KR20080101830A - Ultra-violet curable antistatic coating composition - Google Patents

Abstract

A UV curable antistatic coating composition is provided to ensure low rubbing voltage and short decay time, to show antistatic performance with high surface hardness on a base film and sheet. A UV curable antistatic coating composition comprises an acryl or acrylate-based UV curable resin composition containing oxygen or nitrogen; and an antistatic agent. 0.01-20 parts by weight of antistatic agent is mixed based on 100 parts by weight of the whole UV curable resin composition and is used by mixing the metal salt compound and a solvent having a pair of unshared electrons containing oxygen or nitrogen in a weight ratio of 1-99 : 99-1. The metal salt compound is used by mixing single or at least two kinds.

Description

Ultraviolet curable antistatic coating composition

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a technique for imparting antistatic and surface hardness to films and sheets that are insulators, and to an antistatic film using the same. More particularly, the present invention includes components containing oxygen or nitrogen, such as urethane groups, in UV curable resins. By adding an antistatic agent containing a metal salt as an active ingredient to the acrylic or acrylate-based UV curable resin composition in a range that does not impair the hardness and transparency of the coated surface, scratch and antistatic performance of the substrate coated with the composition of the present invention is simultaneously achieved. It relates to a composition to impart and to a film having surface hardness and antistatic performance through it.

In general, the film and sheet used in the display will cause a defect such as scratches or static electricity generated due to friction during the manufacturing and transportation process or lamination process. In order to prevent such defects, polarizing films, diffusion films, prism sheets, and the like used in liquid crystal displays (LCDs) are subjected to antistatic treatment or to improve the surface hardness of films is very important. In addition, these display films generally use a protective film, which requires a process of peeling off the protective film again, and new problems such as adhesive foreign substances are generated due to the transfer of the adhesive layer of the protective film. It has been a problem. Therefore, the invention of the film to which antistatic property was simultaneously provided while providing the surface hardness of 1H or more without reducing transparency is needed.

As a method of improving surface hardness, there exist a method of improving the surface hardness of the base material itself, and the method of apply | coating a high hardness coating composition to the surface. Among the methods generally used, a method of applying a coating composition of high hardness to the surface of the base film is used, and the coating composition used in this method generally uses an ultraviolet curable composition. The UV curable composition mainly uses acrylate oligomers and monomers such as acrylates and methacrylates, and the physical properties depend on the number of reactors or the content ratio of monomers and oligomers. In addition, the physical properties of the composition may be controlled by including epoxy, urethane, and acrylic groups in copolymerized or grafted form.

On the other hand, the antistatic agent of the coating composition is generally used carbon black, quaternary ammonium salts, surfactants and the like. However, these antistatic agents are subject to various restrictions in the use of LCD, and carbon black is difficult to use because of the black color of the product or the occurrence of black foreign substances. Quaternary ammonium salts or surfactants are sometimes used as antistatic agents in coating compositions that require high hardness. (Reference: Republic of Korea Patent No. 10-0184731-0000). However, these components have a problem such as bleeding out to the surface after a certain time elapsed to become a foreign object or a yellowing phenomenon due to deterioration phenomenon to become brown or the antistatic ability is extinguished to generate an electrostatic defect .

As a method of imparting antistatic ability without using the antistatic agent, a so-called IDP (inherently dissipative polymer) may be used. (Reference: Republic of Korea Patent Publication No. 2002-0091198). IDP consists of a polymer containing a metal salt and an ester or ester. In general, IDP is prepared by mixing a metal salt compound (for example, LiN (CF ₃ SO ₃ ) _2, etc.) as a co-solvent with ether-based compounds such as polyethylene glycol and polyester elastomer, amide elastomer or urethane elastomer at a fixed ratio. . However, all of these inventions are techniques for imparting antistatic properties to these polymers by mixing IDP with polystyrene-based polymers, polyester-based polymers, or olefin-based polymers such as polyethylene, and the like. It is an unsuitable technique for the purpose of forming an antistatic layer on the surface of the film by coating while imparting.

Therefore, in the present invention, the invention of the ultraviolet curable antistatic resin composition that can give a permanent antistatic property while the surface hardness is 1H or more, and the invention of the technology that can provide an antistatic film having a surface hardness of 1H or more using the same.

It is an object of the present invention to provide an ultraviolet curable antistatic resin composition capable of imparting permanent antistatic properties with a surface hardness of 1H or more and an antistatic film having a surface hardness of 1H or more using the same.

In order to achieve the above object, the composition of the present invention is characterized in that it comprises an antistatic agent comprising a metal salt in the acrylic or acrylate-based UV-curable resin composition containing oxygen or nitrogen.

The present invention is to prepare an ultraviolet curable antistatic coating resin composition by mixing an antistatic agent consisting of a metal salt into the ultraviolet curable resin composition,

The composition of the coating resin composition is largely composed of an auxiliary solvent having an unshared electron pair such as oxygen or nitrogen, such as a metal salt, an ether, an ester, or a urethane, and an ultraviolet curable resin such as an oligomer or a monomer containing oxygen or nitrogen as an active ingredient. It is an antistatic ultraviolet curable resin composition. Photoinitiators or other additives can be mixed and used here. After coating the antistatic composition thus prepared on the base film, the surface resistance is sufficient to impart antistatic properties to the surface of the polymer film, which is an electrical insulator at 10 ⁸ -10 ¹² ohms / area.

First, the antistatic agent is prepared by using an auxiliary solvent having an unshared electron pair such as oxygen or nitrogen such as a metal salt and an ether group, an ester group or a urethane group. The antistatic agent is prepared by mixing 1-99 parts by weight of a metal salt and 99-1 parts by weight of an auxiliary solvent. If necessary, other additional solvents may be used to improve the dispersibility of the composition. The solvent may be used as long as it can dissolve the ultraviolet curable resin while dissolving the metal salt and the auxiliary solvent. As such a solvent, ketone solvents such as toluene and methyl ether ketone, acetate solvents, lower alcohol solvents such as methyl alcohol, ethyl alcohol and isopropyl alcohol, aldehyde solvents such as dimethyl formaldehyde, diethyl ether and dipropyl ether Ether solvents such as alcohol ethers, amide solvents such as en-methyl-2-pyridyridone, sulfoxide solvents such as dimethyl sulfoxide, amine solvents such as alkyl amines, cyclic amines, aromatic amines, and the like. Any one or more of the solvents may be selected and used.

Metal salt compounds that can be used in the present invention are lithium salts, sodium salts and potassium salts, for example lithium perchlorate (LiClO ₄ ), sodium perchlorate (NaClO ₄ ), potassium perchlorate (KClO ₄ ), lithium hexafluoroalsenate ( LiASF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium hexafluorophosphate (LiPF ₆ ), lithium trifluoromethanesulfonate (LiCF ₃ SO ₃ ), bis (trifluoromethanesulfonyl) imide lithium (LiN (CF ₃ SO ₂ ) ₂ ), tris (trifluoromethanesulfonyl) methedritium (LiC (CF ₃ SO ₂ ) ₃ ), and the like, in particular, LiClO ₄ , LiN (CF ₃ SO ₂ ) ₂ , LiPF ₆ , LiAsF ₆ , LiI, LiBr, LiSCN, LiSO ₃ CF ₃ , LiNO ₃ , LiC (SO ₂ CF ₃ ) ₃ , Li ₂ S and LiMR ₄ (where M is Al or B and R is halogen And a lithium salt compound such as an alkyl or an aryl group, and it is also possible to use a mixture of two or more kinds thereof. The alkali metal salt is a substance that dissociates ions and exhibits ionic conductivity. If the content thereof is too small, the antistatic performance is decreased. If the alkali metal salt is too large, the increase of the antistatic performance is slowed down, and the thermal stability of the metal salt is degraded. Since the mechanical properties of the coating film may be inhibited, the amount of the antistatic agent including the metal salt compound is preferably used between 0.01 parts by weight and 20 parts by weight based on 100 parts by weight of the final antistatic coating composition.

The metal salt compound described above may be used in advance by mixing with a compound having an ether group or an ester group or an ether ester group as a co-solvent in order to facilitate dispersion in the base polymer and to secure stable antistatic properties. Representative compounds include carbonate compounds such as ethylene carbonate, propylene carbonate, dimethyl carbonate and diethyl carbonate, ether or ester or ether esters such as ethylene glycol or propylene glycol, phthalate compounds, adipate compounds and lactone compounds. Although there exist a urethane type compound etc. which have a urethane group and a compound, what is necessary is just to use the compound whose molecular weight is 100-500,000 grams / mol. When the molecular weight is low, the viscosity may be too low to be disadvantageous to the coating. On the contrary, when the molecular weight is too high, it may be difficult to disperse or dissolve in the solvent, so that the coating property may be deteriorated. Therefore, it is preferable to use a compound having the above molecular weight range. Of course, depending on the coating, the molecular weight can be variously selected. On the other hand, when using a polymer such as polyethylene glycol, polyethylene glycol dimethyl ether (dimethyl ether), polyethylene glycol distearate without hydroxyl groups at both ends for compatibility with UV-curable binder resin, that is, oligomer It is advantageous to use distearate, polyethylene glycol dilaurate and the like. Meanwhile, the compound having an ether group or an ester group or an ether ester group described above is mixed with 1-99 parts by weight of a metal salt compound and 99-1 parts by weight of a compound having an ether group, an ester group, an ether ester group, or a urethane group in the preparation of an antistatic agent. If the amount of the compound in the mixing ratio is small, the dispersion of the metal salt compound is not made well, the content of the metal salt is high, and if the amount is increased, the content of the metal salt is too small to be relatively ether group or ester group or ether The content of the compound having an ester group or a urethane group may be a disadvantage that the surface of the composition is slippery.

On the other hand, the UV-curable resin of the present invention has a good adhesion to the substrate of the coating target, using an acrylate resin containing oxygen or nitrogen among the resins having good dispersibility and compatibility with the prepared antistatic agent, urethane It is more effective to use an acrylate resin containing any one or more of components such as groups, ester groups, ether groups, acrylic groups, epoxy groups, amide groups or modified amide groups and carboxyl groups modified therefrom. This is because the charge can be easily transferred through these oxygen groups or nitrogen groups to implement antistatic properties. Such UV curable resins include oligomers or monomers having good adhesion to the substrate to be coated and compatibility with the antistatic agent, and have an acrylate or methacrylate UV curable oligomer having 1-15 functional groups or 1-6 functional groups. The acrylate or methacrylate monomer which has the thing can be used individually or in mixture of 2 or more types.

In addition, a positive ion and a carboxylic acid derivative composed of alkylimidazolium, alkylphosphonium, N-alkylpyridinium, N, N'-dialkylimidazolium, or derivatives thereof may be used to increase the antistatic effect. Using 0.01-10 parts by weight of the ionic liquid made up with respect to the total coating composition, together with the antistatic agent containing a metal salt compound, may lead to an improvement in antistatic performance. In this case, if the content of the ionic liquid is less than 0.01 parts by weight, the effect of addition is small, and if it is 10 parts by weight or more, the increase in the antistatic performance is slowed down, and these components may act as impurities and rather damage the physical properties of the coating layer. It is preferable to use.

In addition, additives such as an antifoaming agent, a leveling agent, a dispersing agent, and an ultraviolet absorber may be further added in an amount of 0.01 to 5 parts by weight based on the total coating composition to reinforce the surface and mechanical properties of the coating composition and improve coating properties. At this time, if the additive content is less than 0.01 parts by weight, the effect of addition is small, and if it is 5 parts by weight or more, these components may act as impurities and may damage the physical properties of the coating layer.

On the other hand, according to the use of the coating composition of the present invention, the polymer beads such as polymethyl methacrylate beads or crosslinked polystyrene beads, or oxide particles such as tin oxide, zinc oxide, titanium oxide, silica, or other fillers are coated on the whole. It may be used by mixing 0.01-100 parts by weight relative to the composition. Although the content ratio varies depending on the type of beads or fillers used, it may be difficult to achieve the purpose of using each filler or bead when the content is less than the minimum content. If the content is more than the maximum content, the light transmittance or the excessive content is used. Therefore, since the physical properties of the coated surface can be reduced, it is preferable to use within the above range.

Photoinitiator should be mixed with the ultraviolet curable resin composition of this invention. The photoinitiator has a short wavelength and a long wavelength photoinitiator can be used alone or a mixture of these two photoinitiators. In order to achieve the object of the present invention, it is not limited to a special photoinitiator, but an appropriate photoinitiator may be selected and used according to the wavelength type of the ultraviolet lamp of the ultraviolet curing machine.

Ester, ether, urethane, urea or urethane-urea, amide, imide, etc. containing an element having oxygen or nitrogen having a non-covalent electron pair in the composition according to the present invention in one or two or more copolymerized or graft forms The physical properties of the composition may be further controlled by further comprising a composition in combination with an acrylate or methacrylate.

As the object to which the coating composition according to the present invention can be coated, the base polymer film (or sheet) or the injection molded product may use any polymer that requires surface hardness and antistatic property. Examples of the polymer used for the display include ester polymer films such as polyethylene terephthalate, styrene polymer films such as polystyrene, olefin polymer films such as cyclic olefin polymers, carbonate polymer films such as polycarbonate, and polyimide. It may be applied to a de-based polymer film, a sulfone-based polymer film such as polyether sulfone, a cellulose-based polymer film such as triacetyl cellulose, an acrylic polymer film such as polymethyl methacrylate, or any other polymer film or sheet. It is also applicable to polymer films that have only one component or are complexed or blended with two or more components.

In addition, when the composition of the present invention is applied to an optical film or sheet, in consideration of the refractive index of the base film and the polymer constituting the sheet, the UV light curable resin having a lower refractive index than the base polymer, When the UV curable resin having a higher refractive index than the base polymer is used, an optical film and a sheet having improved light transmittance can be obtained. For example, if the base film is a polyester film having a refractive index of 1.65, and wants to improve the hardness of the light-receiving surface, use an ultraviolet curable resin having a refractive index of less than 1.65, and want to improve the hardness of the light-reversed surface. In the case of using an ultraviolet curable resin having a refractive index greater than 1.65, it is possible to produce a film having improved hardness while improving light transmittance.

As one of the methods for maximizing the effect in providing the antistatic property, which is the object of the present invention, an antistatic layer containing a conductive polymer as an active ingredient is first formed on the base film surface, and then the antistatic layer for hard coating of the present invention is formed thereon. Formation is advantageous because the antistatic effect can be maximized. In this case, the antistatic layer may be formed using a conductive polymer as an active ingredient, and various conventional methods may be used. For example, a known technique (Reference: Republic of Korea Patent No. 422321) may be used.

Depending on the type of polymer, the UV curable resin composition of the present invention may have poor adhesion to the surface of the polymer. In this case, when the surface of the polymer is modified to have 35 dynes / area or more by primer treatment or corona treatment with an adhesion promoter, It is effective because it can enhance the adhesion on the surface.

The composition of the UV curable coating composition is not particularly limited as long as it is a method commonly known in the art, and depending on the material and shape of the base film, air knife method, gravure method, reverse roll method, reverse gravure method, spray method, slot Any coating method can be used as long as it is not limited to a special method such as a die coating method, a blade method, an impregnation method, or a spray coating method and is commonly used. In addition, a composite coating method in which two or more of these methods are applied may be used.

Hereinafter, the present invention will be described in detail with reference to the following examples. However, the following examples are only examples for describing the present invention and do not limit the scope of the present invention.

<Measurement of properties>

Surface resistance, friction voltage, decay time, surface hardness, and adhesion were measured to prove the effect of the present invention. Each specimen was made to a size of 10 cm × 10 cm, and the measurement method of each item was as follows.

Surface resistance: After applying the coating composition to the base film using ProRS PRS-801 of the United States and UV cured to prepare a specimen, the surface resistance was measured according to the method of ESD STM 11.11.

Friction voltage: After coating composition on base film surface, UV cured to make specimen, and after wearing nitrile gloves, rub it ten times strongly, and using FMX-003 manufactured by Japan Simco, ESD Measurement was made according to the STM 11.2 method.

Decay time: After coating the coating composition on the base film surface and UV cured to prepare a specimen, it was measured according to the FTMS 101C method using CPM 288 of Monroe Electronics.

Surface Hardness: After coating the coating composition on the surface of the base film and UV cured to prepare a specimen, the pencil hardness was measured using the method of ASTM D 3363.

Adhesion: After the coating composition was applied to the surface of the base film, UV cured to prepare a specimen, and measured using the method of ASTM D 3359.

Comparative Example 1

A coating composition was obtained by mixing 1 gram of a photoinitiator with 100 grams of UV-curable urethane acrylic oligomer dissolved in 50 parts by weight of methyl ethyl ketone, using a bar coater, coated on a 100 micron polyester film, and dried at 80 degrees for 2 minutes. The amount of joules was irradiated to form a coating film. At this time the coating thickness of the composition was 3 microns.

Table 1 shows the physical properties of the sheet produced by the above technique.

<Example 1>

4 g of LiN (CF ₃ SO ₂ ) _{2 and} 6 g of polyethylene glycol dilaurate were mixed at a temperature of 70 degrees for 6 hours to prepare an antistatic agent. 0.1 gram of this antistatic agent was dissolved in 50 parts by weight of methyl ethyl ketone, and 100 grams of UV-curable urethane acrylic oligomer was mixed with 100 grams of photoinitiator to a 100 micron polyester film using a bar coater. After drying, the coating film was formed by irradiating with 300 milli Joules of light. At this time the coating thickness of the composition was 3 microns.

Table 1 shows the physical properties of the coating film prepared by the above technique.

<Example 2>

Example 2 is the same as in Example 1 except that the amount of the antistatic agent to 0.5 grams when mixing the coating composition of Example 1.

Table 1 shows the physical properties of the coating film prepared by the above technique.

<Example 3>

Example 3 is the same as in Example 1 except that the amount of the antistatic agent to 1 gram when mixing the coating composition of Example 1.

Table 1 shows the physical properties of the coating film prepared by the above technique.

<Example 4>

Example 4 is a poly (3,4-ethylenedioxythiophene) as an antistatic composition (reference: Republic of Korea Patent No. 422321) containing a conductive polymer as a main component on the film surface before application of the coating composition of Example 2. An antistatic composition was prepared by mixing 1 gram of a dispersion solution, 0.3 gram of a water-soluble urethane acrylic binder, 0.03 gram of a urethane curing agent, 0.3 gram of ethyl acetate, 0.3 gram of NMP, 5.5 grams of isopropyl alcohol, 3 grams of water, and 0.005 grams of a wetting agent. After coating, it was dried with hot air at 80 degrees to form an antimicrobial layer having a thickness of 0.2 micron. It is the same as that of Example 1 except using the coating composition of Example 2 to form an ultraviolet cured antistatic layer on the surface.

Table 1 shows the physical properties of the coating film prepared by the above technique.

Example 5

Example 5 is the same as Example 2 except for adding 0.2 gram of an ionic liquid composed of butylmethylimidazolium and ethylhexanoate.

Table 1 shows the physical properties of the coating film prepared by the above technique.

Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Surface Resistance (Ω / sq) > 1E13 1E10 5E10 1E10 1E10 8E9 Friction Voltage (kV) 18.6 1.9 1.1 0.5 0.1 0.3 Decay time (s) > 300 180.4 114.2 50.1 20.8 22.7 Surface hardness 2H 2H 2H 2H 2H 2H Adhesion 5B 5B 5B 5B 5B 5B

Effect of IDP Content

<Example 6>

Example 6 is the same as Example 1 except that the coating thickness is 5 microns.

Table 2 shows the physical properties of the coating film prepared by the above technique.

<Example 7>

Example 7 is the same as Example 1 except that the coating thickness is 10 microns.

Table 2 shows the physical properties of the coating film prepared by the above technique.

Example 1 Example 6 Example 7 Coating film thickness (㎛) 3 5 10 Surface hardness 2H 3H 4H

Change of Surface Hardness According to Coating Thickness

Comparative Example 2

Comparative Example 2 is a light diffusing film manufactured in the form of a general diffusion film.

Table 3 shows the physical properties.

<Example 8>

Example 8 is the same as Comparative Example 2 except that the coating on the opposite side of the diffusion film of Comparative Example 2 by the method of Example 1.

Table 3 shows the physical properties of the coating film prepared by the above technique.

Comparative Example 2 Example 8 Surface Resistance (Ω / sq) > 1E13 1E10 Friction Voltage (kV) > 20 1.5 Decay time (s) > 300 170 Surface hardness H 2H

 Comparison of Electrostatic Performance and Surface Properties of Diffusion Films Coated with Compositions of the Invention

Comparative Example 3

Comparative Example 3 is a commonly used prism sheet. This sheet was cut to the size of a 17 "LCD monitor. It was assembled into a backlight unit for a two-side edge light type LCD monitor, in which two cold cathode fluorescent lamps (CCFLs) were connected to each side, and the luminance and luminance distribution were adjusted to BM. It measured using the -7 luminance meter.

Table 4 shows the physical properties.

Example 9

Example 9 is the same as Comparative Example 3 except that the coating on the opposite surface of the prism sheet of Comparative Example 3 by the method of Example 1. This sheet was cut to the size of a 17 "LCD monitor. It was assembled into a backlight unit for a two-side edge light type LCD monitor, in which two cold cathode fluorescent lamps (CCFLs) were connected to each side, and the luminance and luminance distribution were adjusted to BM. It measured using the -7 luminance meter.

Table 4 shows the physical properties of the coating film prepared by the above technique.

<Example 10>

Example 10 is the same as Example 9 except for coating by further adding 5 grams of average diameter 10 micron polymethylmethacrylate beads to the resin composition of Example 1. This sheet was cut to the size of a 17 "LCD monitor. It was assembled into a backlight unit for a two-side edge light type LCD monitor, in which two cold cathode fluorescent lamps (CCFLs) were connected to each side, and the luminance and luminance distribution were adjusted to BM. It measured using the -7 luminance meter.

Table 4 shows the physical properties of the coating film prepared by the above technique.

Comparative Example 3 Example 9 Example 10 Surface Resistance (Ω / sq) > 1E13 1E10 1E10 Friction Voltage (kV) > 20 1.9 2.1 Decay time (s) > 300 176.2 182.3 Surface hardness H 2H 2H Average luminance (cd / m ² ) 5,723 5,543 5,762 Luminance Uniformity (%) 85.2 84.5 89.6

Comparison of Static, Surface and Optical Properties of Prism Sheets Coated with the Compositions of the Present Invention

<Comparative Example 4>

Comparative Example 4 is a general optical polyester film.

Physical properties are shown in Table 5.

<Example 11>

Example 11 is the same as that of Example 2, except that the UV curable resin composition having a refractive index of 1.55 is applied to a surface on which light enters a polyester film having a refractive index of 1.65 when the UV curable resin is selected. The optical properties of this film were taken at 550 nm using UV-VIS (S-3100, Sinco).

Table 5 shows the physical properties of the coating film prepared by the above technique.

<Example 12>

Example 12 is the same as that of Example 11, except that the ultraviolet curable resin composition having a refractive index of 1.75 is applied to the light emitting surface to the polyester film having a refractive index of 1.65 when the ultraviolet curable resin is selected. The optical properties of this film were taken at 550 nm using UV-VIS (S-3100, Simco).

Table 5 shows the physical properties of the coating film prepared by the above technique.

Comparative Example 4 Example 11 Example 12 Total light transmittance (%) 86.9 87.7 87.5

Changes in Optical Properties by Controlling the Refractive Index of Coating

Using the technique of the present invention, the base film and the sheet have a high hardness surface hardness and exhibit a desired antistatic performance of about 10 ⁸ -10 ¹² ohms / area, and can give a low friction voltage and a short decay time. Can be. Especially when hard coating on the opposite side, there is no need to use a protective film commonly used, so that the final product is easy to handle and economical.

Claims (18)

In the ultraviolet curable antistatic coating composition, An ultraviolet curable antistatic coating composition comprising an antistatic agent comprising a metal salt in an acrylic or acrylate UV curable resin composition comprising oxygen or nitrogen. The auxiliary solvent having a non-covalent electron pair containing the metal salt compound and oxygen or nitrogen is mixed in a ratio of (1-99) :( 99-1) and used as an antistatic agent according to claim 1. UV curable antistatic coating composition. The antistatic agent of claim 2 is mixed with 0.01-20 parts by weight when the total UV curable resin composition is 100 parts by weight of the ultraviolet curable antistatic coating composition. The method of claim 2, The metal salt compounds include lithium perchlorate (LiClO ₄ ), sodium perchlorate (NaClO ₄ ), potassium perchlorate (KClO ₄ ), lithium hexafluoroalsenate (LiASF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium hexafluoro Phosphate (LiPF ₆ ), lithium trifluoromethanesulfonate (LiCF ₃ SO ₃ ), bis (trifluoromethanesulfonyl) imide lithium (LiN (CF ₃ SO ₂ ) ₂ ), tris (trifluoromethanesul Ponyl) Methytritium (LiC (CF ₃ SO ₂ ) ₃ ), LiPF ₆ , LiAsF ₆ , LiI, LiBr, LiSCN, LiSO ₃ CF ₃ , LiNO ₃ , LiC (SO ₂ CF ₃ ) ₃ , Li ₂ S and LiMR ₄ (wherein M is Al or B and R is a halogen, alkyl or aryl group) an alkali metal salt compound is used alone or in combination of two or more thereof, Examples of the auxiliary solvent include carbonate compounds containing ethylene carbonate, propylene carbonate, dimethyl carbonate and diethyl carbonate, or ethylene glycol or propylene glycol, polyethylene glycol dilaurate, phthalate compounds, adipate compounds, and lactone compounds. UV-curable antistatic coating composition, characterized in that used in the ether or ester or ether ester compound, urethane or amide compounds of the molecular weight of 100-500,000 grams / mole alone or in combination of two or more. The acrylate / methacrylate UV curable oligomer according to claim 3, wherein the UV curable resin comprises an oligomer or monomer having good adhesion to the substrate to be coated and compatibility with the antistatic agent, and having 1 to 15 functional groups. UV-curable antistatic coating composition, characterized in that the acrylate / methacrylate monomer having 1-6 functional groups are used alone or in combination of two or more. The method of claim 3, wherein the antistatic agent, Toluene, ketone solvent containing methyl ether ketone, acetate solvent, methyl alcohol, ethyl alcohol, alcohol solvent containing isopropyl alcohol, aldehyde solvent containing dimethyl formaldehyde, diethyl ether, dipropyl ether, alcohol Ether solvent including ether, amide solvent including en-methyl-2-pyridyridone, sulfoxide solvent including dimethyl sulfoxide, alkyl amine, cyclic amine, amine including aromatic amine UV curable antistatic coating composition, characterized in that it further comprises a solvent comprising any one or more of the solvent. The method according to claim 3, wherein the coating composition is a cation composed of alkylimidazolium, alkylphosphonium, N-alkylpyridinium, N, N'-dialkylimidazolium or derivatives thereof, and the like for the purpose of increasing the antistatic effect. UV-curable antistatic coating composition, characterized in that it further comprises 0.01 to 10 parts by weight of the ionic liquid consisting of an anion which is a carboxylic acid derivative in the coating composition content. According to claim 3, In order to reinforce the surface or mechanical properties of the coating composition and to improve the coating property, an additive including any one or more of an antifoaming agent, a leveling agent, a dispersant, and an ultraviolet absorber 0.01 to 5 weight of the total coating composition UV curable antistatic coating composition, characterized in that it further comprises a part. 4. The glass composition according to claim 3, wherein the coating composition includes glass beads and metal oxide beads such as zinc oxide, tin oxide, titanium oxide, polymethyl methacrylate, crosslinked polyethylene beads, etc. to impart light diffusing properties. UV-curable antistatic coating composition, characterized in that it further comprises 0.01-100 parts by weight of the polymer-type beads in the coating composition content. The method of claim 3, wherein the coating composition is copolymerized or graft form of one, two or more esters, ethers, urethanes, ureas or urethane-ureas, amides, imides, etc., including elements having oxygen or nitrogen having a non-covalent electron pair. UV curable antistatic coating composition, characterized in that it further comprises a composition of the form combined with acrylate or methacrylate. 7. The coating composition of claim 1, wherein the coating composition is The composition is an anion that is a cation and a carboxylic acid derivative composed of alkylimidazolium, alkylphosphonium, N-alkylpyridinium, N, N'-dialkylimidazolium, or derivatives thereof to increase the antistatic effect. 0.01-10 parts by weight of the ionic liquid made of the coating composition; 0.01-5 parts by weight of an additive including any one or more of an antifoaming agent, a leveling agent, a dispersing agent, and an ultraviolet absorbent to the surface or mechanical properties of the coating composition and to improve coating properties; And In order to impart light diffusing properties, glass beads including glass beads and polymer beads including metal oxide beads such as zinc oxide, tin oxide, and titanium oxide, polymethyl methacrylate, and crosslinked polystyrene are added to the coating composition content. 0.01-100 parts by weight; UV curable antistatic coating composition, characterized in that it further comprises. A coating film coated using the ultraviolet curable antistatic coating composition of any one of claims 1 to 10. The method of claim 12, wherein the film is A display film including a diffusion film, a prism film, a protective film, a reflective film, and a polarizing film; or A display sheet including a diffusion sheet, a prism sheet, and a reflection sheet; Coating film, characterized in that used as. The method of claim 12, wherein the base film of the coating film is a polymer requiring surface hardness and antistatic properties, including an ester-based polymer film containing polyethylene terephthalate, a styrene-based polymer film containing polystyrene, a cyclic olefin polymer An olefin polymer film, a carbonate polymer film containing polycarbonate, an imide polymer film containing polyimide, a sulfone polymer molecule containing polyether sulfone, a cellulose polymer film containing triacetyl cellulose, And an acrylic polymer film including polymethyl methacrylate, which is a laminated film in which any one or two or more components are mixed or laminated. The method according to claim 12, wherein when the film is an optical film or a sheet, an ultraviolet curable resin having a lower refractive index than that of the base film is used for the surface where light enters according to the refractive index of the base film or the sheet, or the base film on the opposite side where light enters. A coating film, characterized in that each of the UV curable resins having a higher refractive index is used or both surfaces. The method of claim 12, wherein the coating is coated using an air knife method, gravure method, reverse roll method, reverse gravure method, spray method, slot die coating method, blade method, impregnation method or spray coating method Coated film. The coating film according to claim 12, wherein an antistatic layer containing a conductive polymer as an active ingredient is first formed on a surface of the base film of the coating film, and then the coating composition is coated. An injection molded product coated using the ultraviolet curable antistatic coating composition of any one of claims 1 to 10.