WO2014142580A1 - 코팅 조성물 - Google Patents
코팅 조성물 Download PDFInfo
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- WO2014142580A1 WO2014142580A1 PCT/KR2014/002124 KR2014002124W WO2014142580A1 WO 2014142580 A1 WO2014142580 A1 WO 2014142580A1 KR 2014002124 W KR2014002124 W KR 2014002124W WO 2014142580 A1 WO2014142580 A1 WO 2014142580A1
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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
- 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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- 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
- 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
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
Definitions
- the present invention relates to a coating composition. More specifically, it is related with the composition 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 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 hard coat layer on a support substrate to achieve films with high hardness and wear resistance properties.
- 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 the thickness of the hard coating layer.
- the thickness of the hard coating layer As the thickness of the hard coating layer is increased, 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 realize high hardness of the hard coat film 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 3H.
- the present invention provides a coating composition capable of forming a plastic film excellent in workability without exhibiting curling or 3 ⁇ 4 or creek while exhibiting high hardness.
- the present invention provides a coating composition comprising a 3 to 6 functional acrylate monomer, a thermosetting prepolymer composition, a photoinitiator, inorganic fine particles, and an organic solvent.
- a plastic film exhibiting high hardness, impact resistance, scratch resistance, high transparency, and low curl or crack generation with excellent processability can be produced, and such plastic film is a cover plate 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.
- the coating composition of this invention contains a 3-6 functional acrylate type monomer, a thermosetting prepolymer composition, a photoinitiator, an inorganic fine particle, and an organic solvent.
- 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 It can be formed additionally on each subject, the object, the substrate.
- the present invention provides a coating composition comprising a 3 to 6 functional acrylate monomer, a thermosetting prepolymer composition, a photoinitiator, inorganic fine particles and an organic solvent.
- 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 include trimethylolpropane triacrylate (TMPTA), trimethylolpropane ethoxy triacrylate (TMPEOTA), glycerin propoxylated triacrylate (GPTA), and pentaerythritol.
- TMPTA trimethylolpropane triacrylate
- TMPEOTA trimethylolpropane ethoxy triacrylate
- GPTA glycerin propoxylated triacrylate
- DPHA glycerin propoxylated triacrylate
- DPHA glycerin propoxylated triacrylate
- the 3 to 6 functional acrylate-based monomers are cross-polymerized with each other by ultraviolet irradiation to form a cross-linked copolymer, and may provide high hardness to the coating layer formed by including the cross-linked copolymer.
- thermosetting prepolymer composition based on 100 parts by weight of the solid content including the 3 to 6 functional acrylate monomer, the thermosetting prepolymer composition, the photoinitiator, and the inorganic fine particles (the form of the thermosetting prepolymer composition dissolved in a solvent)
- the thermosetting prepolymer composition based on solid components other than the solvent
- about 40 to about 80 parts by weight, or about 50 to about 80 parts by weight When the 3 to 6 functional acrylate monomer is in the above range, it is possible to form a plastic 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 comprising 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 dissolved or not dissolved in a solvent.
- the thermosetting prepolymer composition may comprise a polyester-based polyurethane oligomer, poly, and polyisocyanate. More specifically, 10 to 40% by weight of the polyester-based polyurethane oligomer, 5 to 30% by weight of the polyol, and 50 to 80% by weight of the pulley isocyanate based on the total weight of solids of the thermosetting prepolymer composition may include 0/0.
- the present invention is not limited thereto.
- the polyester-based polyurethane oligomer has a number average molecular weight of about 1,000 to about 100,000 g / mol, the viscosity in a solution dissolved in a concentration of 15% in cyclonucleic acid has a viscosity of about 100 to about 3,000 cps, Tg may be used to have a physical property of -30 to 40 ° C, but the present invention is not limited thereto.
- Polyester-based having the above physical properties Polyurethane oligomers can 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 polyol may be used that has a number average molecular weight of about 1,000 to about 100,000 g / mol.
- the type of the polyol is not particularly limited, but preferably, poly is selected from the group consisting of polyethylene glycol poly, polycaprolactone polyol, polyester pulley, polyether poly, polyacryl polyol and polycarbonate polyol diol. More than one species can be used. More specific examples of the polyol may include 1,4-butanedi, dietylene glycol, dipropylene glycol, polyalkylene glycol having an alkyl group having 1 to 5 carbon atoms, and polyalkylene ether flilly.
- the polyalkylene ether poly is 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 be 4,4'-diphenylmethane diisocyanate, 1,3-phenylene diisocyanate, or toluene diisocyanate. It is also possible to use polyisocyanates polymerized by dimers or trimers of the diisocyanates described above.
- the components included in the above-mentioned thermosetting prepolymer composition may be cross-polymerized with each other by thermal curing to form a thermosetting resin to impart high hardness and processability to the coating layer.
- the substrate in addition to the binder containing a 3 to 6 functional acrylate monomer cross-polymerized by light irradiation, by including the thermosetting prepolymer composition, the substrate together with the coating layer in the photocuring process of the 3 to 6 functional acrylate monomer It can compensate for the occurrence of hardening shrinkage or curl phenomenon.
- the curling phenomenon refers to a phenomenon in which a corner or the like is curved or curled when the film having a flat structure is laid out 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 replacement for the cover plate, 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 to a certain thickness or more. do. 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 phenomenon in which the full plastic film curls easily occurs. Accordingly, a process of planarizing the supporting 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.
- thermosetting prepolymer composition in addition to the acrylate monomer capable of photocuring, by further comprising a thermosetting prepolymer composition, it is possible to prevent curling due to photocuring while maintaining high hardness.
- the toughness of the plastic film can be improved to improve the processability of the plastic film. 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) is about 1: 0.01 to about 1: 3, or about 1: 0.1 to about 1: 2, Or about 1: (3.1 to about 1: 1.5, or about 1: 0.1 to 1: 1.2 by weight.
- High hardness when the 3 to 6 functional acrylate-based monomer and thermosetting prepolymer composition is included in the above range It is possible to form a plastic film having a good processability while maintaining.
- the thermosetting prepolymer composition is based on 100 parts by weight of the solid content containing the 3 to 6 functional acrylate-based monomers, thermosetting prepolymer composition, photoinitiator, and inorganic fine particles (the thermosetting prepolymer composition is When included in a solvent dissolved form, based on solid components other than the solvent), about 5 to about 50 parts by weight, or about 10 to about 40 parts by weight.
- the thermosetting prepolymer composition is in the above range, it is possible to form a plastic film having good physical properties such as high hardness and high processability.
- the thermosetting prepolymer composition may further include a catalyst to promote the 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 triethylene 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 relative to the thermosetting prepolymer composition.
- the catalyst is in the above range, the crosslinked thermal polymerization can be achieved without lowering the physical properties of the composition.
- the coating composition of the present invention comprises 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, ⁇ , ⁇ - _ Di-methoxy- ⁇ -phenyl acetophenone, 2-benzoyl-2- (di-methyl amino) - 1 - [4- (4-morpholine-yl) phenyl] - 1-butanone, 2-methyl-1- [ 4- (methylthio) phenyl] -2- (4-morpholinyl) -1-propanone diphenyl (2,4,6-tri methylbenzoyl) -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 photoinitiator, and the inorganic particles. Parts by weight, or about 0.5 to about 3 parts by weight.
- the photoinitiator is in the above range, sufficient crosslinking polymerization can be achieved without lowering the physical properties of the plastic film.
- the coating composition of the present invention comprises inorganic particulates.
- the inorganic fine particles having a particle size of nanoscale for example, the nanoparticles having a particle diameter of about lOOnm or less, or about 10 to about lOOnm, or about 10 to about 50nm.
- Particles can be used.
- silica fine particles, aluminum oxide particles, titanium oxide particles, or zinc oxide particles may be used.
- the inorganic fine particles By including the inorganic fine particles, it is possible to further improve the hardness of the plastic film.
- the inorganic fine particles are about 5 parts by weight based on 100 parts by weight of the solid containing the 3 to 6 functional acrylate monomer, the thermosetting prepolymer composition, the photoinitiator, and the inorganic fine particles To about 40 parts by weight, or about 10 to about 40 parts by weight.
- the coating composition of the present invention comprises an organic solvent.
- the organic solvent may be an alcohol solvent such as methanol, ethane, isopropyl alcohol, butane, 2-methoxyethane, 2-ethoxyethane, 1-methoxy-2.
- Alkoxy alcohol solvents such as propanol, 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 Ether solvents such as propyl ether ethylene glycol monobutyl ether diethylene glycol monomethyl ether diethyl glycol monoethyl ether diethyl glycol monopropyl ether diethyl glycol monobutyl ether diethylene glycol -2-ethyl nucleosil ether, benzene, leuene And aromatic solvents such as xylene can be used alone or in combination.
- the content of the organic solvent is not particularly limited because it can be variously controlled within a range that does not lower the physical properties of the coating composition of the present invention, the 3 to 6 functional acrylate monomer,
- the solid content: organic solvent and the weight ratio may be included in a range of about 70:30 to about 99: 1 based on 100 parts by weight of the solid content including the thermosetting prepolymer 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 of the present invention in addition to the aforementioned components, may further include additives commonly used in the art to which the present invention belongs, such as surfactants, anti-yellowing agents, leveling agents, antifouling agents.
- additives commonly used in the art to which the present invention belongs such as surfactants, anti-yellowing agents, leveling agents, antifouling agents.
- the content can be variously adjusted within a range that does not lower the physical properties of the coating composition of the present invention, 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. have.
- the coating composition may include a surfactant as an additive, and the surfactant may be a 1 to 2 functional 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 crosslinked copolymer.
- the additive may include a yellowing inhibitor, the yellowing Examples of the inhibitor include benzophenone compounds, benzotriazole compounds, and the like.
- the viscosity of the coating composition is not particularly limited as long as it has a range of appropriate flowability and applicability, for example, may have a viscosity of about l, 200 cps or less at a silver degree of 25 ° C. have.
- the coating composition of the present invention comprising the above-mentioned components may form a coating layer by applying a support substrate to photocuring and thermosetting.
- using the coating composition of the present invention using a coating composition 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 form a coating layer having a thickness of about 150 kPa.
- the film including the coating layer formed using the coating composition of the present invention exhibits excellent high hardness, impact resistance, scratch resistance, high transparency, durability, light resistance, high transmittance, and the like, and can be usefully used in various fields.
- the coating layer formed using the coating composition of the present invention may be formed only on one surface of the substrate.
- the coating layer formed using the coating composition of the present invention may be formed on both sides of the 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 substrate.
- a process of drying the coating composition at a constant temperature may be further performed to evaporate the solvent and form a flat film.
- the first coating composition is first applied to one surface of the substrate and photocured, and then heated to constant silver to perform thermal curing.
- the second coating composition is applied and photocured on the other side of the support substrate, that is, the back side, and then heated to a constant temperature to perform thermosetting.
- 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 order of photocuring and thermosetting can be changed. The higher the thickness of the coating layer, the less ultraviolet light reaches the lower part of the coating layer, so that incomplete curing of the coating layer may become a problem.
- 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 thermosetting for curing the thermosetting prepolymer composition may be optionally performed one or more times before the ultraviolet irradiation for photocuring and / or after the ultraviolet irradiation.
- 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.
- 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 10cm 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 temperature of more than 70 hours at a temperature of 50 ° C or more and 80% or more after 70 hours, each of the plastic film The maximum value of the distance away from the edge or one side 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 the plane after exposure to 70 to 100 hours at a silver of 50 to 90 ° C and 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.
- the plastic film formed using the coating composition of the present invention exhibits excellent high hardness, high processability, scratch resistance, high transparency, durability, light resistance, light transmittance, and the like, and can be usefully used in various fields.
- the plastic film formed using the coating composition of the present invention may have a pencil hardness of 6H or more, or 7H or more, or 8H or more at 1 kg load.
- the plastic film formed by using the coating composition of the present invention may have a good layer resistance to replace the glass.
- the plastic film of the present invention may be free of cracks when freely falling a metal ball of 23 ⁇ 4 at a height of 40 cm.
- the plastic film formed using the coating composition of the present invention may have a light transmittance of 92% or more and a haze of 1.0% or less, or 0.5% or less, or 0.4% or less.
- the plastic film formed using the coating composition 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 colorb * and the color b * after exposure to the 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 using the coating composition 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.
- thermosetting prepolymer composition having a solid content of about 70% including a polyester-based polyurethane oligomer, a polyol, and a polyisocyanate.
- thermosetting preliminary composition of Preparation Example 1 2.0 g of the thermosetting preliminary composition of Preparation Example 1, and silica-defentaeryri containing 40% by weight of nano silica having a particle diameter of 20 to 30 nm, a nucleated acrylate (DPHA) complex 9 g (silica 3.6 g, DPHA 5.4 g)
- DPHA nucleated acrylate
- a first coating composition 0.2 g of a photo-initiated crab (trade name: Darocur TPO), 0.2 g of a benzotriazole-based yellowing inhibitor (trade name: Tinuvin 400) O.lg, and 0.05 g of a fluorine-based surfactant (trade name: FC4430) were prepared. . In the same manner, the first coating composition was also prepared.
- the first coating composition was applied onto a PET support substrate of 15 cm ⁇ 20 cm, thickness 188 / ⁇ .
- photocuring was performed by irradiating ultraviolet rays 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 layer.
- 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 13 ° C for 30 minutes. After completion, 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 1 the silica composite -DPHA 9g instead particle diameter of 20 ⁇ 30nm nano silica is 40 parts by weight 0 / dispersed silica-trimethyl propane 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-trimethyl propane triacrylate
- Example 1 A plastic film was prepared in the same manner as in Example 1, except that 0.7 g of the thermosetting prepolymer composition of Preparation Example 1 was used instead of 2.0 g.
- Example 5 A plastic film was prepared in the same manner as in Example 1, except that 0.7 g of the thermosetting prepolymer composition of Preparation Example 1 was used instead of 2.0 g.
- 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 the thermosetting prepolymer composition of Preparation Example 1 was not included.
- DPHA composite 4 g of silica, DPHA 6 g
- thermosetting prepolymer composition of Preparation Example 1 was not included.
- 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 maximum value of the distance of each corner or one side spaced from the plane was measured.
- Each plastic film was wrapped in a cylindrical mantel with a diameter of 3 cm, and then the presence of cracks was evaluated by 0K and the case of cracks was evaluated by X.
- the plastic films of Examples 1 to 5 of the present invention exhibited good properties in all of their physical properties. In particular, it exhibited excellent curlability and flexibility as well as high hardness.
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Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480015365.XA CN105143369B (zh) | 2013-03-15 | 2014-03-13 | 涂料组合物 |
JP2015562926A JP6155346B2 (ja) | 2013-03-15 | 2014-03-13 | コーティング組成物 |
EP14765052.7A EP2949713B1 (en) | 2013-03-15 | 2014-03-13 | Coating composition |
US14/777,003 US9447285B2 (en) | 2013-03-15 | 2014-03-13 | Coating composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR20130028140 | 2013-03-15 | ||
KR10-2013-0028140 | 2013-03-15 | ||
KR10-2014-0029032 | 2014-03-12 | ||
KR1020140029032A KR101470467B1 (ko) | 2013-03-15 | 2014-03-12 | 코팅 조성물 |
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WO2014142580A1 true WO2014142580A1 (ko) | 2014-09-18 |
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PCT/KR2014/002124 WO2014142580A1 (ko) | 2013-03-15 | 2014-03-13 | 코팅 조성물 |
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US (1) | US9447285B2 (ko) |
EP (1) | EP2949713B1 (ko) |
JP (1) | JP6155346B2 (ko) |
KR (1) | KR101470467B1 (ko) |
CN (1) | CN105143369B (ko) |
TW (1) | TWI510570B (ko) |
WO (1) | WO2014142580A1 (ko) |
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US20160040016A1 (en) | 2016-02-11 |
EP2949713B1 (en) | 2017-10-25 |
TW201502219A (zh) | 2015-01-16 |
JP2016511318A (ja) | 2016-04-14 |
CN105143369B (zh) | 2017-10-24 |
CN105143369A (zh) | 2015-12-09 |
JP6155346B2 (ja) | 2017-06-28 |
KR20140113424A (ko) | 2014-09-24 |
EP2949713A1 (en) | 2015-12-02 |
EP2949713A4 (en) | 2016-07-13 |
KR101470467B1 (ko) | 2014-12-08 |
US9447285B2 (en) | 2016-09-20 |
TWI510570B (zh) | 2015-12-01 |
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