WO2018155784A1 - Film de revêtement dur et dispositif d'affichage d'image le comprenant - Google Patents

Film de revêtement dur et dispositif d'affichage d'image le comprenant Download PDF

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Publication number
WO2018155784A1
WO2018155784A1 PCT/KR2017/012274 KR2017012274W WO2018155784A1 WO 2018155784 A1 WO2018155784 A1 WO 2018155784A1 KR 2017012274 W KR2017012274 W KR 2017012274W WO 2018155784 A1 WO2018155784 A1 WO 2018155784A1
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WO
WIPO (PCT)
Prior art keywords
hard coating
film
butyl
methylimidazolium
imide
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PCT/KR2017/012274
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English (en)
Korean (ko)
Inventor
김승희
이자영
Original Assignee
동우화인켐 주식회사
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Publication of WO2018155784A1 publication Critical patent/WO2018155784A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/16—Anti-static materials

Definitions

  • the present invention relates to a hard coat film and an image display device including the same.
  • the image display device may be composed of a liquid crystal cell containing a liquid crystal, a polarizing plate, and the like, which are mainly bonded by forming an adhesive layer on one surface of the polarizing plate.
  • a surface protective film such as a retardation plate, a wide viewing angle compensation plate, and brightness enhancement is additionally attached to the polarizing plate through an adhesive or the like.
  • the optical members such as the surface protection film and the polarizing plate are made of a plastic material, static electricity is generated during friction and peeling, and when voltage is applied to the liquid crystal while the static electricity remains, the orientation of the liquid crystal molecules is lost or the panel is defective. This can happen. Therefore, various antistatic treatments are performed to prevent such defects.
  • Korean Patent Publication No. 2011-0112263 discloses a method of introducing a functional group having excellent compatibility with an antistatic agent in a monomer of the pressure-sensitive adhesive composition to suppress bleeding of the antistatic agent. However, durability is deteriorated under high temperature and high humidity conditions. Did not solve.
  • An object of the present invention is to provide a hard coating film having excellent slip properties and significantly less static electricity generation, and an image display device including the same.
  • the hard coating layer is formed by hardening the composition for forming a hard coating layer comprising an antistatic agent, a translucent resin, a solvent and an initiator, a hard coating film.
  • the antistatic agent comprises a siloxane-based resin, hard coating film.
  • the concentration of at least one of the fluorine atoms and silicon atoms is higher than the center side of the cross-section, Hard coated film.
  • the light-transmitting resin comprises a dendrimer compound, hard coating film.
  • the hard coating layer-forming composition comprises a nano silica sol, hard coating film.
  • Window film comprising any one of the hard coating film 1 to 7 above.
  • the image display device comprising the window film of the above eight.
  • Hard coating film according to the embodiments of the present invention it is possible to implement a touch feeling similar to glass with a low friction coefficient and excellent slip properties.
  • the hard coating film according to the embodiments of the present invention is significantly less static electricity generation, it is possible to prevent the adhesion of dust, to ensure a high yield during the bonding process, it is possible to prevent the occurrence of fire during processing.
  • the hard coating film according to the embodiments of the present invention may be excellent in flexibility and excellent hardness and scratch resistance.
  • Embodiments of the present invention include a base film and a hard coating layer formed on at least one surface of the base film, wherein the hard coating layer includes at least one of fluorine atoms and silicon atoms, and has a surface friction coefficient of 0.3 or less and a surface resistance.
  • This 10 8 to 10 12 ⁇ / ⁇ relates to a hard coat film that can be excellent in slip properties and significantly less generation of static electricity.
  • the hard coating layer includes at least one of fluorine atoms and silicon atoms, the surface friction coefficient is 0.3 or less, thereby improving the reliability, touch feeling and excellent slip properties to achieve a glass-like touch feeling It is possible to prevent the adhesion of dust due to the remarkably low static electricity generation, to ensure a high yield during the bonding process and to prevent the occurrence of fire during processing. If the surface friction coefficient exceeds 0.3, slip resistance is lowered and scratch resistance is lowered.
  • the surface resistance satisfies 10 8 to 10 12 ⁇ / ⁇ , when the surface resistance is less than 10 8 ⁇ / ⁇ mechanical properties such as pencil hardness is lowered, the surface resistance is 10 12 If ⁇ / ⁇ or more, the conductivity, anti-static properties are lowered due to the static electricity due to the inflow of foreign matter during the manufacturing process is significantly higher than the problem may occur such as yield.
  • the content of fluorine atoms or silicon atoms included in the hard coating layer can be achieved by adjusting the composition of the composition for forming another hard coating layer or the content ratio of the composition, solvent change, drying and curing conditions, and the like.
  • Hard coating film may include a hard coating layer formed by curing of the composition for forming a hard coating layer comprising an antistatic agent, a light-transmitting resin, a solvent and an initiator.
  • the antistatic agent (A) may include at least one selected from the group consisting of a fluorine antistatic agent and a silicon antistatic agent. Since the antistatic agent includes a compound having a fluorine atom or a silicon atom, embodiments of the present invention may include at least one of a fluorine atom and a silicon atom, and the surface friction coefficient of at least one side is 0.3 or less, thereby providing reliability, Improved touch feeling and excellent slipperiness can realize glass-like touch feeling, and due to the low static electricity generation, it prevents dust from attaching, secures high yield during the bonding process, and prevents fire during processing. .
  • the silicone antistatic agent may be a siloxane resin, or the like, and preferably, UVAS-364 (Jinbo), MORESTAT ES-4110 (Moire), or the like.
  • the concentration of at least one of the fluorine atom and the silicon atom according to the embodiment of the present invention is the center side of the cross section. May be higher outside.
  • At least one of the fluorine atom and the silicon atom may be preferable in terms of achieving a numerical range of the above-described effect coefficient of friction by having an outer side higher than the center side of the cross section. It is believed that this is because a large amount of fluorine atoms or silicon atoms contributes to the improvement of slip properties as they are disposed outside the hard coating layer.
  • Content of the antistatic agent according to an embodiment of the present invention is not particularly limited, for example, may be included in 1 to 20 parts by weight based on a total of 100 parts by weight of the composition for forming a hard coating layer, the present charging if the above range is satisfied The effect according to the inhibitor may be better.
  • Translucent resin (B) is photocurable resin
  • the said photocurable resin can be manufactured by condensation reaction of a photocurable (meth) acrylate oligomer and / or a monomer.
  • (meth) acryl- refers to "acryl-", “methacryl-”, or both.
  • photocurable (meth) acrylate oligomer epoxy (meth) acrylate, urethane (meth) acrylate, etc. can be used, for example, urethane (meth) acrylate is preferable.
  • Urethane (meth) acrylate can be manufactured by condensation reaction of the polyfunctional (meth) acrylate which has a hydroxyl group in a molecule
  • the (meth) acrylate having a hydroxy group in the molecule examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxyisopropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, and capro It may be selected from one or more selected from the group consisting of lactone ring-opened hydroxyacrylate, pentaerythritol tri / tetra (meth) acrylate mixture, and dipentaerythritol penta / hexa (meth) acrylate mixture.
  • the compound having an isocyanate group include 1,4-diisocyanatobutane, 1,6-diisocyanatohexane, 1,8-diisocyanatooctane, 1,12-diisocyanatododecane, 1, 5-diisocyanato-2-methylpentane, trimethyl-1,6-diisocyanatohexane, 1,3-bis (isocyanatomethyl) cyclohexane, trans-1,4-cyclohexene diisocyanate, 4,4 '-Methylenebis (cyclohexyl isocyanate), isophorone diisocyanate, toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, xylene-1,4-diisocyanate, tetramethylxylene-1, 3-diisocyanate, 1-chloromethyl-2,4-diisocyanate,
  • the monomer is usually used, having a unsaturated group such as a (meth) acryloyl group, a vinyl group, a styryl group, an allyl group, and the like in a photocurable functional group, and a (meth) acryloyl group is more preferred among them.
  • the monomer having a (meth) acryloyl group examples include neopentyl glycol acrylate, 1,6-hexanediol (meth) acrylate, propylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, Dipropylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylol ethane tri (meth) acrylate, 1 , 2,4-cyclohexane tetra (meth) acrylate, pentaglycerol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol tri (meth) acrylate , Dipentaeryth
  • the translucent resin can be prepared using at least one selected from the group consisting of the photocurable (meth) acrylate oligomers and monomers exemplified above.
  • the translucent resin according to an embodiment of the present invention may include a dendrimer compound.
  • a dendrimer compound By adding the dendrimer compound to the composition for forming the hard coat layer, it is possible to further improve the flexibility and hardness of the hard coat film or the hard coat layer.
  • the dendrimer compound may refer to a compound in which chains of molecules are regularly polymerized from the center to the outward direction.
  • the "generation" of the dendrimer compound refers to the step of growing the dendrimer structure, it is understood that one generation increases each time a unit structure that is constantly repeated with respect to the center of the molecule is added. For example, when the first generation branch terminal formed is subjected to the polymerization reaction again, the second generation becomes a second generation, and the repeated polymerization reaction proceeds.
  • the dendrimer compound may have a plurality of (meth) acrylate end groups, and may have a structure of two or more generations.
  • the end group of the dendrimer compound may be represented by the following formula (1).
  • R 5 may be a direct bond or an alkylene group having 1 to 6 carbon atoms
  • R 6 may be a hydrogen atom or a methyl group.
  • the dendrimer compound may be prepared through the following reaction route.
  • the following reaction route is provided to illustrate an example of a dendrimer compound having a (meth) acrylate end group of, for example, a third generation structure, and the dendrimer compound of the present invention should not be construed as being limited thereto.
  • the first generation dendrimer structure of condensation of DMPA is formed with TMP as the center, and the generation of dendrimer can be increased by repeatedly condensation polymerization of DMPA as a branched structure.
  • condensation polymerization of acrylic acid on the end group after the third generation can yield a dendrimer compound having a polyfunctional acrylate group at the end.
  • a polymerizable functional group is formed at the branch terminal of the dendrimer compound, and may have a structure of two or more generations. Accordingly, compared with a general polymerizable compound, since more polymerizable functional groups are contained relative to the unit molecular weight of the polymer, excellent hardness characteristics can be realized.
  • the dendrimer compound may have a second generation or third generation structure.
  • the number of polymerizable functional groups may be excessively increased, thereby lowering flexibility and curling characteristics.
  • the central portion of the polymer can secure appropriate flexibility and bending properties, thereby securing the hardness of the hard coating film or the hard coating layer and at the same time Properties and flexibility can be improved.
  • the dendrimer compound may be included in an amount of about 10 to 60 parts by weight, preferably about 15 to 55 parts by weight, in 100 parts by weight of the total composition for forming the hard coating layer.
  • desired flexible properties eg, flexibility and bending characteristics
  • the content of the dendrimer compound exceeds about 60 parts by weight, due to the above-described steric hindrance with the photocurable compound, the hardness may be reduced due to lack of curing.
  • the chemical formula representing the compound or resin means a representative chemical formula including the isomer.
  • the content of the translucent resin is not particularly limited, but may be 5 to 60 parts by weight based on 100 parts by weight of the total composition for forming the hard coating layer. When the content is satisfied, the hardness of the formed hard coating layer may be improved and curling may be reduced.
  • nano silica sol (C) may be added to further strengthen the hardness, and the content of the nano silica sol is not particularly limited, but is based on the nano silica sol having an average particle diameter (D 50 ) of 10 to 100 nm and a solid content of 40%
  • the hard coating layer may be included in an amount of 1 to 30 parts by weight based on 100 parts by weight of the total composition.
  • the photoinitiator (D) can be used without limitation as long as it is known in the art.
  • one or more selected from the group consisting of hydroxyketones, aminoketones, hydrogen decyclic photoinitiators, and combinations thereof can be used.
  • the photoinitiator is 2-methyl-1- [4- (methylthio) phenyl] 2-morpholinepropanone-1, diphenylketone, benzyldimethyl ketal, 2-hydroxy-2-methyl-1- Phenyl-1-one, 4-hydroxycyclophenyl ketone, 2,2-dimethoxy-2-phenyl-acetophenone, anthraquinone, fluorene, triphenylamine, carbazole, 3-methylacetophenone, 4-ke Noloacetophenone, 4,4-dimethoxyacetophenone, 4,4-diaminobenzophenone, 1-hydroxycyclohexylphenylketone, benzophenone, diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide and One or more types selected from the group consisting of these combinations can be used.
  • Such photoinitiator is used in the range of 0.1 to 10% by weight, preferably 1 to 5% by weight, based on 100 parts by weight of the total composition for forming the hard coat layer. If the content is less than the above range, the curing rate of the composition is slow and uncured, so that mechanical properties are lowered. On the contrary, if the content exceeds the above range, cracks may occur in the coating due to overcuring.
  • the solvent (E) according to the present invention can be used without particular limitation as long as it can dissolve or disperse the above components.
  • alcohols methanol, ethanol, isopropanol, butanol, propylene glycol methoxy alcohol, etc.
  • ketones methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, diethyl ketone, dipropyl ketone, etc.
  • Acetate-based methyl acetate, ethyl acetate, butyl acetate, propylene glycol methoxy acetate, etc.
  • cellosolve-based methyl cellosolve, ethyl cellosolve, propyl cellosolve, etc.
  • hydrocarbon-based normal hexane, normal heptane, benzene, toluene , Xylene, etc.
  • the content of the solvent (E) is not particularly limited, for example, it may be included in 30 to 90 parts by weight, preferably 40 to 70 parts by weight based on 100 parts by weight of the total composition for forming a hard coating layer. have.
  • the content range it is preferable to implement the appropriate coatability.
  • the viscosity is high, the coating property is lowered, if it exceeds 90 parts by weight, it is difficult to adjust the thickness of the coating film and dry stains may occur, appearance defects may occur.
  • composition for forming a hard coat according to the present invention may further include an additive (F) as necessary in addition to the above-described components, for example, a leveling agent, an ultraviolet stabilizer, a heat stabilizer, and the like.
  • an additive for example, a leveling agent, an ultraviolet stabilizer, a heat stabilizer, and the like.
  • the leveling agent is added to improve the smoothness and coatability of the coating film when the composition is applied, and a silicone leveling agent, a fluorine-based leveling agent, an acrylic leveling agent, and the like can be used.
  • a silicone leveling agent a fluorine-based leveling agent, an acrylic leveling agent, and the like
  • Commercially available products of the leveling agent include BYK-323, BYK-331, BYK-333, BYK-337, BYK-373, BYK-375, BYK-377, BYK-378, TEGO Glide 410, TEGO Glide 411, TEGO Glide 415, TEGO Glide 420, TEGO Glide 432, TEGO Glide 435, TEGO Glide 440, TEGO Glide 450, TEGO Glide 455, TEGO Rad 2100, TEGO Rad 2200N, TEGO Rad 2250, TEGO Rad 2300,
  • the sunscreen agent is added to prevent discoloration or brittleness of the surface of the coating film by continuous UV exposure, and serves to block or absorb UV light.
  • the UV stabilizers may be classified into absorbents, quenchers, and hindered amine light stabilizers (HALS) according to functional mechanisms. For example, phenyl salicylates (absorbers), Benzophenone (Benzophenone, absorbent), benzotriazole (Benzotriazole, absorbent), nickel derivative (quencher), radical scavenger, etc. are mentioned.
  • polyphenol-based, phosphite-based and lactone-based heat stabilizers may be used, and the UV stabilizer and the heat stabilizer may be used by mixing in an appropriate amount at a level that does not affect the UV curability.
  • the additives (F) is preferably used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total composition for forming a hard coat layer.
  • the hard coating layer-forming composition may be cured by applying the hard-coat layer-forming composition onto a base film.
  • the material of the base film may be used without limitation as long as it is a transparent polymer resin, and the base film may be, for example, triacetyl cellulose, acetyl cellulose butyrate, ethylene-vinyl acetate copolymer, propionyl cellulose, butyryl cellulose, acetyl propy O'Neill cellulose, polyester, polystyrene, polyamide, polyetherimide, polyacryl, polyimide, polyethersulfone, polysulfone, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, It may be a film formed of a polymer resin such as polyvinyl acetal, polyether ketone, polyether ether ketone, polyether sulfone, polymethyl methacrylate, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and polycarbonate.
  • the composition for forming a hard coating layer can realize excellent adhesion without deteriorating mechanical properties even for these substrate films.
  • the base film may be subjected to a surface treatment such as plasma treatment, corona treatment, etc. to improve adhesion to the hard coating layer.
  • a surface treatment such as plasma treatment, corona treatment, etc. to improve adhesion to the hard coating layer.
  • the hard coating layer is disposed closer to the viewer's side than the other layers.
  • the hard coating layer is formed by applying and curing the composition for forming a hard coating layer on the base film, the coating is a slit coating method, knife coating method, spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method , Roll coating method, wire bar coating method, dip coating method, spray coating method, screen printing method, gravure printing method, flexographic printing method, offset printing method, inkjet coating method, dispenser printing method, nozzle coating method, capillary coating method Known methods such as these can be used.
  • the thickness of the hard coating layer is not particularly limited, and may be, for example, 5 to 100 ⁇ m. When the thickness is in the above range, it shows excellent hardness and flexibility, and can prevent the curling phenomenon.
  • the hard coat film of the present invention has excellent hardness, flexibility, and curl characteristics, it can be usefully applied to a window film of an image display device.
  • the hard coating film alone or an additional layer known in the art may be laminated and used as the window film.
  • this invention provides the image display apparatus provided with the said hard coat film.
  • the hard coat film of the present invention is excellent in hardness and flexibility so that the hard coat film can be used, for example, as the outermost window film of the image display device, and particularly, can be preferably applied to the flexible image display device.
  • the image display device may be various image display devices such as a conventional liquid crystal display device, an electroluminescent display device, a plasma display device, and a field emission display device.
  • composition for forming a hard coating layer having a composition and content (parts by weight) described in Table 1 below.
  • A-1 lithium bisfluorosulfonylimide (LiFSI)
  • A-2 UVAS-364 (Jinbo)
  • A-3 lithium hexafluorophosphate (LiPF 6 )
  • A'-1 antimony tin oxide (ATO)
  • F-1 BYK307 (BYK Chemisa)
  • the composition for forming the hard coating layer on one side of the polyimide film (80um) and coating it to have a thickness of 10um After drying the solvent and irradiating UV accumulated light amount 500mJ, the other side of the polyimide film In the same manner, the coating was hardened to a thickness of 0.5 ⁇ m and dried, followed by UV curing to prepare a hard coat film.
  • the angle was measured with a sloped ball tack tester to evaluate the slip and similarity of touch with glass.
  • the inclined ball tack tester holds the test piece to be tested on the inclined plate on the inclined plate that can adjust the angle from 10 ⁇ to 40 ⁇ .
  • MCP-HT450 surface resistance measuring instrument
  • the coating film was fixed on the glass, and after evaluating five times with a pencil having each pencil hardness, the pencil hardness was expressed by hardness not to be scratched more than four times.
  • Example 4 the content of the antistatic agent (A) is less than the other examples, the friction coefficient was found to be slightly higher, the sloped ball test angle is higher,
  • Example 5 although the content of the light-transmissive resin (B) is less than other examples, the hardness of the hard coating layer is slightly lowered, although not shown in Table 2, it was confirmed that the HC film is relatively poor in appearance.
  • Example 6 the content of the light-transmissive resin (B) is higher than in other examples, although it is not shown in Table 2, but it was confirmed that curling was relatively increased.
  • Example 7 is a case in which the nano silica sol (C) is not included, it was confirmed that the hardness of the hard coating layer compared to other examples.
  • Comparative Example 4 is a comparative example in which an excessive amount of the antistatic agent (A) was added, and it was confirmed that the hardness of the hard coating layer was significantly lowered compared to other examples.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Optical Elements (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne un film de revêtement dur et, plus spécifiquement, comprend un atome de fluor et/ou un atome de silicium, a un coefficient de frottement de peau sur au moins un côté de 0,3 ou moins, et a une résistance de surface comprise entre 108 et 1012 Ω/□, ce qui permet d'obtenir un excellent glissement et de générer une quantité remarquablement faible d'électricité statique.
PCT/KR2017/012274 2017-02-24 2017-11-01 Film de revêtement dur et dispositif d'affichage d'image le comprenant WO2018155784A1 (fr)

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KR1020170024995A KR102031558B1 (ko) 2017-02-24 2017-02-24 하드 코팅 필름 및 이를 포함하는 화상 표시 장치
KR10-2017-0024995 2017-02-24

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CN112574454A (zh) * 2019-09-30 2021-03-30 Sk新技术株式会社 窗覆盖膜和包括其的柔性显示面板

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