WO2014133319A1 - 코팅 조성물 및 이로부터 제조되는 플라스틱 필름 - Google Patents
코팅 조성물 및 이로부터 제조되는 플라스틱 필름 Download PDFInfo
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- WO2014133319A1 WO2014133319A1 PCT/KR2014/001579 KR2014001579W WO2014133319A1 WO 2014133319 A1 WO2014133319 A1 WO 2014133319A1 KR 2014001579 W KR2014001579 W KR 2014001579W WO 2014133319 A1 WO2014133319 A1 WO 2014133319A1
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- coating composition
- plastic film
- copolymer
- block copolymer
- fine particles
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
- C09D183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F287/00—Macromolecular compounds obtained by polymerising monomers on to block polymers
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- C—CHEMISTRY; METALLURGY
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- 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
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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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
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- C—CHEMISTRY; METALLURGY
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- 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
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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
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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
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- C—CHEMISTRY; METALLURGY
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- C09D183/10—Block or graft copolymers containing polysiloxane sequences
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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
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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
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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
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Definitions
- the present invention relates to coating compositions and plastic films made therefrom. More specifically, it relates to a coating composition for producing a plastic film exhibiting high hardness, impact resistance and excellent properties and a plastic film produced therefrom.
- This application is filed with the Korean Patent Application No. 10-2013-0020650 filed with the Korean Patent Office on February 26, 2013, the Korean Patent Application No. 10-2013-0020652 filed with the Korean Patent Office on February 26, 2013, and Claims the benefit of the filing date of Korean Patent Application No. 10-2014-0022023 filed with the Korea Intellectual Property Office on February 25, 2014, the entire contents of which are incorporated herein.
- 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 increase in weight due to its weight and there is a problem of breakage due to external impact.
- 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 coating layer on a supporting substrate in order to achieve a film having properties of high hardness and wear resistance.
- a method of increasing the thickness of the coating layer may be considered.
- the surface hardness can be increased, but it is not easy to apply it practically because it becomes easy to cause cracks or peeling of the coating layer at the same time as wrinkles and curls increase due to the curing shrinkage of the coating layer. not.
- Korean Patent Publication No. 2010-0041992 discloses a plastic film composition excluding a monomer and using a binder resin including an ultraviolet curable polyurethane acrylate 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 exhibits a high hardness enough to replace the glass panel, but can prevent the occurrence of curl or cracks in the plastic film, high hardness, impact resistance, toughness (toughness) It provides a coating composition and a plastic film produced therefrom which can produce a plastic film exhibiting excellent physical properties.
- a coating composition comprising a binder, an amphipathic block copolymer, inorganic particulates, a photoinitiator, and an organic solvent is provided.
- a coating layer is formed on at least one surface of the support substrate, wherein the coating layer provides a plastic film including a photocurable crosslinked copolymer, inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphipathic block copolymer. .
- the plastics exhibiting excellent scratch resistance and high transparency while being significantly superior in hardness and impact resistance as compared to conventional resin-based plastic films for replacing glass panels. Films can be produced.
- plastic film of the present invention exhibits excellent processability, and can be usefully applied to mobile devices, display devices, front panels of various instrument panels, display units, and the like.
- the coating composition of the present invention comprises a binder, an amphipathic block copolymer, inorganic fine particles, a photoinitiator, and an organic solvent.
- the plastic film of this invention is a support base material; And a coating layer formed on at least one surface of the support substrate, wherein the coating layer includes a photocurable crosslinked copolymer, inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphipathic block copolymer.
- first and second are used to describe various components, which terms are used only for the purpose of distinguishing one component from other components.
- the coating composition of this invention contains a binder, an amphipathic block copolymer, an inorganic fine particle, a photoinitiator, and an organic solvent.
- the binder means a monomer, oligomer or polymer which can be polymerized with ultraviolet light to form a polymer or a copolymer.
- the binder may include an acrylate monomer. More specifically, the binder may include a 3 to 6 functional acrylate monomer.
- the acrylate-based means not only acrylate but also methacrylate or a derivative in which a substituent is introduced into acrylate or methacrylate.
- the 3 to 6 functional acrylate monomers are for example trimethylolpropane triacrylate (TMPTA), trimethylolpropane specific triacrylate (TMPEOTA), glycerin propoxylated triacrylate (GPTA) pentaerythritol tetraacrylate (PETA), or dipentaerythr to nuxaacrylate (DPHA) and the like, but are not limited thereto.
- TMPTA trimethylolpropane triacrylate
- TMPEOTA trimethylolpropane specific triacrylate
- GPTA glycerin propoxylated triacrylate
- PETA pentaerythritol 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 monomers may be cross-polymerized with each other by the ultraviolet irradiation with the acrylate monomers or other binder components to form a photocurable crosslinked copolymer, and the photocurable crosslinked copolymer It can be given a high hardness to the coating layer formed to include.
- the binder may be included in an amount of about 45 to about 85 parts by weight, or about 50 to about 80 parts by weight, based on 100 parts by weight of the solids contained in the coating composition.
- the binder is in the above range, it is possible to form a plastic film having good physical properties such as high hardness, impact resistance and scratch resistance.
- the coating composition according to the invention comprises an amphipathic block copolymer.
- Amphipathic block copolymer herein (amphipathic block)
- the copolymer refers to a copolymer including both a miscible block and an immiscible block in one molecule with respect to the binder included in the coating composition.
- the amphipathic block copolymer is a block that is compatible with the 3 to 6 functional acrylate monomer and the 3 to 6 monomers. Include both functional acrylate monomers and non-combustible blocks in one molecule.
- the amphiphilic block copolymer may include a block of viable and non-flammable based on the binder occupying an excess of the total binder component. .
- the vibrating block when the coating composition includes a 3 to 6 functional acrylate monomer as a binder, the vibrating block has a high affinity for the 3 to 6 functional acrylate monomer. Or repeating units exhibiting compatibility.
- the said compatible block is, for example, polyethylene jade! 0 oxide (polyethylene oxide, PEO), polypropylene oxide,
- PPO polymethyl acrylate
- PMA polymethyl methacrylate
- PCL polycaprolactone
- PS polystyrene
- PAA polyacrylic acid acid
- the affinity or compatibility may be determined by measuring a solubility parameter of the binder, which is a reference, and distinguished into a miscible block and an incompatible block by their relative relationship.
- the non-flammable block includes repeating units exhibiting low affinity or compatibility with respect to the 3 to 6 functional acrylate monomer when the coating composition comprises 3 to 6 functional acrylate monomer as a binder.
- the non-combustible blocks are for example polypropylene oxide (PPO), polybutylene oxide (PBO), polyhexilene oxide (polyhexilene oxide, PHO), polybutadiene (polybutadiene, PB) ), Polydimethyl siloxane (polydimethyl siloxane, PDMS), polybutyl acrylate (polybutyl acrylate, PBA) or polyalkyl (meth) acrylate (PAMA) having an alkyl group having 2 to 10 carbon atoms may be included at least one or more, but the present invention is not limited thereto.
- the ratio of the miscible nonspecific to non-miscible blocks is not particularly limited, and for example, the composition ratio of each miscible and non-miscible block is about 5 based on the volume fraction of each block. : 95 to about 95: 5, or about 3: 7 to about 7: 3 or about 4: 6 to about 6: 4.
- the amphiphilic block copolymer is a linear multiblock (eg, diblock copolymer, triblock copolymer, tetrablock copolymer, etc.) ) Copolymers, branched multiblock, or three-dimensional ⁇ multiblock structures, and are not particularly limited.
- the amphiphilic block copolymer when it is a diblock co-polymer, it may have repeating units of the form —Ml— or —IM- where the miscible blocks (M) and the unmiscible blocks (I) are alternately located. have.
- the amphiphilic block copolymer is a triblock copolymer
- the -MIM-form or —IMI-form in which the miscible block (M), the incompatible block (I), and the miscible block (M) are alternately located It may have a repeating unit.
- the number average molecular weight of the amphiphilic block copolymer may be about 1,000 to about 100,000 gmol, or about 2,000 to about 50,000 g / m.
- the amphipathic block copolymer has a self assembly characteristic by including both the miscible and non-combustible blots with respect to the binder included in the coating composition. Accordingly, in the process of mixing the amphipathic block copolymer with other components in the coating composition, the block is compatible with the binder according to the difference in affinity of each block with respect to the binder included in the coating composition. And non-combustible blocks may be oriented in the opposite direction, ie inward, to have a spherical or mimic shape.
- the micelles may have a particle diameter of about 100 nm or less, for example, about 5 to about 100 nm. If the particle size of the micelle exceeds lOOnm, the coating layer is optically It is preferable that the particle size is 100 nm or less because the transmittance may be reduced due to the influence.
- the coating composition of the present invention may increase toughness and layer resistance of the coating layer without deteriorating mechanical properties by including an amphiphilic block copolymer.
- the amphiphilic block copolymer may be present in the form of micelles, wherein the micelles are self-assembled so that the block that is common to the binder contained in the coating composition is directed outwards such that the amphiphilic block copolymer is obtained from the outside. It effectively absorbs the impacts. Therefore, the coating layer including the amphipathic block copolymer can enhance impact resistance and compatibility without deterioration of mechanical properties such as pencil hardness.
- the amphiphilic block co-polymer may be included in about 0.1 to about 30 parts by weight, or about 0.5 to about 20 parts by weight based on 100 parts by weight of the solids contained in the coating composition.
- the coating composition of the present invention contains inorganic fine particles.
- inorganic fine particles having a particle size of nanoscale, for example, nanoparticles having a particle diameter of about lOOnm or less, or about 10 to about lOOnm, or about 10 to about 50nm may be used.
- the inorganic fine particles for example, silica fine particles, aluminum oxide particles, titanium oxide particles, zinc oxide particles, or the like can be used.
- the inorganic fine particles may be included in a form dispersed in a binder such as the 3 to 6 functional acrylate monomer.
- the hardness of the plastic film can be further improved.
- the inorganic fine particles may be included in about 10 to about 40 parts by weight, or about 10 to about 30 parts by weight based on 100 parts by weight of solids contained in the coating composition.
- the inorganic fine particles By including it in the range, the plastic film of the outstanding physical property can be formed.
- the coating composition of the present invention comprises a photoinitiator. '
- the photoinitiator is 1-hydroxy-cyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2-hydroxy-1- [4- (2-hydroxyhydroxy) phenyl] -2-methyl-1-propanone, methylbenzoylformate, ⁇ , ⁇ -dimethoxy- ⁇ -phenylacetophenone, 2-banjoyl-2- (dimethyl Amino) -1- [4- (4-morpholinyl) phenyl] -1-butanone, 2-methyl-1- [4- (methylthio) phenyl] -2- (4-morpholinyl-propane And diphenyl (2,4,6-trimethylbenzoyl) -phosphine oxide, or bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide, and the like, but are not limited thereto.
- the products are Irgacure 184, Irgacure 500, Irgacure 651, Irgacure 369, Irgacure 907, Darocur 1173, Darocur MBF, Irgacure 819, Darocur TPO, Irgacure 907, Esacure KIP 100F, etc.
- photoinitiators alone Or two or more different It can be used in combination.
- the photoinitiator may be included in about 0.5 to about 10 parts by weight, or about 1 to about 5 parts by weight, based on 100 parts by weight of solids contained in the coating composition.
- the photoinitiator is in the above range, sufficient crosslinking photopolymerization can be achieved without lowering the physical properties of the plastic film.
- the coating composition comprises an organic solvent for proper fluidity and applicability.
- the organic solvent may include a weight ratio of solids to organic solvents included in the coating composition in a range of about 70:30 to about 99: 1.
- the organic solvent is methane, an alcoholic solvent such as ethanol, isopropyl alcohol, butanol, 2-methoxyethanol, 2-ethoxyethanol, 1-methoxy-2-propanol and Alkoxyalcohol 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 glycol mono Propyl ether, ethylene glycol monobutyl ether, Ether solvents such as diethylene glycol monomethyl ether, diethyl glycol monoethyl ether, diethyl glycol monopropyl ether, diethyl glycol monobutyl ether, diethylene glycol -2-ethyl nucleosil ether, benzene,
- an alcoholic solvent such as
- the viscosity of the coating composition is not particularly limited as long as it has a range of suitable fluidity and applicability, for example, at a temperature of 25 ° C about 100 to about 1,200 cps, or about 150 to It may have a viscosity of about 1,200 cps, or about 300 to about 1,200 cps.
- the coating composition of the present invention is generally used in the technical field to which the present invention belongs, such as surfactants, anti-yellowing agents, leveling agents, antifouling agents, etc., in addition to the above-described binder, amphiphilic block copolymer, inorganic fine particles, photoinitiator and organic solvent. It may further include an additive.
- the content can be variously adjusted within a range that does not lower the physical properties of the present invention, it is not particularly limited, for example, based on 100 parts by weight of the solid content contained in the coating composition, about 0.1 to about 10 weight It can be included as a wealth.
- the coating composition may include a surfactant as an additive, and the surfactant may be a 1 to 2 functional fluorine acrylate, a fluorine surfactant or a silicone surfactant.
- the surfactant may be included in the form of being dispersed or crosslinked in the crosslinked copolymer.
- the additive may include a yellowing inhibitor
- the yellowing inhibitor may include a benzophenone compound or a benzotriazole compound.
- the coating composition of the present invention comprising the above-described components can form a coating by photocuring after application on a supporting substrate.
- the support substrate And a coating layer formed on at least one surface of the support substrate, wherein the coating layer provides a plastic film including a photocurable crosslinked copolymer, inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphipathic block copolymer. do.
- the support substrate on which the coating layer is formed is commonly used transparency If it is a plastic resin, it can use without a restriction
- the support substrate may include, for example, polyester such as polyethylene terephthalate (PET), polyethylene such as ethylene vinyl acetate (EVA) polyethylene), cyclic olefin polymer (COP), cyclic olefin copolymer (CCO), polyacrylate (PAY), polycarbonate (PC), polyethylene (polyethylene) , PE), polymethylmethacrylate (PMMA), polyetheretherketon (PEEK), polyethylenenaphthalate (PEN), polyetherimide (PEI), polyimide (PI) And a film containing triacetylcellulose (TAC), methyl methacrylate (MMA), or a fluorine resin.
- the support substrate may be a single layer or a
- the supporting substrate is a multilayer structure of polyethylene terephthalate (PET), two or more layers formed by co-extrusion of polymethyl methacrylate (PMMA) / polycarbonate (PC). It can be a phosphorus base material.
- 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 support substrate is not particularly limited, but a support substrate having a thickness of about 30 to about 1,200 ⁇ , or about 50 to about 800 can be used.
- the plastic film of the present invention includes a coating layer formed on at least one surface of the support substrate, wherein the coating layer is a photocurable crosslinked copolymer, inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphipathic block copolymer It includes.
- the ratio of the thickness of the support substrate and the coating layer may be about 1: 0.5 to about 1: 2, or about 1: 0.5 to about 1: 1.5.
- a coating composition comprising a binder, an amphiphilic block copolymer, inorganic fine particles, a photoinitiator, and an organic solvent is applied onto at least one side of the supporting substrate and then photocured to form a coating layer.
- the coating composition includes a binder, an amphipathic block copolymer, an inorganic fine particle, a photoinitiator, and an organic solvent, and the coating layer is formed by photocuring the coating composition, a photocurable crosslinking copolymer, and the photocurable crosslinking.
- Inorganic fine particles dispersed in the copolymer, and an amphipathic block co-polymer is as described above.
- 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 layer may have a thickness of about 50 or more, for example, about 50 to about 300, or about 50 to about 200 ⁇ , or about 50 to about 150 ⁇ , or about 70 to about 150 after fully cured. According to the present invention, it is possible to provide a plastic film of high hardness, including the coating layer having a high thickness as described above without curling or cracking.
- the plastic film of the present invention is a plastic resin film, adhesive film, release film, conductive film, conductive layer, coating layer, cured resin layer, non-conductive film, metal mesh layer or
- One or more layers, films, or films, such as a patterned metal layer may be further included.
- the layer, film, film or the like may be in any form of a single layer, a double layer or a laminate.
- the layer, film, or film may be a freestanding film using an adhesive or an adhesive film. Lamination, or may be laminated on the coating layer by coating, deposition, sputtering, etc., but the present invention is not limited thereto.
- the coating layer may be formed only on one surface of the support substrate.
- the coating layer may be formed on both sides of the support substrate.
- the coating composition may be sequentially applied to the front and rear surfaces of the support substrate, or simultaneously applied to both sides of the support substrate.
- first coating and first photocuring the first coating composition on one side of the support substrate, and then the second coating composition on the other side of the support substrate, namely the back side, and It can form by the 2 step process of photocuring.
- 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 method of applying the first and second 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 gravure coating method, comma coating method, slot die coating method, lip coating method, or solution casting (solution casting) method can be used.
- the irradiation amount of the ultraviolet ray in the first and second photocuring step may be, for example, about 20 to about 600 mJ / cm 2 , or about 50 to about 500 mJ / cm 2 .
- the light source for ultraviolet irradiation is not particularly limited as long as it can be used in the art to which the present technology belongs, and for example, a high pressure mercury lamp, a metal halide lamp, a black light fluorescent lamp, or the like can be used. Irradiation for about 30 seconds to about 15 minutes, or about 1 minute to about 10 minutes with the above irradiation amount may be carried out photocuring.
- the thickness of the first and second coating layers may be about 50 to about 300 m or about 50 to about 200 / zm, or about 50 to about 150, or about 70 to about 150 after fully cured.
- the curl may be caused by curing shrinkage in the first photocuring step in the opposite direction to obtain a flat plastic film. Therefore, no additional planarization process is necessary.
- the first photocuring step in the first photocuring step after the first coating of the first coating composition on the surface of the support substrate, is included in the first coating composition . It may be performed until some of the binder is crosslinked.
- partially crosslinked it is meant that only some of the binder is crosslinked to greater than 0% and less than 100% when the binder is 100% fully crosslinked.
- the shop 1 photocuring step is the first 30 of the photo-curable functional group contained in the binder of the coating composition to about 60 mole 0/0, preferably about 40 to about 50 It can be carried out until the crosslinking mol 0/0.
- the binder instead of completely curing the binder, it is possible to reduce the curing shrinkage of the first coating composition by curing only a part of the binder. Therefore, it is possible to manufacture a plastic film exhibiting high hardness and exhibiting excellent physical and optical properties without curling or cracking.
- the remaining uncured binder in the first coating composition may be further cured in the second photocuring step.
- the plastic film includes a first coating layer formed on one side of the support substrate and a second coating layer formed on the back side, wherein the first coating layer is a photocurable crosslinked copolymer, the Including the inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphiphilic block co-polymer, the second coating layer may include a photocurable crosslinked copolymer and an amphipathic block copolymer.
- the components of the first and second coating layers are different, and the first coating layer exhibits high hardness, including a photocurable crosslinked copolymer, inorganic fine particles dispersed in the photocurable crosslinked copolymer, and an amphipathic block copolymer.
- a photocurable crosslinked copolymer By including only the photocurable crosslinked copolymer and the amphipathic block copolymer in the second coating layer, impact resistance and processability can be more complemented.
- the plastic film to be used as a cover of a mobile communication terminal or a tablet PC it is important to improve the hardness and the layer resistance of the plastic film to a level capable of replacing glass. Even if the coating layer according to the present invention is formed to a high thickness on the substrate, there is little curl or cracks, and a plastic film having high transparency and layer resistance can be obtained.
- the plastic film according to the present invention exhibits layer resistance, high hardness, scratch resistance, high transparency, durability, light resistance, light transmittance, and the like.
- each corner or one side of the plastic film when the plastic film is exposed to a plane after exposure to a temperature of more than 50 ° C and humidity of 80% or more 70 hours or more, each corner or one side of the plastic film is spaced apart from the plane
- the maximum value of the distance can be up to about 1.0 mm, or up to about 0.6 mm, or up to about 0.3 mm. More specifically, each corner or one side of the plastic film, when placed on a flat surface after exposure for 70 to 100 hours at a silver content of 50 to 90 ° C and a humidity of 80 to 90% . In the plane . Spaced apart .
- the maximum value of the distance may be about 1.0 mm or less, or about 0.6 mm or less, or about 0.3 mm or less.
- Plastic film of the present invention exhibits excellent high hardness, scratch resistance, impact resistance, high transparency, durability, light resistance, light transmittance and the like can be usefully used in various fields.
- the plastic film of the present invention may exhibit high hardness even when the plastic film including only the glass panel and the ultraviolet curable copolymer has excellent impact resistance.
- cracks may not occur when 22 g of iron balls are repeatedly dropped freely at a height of 50 cm 10 times.
- the pencil hardness at 1kg load may be 7H or more, or 8H or more, or 9H or more.
- the plastic film 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 of the present invention may have an initial color b value of 1.0 or less.
- a difference between the initial color b value and the color b value after 72 hours or more exposure to an ultraviolet lamp in the UVB wavelength region may be 0.5 or less, or 0.4 or less.
- Such a plastic film of the present invention can be utilized in various fields.
- 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.
- 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.
- PEO-PDMS-PEO block copolymers were prepared. At this time, the volume ratio of PEO: PDMS: PEO was 1: 2: 1, and the number average molecular weight was about 4,000 g / mol. In addition, the average particle diameter of the micelle structure formed by self-assembly of the PEO-PDMS-PEO block copolymer was about 8 nm.
- Preparation Example 2 PDMS-PMMA (polydimethyl siloxane-polvmethvl methacrylate) block copolymer
- Polydimethyl siloxane and p ⁇ ymethyl methacrylate were prepared by atomic transfer radical polymerization (ATRP) reaction to prepare PDMS-PMMA block copolymer.
- ATRP atomic transfer radical polymerization
- the volume ratio of PMMA: PDMS was 1: 1 and the number average molecular weight was about 23,000 g / mol.
- the average particle diameter of the micelle structure formed by self-assembly of the PDMS-PMMA block copolymer was about 18 nm.
- Preparation Example 3 PMMA-PB-PS (polymethvl methacrylate-polybutadiene- polystyrene) block copolymer
- PMMA-PB-PS block copolymer Polymethyl methacrylate, polybutadiene, and polystyrene were prepared by atomic transfer radical copolymerization reaction to prepare PMMA-PB-PS block copolymer.
- the volume ratio of PMMA: PB: PS was 32:34:34, and the number average molecular weight was about 50,000 g / mol.
- the average particle diameter of the micelle structure formed by self-assembly of the PMMA-PB-PS block copolymer was about 25 nm.
- PEO-PPO-PEO Polyethylene Oxide-Polypropylene Oxide-Polyethylene Oxide
- PEO-PPO-PEO block by preparing polyethylene oxide, and polypropylene oxide by atomic transfer radical copolymerization reaction. Copolymers were prepared. At this time, the volume ratio of PEO: PPO: PEO was 1: 2: 1 and the number average molecular weight was about 30,000 g / mol. The average particle diameter of the micelle structure formed by self-assembly of the PEO-PPO-PEO block copolymer was about 15 nm. .
- Preparation Example 5 PMMA-PBA (polymethyl methacrylate-polybutyl acrylate) block copolymer
- the PMMA-PBA block copolymer was prepared by polymerization by reversible addition fragment chain transfer polymerization. At this time, the volume ratio of PMMA: PBA was 1: 1 and the number average: molecular weight was about 29,000 g / mol. The average particle diameter of the micelle structure formed by self-assembly of the PMMA-PBA block copolymer was about 15 nm.
- Preparation Example 6 PDMS-PMMA fpolydimethyl siloxane-polymethyl methacrylate) Block Copolymer
- Polydimethyl siloxane and polymethyl methacrylate were prepared by atomic transfer radical copolymerization to prepare a PDMS-PMMA block copolymer.
- the volume ratio of PMMA: PDMS was 1: 1 and the number average molecular weight was about 30,000 g / mol.
- the average particle diameter of the micelle structure formed by self-assembly of the PDMS-PMMA block copolymer was about 23 nm.
- Particle size of 20 ⁇ 30nm nano silica is about 20 wt 0/0
- the dispersion Little pentaerythritol tetraacrylate (PETA) 'complex 8g (silica 1.6g, PETA 6.4g), PEO- PDMS-PEO block of Preparation 1
- Aerial 2 g of copolymer (trade name: Irgacure 819)
- O.lg banjotriazole yellowing inhibitor
- O.lg fluorine-based surfactant (trade name: F477)
- a coating composition was prepared.
- TMPTA trimethyl propane triacrylate
- PDMS-PEO block copolymer 3g photoinitiator (brand name: Irgacure 819) O.lg, benzotriazole-based yellowing inhibitor (brand name: Tinuvin 400) O.lg, fluorine-based surfactant (brand name: F477) 0.05g, methyl ethyl ketone 2g Were mixed to prepare a second coating composition.
- photoinitiator brand name: Irgacure 819
- benzotriazole-based yellowing inhibitor brand name: Tinuvin 400
- F477 fluorine-based surfactant
- the first coating composition was applied on a PET support substrate of 15 cm ⁇ 20 cm, thickness' 188. Next, ultraviolet rays having a wavelength of 290 to 320 nm were irradiated to perform first photocuring on the first coating composition.
- the second coating composition was applied to the back side of the supporting substrate.
- a second photocuring was performed by irradiating ultraviolet rays with a wavelength of 290 to 320 nm to prepare a plastic film.
- the thicknesses of the coating layers formed on both sides of the substrate were 80 ⁇ , respectively.
- Example 2 2 g of PDMS-PMMA block copolymer of Preparation Example 2 was used instead of PEO-PDMS-PEO block copolymer in the C1 coating composition of Example 1, and Preparation Example 2 instead of PEO-PDMS-PEO block copolymer of the second coating composition.
- a plastic film was prepared in the same manner as in Example 1, except that 3 g of PDMS-PMMA block copolymer was used.
- Example 3 2 g of PMMA-PB-PS block copolymer of Preparation Example 3 was used instead of PEO-PDMS-PEO block copolymer in the first coating composition of Example 1, and prepared in place of PEO-PDMS-PEO block co-polymer in the crab 2 coating composition.
- a plastic film was prepared in the same manner as in Example 1, except that 3 g of the PMMA-PB-PS block copolymer of Example 3 was used.
- Example 5 2g of the PEO-PPO-PEO block copolymer of Preparation Example 4 was used instead of the PEO-PDMS-PEO block copolymer in the first coating composition of Example 1, and prepared in place of the PEO-PDMS-PEO block copolymer in the second coating composition.
- a plastic film was prepared in the same manner as in Example 1, except that 3 g of the PEO-PPO-PEO block copolymer of Example 4 was used.
- Example 5 2g of the PEO-PPO-PEO block copolymer of Preparation Example 4 was used instead of the PEO-PDMS-PEO block copolymer in the first coating composition of Example 1, and prepared in place of the PEO-PDMS-PEO block copolymer in the second coating composition.
- a plastic film was prepared in the same manner as in Example 1, except that 3 g of the PEO-PPO-PEO block copolymer of Example 4 was used.
- TMPTA trimethyl-propane triacrylate
- silica 6.4 g of silica
- PEO-PDMS-PEO block air of Preparation Example 1 2 g of copolymer, photoinitiated crab (trade name: Irgacure 819) O.lg, benzotriazole anti-yellowing crab (trade name: Tinuvin 400) O.lg, fluorine-based surfactant (trade name: FC4430) 0.05 g, methyl ethyl ketone 2 g
- FC4430 fluorine-based surfactant
- the coating composition was applied by bar coating on both sides of a PET support substrate having a thickness of 15 cm X 20 cm, 188.
- the support substrate is coated on both sides of the coating composition, and a metal halide lamp having a wavelength of 290 to 320 nm is placed on the support substrate.
- a plastic film was produced by performing photocuring by passing under a nitrogen atmosphere between ultraviolet irradiation devices installed below.
- the thicknesses of the coatings formed on both sides of the substrate are the thicknesses of the coatings formed on both sides of the substrate.
- a plastic film was prepared in the same manner as in Example 6, except that 2 g of the PDMS-PMMA block copolymer of Preparation Example 2 was used instead of the PEO-PDMS-PEO block copolymer in the coating composition of Example 6.
- Example 8
- a plastic film was prepared in the same manner as in Example 6, except that 2g of PMMA-PB-PS block copolymer of Preparation Example 3 was used instead of the PEO-PDMS-PEO block copolymer in the coating composition of Example 6.
- Example 9
- a plastic film was prepared in the same manner as in Example 6, except that 2 g of the PEO-PPO-PEO block copolymer of Preparation Example 4 was used instead of the PEO-PDMS-PEO block copolymer in the coating composition of Example 6.
- Example 10
- a plastic film was prepared in the same manner as in Example 6, except that 2 g of the PDMS-PMMA block copolymer of Preparation Example 6 was used instead of the PEO-PDMS-PEO block copolymer in the coating composition of Example 6. Comparative Example 1
- PETA complex 10g (2g silica, PETA 8) the particle size of 20 ⁇ 30nm nano silica is about 20 wt 0/0 distribution, photoinitiator (trade name: Irgacure 819) O.lg, benzotriazole-yellowing agent (trade name: Tinuvin 400 ) O.lg, 0.05 g of a fluorine-based surfactant (trade name: FC4430) were mixed to prepare a coating composition. The subsequent process was the same as in Example 6 to prepare a plastic film.
- Experimental Example 10g 2g silica, PETA 8) the particle size of 20 ⁇ 30nm nano silica is about 20 wt 0/0 distribution
- photoinitiator trade name: Irgacure 819
- benzotriazole-yellowing agent trade name: Tinuvin 400
- FC4430 fluorine-based surfactant
- the number of scratches was evaluated after reciprocating 400 times with a load of 0.5 kg. It was evaluated as 0 when there are two or less home houses, ⁇ when more than two home houses and less than five home houses, and X when there are five or more home houses.
- Each plastic film was cut into 10 cm ⁇ 10 cm, stored in a chamber at a temperature of 85 ° C. and a humidity of 85% for 72 hours, and the maximum value of the distance at which one side of each corner was spaced from the plane when placed on a plane was measured.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Polymerisation Methods In General (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
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Priority Applications (5)
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CN201480010376.9A CN105073916B (zh) | 2013-02-26 | 2014-02-26 | 涂料组合物及由其制备的塑料膜 |
EP14756302.7A EP2940088B1 (en) | 2013-02-26 | 2014-02-26 | Coating composition, and plastic film prepared therefrom |
JP2015555932A JP6080327B2 (ja) | 2013-02-26 | 2014-02-26 | コーティング組成物およびこれから製造されるプラスチックフィルム |
US14/770,004 US20160002499A1 (en) | 2013-02-26 | 2014-02-26 | Coating composition and plastic film prepared therefrom |
US15/989,651 US20180273799A1 (en) | 2013-02-26 | 2018-05-25 | Coating composition and plastic film prepared therefrom |
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KR20130020650 | 2013-02-26 | ||
KR10-2013-0020652 | 2013-02-26 | ||
KR20130020652 | 2013-02-26 | ||
KR10-2013-0020650 | 2013-02-26 | ||
KR10-2014-0022023 | 2014-02-25 | ||
KR1020140022023A KR101617387B1 (ko) | 2013-02-26 | 2014-02-25 | 코팅 조성물 및 이로부터 제조되는 플라스틱 필름 |
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US14/770,004 A-371-Of-International US20160002499A1 (en) | 2013-02-26 | 2014-02-26 | Coating composition and plastic film prepared therefrom |
US15/989,651 Division US20180273799A1 (en) | 2013-02-26 | 2018-05-25 | Coating composition and plastic film prepared therefrom |
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WO2014133319A1 true WO2014133319A1 (ko) | 2014-09-04 |
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US (2) | US20160002499A1 (ko) |
EP (1) | EP2940088B1 (ko) |
JP (1) | JP6080327B2 (ko) |
KR (1) | KR101617387B1 (ko) |
CN (1) | CN105073916B (ko) |
TW (1) | TWI572647B (ko) |
WO (1) | WO2014133319A1 (ko) |
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WO2016068658A1 (ko) * | 2014-10-31 | 2016-05-06 | 주식회사 엘지화학 | 플라스틱 필름 적층체 |
KR101791232B1 (ko) * | 2014-10-31 | 2017-10-27 | 주식회사 엘지화학 | 플라스틱 필름 적층체 |
KR101657832B1 (ko) * | 2014-12-24 | 2016-09-20 | 주식회사 포스코 | 블록공중합체를 이용한 코팅 강판 및 그 제조 방법 |
JP6236156B2 (ja) * | 2015-06-01 | 2017-11-22 | 株式会社ノリタケカンパニーリミテド | 導電性組成物と電極形成方法 |
KR102022687B1 (ko) * | 2015-09-25 | 2019-11-04 | 주식회사 엘지화학 | 코팅 조성물 및 이로부터 제조되는 플라스틱 필름 |
JP6825363B2 (ja) * | 2016-12-28 | 2021-02-03 | 三菱ケミカル株式会社 | 樹脂積層体及びその製造方法並びにディスプレー前面板及び移動体用グレージング |
KR102254445B1 (ko) * | 2017-03-03 | 2021-05-24 | 후지필름 가부시키가이샤 | 광학 필름과 이를 갖는 화상 표시 장치의 전면판, 화상 표시 장치, 화상 표시 기능 포함 미러, 저항막식 터치 패널 및 정전 용량식 터치 패널 |
CN110506090B (zh) * | 2017-04-13 | 2022-05-31 | 王子控股株式会社 | 装饰成型用粘合片 |
ES2962722T3 (es) * | 2018-08-08 | 2024-03-20 | Mitsubishi Gas Chemical Co | Composición de recubrimiento duro, película laminada y película curable |
CN109401599A (zh) * | 2018-09-12 | 2019-03-01 | 安徽康瑞高科新材料技术工程有限公司 | 一种适用于bmc的uv涂料及其制备方法 |
JP2020122112A (ja) * | 2019-01-31 | 2020-08-13 | 株式会社クラレ | インキ用又は塗料用バインダー及びその用途 |
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- 2014-02-26 EP EP14756302.7A patent/EP2940088B1/en active Active
- 2014-02-26 TW TW103106469A patent/TWI572647B/zh active
- 2014-02-26 CN CN201480010376.9A patent/CN105073916B/zh active Active
- 2014-02-26 WO PCT/KR2014/001579 patent/WO2014133319A1/ko active Application Filing
- 2014-02-26 JP JP2015555932A patent/JP6080327B2/ja active Active
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Also Published As
Publication number | Publication date |
---|---|
KR101617387B1 (ko) | 2016-05-02 |
JP6080327B2 (ja) | 2017-02-15 |
CN105073916B (zh) | 2017-02-22 |
TW201502177A (zh) | 2015-01-16 |
JP2016511779A (ja) | 2016-04-21 |
CN105073916A (zh) | 2015-11-18 |
TWI572647B (zh) | 2017-03-01 |
EP2940088A1 (en) | 2015-11-04 |
EP2940088A4 (en) | 2016-07-13 |
EP2940088B1 (en) | 2017-08-02 |
US20180273799A1 (en) | 2018-09-27 |
US20160002499A1 (en) | 2016-01-07 |
KR20140106443A (ko) | 2014-09-03 |
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