C. for 1 hour and weighed to obtain a solid content of 31%.
- a needle-like ATO dispersion (FSS-10M, manufactured by Ishihara Techno Co., Ltd., dispersing solvent methyl ethyl ketone, solid content 30% by weight, short axis average particles of AT 0 fine powder) Diameter 15 nm, long axis average particle diameter 150 nm, aspect ratio 10) 95 parts, 0.8 part of the organic compound having a polymerizable unsaturated group synthesized in Synthesis Example 1, 0.1 part of distilled water, The mixture was mixed with 0.01 part of p-hydroxyphenyl monomethyl ether and heated and stirred at 65 ° C.
- FSS-10M needle-like ATO dispersion
- reactive particles RA-2 reactive particles (hereinafter, referred to as “reactive particles RA-2”).
- the solid content of the reactive particles RA-2 and the inorganic content in the solid content were determined in the same manner as in Synthesis Example 1, and found to be 30% and 88%, respectively.
- Example 4 In the same manner as in Example 1 except that a mixture of the reactive particles RA-1 obtained in Synthesis Example 2 and the reactive particles RA-2 obtained in Synthesis Example 3 was used instead of the reactive particles RA-1, The compositions of Example 4 and Comparative Example 2 shown in Table 1 were obtained.
- Example 6 shown in Table 1 was obtained in the same manner as in Example 1 except that the oxide particles A-1 obtained in Dispersion Example 1 were used instead of the reactive particles RA-1.
- Example 7 Hydroxy group-containing polymer B_ 1, Petitiral resin (B-2) 0.01 part (manufactured by Denki Kagaku Kogyo Co., Ltd.) Trade name Denkabutyral 3000-2 (weight average molecular weight 104000, polyvinyl alcohol unit 19wt%, glass A composition of Example 7 shown in Table 1 was obtained by the same operating method as in Example 1 except that the transition point was 73 ° C).
- the intrinsic viscosity (using N, N-dimethylacetamide solvent, measurement temperature: 25 ° C) of the obtained fluoropolymer having a hydroxyl group was 0.28 dlZg.
- the glass transition temperature of the fluoropolymer was measured using a differential scanning calorimeter (DSC) at a temperature rising rate of 5 ° C for minutes and in a nitrogen stream, and was 31 ° C. .
- DSC differential scanning calorimeter
- the fluorine content of the fluoropolymer was measured by using the alizarin complexon method and found to be 51.7%.
- the hydroxyl value of the fluoropolymer was measured by an acetylation method using acetic anhydride, and was found to be 102 mgKOH / g.
- the refractive index of the low refractive index film obtained from the obtained curable composition for low refractive index film (coating solution A) was measured. That is, the curable composition for a low refractive index film was coated on a silicon wafer (film thickness lm) using a wire bar coater (# 3), and air-dried at room temperature for 5 minutes to form a coating film. .
- the coating film was heated and cured in a hot air dryer at 140 ° C. for 1 minute to form a low refractive index film having a thickness of 0.3 m.
- the refractive index of the Na—D line in the obtained low refractive index film was measured using a spectroscopic ellipsometer at a measurement temperature of 25 ° C. As a result, the refractive index was 1.40.
- a UV-curable hard coat material Z 7503 (solid content concentration 50%, manufactured by JSR Corporation) was coated on a polyester film A4300 (manufactured by Toyobo Co., Ltd.) using a wire barco (# 20). 188 m), and dried in an oven at 80 ° C. for 1 minute to form a coating film.
- the coating film was ultraviolet-cured in the air using a metal halide lamp under a light irradiation condition of 0.3 J / cm 2 to form a hard coat layer having a film thickness of 10.
- compositions obtained in Examples 1 to 9 of the present invention and Comparative Examples 1 to 5 were coated on a hard coat layer using a coater equipped with a wire par according to the film thickness, The coating was dried in an oven at 80 ° C. for 1 minute to form a coating film. Next, the coating film was cured with ultraviolet rays in the air using a metal halide lamp under a light irradiation condition of 0.3 J / cm 2 to form a high refractive index film (intermediate layer) having a film thickness shown in Table 1.
- the obtained coating solution A was applied on a high refractive index film (intermediate layer) using a wire bar coater (# 3), and air-dried at room temperature for 5 minutes to form a coating film.
- This coating film was heated in an oven at 140 ° C. for 1 minute to form a low refractive index film having a thickness of 0.1 ⁇ m to obtain an antireflection film laminate.
- the scratch resistance of the obtained antireflection film laminate was evaluated according to the following criteria.
- the scratch resistance, reflectance, turbidity (haze value), and total light transmittance of the obtained antireflection film laminate were measured by the following measurement methods.
- a scratch resistance of rating 3 or more is within a practically acceptable range, and a scratch resistance of rating 4 or more is preferable because of excellent practical durability. In this case, it is more preferable since the practical durability is remarkably improved.
- the reflectance (minimum reflectance in the measurement wavelength range) of the obtained anti-reflection film laminate was measured using a spectral reflectance measuring device (spectrophotometer U-3410 incorporating a large sample chamber integrating sphere accessory device 150-09090, Hitachi). (Manufactured by Seisakusho Co., Ltd.) according to JIS K7105 (measurement method A) in the wavelength range of 340 to 70011111. That is, the minimum reflectance of the antireflection film laminate (antireflection film) at each wavelength was measured with the reflectance of the aluminum deposition film as a reference (100%). Table 1 shows the obtained results.
- the haze value and the total light transmittance of the obtained antireflection film laminate were measured using a color haze meter (manufactured by Suga Test Instruments Co., Ltd.) in accordance with JIS K7105. Table 1 shows the obtained results. table 1
- the reactive particles (RA) indicate the dry weight (excluding organic solvent) of the fine powder contained in the charged amount of each dispersion sol.
- RA-2 Reactive needle-like AT 0 fine powder sol produced in Synthesis Example 3
- Bl Petilal resin (Denka Butyral 2000—L) (Denki Kagaku Kogyo Co., Ltd.)
- B-2 Petilal resin (Denka Butyral 3000—2)
- B-3 Nopolak resin (Arakawa Chemical Co., Ltd. KP) — 91 1)
- MEK Methylethyl ketone Industrial applicability
- a coating film having excellent coatability, and having excellent hardness, high refractive index, and excellent scratch resistance and transparency on the surface of various substrates.
- a curable composition capable of forming a cured product, a cured product thereof, and a laminate can be provided.
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
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Description
Claims
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US10/491,161 US20040254282A1 (en) | 2001-10-11 | 2002-10-10 | Light curable composition, and cured product and laminate therefrom |
EP02775317A EP1447427A4 (en) | 2001-10-11 | 2002-10-10 | PHOTOPOLYMERIZABLE COMPOSITION, AND CURED PRODUCT AND LAMINATE RESULTING THEREFROM |
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JP2001314128A JP2003119207A (ja) | 2001-10-11 | 2001-10-11 | 光硬化性組成物、その硬化物、及び積層体 |
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US (1) | US20040254282A1 (ja) |
EP (1) | EP1447427A4 (ja) |
JP (1) | JP2003119207A (ja) |
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2002
- 2002-10-10 WO PCT/JP2002/010532 patent/WO2003033591A1/ja active Application Filing
- 2002-10-10 KR KR1020047005254A patent/KR20050035141A/ko not_active Application Discontinuation
- 2002-10-10 EP EP02775317A patent/EP1447427A4/en not_active Withdrawn
- 2002-10-10 CN CNA028201051A patent/CN1568349A/zh active Pending
- 2002-10-10 US US10/491,161 patent/US20040254282A1/en not_active Abandoned
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WO2004044063A1 (ja) * | 2002-11-13 | 2004-05-27 | Denki Kagaku Kogyo Kabushiki Kaisha | 紫外線硬化型帯電防止性ハードコート樹脂組成物 |
US7608306B2 (en) * | 2003-03-14 | 2009-10-27 | Evonik Degussa Gmbh | Method for the production of anti-statically coated moulded body |
Also Published As
Publication number | Publication date |
---|---|
CN1568349A (zh) | 2005-01-19 |
US20040254282A1 (en) | 2004-12-16 |
KR20050035141A (ko) | 2005-04-15 |
EP1447427A1 (en) | 2004-08-18 |
JP2003119207A (ja) | 2003-04-23 |
EP1447427A4 (en) | 2008-08-06 |
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