WO2013125781A1 - 고내열성 다층 광학필름 및 그의 제조방법 - Google Patents
고내열성 다층 광학필름 및 그의 제조방법 Download PDFInfo
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- WO2013125781A1 WO2013125781A1 PCT/KR2012/011526 KR2012011526W WO2013125781A1 WO 2013125781 A1 WO2013125781 A1 WO 2013125781A1 KR 2012011526 W KR2012011526 W KR 2012011526W WO 2013125781 A1 WO2013125781 A1 WO 2013125781A1
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- WIPO (PCT)
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- resin layer
- optical film
- multilayer optical
- petg
- resin
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
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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
-
- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
-
- 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
- B32B2551/00—Optical elements
Definitions
- the present invention relates to a high heat-resistant multilayer optical film and a method of manufacturing the same, and more specifically, a first resin layer comprising crystalline naphthalene dicarboxylic acid polyester; And it provides a multilayer optical film having a structure in which a second resin layer comprising polyethylene terephthalate glycol (PETG) is alternately laminated.
- PETG polyethylene terephthalate glycol
- polyester-based polymers use alternating layers of crystalline polyester-based polymers and another polymer. This uses the phenomenon of reflecting light rays through constructive interference occurring at the interfaces of materials having different refractive indices.
- polyester is used as a first component of the polarizer film in the multilayer optical film because of its high birefringence in the case of naphthalene dicarboxylic acid polyester in the polyester system.
- the properties of the polyester-based polymer is determined by the monomer material used in the production of the polymer, and thus has the advantage of easy control of the refractive index.
- the peeling phenomenon of the film may occur when the compatibility of the second component with the first component is inferior, and the polymer of the polyester-based polymer may be variously copolymerized, thereby preventing the peeling phenomenon of the first component and the second component. This is because it is easy to select a material that can satisfy the optical characteristics while preventing.
- An object of the present invention is to solve the heat resistance problem in the display material due to the heat generation problem of the display device to provide a multilayer optical film using a material having improved heat resistance.
- Still another object of the present invention is to provide a method of manufacturing a multilayer optical film having excellent heat resistance and strong reflection through an organic material having excellent heat resistance.
- the present invention comprises a first resin layer comprising a crystalline naphthalene dicarboxylic acid polyester; And it provides a multilayer optical film having a structure in which a second resin layer comprising polyethylene terephthalate glycol (PETG) is alternately laminated.
- PETG polyethylene terephthalate glycol
- the present invention is (a) melt extrusion of the first resin containing crystalline naphthalene dicarboxylic acid polyester and the second resin containing polyethylene terephthalate glycol (PETG), respectively, alternately Laminating; And (b) provides a method for producing a multilayer optical film comprising the step of heat-setting after stretching the laminated sheet in step (a).
- PETG polyethylene terephthalate glycol
- the multilayer optical film of the present invention has a second resin layer containing polyethylene terephthalate glycol (PETG) having a constant glass transition temperature, heat resistance is improved, and a high refractive index difference with the first resin layer may be generated, thereby providing optical Excellent property
- PETG polyethylene terephthalate glycol
- Figure 1 shows a graph showing the optical characteristics test results of Example 1 and Example 2.
- the present invention comprises a first resin layer comprising a crystalline naphthalene dicarboxylic acid polyester; And it provides a multilayer optical film having a structure in which a second resin layer comprising polyethylene terephthalate glycol (PETG) is alternately laminated.
- PETG polyethylene terephthalate glycol
- the first resin layer has a crystalline naphthalene dicarboxylic acid polyester as a main component, and the crystalline naphthalene dicarboxylic acid polyester is polyethylene naphthalate (PEN).
- PEN polyethylene naphthalate
- the PEN may be prepared by the condensation of naphthalate dicarboxylate and ethylene glycol.
- the PEN included in the first resin layer has a large birefringence and is excellent in heat resistance.
- the second resin layer is characterized in that it comprises polyethylene terephthalate glycol (PETG).
- PETG such as the following [Formula 1] can be used that is prepared from ethylene glycol (EG: Ethylene glycol) and cyclohexane dimethanol (CHDM: 1,4-cyclohexanedimethanol) and terephthalic acid (TPA: Terephthalic acid),
- EG Ethylene glycol
- CHDM 1,4-cyclohexanedimethanol
- TPA Terephthalic acid
- PETG polyethylene terephthalate glycol
- the second resin layer is characterized in that the glass transition temperature is 100 ⁇ 140 °C. If the glass transition temperature is less than 100 °C, there is a fear that the structural stability is lowered in the stretching process step, and if the glass transition temperature is higher than 140 °C, it may affect the heat resistance of the final multilayer optical film may have a problem that the flame resistance is inferior. .
- the PETG resin is characterized in that the content of cyclohexanedimethanol (Cyclohexanedimethanol: CHDM) is more than 50%.
- CHDM cyclohexanedimethanol
- the content of the cyclohexane dimethanol is less than 50%, only the existing glass transition temperature of 80 ⁇ 90 °C PETG bar can be obtained, the normal PETG having a glass transition temperature of about 80 ⁇ 90 °C generally The content of the cyclohexane dimethanol is 25% level.
- PETG for producing the high heat resistant film may be used by increasing the content of cyclohexanedimethanol to 60 to 70%, thereby solving the problem of heat resistance.
- PETG which is an amorphous resin
- PETG has crystallinity and loses the amorphous properties of PETG.
- more than 50%, preferably 60 to 70% of cyclohexamethanol By containing this, while maintaining amorphous resin characteristics, high heat resistant PETG whose glass transition temperature is 100-140 degreeC can be obtained.
- the glass transition temperature of the cross-repeated material determines the final performance of the multilayer optical film, which is related to the structural stability of the layers so that the layers do not merge or disproportionately split.
- the first resin layer and the second resin layer included in the present invention are characterized in that the refractive index difference is 0.2 or less, particularly, the difference in the refractive index is preferably 0.05 to 0.2.
- the multilayer optical film of the present invention it is important to increase the reflectance of light at the interface by cross-arranging resin layers having different refractive indices, and when the difference in refractive index is less than 0.05, the transmittance is higher than the reflectance at the interface. As a result, there is a fear that the final product as a product may have no product value.
- the difference in refractive index of each numerical layer is an important figure in determining the efficiency of the multilayer optical film.
- the resin layer containing polyethylene terephthalate glycol (PETG) does not have excellent heat resistance, but in the present invention, the glass transition temperature of the second resin layer containing polyethylene terephthalate glycol (PETG) is 100 to 140 ° C. It has been characterized in that, overcoming the disadvantages of heat resistance, multilayered by including a laminated structure with a first numerical layer containing polyethylene naphthalate (PEN) having a relatively high refractive index compared to the refractive index of polyethylene terephthalate glycol (PETG) The optical properties of the optical film can be significantly improved.
- PEN polyethylene naphthalate
- the thickness of the first resin layer and the second resin layer may be 100 ⁇ 500nm, it is particularly preferable to include a thickness of 200 ⁇ 300nm in that the light in the visible region can be adjusted.
- the thickness of each resin layer determines the wavelength region of the light to be transmitted, and in detail, the wavelength region of the light may be determined by the value of the refractive index of each layer in the thickness of each layer. If the thickness of the first resin layer and the second resin layer is less than 100nm, there is a fear that the adjustable wavelength band is changed to a short wavelength, and if it exceeds 500nm, there is a problem that the adjusted wavelength band is changed to the infrared region.
- additives such as polycondensation catalysts, dispersants, electrostatic agents, antistatic agents, sunscreens, antiblocking agents and other inorganic lubricants do not impair the effects of the present invention. It may be added within the range.
- the surface layer of the multilayer optical film of the present invention may be constituted by the first resin layer, or may be constituted by the second resin layer.
- the multilayer optical film of the present invention prepared as described above can be used in various applications, such as a mirror film, a color filter, a packaging material, an optical window.
- a desired color is reflected semi-permanently to be used for interiors.
- the present invention comprises the steps of: (a) melt extrusion of the first resin containing crystalline naphthalene dicarboxylic acid polyester and the second resin containing polyethylene terephthalate glycol (PETG) and then alternately laminating; And (b) provides a method for producing a multilayer optical film comprising the step of heat-setting after stretching the laminated sheet in step (a).
- PETG polyethylene terephthalate glycol
- melt extrusion temperature is 280 degreeC or more, and it is more preferable that it is 280-300 degreeC in the point which can reduce the unmelted pellet in a film.
- the first resin and the second resin to be melt-extruded are laminated through the multilayer feed block. It is preferable that the temperature of the feed block does not deviate significantly from the melt extrusion temperature, and preferably, it is performed at 280 ° C or higher.
- the number of laminations is adjusted according to the position of the wavelength, the reflectance, or the thickness of the film, and can be laminated at least 50 layers or more and 1000 layers or more. As the number of stacked layers increases, the reflectance of a specific wavelength increases, and when the layer is gradientd, the range of reflected wavelengths can be widened. It is also possible to change the position of the wavelength according to the thickness of each layer, and the thickness of the outermost layer can be adjusted as necessary. In particular, maintaining the flow rate ratio well through the extrusion ratio helps to produce a film having an appearance that does not flow.
- the laminated sheet can be stretched in at least one of the longitudinal direction and the transverse direction. More specifically, the laminate formed through the multilayer feed block is stretched in at least one of the longitudinal direction and the transverse direction after casting, thereby increasing the refractive index difference.
- the manufactured optical filter may have a property of expressing only part of birefringence to separate and transmit / reflect light. It is desirable to cool rapidly by using an air knife during casting, which helps to maintain the unique refractive index without mixing the first resin and the second resin.
- the glass transition temperature (Tg) of polyethylene terephthalate glycol (PETG) is preferably below 30 ° C.
- the glass transition temperature (Tg) is preferably carried out at a temperature of less than 10 °C.
- the extending process of the multilayer film of this invention can be performed at the extending
- the difference in refractive index between the first resin layer and the second resin layer in the stretching direction is greater than the difference in refractive index between the first resin layer and the second resin layer in the non-drawing direction.
- the polyethylene terephthalate glycol (PETG) included in the second resin layer is amorphous and is an isotropic polymer resin that maintains a low refractive index after extrusion and stretching, and thus the refractive index is constant regardless of stretching.
- the refractive index of the first resin layer increases after stretching than before stretching, unlike the PETG included in the second resin layer, the naphthalate groups present in the PEN included in the first resin layer are rearranged by stretching the film. Because.
- the difference in refractive index between the first resin layer and the second resin layer in the stretching direction is further increased to 0.3 or more, and unlike the conventional art, hardly hinders stretching or haze due to crystallization. It is preferable that the haze value of each resin layer is all maintained at 0.5 to 0.7% below 1 or less.
- the high heat resistant PETG is a polymer having a Tg of 120 ° C., and the surface layer is composed of PEN.
- the film thus prepared was preheated at 160 ° C. for 1 minute, the draw ratio was 6: 1 at 150 ° C., and the drawing direction was in the machine direction (MD).
- the PETG is a polymer having a Tg of about 80 ° C.
- the surface layer is composed of PETG.
- the film thus prepared was preheated at 160 ° C. for 1 minute, the draw ratio was 6: 1 at 150 ° C., and the drawing direction was in the machine direction (MD).
- PEN polymer alone is prepared via extrusion.
- High heat resistant PETG polymer (glass transition temperature 120 ° C.) alone is prepared via extrusion.
- PETG polymer glass transition temperature 80 ° C. alone is prepared via extrusion.
- the flame retardancy of this test example was evaluated by using a method of horizontally placing one specimen on a fire, ie, a horizontal burning test.
- the optical films of Examples 1 to 4 and Comparative Examples 1 to 3 were manufactured into specimens having a length of 5 in. (127 mm), a width of 0.5 in. (12.7 mm), and a thickness of 0.12 to 0.5 in. (3.05 to 12.7 mm). , The flame was applied to the specimen in the horizontal direction, the length of the flame was 2cm, the color of the flame used a blue flame without red light. At this time, the application of the flame proceeded continuously. At this time, the flame retardancy of the multilayer optical films of Examples 1 to 4 and Comparative Examples 1 to 3 was measured and the results are shown in Table 1 below.
- the combustion start time (the time at which combustion first starts) of Examples 1 to 4 was determined to be slower than that of Comparative Examples 1 to 3.
- the complete combustion time also took longer than Examples 1 to 4 compared to Comparative Examples 1 to 3.
- the heat resistance of the optical film was further improved by laminating the first resin layer containing PEN and the second resin layer containing PETG. It was found to be excellent.
- the flame retardancy test results of Example 1 showed that the optical film to which the second resin layer containing the high heat resistant PETG having a higher glass transition temperature than the second resin layer containing the normal PETG was excellent in flame retardancy. .
- FIG. 1 shows the transmittances of the wavelengths of Examples 1 and 3, and the infrared rays exceeding 1000 ⁇ have no difference while maintaining the transmittance of 90% or more, but the transmittances of the visible rays within the range of 250 to 1000 ⁇ are inferior.
- the optical properties were ascending. Although not shown, this is similar to the optical characteristics of the multilayer optical film in which the resin layer including PET and the resin layer including PEN are alternately stacked, and the optical properties of Examples 1 and 3 were confirmed.
- the difference in refractive index between the first resin layer and the second resin layer in the non-stretching direction is 0.08, 0.12, It can be seen that the refractive index difference between the first resin layer and the second resin layer in the stretching direction is increased to 0.32 and 0.36.
- the difference in refractive index between layers may be generated by the stretching step, and the effect of constructive interference caused by the difference in refractive index may be increased.
- the optical effect that is, the reflectance of light, can be increased higher than before, resulting in better optical properties.
- Glass transition temperature of general PETG that is not high heat resistance is maintained at 80 ⁇ 90 °C, and 60 °C is lower than glass transition temperature of general PETG.
- high temperature resistant PETG and PEN Examples 1, 2, and 4, which alternately laminated optical films, and Example 3, which alternately laminated general PETG and PEN, prepared optical films had low dimensional strains.
- Comparative Example 1 using only PEN resin, Comparative Example 2 using only high heat resistant PETG resin and Comparative Example 3 using only general PETG resin showed relatively good dimensional strain.
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
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- Health & Medical Sciences (AREA)
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- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
그을음 발생시간(sec) | 연소시작시간(sec) | 완전연소시간(sec) | |
실시예1 | 30 | 60 | 180 |
실시예2 | 30 | 55 | 185 |
실시예3 | 10 | 50 | 120 |
실시예4 | 20 | 30 | 100 |
비교예1 | 30 | 30 | 60 |
비교예2 | 30 | 30 | 50 |
비교예3 | 5 | 20 | 40 |
실시예1 | 실시예3 | 비교예1 | 비교예2 | 비교예3 | ||
제 1수지층 굴절율 | 연신전 | 1.64 | 1.64 | 1.64 | - | - |
연신후(연신방향) | 1.88 | 1.89 | 1.62 | - | - | |
연신후(비연신방향) | 1.64 | 1.65 | 1.61 | - | - | |
제 2수지층 굴절율 | 연신전 | 1.56 | 1.54 | - | 1.56 | 1.54 |
연신후(연신방향) | 1.56 | 1.53 | - | 1.55 | 1.54 | |
연신후(비연신방향) | 1.56 | 1.53 | - | 1.55 | 1.54 |
방치 온도(60℃) | 방치 온도(60℃) | |||
12h 시간후 | 72 시간 후 | 12 시간 후 | 70 시간 후 | |
실시예1 | 0.7% | 1% | 1.3% | 1.8% |
실시예2 | 0.7% | 1% | 1.2% | 1.9% |
실시예3 | 0.5% | 0.8% | 4.1% | 5.8% |
실시예4 | 0.7% | 1% | 2.5% | 2.7% |
비교예1 | 0.9% | 1.3% | 5% | 8% |
비교예2 | 1% | 1.7% | 6% | 10% |
비교예3 | 1% | 1.9% | 11% | 15% |
Claims (9)
- 결정성 나프탈렌 디카복실산 폴리에스테르를 포함하는 제 1수지층; 및폴리에틸렌테레프탈레이트글리콜(PETG)을 포함하는 제 2수지층이 교대로 적층된 구조를 가지는 다층 광학필름.
- 제 1항에 있어서,상기 결정성 나프탈렌 디카복실산 폴리에스테르가 폴리에틸렌 나프탈레이트(PEN)인 것을 특징으로 하는 다층 광학필름.
- 제 1항에 있어서,상기 제 2수지층의 유리전이 온도가 100~140℃ 인 것을 특징으로 하는 다층 광학필름.
- 제 1항에 있어서,상기 제 1수지층과 제 2수지층의 굴절율 차이가 0.05~0.2인 것을 특징으로 하는 다층 광학필름.
- (a) 결정성 나프탈렌 디카복실산 폴리에스테르를 포함하는 제 1수지 및 폴리에틸렌테레프탈레이트글리콜(PETG)을 포함하는 제 2수지를 각각 용융 압출한 뒤 교대로 적층하는 단계; 및(b) 상기 단계 (a)에서 적층된 시트를 연신한 뒤 열고정하는 단계를 포함하는 다층 광학필름의 제조방법.
- 제 5항에 있어서,상기 단계 (b)에서 적층된 시트를 종방향 또는 횡방향 중 적어도 한 방향으로 연신하는 것을 특징으로 하는 다층 광학필름의 제조방법.
- 제 5항 또는 제 6항에 있어서,상기 용융 압출의 온도는 280~300℃이고,상기 종방향 및 횡방향 연신시 온도는 150~180℃인 것을 특징으로 하는 다층 광학필름의 제조방법.
- 제 5항에 있어서,상기 (b)단계의 연신공정 후,연신방향에서의 상기 제 1수지층 및 제 2수지층의 굴절율 차이가 비 연신방향에서의 상기 제 1수지층 및 제 2수지층의 굴절율 차이보다 큰 것을 특징으로 하는 다층 광학필름의 제조방법.
- 제 8항에 있어서,상기 연신방향에서의 상기 제 1수지층 및 제 2수지층의 굴절율 차이가 0.3 이상 인 것을 특징으로 하는 다층 광학필름의 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014556466A JP5950368B2 (ja) | 2012-02-20 | 2012-12-27 | 高耐熱性多層光学フィルム及びその製造方法 |
US14/375,588 US9541689B2 (en) | 2012-02-20 | 2012-12-27 | Multilayer optical film having high heat resistance and method for manufacturing the same |
CN201280069932.0A CN104125885B (zh) | 2012-02-20 | 2012-12-27 | 高耐热性多层光学膜及其制备方法 |
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KR20120017048A KR101417250B1 (ko) | 2012-02-20 | 2012-02-20 | 고내열성 다층 광학필름 및 그의 제조방법 |
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US (1) | US9541689B2 (ko) |
JP (1) | JP5950368B2 (ko) |
KR (1) | KR101417250B1 (ko) |
CN (1) | CN104125885B (ko) |
TW (1) | TWI468291B (ko) |
WO (1) | WO2013125781A1 (ko) |
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CN105196653B (zh) * | 2015-09-23 | 2017-06-23 | 安徽国风塑业股份有限公司 | 一种窗膜用聚酯基膜及其制作工艺 |
WO2017161120A1 (en) * | 2016-03-17 | 2017-09-21 | Qed Labs Inc. | Articles with improved flame retardancy and/or melt dripping properties |
WO2019145860A1 (en) * | 2018-01-26 | 2019-08-01 | 3M Innovative Properties Company | Multilayer reflective polarizer with crystalline low index layers |
CN109385110A (zh) * | 2018-10-08 | 2019-02-26 | 安徽大学 | 一种防霉变无卤阻燃竹塑复合材料及其制备方法 |
JP7115531B2 (ja) * | 2020-11-19 | 2022-08-09 | 住友ベークライト株式会社 | 反射板および光学部品 |
JP7115530B2 (ja) * | 2020-11-19 | 2022-08-09 | 住友ベークライト株式会社 | 反射板および光学部品 |
CN112920392A (zh) * | 2021-01-20 | 2021-06-08 | 银金达(上海)新材料有限公司 | 一种高透明petg材料及其应用 |
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- 2012-12-27 CN CN201280069932.0A patent/CN104125885B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
JP5950368B2 (ja) | 2016-07-13 |
TW201334966A (zh) | 2013-09-01 |
TWI468291B (zh) | 2015-01-11 |
KR20130095534A (ko) | 2013-08-28 |
KR101417250B1 (ko) | 2014-07-08 |
CN104125885A (zh) | 2014-10-29 |
JP2015514600A (ja) | 2015-05-21 |
US20150002935A1 (en) | 2015-01-01 |
US9541689B2 (en) | 2017-01-10 |
CN104125885B (zh) | 2016-08-31 |
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