KR20110125851A - Resin composition for manufacturing display card and a method for manufacturing display card - Google Patents
Resin composition for manufacturing display card and a method for manufacturing display card Download PDFInfo
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- KR20110125851A KR20110125851A KR1020100045462A KR20100045462A KR20110125851A KR 20110125851 A KR20110125851 A KR 20110125851A KR 1020100045462 A KR1020100045462 A KR 1020100045462A KR 20100045462 A KR20100045462 A KR 20100045462A KR 20110125851 A KR20110125851 A KR 20110125851A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
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- 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
- C08K5/17—Amines; Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
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- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Credit Cards Or The Like (AREA)
- Manufacturing & Machinery (AREA)
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The present invention relates to a resin composition for manufacturing a display card and a display card manufacturing method using the same, more specifically 18 to 56% by weight of a bisphenol F-type epoxy resin; Acrylic UV curable resin 35 to 65% by weight; 3 to 20% by weight of the amine curing agent; And it relates to a resin composition for producing a display card comprising a phthalic acid-based plasticizer 1.5 to 18% by weight and a display card manufacturing method using the same.
Description
The present invention relates to a resin composition for manufacturing a display card and a display card manufacturing method using the same, and more particularly, to a resin composition for manufacturing a display card that can be cured in a semi-cured state (B-stage) and a display card manufacturing method using the same. will be.
Recently, not only plastic cards such as transportation cards, access cards, cash cards and credit cards, but also electronic cards including various electronic components such as memory, IC chips, smart chips, flexible printed circuit boards, RFID, batteries, and displays are widely used. It is used.
Display cards that can display information such as balance of financial transactions and traffic card usage, including displays such as LCD and OLED, have also been developed and commercialized. An example of such a display card is a One Time Password (OTP) generation card.
The one-time password generation card is a display card that displays a different password every minute through the display unit instead of a fixed password in electronic banking transactions such as banking of the bank. The one-time password generation card has a credit card size or has a credit card function to complement the portability of the conventional token type one-time password generator.
The conventional manufacturing method of the display card is using the UV resin in the liquid form. For example, Korean Patent No. 10-0798685 discloses a display card by attaching a liquid crystal display unit, an IC chip, etc. to a processed edge by punching a synthetic resin sheet with a press, injecting a liquid UV resin into the edge, and curing the same using ultraviolet rays. Disclosed is a method of manufacturing.
However, since such a method uses a liquid UV resin, there is a problem that the surface of the card is contaminated and not only the defect rate of the process is high, but also the workability is reduced and the work time is long. In addition, since the thickness of the manufactured card is more than 1.0 mm does not meet the credit card and cash card standard thickness 0.68 ~ 0.84 mm (ISO standard) required for mass dissemination, there is a disadvantage that the mass distribution is difficult.
In addition, the UV resin used has a weak chemical resistance, so that semiconductor components such as electronic circuits and CPUs in the card are exposed to the outside, which may cause a big problem in security.
In another method, a side dam (border) is formed on a plastic substrate, and then an electronic component such as an IC chip or a display is mounted therein, and the remaining space is injected with a thermosetting resin, and then the IC chip and A card may be manufactured by thermocompressing a plastic substrate having a space on which a display is to be mounted.
However, if a constant pressure is applied at the top for thermal compression, the resin in the liquid state before hardening is pressed to cause a step, and in the process, various electronic components may be damaged by heat and pressure, which significantly lowers the process yield. There is a problem. In addition, there is a problem that the resin in the liquid state penetrates between the on / off button to interfere with the operation of the button.
The present invention was created in order to improve the above problems, and an object of the present invention is to cure in a semi-cured state (B-stage) to exhibit adhesiveness and to insert an electronic component embedded without a separate adhesive and lamination with surface paper. It is to provide a resin composition for manufacturing a display card that enables.
In addition, another object of the present invention by using the resin composition for manufacturing the display card display card to prevent contamination of the surface of the card, to improve the workability, and to minimize damage to the embedded electronic components that may occur in the curing process It is to provide a manufacturing method.
To this end, the resin composition for preparing a display card according to the present invention is
18 to 56 wt% bisphenol F type epoxy resin;
Acrylic UV Curing Resin 35 to 65% by weight
3 to 20% by weight of the amine curing agent; And
Phthalic acid-based plasticizer 1.5-18 wt%;
It includes.
In addition, the display card manufacturing method according to the present invention
S1) applying a resin composition for manufacturing a display card of claim 1 between two release films and then film-molding to prepare a pair of resin sheets, respectively;
S2) curing each of the prepared pair of resin sheets in a semi-cured state (B-stage);
S3) preparing a pair of semi-cured sheets by removing the release films on one surface of the semi-cured pair of resin sheets and laminating them with surface paper;
S4) removing the release film on one surface of the semi-cured sheet and arranging electronic components to prepare a lower substrate;
S5) forming a see-through hole in the other semi-cured sheet, and removing the release film on one surface to prepare an upper substrate;
S6) combining the lower substrate and the upper substrate with each other; And
S7) curing the bonded substrate by thermocompression bonding
It includes.
The resin composition for manufacturing a display card according to the present invention is excellent in chemical resistance and heat resistance, and can prevent leakage of information contained in embedded electronic components. In addition, it is cured in a semi-cured state (B-stage) to improve the card manufacturing workability, and minimize the pressure and heating temperature applied to the electronic components to prevent damage to the electronic components to minimize the defective rate.
1 is a flowchart of a manufacturing method of a display card according to the present invention.
2 to 9 are cross-sectional views showing the procedure of a display card manufacturing method according to the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.
In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to those shown in the drawings, and is shown by enlarging the thickness in order to clearly express various parts and regions. It was.
The resin composition for manufacturing a display card of the present invention exhibits a semi-cured (B-Stage) state by ultraviolet irradiation, and is then converted to a fully cured C-stage state by heating.
In particular, the adhesiveness in the semi-cured state (B-stage) allows the insertion of electronic products and lamination with surface paper without additional adhesive. In addition, it is excellent in heat resistance and chemical resistance to secure the security of the information contained in the embedded electronic component, and has the advantage of minimizing the defective rate by minimizing the pressure and heating temperature applied to the electronic component during curing.
Such a resin composition for manufacturing a display card of the present invention,
18 to 56 wt% bisphenol F type epoxy resin;
Acrylic UV Curing Resin 35 to 65% by weight
3 to 20% by weight of the amine curing agent; And
Phthalic acid-based plasticizer 1.5-18 wt%;
It includes.
Each composition is explained in more detail below.
First, the resin composition according to the present invention contains a bisphenol F type epoxy resin.
Bisphenol F-type epoxy resins are low viscosity and high reactivity resins and are excellent in compatibility with acrylic UV curable resins to be described later. In addition, there is an excellent low-temperature curing, chemical resistance, corrosion resistance and plasticity. In particular, the present invention uses a bisphenol F-type epoxy resin having an epoxy equivalent of 50 to 500 g / eq.
At this time, the content of the bisphenol F-type epoxy resin is preferably 18 to 56% by weight in the resin composition. If the content of the epoxy resin is less than the above range it is difficult to cure in the semi-cured state (B-stage) can not secure the moldability, on the contrary, if it exceeds the above range, the curing reaction is delayed, the step that occurs when the thermal compression There is this.
The acrylic UV curable resin may be any structure as long as it has a carbon-carbon double bond that can be cured by ultraviolet rays. Specifically, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, 2-hydroxyethyl (meth) acrylate, methyl (meth) acrylate, styrene monomer, glycidyl (meth) acrylate, isooctyl acryl Rate, stearyl methacrylate, dodecyl acrylate, decyl acrylate, vinyl acetate, acrylonitrile trimethylolpropane triacrylate, tetramethylol methane tetraacrylate, pentaerythritol hexaacrylate, pentaerythritol tetraacrylate, Dipentadierythritol monohydroxypentaacrylate, dipentaerythritol hexaacrylate, 1, 4-butylene glycol diacrylate, 1,6-hexanediol diacrylate, polyethylene glycol diacrylate, oligoester acrylate, etc. Can be used.
It is preferable that the content of the UV curable resin is 35 to 65% by weight. If the content is less than the lower limit, it is difficult to realize the semi-cured state by UV irradiation, and if the content exceeds the upper limit, the adhesiveness is excessive. There is a problem that the workability is reduced to increase.
In the present invention, the resin composition includes both a thermosetting resin and a UV curable resin, and if any one of them is more than necessary, it is difficult to realize a semi-cured state (B-stage) by UV irradiation as well as complete curing (C-stage). Proper proportions are important because they may not satisfy the required properties.
The amine curing agent of the present invention is used to cure the epoxy resin, and the epoxy resin is thermoset by reacting with the epoxy resin.
The amine curing agent may be an aliphatic amine curing agent, an alicyclic amine curing agent, an aromatic amine curing agent, or the like, and is not particularly limited in the present invention. Typically, 4,4'-diamino diphenyl sulfone (hereinafter referred to as DDS), 4,4'-diamino diphenyl methane, dicyandiamide (DICY), benzyldimethylamine, triethanolamine, triethylene tetramine, di Ethylenetriamine, triethyleneamine, dimethylaminoethanol, tetraethylene pentaamine, diethylaminopropylamine, tri (dimethylaminomethyl) phenol, isophorone diamine, metaxylene diamine, N-aminoethyl piperazine and the like are preferable. . These can be used individually or in combination of 2 or more types.
At this time, the content of the amine curing agent is preferably in the range of 3 to 20% by weight of the total resin composition. If the content of the curing agent is less than the above range is not sufficient curing, on the contrary, if it exceeds the above range, there is a problem that rapid curing occurs, the heat-curable water required properties can not be secured.
In the present invention, a plasticizer is used to improve the processability of the resin composition and to impart flexibility. The plasticizer can be used without limitation as long as it is conventionally used, and preferably a phthalic acid-based plasticizer is used. Typically, dimethyl phthalate, dibutyl phthalate, dioctyl phthalate, diethyl phthalate, diheptyl phthalate, dinonyl phthalate, diisodecyl phthalate, diundecyl phthalate, ditridecyl phthalate, butylbenzyl phthalate, ethylhexyl phthalate, diethyl phthalate 2-ethylhexyl adipate, dihexyl phthalate, dipentyl phthalate, dipropyl phthalate, dicyclohexyl phthalate, diisononyl phthalate, or butyllauryl phthalate can be exemplified.
It is preferable that such plasticizers be used in an amount of 1.5 to 18% by weight in the resin composition. If the content of the plasticizer is less than the above range, the final manufactured card is too hard and, on the contrary, if it exceeds the above range, radius by UV There is a problem that flows down before being implemented in a normalized state.
In addition, a pigment can be added and used in an appropriate amount as needed in the range which does not reduce the characteristic of the resin composition of this invention as needed.
Pigments are used to impart various colors and to control the flow of the composition, and all pigment types known in the art can be used. In this case, the amount of the pigment used is preferably 0.1 to 3% by weight in the resin composition. If the pigment is less than the lower limit, there is a problem in workability due to poor color expression and flowability, and in the case of exceeding the upper limit, the viscosity increases and the workability is lowered. do.
In addition, within the scope of not impairing the object of the present invention, if necessary, conventional additives such as adhesion promoters, dispersants, thixotropic agents, antifoaming agents, photopolymerization initiators, and the like may be further included.
The resin composition of the present invention may be prepared through a vacuum degassing process after sufficiently dispersing each of the components by using a mixing stirrer in a prescribed blending amount.
The resin composition for display card manufacture as mentioned above is used for display card manufacture.
1 is a flowchart of a manufacturing method of a display card according to the present invention.
Referring to Figure 1, the display card manufacturing method
S1) applying a resin composition for manufacturing a display card of claim 1 between two release films and then film-molding to prepare a pair of resin sheets, respectively;
S2) curing each of the prepared pair of resin sheets in a semi-cured state (B-stage);
S3) preparing a pair of semi-cured sheets by removing the release films on one surface of the semi-cured pair of resin sheets and laminating them with surface paper;
S4) removing the release film on one surface of the semi-cured sheet and arranging electronic components to prepare a lower substrate;
S5) forming a see-through hole in the other semi-cured sheet, and removing the release film on one surface to prepare an upper substrate;
S6) combining the lower substrate and the upper substrate with each other; And
S7) curing the bonded substrate by thermocompression bonding
It includes.
Each step will be described in more detail below.
2 to 9 are cross-sectional views showing the procedure of the display card manufacturing method according to the present invention.
Referring to FIG. 2, first, in step S1), the
3 is a cross-sectional view of the
As shown in FIG. 3, in the
Subsequently, referring to FIG. 4, in step S2), the front surface of the prepared resin sheet is irradiated with UV using the
Preferably, irradiation is performed for 20 to 30 seconds using an ultraviolet lamp having a light amount of 2500 to 3000 mmJ, a voltage of 250 to 275 V, and a current of 9.0 to 10.0 A.
Next, referring to Figure 5 after removing the release film on one surface of the semi-cured resin sheet is laminated with a
Subsequently, referring to FIG. 6, after removing the release film on one surface of the
Here, the electronic component to be inserted may vary depending on the type of card to be manufactured, and the details thereof are omitted since they are well known in the art.
For example, in the case of a credit card in which the one-time password generator and the IC card function are merged, the
At this time, since the resin
Next, referring to FIG. 7, the
Next, referring to FIG. 8, the
At this time, the
Finally, referring to FIG. 9, the bonded substrate is cured by thermocompression bonding.
The combined substrate is placed between the
At this time, the thermocompression is preferably performed for 120 to 240 minutes at a pressure of 15 to 30 kg / cm 2 at a temperature of 60 to 110 ℃. As described above, the present invention can minimize the damage to the components and the like present in the card because the semi-cured resin composition is completely hardened at a second temperature and pressure.
Example
Hereinafter, preferred examples and experimental examples of the present invention are described. The following examples and experimental examples are described for the purpose of more clearly expressing the present invention, but the contents of the present invention are not limited to the following examples and experimental examples.
Examples 1-3 and Comparative Examples 1-2
The resin compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were prepared using the compositions shown in Table 1 below.
(Kukdo Chemical, YDF-175S)
The resin composition thus prepared was applied between release films having a thickness of 50 μm, and then film molded through a roller to prepare a resin sheet. The prepared resin sheet was cured in a semi-cured state (B-stage) using an ultraviolet lamp with a light amount of 2500 mmJ, a voltage of 250 V, a current of 10 A, and an irradiation time of 30 seconds.
Subsequently, after removing the release film on one surface of the semi-cured resin sheet, the semi-cured sheet was prepared by laminating with a surface paper of PVC material having a thickness of 100 μm.
Next, after removing the release film on one side of the semi-cured sheet, an electronic component is disposed to prepare a lower substrate, and a perforation for IC chips is drilled on the surface of one surface of another semi-cured sheet, and the release film on one side is removed. The upper substrate was prepared.
The prepared lower substrate and the upper substrate were bonded to each other to have a thickness of 900 um using a milling machine. Thereafter, the bonded substrates were thermally pressed for 3 hours at a pressure of 15 kg / cm 2 at a temperature of 80 ° C. to completely cure, thereby obtaining a display card having a thickness of 820 um.
Experimental Example 1: Checking chemical resistance and heat resistance
Heat resistance
Each of the 100 display cards were manufactured and removed after performing an accelerated life test (PCT: 121 ° C., 2.1 atm) for 3 hours, immersed in acetone for 30 seconds, and observed whether the card swelled and peeled off. . The number of occurrences of swelling and peeling was described in the molecule, and the number of tests was described in the denominator.
(2) chemical resistance
The prepared card was soaked in toluene and treated with an ultrasonic bomber for 3 hours to observe whether the card was decomposed and peeled off.
As shown in Table 2, the display card made of the resin composition according to the present invention is excellent in both chemical resistance and heat resistance. Accordingly, the electronic component embedded in the card is exposed to the outside, thereby preventing the security problem of exposing the information.
100: resin sheet 110: resin composition
111: Display 112: on / off button
113: IC chip 114: CPU
115: thin film battery 120: release film
130: surface paper 200: UV lamp
300: semi-cured sheet 400: lower substrate
500: upper substrate 610: upper mold 620: lower mold
Claims (9)
Acrylic UV curable resin 35 to 65% by weight;
3 to 20% by weight of the amine curing agent; And
Phthalic acid-based plasticizer 1.5-18 wt%;
Resin composition for manufacturing a display card comprising a.
A resin composition for producing a display card, which further comprises 0.01 to 3% by weight of a pigment.
A resin composition for producing a display card, wherein the average epoxy equivalent is 50 to 500 g / eq.
Butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, 2-hydroxyethyl (meth) acrylate, methyl (meth) acrylate, styrene monomer, glycidyl (meth) acrylate, isooctyl acrylate, ste Aryl methacrylate, dodecyl acrylate, decyl acrylate, vinyl acetate, acrylonitrile trimethylol propane triacrylate, tetramethylol methane tetraacrylate, pentaerythritol hexaacrylate, pentaerythritol tetraacrylate, dipentadi Erythritol monohydroxypentaacrylate, dipentaerythritol hexaacrylate, 1, 4-butylene glycol diacrylate, 1,6-hexanediol diacrylate, polyethylene glycol diacrylate, oligoester acrylate and mixtures thereof Resin composition for a display card manufacturing that is one selected from the group consisting of.
4,4'-diamino diphenyl sulfone (hereinafter referred to as DDS), 4,4'-diamino diphenyl methane, dicyane diamide (DICY), benzyldimethylamine, triethanolamine, triethylene tetramine, diethylenetriamine , Triethyleneamine, dimethylaminoethanol, tetraethylene pentaamine, diethylaminopropylamine, tri (dimethylaminomethyl) phenol, isophorone diamine, metaxylene diamine, N-aminoethyl piperazine and mixtures thereof Resin composition for display card manufacturing is one selected from.
Dimethyl phthalate, dibutyl phthalate, dioctyl phthalate, diethyl phthalate, diheptyl phthalate, dinonyl phthalate, diisodecyl phthalate, diundecyl phthalate, ditridecyl phthalate, butylbenzyl phthalate, ethylhexyl phthalate, di-2- Ethyl hexyl adipate, dihexyl phthalate, dipentyl phthalate, dipropyl phthalate, dicyclohexyl phthalate, diisononyl phthalate, butyl lauryl phthalate, and a mixture thereof.
S2) curing each of the prepared pair of resin sheets in a semi-cured state (B-stage);
S3) preparing a pair of semi-cured sheets by removing the release films on one surface of the semi-cured pair of resin sheets and laminating them with surface paper;
S4) removing the release film on one surface of the semi-cured sheet and arranging electronic components to prepare a lower substrate;
S5) forming a see-through hole in the other semi-cured sheet, and removing the release film on one surface to prepare an upper substrate;
S6) combining the lower substrate and the upper substrate with each other; And
S7) curing the bonded substrate by thermocompression bonding
Display card manufacturing method comprising a.
Method of performing irradiation for 20 to 30 seconds using an ultraviolet lamp having a light amount of 2500 ~ 3000 mmJ, a voltage of 250 ~ 275 V, a current of 9.0 ~ 10.0 A.
The process is carried out for 120 to 240 minutes at a pressure of 15 to 30 kg / cm 2 at a temperature of 60 to 110 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020100045462A KR101097065B1 (en) | 2010-05-14 | 2010-05-14 | Resin composition for manufacturing display card and a method for manufacturing display card |
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| KR1020100045462A KR101097065B1 (en) | 2010-05-14 | 2010-05-14 | Resin composition for manufacturing display card and a method for manufacturing display card |
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| KR20110125851A true KR20110125851A (en) | 2011-11-22 |
| KR101097065B1 KR101097065B1 (en) | 2011-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015102149A1 (en) * | 2013-12-30 | 2015-07-09 | Kolon Industries, Inc. | Composition for forming resin layer and flexible display substrate using the same |
| KR102138682B1 (en) * | 2019-06-12 | 2020-07-28 | (주)비티비엘 | Method of manufacturing smart card with improved the quality and smart card thereof |
| KR102138684B1 (en) * | 2019-07-03 | 2020-07-28 | (주)비티비엘 | Method of manufacturing smart card with improved flatness and smart card thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180094224A (en) | 2017-02-15 | 2018-08-23 | 김성철 | A method of molding a card type printed circuit board |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6395124B1 (en) | 1999-07-30 | 2002-05-28 | 3M Innovative Properties Company | Method of producing a laminated structure |
| JP4351348B2 (en) | 2000-01-27 | 2009-10-28 | リンテック株式会社 | IC card manufacturing method having protective layer |
| JP2010026982A (en) | 2008-07-24 | 2010-02-04 | Sony Corp | Ic card |
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2010
- 2010-05-14 KR KR1020100045462A patent/KR101097065B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015102149A1 (en) * | 2013-12-30 | 2015-07-09 | Kolon Industries, Inc. | Composition for forming resin layer and flexible display substrate using the same |
| KR102138682B1 (en) * | 2019-06-12 | 2020-07-28 | (주)비티비엘 | Method of manufacturing smart card with improved the quality and smart card thereof |
| KR102138684B1 (en) * | 2019-07-03 | 2020-07-28 | (주)비티비엘 | Method of manufacturing smart card with improved flatness and smart card thereof |
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| Publication number | Publication date |
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| KR101097065B1 (en) | 2011-12-22 |
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