WO2013009055A2 - Pâte pour un revêtement de film et procédé de fabrication d'un film protecteur ayant une fonction de restauration à l'aide de la pâte - Google Patents

Pâte pour un revêtement de film et procédé de fabrication d'un film protecteur ayant une fonction de restauration à l'aide de la pâte Download PDF

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Publication number
WO2013009055A2
WO2013009055A2 PCT/KR2012/005416 KR2012005416W WO2013009055A2 WO 2013009055 A2 WO2013009055 A2 WO 2013009055A2 KR 2012005416 W KR2012005416 W KR 2012005416W WO 2013009055 A2 WO2013009055 A2 WO 2013009055A2
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WO
WIPO (PCT)
Prior art keywords
film
paste
coating
forming
curing agent
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PCT/KR2012/005416
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English (en)
Korean (ko)
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WO2013009055A3 (fr
WO2013009055A9 (fr
Inventor
정협화
정재협
Original Assignee
주식회사 마이크로인덱스
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Priority to CN201280034468.1A priority Critical patent/CN103814067A/zh
Publication of WO2013009055A2 publication Critical patent/WO2013009055A2/fr
Publication of WO2013009055A3 publication Critical patent/WO2013009055A3/fr
Publication of WO2013009055A9 publication Critical patent/WO2013009055A9/fr

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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
    • 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
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • 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
    • C08J7/08—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • 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
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes

Definitions

  • the present invention relates to a film coating paste and a method for manufacturing a protective film having a restoring function using the same, and more particularly, a protective film for protecting the screen by being attached to a screen of a display device using a film coating paste. It relates to a method for producing.
  • LCD liquid crystal display
  • the liquid crystal display device is widely used in the TV field, the notebook field, the computer field, the tablet PC field, the navigation field, etc. as the image quality is improved by the improvement of the liquid crystal material and the development of the fine pixel processing technology.
  • the LCD protective film is attached to the screen to protect the liquid crystal display device from them.
  • the LCD protective film may affect the image quality of the image displayed from the LCD when physical damage such as the scratch is repeatedly generated, it is preferable to replace the LCD protective film after a certain time of use.
  • Another object of the present invention to provide a protective film formed with a coating film using the paste formed above.
  • the film coating paste according to an embodiment of the present invention is a curing reaction and aging by blending a curing agent in a polymer synthetic resin solution containing a polymer resin having high oil absorption or elastic properties Forming a gel material having an elastic material by allowing the reaction to proceed, placing the gel material in a solvent containing a dispersing agent, and using a stirring apparatus to add the solvent containing the gel material.
  • a sol (Sol) material dispersed in the fine particles and may be prepared by a method comprising the step of blending a binder in the solvent is formed (Sol) material.
  • the polymer synthetic resin may include a polyurethane-based material.
  • the binder may include a polymer resin material having a carboxyl group (-COOH) or a hydroxyl group (-OH).
  • the binder may include a second curing agent such that the coating film has a form of a semi-reticulate-structure system including the carboxyl group or the hydroxyl group.
  • a method for producing a protective film having a restoring function is a curing agent in a polymer synthetic resin solution containing a polymer synthetic resin having high oil absorption or elastic properties Mixing the mixture to form a gel material having an elastic material by allowing the curing reaction and the aging reaction to proceed, placing the gel material in a solvent containing a dispersant, and putting the gel material
  • the coating film may be cured by providing a hot air drying system.
  • the coating film may be coated by a microgravure coating hot air drying line or a comma coating hot air drying line or a silkscreen hot air drying line method.
  • the coating film may be formed to a thickness of 6 to 60 ⁇ m.
  • the manufacturing method may further include forming an adhesive layer for attaching the film on the screen on the lower surface of the film.
  • the filtering of the paste may be further performed to remove fine particles having a size of more than 20 ⁇ m from the sol material. .
  • a liquid crystal protective film is formed by forming a coating film including fine particles having an elastic restoring force against an external force on an upper surface of the film.
  • a user of the LCD protective film for the LCD may not only solve the inconvenience of replacing the LCD protective film at any time, but also reduce the cost.
  • the LCD protective film may be applied and applied to the surface of any product that may cause physical damage such as the scratch in addition to the LCD.
  • FIG. 1 is a flowchart schematically showing a film coating paste according to an embodiment of the present invention and a method of manufacturing a liquid crystal protective film using the same.
  • FIG. 2 is a view for explaining the principle of restoration of the fine particles of the paste prepared by the flow chart of FIG.
  • FIG. 3 is a view for explaining a network structure system according to the curing reaction of the paste prepared by the flow chart of FIG.
  • FIG. 4 is a view schematically showing a liquid crystal protective film manufactured according to the order of FIG. 1 according to an embodiment of the present invention.
  • FIG. 1 is a flow chart schematically showing a film coating paste according to an embodiment of the present invention and a method for manufacturing a liquid crystal protective film using the same
  • Figure 2 is a restoration principle of the fine particles of the paste prepared by the flow chart of FIG. 3 is a view for explaining a network structure system according to the curing reaction of the paste prepared by the flow chart of FIG.
  • a curing agent is added to a polymer synthetic resin solution including a polymer synthetic resin having a high oil absorption property or an elastic property by a crosslinker through a stirring facility and a curing reaction. (Crosslinking) to form a gel (Gel) material (S10).
  • step S10 the blended polymer resin solution and the curing agent are aged for a predetermined time to form the gel material.
  • the aging process may be performed for about 1 to 24 hours at a temperature of about 40 to 80 °C.
  • the polymer synthetic resin may include a polyurethane-based material having high oil absorption properties or elastic properties.
  • the polyurethane-based polymer synthetic resin is highly oil-absorbing, it is resistant to moisture and excellent in weather resistance against external environmental changes, and thus may contribute to securing stability of the LCD protective film manufactured by the present method.
  • the polymer synthetic resin may include at least one of an acrylic resin, an polyester resin, an epoxy resin, a polystyrene resin, and a polyurethane resin having an elastic property.
  • the polymer synthetic resin solution may include about 10 to 60% by weight of solids including the polymer synthetic resin to form the gel material. If the solid content is contained in the polymer synthetic resin solution is less than about 10% by weight, it is not preferable that the gelling ratio is too low, and if it is contained in excess of 60% by weight, the viscosity is too high when mixing This is because the operation is not easy and the probability of a defect occurring in the formation of the gel material is very high. In addition, the polymer synthetic resin solution more preferably has a solid content of about 20 to 40% by weight.
  • Table 1 below is experimental data showing the oil absorption and stickiness (adhesiveness) characteristics according to the content of the core monomer of the polymer synthetic resin forming the gel (Gel) material.
  • Table 1 shows methylisocyanate, ethylene glycol (Ethylenglycol), isoprondiamine (Isophronediamine), and triethylenediamine (Polymerization), respectively, while varying the mol (Mol) content.
  • Experimental data showing changes in oil absorption and stickiness.
  • Table 2 is experimental data showing the characteristics of the gel reaction and stickiness according to the change of the curing agent content for the polymer synthetic resin solution containing the polymer synthetic resin made by the synthesis of Table 1.
  • the gel material can be formed by adding the curing agent.
  • the stickiness can also be adjusted according to the content of the curing agent.
  • the curing agent When the curing agent is blended in less than 100: 1 ratio compared to the polymer synthetic resin solution, some of the solids are not preferable because the curing reaction is not preferable, and when the mixture is mixed in excess of about 100: 10 ratio from the gel Due to the rapid hardening reaction in the process of forming the (Gel) material, since the probability of the occurrence of defects during the formation of the sol (Sol) material is very high, it is preferable to be incorporated in the polymer synthetic resin solution at a ratio of about 100: 1 to 10. . In addition, the curing agent is more preferably blended in the polymer synthetic resin solution in a ratio of about 100: 2 to 5.
  • the curing agent may include an isocyanate material when the polymer synthetic resin solution includes a polyurethane-based polymer resin.
  • the curing agent may include an aziridine-based material.
  • the aziridine-based curing agent like the isocyanate-based curing agent, the higher the content, the faster the reaction rate to form the gel (Gel) material while reducing the stickiness may be a cause of failure when forming the sol (Sol) material.
  • the reaction rate at which the gel material is formed may be slower and more stable than the isocyanate curing agent.
  • the smaller the content of the aziridine-based curing agent the slower the reaction rate at which the gel (Gel) material is formed and at the same time, the stickiness is severely generated, and the more severe the gel material may not be formed. Accordingly, the aziridine-based curing agent, like the isocyanate-based curing agent, should control the reaction rate and stickiness at which the gel material is formed by controlling the appropriate content.
  • the curing agent preferably contains an isocyanate curing agent and an aziridine curing agent when the polymer synthetic resin solution contains a polyurethane polymer resin.
  • the gel material is added to a solvent containing a dispersant (S20).
  • the solvent may be coated on the upper surface of the film to provide a fluidity and solids control function of the paste prepared by the method, and then volatilized and removed in a hot air drying system.
  • the solvent may include ethyl acetate (Ethylacetate) to be easily removed in the hot air drying process while providing fluidity smoothly.
  • Ether acetate ethyl acetate
  • Such a solvent may be prepared in the same proportion as the polymer synthetic resin solution.
  • the gel material mixed with the solvent is stirred using a homomixer and a stirrer to form a sol material dispersed into the microparticles 10, for example, microparticles (S30).
  • the size of the fine particles 10 exceeds about 20 ⁇ m, the fine particles 10 may function as impurities during coating on the upper surface of the film. Therefore, the size of the fine particles 10 is preferably about 20 ⁇ m or less.
  • the fine particles 10 have an elastic restoring force against an external force.
  • the microparticles 10 may have spherical or similar non-spherical shapes to have elastic restoring force in all directions.
  • the force (F) when a force (F) is applied from the outside to the fine particles 10 as shown in Figure 2, the force (F) can be shrunk while absorbing the force, the fine particles 10, again after a few seconds Alternatively, after a few minutes, the fine particles 10 may be restored to their original state by the elastic restoring force.
  • the scratch when the scratch is generated by applying the force (F) to the coating film formed by the paste including the fine particles 10, the scratch can be restored to the original state by the elastic restoring force.
  • the fine particles 10 may preferably have a sol material having a size of about 20 ⁇ m or less.
  • the ultrasonic wave may be provided while stirring through a homomixer and a stirrer to disperse the gel material.
  • the gel material can be more efficiently dispersed. have. Accordingly, by performing the S30 step, it is possible to form a stable colloidal (Sol) material.
  • a paste is formed by blending the binder 20 with the sol material in which the fine particles 10 are dispersed (S40).
  • the binder 20 has a function of attaching the fine particles 10 to the film by having a network structure system according to a curing reaction when forming a coating film on the film through the paste prepared by the method. It can improve the surface hardness while removing the stickiness, and can perform the function of reinforcing the physical properties of the fine particles (10).
  • Such a binder may typically be made of a polymer acrylic resin material or a polyurethane-based material.
  • the binder 20 may include a resin material having a carboxyl group (-COOH) or a hydroxyl group (-OH).
  • the binder 20 may include a urethane resin or an acrylic resin having the carboxyl group or the hydroxyl group.
  • a second curing agent may be added to react with the carboxyl group or the hydroxyl group of the binder 20 to have a network structure system shape.
  • reference numeral “20” in FIG. 3 indicates a binder chain (Macromolecula Binder Chain) in the network system, and “10” indicates microparticles intertwined inside the network system.
  • the second curing agent may include an aziridine-based material.
  • the coating film may have a rigid structure, that is, a hardness of about 1H or more based on the pencil hardness, and thus, the coating film may have a structure stable to external impact.
  • the binder 20 is not preferable because it is difficult to provide sufficient adhesion with the film, and may be mixed in excess of about 100: 20. In this case, it is not preferable because it reduces the elastic restoring properties by reducing the proportion of the fine particles (10). Therefore, the binder 20 is preferably mixed at a ratio of about 100: 5 to 20 relative to the sol material. In addition, the binder 20 is more preferably mixed at a ratio of about 100: 8 to 10 compared to the sol (Sol) material.
  • the second curing agent is preferably added at a ratio of about 100: 5 or less relative to the binder 20 so as not to be unnecessarily wasted while having a desirable network structure system from the carboxyl group.
  • the second hardener is more preferably added at a ratio of about 100: 3 relative to the binder 20.
  • the paste is filtered using a cartridge filter to remove the fine particles 10 having a predetermined size or more (S50). This is to uniformly form the coating film surface of the upper surface of the film formed from the paste.
  • the fine particles 10 since the fine particles 10 having a size exceeding about 20 ⁇ m are not preferable because the thickness of the coating film is uniform and it is difficult to achieve excellent leveling, the fine particles 10 may have the size in the range of about 20 ⁇ m or less. It is desirable to filter the particles 10.
  • the step S50 is described as being performed after mixing the binder 20. However, the step S50 may be performed after forming the fine particles 10 of the step S30. Through these steps, a paste is prepared.
  • the paste filtered by filtering the fine particles 10 is coated on the upper surface of the film to form a coating film (S60).
  • the coating film may be a comma coating-hot air drying system or a microgravure-hot air drying system.
  • the coating film may be formed by applying a kiss roll coating method, a slot die coating method, a silk screen coating method, or the like. Thereafter, by forming an adhesive layer on the surface opposite to the coating film of the film to be attached to the screen of the liquid crystal display device, the manufacturing of the LCD protective film can be completed.
  • the adhesive layer may be a silicone pressure sensitive adhesive and an acrylic pressure sensitive adhesive having a wetting property.
  • a LCD protective film for protecting the screen of the LCD may be manufactured.
  • the protective film is limited to the LCD protective film for protecting the screen of the LCD, but the protective film may also include a film for protecting the screen of other types of display devices.
  • FIG. 4 is a view schematically showing a liquid crystal protective film manufactured according to the procedure of FIG. 1 according to an embodiment of the present invention.
  • the LCD protective film 100 includes a film 200 and the coating film (300).
  • the film 200 may use any one of polyethylene terephthalate, biaxially oriented polypropylene, and polycarbonate.
  • the film 200 may have a thickness of about 30 to 250 ⁇ m.
  • the film 200 serves as a base material of the LCD protective film 100, and when the thickness thereof is less than about 30 ⁇ m, it is too thin to play a role as a base material. It is because it is not preferable to exceed the flexible property because it is difficult to utilize the flexible characteristics as a film.
  • the coating film 300 is formed on the upper surface of the film 200 to be transparent or opaque.
  • the coating film 300 is formed by coating a paste prepared according to the flowchart in FIG. 1 on the top surface of the film 200.
  • the coating film 300 is coated on the upper surface of the film 200 by using a microgravure coating machine or a comma coating machine, etc. at a speed of about 3 to 15m / s, and then included in the paste In order to remove the solvent it is formed by performing a hot air drying at a temperature of about 100 °C through a hot air drying line and at the same time thermosetting.
  • the paste of the coating film 300 is cured in the above process, a harder layer may be formed while having a network structure system.
  • the liquid crystal protective film 100 having the coating film 300 is wound in the form of a film roll.
  • the time for curing the paste to form the coating film 300 is preferably performed within about 5 minutes. If the curing time exceeds about 5 minutes, there is a workability problem and shrinkage deformation of the LCD protective film 100 may occur.
  • the coating film 300 thus formed may be attached to the film 200 with excellent adhesion while not only having sufficient elastic restoring force but also having a surface hardness of about 1H or more based on the pencil hardness.
  • the coating film 300 is not so thin when the thickness t is less than about 6 ⁇ m, so that the fine particles of the coating film 300 may be damaged by the scratch. It is not preferable because it is too thick to unnecessarily increase the overall thickness of the LCD protective film 100. Therefore, the thickness t of the coating film 300 is preferably about 6 to 60 ⁇ m. In addition, the coating film is more preferably 10 to 40 ⁇ m.
  • the LCD protective film 100 is attached to the screen of the liquid crystal display device to the coating film protective film 400 for protecting the coating film 300 on the upper surface of the coating film 300 and the lower surface of the film 200.
  • the adhesive layer 500 and the lower surface of the adhesive layer 500 may further include a release film 600 for protecting the adhesive layer 500.
  • the LCD protective film 100 when the LCD protective film 100 is attached to the screen of the LCD, physical damage such as scratch is recovered, and thus may be used semi-permanently unless chemical damage occurs.
  • the user of the LCD protective film 100 can not only solve the inconvenience of frequently replacing the LCD protective film 100, but can also expect a cost reduction.
  • the coating film prepared using the paste can be widely applied to the general protective film as well as the liquid crystal protective film.
  • a second curing agent is added to the curing reaction
  • the paste is formed by stirring sufficiently for 6 hours to form a network system through the filter, and the paste is filtered by a cartridge filter.
  • the paste described in the above embodiment was coated on the upper surface of the polyethylene terephthalate-based film in a microgravure coating line at a line speed of 3 m / min, and then the paste was set at a temperature of 80 ° C. in a hot air drying line. Hot air was cured while passing through to prepare a liquid crystal protective film having a coating film having a thickness of 10 ⁇ m, 20 ⁇ m, and 30 ⁇ m on the upper surface of the film.
  • the second paste was coated at a line speed of 3 m / min on the upper surface of the polyethylene terephthalate-based film.
  • the second paste was hot air cured while passing through a hot air drying line set at a temperature of 100 ° C. to prepare a liquid crystal protective film having a coating film having a thickness of 10 ⁇ m, 20 ⁇ m, and 30 ⁇ m on the upper surface of the film.
  • the coating film in Comparative Examples 1 and 2 can be easily damaged by the external impact due to the sticky sticky, it was confirmed that it can not be used for coating on the upper surface of the film.
  • the coating film in the embodiment is a slight difference in the time to restore first depending on the thickness of the coating film as shown in the photos of Figures 5 to 7 showing the scratch experiment process through this, all scratches are restored to remove On the other hand, in Comparative Examples 1 and 2 it was confirmed that the scratch formed on the coating film is not restored.
  • the liquid crystal protective film prepared according to the embodiment of the present invention can be restored to its original state through elastic restoring force while having a stable curing reaction and physical damage such as scratch.
  • the LCD protective film may be prepared by forming a coating film using a paste including fine particles having an elastic restoring force on an upper surface of the film.
  • the scratches may be naturally removed by themselves by the elastic restoring force of the microparticles and restored to the original state.
  • the LCD protective film when the LCD protective film is attached to the screen of the LCD, physical damage such as scratches can be naturally healed, and thus can be used semi-permanently unless chemical damage occurs. Accordingly, the LCD protective film In addition to eliminating the inconvenience of frequently replacing the cost can be reduced accordingly.
  • the LCD protective film may be preferably used in various products in which physical damage such as the scratch may occur in addition to the LCD.

Abstract

Selon la présente invention, une pâte pour un revêtement de film et un film protecteur ayant une fonction de restauration à l'aide de la pâte sont fabriqués par un procédé consistant à : mélanger un durcisseur dans une solution de résine synthétique polymère comprenant une résine synthétique polymère qui a des propriétés élevées d'absorption d'huile ou des propriétés élastiques, puis permettre une réaction de durcissement et une réaction de vieillissement de manière à former une matière de gel ayant une matière élastique ; placer la matière de gel dans un solvant contenant un dispersant ; fournir, à l'aide d'une installation d'agitation, des ondes ultrasonores et un moyen de refroidissement au solvant dans lequel la matière de gel est placée, de manière à former une matière de sol dans laquelle des microparticules sont dispersées ; mélanger un liant dans le solvant, dans lequel la matière de sol est formée, de manière à former une pâte ; et revêtir la surface supérieure d'un film par la pâte formée de manière à former une couche de revêtement.
PCT/KR2012/005416 2011-07-13 2012-07-09 Pâte pour un revêtement de film et procédé de fabrication d'un film protecteur ayant une fonction de restauration à l'aide de la pâte WO2013009055A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280034468.1A CN103814067A (zh) 2011-07-13 2012-07-09 涂膜用浆料及利用其制造具有恢复功能的保护膜的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110069407A KR101122922B1 (ko) 2011-07-13 2011-07-13 필름 코팅용 페이스트 및 이를 이용하여 복원 기능을 갖는 보호필름을 제조하는 방법
KR10-2011-0069407 2011-07-13

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WO2013009055A2 true WO2013009055A2 (fr) 2013-01-17
WO2013009055A3 WO2013009055A3 (fr) 2013-04-04
WO2013009055A9 WO2013009055A9 (fr) 2013-05-02

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WO2014113617A1 (fr) 2013-01-21 2014-07-24 Innovative Finishes LLC Composant restauré, dispositif électronique le contenant et procédé de restauration d'un composant d'un dispositif électronique
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