WO2017126431A1 - ハードコート積層フィルム - Google Patents
ハードコート積層フィルム Download PDFInfo
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- WO2017126431A1 WO2017126431A1 PCT/JP2017/001027 JP2017001027W WO2017126431A1 WO 2017126431 A1 WO2017126431 A1 WO 2017126431A1 JP 2017001027 W JP2017001027 W JP 2017001027W WO 2017126431 A1 WO2017126431 A1 WO 2017126431A1
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- acrylate
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- laminated film
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
- B32B27/08—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 of synthetic resin
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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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
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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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/584—Scratch resistance
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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
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
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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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
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- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
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- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
- C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- 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
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
Definitions
- the present invention relates to a hard coat laminated film. More specifically, the present invention relates to a hard coat laminated film excellent in scratch resistance and surface appearance.
- touch panels that are installed on image display devices such as a liquid crystal display, a plasma display, and an electroluminescence display and can be input by touching with a finger or a pen while watching the display have become widespread.
- glass-based articles have been used for display faceplates of touch panels because they meet required characteristics such as heat resistance, dimensional stability, high transparency, high surface hardness, and high rigidity.
- glass has disadvantages such as low impact resistance and easy cracking; low workability; difficult to handle; high specific gravity and heavy; difficult to meet demands for curved display and flexibility. Therefore, materials that replace glass have been actively studied, and a hard coat with excellent scratch resistance is provided on the surface of a transparent resin film substrate such as triacetyl cellulose, polyethylene terephthalate, polycarbonate, polymethyl methacrylate, and norbornene polymer.
- multilayer films are proposed (for example, refer patent document 1 and 2). However, its scratch resistance is still insufficient. There is a need for a hard coat laminate film that does not scratch even when repeatedly rubbed with steel wool or the like.
- An object of the present invention is to provide a hard coat laminated film excellent in scratch resistance and surface appearance.
- the first hard coat is (A) 100 parts by mass of a polyfunctional (meth) acrylate containing 20% by mass or more of tripentaerythritol acrylate; and (B) 0.01 to 7 parts by mass of a (meth) acryloyl group-containing fluoropolyether water repellent, And formed from a paint that does not contain inorganic particles; The thickness is 5-60 ⁇ m, Hard coat laminated film. [2].
- the transparent resin film is First poly (meth) acrylimide resin layer ( ⁇ 1); Aromatic polycarbonate-based resin layer ( ⁇ );
- the second poly (meth) acrylimide resin layer ( ⁇ 2) is It is a transparent multilayer film directly laminated in this order, The hard coat laminated film according to any one of [1] to [3] above. [5]. Use of the hard coat laminated film according to any one of items [1] to [4] as an image display device member. [6]. An image display device comprising the hard coat laminated film according to any one of items [1] to [4].
- the hard coat laminated film of the present invention is excellent in scratch resistance and surface appearance. Therefore, this hard coat laminated film is a member of an image display device such as a liquid crystal display, a plasma display, and an electroluminescence display (including an image display device having a touch panel function and an image display device not having a touch panel function), in particular. It can be suitably used as a display face plate of an image display device having a touch panel function.
- an image display device such as a liquid crystal display, a plasma display, and an electroluminescence display (including an image display device having a touch panel function and an image display device not having a touch panel function), in particular. It can be suitably used as a display face plate of an image display device having a touch panel function.
- the hard coat laminated film of the present invention has a first hard coat and a transparent resin film layer in order from the surface side.
- the first hard coat usually forms the surface of the hard coat laminated film of the present invention.
- the first hard coat forms a touch surface when the hard coat laminated film of the present invention is used as a display face plate of an image display device having a touch panel function.
- the first hard coat exhibits good scratch resistance and functions to prevent scratches even when repeatedly rubbed with steel wool or the like.
- the first hard coat comprises (A) 100 parts by mass of a polyfunctional (meth) acrylate containing at least 20% by mass of tripentaerythritol acrylate; and (B) (meth) acryloyl group-containing fluoropolyether water repellent 0.01 It is formed from a paint containing ⁇ 7 parts by mass and no inorganic particles.
- Inorganic particles for example, silica (silicon dioxide); metal oxide particles such as aluminum oxide, zirconia, titania, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide; fluorination Metal fluoride particles such as magnesium and sodium fluoride; metal sulfide particles; metal nitride particles; and metal particles
- silica silicon dioxide
- metal oxide particles such as aluminum oxide, zirconia, titania, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide
- fluorination Metal fluoride particles such as magnesium and sodium fluoride
- metal sulfide particles metal nitride particles
- metal particles are highly effective in increasing the hardness of the hard coat.
- the interaction between the inorganic particles and the resin component such as the component (A) is weak, which causes insufficient scratch resistance. Therefore, in the present invention, the first hard coat does not
- does not contain inorganic particles means that it does not contain a significant amount of inorganic particles.
- the significant amount of inorganic particles is usually about 1 part by mass or more with respect to 100 parts by mass of the component (A). Therefore, “does not contain” inorganic particles means that the amount of inorganic particles is usually 0 parts by mass or more and less than 1 part by mass, preferably 0.1 parts by mass or less, relative to 100 parts by mass of the component (A). Preferably, it can be paraphrased as 0.01 parts by mass or less.
- (A) Polyfunctional (meth) acrylate containing at least 20% by mass of tripentaerythritol acrylate The polyfunctional (meth) acrylate containing at least 20% by mass of the above component (A) tripentaerythritol acrylate has two or more ( A (meth) acrylate having a (meth) acryloyl group, which contains tripentaerythritol acrylate in an amount of 20% by mass or more, preferably 40% by mass or more, more preferably 50% by mass or more.
- the component (A) may contain 100% by mass or less, or less than 100% by mass, 90% by mass or less, or 80% by mass or less of tripentaerythritol acrylate.
- the mass ratio of tripentaerythritol acrylate here is based on 100% by mass of the total of the components (A).
- (meth) acrylate means acrylate or methacrylate. Since the component (A) has two or more (meth) acryloyl groups in one molecule, it functions to form a hard coat by being polymerized and cured by active energy rays such as ultraviolet rays and electron beams.
- the component (A) is more preferably a mixture of tripentaerythritol acrylate and one or more selected from the group consisting of dipentaerythritol acrylate, monopentaerythritol acrylate, and polypentaerythritol acrylate.
- the content of tripentaerythritol acrylate in the mixture is 20% by mass or more, preferably 40% by mass or more, more preferably 50 to 80% by mass, where the total of the respective components is 100% by mass.
- the content of tripentaerythritol acrylate in the mixture may be 20 to 80% by mass, or 40 to 80% by mass, where the total of the components is 100% by mass.
- the tripentaerythritol acrylate is a compound having a structure in which three pentaerythritol acrylates are linked, and has 8 or 7 (when a hydroxyl group remains at the terminal) acryloyl group. That is, the above-mentioned tripentaerythritol acrylate refers to tripentaerythritol heptaacrylate, tripentaerythritol octaacrylate, or a mixture thereof (mass ratio 0: 100 to 100: 0).
- the general structure of polyfunctional pentaerythritol acrylate is shown in the following formula (1).
- n is an integer of 0 or more
- R is —H or —COCH ⁇ CH 2 .
- the molar ratio of —H: —COCH ⁇ CH 2 with respect to R is not particularly limited, but is usually 40:60 to 80:20 from the viewpoint of optimizing the resulting coating viscosity, and is more typical. May be 50:50 to 70:30.
- n 2 in the following formula (1), it represents tripentaerythritol heptaacrylate or tripentaerythritol octaacrylate.
- the polypentaerythritol acrylate is a compound having a structure in which four or more pentaerythritol acrylates are linked.
- the acryloyl group there is no particular upper limit for N, but it may usually be 6 or less from the viewpoint of optimizing the viscosity of the paint containing this and the possibility of actual synthesis.
- the component (A) may contain other polyfunctional (meth) acrylates in addition to tripentaerythritol acrylate, dipentaerythritol acrylate, monopentaerythritol acrylate, and polypentaerythritol acrylate.
- Such other polyfunctional (meth) acrylates are not particularly limited.
- diethylene glycol di (meth) acrylate diethylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, polyethylene Glycol di (meth) acrylate, 2,2′-bis (4- (meth) acryloyloxypolyethyleneoxyphenyl) propane, 2,2′-bis (4- (meth) acryloyloxypolypropyleneoxyphenyl) propane, etc.
- (Meth) acryloyl group-containing bifunctional reactive monomers (meth) acrylo such as trimethylolpropane tri (meth) acrylate, trimethylolethane tri (meth) acrylate, and ethoxylated trimethylolpropane tri (meth) acrylate Trifunctional reactive monomer containing a tri group; tetrafunctional reactive monomer containing a (meth) acryloyl group such as ditrimethylolpropane tetra (meth) acrylate and pentaerythritol tetramethacrylate; containing a (meth) acryloyl group such as dipentaerythritol hexaacrylate And hexafunctional reactive monomers; and polymers (oligomers and prepolymers) having one or more of these as constituent monomers.
- these 1 type, or 2 or more types of mixtures can be used.
- the component (B) is a water repellent containing a compound containing a (meth) acryloyl group and a fluoropolyether group in the molecule.
- the component (B) is clearly distinguished from the component (A) in that it contains a fluoropolyether group in the molecule.
- the polyfunctional (meth) acrylate contained in the component (A) does not contain a fluoropolyether group in the molecule.
- a compound containing two or more (meth) acryloyl groups in one molecule and containing a fluoropolyether group is the component (B).
- the component (B) (meth) acryloyl group-containing fluoropolyether-based water repellent functions to improve the scratch resistance, slipperiness, anti-smudge property, and dirt wiping property. Since the component (B) has a (meth) acryloyl group in the molecule, troubles such as a chemical bond or strong interaction with the component (A) and bleeding out are suppressed.
- the component (B) contains an acryloyl group from the viewpoint of appropriately adjusting the chemical bond or interaction between the component (A) and the component (B) and exhibiting good water repellency while maintaining high transparency.
- a blend of a fluoropolyether water repellent and a methacryloyl group-containing fluoropolyether water repellent is preferred.
- the blending amount of the (meth) acryloyl group-containing fluoropolyether water repellent of the component (B) prevents troubles such as bleeding out of the component (B) with respect to 100 parts by mass of the component (A). Therefore, it is usually 7 parts by mass or less, preferably 4 parts by mass or less, more preferably 2 parts by mass or less.
- the blending amount of the (meth) acryloyl group-containing fluoropolyether water repellent of the component (B) is usually 0.01 parts by mass or more, preferably 0.05 parts by mass from the viewpoint of obtaining the effect of use. As mentioned above, More preferably, it is 0.1 mass part or more.
- the blending amount of this water repellent is usually 0.01 parts by mass or more and 7 parts by mass or less, preferably 0.01 parts by mass or more and 4 parts by mass or less, or 0.01 parts by mass or more and 2 parts by mass or less. Or preferably 0.05 parts by weight or more and 7 parts by weight or less, 0.05 parts by weight or more and 4 parts by weight or less, or 0.05 parts by weight or more and 2 parts by weight or less, or preferably 0.1 parts by weight. It may be 7 parts by mass or less, 0.1 parts by mass or more and 4 parts by mass or less, or 0.1 parts by mass or more and 2 parts by mass or less.
- the first hard coat forming coating material has a compound having two or more isocyanate groups (—N ⁇ C ⁇ O) in one molecule and / or photopolymerization from the viewpoint of improving curability by active energy rays. It is preferable to further contain an agent.
- Examples of the compound having two or more isocyanate groups in one molecule include methylene bis-4-cyclohexyl isocyanate; trimethylol propane adduct of tolylene diisocyanate, trimethylol propane adduct of hexamethylene diisocyanate, trimethylol of isophorone diisocyanate.
- Polyisocyanates such as propane adduct, isocyanurate of tolylene diisocyanate, isocyanurate of hexamethylene diisocyanate, isocyanurate of isophorone diisocyanate, biuret of hexamethylene diisocyanate; and urethanes such as block isocyanates of the above polyisocyanates
- a crosslinking agent etc. can be mentioned.
- the compound having two or more isocyanate groups in one molecule one or a mixture of two or more thereof can be used.
- a catalyst such as dibutyltin dilaurate or dibutyltin diethylhexoate may be added as necessary.
- photopolymerization initiator examples include benzophenone, methyl-o-benzoylbenzoate, 4-methylbenzophenone, 4,4′-bis (diethylamino) benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl.
- Benzophenone compounds such as -4'-methyldiphenyl sulfide, 3,3 ', 4,4'-tetra (tert-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone; benzoin, benzoin methyl ether, benzoin Benzoin compounds such as ethyl ether, benzoin isopropyl ether, benzyl methyl ketal; acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone Acetophenone compounds; anthraquinone compounds such as methylanthraquinone, 2-ethylanthraquinone, 2-amylanthraquinone; thioxanthone compounds such as thioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone; alkyls such
- acetophenone photopolymerization initiator two or more acetophenone photopolymerization initiators, for example, 1-hydroxycyclohexyl phenyl ketone and 2-hydroxy-1- (4- (4- (2-hydroxy-2-methyl-propionyl)) are used. It is preferred to use in combination with -benzyl) phenyl) -2-methyl-propan-1-one. It can be sufficiently cured while suppressing coloring of the hard coat.
- the first hard coat-forming coating material includes, as desired, an antistatic agent, a surfactant, a leveling agent, a thixotropic agent, a stain-preventing agent, a printability improving agent, an antioxidant, a weathering stabilizer, One or more additives such as a light resistance stabilizer, an ultraviolet absorber, a heat stabilizer, organic fine particles, and an organic colorant can be contained.
- the first hard coat-forming coating material may contain a solvent as desired in order to dilute to a concentration that facilitates coating. If the said solvent does not react with the said component (A), the said component (B), and other arbitrary components, or does not catalyze (promote) the self-reaction (including deterioration reaction) of these components.
- the solvent include 1-methoxy-2-propanol, ethyl acetate, n-butyl acetate, toluene, methyl ethyl ketone, methyl isobutyl ketone, diacetone alcohol, and acetone.
- these 1 type, or 2 or more types of mixtures can be used.
- the first hard coat forming paint can be obtained by mixing and stirring these components.
- the method for forming the first hard coat using the first hard coat forming paint is not particularly limited, and a known web coating method can be used. Examples of the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, dip coating, spray coating, spin coating, air knife coating, and die coating.
- the thickness of the first hard coat is 5 ⁇ m or more, preferably 7 ⁇ m or more, more preferably 8 ⁇ m or more, and further preferably 9 ⁇ m or more from the viewpoint of scratch resistance.
- the thickness of the first hard coat is usually 60 ⁇ m or less, preferably 30 ⁇ m or less, more preferably from the viewpoint of maintaining good bending resistance of the hard coat laminated film of the present invention and allowing easy handling as a film roll. May be 20 ⁇ m or less, more preferably 15 ⁇ m or less.
- the thickness of the first hard coat is preferably 5 ⁇ m to 60 ⁇ m or less, 5 ⁇ m to 30 ⁇ m, 5 ⁇ m to 20 ⁇ m, 5 ⁇ m to 15 ⁇ m, 7 ⁇ m to 60 ⁇ m, 7 ⁇ m to 30 ⁇ m, 7 ⁇ m to 20 ⁇ m, or 7 ⁇ m.
- It may be 15 ⁇ m or less, or 8 ⁇ m or more and 60 ⁇ m or less, 8 ⁇ m or more and 30 ⁇ m or less, 8 ⁇ m or more and 20 ⁇ m or less, or 8 ⁇ m or more and 15 ⁇ m or less, or 9 ⁇ m or more and 60 ⁇ m or less, 9 ⁇ m or more and 30 ⁇ m or less, 9 ⁇ m or more, 20 ⁇ m or less, or 9 ⁇ m or more and 15 ⁇ m or less.
- the hard coat laminated film of the present invention preferably has a first hard coat, a transparent resin film layer, and a second hard coat in order from the surface layer side.
- a first hard coat a transparent resin film layer
- a second hard coat in order from the surface layer side.
- the second hard coat is not particularly limited, and can be formed by any method using any paint.
- the second hard coat is preferably (A) 100 parts by mass of a polyfunctional (meth) acrylate containing 20% by mass or more of tripentaerythritol acrylate; and (C) a leveling agent of 0.01 to It is formed from the coating material containing 10 mass parts.
- the polyfunctional (meth) acrylate containing 20% by mass or more of the above component (A) tripentaerythritol acrylate has been described above in the description of the first hard coat forming coating material.
- these 1 type, or 2 or more types of mixtures can be used.
- the component (A) for the second hard coat is more preferably the same as that used in the first hard coat-forming coating material from the viewpoint of curling resistance.
- (C) Leveling agent It is preferable that a leveling agent is included in the coating material for forming the second hard coat from the viewpoint of making the surface of the second hard coat smooth.
- leveling agent examples include acrylic leveling agents, silicon leveling agents, fluorine leveling agents, silicon / acrylic copolymer leveling agents, fluorine-modified acrylic leveling agents, fluorine-modified silicon leveling agents, and functionalities thereof.
- leveling agents include leveling agents in which groups (for example, alkoxy groups such as methoxy and ethoxy groups, acyloxy groups, halogen groups, amino groups, vinyl groups, epoxy groups, methacryloxy groups, acryloxy groups, and isocyanate groups) are introduced.
- groups for example, alkoxy groups such as methoxy and ethoxy groups, acyloxy groups, halogen groups, amino groups, vinyl groups, epoxy groups, methacryloxy groups, acryloxy groups, and isocyanate groups
- an acrylic leveling agent and a silicon / acrylic copolymer leveling agent are preferable from the viewpoint of printability.
- these 1 type, or 2 or more types of mixtures can be used.
- the amount of the leveling agent of the component (C) is usually 0.01 parts by mass or more, preferably from the viewpoint of smoothening the surface of the second hard coat with respect to 100 parts by mass of the component (A). Is 0.1 parts by mass or more, more preferably 0.2 parts by mass or more.
- the blending amount of the leveling agent of the component (C) is usually 10 parts by mass or less, preferably 7 parts by mass or less, more preferably 4 masses from the viewpoint of preventing troubles such as bleeding out of the component (C). Or less, more preferably 2 parts by mass or less.
- the compounding amount of the leveling agent of the component (C) is usually 0.01 parts by mass or more and 10 parts by mass or less, preferably 0.01 parts by mass or more and 7 parts by mass or less, or 0.01 parts by mass or more and 4 parts by mass or less, or 0.
- the second hard coat-forming coating compound has a compound having two or more isocyanate groups (—N ⁇ C ⁇ O) in one molecule and / or photopolymerization initiation. It is preferable to further contain an agent.
- the compound having two or more isocyanate groups in one molecule is described above in the description of the first hard coat forming coating material.
- the compound having two or more isocyanate groups in one molecule one or a mixture of two or more thereof can be used.
- the photopolymerization initiator has been described above in the description of the first hard coat-forming paint.
- the photopolymerization initiator one or a mixture of two or more of these can be used.
- an antistatic agent for the second hard coat forming coating, an antistatic agent, a surfactant, a thixotropic agent, a stain inhibitor, a printability improver, an antioxidant, a weather resistance stabilizer, and a light resistance stability are optionally added.
- a surfactant for the second hard coat forming coating, an antistatic agent, a surfactant, a thixotropic agent, a stain inhibitor, a printability improver, an antioxidant, a weather resistance stabilizer, and a light resistance stability are optionally added.
- One type or two or more types of additives such as an agent, an ultraviolet absorber, a heat stabilizer, a colorant, inorganic fine particles, and organic fine particles can be contained.
- the second hard coat-forming coating material may contain a solvent as desired in order to dilute to a concentration that is easy to apply. If the said solvent does not react with the said component (A), the said component (C), and other arbitrary components, or does not catalyze (promote) the self-reaction (including deterioration reaction) of these components, There is no particular limitation.
- the solvent include 1-methoxy-2-propanol, ethyl acetate, n-butyl acetate, toluene, methyl ethyl ketone, methyl isobutyl ketone, diacetone alcohol, and acetone. Of these, 1-methoxy-2-propanol is preferred. As said solvent, these 1 type, or 2 or more types of mixtures can be used.
- the second hard coat forming paint can be obtained by mixing and stirring these components.
- the method for forming the second hard coat using the second hard coat forming paint is not particularly limited, and a known web coating method can be used. Examples of the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, dip coating, spray coating, spin coating, air knife coating, and die coating.
- the thickness of the second hard coat is not particularly limited, but may be usually 60 ⁇ m or less, preferably 30 ⁇ m or less, more preferably 20 ⁇ m or less, and still more preferably 15 ⁇ m or less from the viewpoint of bending resistance.
- the thickness of the second hard coat may be usually 5 ⁇ m or more, preferably 7 ⁇ m or more, more preferably 8 ⁇ m or more, and further preferably 9 ⁇ m or more.
- the thickness of the second hard coat is preferably 5 ⁇ m to 60 ⁇ m, 5 ⁇ m to 30 ⁇ m, 5 ⁇ m to 20 ⁇ m, 5 ⁇ m to 15 ⁇ m, 7 ⁇ m to 60 ⁇ m, 7 ⁇ m to 30 ⁇ m, 7 ⁇ m to 20 ⁇ m, or 7 ⁇ m.
- the thickness of the second hard coat may be the same as that of the first hard coat from the viewpoint of curling resistance.
- the“ same thickness ” should not be interpreted as completely the same thickness in a physicochemically strict sense.
- the thickness should be construed as the same thickness within the range of process / quality control that is usually performed in industry. This is because the curl resistance can be improved if the thickness is the same within the range of the amplitude of the process and quality control that are usually performed industrially. Since the thickness (after curing) of the hard coat is usually controlled in process and quality with a width of about ⁇ 0.5 to +0.5 ⁇ m, the thickness 10 ⁇ m and the same 11 ⁇ m should be interpreted as the same.
- the “same thickness” here is also referred to as “substantially the same thickness”.
- the transparent resin film is a layer serving as a transparent film substrate for forming the first hard coat or the first hard coat and the second hard coat thereon.
- the transparent resin film is not limited except that it has high transparency and is not colored, and any transparent resin film can be used.
- the transparent resin film examples include cellulose ester resins such as triacetyl cellulose; polyester resins such as polyethylene terephthalate; cyclic hydrocarbon resins such as ethylene norbornene copolymers; polymethyl methacrylate, polyethyl methacrylate, And acrylic resins such as vinylcyclohexane- (meth) acrylate methyl copolymer; aromatic polycarbonate resins; polyolefin resins such as polypropylene and 4-methyl-pentene-1; polyamide resins; polyarylate resins; Examples thereof include a polymer type urethane acrylate resin; and a polyimide resin film.
- These films include unstretched films, uniaxially stretched films, and biaxially stretched films. Moreover, these films include the laminated
- the thickness of the transparent resin film is not particularly limited, and can be any thickness as desired. From the viewpoint of handleability of the hard coat laminated film of the present invention, it may be usually 20 ⁇ m or more, preferably 50 ⁇ m or more.
- the thickness of the transparent resin film is usually 100 ⁇ m or more, preferably 200 ⁇ m or more, more preferably 300 ⁇ m or more from the viewpoint of maintaining rigidity. .
- the thickness of the transparent resin film is usually 1500 ⁇ m or less, preferably 1200 ⁇ m or less, more preferably 1000 ⁇ m or less.
- the thickness of the transparent resin film may be usually 250 ⁇ m or less, preferably 150 ⁇ m or less, from the viewpoint of economy.
- the transparent resin film is preferably an acrylic resin transparent resin film.
- acrylic resin here includes acrylic resin and methacrylic resin.
- (meth) acrylic acid ester (co) polymer structural units derived from (meth) acrylic acid ester are mainly (usually 50 mol% or more, preferably 65 mol% or more, more preferably Are 70 mol% or more) and copolymers thereof, and modified products thereof.
- (meth) acryl means acryl or methacryl.
- the (co) polymer means a polymer or a copolymer.
- Examples of the (meth) acrylate ester (co) polymer include poly (meth) acrylate methyl, poly (meth) acrylate ethyl, poly (meth) acrylate propyl, poly (meth) acrylate butyl, ( Examples thereof include methyl (meth) acrylate / (meth) butyl acrylate copolymer, ethyl (meth) acrylate / butyl (meth) acrylate copolymer, and the like.
- Examples of the copolymer mainly containing a structural unit derived from the above (meth) acrylic acid ester include, for example, ethylene / methyl (meth) acrylate copolymer, styrene / methyl (meth) acrylate copolymer, vinylcyclohexane / Examples thereof include (meth) methyl acrylate copolymer, maleic anhydride / (meth) methyl acrylate copolymer, and N-substituted maleimide / (meth) methyl acrylate copolymer.
- modified substance examples include a polymer in which a lactone ring structure is introduced by an intramolecular cyclization reaction; a polymer in which glutaric anhydride is introduced by an intramolecular cyclization reaction; and an imidizing agent (for example, methyl
- an imidizing agent for example, methyl
- examples thereof include a polymer in which an imide structure is introduced by reacting with amine, cyclohexylamine, ammonia, and the like (hereinafter referred to as poly (meth) acrylimide resin).
- acrylic resin transparent resin film examples include films of one kind or a mixture of two or more kinds. Moreover, these films include the laminated
- the transparent resin film is more preferably a vinyl cyclohexane / (meth) methyl acrylate copolymer film.
- the vinylcyclohexane ⁇ (meth) acrylate methyl copolymer here is formed from methyl (meth) acrylate and vinylcyclohexane as a polymerizable monomer, or methyl (meth) acrylate and vinylcyclohexane, and A copolymer formed from a copolymerizable monomer.
- the copolymerizable monomer is usually a compound having a carbon / carbon double bond, typically a compound having an ethylenic double bond.
- the content of the structural unit derived from methyl (meth) acrylate in the vinylcyclohexane-methyl (meth) acrylate copolymer is a total polymerizable monomer (methyl (meth) acrylate, vinylcyclohexane, and (present) In the case where the sum of the structural units derived from the monomer) copolymerizable with these is 100 mol%, it may be usually 50 to 95 mol%, preferably 65 to 90 mol%, more preferably 70 to 85 mol%. .
- the transparent resin film may be a poly (meth) acrylimide resin film.
- a transparent resin film By using such a transparent resin film, it becomes a hard coat laminated film excellent in surface hardness, scratch resistance, transparency, surface smoothness, appearance, rigidity, heat resistance, and heat-resistant dimensional stability. Or as a transparent conductive substrate.
- the yellowness index of the acrylic resin is preferably 3 or less, more preferably 2 or less. More preferably, it is 1 or less.
- a hard coat laminated film that can be suitably used as a member of an image display device can be obtained. The lower the yellowness index, the better.
- the melt mass flow rate of the acrylic resin (measured in accordance with ISO 1133 under the conditions of 260 ° C. and 98.07 N) is preferably 0.1 to 20 g / 10 min from the viewpoint of extrusion load and melt film stability. 0.5 to 10 g / 10 min is preferred.
- the acrylic resin may include a thermoplastic resin other than the acrylic resin; a pigment, an inorganic filler, an organic filler, a resin filler; a lubricant, an antioxidant, and a stable weather resistance, as long as it does not contradict the purpose of the present invention.
- An additive such as an agent, a heat stabilizer, a release agent, an antistatic agent, and a surfactant can be further included.
- the amount of these optional components is usually about 0.01 to 10 parts by mass with 100 parts by mass of the acrylic resin.
- the transparent resin film is preferably a transparent multilayer film in which a first acrylic resin layer ( ⁇ 1); an aromatic polycarbonate resin layer ( ⁇ ); and a second acrylic resin layer ( ⁇ 2) are directly laminated in this order. is there.
- a first acrylic resin layer ( ⁇ 1); an aromatic polycarbonate resin layer ( ⁇ ); and a second acrylic resin layer ( ⁇ 2) are directly laminated in this order. is there.
- the present invention will be described on the assumption that the touch surface is formed on the ⁇ 1 layer side.
- Acrylic resin is excellent in surface hardness but tends to be insufficient in cutting workability.
- aromatic polycarbonate resin is excellent in machinability but tends to have insufficient surface hardness. Therefore, by using the transparent multilayer film having the above-mentioned layer structure, it is possible to easily obtain a hard coat laminated film that compensates for both weak points and is excellent in both surface hardness and cutting workability.
- the layer thickness of the ⁇ 1 layer is not particularly limited, but is usually 20 ⁇ m or more, preferably 40 ⁇ m or more, more preferably 60 ⁇ m or more, and still more preferably 80 ⁇ m or more, from the viewpoint of the surface hardness of the hard coat laminated film of the present invention. Good.
- the layer thickness of the ⁇ 2 layer is not particularly limited, but is preferably the same layer thickness as the ⁇ 1 layer from the viewpoint of curl resistance of the hard coat laminated film of the present invention.
- the “same layer thickness” should not be interpreted as the same layer thickness in a physicochemically strict sense. It should be construed that the layer thickness is the same within the range of process and quality control that is usually performed industrially. This is because the curl resistance of the multilayer film can be kept good if the layer thickness is the same within the range of the amplitude of process and quality control that is usually performed industrially.
- the layer thicknesses of 65 ⁇ m and 75 ⁇ m should be interpreted as the same. is there.
- “the same layer thickness” is also referred to as “substantially the same layer thickness”.
- the layer thickness of the ⁇ layer is not particularly limited, but may be usually 20 ⁇ m or more, preferably 80 ⁇ m or more from the viewpoint of cutting resistance of the hard coat laminated film of the present invention.
- the acrylic resin used for the ⁇ 1 layer and the ⁇ 2 layer has been described above.
- the acrylic resin used for the ⁇ 1 layer and the acrylic resin used for the ⁇ 2 layer have different resin characteristics, for example, different acrylic resins such as types, melt mass flow rates, and glass transition temperatures. Also good. From the viewpoint of curling resistance of the hard coat laminated film of the present invention, those having the same resin characteristics are preferably used. For example, using the same lot of the same grade is one preferred embodiment.
- aromatic polycarbonate resin used for the ⁇ layer examples include aromatic dihydroxy compounds such as bisphenol A, dimethylbisphenol A, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, and phosgene.
- One or a mixture of two or more aromatic polycarbonate resins such as a polymer obtained by a transesterification reaction with a diester can be used.
- the aromatic polycarbonate resin include core-shell rubber.
- the core-shell rubber is 0-30 parts by mass (aromatic polycarbonate-based resin 100-70 parts by mass), preferably 0-10 parts by mass (aromatic When used in an amount of 100 to 90 parts by mass of a polycarbonate-based resin, it is possible to further improve the cutting resistance and impact resistance of the hard coat laminated film.
- the core shell rubber examples include methacrylic ester / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / ethylene / propylene rubber graft copolymer, and acrylonitrile / styrene / acrylic.
- core-shell rubbers such as acid ester graft copolymers, methacrylic acid ester / acrylic acid ester rubber graft copolymers, and methacrylic acid ester / acrylonitrile / acrylic acid ester rubber graft copolymers.
- the core-shell rubber one or a mixture of two or more of these can be used.
- the aromatic polycarbonate-based resin may be a thermoplastic resin other than the aromatic polycarbonate-based resin or the core-shell rubber; a pigment, an inorganic filler, an organic filler, a resin filler; Further, additives such as an antioxidant, a weather resistance stabilizer, a heat stabilizer, a release agent, an antistatic agent and a surfactant can be further included.
- the amount of these optional components is usually about 0.01 to 10 parts by mass, where the total of the aromatic polycarbonate resin and the core-shell rubber is 100 parts by mass.
- the transparent resin film has a first poly (meth) acrylimide resin layer ( ⁇ 1); an aromatic polycarbonate resin layer ( ⁇ ); a second poly (meth) acrylimide resin layer ( ⁇ 2).
- a transparent multilayer film directly laminated in this order Poly (meth) acrylimide resin is excellent in heat resistance and surface hardness, but is likely to have insufficient cutting workability.
- the aromatic polycarbonate resin is excellent in machinability but tends to have insufficient heat resistance and surface hardness. Therefore, by using the transparent multilayer film having the above-mentioned layer structure, it is possible to easily obtain a hard coat laminated film that compensates for the weaknesses of both and is excellent in any of heat resistance, surface hardness, and cutting workability. .
- the method for producing the transparent resin film is not particularly limited.
- the transparent resin film is directly laminated in this order: a first poly (meth) acrylimide resin layer ( ⁇ 1); an aromatic polycarbonate resin layer ( ⁇ ); a second poly (meth) acrylimide resin layer ( ⁇ 2).
- a method described in JP-A-2015-083370 can be exemplified.
- a corona discharge treatment or anchor coat is formed in advance in order to increase the adhesive strength with the hard coat on the hard coat forming surface or both surfaces of the transparent resin film.
- An easy adhesion treatment such as
- FIG. 1 is a cross-sectional conceptual diagram showing an example of a hard coat laminated film of the present invention.
- first hard coat 1, first poly (meth) acrylimide resin layer ( ⁇ 1): 2, aromatic polycarbonate resin layer ( ⁇ ): 3, second poly (meth) acrylimide System resin layer ( ⁇ 2): 4 and second hard coat: 5.
- the hard coat laminated film of the present invention may have an optional layer other than the first hard coat, the second hard coat, and the transparent resin film, if desired.
- the optional layer include a third hard coat, an anchor coat layer, an adhesive layer, a transparent conductive layer, a high refractive index layer, a low refractive index layer, and an antireflection functional layer.
- the third hard coat may have the same composition as the first hard coat or the second hard coat.
- the hard coat laminated film of the present invention is placed on a JIS L0849: 2013 Gakushin type testing machine so that the first hard coat is on the surface, and # 0000 steel wool is attached to the friction terminals of the Gakushoku type testing machine. Then, after applying a load of 500 g, rubbing the surface of the first hard coat 9000 times in a reciprocating manner under the conditions of a moving speed of the friction terminal of 300 mm / min and a moving distance of 30 mm, It is preferable that it is not recognized. It is more preferable that no scratch is recognized after rubbing 10,000 times. More preferably, no scratches are observed after 11000 reciprocations. It is more preferable that no scratches are observed after 12,000 reciprocations. Most preferably, no scratches are observed after 13,000 round trips. It is preferable that no scratch is observed after rubbing more times. By having such scratch resistance, the hard coat laminated film of the present invention can be suitably used as an image display device member.
- the hard coat laminated film of the present invention preferably has a total light transmittance (measured according to JIS K7361-1: 1997, using a turbidimeter “NDH2000” (trade name) manufactured by Nippon Denshoku Industries Co., Ltd.). Above, more preferably 88% or more, still more preferably 90% or more. When the total light transmittance is 85% or more, the hard coat laminated film of the present invention can be suitably used as an image display device member. A higher total light transmittance is preferable.
- the minimum bending radius is preferably 70 mm or less, more preferably 60 mm or less, and still more preferably 50 mm or less.
- the minimum bending radius is preferably 70 mm or less, the hard coat laminated film of the present invention can be easily handled as a film roll, which is advantageous in terms of production efficiency.
- the minimum bending radius is a value measured according to the test (v) of the following example.
- the minimum bend radius is a bend radius immediately before a crack is generated on the surface of the bent portion when the hard coat laminated film is bent, and is an index indicating the limit of bending.
- the bending radius is defined in the same way as the curvature radius.
- the radius of curvature is defined as follows with reference to FIG.
- the length from the M point to the N point of the curve is ⁇ S; the difference between the slope of the tangent at the M point and the slope of the tangent at the N point is ⁇ ; a straight line perpendicular to the tangent at the M point and intersecting at the M point
- O the intersection point with a straight line that is perpendicular to the tangent line at the N point and intersects at the N point
- the radius at this time is defined as the radius of curvature.
- the water contact angle on the surface of the first hard coat is preferably 95 degrees or more, more preferably 100 degrees or more, and further preferably 105 degrees or more.
- the first hard coat forms a touch surface.
- the touch panel can be operated by sliding a finger or a pen as desired on the touch surface. From the viewpoint of sliding a finger or pen as desired, a higher water contact angle is preferable. There is no particular upper limit for the water contact angle, but about 120 degrees is usually sufficient.
- the water contact angle is a value measured according to the test (vi) of the following Examples.
- the water contact angle after wiping the surface of the first hard coat is preferably after 20,000 round trips, more preferably after 25,000 round trips, preferably 95 degrees or more, More preferably, it is 100 degrees or more, and further preferably 105 degrees or more.
- the water contact angle after reciprocating 20,000 times of cotton wiping is 95 degrees or more, surface characteristics such as slipperiness can be maintained even if wiping with a handkerchief or the like is repeated.
- the water contact angle after cotton wiping is a value measured according to the test (vii) of the following Examples.
- the yellowness index of the hard coat laminated film of the present invention is preferably 3 or less, more preferably. Is 2 or less, more preferably 1 or less. The lower the yellowness index, the better. When the yellowness index is 3 or less, the hard coat laminated film of the present invention can be suitably used as an image display device member.
- the hard coat laminated film of the present invention is placed on a JIS L0849: 2013 Gakushin type testing machine so that the first hard coat is on the surface, and # 0000 steel wool is attached to the friction terminals of the Gakushoku type testing machine. Then, after applying a load of 500 g and rubbing the surface of the first hard coat 9000 times reciprocally, when the friction part is visually observed, no scratch is observed, or after rubbing 10000 times reciprocally, No scratches are observed after rubbing 11000 round trips, or no scratches are observed after rubbing 12000 round trips, or after 13,000 round trips, No scratches are observed and / or the total light transmittance is 85% or more, 88% or more, or 90% or more, and / or The minimum bending radius is 70 mm or less, 60 mm or less, or 50 mm or less, and / or the water contact angle is 95 degrees or more, 100 degrees or more, or 105 degrees or more, and / or the first hard The water contact angle after 20,000 cotton swabs on the coat surface
- the scratch resistance was evaluated according to the following criteria. A: No scratches were observed even after 13000 round trips. B: No scratches were observed after 12,000 round trips, but scratches were observed after 13,000 round trips. C: No scratches were observed after 11000 round trips, but scratches were observed after 12000 round trips. D: No scratches were observed after 10,000 round trips, but scratches were observed after 11,000 round trips. E: No scratches were observed after 9000 round trips, but scratches were observed after 10,000 round trips. F: Scratches could be recognized after 9000 round trips.
- (Vii) Scratch resistance 2 (water contact angle after cotton wiping) JIS L0849 has a size of 150 mm in length and 50 mm in width, and a test piece taken so that the machine direction of the hard coat laminated film is the vertical direction of the test piece so that the first hard coat of the hard coat laminated film is on the surface.
- the operation of measuring the water contact angle of the cotton wiping location was repeated and evaluated according to the following criteria. .
- D The water contact angle was 95 degrees or more after 10,000 round trips, but the water contact angle was less than 95 degrees after 15,000 cycles.
- Classification 2 The coating film was peeled along the edge of the cut and / or at the intersection. The area affected by the crosscut portion clearly exceeded 5% but never exceeded 15%.
- Classification 3 The coating film was partially or completely peeled along the edge of the cut, and / or various parts of the eyes were partially or completely peeled off. The area affected by the crosscut portion clearly exceeded 15% but never exceeded 35%.
- Classification 4 The coating film was partially or completely peeled along the edge of the cut, and / or several eyes were partially or completely peeled off. The area affected by the crosscut portion clearly exceeded 35% but never exceeded 65%.
- Category 5 The case where the degree of peeling exceeded Category 4 was determined as the main category.
- A Multifunctional (meth) acrylate:
- A-1 Osaka Organic Chemical Industry Co., Ltd. Tripentaerythritol acrylate, dipentaerythritol acrylate, monopentaerythritol acrylate, and polypentaerythritol acrylate mixture “Biscoat # 802” (trade name), containing tripentaerythritol acrylate The amount is 60% by mass.
- A-2 Dipentaerythritol hexaacrylate. (6 functions)
- (C) Leveling agent (C-1) Acrylic polymer leveling agent “BYK-399” (trade name) of Big Chemie Japan Co., Ltd .: solid content 100 mass%
- (D) Inorganic fine particles (D-1) Silica fine particles having an average particle diameter of 20 nm and surface-treated with a silane coupling agent having a vinyl group
- (E) Optional component: (E-1) Phenylketone photopolymerization initiator (1-hydroxycyclohexyl phenyl ketone) “SB-PI714” (product name) (E-2) ⁇ -hydroxyacetophenone photopolymerization initiator (2-hydroxy-1- (4- (4- (2-hydroxy-2-methyl-propionyl) -benzyl) phenyl) -2-methyl from BASF -Propan-1-one) "Irgacure 127" (trade name) (E-3) 1: 1 (mass ratio) mixed solvent of 1-methoxy-2-propanol and methyl isobutyl ketone (E-4) Surface treated with a silane coupling agent having a vinyl group and having an average particle diameter of 20 nm Silica fine particles
- (H1) First hard coat forming paint: (H1-1) 100 parts by mass of (A-1), 2 parts by mass of (B-1) (0.40 parts by mass in terms of solid content), 0.06 parts by mass of (B-2) (in terms of solid content) 0.042 parts by mass), 3 parts by mass of (E-1), 1 part by mass of (E-2), and 120 parts by mass of (E-3) were mixed and stirred to obtain a paint.
- Table 1 shows the composition. For the (B-1) and the component (B-2), values in terms of solid content are described in the table (the same applies hereinafter).
- (H2) Second hard coat forming paint (H2-1) 100 parts by mass of (A-1), 0.5 parts by mass of (C-1), 3 parts by mass of (E-1), 1 part by mass of (E-2), and ( E-3) 120 parts by mass were mixed and stirred to obtain a paint. Table 1 shows the composition.
- (P) Transparent resin film (P-1) A two-type, three-layer, multi-manifold co-extrusion T-die 6, a first mirror roll 8 (a roll that is fed to the next transfer roll with a molten film) and a second mirror roll 9 Using an apparatus including a winder equipped with a mechanism for pressing the molten film 7 (see FIG. 3), as an outer layer ( ⁇ 1 layer and ⁇ 2 layer) of a two-kind / three-layer multilayer resin film, poly (meta ) Acrylic imide “PLEXIMID TT50” (trade name) is used as an intermediate layer ( ⁇ layer), and aromatic polycarbonate “Caliver 301-4” (trade name) from Sumika Stylon Polycarbonate Co., Ltd.
- the setting conditions were a T die setting temperature of 300 ° C., a first mirror surface roll setting temperature of 130 ° C .; a second mirror surface roll setting temperature of 120 ° C., and a take-up speed of 6.5 m / min.
- a single layer T die, a first mirror surface roll (a roll on the side of holding the molten film and feeding it to the next transfer roll) and a second mirror surface roll are provided with a mechanism for pressing the molten film
- the first mirror roll and the second mirror roll rotating by continuously extruding the aromatic polycarbonate “Caliver 301-4” (trade name) from Sumika Stylon Polycarbonate Co., Ltd. During this time, the supply was charged and pressed. As a result, a transparent resin film having a total thickness of 250 ⁇ m was obtained.
- the setting conditions were a T-die setting temperature of 320 ° C., a first mirror surface roll setting temperature of 140 ° C .; a second mirror surface roll setting temperature of 120 ° C., and a take-up speed of 5.6 m / min.
- Example 1 Corona discharge treatment was performed on both sides of the above (P-1).
- the wetness index on both sides was 64 mN / m.
- the above (H2-1) was applied on the surface of the ⁇ 1 layer side so as to have a wet thickness of 22.6 ⁇ m (thickness after curing: 10.5 ⁇ m) using a die type coating apparatus.
- the high-pressure mercury lamp type ultraviolet irradiation device 10 and the diameter of 25.4 cm are passed.
- a second hard coat was formed by using a curing device that faced the mirror surface metal roll 11 (see FIG.
- Example 2-7 Examples 1S-5S Except having changed the coating material to be used to the thing shown in Table 1 or 2, creation of the hard coat laminated
- FIG. The results are shown in Table 1 or 2. Since Example 2S had a water contact angle of less than 95 degrees from the beginning, the scratch resistance 2 test was omitted.
- Example 8-10 Except having changed the thickness of the 1st and 2nd hard coat into the thickness shown in Table 3, creation of the hard coat laminated film and physical property measurement and evaluation were performed like Example 1. The results are shown in Table 3.
- Examples 11-16 Except having changed the transparent resin film to be used to the thing shown in Table 3 or 4, creation of the hard coat laminated film and physical property measurement and evaluation were performed like Example 1. The results are shown in Table 3 or 4.
- the hard coat laminated film of the present invention expressed physical properties suitable as a display face plate of an image display device having a touch panel function.
- scratch resistance 1 steel wool resistance
- First hard coat 2 First poly (meth) acrylimide resin layer ( ⁇ 1) 3: Aromatic polycarbonate resin layer ( ⁇ ) 4: Second poly (meth) acrylimide resin layer ( ⁇ 2) 5: 2nd hard coat 6: T die 7: Molten film 8: 1st mirror surface roll 9: 2nd mirror surface roll 10: Ultraviolet irradiation apparatus 11: Mirror surface metal roll 12: Web 13: Holding angle
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Abstract
Description
[1].
表層側から順に第1ハードコート、及び透明樹脂フィルムの層を有し、
上記第1ハードコートは、
(A)トリペンタエリスリトールアクリレートを20質量%以上含む多官能(メタ)アクリレート100質量部;及び
(B)(メタ)アクリロイル基含有フルオロポリエーテル系撥水剤0.01~7質量部
を含み、かつ無機粒子を含まない塗料から形成されており;
厚みが5~60μmである、
ハードコート積層フィルム。
[2].
上記成分(A)トリペンタエリスリトールアクリレートを20質量%以上含む多官能(メタ)アクリレートが、
トリペンタエリスリトールアクリレートと;
ジペンタエリスリトールアクリレート、モノペンタエリスリトールアクリレート、及び ポリペンタエリスリトールアクリレートからなる群から選択される1種以上との混合物である、
上記[1]項に記載のハードコート積層フィルム。
[3].
下記特性(i)を満たす上記[1]又は[2]項に記載のハードコート積層フィルム:
(i)ハードコート積層フィルムを、上記第1ハードコートが表面になるようにJIS L0849:2013の学振形試験機に置き、上記学振形試験機の摩擦端子に#0000のスチールウールを取り付けた後、500g荷重を載せ、上記第1ハードコートの表面を往復9000回擦った後、当該摩擦箇所を目視観察したとき、傷が認められない。
[4].
上記透明樹脂フィルムが、
第一ポリ(メタ)アクリルイミド系樹脂層(α1);
芳香族ポリカーボネート系樹脂層(β);
第二ポリ(メタ)アクリルイミド系樹脂層(α2)が、
この順に直接積層された透明多層フィルムである、
上記[1]~[3]項の何れか1項に記載のハードコート積層フィルム。
[5].
上記[1]~[4]項の何れか1項に記載のハードコート積層フィルムの画像表示装置部材としての使用。
[6].
上記[1]~[4]項の何れか1項に記載のハードコート積層フィルムを含む画像表示装置。
上記第1ハードコートは、通常、本発明のハードコート積層フィルムの表面を形成する。上記第1ハードコートは、本発明のハードコート積層フィルムがタッチパネル機能を有する画像表示装置のディスプレイ面板として用いられる場合には、タッチ面を形成する。上記第1ハードコートは、良好な耐擦傷性を発現し、スチールウールなどで繰返し擦られたとしても傷が付かないようにする働きをする。
上記成分(A)トリペンタエリスリトールアクリレートを20質量%以上含む多官能(メタ)アクリレートは、1分子中に2以上の(メタ)アクリロイル基を有する(メタ)アクリレートであって、トリペンタエリスリトールアクリレートを20質量%以上、好ましくは40質量%以上、より好ましくは50質量%以上含むものである。上記成分(A)は、トリペンタエリスリトールアクリレートを100質量%以下、または100質量%未満、または90質量%以下、または80質量%以下含んでよい。ここでのトリペンタエリスリトールアクリレートの質量割合は、上記成分(A)の総和100質量%に対するものである。なお、本明細書において、(メタ)アクリレートとは、アクリレート又はメタクリレートの意味である。上記成分(A)は、1分子中に2以上の(メタ)アクリロイル基を有するため、紫外線や電子線等の活性エネルギー線により重合・硬化して、ハードコートを形成する働きをする。
上記成分(B)は、分子内に(メタ)アクリロイル基とフルオロポリエーテル基とを含有する化合物を含む撥水剤である。上記成分(B)は、分子内にフルオロポリエーテル基を含有する点で、上記成分(A)とは明確に区別される。上記成分(A)に含まれる多官能(メタ)アクリレートは、分子内にフルオロポリエーテル基を含有しない。本明細書において、1分子中に2以上の(メタ)アクリロイル基を含有し、かつフルオロポリエーテル基を含有する化合物は、上記成分(B)である。
加えて、第1ハードコートの厚みは、好ましくは5μm以上60μm以下または5μm以上30μm以下または5μm以上20μm以下または5μm以上15μm以下、あるいは7μm以上60μm以下または7μm以上30μm以下または7μm以上20μm以下または7μm以上15μm以下、あるいは8μm以上60μm以下または8μm以上30μm以下または8μm以上20μm以下または8μm以上15μm以下、あるいは9μm以上60μm以下または9μm以上30μm以下または9μm以上20μm以下または9μm以上15μm以下であってよい。
本発明のハードコート積層フィルムは、好ましくは、表層側から順に第1ハードコート、透明樹脂フィルムの層、及び第2ハードコートを有する。上記第2ハードコートを形成することにより、ハードコート積層フィルムを一方へカールさせようとする力(以下、カール力と略すことがある。)と他方へカールさせようとする力とが両方働くことになる。そしてこの2つのカール力が相殺されてゼロになるようにすることにより、カールの発生を抑制することができる。
上記第2ハードコート形成用塗料には、上記第2ハードコートの表面を平滑なものにする観点から、レベリング剤を含ませることが好ましい。
上記成分(C)のレベリング剤の配合量は、通常0.01質量部以上10質量部以下、好ましくは0.01質量部以上7質量部以下または0.01質量部以上4質量部以下または0.01質量部以上2質量部以下、あるいは好ましくは0.1質量部以上10質量部以下または0.1質量部以上7質量部以下または0.1質量部以上4質量部以下または0.1質量部以上2質量部以下、あるいは好ましくは0.2質量部以上10質量部以下または0.2質量部以上7質量部以下または0.2質量部以上4質量部以下または0.2質量部以上2質量部以下であってよい。
加えて、第2ハードコートの厚みは、好ましくは5μm以上60μm以下または5μm以上30μm以下または5μm以上20μm以下または5μm以上15μm以下、あるいは7μm以上60μm以下または7μm以上30μm以下または7μm以上20μm以下または7μm以上15μm以下、あるいは8μm以上60μm以下または8μm以上30μm以下または8μm以上20μm以下または8μm以上15μm以下、あるいは9μm以上60μm以下または9μm以上30μm以下または9μm以上20μm以下または9μm以上15μm以下であってよい。
また上記第2ハードコートの厚みは、耐カール性の観点から、上記第1ハードコートと同一の厚みであってよい。
上記透明樹脂フィルムは、上記第1ハードコートを、又は、上記第1ハードコート及び上記第2ハードコートを、その上に形成するための透明フィルム基材となる層である。上記透明樹脂フィルムとしては、高い透明性を有し、かつ着色のないものであること以外は制限されず、任意の透明樹脂フィルムを用いることができる。上記透明樹脂フィルムとしては、例えば、トリアセチルセルロース等のセルロースエステル系樹脂;ポリエチレンテレフタレート等のポリエステル系樹脂;エチレンノルボルネン共重合体等の環状炭化水素系樹脂;ポリメタクリル酸メチル、ポリメタクリル酸エチル、及びビニルシクロヘキサン・(メタ)アクリル酸メチル共重合体等のアクリル系樹脂;芳香族ポリカーボネート系樹脂;ポリプロピレン、及び4-メチル-ペンテン-1等のポリオレフィン系樹脂;ポリアミド系樹脂;ポリアリレート系樹脂;ポリマー型ウレタンアクリレート系樹脂;及びポリイミド系樹脂などのフィルムを挙げることができる。これらのフィルムは、無延伸フィルム、一軸延伸フィルム、及び二軸延伸フィルムを包含する。また、これらのフィルムは、これらの1種又は2種以上を、2層以上積層した積層フィルムを包含する。
(i)耐擦傷性1(耐スチールウール性)
ハードコート積層フィルムを、第1ハードコートが表面になるようにJIS L0849:2013の学振形試験機(摩擦試験機2形)に置いた。続いて、学振形試験機の摩擦端子に#0000のスチールウールを取り付けた後、500g荷重を載せ、摩擦端子の移動速度300mm/分、移動距離30mmの条件で、試験片の表面を往復9000回擦った後、当該摩擦箇所を目視観察した。傷が認められない場合には、更に往復1000回擦った後、当該摩擦箇所を目視観察する作業を繰り返した。耐擦傷性を、以下の基準で評価した。
A:往復13000回後でも傷は認められなかった。
B:往復12000回後では傷は認められなかったが、往復13000回後には傷を認めることができた。
C:往復11000回後では傷は認められなかったが、往復12000回後には傷を認めることができた。
D:往復10000回後では傷は認められなかったが、往復11000回後には傷を認めることができた。
E:往復9000回後では傷は認められなかったが、往復10000回後には傷を認めることができた。
F:往復9000回後で傷を認めることができた。
JIS K7361-1:1997に従い、日本電色工業株式会社の濁度計「NDH2000」(商品名)を用いて、全光線透過率を測定した。
JIS K7136:2000に従い、日本電色工業株式会社の濁度計「NDH2000」(商品名)を用いて、ヘーズを測定した。
JIS K7105:1981に従い、島津製作所社製の色度計「SolidSpec-3700」(商品名)を用いて、黄色度指数を測定した。
JIS-K6902:2007の曲げ成形性(B法)を参考とし、温度23℃±2℃、相対湿度50±5%にて24時間状態調節した試験片について、曲げ温度23℃±2℃、折り曲げ線はハードコート積層フィルムのマシン方向と直角となる方向とし、ハードコート積層フィルムの第1ハードコートが外側となるように折り曲げて曲面が形成されるようにして測定を行った。クラックが発生しなかった成形ジグのうち正面部分の半径の最も小さいものの正面部分の半径を最小曲げ半径とした。この「正面部分」は、JIS K6902:2007の18.2項に規定されたB法における成形ジグに関する同用語を意味する。
ハードコート積層フィルムの第1ハードコート面を、KRUSS社の自動接触角計「DSA20」(商品名)を使用し、水滴の幅と高さとから算出する方法(JIS R3257:1999を参照)で、水接触角を測定した。
縦150mm、横50mmの大きさで、ハードコート積層フィルムのマシン方向が試験片の縦方向となるように採取した試験片を、ハードコート積層フィルムの第1ハードコートが表面になるようにJIS L0849:2013の学振形試験機に置き、学振形試験機の摩擦端子に、4枚重ねのガーゼ(川本産業株式会社の医療用タイプ1ガーゼ)で覆ったステンレス板(縦10mm、横10mm、厚み1mm)を取付け、該ステンレス板の縦横面が試験片と接触するようにセットし、350g荷重を載せ、試験片の第1ハードコート面を、摩擦端子の移動距離60mm、速度1往復/秒の条件で往復1万回擦った後、上記(vi)の方法に従い、当該綿拭箇所の水接触角を測定した。水接触角が95度以上であるときは、更に往復5千回擦った後、上記(vi)の方法に従い、当該綿拭箇所の水接触角を測定する作業を繰り返し、以下の基準で評価した。
A:往復2万5千回後でも水接触角が95度以上であった。
B:往復2万回後では水接触角が95度以上であったが、2万5千回後は水接触角が95度未満であった。
C:往復1万5千回後では水接触角が95度以上であったが、2万回後は水接触角が95度未満であった。
D:往復1万回後では水接触角が95度以上であったが、1万5千回後は水接触角が95度未満であった。
E:往復1万回後で水接触角が95度未満であった。
ハードコート積層フィルムの表面(両方の面)を、蛍光灯の光の入射角をいろいろと変えて当てながら目視観察し、以下の基準で評価した。
◎(非常に良好):表面にうねりや傷がなかった。間近に光を透かし見ても、曇感がなかった。
○(良好):間近に光を透かし見ると、僅かな曇感のある箇所があった。
△(やや不良):間近に見ると、表面にうねりや傷を僅かに認められた。また曇感があった。
×(不良):表面にうねりや傷を多数認めることができた。また、明らかな曇感があった。
JIS K5600-5-6:1999に従い、ハードコート積層フィルムに第1ハードコート面側形成されたハードコート面側から、碁盤目の切れ込みを100マス(1マス=1mm×1mm)入れた後、密着試験用テープを碁盤目へ貼り付けて指でしごいた後、剥がした。評価基準はJISの上記規格の表1に従った。
分類0:カットの縁が完全に滑らかで、どの格子の目にも剥れがなかった。
分類1:カットの交差点において塗膜の小さな剥れがあった。クロスカット部分で影響を受けた面積は、明確に5%を上回ることはなかった。
分類2:塗膜がカットの縁に沿って、及び/又は交差点において剥れていた。クロスカット部分で影響を受けた面積は、明確に5%を超えるが15%を上回ることはなかった。
分類3:塗膜がカットの縁に沿って、部分的又は全面的に大剥れを生じており、及び/又は目のいろいろな部分が、部分的又は全面的に剥れていた。クロスカット部分で影響を受けた面積は、明確に15%を超えるが35%を上回ることはなかった。
分類4:塗膜がカットの縁に沿って、部分的又は全面的に大剥れを生じており、及び/又は数箇所の目が、部分的又は全面的に剥れていた。クロスカット部分で影響を受けた面積は、明確に35%を超えるが65%を上回ることはなかった。
分類5:剥れの程度が分類4を超える場合を本分類とした。
コンピュータにより自動制御を行うルーター加工機を使用し、ハードコート積層フィルムに、直径2mmの真円形の切削孔と直径0.5mmの真円形の切削孔を設けた。このとき使用したミルは刃先の先端形状が円筒丸型の超硬合金製4枚刃、ニック付きのものであり、刃径は加工箇所に合わせて適宜選択した。続いて直径2mmの切削孔について、その切削端面を目視又は顕微鏡(100倍)観察し、以下の基準で評価した。同様に直径0.5mmの切削孔について、その切削端面を目視又は顕微鏡(100倍)観察し、以下の基準で評価した。表には前者の結果-後者の結果の順に記載した。
◎(非常に良好):顕微鏡観察でもクラック、ヒゲは認められなかった
○(良好):顕微鏡観察でもクラックは認められなかった。しかしヒゲは認められた。
△(やや不良)目視でクラックは認められなかった。しかし、顕微鏡観察ではクラックが認められた。
×(不良):目視でもクラックが認められた。
JIS K5600-5-4に従い、750g荷重の条件で、三菱鉛筆株式会社の鉛筆「ユニ」(商品名)を用い、ハードコート積層フィルムの第1ハードコート面について鉛筆硬度を測定した。
(A)多官能(メタ)アクリレート:
(A-1)大阪有機化学工業株式会社のトリペンタエリスリトールアクリレート、ジペンタエリスリトールアクリレート、モノペンタエリスリトールアクリレート、及びポリペンタエリスリトールアクリレートの混合物「ビスコート#802」(商品名)、トリペンタエリスリトールアクリレートの含有量は60質量%。
(A-2)ジペンタエリスリトールヘキサアクリレート。(6官能)
(B-1)信越化学工業株式会社のアクリロイル基含有フルオロポリエーテル系撥水剤「KY-1203」(商品名):固形分20質量%
(B-2)ソルベイ(Solvay)社のメタクリロイル基含有フルオロポリエーテル系撥水剤「FOMBLIN MT70」(商品名):固形分70質量%
(B’-1)アクリル・エチレン共重合体ワックス系撥水剤
(C-1)ビックケミー・ジャパン株式会社のアクリル重合体系レベリング剤「BYK-399」(商品名):固形分100質量%
(D-1)ビニル基を有するシランカップリング剤で表面処理された平均粒子径20nmのシリカ微粒子
(E-1)双邦實業股分有限公司のフェニルケトン系光重合開始剤(1-ヒドロキシシクロヘキシルフェニルケトン)「SB-PI714」(商品名)
(E-2)BASF社のα-ヒドロキシアセトフェノン系光重合開始剤(2-ヒロドキシ-1-(4-(4-(2-ヒドロキシ-2-メチル-プロピオニル)-ベンジル)フェニル)-2-メチル-プロパン-1-オン)「イルガキュア127」(商品名)
(E-3)1-メトキシ-2-プロパノールとメチルイソブチルケトンとの1:1(質量比)混合溶剤
(E-4)ビニル基を有するシランカップリング剤で表面処理された平均粒子径20nmのシリカ微粒子
(H1-1)上記(A-1)100質量部、上記(B-1)2質量部(固形分換算0.40質量部)、上記(B-2)0.06質量部(固形分換算0.042質量部)、上記(E-1)3質量部、上記(E-2)1質量部、及び上記(E-3)120質量部を混合攪拌して塗料を得た。表1に配合を示す。なお、上記(B-1)と上記成分(B-2)については、表に固形分換算の値を記載している(以下同様)。
(H2-1)上記(A-1)100質量部、上記(C-1)0.5質量部、上記(E-1)3質量部、上記(E-2)1質量部、及び上記(E-3)120質量部を混合攪拌して塗料を得た。表1に配合を示す。
(P-1)2種3層マルチマニホールド方式の共押出Tダイ6、及び第一鏡面ロール8(溶融フィルムを抱いて次の移送ロールへと送り出す側のロール)と第二鏡面ロール9とで溶融フィルム7を押圧する機構を備えた引巻取機を含む装置(図3参照)を使用し、2種3層多層樹脂フィルムの両外層(α1層とα2層)としてエボニック社のポリ(メタ)アクリルイミド「PLEXIMID TT50」(商品名)を、中間層(β層)として住化スタイロンポリカーボネート株式会社の芳香族ポリカーボネート「カリバー301-4」(商品名)を、共押出Tダイから連続的に共押出し、α1層が第一鏡面ロール側となるように、回転する第一鏡面ロールと第二鏡面ロールとの間に供給投入し、押圧した。これによって、全厚み250μm、α1層の層厚み80μm、β層の層厚み90μm、α2層の層厚み80μmの透明樹脂フィルムを得た。このとき設定条件は、Tダイの設定温度300℃、第一鏡面ロールの設定温度130℃;第二鏡面ロールの設定温度120℃、引取速度6.5m/分であった。
上記(P-1)の両面にコロナ放電処理を行った。両面とも濡れ指数は64mN/mであった。次にα1層側の面の上に、ダイ方式の塗工装置を使用して、上記(H2-1)をウェット厚み22.6μm(硬化後厚み10.5μm)となるように塗布した。続いて炉内温度80℃に設定した乾燥炉を、入口から出口までパスするのに要する時間が1分間となるライン速度でパスさせた後、高圧水銀灯タイプの紫外線照射装置10と直径25.4cmの鏡面金属ロール11とを対置した硬化装置を使用し(図4参照)、鏡面金属ロール11の温度60℃、積算光量500mJ/cm2の条件で処理し、第2ハードコートを形成した。図4において、12はウェブ、13は抱き角を示す。次にα1層側の面の上に、ダイ方式の塗工装置を使用して、上記(H1-1)をウェット厚み22.6μm(硬化後厚み10.5μm)となるように塗布した。続いて炉内温度80℃に設定した乾燥炉を、入口から出口までパスするのに要する時間が1分間となるライン速度でパスさせた後、高圧水銀灯タイプの紫外線照射装置10と直径25.4cmの鏡面金属ロール11とを対置した硬化装置(図4参照)を使用し、鏡面金属ロール11の温度60℃、積算光量500mJ/cm2の条件で処理して、第1ハードコートを形成し、ハードコート積層フィルムを得た。上記試験(i)~(xi)を行った。結果を表1に示す。表中、「HC」はハードコートの略語を示す(以降の表でも同様)。
用いる塗料を表1又は2に示すものに変更したこと以外は、例1と同様にハードコート積層フィルムの作成及び物性測定・評価を行った。結果を表1又は2に示す。なお、例2Sは水接触角が最初から95度未満であったため、耐擦傷性2の試験は省略した。
第1及び第2ハードコートの厚みを表3に示す厚みに変更したこと以外は、例1と同様にハードコート積層フィルムの作成及び物性測定・評価を行った。結果を表3に示す。
用いる透明樹脂フィルムを表3又は4に示すものに変更したこと以外は、例1と同様にハードコート積層フィルムの作成及び物性測定・評価を行った。結果を表3又は4に示す。
なお、例5Sのハードコート積層フィルムに対する(i)耐擦傷性1(耐スチールウール性)の試験において、最初の摩擦回数を往復9000回に替えて往復1000回にする試験も行ってみたところ、往復1000回後で既に傷を認めることができた。
2:第一ポリ(メタ)アクリルイミド系樹脂層(α1)
3:芳香族ポリカーボネート系樹脂の層(β)
4:第二ポリ(メタ)アクリルイミド系樹脂層(α2)
5:第2ハードコート
6:Tダイ
7:溶融フィルム
8:第一鏡面ロール
9:第二鏡面ロール
10:紫外線照射装置
11:鏡面金属ロール
12:ウェブ
13:抱き角
Claims (6)
- 表層側から順に第1ハードコート、及び透明樹脂フィルムの層を有し、
上記第1ハードコートは、
(A)トリペンタエリスリトールアクリレートを20質量%以上含む多官能(メタ)アクリレート100質量部;及び
(B)(メタ)アクリロイル基含有フルオロポリエーテル系撥水剤0.01~7質量部
を含み、かつ無機粒子を含まない塗料から形成されており;
厚みが5~60μmである、
ハードコート積層フィルム。 - 上記成分(A)トリペンタエリスリトールアクリレートを20質量%以上含む多官能(メタ)アクリレートが、
トリペンタエリスリトールアクリレートと;
ジペンタエリスリトールアクリレート、モノペンタエリスリトールアクリレート、及び ポリペンタエリスリトールアクリレートからなる群から選択される1種以上との混合物である、
請求項1に記載のハードコート積層フィルム。 - 下記特性(i)を満たす、請求項1又は2に記載のハードコート積層フィルム:
(i)ハードコート積層フィルムを、上記第1ハードコートが表面になるようにJIS L0849:2013の学振形試験機に置き、上記学振形試験機の摩擦端子に#0000のスチールウールを取り付けた後、500g荷重を載せ、上記第1ハードコートの表面を往復9000回擦った後、当該摩擦箇所を目視観察したとき、傷が認められない。 - 上記透明樹脂フィルムが、
第一ポリ(メタ)アクリルイミド系樹脂層(α1);
芳香族ポリカーボネート系樹脂層(β);
第二ポリ(メタ)アクリルイミド系樹脂層(α2)が、
この順に直接積層された透明多層フィルムである、
請求項1~3の何れか1項に記載のハードコート積層フィルム。 - 請求項1~4の何れか1項に記載のハードコート積層フィルムの画像表示装置部材としての使用。
- 請求項1~4の何れか1項に記載のハードコート積層フィルムを含む画像表示装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/070,939 US20190016863A1 (en) | 2016-01-18 | 2017-01-13 | Hard coat laminate film |
| KR1020187020411A KR102651209B1 (ko) | 2016-01-18 | 2017-01-13 | 하드 코트 적층 필름 |
| CN201780006319.7A CN108463492B (zh) | 2016-01-18 | 2017-01-13 | 硬涂层层叠膜 |
| EP17741310.1A EP3406660B1 (en) | 2016-01-18 | 2017-01-13 | Hard coat laminate film |
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| JP2016-006936 | 2016-01-18 | ||
| JP2016006936 | 2016-01-18 |
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| WO2017126431A1 true WO2017126431A1 (ja) | 2017-07-27 |
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| PCT/JP2017/001027 Ceased WO2017126431A1 (ja) | 2016-01-18 | 2017-01-13 | ハードコート積層フィルム |
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| US (1) | US20190016863A1 (ja) |
| EP (1) | EP3406660B1 (ja) |
| JP (1) | JP6862183B2 (ja) |
| KR (1) | KR102651209B1 (ja) |
| CN (1) | CN108463492B (ja) |
| TW (1) | TWI735505B (ja) |
| WO (1) | WO2017126431A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7138447B2 (ja) * | 2018-02-21 | 2022-09-16 | 株式会社ダイセル | 伸長性ハードコートフィルムならびに成形体およびその製造方法 |
| JP7070234B2 (ja) * | 2018-08-20 | 2022-05-18 | 三菱ケミカル株式会社 | 活性エネルギー線硬化性樹脂組成物及びコーティング剤 |
| TWI734223B (zh) * | 2018-10-17 | 2021-07-21 | 南韓商Lg化學股份有限公司 | 抗反射膜、偏光板及顯示設備 |
| JP7372805B2 (ja) * | 2019-09-30 | 2023-11-01 | 日鉄ケミカル&マテリアル株式会社 | 筐体用コーティング膜および筐体用光硬化性コーティング樹脂組成物 |
| US20250258328A1 (en) * | 2020-08-27 | 2025-08-14 | Dai Nippon Printing Co., Ltd. | Optical film and image display device |
| JP7718840B2 (ja) * | 2021-03-31 | 2025-08-05 | 日東電工株式会社 | ハードコートフィルム、光学部材、及び画像表示装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3406660A1 (en) | 2018-11-28 |
| CN108463492B (zh) | 2024-04-26 |
| JP2017128114A (ja) | 2017-07-27 |
| EP3406660B1 (en) | 2022-06-01 |
| JP6862183B2 (ja) | 2021-04-21 |
| TW201736136A (zh) | 2017-10-16 |
| KR102651209B1 (ko) | 2024-03-25 |
| US20190016863A1 (en) | 2019-01-17 |
| KR20180101399A (ko) | 2018-09-12 |
| TWI735505B (zh) | 2021-08-11 |
| CN108463492A (zh) | 2018-08-28 |
| EP3406660A4 (en) | 2019-09-11 |
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