[go: up one dir, main page]

WO2016052989A1 - Feuille de plastique transparente - Google Patents

Feuille de plastique transparente Download PDF

Info

Publication number
WO2016052989A1
WO2016052989A1 PCT/KR2015/010303 KR2015010303W WO2016052989A1 WO 2016052989 A1 WO2016052989 A1 WO 2016052989A1 KR 2015010303 W KR2015010303 W KR 2015010303W WO 2016052989 A1 WO2016052989 A1 WO 2016052989A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
transparent plastic
plastic sheet
sheet
resin layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/010303
Other languages
English (en)
Korean (ko)
Inventor
두준길
심상화
조춘성
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kolon Industries Inc
Original Assignee
Kolon Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kolon Industries Inc filed Critical Kolon Industries Inc
Priority to CN201580052891.8A priority Critical patent/CN106687290A/zh
Priority to JP2017517319A priority patent/JP6500097B2/ja
Priority to US15/514,849 priority patent/US20170210104A1/en
Priority claimed from KR1020150137343A external-priority patent/KR102290456B1/ko
Publication of WO2016052989A1 publication Critical patent/WO2016052989A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells

Definitions

  • the present invention relates to a transparent plastic sheet, and more particularly to a multi-layered plastic sheet useful as a cover sheet for front protection of a display.
  • a glass material has been used as a display material of an electrode substrate for a liquid crystal display panel, a plasma display panel, an electroluminescent fluorescent display tube, or a light emitting diode.
  • glass is fragile and has a large specific gravity, so it is limited to pursue thinness and lightness, and it is not suitable for implementing a flexible display. Accordingly, transparent plastic materials that can replace glass materials are attracting attention. Plastic materials are light and difficult to break, and manufacturing costs can be reduced, so it is expected to be very competitive when replacing existing glass materials.
  • a protective cover sheet that is, a window sheet, which is located at the outermost part of these display devices, is to be replaced with a plastic material.
  • PC is excellent in transparency, impact resistance, heat resistance, processing degree of freedom and light weight, so it is not only for meter cover and liquid crystal display cover of electric and electronic devices, but also for automobiles such as window glass, sunroof and instrument cover, roofing material and window glass for mining. It is also applied to building materials.
  • the plastic sheet showing the most stable physical properties is known as a sheet having a laminated structure of PC and PMMA.
  • the laminated sheet of PC and PMMA has achieved some degree of transparency, surface hardness, durability and heat resistance, high strain, low light resistance and surface properties in a high temperature and high humidity environment still remain a challenge.
  • the present invention is to provide a transparent plastic sheet of a multi-layer structure with a minimum strain in a high temperature and high humidity environment.
  • a preferred embodiment according to the present invention comprises a support layer comprising a polycarbonate-based resin layer, and a polymethyl methacrylate-based resin layer having a glass transition temperature of 120 to 135 ° C. as a surface layer on the support layer, wherein the polymethyl meth
  • the acrylate resin layer has a thickness of 5 to 20% of the total sheet thickness and provides a transparent plastic sheet having a transmittance of 89 to 94% based on ASTM D1003.
  • the support layer according to the embodiment has a single layer structure made of a polycarbonate resin layer; Or a multi-layered structure including a polymethyl methacrylate-based resin layer having a glass transition temperature of 120 to 135 ° C between two polycarbonate-based resin layers and the two polycarbonate-based resin layers.
  • the polymethyl methacrylate-based resin layer located between the layers may be 5 to 20% of the total thickness of the sheet.
  • the transparent plastic sheet may have a water absorption of 0.15 to 0.2% based on a temperature of 35 ° C and a relative humidity of 97%, and a dimensional strain rate of 0.2 to 0.25% based on a temperature of 65 ° C and a relative humidity of 90%. have.
  • the surface hardness of the surface of the polymethyl methacrylate-based resin layer as the surface layer may be H-2H as a pencil hardness based on ASTM D3363.
  • the transparent plastic sheet according to the embodiment may have a flexural modulus of 1.6 to 2.3 GPa based on ASTM D790.
  • the transparent plastic sheet may have a warpage change of 0.0 to 0.5 mm based on a 72 hour standing condition at a temperature of 85 ° C. and a relative humidity of 85%.
  • the transparent plastic sheet of the present invention deformation can be minimized at high temperature and high humidity conditions, and it can be popularized as a front protective cover sheet by replacing glass in various display products.
  • PC layer a polycarbonate-based resin layer
  • PMMA layer polymethylmethacrylate-based resin layer
  • a support layer comprising a polycarbonate-based resin layer, and a polymethyl methacrylate-based resin layer having a glass transition temperature of 120 to 135 °C as a surface layer on the support layer, wherein the polymethyl meth
  • the acrylate resin layer can provide a transparent plastic sheet whose thickness is 5 to 20% of the total sheet thickness.
  • the "transparent" in the present invention means that the light transmittance is 89% or more based on ASTM D1003
  • the plastic sheet may be a transparent plastic sheet having a transmittance of 89 to 94% have.
  • the glass transition temperature is a value measured using Dynamic Mechanical Analysis (DMA), and specifically, a temperature at which a maximum value of a loss modulus (E ′′) measured by DMA is shown. This value is defined as the glass transition temperature, which is more accurate because the error range is smaller than the temperature value measured by general differential scanning calorimetry (DSC).
  • DMA Dynamic Mechanical Analysis
  • the PC layer is meant to include a polycarbonate resin, wherein the polycarbonate resin, for example, aromatic dihydroxy compound alone or aromatic dihydroxy compound and a small amount of polyhydroxy compound and phosgene It may be obtained by the interfacial polymerization method, or may be a linear or branched polycarbonate resin produced by transesterification of an aromatic dihydroxy compound with a diester of carbonic acid.
  • the polycarbonate resin for example, aromatic dihydroxy compound alone or aromatic dihydroxy compound and a small amount of polyhydroxy compound and phosgene It may be obtained by the interfacial polymerization method, or may be a linear or branched polycarbonate resin produced by transesterification of an aromatic dihydroxy compound with a diester of carbonic acid.
  • the molecular weight of the polycarbonate-based resin is not limited thereto as long as the sheet can be produced by conventional extrusion molding, but the weight average molecular weight is preferably 10,000 to 200,000, more preferably 40,000 to 80,000.
  • the polycarbonate resin may be a glass transition temperature of 140 to 150 °C, may have a refractive index of 1.55 to 1.60.
  • the polycarbonate-based resin may include various additives generally used. Examples of possible additives include antioxidants, colorants, ultraviolet absorbers, light diffusing agents, flame retardants, mold release agents, lubricants, antistatic agents, and dye pigments. However, it is not limited thereto.
  • the glass transition temperature of the PMMA layer is controlled.
  • Increasing the glass transition temperature can ultimately prevent degradation of thermal properties due to moisture, thereby ultimately reducing strain under high temperature and high humidity conditions.
  • Part of increasing the glass transition temperature of the PMMA layer is a method of improving the heat resistance by forming a crosslinked structure in the polymer chain, but the method is not limited. At this time, by controlling the degree of crosslinking in the polymer chain can be adjusted to the intended degree of glass transition, of course.
  • the PMMA layer of the present invention has a glass transition temperature of 120 to 135 ° C.
  • the polymethyl methacrylate resin having a glass transition temperature in the above range (hereinafter, abbreviated as 'PMMA resin') is, for example, a resin composition comprising a styrene monomer, methyl methacrylate, and maleic anhydride.
  • the obtained copolymer can be mentioned, As a specific example, it can be obtained by superposing
  • the PMMA resin layer thus obtained shows a significantly higher glass transition temperature than the conventional PMMA resin, for example, the methyl methacrylate homopolymer having a glass transition temperature of 100 to 110 ° C.
  • the glass transition temperature of the PMMA layer as the surface layer is lower than 120 ° C.
  • the glass sheet has a large influence on moisture, and as a result, the difference in the strain of each layer is large, and as a result, the reliability of the final sheet may be significantly reduced.
  • PMMA layer having the above glass transition temperature range is 0.15 to 0.2% based on the moisture absorption rate of 35 °C and 97% relative humidity conditions, 0.2 to 0.2% based on the dimensional strain 65 °C and 90% relative humidity conditions It is possible to provide a transparent plastic sheet representing 0.25%.
  • Such PMMA layer may be included as a surface layer, the thickness of which is preferably 5 to 20% of the total sheet thickness. If the thickness of the PMMA layer as the surface layer is less than 5% of the total sheet thickness, the hardness is lowered, which is not preferable.
  • the PMMA layer having a high glass transition temperature may be included in the support layer including the PC layer as well as the surface layer, which will be described in more detail with respect to the structure of the transparent plastic sheet.
  • the support layer is a single layer structure composed of a PC layer as shown in FIG. 1 or a multilayer including a PMMA layer having a glass transition temperature of 120 to 135 ° C between two PC layers and the two PC layers as shown in FIG. It can consist of a structure.
  • the sheet structure is relatively symmetrical, and thus the support layer is more curved than the case of the single layer structure composed of only PC layers. Deformation such as distortion can be further minimized.
  • forming the sheet in a structure of four or more layers is not only difficult to manufacture, but also lowers the ratio of PC, so that impact strength may be lowered and the meaning of improved reliability may be diluted. It may be desirable.
  • the PMMA layer included in the base layer also preferably includes PMMA resin having a glass transition temperature of 120 to 135 ° C. like the surface layer, but having a glass transition temperature lower than the above range.
  • the resin is highly influenced by moisture, and this causes a large difference in the strain of each layer, and as a result, the reliability of the final sheet may be significantly reduced.
  • the thickness of the PMMA layer included in the support layer is preferably 5 to 20% of the total sheet thickness in terms of optimizing the hardness and reliability, and in order to stably improve the impact strength PC layer on the bottom layer of the bottom layer of the sheet It is preferable that this be formed.
  • the transparent plastic sheet includes a PMMA layer having a high glass transition temperature in the surface layer, whereby the surface hardness in the surface layer direction based on ASTM D3363 may satisfy H to 2H as a pencil hardness. .
  • the transparent plastic sheet may satisfy the flexural modulus of the ASTM D790 standard of 1.6 to 2.3 GPa.
  • the surface hardness is B to 2B and the flexural modulus is 1 to 1.6, but the surface hardness and the bending strength are respectively H to 2H and 1.6 to 2.3 as the surface layer includes the PMMA resin layer having a high glass transition temperature. Can be improved.
  • the transparent plastic sheet may have a degree of warpage of 0.0 to 0.5mm under 72 hours standing conditions at a temperature of 85 °C and a relative humidity of 85%.
  • the transparent plastic sheet according to the present invention is applied as a display front protective sheet, that is, a window cover, it may be very meaningful to exhibit the warpage change.
  • the window cover sheet whose surface layer is a PMMA layer has a high degree of warpage of 1 mm or more under the same conditions, so that the deformation and defects of the device are very high.
  • the transparent plastic sheet according to the present invention has a temperature of 85 ° C. and 85% The change rate is low even when exposed to the environment of high temperature and high humidity with relative humidity, thereby improving the reliability of the final product.
  • the transparent plastic sheet of the present invention may further laminate a hard coat layer cured by thermosetting or active energy rays to improve scratch resistance on the surface layer.
  • a hard coat layer cured by thermosetting or active energy rays to improve scratch resistance on the surface layer.
  • the resin used for forming the hard coat layer any one selected from among those marketed as a hard coat agent in consideration of appropriateness with a coating line can be selected.
  • an ultraviolet absorber Various stabilizers, such as a light stabilizer and antioxidant, a surfactant, such as a leveling agent, an antifoamer, a thickener, an antistatic agent, and an antifog additive, etc. can be added suitably.
  • the transparent plastic sheet of the multilayer structure including the support layer including the PC layer and the PMMA layer as a surface layer thereon may be manufactured by coextrusion.
  • the extruder for co-extrusion is composed of a main extruder for extruding the support layer and a sub-extruder constituting the surface layer, the sub-extruder is preferably adopted smaller than the main extruder.
  • the temperature conditions of the main extruder is usually 230 to 290 °C, preferably 240 to 280 °C
  • the temperature conditions of the sub-extruder may be 220 to 270 °C, preferably 230 to 260 °C, to remove foreign substances in the resin It may be desirable to install a polymer filter upstream from the die of the extruder in order to, but is not limited to such.
  • die temperature it is 250-320 degreeC, Preferably it is 270-300 degreeC, As a forming roll temperature, it is 100-190 degreeC normally, Preferably it is 110-180 degreeC, However, if it is a normal coextrusion method, it is not limited to this. .
  • the thickness of each layer can be controlled by controlling the speed of the main extruder and the sub-extruder.
  • the surface layer which is a PMMA layer
  • Polycarbonate resin (LG chemistry) having a glass transition temperature of 147 °C and PMMA resins having a glass transition temperature of 129 ° C. (Styrene 15 to 70%, Methylmethacrylate 25 to 80% and Maleic anhydride 5 to 50% terpolymer copolymer PMMA resins) were prepared, respectively.
  • the polycarbonate resin prepared above was put into the extruder which forms a support layer
  • PMMA resin was put into the extruder which forms a surface layer
  • two types of resins were melt-extruded simultaneously.
  • the temperature in the die pad was set to 270 and 245 ° C., respectively, and the resin laminated and integrated in the die was led through three polishing rolls in a horizontal batch with mirror finish.
  • the temperature of the first roll is set to 100 °C
  • the second roll is set to 130 °C
  • the temperature of the third roll is set to 120 °C
  • Examples 2 and 3 were prepared using the same method as in Example 1, except that a three-way PMMA resin having a glass transition temperature of 120 ° C. and a three-way copolymer PMMA resin having a temperature of 130 ° C. was used.
  • the surface layer is still 0.15mm by setting the discharge ratio of the first extruder, the second extruder, the third extruder and the sub-extruder to 70:15:15 weight ratio, the first support layer (PC, bottom layer), the second support layer (PMMA , An intermediate layer) and a transparent plastic sheet (thickness 1 mm) were prepared such that the thickness of the third support layer (PC, boundary layer) was 0.1 mm, 0.15 mm, and 0.6 mm, respectively.
  • Sheets according to Comparative Examples 1 and 2 were prepared in the same manner as in Example 1, except that the three-way copolymer PMMA resin having a glass transition temperature of 115 ° C. and the three-way copolymer PMMA resin having 140 ° C. were used.
  • a transparent plastic sheet was manufactured in the same manner as in Example 1, except that general PMMA (polymer of MMA) having a glass transition temperature of 110 ° C. was used as the resin for forming the surface layer.
  • general PMMA polymer of MMA having a glass transition temperature of 110 ° C.
  • Sheets according to Comparative Examples 4 and 5 were prepared in the same manner as in Example 1 except that the sheet was manufactured such that the thickness of the surface layer was 0.03 mm corresponding to 3% of the total sheet thickness and 0.25 mm corresponding to 25%. It was.
  • Haze and transmittance measurement Haze and transmittance were measured according to ASTM D1003.
  • Curvature characteristic measurement 16 samples each of size 65 ⁇ 135 (mm) were prepared, and then the degree of curling of the edges before the test was measured using a steel ruler or a Gab gauge. Subsequently, the test was carried out for 72 hours at a temperature of 85 ° C. and a humidity of 85%, and then the sample was left at room temperature for 30 minutes and the degree of warpage after the reliability evaluation was measured. At this time, the maximum value was selected from the measured warpage values before and after the test and the difference was reflected as the final warpage characteristic.
  • Example 1 Example 2
  • Example 3 Comparative Example 1 Comparative Example 2 Tg (°C) of surface layer 129 120 130 115 140 Haze (%) 0.06 0.05 0.07 0.04 0.19 Transmittance (%) 93.14 93.17 92.98 93.18 92.07 Flexural Modulus (GPa) 2.09 2.07 2.07 2.07 2.07 Surface Hardness (Pencil Hardness) 2H 2H H 2H HB Deflection Accuracy ( ⁇ Warpage, mm) 0.22 0.37 0.29 0.67 0.21 Water absorption rate (%) 0.18 0.31 0.17 0.40 0.16 Dimensional rate of change (%) 0.21 0.25 0.20 0.30 0.20
  • Example 4 Comparative Example 3 Surface layer (PMMA layer Tg) 129 °C 129 °C 110 ° C (typical PMMA) Support layer PC PC + PMMA + PC PC Haze (%) 0.06 0.06 0.05 Transmittance (%) 93.14 93.17 93.15 Flexural Modulus (GPa) 2.09 2.18 2.07 Surface Hardness (Pencil Hardness) 2H 2H 2H Deflection Accuracy ( ⁇ Warpage, mm) 0.22 0.17 1.04 Water absorption rate (%) 0.18 0.17 0.44 Dimensional strain (%) 0.21 0.20 0.40

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une feuille de plastique transparente comprenant : une couche de support comprenant une couche de résine de polycarbonate ; et une couche de résine de poly(méthacrylate de méthyle), qui est réalisée sous la forme d'une couche de surface sur la couche de support et présente une température de transition vitreuse de 120 à 135 °C, l'épaisseur de la couche de résine de poly(méthacrylate de méthyle) étant de 5 à 20 % de l'épaisseur totale de la feuille, et la transmittance globale de la feuille étant de 89 à 94 % sur la base de ASTM D1003. Par conséquent, la déformation de la feuille de plastique transparente peut être réduite à un minimum dans des conditions de haute température et de forte humidité et, de ce fait, la feuille de plastique transparente peut être favorablement utilisée, en tant que vitre remplaçant le verre, pour divers produits de présentation.
PCT/KR2015/010303 2014-09-30 2015-09-30 Feuille de plastique transparente Ceased WO2016052989A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580052891.8A CN106687290A (zh) 2014-09-30 2015-09-30 透明塑料片材
JP2017517319A JP6500097B2 (ja) 2014-09-30 2015-09-30 透明プラスチックシート
US15/514,849 US20170210104A1 (en) 2014-09-30 2015-09-30 Transparent plastic sheet

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0131443 2014-09-30
KR20140131443 2014-09-30
KR1020150137343A KR102290456B1 (ko) 2014-09-30 2015-09-30 투명 플라스틱 시트
KR10-2015-0137343 2015-09-30

Publications (1)

Publication Number Publication Date
WO2016052989A1 true WO2016052989A1 (fr) 2016-04-07

Family

ID=55630943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/010303 Ceased WO2016052989A1 (fr) 2014-09-30 2015-09-30 Feuille de plastique transparente

Country Status (1)

Country Link
WO (1) WO2016052989A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018230260A1 (fr) * 2017-06-13 2018-12-20 リケンテクノス株式会社 Film multicouche
EP3508323A4 (fr) * 2016-09-05 2020-04-29 Riken Technos Corporation Procédé de production d'un film multicouche

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06238842A (ja) * 1993-02-12 1994-08-30 Takiron Co Ltd 新規なる表面硬度改質板とその製法
KR20100037215A (ko) * 2008-10-01 2010-04-09 주식회사 에스폴리텍 투명패널 및 그 제조방법
KR20100038844A (ko) * 2008-10-07 2010-04-15 세원정공 주식회사 내후성, 가공성 및 내충격성이 우수한 다층시트
KR20110085907A (ko) * 2010-01-21 2011-07-27 스미또모 가가꾸 가부시끼가이샤 액정 디스플레이 보호용 적층판
JP2013086273A (ja) * 2011-10-13 2013-05-13 Sumitomo Chemical Co Ltd 樹脂板、それを用いた耐擦傷性樹脂板、ディスプレイ用保護板、携帯型情報端末の表示窓用保護板、タッチパネル用保護板、および樹脂板の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06238842A (ja) * 1993-02-12 1994-08-30 Takiron Co Ltd 新規なる表面硬度改質板とその製法
KR20100037215A (ko) * 2008-10-01 2010-04-09 주식회사 에스폴리텍 투명패널 및 그 제조방법
KR20100038844A (ko) * 2008-10-07 2010-04-15 세원정공 주식회사 내후성, 가공성 및 내충격성이 우수한 다층시트
KR20110085907A (ko) * 2010-01-21 2011-07-27 스미또모 가가꾸 가부시끼가이샤 액정 디스플레이 보호용 적층판
JP2013086273A (ja) * 2011-10-13 2013-05-13 Sumitomo Chemical Co Ltd 樹脂板、それを用いた耐擦傷性樹脂板、ディスプレイ用保護板、携帯型情報端末の表示窓用保護板、タッチパネル用保護板、および樹脂板の製造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3508323A4 (fr) * 2016-09-05 2020-04-29 Riken Technos Corporation Procédé de production d'un film multicouche
TWI735619B (zh) * 2016-09-05 2021-08-11 日商理研科技股份有限公司 多層薄膜之製造方法、具有多層薄膜之物品之製造方法、及具有多層薄膜之物品
US11465323B2 (en) 2016-09-05 2022-10-11 Riken Technos Corporation Method for producing multilayer film
WO2018230260A1 (fr) * 2017-06-13 2018-12-20 リケンテクノス株式会社 Film multicouche
US11396165B2 (en) 2017-06-13 2022-07-26 Riken Technos Corporation Multilayer film

Similar Documents

Publication Publication Date Title
KR102290456B1 (ko) 투명 플라스틱 시트
TWI723985B (zh) 積層體
WO2014109471A1 (fr) Laminé en résine transparent et écran tactile comprenant un tel laminé
KR19990036705A (ko) 광확산성 적층 수지판
KR20170057301A (ko) 압출 수지판의 제조 방법 및 압출 수지판
US20170136748A1 (en) Transparent resin laminate
KR20170028083A (ko) 커버 윈도우 기판 및 이의 제조 방법
CN109562553B (zh) 挤出树脂板的制造方法和挤出树脂板
US9802395B2 (en) Synthetic resin laminate
KR20180041616A (ko) 수지 조성물, 성형품 및 적층체
KR20150020419A (ko) 터치패널용 커버 플라스틱 시트
WO2018199213A1 (fr) Plaque de résine extrudée et son procédé de fabrication
JPWO2017164276A1 (ja) 押出樹脂板の製造方法及び押出樹脂板
WO2014092388A1 (fr) Film de revêtement dur hybride organique-inorganique, et plaque de polarisation le comprenant
WO2017073987A1 (fr) Feuille décorative présentant une excellente résistance aux rayures
TW201615416A (zh) 合成樹脂層合體
KR20160080277A (ko) 다층시트
WO2016052989A1 (fr) Feuille de plastique transparente
US20250196488A1 (en) Method for manufacturing transparent sheet, and transparent sheet
KR102346783B1 (ko) 커버 윈도우 기판 및 이를 구비하는 화상표시장치
KR20160081831A (ko) 투명 플라스틱 시트
JP7182854B2 (ja) 偏光板および画像表示装置
WO2012015205A1 (fr) Feuille de réflexion pour unité de rétro-éclairage
KR101519422B1 (ko) 디스플레이용 적층체 및 이를 포함하는 디스플레이 윈도우 패널
WO2016108630A1 (fr) Feuille de plastique transparente

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15847034

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15514849

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2017517319

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15847034

Country of ref document: EP

Kind code of ref document: A1