WO2005109052A1 - 光学フィルム - Google Patents
光学フィルム Download PDFInfo
- Publication number
- WO2005109052A1 WO2005109052A1 PCT/JP2005/008392 JP2005008392W WO2005109052A1 WO 2005109052 A1 WO2005109052 A1 WO 2005109052A1 JP 2005008392 W JP2005008392 W JP 2005008392W WO 2005109052 A1 WO2005109052 A1 WO 2005109052A1
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- WO
- WIPO (PCT)
- Prior art keywords
- group
- optical film
- resin
- acid
- atom
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
-
- 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
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Definitions
- the present invention relates to a resin optical film containing a specific ultraviolet absorber, and the optical film of the present invention is a polarizing plate protective film, a retardation film, a viewing angle widening film, particularly used for a liquid crystal display device or the like. It is used for various functional films such as an optical correction film and an antireflection film used for a plasma display, an optical correction film for an organic EL display, and a luminous body protection film.
- resin Since resin is lighter than glass, it is used in many optical fields such as prisms, optical fibers, and various optical films, in addition to optical lenses.
- resin films have a problem that ultraviolet light causes a decrease in strength and a decrease in transparency due to discoloration, and this problem has a significant effect in optical film applications.
- ultraviolet absorbers such as benzotriazole-based compounds and triazine-based compounds are used in optical films.
- Japanese Patent Application Laid-Open No. 2002-249600 (refer to claims 2, [0018], [0029], and [0031]) ⁇ Japanese Patent Laid-Open No. 2001-246616 (claims 2, [0025], [ 0053],
- Japanese Unexamined Patent Publication No. Hei 11-71356 (Claim 1, [0009] to [0027], [0042]-[047]) report a triazine compound-based ultraviolet absorber used in the present invention.
- optical films there is no description about optical films.
- an optical film that uses an ultraviolet absorbent having a sufficient ultraviolet absorbing ability at a wavelength of 380 nm suitable for an optical film and has a small bleed-out of the ultraviolet absorbent has not been obtained. Disclosure of the invention
- An object of the present invention is to provide an optical film which has an excellent ability to absorb ultraviolet light having a wavelength of 380 nm and has less bleed-out of the ultraviolet absorbent.
- a first aspect of the present invention is to provide an optical film comprising a resin containing a triazine compound represented by the following general formula (I).
- a second aspect of the present invention is to provide a first optical film of the present invention, wherein the triazine compound is represented by the following general formula (II).
- R 7 to R 9 each independently represent a hydroxyl group; an organic group having 18 or less carbon atoms selected from an alkoxy group, a dialkylamino group, and an alkylcarbonyloxy group.
- alkoxy groups, Alkyl moiety The alkyl moiety in the propyloxy group may be substituted with a hydroxyl group, a halogen atom, a cyano group, or a nitro group, and is interrupted with an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, or an imino group. even well, it may have a double bond, the above substituted, interrupted, double bonds may be combined.
- R 1 Q ⁇ R 1 2 are each independently, Iotatau ⁇ kappa 6 Represents the same atom or group as.
- a third aspect of the present invention is to provide the first or second optical film of the present invention having a transmittance of 380 nm light of 20% or less.
- a fourth aspect of the present invention is to provide the optical film according to any one of the first to third aspects, wherein the optical film is for an image display device.
- the ultraviolet absorber used in the optical film of the present invention is a triazine compound represented by the general formula (I).
- the alkyl group of 8 or less include methyl, ethyl, propyl, isopropyl, butyl, second butyl, tertiary butyl, isobutyl, amyl, isoamyl, tertiary Amyl, hexyl, heptyl, 2-methylhexyl, isoheptyl, tertiary heptyl, n-cyclohexyl, isooctyl, tertiary octyl, 2-ethylhexyl, nonyl, isononyl, decyl, dodecyl, tridecyl , Tetradecyl, pencil decyl
- alkoxy group having 1 to! 18 carbon atoms of 18 or less examples include methyloxy, ethyloxy, propyloxy, isopropyloxy, butyloxy, second butyloxy, tertiary butyloxy, isobutyroxy, amyloxy, isoamyloxy, and tertiary amyloxy.
- Examples include ethyloxy, 2-year-old ctanoylethyloxy, 2-dibutylcarbamoylethyloxy, and the like.
- dialkylamino group having 18 or less carbon atoms represented by a length of 1 to! ⁇ 6 examples include dimethylamino, ethylmethylamino, getylamino, dibutylamino, dioctylamino, 1-piperidyl and the like.
- ⁇ ⁇ 6 is a hydroxyl group, it is a group derived from an organic carboxylic acid, which is derived from acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, bromo acid, Prillic acid, 2-ethylhexanoic acid, pelargonic acid, capric acid, neodecanoic acid, pendecanoic acid, lauric acid, tridecanoic acid, myristic acid, pennodecanoic acid, palmitic acid, margaric acid, stearic acid, cyclohexane Carboxylic acid, 3-methylcyclohexane carboxylic acid, 4-methylcyclohexane carboxylic acid, 2,4-dimethylcyclohexane carboxylic acid, etc., as organic carboxylic acids to introduce those having substitution or interruption. Include
- the aryl groups having 1 to 8 carbon atoms represented by 1 to! ⁇ 6 include phenyl, naphthyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, and 4-vinyl R-phenyl, 3-isopropylphenyl, 4-isopropylphenyl, 4-butylphenyl, 4-isobutylphenyl, 4-tert-butylphenyl, 4-hexylphenyl, 4-cyclohexylphenyl, 4-octylphenyl , 4- (2-ethylhexyl) phenyl, 2,3-dimethylphenyl, 2,4-dimethylphenyl, 2,5-dimethylphenyl, 2,6-dimethylphenyl, 3,4-dimethyl Phenyl, 3,5-dimethylphenyl, 2,4-di-tert-butylphenyl, 2,5-di-tert-butylphenyl, 2,6-
- the aryloxy group of 1 to! ⁇ And having 18 or less carbon atoms includes phenyloxy, naphthyloxy, 2-methylphenyloxy, 3-methylphenyloxy, 4-methylphenyloxy, and 4-methylphenyloxy.
- arylalkyloxy groups include benzyloxy, phenethyloxy, 2-phenyloxy, 2-phenyloxy, diphenylmethyloxy, and the like. Is mentioned. Ariru force Ruponiruokishi group having 1 to 8 carbon atoms represented by IT ⁇ R 6 is, R] when to R 6 is a hydroxyl group, a group derived from an organic carboxylic acid, organic carboxylic you induce this Examples of the acid include benzoic acid, 4-hydroxybenzoic acid, salicylic acid, naphthoic acid, 4-methylbenzoic acid, 4-tert-butylbenzoic acid, and 4-year-old octylbenzoic acid. Among these triazine compounds represented by the general formula (I), those represented by the above general formula (II) are preferable because of easy production and low cost.
- the triazine compound represented by the general formula (II) includes a hydroxyl group, an alkoxy group and a dimethylamino group in which R 1 R 3 and R 5 (or R 2 and RR 6 ) are located at the 4-position in the general formula (I). Or an alkylcarbonyloxy group, wherein R 2 and R ⁇ R 6 (or RR 3 and R 5 ) are located at the 3-position.
- R 1Q to R 12 of the 3-position substituent each of the above! ⁇ To 6 include the exemplified groups.
- R 7 to R g located at the 4-position are each independently an organic group selected from a hydroxyl group, an alkoxy group, a dialkylamino group and an alkyl carbonyloxy group, and specifically, examples of 1 to! ⁇ 6 Among the groups, groups corresponding to this are exemplified.
- triazine compounds represented by the general formula ( ⁇ ) according to the present invention include the following compounds No. 1 to No. 36.
- Me represents a methyl group
- Et represents an ethyl group
- Bu represents a butyl group
- Am represents an amyl group
- i Am represents an isoamyl group
- Hx represents a hexyl group
- cyHx represents a cyclohexyl group.
- the method for synthesizing the triazine compound represented by the general formula (I) or (II) is not particularly limited and may be any of commonly used synthesis methods.
- a phenol derivative or a resorcinol derivative is subjected to an addition reaction with cyanuric chloride using aluminum trichloride.
- 1 ⁇ to 1 ⁇ 6 and 1 ⁇ 7 to 1 1 location substituent represented by 2 it may be introduced after forming the triazine structure, before forming the triazine structure, introduced into the phenol compound or resorcinol derivative May be.
- the triazine compound used as an ultraviolet absorber may be used in an amount that does not hinder the transmission of visible light while sufficiently suppressing the ultraviolet transmittance of the optical film.
- the amount is preferably from 10 to 0.01 part by mass, more preferably from 5 to 0.01 part by mass, based on 0.0 part by mass.
- the optical film of the present invention preferably has a transmittance of 38 Onm light of 20% or less.
- the transmittance of visible light (400 to 800 nm) is 70% or more, preferably 80% or more.
- the triazine compound hardly bleeds out and has excellent durability of the ultraviolet absorbing effect.
- the resin constituting the optical film of the present invention is not particularly limited, and resins having physical properties suitable for the use of the optical film can be appropriately selected and used.
- the above resins include high-density polyethylene, isotactic polypropylene, syndiotactic polypropylene, hemi-isotactic polypropylene, polybutene-1, poly 3-methyl-1-butene, poly 3-methyl-1-pentene, Polyolefin-based resins such as poly 4-methyl-11-pentene, ethylene / propylene block or random copolymer, ethylene-vinyl acetate copolymer, olefin-maleimide copolymer and copolymers of monomers giving these polymers; Polychlorinated vinyl chloride, polyvinylidene chloride; chlorinated polyethylene, polyvinylidene fluoride, rubber chloride, vinyl chloride-vinyl acetate copolymer, vinyl chloride-ethylene copolymer, vinyl chloride-vinylidene chloride-vinyl acetate terpolymer, Vinyl chloride-acrylic acid Halogen-containing resin of ter copolymer
- ABS chlorinated polyethylene acrylonitrile styrene
- ACS chlorinated polyethylene acrylonitrile styrene
- SAN styrene acrylonitrile
- ABS chlorinated polyethylene acrylonitrile styrene
- ACS chlorinated polyethylene acrylonitrile styrene
- SAN styrene acrylonitrile
- ABS chlorinated polyethylene acrylonitrile styrene
- SAN styrene acrylonitrile butyl acrylate styrene
- Styrene resins such as (AAS), butadiene styrene, styrene maleic acid, styrene maleimide, ethylene propylene acrylonitrile styrene (AES), butadiene methacrylate methyl styrene (MBS); polycarbonate resins such as polycarbonate and branched polycarbonate; Xamethylene adipamide
- Polyamide resin such as polyamide using aromatic dicarboxylic acid or alicyclic dicarboxylic acid such as (nylon 66), polycaprolactam (nylon 6), nylon 6T; polyphenylene oxide (PPO) resin; modified polyphenylene Lenoxide resin; polyphenylene sulfide (PPS) resin; polyacetal (POM); modified polyacetal; polysulfone; polyethersulfone; polyetherketone; polyetherimide; polyoxyethylene; petroleum resin; cumarone resin; Cycloolefin resin; Cycloolefin-olefin copolymer resin; polyvinyl acetate resin; polyvinyl alcohol resin; acrylic resin such as polymethyl methacrylate; polymer alloy of polycarbonate and styrene resin; polyvinyl alcohol resin; Acetyl cellulose, triacetyl cell mouth (TAC) ⁇ Cellulose resin such as propionyl cellulose, butyryl cellulose, acetyl cellulose,
- thermosetting resin such as a resin may be used.
- natural rubber NR
- polyisoprene rubber IR
- SBR styrene butadiene rubber
- BR polybutadiene rubber
- EPDM ethylene-propylene-one-gen rubber
- IIR chloroprene rubber
- NBR acrylonitrile butadiene rubber
- rubber-based polymer compounds such as silicone rubber.
- a film having high visible light transmittance is used as an optical film for an image display device.
- polyolefin resin polyester resin, polycarbonate resin, polyamide resin, polysulfone, polyethersulfone, polyetherketone, polyetherimide, polyoxyethylene, norpolenene resin, acrylic resin, and cellulose resin are preferable. .
- the triazine compound does not easily bleed out.
- the above-mentioned resins may be used alone, or may be used as a mixture of two or more and a rubber or a copolymer, or may be used in a laminated form, depending on the application.
- the forming method is not particularly limited, and a method suitable for the resin component may be used. Examples of the method for forming the film include a solution casting method and a melt molding method.
- the solution casting method is a method in which a resin solution prepared by dissolving a resin in a solvent is coated by bar coating, spin coating, coating coating, T die, -no-T die, doctor knife coating, air knife coating, roll coating. , Die coat, gravure coat, extrusion coat using a hopper, etc., cast on various heat resistant materials, steel belts, metal foils, etc. flat plates or rolls, and dry the solvent component to obtain a film It is.
- a resin solution obtained by adding a necessary amount of the above triazine compound to a resin solution may be used.
- the solution casting method is based on resin polymerization using a radical polymerization, anion polymerization, and a cationic polymerization of monomers. It can also be applied to the formation of programs.
- the melt molding method is a method of using a molten resin composition to obtain a film by a melt extrusion method such as a method using a T-die or an inflation method; a calendar method; a hot press method;
- the optical film of the present invention can be used for images such as a liquid crystal display (LCD), a plasma display panel (PDP), an electroluminescent display (ELD), a cathode ray tube display (CRT), a fluorescent display tube, and a field emission display.
- liquid crystal display devices include polarizing plate protective films, retardation films, viewing angle widening films, optical correction films, anti-reflection films, and color tone adjustment films.
- the thickness of the optical film of the present invention may be appropriately set depending on the resin component and the application. For example, when it is used for a polarizing plate protective film, it is usually 5 to 500 m, preferably 10 to 150 x m, and more preferably 20 to 100 z m. If the thickness of the film is too small, the strength may decrease. If the thickness of the sheet is too large, the transparency may deteriorate, the birefringence may increase, and the appearance may decrease. Further, in the optical film of the present invention, various additives may be used as necessary, and various surface treatments may be performed.
- additives examples include light-absorbing dyes, pigments, dyes, antioxidants, light stabilizers, ultraviolet absorbers other than the triazine compound according to the present invention, near-infrared absorbers, infrared absorbers, antistatic agents, Lubricants, processing aids, plasticizers, inorganic fine particles, halogen compounds, phosphate ester compounds, phosphoric amide compounds, melamine compounds, fluorine resins or metal oxides, (poly) melamine phosphate, (poly) Difficulty of piperazine phosphate And the like.
- the various surface treatments include, for example, chemical treatment, mechanical treatment, corona discharge treatment, fire treatment, ultraviolet irradiation treatment, high frequency treatment, glow discharge treatment, active plasma treatment, laser treatment, mixed acid treatment, and ozone. Oxidation treatment etc. are mentioned.
- a number of irregularities or lines may be provided on the surface by the surface treatment.
- the volatility 5% by differential thermal analysis reduction temperature
- 3 8 0 nm molar extinction coefficient concentration 3. 0 X 1 0- 5 mole Z liter Black Mouth-form solution
- UV absorbers with a large 5% mass reduction temperature are less likely to bleed out and have a long lasting effect on UV absorption.
- UV absorber 5% decrease temperature 380 dishes molar extinction coefficient
- the triazine compound according to the present invention has a higher absorption of light at a wavelength of 380 nm and a 5% by mass reduction temperature at or above the comparative compound. Superior for use.
- Cyclohexane Toluene (1/9 mass ratio) 65 parts by mass of mixed solvent, 35 parts by mass of norpolene resin (trade name: ZEONOR 1060 R, product of Nippon Zeon Co., Ltd.), 2.0 parts by mass of ultraviolet absorber listed in Table 3
- the resin solution was cast on a polished glass plate using Barco overnight, pre-dried at 50 ° C for 20 minutes, and dried at 9 for 30 minutes to form a 25 / ⁇ m film. . With respect to the obtained film, the transmittance of light having a wavelength of 38 O nm was measured using a spectrophotometer U-3010 manufactured by Hitachi, Ltd. Table 3 shows the results. Table 3
- the above composition 2 ′ was melt-kneaded at 280 ° C. for 5 minutes using a plastmill. After kneading, the mixture was extruded from a nozzle having a diameter of 6 mm, and pellets were obtained using a water-cooled pelletizer. This pellet was formed into a 0.25 mm thick film at 280 ° C using an electric heating press. The transmittance of the obtained film to light having a wavelength of 380 nm was measured in the same manner as in Example 1, and as a result, it was 1.4%.
- Adeiki Arculs R-103 Adeiki Arculs R-103 (Asahi Denka Kogyo Co., Ltd.-Atalyl resin, resin content 50% by weight) and 1.5 g of Compound No. 31 were mixed.
- a resin composition was prepared using Formula 3 above, and this was applied to a 188 micron thick polyethylene terephthalate (PET) film with a bar coater # 9, and dried at 80 ° C for 30 seconds to form two layers. A film was obtained. Then, this two-layer film is thermocompression-bonded to a 0.9 mm thick alkali glass plate at 100 ° C, and a PET film protective glass plate having an optical film containing an ultraviolet absorber between the glass plate and the PET film is placed. make It was. The transmittance of the obtained PET film protective glass plate to 38 O nm wavelength light was measured in the same manner as in Example 1, and as a result, it was 1.0%. From the above Examples 1 to 3, it was confirmed that the optical film of the present invention absorbs light having a wavelength of 380 nm, has an excellent ultraviolet cut function, and has little bleed-out. Industrial applicability
- an optical film that has a high ultraviolet absorbing power at 380 nm and has a small preamount.
- the optical film includes various functional films such as a polarizing plate protective film used for a liquid crystal display device, a retardation film, a viewing angle widening film, an optical correction film, an antireflection film used for a plasma display, and an organic EL display. It is used for optical correction films and luminous body protection films.
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- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/596,113 US7553892B2 (en) | 2004-05-12 | 2005-04-26 | Optical film |
EP05737079A EP1746445B1 (en) | 2004-05-12 | 2005-04-26 | Optical film |
JP2006513009A JPWO2005109052A1 (ja) | 2004-05-12 | 2005-04-26 | 光学フィルム |
KR1020067023601A KR101231967B1 (ko) | 2004-05-12 | 2005-04-26 | 광학필름 |
US12/400,925 US7842744B2 (en) | 2004-05-12 | 2009-03-10 | Optical film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-142349 | 2004-05-12 | ||
JP2004142349 | 2004-05-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/400,925 Division US7842744B2 (en) | 2004-05-12 | 2009-03-10 | Optical film |
Publications (1)
Publication Number | Publication Date |
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WO2005109052A1 true WO2005109052A1 (ja) | 2005-11-17 |
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ID=35320349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/008392 WO2005109052A1 (ja) | 2004-05-12 | 2005-04-26 | 光学フィルム |
Country Status (7)
Country | Link |
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US (2) | US7553892B2 (ja) |
EP (1) | EP1746445B1 (ja) |
JP (1) | JPWO2005109052A1 (ja) |
KR (1) | KR101231967B1 (ja) |
CN (1) | CN100437164C (ja) |
TW (1) | TWI419923B (ja) |
WO (1) | WO2005109052A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
CN100437164C (zh) | 2008-11-26 |
US7842744B2 (en) | 2010-11-30 |
EP1746445A4 (en) | 2009-12-16 |
US20070215845A1 (en) | 2007-09-20 |
KR20070022039A (ko) | 2007-02-23 |
US20090258976A1 (en) | 2009-10-15 |
EP1746445A1 (en) | 2007-01-24 |
TWI419923B (zh) | 2013-12-21 |
CN1957270A (zh) | 2007-05-02 |
US7553892B2 (en) | 2009-06-30 |
KR101231967B1 (ko) | 2013-02-08 |
EP1746445B1 (en) | 2012-02-22 |
TW200540215A (en) | 2005-12-16 |
JPWO2005109052A1 (ja) | 2008-03-21 |
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