WO2014142582A1 - 플라스틱 필름의 제조방법 - Google Patents
플라스틱 필름의 제조방법 Download PDFInfo
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- WO2014142582A1 WO2014142582A1 PCT/KR2014/002126 KR2014002126W WO2014142582A1 WO 2014142582 A1 WO2014142582 A1 WO 2014142582A1 KR 2014002126 W KR2014002126 W KR 2014002126W WO 2014142582 A1 WO2014142582 A1 WO 2014142582A1
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/807—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with nitrogen containing compounds
- C08G18/8077—Oximes
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- 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
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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
- 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
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- 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
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08J2433/06—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 of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/08—Homopolymers or copolymers of acrylic acid esters
Definitions
- the present invention relates to a method for producing a plastic film.
- it is related with the manufacturing method of the plastic film which can form the plastic film which shows high hardness and the outstanding workability.
- Glass or tempered glass is generally used as a material having excellent mechanical properties in the display window or the front plate of the mobile device.
- the glass causes the mobile device to be heavier due to its own weight, and there is a problem of breakage due to the external stratification.
- Plastic resin is being researched as a substitute material for glass.
- Plastic resin films are lightweight and less prone to break, making them suitable for the trend toward lighter mobile devices.
- films have been proposed for coating a hard coat layer on a support substrate to achieve films with high hardness and wear resistance.
- a method of increasing the thickness of the hard coating layer may be considered.
- the surface hardness In order to secure the surface hardness to replace the glass it is necessary to implement a constant thickness of the hard coating filling.
- the surface hardness can be increased.
- the wrinkles and curls increase due to the curing shrinkage of the hard coating layer, cracking or peeling of the hard coating layer is likely to occur. Is not easy.
- several methods have been proposed to achieve high hardness of plastic films and to solve the problem of curling due to cracking and curing shrinkage of the hard coat layer.
- Korean Unexamined Patent Publication No. 2010-0041992 discloses a plastic film composition excluding a monomer and using a binder resin including an ultraviolet curable polyurethane acrylate-based oligomer.
- the plastic film disclosed above is not strong enough to replace the glass panel of the display with a pencil hardness of about 3H.
- the present invention provides a method for producing a plastic film that can form a plastic film excellent in workability without showing curling, warping or cracking while exhibiting high hardness.
- the present invention comprises the steps of applying a coating composition comprising a 3 to 6 functional acrylate-based monomer, a thermosetting prepolymer composition, inorganic fine particles, and a photoinitiator on at least one side of the support substrate; And it provides a method for producing a plastic film comprising the step of forming a coating layer by performing a photocuring and thermal curing for the coating composition.
- plastic film of the present invention it is possible to produce a plastic film with high hardness, impact resistance, scratch resistance, high transparency and excellent curlability and less curl or crack generation, and such plastic film is made of glass or tempered glass. It can be usefully applied to mobile devices, display devices, front panels of various instrument panels, and display parts by replacing the cover plates.
- Method for producing a plastic film of the present invention the step of applying a coating composition comprising a 3 to 6 functional acrylate-based monomer, a thermosetting prepolymer composition, inorganic fine particles, and a photoinitiator on at least one side of the support substrate; And photocuring and thermosetting the coated coating composition. Forming a coating layer.
- first and second are used to describe various components, and the terms are used only for the purpose of distinguishing one component from other components.
- each component when each component is referred to as being formed “on” or “on” of each component, it means that each component is directly formed on each component, or other components are each between the layers, it means that can be formed additionally on the body for i, the substrate.
- the coating composition containing a 3-6 functional acrylate type monomer, a thermosetting prepolymer composition, an inorganic fine particle, and a photoinitiator is first apply
- coats the said coating composition is a transparent plastic resin normally used, it can use without a restriction
- the Supported substrates include, for example, polyesters such as polyethylene terephthalate (PET), polyethylenes such as ethylene vinyl acetate (EVA), cyclic olefin polymers (COP) ), Cyclic olefin copolymers (cyclic olefin copolymers, COC), polyacrylates (polyacrylate, PAC), polycarbonates (polycarbonate, PC), polyethylene (PE, PE), polymethylmethacrylate (PMMA), Polyetheretherketon (PEEK), polyethylenenaphthalate (PEN), polyetherimide (PEI), polyimide (PI), triacetylcellulose (TAC), MMA (methyl methacrylate), or a film containing a fluorine resin or the like.
- the support substrate may be a single layer or a multilayer structure including two or more substrates made of the same or different materials as necessary, but is not particularly limited.
- the supporting substrate is a multi-layered structure of polyethylene terephthalate (PET), the structure of two or more layers formed by co-extrusion of polymethyl methacrylate (PMMA) / polycarbonate (PC) It can be a substrate.
- PET polyethylene terephthalate
- PMMA polymethyl methacrylate
- PC polycarbonate
- the support substrate may be a substrate including a copolymer of polymethyl methacrylate (PMMA) and polycarbonate (PC).
- PMMA polymethyl methacrylate
- PC polycarbonate
- the thickness of the supporting substrate is not particularly limited, but a substrate having a thickness of about 30 to about 1,200 ⁇ m, or about 50 to about 800 may be used.
- the coating composition applied to one side of the support substrate includes a 3 to 6 functional acrylate monomer, a thermosetting prepolymer composition, inorganic fine particles, and a photoinitiator.
- the acrylate-based means both acrylates and derivatives in which substituents are introduced into acrylates or methacrylates.
- the 3 to 6 functional acrylate monomers are trimethyl propane triacrylate (TMPTA), trimethylol propane hydroxy Triacrylate (TMPEOTA), glycerin propoxylated triacrylate (GPTA), pentaerythritol to tetraacrylate (PETA), or dipentaerythr to nuxaacrylate (DPHA).
- TMPTA trimethyl propane triacrylate
- TMPEOTA trimethylol propane hydroxy Triacrylate
- GPTA glycerin propoxylated triacrylate
- PETA pentaerythritol to tetraacrylate
- DPHA dipentaerythr to nuxaacrylate
- the 3 to 6 functional acrylate monomers may be used alone or in combination with each other.
- the 3 to 6 functional acrylate-based monomers are cross-polymerized with each other by ultraviolet irradiation in a photocuring step to be described later to form a crosslinked copolymer, and may provide high hardness to a coating layer formed by including the crosslinked copolymer. .
- the 3 to 6 functional acrylate monomers are based on 100 parts by weight of solids containing the 3 to 6 functional acrylate monomers, thermosetting prepolymer composition, photoinitiator, and inorganic fine particles (Based on the solid component except the solvent when the thermosetting prepolymer composition is included in a dissolved form in a solvent), about 40 to about 80 parts by weight, or about 50 to about 80 parts by weight.
- the 3 to 6 functional acrylate monomer is in the above range, it is possible to form a polar film having good physical properties such as high hardness and scratch resistance.
- the coating composition of the present invention comprises a thermosetting prepolymer composition.
- the thermosetting prepolymer composition refers to a composition including two or more kinds of oligomers or polymers having a functional group capable of thermal curing and crosslinking polymerization with each other, and may be included in the coating composition in the form of dissolving or not dissolving in a suitable solvent.
- the thermosetting prepolymer composition may comprise a polyester-based polyurethane oligomer, poly, and polyisocyanate. More specifically, the heat-curable prepolymer composition of 10 to 40 parts by weight 0/0, the polyol of the polyester polyurethane oligomer, based on the total weight of the solid content of 5 to 30 parts by weight 0/0, and the polyisocyanate from 50 to It may include 80% by weight.
- the polyester-based polyurethane oligomer has a number average molecular weight of about 1,000 to about 100,000 g / mol, In a solution dissolved in cyclonucleic acid at a concentration of 15%, the viscosity is about 100 to about 3,000 cps, and Tg may have a property of -30 to 40 ° C.
- the polyester-based polyurethane oligomer having the above physical properties may be purchased directly or polymerized.
- ESTANE® 5701 TPU ESTANE® 5703 TPU
- ESTANE® 5707 TPU ESTANE® 5708 TPU
- ESTANE® 5713 TPU ESTANE® 5714 TPU
- ESTANE® 5715 TPU ESTANE® 5719 TPU
- ESTANE ® 5778 TPU and the like.
- the poly silver may have a number average molecular weight of about 1,000 to about 100,000 g / mol.
- the polyol is not particularly limited, but preferably, the polyol is one selected from the group consisting of polyethylene glycol polyols, polycaprolactone polyols, polyester polyols, polyether polyols, polyacrylic polys, and polycarbonate poly (s). The above can be used. More specific examples of the pulleys include 1,4-butanedi, diethylene glycol, dipropylene glycol, polyalkylene glycol having an alkyl group having 1 to 5 carbon atoms, and polyalkylene ether poly.
- the polyalkylene ether polys include polytetramethylene ether glycol, poly (oxytetramethylene) ether glycol, poly (oxytetramethylene) ether glycol, poly (oxy-1,2-propylene) ether glycol and poly (oxy-1, 2-butylene) ether glycol may be used at least one selected from the group consisting of.
- the polyisocyanate may have a number average molecular weight of about 500 to about 50,000 g / mol.
- the type of the polyisocyanate is not particularly limited, but preferably, a polymer obtained by polymerizing aliphatic and aromatic isocyanates may be used.
- aliphatic diisocyanate examples include 1,4-tetramethylene diisocyanate, 1,6-nuclemethylene diisocyanate, 1,4-cyclonuclear diisocyanate, isophorone diisocyanate or ⁇ , ⁇ -xylylene diisocyanate
- aromatic polyisocyanate may include 4,4'-diphenylmethane diisocyanate, 1,3-phenylene diisocyanate, or toluene diisocyanate.
- the substrate in addition to the 3 to 6 functional acrylate monomer cross-polymerized by light irradiation, the substrate is dried together with the coating layer during the photocuring process of the 3 to 6 functional acrylate monomer by including the thermosetting prepolymer composition. It is possible to compensate for the occurrence of cure shrinkage or curl phenomenon.
- the curling phenomenon refers to a phenomenon in which corners or the like are curved or curled when the film having a flat structure is spread on a flat surface, which may occur as the acrylate shrinks during photocuring by ultraviolet rays.
- the plastic film In order to use the plastic film as a cover plate replacement, it is important to improve the surface hardness to a level that can replace the glass. In order to improve the hardness of the plastic film, it is necessary to increase the thickness of the coating layer by a certain thickness or more. . However, as the thickness of the coating layer increases, the curl phenomenon due to curing shrinkage also increases, so that the adhesive force decreases and the plastic film curls easily. Thus, the process of planarizing the support substrate may be additionally performed, but it is not preferable because cracking occurs in the coating layer during the planarization process. Therefore, it is not easy to manufacture a plastic film of high hardness to the extent that glass can be replaced without deteriorating film properties. .
- the toughness of the film is improved to improve the toughness of the plastic film Workability can be improved. Accordingly, the physical properties of the plastic film can be further enhanced.
- the 3 to 6 functional acrylate monomer and the thermosetting prepolymer composition (based on the solid component except for the solvent when the thermosetting prepolymer composition is included in a solvent dissolved form) Silver may be included in a weight ratio of about 1: 0.01 to about 1: 3, or about 1: 0.1 to about 1: 2 : or about 1: 0.1 to about 1: 1.5, or about 1: 0.1 to 1: 1.2 have.
- the 3 to 6 functional acrylate monomer and the thermosetting prepolymer composition are included in the above range, it is possible to form a plastic film having good processability while maintaining high hardness.
- the thermosetting prepolymer composition is about 5 to about 50 weight based on 100 parts by weight of the solid content comprising the 3 to 6 functional acrylate monomer, thermosetting prepolymer composition, photoinitiator, and inorganic fine particles Or from about 10 to about 40 parts by weight (based on the solid components except the solvent when the thermosetting prepolymer composition is included in a dissolved form in a solvent).
- the thermosetting prepolymer composition is in the above range, it is possible to form a polar film having good physical properties such as high hardness and high processability.
- the thermosetting prepolymer composition may further include a catalyst to promote thermosetting reaction.
- the catalyst that can be used can be used without limitation any compound known to promote the condensation reaction of the thermosetting prepolymer composition. Specifically, dibutyltindilaurate (DBTDL, dibutyltindilaurate), zinc octoate, iron acetyl acetonate, ⁇ , ⁇ -dimethyl ethanolamine and ethylene At least one member selected from the group consisting of triethylene diamine may be used. These catalysts may be used alone or in combination of two or more different from each other.
- the catalyst may be included in about 0.01 to about 1,000 ppm, or about 0.1 to about 100 ppm with respect to the thermosetting prepolymer composition.
- the catalyst is in the above range, the crosslinked thermal polymerization can be achieved without degrading the physical properties of the composition.
- the said coating composition contains a photoinitiator.
- the photoinitiator is 1-hydroxy-cyclonucleosil-phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2-hydroxy-1- [4- (2-hydroxyethoxy) phenyl] -2-methyl-1-propanone, methylbenzoylformate, ⁇ , ⁇ - Dimethoxy- ⁇ -phenylacetophenone, 2-benzoyl-2- (dimethylamino) -1- [4- (4-morpholinyl) phenyl] -1-butanone, 2-methyl-1- [4- ( Methylthio) phenyl] -2- (4-morpholinyl) -1-propanone diphenyl (2,4,6-trimethylbenzoyl) -phosphine oxide, or bis (2,4,6-trimethylbenzoyl) -Phenylphosphine oxide and the like, but is not limited thereto.
- Irgacure 184 Commercially available products include Irgacure 184, Irgacure 500, Irgacure 651, Irgacure 369, Irgacure 907, Darocur 1173, Darocur MBF, Irgacure 819, Darocur TPO, Irgacure 907, and Esacure KIP 100F.
- These photoinitiators can be used individually or in mixture of 2 or more types different from each other.
- the photoinitiator is about 0.2 to about 5 parts by weight based on 100 parts by weight of solids including the 3 to 6 functional acrylate monomer, the thermosetting prepolymer composition, the photo initiator, and the inorganic fine particles. Or from about 0.5 to about 3 parts by weight.
- the photoinitiator is in the above range, the crosslinked polymerization can be achieved without lowering the physical properties of the plastic film.
- the said coating composition contains an inorganic fine particle.
- inorganic fine particles having a particle size of nanoscale, for example, nanoparticles having a particle diameter of about 100 nm or less, or about 10 to about 100 nm, or about 10 to about 50 nm may be used.
- inorganic fine particles for example, silica fine particles, aluminum oxide particles, titanium oxide particles, or zinc oxide particles can be used.
- the hardness of a full plastic film can be improved further.
- the inorganic fine particles are about 5 to about 40 parts by weight based on 100 parts by weight of solids including the 3 to 6 functional acrylate monomer, the thermosetting prepolymer composition, the photoinitiator, and the inorganic fine particles. Or about 10 to about 40 parts by weight.
- the coating composition may further include an organic solvent for proper fluidity and applicability.
- the organic solvent is an alcoholic solvent such as methanol, ethanol, isopropyl alcohol, butane, 2-methoxyethanol, 2-ethoxyethane, 1-methoxy-2-propane
- Alkoxy alcohol solvents such as, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl propyl ketone, ketone solvents such as cyclonucleanone, propylene glycol monopropyl ether, propylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene
- the content of the organic solvent is not particularly limited because it can be variously adjusted within a range that does not lower the physical properties of the coating composition, the 3 to 6 functional acrylate monomers, thermosetting prepolymer It may be included so that the weight ratio of solid content: organic solvent is in the range of about 70:30 to about 99: 1 based on 100 parts by weight of the solid content including the composition, the photoinitiator and the inorganic fine particles.
- the organic solvent is in the above range, it may have appropriate flowability and applicability.
- the coating composition in addition to the above-mentioned 3 to 6 functional acrylate monomer, thermosetting prepolymer composition, photoinitiator, inorganic fine particles, and organic solvent, surfactant, anti-yellowing agent, It may further include additives commonly used in the art, such as leveling agents, antifouling agents.
- the content can be variously adjusted within a range that does not lower the physical properties of the coating composition, it is not particularly limited, for example, may be included in about 0.1 to about 10 parts by weight based on 100 parts by weight of the coating composition.
- the coating composition may comprise a surfactant as an additive, the surfactant is of 1 to 2 functional It may be a fluorine-based acrylate, a fluorine-based surfactant or a silicone-based surfactant.
- the surfactant may be included in the form of being dispersed or crosslinked in the 3 to 6 functional acrylate monomer.
- the additive may include a yellowing inhibitor
- the yellowing inhibitor may include a benzophenone compound or a benzotriazole compound.
- the viscosity of the coating composition is not particularly limited as long as it has a suitable flowability and applicability, for example, may have a viscosity of about 1,200 cps or less at a temperature of 25 ° C. .
- a coating composition comprising the aforementioned components is applied on at least one side of the support substrate.
- the method of applying the coating composition is not particularly limited as long as it can be used in the technical field to which the present technology belongs, for example bar coating method, knife coating method, coating method, blade coating method, die coating method, micro A gravure coating method, a comma coating method, a slot die coating method, a lip coating method, or a solution casting method may be used.
- the coating composition may have a thickness of about 50 or more, such as about 50 to about 300 // m, or about 50 to about 200 // m, or about 50 to about 150 // ⁇ 1, or about It may be applied to a thickness of 70 to about 150zm.
- the coating composition is applied in the above range, it is possible to produce a plastic film of high hardness without curling or cracking.
- the coating composition comprising the above-mentioned components forms a coating layer by performing photocuring and thermosetting after application to the supporting substrate.
- drying the coating composition After applying the coating composition, optionally drying the coating composition to volatilize the solvent contained in the coating composition and to flatten the coated surface.
- the drying step can be carried out, for example, at a temperature of about 60 to about 9 (C.
- the photocuring is a step for curing the 3 to 6 functional acrylate monomers contained in the coating composition, by irradiating ultraviolet rays.
- the irradiation amount of ultraviolet rays may be, for example, about 20 to about 600 mJ / C m 2 , or about 50 to about 500 mJ / cm 2 . I saw it with a light source of ultraviolet irradiation
- the technology is not particularly limited as long as it can be used in the art, for example, a high pressure mercury lamp, a metal halide lamp, a black light fluorescent lamp and the like can be used.
- the photocuring step may be performed by irradiating for about 30 seconds to 15 minutes or about 1 minute to about 10 minutes with the above irradiation amount.
- the thermosetting is a process for curing the thermosetting prepolymer composition included in the coating composition, and may be optionally performed one or more times before and / or after UV irradiation for photocuring.
- the thermosetting is for about 1 minute to about 1 hour, or about 2 minutes to about 30 minutes, at a temperature of about 60 to about 140 ° C, or about 80 to about 130 ° C, or about 80 to about 120 ° C. By heating. If the thermal curing is performed in a lower silver than the silver range, the thermal curing may not be sufficiently performed to achieve a desired level of mechanical properties, and at high temperatures outside the above temperature range, the supporting substrate, which is weak to overall heat, may be affected. Deterioration of the properties of the overall plastic film may occur.
- the photocuring and thermal curing may be performed by performing thermal curing first and then performing photocuring, or by performing photocuring first and then thermosetting.
- the coating layer may include an interpenetrating polymer network structure (IPN structure).
- IPN structure interpenetrating polymer network structure
- the present invention includes an additional second crosslinked structure implemented by the thermosetting reaction of the thermosetting prepolymer composition, together with the first crosslinked structure by the photocurable reaction of the above-mentioned 3 to 6 functional acrylate-based monomers
- the two or more crosslinked structures may have an IPN structure intertwined with each other.
- the coating layer of the present invention includes an IPN structure, wherein the IPN structure includes a first crosslinked structure derived by photocuring of a 3 to 6 functional acrylate monomer; And a second crosslinked structure derived by thermosetting of the thermosetting prepolymer composition.
- the plastic film obtained by the manufacturing method of the present invention exhibits excellent high hardness, layer resistance, scratch resistance, high transparency, durability, light resistance, high transmittance, and the like, and can be usefully used in various fields.
- the coating layer may be formed only on one surface of the support substrate.
- both of the supporting substrates may be formed.
- the coating composition may be sequentially applied to the front and rear surfaces of the supporting substrate, or simultaneously applied to both sides of the supporting substrate.
- the first and second coating composition is the same as the above-described coating composition, it is to distinguish the composition to be applied only on one side and the back, respectively.
- the photocuring may be compensated for by performing both curing with heat and ultraviolet rays, including the thermosetting prepolymer composition. Accordingly, it is possible to further strengthen the high hardness and physical properties of the coating layer.
- the IPN structure including the first crosslinked structure by the photocuring reaction of the 3 to 6 functional acrylate-based monomer an additional second crosslinked structure implemented by the thermosetting reaction of the thermosetting prepolymer composition, Workability can be satisfied at the same time.
- each corner or one side plane After applying the coating composition to one side of the support substrate and performing photocuring and thermosetting, when the support substrate is cut into 10 cm xlOcm and placed in a plane, each corner or one side plane The maximum value of the distance spaced from 3cm or less, or 2.5cm or less, or 2.0cm or less.
- the plastic film formed by using the coating composition when exposed to a flat surface after 70 hours or more at a temperature of 50 ° C or more and 80% humidity or more, each corner of the plastic film Or the maximum value of the distance away from the one-sided plane may be about 1.0 mm or less, or about 0.6 mm or less, or about 0.3 mm or less.
- the maximum value of the distance of each edge or one side of the plastic film spaced apart from the plane when placed in a plane after exposure to 70 to 100 hours at a temperature of 50 to 90 ° C and a humidity of 80 to 90% About 1.0 mm or less, or about 0.6 mm or less, or about 0.3 mm or less.
- Plastic film formed using the production method of the present invention exhibits excellent high hardness, scratch resistance, high transparency, durability, light resistance, light transmittance and the like can be usefully used in various fields.
- the plastic film formed using the manufacturing method of the present invention the pencil hardness at lkg load may be 6H or more, or 7H or more, or 8H or more.
- the plastic film formed by using the manufacturing method of the present invention may have excellent layer resistance to 3 ⁇ 4 degrees that can replace the glass.
- cracks may not occur when 22 g of iron balls are freely dropped at a height of 40 cm.
- the plastic film formed using the manufacturing method of the present invention may have a light transmittance of 92% or more and a haze of 1.0% or less, or 5% or less, or 0.4% or less.
- the plastic film formed using the manufacturing method of the present invention may have an initial color b * (b * due to CIE 1976 L * a * b * color space) of 1.0 or less.
- the difference between the initial color b * and the color b * after exposure to an ultraviolet lamp in the UVB wavelength region for 72 hours or more may be 0.5 or less, or 0.4 or less.
- Such a plastic film formed by using the manufacturing method of the present invention can be utilized in various fields.
- it can be used for a touch panel of a mobile communication terminal, a smartphone or a tablet PC, and a cover substrate or an element substrate of various displays.
- Mg 1,4-butanediol l. 5 g
- 17 g of polyester poly polyester poly (dispersed in n -butyl acetate, Desmophen 670BA®, Bayer) was added, followed by stirring at room temperature for 30 minutes.
- thermosetting prepolymer composition having a solid content of about 70% including a polyester-based polyurethane oligomer, a polyol, and a polyisocyanate.
- Thermosetting prepolymer composition of Production Example 1 2.0g, the particle diameter of 20 ⁇ 30nm nano silica is 40 parts by weight 0/0 dispersed silica- Dipentaerythritol nucleoacrylate (DPHA) complex 9g (silica 3.6g, DPHA 5.4g), photoinitiator (brand name: Darocur TPO) 0.2g, benzotriazole yellowing inhibitor (brand name: Tinuvin 400) O.lg, fluorine-based 0.05 g of a surfactant (trade name: FC4430) was mixed to prepare a first coating composition. A second coating composition was also prepared in the same manner.
- DPHA dispersed silica- Dipentaerythritol nucleoacrylate
- the first coating composition was applied on a PET support substrate of 15 cm ⁇ 20 cm, thickness 188.
- photocuring was performed by irradiating ultraviolet light with a wavelength of 280 to 350 nm using a black light fluorescent lamp, followed by thermal curing at a temperature of 130 ° C. for 30 minutes to form a first coating.
- the second coating composition was applied to the back side of the supporting substrate.
- photocuring was performed by irradiating ultraviolet rays with a wavelength of 280 to 350 nm using a black light fluorescent lamp, and then a second coating layer was formed by performing thermal curing at a temperature of 130 ° C. for 30 minutes. After curing was completed, the thicknesses of the first and second coating layers formed on both sides of the substrate were 100 kPa, respectively.
- Example 1 a plastic film was prepared in the same manner as in Example 1, except that 3.6 g of the thermosetting prepolymer composition of Preparation Example 1 was used instead of 2.0 g.
- Example 3
- Example 1 the silica composite -DPHA 9g instead particle diameter of 20 ⁇ 30nm nano silica is 40 parts by weight 0/0 dispersed silica-trimethylolpropane triacrylate (TMPTA) complex 9g (silica 3.6g, 5.4g TMPTA) the A plastic film was prepared in the same manner as in Example 1 except that it was used.
- TMPTA dispersed silica-trimethylolpropane triacrylate
- Example 1 instead of 2.0 g of the thermosetting prepolymer composition of Preparation Example 1
- a plastic film was prepared in the same manner as in Example 1 except that 0.7 g was used.
- Example 1 a plastic film was prepared in the same manner as in Example 1, except that 9.0 g of the thermosetting prepolymer composition of Preparation Example 1 was used instead of 2.0 g. Comparative Example 1
- Example 1 a plastic film was prepared in the same manner as in Example 1, except that 10 g of DPHA composite (4 g of silica, DPHA 6 g) was used instead of 9 g of the silica-DPHA composite, and did not include the thermosetting prepolymer composition of Preparation Example 1. It was. Comparative Example 2
- Example 1 a plastic film was prepared in the same manner as in Example 1, except that 25.0 g of the thermosetting prepolymer composition of Preparation Example 1 was used instead of 2.0 g.
- the number of grooves was evaluated after reciprocating 400 times with a load of 0.5kg. 0 0 for 2 or less grooves, ⁇ for 2 or more grooves and less than 5 grooves. X or more cases were evaluated.
- the filmol was cut into 10 cm ⁇ 10 cm and placed in the plane, and the maximum value of the distance of each corner or one side spaced from the plane was measured.
- Each plastic film is wrapped in a cylindrical mantel with a diameter of 3 cm, and it is OK to determine if a crack has occurred. The case was evaluated with X.
- the plastic films of Examples 1 to 5 of the present invention exhibited good properties in all physical properties. In particular, it exhibited excellent curlability and flexibility as well as high hardness.
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- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (4)
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JP2015562928A JP6163568B2 (ja) | 2013-03-15 | 2014-03-13 | プラスチックフィルムの製造方法 |
EP14764723.4A EP2949691B1 (en) | 2013-03-15 | 2014-03-13 | Method for manufacturing plastic film |
US14/776,979 US20160024341A1 (en) | 2013-03-15 | 2014-03-13 | Method for preparing plastic film |
CN201480016172.6A CN105102516B (zh) | 2013-03-15 | 2014-03-13 | 制备塑料膜的方法 |
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KR10-2013-0028143 | 2013-03-15 | ||
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KR1020140029034A KR20140113426A (ko) | 2013-03-15 | 2014-03-12 | 플라스틱 필름의 제조방법 |
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US (1) | US20160024341A1 (ko) |
EP (1) | EP2949691B1 (ko) |
JP (1) | JP6163568B2 (ko) |
KR (2) | KR20140113426A (ko) |
CN (1) | CN105102516B (ko) |
TW (1) | TWI510530B (ko) |
WO (1) | WO2014142582A1 (ko) |
Cited By (2)
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JP2017014479A (ja) * | 2015-07-03 | 2017-01-19 | 住友大阪セメント株式会社 | 無機粒子含有組成物、塗膜、塗膜付きプラスチック基材、および表示装置 |
JP2019512034A (ja) * | 2016-03-02 | 2019-05-09 | アルケマ フランス | 二重硬化ソフトタッチコーティング |
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KR101828516B1 (ko) | 2014-09-18 | 2018-02-12 | 주식회사 엘지화학 | 플라스틱 필름 및 이의 제조 방법 |
JP2018053098A (ja) * | 2016-09-29 | 2018-04-05 | 住友大阪セメント株式会社 | 無機粒子含有組成物、塗膜、塗膜付きプラスチック基材、および表示装置 |
CN110536798A (zh) * | 2017-04-18 | 2019-12-03 | 韩国铸造、安全印刷与Id卡操作公司 | 光子晶体膜及其制造方法、包含该光子晶体膜的防伪产品 |
JP7066993B2 (ja) | 2017-08-07 | 2022-05-16 | 凸版印刷株式会社 | 積層体および化粧シート |
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JP2017014479A (ja) * | 2015-07-03 | 2017-01-19 | 住友大阪セメント株式会社 | 無機粒子含有組成物、塗膜、塗膜付きプラスチック基材、および表示装置 |
JP2019512034A (ja) * | 2016-03-02 | 2019-05-09 | アルケマ フランス | 二重硬化ソフトタッチコーティング |
JP7159051B2 (ja) | 2016-03-02 | 2022-10-24 | アルケマ フランス | 二重硬化ソフトタッチコーティング |
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CN105102516B (zh) | 2018-06-08 |
JP6163568B2 (ja) | 2017-07-12 |
EP2949691A4 (en) | 2016-11-02 |
CN105102516A (zh) | 2015-11-25 |
EP2949691A1 (en) | 2015-12-02 |
TW201504294A (zh) | 2015-02-01 |
JP2016516847A (ja) | 2016-06-09 |
KR20150040260A (ko) | 2015-04-14 |
TWI510530B (zh) | 2015-12-01 |
KR20140113426A (ko) | 2014-09-24 |
US20160024341A1 (en) | 2016-01-28 |
EP2949691B1 (en) | 2021-12-15 |
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