US20200040198A1 - Hard coating layered optical film, polarizer comprising the same, and image display comprising the hard coating layered optical film and/or the polarizer comprising the same - Google Patents

Hard coating layered optical film, polarizer comprising the same, and image display comprising the hard coating layered optical film and/or the polarizer comprising the same Download PDF

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Publication number
US20200040198A1
US20200040198A1 US16/265,907 US201916265907A US2020040198A1 US 20200040198 A1 US20200040198 A1 US 20200040198A1 US 201916265907 A US201916265907 A US 201916265907A US 2020040198 A1 US2020040198 A1 US 2020040198A1
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Prior art keywords
meth
hard coating
acrylate
coating film
functionality
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US16/265,907
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Inventor
Ching-Huang Chen
Tze-Chi Wang
Kuo-Hsuan Yu
Gang-Lun Fan
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BenQ Materials Corp
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BenQ Materials Corp
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Assigned to BENQ MATERIALS CORPORATION reassignment BENQ MATERIALS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHING-HUANG, FAN, Gang-lun, WANG, TZE-CHI, YU, KUO-HSUAN
Publication of US20200040198A1 publication Critical patent/US20200040198A1/en
Priority to US16/801,284 priority Critical patent/US11053393B2/en
Priority to US17/318,107 priority patent/US11447643B2/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/006—Anti-reflective coatings
    • 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
    • C08F290/067—Polyurethanes; Polyureas
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D135/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D135/02—Homopolymers or copolymers of esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/47—Levelling agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • G02B1/11—Anti-reflection coatings
    • G02B1/111—Anti-reflection coatings using layers comprising organic materials
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24364—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] with transparent or protective coating

Definitions

  • the present invention relates to a hard coating film for display device, and particularly relates to a hard coating film with enhanced abrasion resistance, and the polarizer comprising the hard coating film, and the display device comprising the hard coating film and/or the polarizer.
  • the screen surface of a display device such as cathode ray tube display (CRT), liquid crystal display (LCD), plasma display (PDP), electroluminescent display (ELD), field emission display (FED), organic light emitting diode display (OLED) can be scratched easily because of use and touch. The scratch will not only lower the image quality of the display device but also deteriorate the appearance of the display screen.
  • CTR cathode ray tube display
  • LCD liquid crystal display
  • PDP plasma display
  • ELD electroluminescent display
  • FED field emission display
  • OLED organic light emitting diode display
  • the hard coating optical film commonly is a triacetyl cellulose (TAC) base film with a hard coating layer formed thereon.
  • TAC triacetyl cellulose
  • the TAC film provides a good light transmittance but high moisture absorption and high birefringence.
  • it is a big challenge to the hard coating TAC film being used in GPS navigation devices, mobile devices and the like due to the insufficient weatherability of the hard coating TAC film.
  • the present invention is to provide a hard coating film with polymethyl methacrylate (PMMA) as base film.
  • PMMA polymethyl methacrylate
  • the hard coating film provides excellent adhesion between the hard coating layer and the base film, a good weatherability, satisfied hardness and abrasion resistance.
  • the present invention is to provide a hard coating film comprising a hard coating layer disposed on a polymethyl methacrylate (PMMA) base film.
  • the hard coating layer comprises a (meth)acrylate composition and an initiator, wherein the (meth)acrylate composition comprises a polyurethane (meth)acrylate oligomer with a functionality of 6 to 15, at least one (meth)acrylate monomer with a functionality of 3 to 6, at least one (meth)acrylate monomer with functionality of less than 3, wherein the molecular weight of the urethane (meth)acrylate oligomer is ranging between 1,000 and 4,500.
  • the (meth)acrylate composition comprises 35 to 50 weight parts of urethane (meth)acrylate oligomer with a functionality of 6 to 15, 12 to 20 weight parts of at least one (meth)acrylate monomer with a functionality of 3 to 6 and 1.5 to 12 weight parts of at least one (meth)acrylate monomer with functionality of less than 3.
  • the hard coating film can be coated one or one more functional coatings, such as a low refractive coating for forming a low refractive layer on the hard coating layer to obtain an anti-reflective hard coating film.
  • the low refractive layer comprises a binder resin, hollow silica nanoparticles, an initiator and a leveling agent.
  • the reflectivity of the present hard coating film is ranging between 1.2% and 1.4%.
  • the hard coating layer can further comprises silica nanoparticles and organic micro particles to obtain an antiglare hard coating on the PMMA base film for forming an antiglare hard coating film.
  • the antiglare hard coating comprising organic micro-particles and silica nanoparticles can also provide an excellent adhesion to the PMMA base film.
  • the mean spacing between peaks (Sm) is ranging between 20 ⁇ m and 50 ⁇ m
  • the arithmetic mean deviation of surface (Ra) is ranging between 0.03 ⁇ m to 0.09 ⁇ m
  • the largest peak to valley height (Ry) is ranging between 0.25 ⁇ m and 0.60 ⁇ m
  • the ten-point mean roughness (Rz) is ranging between 0.15 ⁇ m and 0.50 ⁇ m
  • the root mean square slope (P ⁇ q) is ranging between 0.5° and 1.6°.
  • the antiglare hard coating can be coated one or one more functional coatings, such as a low refractive coating for forming a low refractive layer on the antiglare hard coating to obtain an anti-reflective antiglare hard coating film.
  • the mean spacing between peaks (Sm) is ranging between 20 ⁇ m and 90 ⁇ m
  • the arithmetic mean deviation of surface (Ra) is ranging between 0.03 ⁇ m and 0.07 ⁇ m
  • the largest peak to valley height (Ry) is ranging between 0.15 ⁇ m to 0.40 ⁇ m
  • the ten-point mean roughness (Rz) is ranging between 0.10 ⁇ m to 0.50 ⁇ m.
  • a further object of the present invention is to provide a polarizer comprising a polarizing element, wherein the polarizer comprises the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film or the present anti-reflective antiglare hard coating film as above on the surface of the polarizer.
  • a yet further object of the present invention is to provide a display comprising the polarizer comprises the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film, the present anti-reflective antiglare hard coating film, or the present polarizer thereon on the surface of the display.
  • (meth)acrylate used herein refers to acrylate or methacrylate.
  • the invention is to provide a hard coating film on PMMA base film.
  • the hard coating film comprises a polymethyl methacrylate (PMMA) base film and a hard coating layer thereon.
  • the hard coating layer comprises a (meth)acrylate composition and an initiator, wherein the (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15, at least one (meth)acrylate monomer with a functionality of 3 to 6, at least one (meth)acrylate monomer with a functionality of less than 3, wherein the molecular weight of the urethane (meth)acrylate oligomer is ranging between 1,000 and 4,500.
  • the present hard coating film exhibits excellent adhesion between the hard coating layer and the PMMA base film, good weatherability, satisfied hardness and abrasion resistance.
  • the light transmittance of the PMMA base film is more than 80% and preferably is more than 90%.
  • the thickness of the PMMA base film used in the present is ranging between 10 ⁇ m and 100 ⁇ m, and preferably is ranging between 20 ⁇ m and 80 ⁇ m.
  • the thickness of the hard coating is ranging between 0.1 ⁇ m and 20 ⁇ m and is preferably between 1.0 ⁇ m and 10 ⁇ m.
  • the (meth)acrylate composition comprises 35 to 50 weight parts of the urethane (meth)acrylate oligomer with a functionality of 6 to 15, 12 to 20 weight parts of the at least one (meth)acrylate monomer with a functionality of 3 to 6, and 1.5 to 12 weight parts of the at least one (meth)acrylate monomer with a functionality of less than 3.
  • the number molecular weight of the urethane (meth)acrylate oligomer with the functionality of 6 to 15 is no less than 1,000 and preferably between 1,500 and 4,500.
  • the urethane (meth)acrylate oligomer with the functionality of 6 to 15 is preferably an aliphatic urethane (meth)acrylate oligomer with the functionality of 6 to 15.
  • the number molecular weight of the (meth)acrylate monomer with a functionality of 3 to 6 is less than 1,000 and preferably less than 800.
  • the suitable (meth)acrylate monomer with a functionality of 3 to 6 used in the present invention can be, but not limited to, for example, selected from at least one of the group consisting of pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate (DPP(M)A), dipentaerythritol hexa(meth)acrylate (DPH(M)A), trimethylolpropane tri(meth)acrylate (TMPT(M)A), ditrimethylolpropane tetra(meth)acrylate (DTMPT(M)A), pentaerythritol tri(meth)acrylate (PET(M)A) or the combination thereof.
  • the (meth)acrylate monomer with a functionality of 3 to 6 can be one of pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA) and dipentaerythritol pentaacrylate (DPPA), or combinations thereof.
  • PETA pentaerythritol triacrylate
  • DPHA dipentaerythritol hexaacrylate
  • DPPA dipentaerythritol pentaacrylate
  • the (meth)acrylate monomer with functionality of less than 3 can be a (meth)acrylate monomer with a functionality of 1 or 2 and a molecular weight of less than 500.
  • the suitable (meth)acrylate monomer with functionality of less than 3 for the present invention can be but not limited to, for example, selected from at least one of the consisting of 2-ethylhexyl (meth)acrylate (2-EH(M)A), 2-hydroxyethyl (meth)acrylate (2-HE(M)A), 2-hydroxypropyl (meth)acrylate (2-HP(M)A), 2-hydroxybutyl (meth)acrylate(2-HB(M)A), 2-butoxyethyl (meth)acrylate), 1,6-hexanediol di(meth)acrylate (HDD(M)A), cyclic trimethylolpropane formal (meth)acrylate (CTF(M)A), 2-phenoxyethyl (meth)acrylate
  • the (meth)acrylate monomer with functionality of less than 3 can be one of 1,6-hexanediol diacrylate (HDDA), cyclotrimethylolpropane acetal acrylate (CTFA) and 2-phenoxyethyl acrylate (PHEA), or combinations thereof.
  • HDDA 1,6-hexanediol diacrylate
  • CFA cyclotrimethylolpropane acetal acrylate
  • PHEA 2-phenoxyethyl acrylate
  • the initiator suitably used in the hard coating layer film of the present invention can be those commonly used in the related art, such as, for example, but not limited to, acetophenones, diphenylketones, propiophenones, benzophenones, ⁇ -hydroxyketones, fluorenylphosphine oxides and the like.
  • the initiator can be used alone or together.
  • the hard coating solution can be optionally added with an antistatic agent, a colorant, a flame retardant, a UV absorber, an antioxidant, a surface modifier and the like.
  • the hard coating layer can be optionally coated with a low refractive solution thereon to form a low refractive layer so as to obtain an anti-reflective hard coating film with a property of anti-reflection.
  • the refractive index of the low refractive layer is lower than that of the base film or the hard coating layer.
  • the low refractive layer on the hard coating layer can comprises a binder resin, hollow silica nanoparticles, an initiator and a leveling agent, wherein the leveling agent comprises a perfluoropolyether group-containing (meth)acrylic-modified organosilicone.
  • the binder resin suitably used in the low refractive layer can be a (meth)acrylate, for example, but not limited to, selected from at least one of the group consisting of pentaerythritol tri(meth)acrylate, dipentaerythritol hexa(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, trimethylolpropane tri(meth)acrylate, ditrimethylolpropane tetra(meth)acrylate and dipentaerythritol tetra(meth)acrylate, or the combinations thereof.
  • a (meth)acrylate for example, but not limited to, selected from at least one of the group consisting of pentaerythritol tri(meth)acrylate, dipentaerythritol hexa(meth)acrylate, pentaerythritol
  • the hollow silica nanoparticles in the low refractive layer are used to enhance the film strength and lower the refractivity thereof.
  • the term “hollow silica nanoparticles” used herein is directed to a structure with air cavities and/or a porous structure.
  • the average particle diameter of the hollow silica nanoparticles is ranging between 50 nm and 100 nm, and preferably ranging between 50 nm and 80 nm.
  • the content of the hollow silica nanoparticles is ranging from 60 weight parts to 130 weight parts relative to 100 weight parts of the binder resin, and preferably ranging from 80 weight parts to 110 weight parts relative to 100 weight parts of the binder resin.
  • the leveling agent used in the low reflective layer is a perfluoropolyether group-containing (meth)acrylic-modified organosilicone compound represented by the following formula (I) or a compound represented by the following formula (II):
  • Rf′ 12 is represented by the following formula:
  • n1 is ranging between 2 and 100.
  • the number average molecular weight of the perfluoropolyether group-containing (meth)acrylic-modified organosilicone compound is ranging between 1,500 and 16,000, and preferably ranging between 3,500 to 7,000.
  • the amount of the leveling agent comprising perfluoropolyether group-containing (meth)acrylic-modified organosilicone compound used in the low reflective layer is ranging from 5 weight parts to 20 weight parts relative to per 100 weight parts of (meth)acrylate resin, and preferably ranging from 8 weight parts to 17 weight parts.
  • the initiator suitably used in the low reflective layer of the present invention can be the initiators commonly used in the related art, such as, but not limited to, for example, selected from at least one of the group consisting of hydroxycyclohexy phenyl ketone, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, 2-hydroxy-2-methyl-1 phenyl propanone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropane-1-one, oligo [2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl] propanone] and 2-hydroxy-1-[4-[4-(2-hydroxy-2-methylpropanoyl)phenoxy]phenyl]-2-methylpropan-1-one, or the combinations thereof.
  • the initiators commonly used in the related art such as, but not limited to, for example, selected from at least one of the group consisting of hydroxycyclohexy phenyl ketone, diphenyl
  • the amount of the initiator used in the reflective film is ranging from 1.5 weight parts to 20 weight parts relative to per 100 weight parts of the (meth)acrylate resin, and preferably ranging from 2 weight parts to 17 weight parts.
  • the content of initiator is excess or insufficient, it will have adverse effect on the abrasion resistance of the anti-reflective film.
  • the hard coating film of the present invention can further be used as a functional film.
  • the hard coating layer can further be incorporated into particles to be performed as an antiglare hard coating.
  • the incorporated particles can be for example, organic microparticles and silica nanoparticles to make an irregular rough surface for achieving an antiglare property.
  • the silica nanoparticles suitable incorporated into the hard coating have a primary particle diameter (d 50 ) of 5 nm to 30 nm and a secondary particle diameter (d 50 ) of 50 nm to 120 nm.
  • the amount of the silica nanoparticles used in the hard coating layer is ranging from 0.2 weight percent (wt %) to 12 weight percent (wt %) and preferably ranging from 0.2 weight percent (wt %) to 8 weight percent (wt %).
  • the particle diameter of the organic microparticles incorporated into the antiglare hard coating is less than 5 ⁇ m and preferably ranging between 1 ⁇ m and 5 ⁇ m.
  • the suitable organic microparticles are the hydrophilic-modified polymethyl methacrylate microparticles, polystyrene microparticles, styrene-methyl methacrylate copolymer microparticles, polyethylene microparticles, epoxy resin microparticles, polysilicone microparticles, polyvinylidene fluoride or polyvinyl fluoride microparticle.
  • the surface of the organic microparticles can be hydrophilic-modified by 2-hydroxyethyl (meth)acrylate (2-HE(M)A) or (meth)acrylonitrile.
  • 2-HE(M)A 2-hydroxyethyl (meth)acrylate
  • the amount of the organic microparticles used in the hard coating layer will affect the anti-glare property thereof, the amount of the organic microparticles used in the antiglare hard coating is ranging between 0.3 wt % and 2 wt % and preferably ranging between 0.7 wt % and 1.8 wt %.
  • the present antiglare hard coating layer can optionally be incorporated with a re-coatable fluorine, (meth)acrylate or an organosilicone leveling agent.
  • the leveling agent incorporated into antiglare hard coating layer is for enhancing the surface coverage and smoothness of the coating layer and thus, the surface of the low reflective layer obtained after drying can be a smooth one with antifouling and abrasion resistance.
  • the leveling agent suitably used in the present antiglare hard coating layer can be such as, polyether-modified silicone, polyether-modified acrylate, fluorine-containing acrylate or perfluoroalkyl fluoride surfactant and the like.
  • the amount of leveling agent in the coating layer is ranging between 0.25 weight percent to 1.50 weight percent and is preferably between 0.45 weight percent and 1.05 weight percent.
  • the amount of the leveling agent is out of the above range, the abrasion resistance of the antiglare hard coating layer will be adversely affected.
  • the hard coating incorporating organic microparticles and silica nanoparticles can keep the excellent adhesion between the hard coating layer and the PMMA base film and provide a satisfied abrasion resistance.
  • the mean spacing between peaks (Sm) is ranging between 20 ⁇ m and 50 ⁇ m
  • the arithmetic mean deviation of surface (Ra) is ranging between 0.03 ⁇ m to 0.09 ⁇ m
  • the largest peak to valley height (Ry) is ranging between 0.25 ⁇ m and 0.60 ⁇ m
  • the ten-point mean roughness (Rz) is ranging between 0.15 ⁇ m and 0.50 ⁇ m
  • the root mean square slope (P ⁇ q) is ranging between 0.5° and 1.6°.
  • the mean spacing between peaks (Sm) is preferably between 25 ⁇ m and 45 ⁇ m
  • the arithmetic mean deviation of surface (Ra) is preferably between 0.03 ⁇ m to 0.08 ⁇ m
  • the largest peak to valley height (Ry) is preferably between 0.28 ⁇ m and 0.55 ⁇ m
  • the ten-point mean roughness (Rz) is preferably between 0.20 ⁇ m and 0.45 ⁇ m
  • the root mean square slope (P ⁇ q) is ranging between 0.7° and 1.4°. If the value of surface roughness is too low, the abrasion resistance will decrease.
  • the surface roughness is higher and the slope of the concavities and convexities in surface is too steep (higher slope angle), the surface is susceptible to be scratched.
  • an adequate surface roughness can enhance the abrasion resistance of the antiglare hard coating.
  • the present antiglare hard coating film with the adequate arithmetic mean deviation of surface, largest peak to valley roughness, ten-point mean roughness, mean spacing between peaks and root mean square slope (slope angle) provides a satisfied abrasion resistance.
  • the antiglare hard coating film can be further optionally coated with an above-mentioned low refractive layer to obtain an anti-reflective antiglare hard coating film.
  • the present antiglare hard coating film is coated with a low refractive layer to provide the anti-reflective property without lowering the abrasion resistance of the film surface.
  • the surface roughness of the anti-reflective antiglare hard coating film has a mean spacing between peaks (Sm) of between 20 ⁇ m and 90 ⁇ m, an arithmetic mean deviation of surface (Ra) of between 0.03 ⁇ m to 0.07 ⁇ m, a largest peak to valley height (Ry) of between 0.15 ⁇ m and 0.40 ⁇ m, a ten-point mean roughness (Rz) of between 0.10 ⁇ m and 0.50 ⁇ m.
  • the surface roughness of the anti-reflective antiglare hard coating film has a mean spacing between peaks (Sm) of between 30 ⁇ m and 80 ⁇ m, an arithmetic mean deviation of surface (Ra) of between 0.035 ⁇ m to 0.060 ⁇ m, a largest peak to valley height (Ry) of between 0.16 ⁇ m and 0.25 ⁇ m, a ten-point mean roughness (Rz) of between 0.20 ⁇ m and 0.40 ⁇ m.
  • the method for preparing the hard coating film of the present invention comprises the steps of mixing a (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15, at least one (meth)acrylate monomer with a functionality of 3 to 6, at least one (meth)acrylate monomer with functionality of less than 3, an initiator and adequate solvent(s) and stirred evenly for preparing a hard coating solution; optionally adding a leveling agent into the hard coating solution; and coating the hard coating solution on the PMMA base film, evaporating the solvent(s) and curing by radiation or electron beam for forming a hard coating on the PMMA base film to obtain a hard coating film.
  • a (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15, at least one (meth)acrylate monomer with a functionality of 3 to 6, at least one (meth)acrylate monomer with functionality of less than 3, an initiator and adequate solvent(
  • the present hard coating film can be further coated with a low refractive layer.
  • the low refractive layer is prepared by mixing and stirring a binder resin, hollow silica nanoparticles, an initiator, a leveling agent comprising a perfluoropolyether group-containing (meth)acrylic-modified organosilicone as above and an adequate solvent(s) to make a low refractive solution; coating the low refractive solution on the hard coating layer, evaporating the solvent(s) and curing the coating layer by radiation or electron beam for forming a low refractive layer on the hard coating layer to obtain an anti-reflective hard coating film.
  • the present hard coating film can be further prepared to form an antiglare hard coating film.
  • the method for preparing the antiglare hard coating film comprises the steps pf mixing and stirring a (meth)acrylate composition comprising a urethane (meth)acrylate oligomer with a functionality of 6 to 15, at least one (meth)acrylate monomer with a functionality of 3 to 6, at least one (meth)acrylate monomer with functionality of less than 3, an initiator, a leveling agent, organic microparticles, silica nanoparticles and suitable solvent(s) to prepare an antiglare hard coating solution; and coating the antiglare hard coating solution on a PMMA base film, evaporating to remove the solvent(s), radiation-curing or electron beam-curing the coating layer to form an antiglare hard coating layer on the PMMA base film to obtain a antiglare hard coating film.
  • the present antiglare hard coating film can be further coated with a low refractive layer to obtain an anti-reflective antiglare hard coating film.
  • the low refractive layer is prepared by mixing a binder resin, hollow silica nanoparticles, an initiator, a leveling agent comprising a perfluoropolyether group-containing (meth)acrylic-modified organosilicone and suitable solvent(s) to obtain a low refractive solution; coating the low refractive solution on the antiglare hard coating layer; and evaporating the solvent, radiation-curing or electron beam curing the coating layer to form a low refractive layer on the antiglare hard coating film.
  • the solvents suitable for preparation of the present hard coating, the antiglare hard coating, the low refractive layer can be the organic solvents commonly used in the related art, such as ketones, aliphatic, cycloaliphatic or aromatic hydrocarbons, ethers, esters or alcohols.
  • the hard coating solution and the low refractive solution can use one or one more organic solvents.
  • the suitable solvent can be such as, acetone, butanone, cyclohexanone, methyl isobutyl ketone, hexane, cyclohexane, dichloromethane, dichloroethane, toluene, xylene, propylene glycol methyl ether, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, n-butanol, isobutanol, isopropanol, diacetone alcohol, propylene glycol methyl ether acetate, cyclohexanol or tetrahydrofuran and the like.
  • the hard coating solution, antiglare hard coating solution and the low refractive solution can be applied to the base film surface by any usual method in the related art, for example, bar coating, doctor blade coating, dip coating, roll coating, spinning coating, slot-die coating and the like.
  • the further object of the present invention is to provide a polarizer comprising a polarizing element, wherein the surface of the polarizer comprises the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film or the anti-reflective antiglare hard coating film.
  • a yet further object of the present invention is to provide a display comprising the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film or the anti-reflective antiglare hard coating film and/or a polarizer as above on the surface of the display.
  • urethane acrylate oligomer (functionality 6, molecular weight of about 1,520, viscosity of 25,000 cps (at 25° C.), commercially obtained from Miwon, Korea), 4.5 weight parts of PETA, 12 weight parts of DPHA, 6 weight parts of HDDA, 4 weight parts of photoinitiator (Chemcure-481, commercially obtained from Chembridge, Taiwan), 24.5 weight parts of ethyl acetate and 75 weight parts of n-butyl acetate were mixed and stirred for 1 hour to prepare a hard coating solution.
  • the hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m, and then, the coating film was dried at 90° C.
  • urethane acrylate oligomer functionality 15, molecular weight about 3,600, viscosity of 4,700 cps (at 60° C., commercially obtained from Chemton, Korea)
  • 4.5 weight parts of PETA 12 weight parts of DPHA, 6 weight parts of HDDA, 4 weight parts of photoinitiator (Chemcure-481, commercially obtained from Chembridge, Taiwan)
  • 24.5 weight parts of ethyl acetate and 75 weight parts of n-butyl acetate were mixed and stirred for 1 hour to prepare a hard coating solution.
  • the hard coating solution was coated on a PMMA base film with thickness of 40 ⁇ m, and then, the coating film was dried at 90° C.
  • urethane acrylate oligomer (functionality 9, molecular weight about 2,000, viscosity of about 86,000 cps (at 25° C.), commercially obtained from Allnex, USA), 4.5 weight parts of PETA, 12 weight parts of DPHA, 6 weight parts of CTFA, 4 weight parts of photoinitiator (Chemcure-481, commercially obtained from Chembridge, Taiwan), 24.5 weight parts of ethyl acetate and 75 weight parts of n-butyl acetate were mixed and stirred for 1 hour to prepare a hard coating solution.
  • the hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m, and then, the coating film was dried at 90° C.
  • urethane acrylate oligomer (functionality 9, molecular weight about 2,000, viscosity of about 86,000 cps (at 25° C.), commercially obtained from Allnex, USA), 4.5 weight parts of PETA, 12 weight parts of DPHA, 6 weight parts of PHEA, 3.5 weight parts of photoinitiator (Chemcure-481, commercially obtained from Chembridge, Taiwan), 0.5 weight parts of photoinitiator (TR-PPI-one, commercially obtained from Tronly New Electronic Materials, Hong Kong), 24.5 weight parts of ethyl acetate and 75 weight parts of n-butyl acetate were mixed and stirred for 1 hour to prepare a hard coating solution.
  • the hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m, and then, the coating film was dried at 90° C. oven for 30 seconds and cured by exposing to UV light in a cumulative dosage of 40 mJ/cm 2 under nitrogen atmosphere to obtain a hard coating film with a thickness of 5 ⁇ m formed on the PMMA base film.
  • the optical properties, hardness and abrasion resistance of the obtained hard coating film were determined and the adhesion between the hard coating layer and the PMMA base film was also determined. The results were shown in table 1.
  • urethane acrylate oligomer (functionality 9, molecular weight about 2,000, viscosity of about 86,000 cps (at 25° C.), commercially obtained from Allnex, USA), 4.5 weight parts of PETA, 12 weight parts of DPHA, 6 weight parts of HDDA, 3.5 weight parts of photoinitiator (Chemcure-481, commercially obtained from Chembridge, Taiwan), 0.5 weight parts of photoinitiator (TR-PPI-one, commercially obtained Tronly New Electronic Materials, Hong Kong), 24.5 weight parts of ethyl acetate and 75 weight parts of n-butyl acetate were mixed and stirred for 1 hour to prepare a hard coating solution.
  • the hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m, and then, the coating film was dried at 90° C. oven for 30 seconds and cured by exposing to UV light in a cumulative dosage of 40 mJ/cm 2 under nitrogen atmosphere to obtain a hard coating film with a thickness of 5 ⁇ m formed on the PMMA base film.
  • the optical properties, hardness and abrasion resistance of the obtained hard coating film were determined and the adhesion between the hard coating layer and the PMMA base film was also determined. The results were shown in table 1.
  • the hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m, and then, the coating film was dried at 90° C. oven for 30 seconds and cured by exposing to UV light in a cumulative dosage of 40 mJ/cm 2 under nitrogen atmosphere to obtain a hard coating film with a thickness of 5 ⁇ m formed on the PMMA base film.
  • the optical properties, hardness and abrasion resistance of the obtained hard coating film were determined and the adhesion between the hard coating layer and the PMMA base film was also determined. The results were shown in table 1.
  • the optical properties of the hard coating films obtained from the Examples were measured according to JIS test methods, wherein the haze was measured according to the test method of JIS K7136 by NDH-2000 Haze Meter (manufactured by Nippon Denshoku Industries, Japan), and the light transmittance was measured according to the test method of JIS K7361 by NDH-2000 Haze Meter (manufactured by Nippon Denshoku Industries, Japan).
  • the films obtained from the Examples were conducted the hardness measurement as determined by the pencil hardness test in accordance with JIS K 5400 using Mitsubishi 2H pencils.
  • the hard coating films obtained from the Examples were conducted the abrasion resistance measurement.
  • the surface of the hard coating film was rubbed by a steel wood #0000 with various loads (g/cm 2 ) at a speed of 60 rpm for 10 times.
  • the rubbing load was increased to rub the surface of the hard coating film.
  • the maximum load with no scratch observed on the film surface was recorded.
  • the hard coating films obtained from the Examples were conducted the adhesion test.
  • the adhesion was tested by the cross-cut test according to JIS K 5600-5-6 to measure the adhesion between the hard coating and the PMMA base film.
  • the hard coating films comprising a PMMA base film obtained from Examples 1 to 6 have excellent adhesion between the hard coating layer and the PMMA base film.
  • the hardness and abrasion resistance hard of the hard coating films are all satisfied and the haze and light transmittance thereof are suitable for display devices.
  • the low refractive solution was coated on the hard coating layer of the hard coating film of Example 3, and then, the coating film was dried at 80° C. oven for 2 minutes and cured by exposing to UV light in a cumulative dosage of 350 mJ/cm 2 under nitrogen atmosphere to obtain a hard coating film comprising a low refractive layer with a thickness of 0.13 ⁇ m formed on the hard coating layer to obtain an anti-reflective hard coating film.
  • the optical properties of the obtained anti-reflective hard coating film were determined by the measurements as Example 1, wherein the haze was measured as 0.78% and the light transmittance was measured as 94.73%.
  • This anti-reflective hard coating was determined the reflectivity measurement.
  • the obtained anti-reflective hard coating film was adhered to a black sheet and subjected to a reflectivity measurement by means of a spectrophotometer (model: U-4100, manufactured by Hitachi, Ltd.) at the wavelength of 380-780 nm, wherein the reflectivity was measured as 1.36%.
  • the anti-reflective hard coating film was also conducted the abrasion resistance measurement.
  • the surface of the low refractive layer of the anti-reflective hard coating film was rubbed by a steel wood #0000 with a load of 500 g/cm 2 for 10 times and checked if any scratch was observed.
  • the surface of the low refractive layer of this anti-reflective hard coating film was observed no scratches under a rub load of 500 g/cm 2 .
  • the obtained anti-reflective hard coating film has excellent abrasion resistance.
  • PETA 97.75 weight parts of PETA, 2.25 weight parts of photoinitiator (KIP-160, commercially obtained from IGM Resin, Netherland), 45 weight parts of a perfluoropolyether group-containing (meth)acrylic-modified organosilicone (KY-1203, solid content 20%, solvent: methyl isobutyl ketone, commercially obtained from Shin-Etsu Chemical, Japan), 438 weight parts of hollow silica nanoparticles dispersion (Thrulya 4320, solid content 20%, average particle diameter 60 nm, solvent: methyl isobutyl ketone, commercially obtained from JGC Catalysts and Chemicals, Japan), 200 weight parts of ethyl acetate, 200 weight parts of n-butyl acetate, 3442 weight parts of methyl isobutyl ketone and 5365 weight parts of propylene glycol methyl ether were mixed and stirred for 10 minutes for a low refractive solution.
  • the low refractive solution was coated on the hard coating layer of the hard coating film of Example 5.
  • the coated low refractive layer was dried at 80° C. oven for 2 minutes and cured by exposing to UV light in a cumulative dosage of 350 mJ/cm 2 under nitrogen atmosphere.
  • a 0.13 ⁇ m low refractive layer was formed on the anti-reflective hard coating film.
  • the anti-reflective hard coating film was conducted the optical properties measurements as Example 1, wherein the haze was measured as 0.84% and the light transmittance was measured as 94.59%.
  • This anti-reflective hard coating was determined the reflectivity measurement.
  • the obtained anti-reflective hard coating film was adhered to a black sheet and subjected to a reflectivity measurement by means of a spectrophotometer (model: U-4100, manufactured by Hitachi, Ltd.) at the wavelength of 380-780 nm, wherein the reflectivity was measured as 1.38%.
  • the anti-reflective hard coating film was conducted abrasion resistance measurement.
  • the surface of the low refractive layer of the anti-reflective hard coating film was rubbed by a steel wood #0000 with a load of 500 g/cm 2 for 10 times and checked if any scratch was observed.
  • the surface of the low refractive layer of this anti-reflective hard coating film was observed no scratch under a rub load of 500 g/cm 2 .
  • the obtained anti-reflective hard coating film has excellent abrasion resistance.
  • the antiglare hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m and then, the coating film was dried and cured by exposing to UV light in a cumulative dosage of 89 mJ/cm 2 under nitrogen atmosphere to obtain an antiglare hard coating film with a thickness of 4 ⁇ m formed on the PMMA base film.
  • the antiglare hard coating film was conducted glossiness, clarity measurement and glare evaluation.
  • the glossiness measurement was conducted by adhering the antiglare hard coating film to a black sheet and measuring the gloss at an angle of 200 by BYK micro-Gloss meter according to JIS Z 8741.
  • the clarity measurement was conducted by cutting the antiglare hard coating film into 5 ⁇ 8 cm 2 and using an image clarity meter SUGA ICM-IT according to JIS K 7374 to measure the value at the grating with the width of 0.125 mm, 0.25 mm, 0.50 mm, 1.00 mm and 2.00 mm and calculate the total value.
  • Glare evaluation was conducted by adhering the antiglare hard coating film to a black sheet, setting the laminated film before a fluorescent lamp and visual-observing if the fluorescent image was blurring according to the criteria: “X”: strong glare, “o”: mildly glare, “ ⁇ ”: no glare.
  • the antiglare evaluations of the antiglare hard coating film prepared in the Examples were listed in Table 2.
  • the low refractive solution prepared in Example 7 was coated on the antiglare hard coating layer of the antiglare hard coating film.
  • the coated low refractive layer was dried at 80° C. oven for 2 minutes and cured by exposing to UV light in a cumulative dosage of 350 mJ/cm 2 under nitrogen atmosphere.
  • a low refractive layer with a thickness of 0.13 ⁇ m was formed on the anti-reflective hard coating film to obtain an anti-reflective antiglare hard coating film.
  • the anti-reflective antiglare hard coating film was conducted the haze, light transmittance, reflectivity, surface roughness measurements as the previous Examples. The results were listed in Table 3.
  • the anti-reflective antiglare film was conducted the abrasion resistance measurement under the loads of 500 g/cm 2 and 1000 g/cm 2 . The results were listed in Table 3.
  • An antiglare film was prepared by the procedures same as in Example 9, except that the hard coating solution was replaced by the hard coating solution of Example 6.
  • the antiglare hard coating film was conducted the haze, light transmittance, glossiness, clarity and surface roughness measurements and antiglare evaluation. The results were listed in Table 2.
  • the antiglare hard coating layer of this antiglare hard coating film was further coated with the low refractive layer solution prepared in Example 7 to obtain an anti-reflective antiglare hard coating film.
  • This anti-reflective antiglare hard coating film was conducted again a surface roughness measurement, haze and light transmittance measurements. The results were listed in Table 3.
  • the anti-reflective antiglare film was conducted the abrasion resistance measurement under the loads of 500 g/cm 2 and 1000 g/cm 2 . The results were listed in Table 3.
  • the antiglare hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m and then, the coating film was dried and cured by exposing to UV light in a cumulative dosage of 89 mJ/cm 2 under nitrogen atmosphere to obtain an antiglare hard coating film with a thickness of 4 ⁇ m formed on the PMMA base film.
  • the obtained antiglare hard coating film was conducted haze, light transmittance, glossiness and clarity measurements and glare evaluation. The results were shown in table 2.
  • Example 7 The low refractive solution prepared in Example 7 was coated on the antiglare hard coating layer of the antiglare hard coating film to provide a low refractive layer on the antiglare hard coating layer for preparing an anti-reflective antiglare hard coating film.
  • This anti-reflective antiglare film was conducted the surface roughness measurement, haze and light transmittance measurement. The obtained results were listed in Table 3.
  • the anti-reflective antiglare film was conducted the abrasion resistance measurement under the loads of 500 g/cm 2 and 1000 g/cm 2 . The results were listed in Table 3.
  • the antiglare hard coating solution was coated on a PMMA base film with a thickness of 40 ⁇ m and then, the coating film was dried and cured by exposing to UV light in a cumulative dosage of 89 mJ/cm 2 and an intensity of 380 mW/cm 2 under nitrogen atmosphere to obtain an antiglare hard coating film with a thickness of 4 ⁇ m formed on PMMA base film to obtain an antiglare hard coating film.
  • the antiglare hard coating film was conducted the glossiness and clarity measurements, the glare evaluation and the surface roughness measurement. The results were listed in Table 2.
  • Example 7 The low refractive solution prepared in Example 7 was coated on the antiglare hard coating layer of the antiglare hard coating film to provide a low refractive layer on the antiglare hard coating layer for preparing an anti-reflective antiglare hard coating film.
  • This anti-reflective antiglare film was conducted the surface roughness measurement, the haze and light transmittance measurements. The obtained results were listed in Table 3.
  • the anti-reflective antiglare film was conducted the abrasion resistance measurement under the loads of 500 g/cm 2 and 1000 g/cm 2 . The results were listed in Table 3.
  • the hard coating films, the anti-reflective hard coating films, the antiglare hard coating films and the anti-reflective antiglare hard coating films of the present invention exhibit an excellent adhesion between the hard coating layer and the PMMA base film and good abrasion resistance on the film surface thereof.
  • the hard coating films, the anti-reflective hard coating films, the antiglare hard coating films and the anti-reflective antiglare hard coating films of the present invention also exhibit good optical properties.
  • the present invention is further to provide a polarizer comprising a polarizing element, wherein the polarizer comprises the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film or the present anti-reflective antiglare hard coating film as above thereon.
  • the present invention is yet further to provide a display comprising the polarizer comprises the present hard coating film, the present anti-reflective hard coating film, the present antiglare hard coating film, the present anti-reflective antiglare hard coating film, or the present polarizer thereon on the surface of the display.

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CN113583283A (zh) * 2020-04-30 2021-11-02 宁波安特弗新材料科技有限公司 一种高硬度硬涂膜及其制备方法
CN113912893A (zh) * 2021-12-15 2022-01-11 苏州奥美材料科技有限公司 一种炫彩薄膜及其制备方法
CN115016049A (zh) * 2022-06-29 2022-09-06 宁波惠之星新材料科技有限公司 一种抗反射组合物、光学膜及其制备方法和应用
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