JP2011518343A - Optical film for flat panel display - Google Patents

Abstract

The following components: (A) a thermoplastic polymer; (B) a mixture containing two or more different compounds selected from the group consisting of compounds of formula (B-II) and (B-II), above Wherein E ₁ is selected from the group consisting of hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OX ₁ and —OC (O) X _2. C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 radicals selected, provided that X ₁ and X ₂ are independently C ₁ -C ₁₈ alkyl; interrupted by oxygen C ₃ -C ₅₀ alkyl or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen; E ₂ , E ₃ , E ₄ and E ₅ are independently hydrogen, C ₁ -C ₁₈ alkyl, phenyl, Or substituted by _1, 2 or 3 C ₁ -C ₄ alkyls Wherein A ₁ , A ₂ , A ₃ and A ₄ are independently hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O ) C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 groups selected from the group consisting of OY ₁ and —OC (O) Y ₂ , wherein Y ₁ and X ₂ are , Independently C ₁ -C ₁₈ alkyl; C ₃ -C ₅₀ alkyl interrupted by oxygen or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen; and optionally (C) at least An optical film for a flat panel display having one 2,2,6,6-tetramethylpiperidine derivative.

Description

  The present invention relates to a flat panel display comprising a thermoplastic polymer, two or more different hydroxyphenyltriazines and optionally a 2,2,6,6-tetramethylpiperidine derivative, a flat panel display having an optical film, an optical film Use of two or more different hydroxyphenyl triazines to improve UV resistance, and containing thermoplastic polymer, two or more different UV absorbers and optionally 2,2,6,6-tetramethylpiperidine derivatives Relates to the composition.

  The optical film for display is described in, for example, Japanese Patent Application Laid-Open No. 2007-217667 and US 2007/0160828 A.

〔式中、Ｅ₁は、水素、Ｃ₁〜Ｃ₁₈アルキル、−ＯＨ、Ｃ₂〜Ｃ₁₈アルケニルオキシ、−Ｃ（Ｏ）ＯＸ₁および−ＯＣ（Ｏ）Ｘ₂から構成されている群から選択された１、２または３個の基によって置換されたＣ₁〜Ｃ₁₈アルキル、但し、この場合Ｘ₁およびＸ₂は、独立してＣ₁〜Ｃ₁₈アルキルであるものとし；酸素によって中断されたＣ₃〜Ｃ₅₀アルキルまたは酸素によって中断されたＣ₃〜Ｃ₅₀ヒドロキシアルキルであり；Ｅ₂、Ｅ₃、Ｅ₄およびＥ₅は、独立して水素、Ｃ₁〜Ｃ₁₈アルキル、フェニルまたは１、２もしくは３個のＣ₁〜Ｃ₄アルキルによって置換されたフェニルである〕；

〔式中、Ａ₁、Ａ₂、Ａ₃およびＡ₄は、独立して水素、Ｃ₁〜Ｃ₁₈アルキル、−ＯＨ、Ｃ₂〜Ｃ₁₈アルケニルオキシ、−Ｃ（Ｏ）ＯＹ₁および−ＯＣ（Ｏ）Ｙ₂から構成されている群から選択された１、２または３個の基によって置換されたＣ₁〜Ｃ₁₈アルキル、但し、この場合Ｙ₁およびＸ₂は、独立してＣ₁〜Ｃ₁₈アルキルであるものとし；酸素によって中断されたＣ₃〜Ｃ₅₀アルキルまたは酸素によって中断されたＣ₃〜Ｃ₅₀ヒドロキシアルキルである〕で示される化合物から構成されている群から選択された２つ以上（有利に２つ）の異なる化合物を含有する混合物；
および場合によっては
（Ｃ）少なくとも１つの２，２，６，６−テトラメチルピペリジン誘導体を有するフラットパネルディスプレイ用光学フィルムに関する。 The present invention especially comprises the following component (A) thermoplastic polymer;
(B) Formulas (B-II) and (B-II):

[Wherein E ₁ is selected from the group consisting of hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OX ₁ and —OC (O) X _2. C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 selected groups, provided that X ₁ and X ₂ are independently C ₁ -C ₁₈ alkyl; interrupted by oxygen C ₃ -C ₅₀ alkyl or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen; E ₂ , E ₃ , E ₄ and E ₅ are independently hydrogen, C ₁ -C ₁₈ alkyl, phenyl Or phenyl substituted by _1, 2 or 3 C ₁ -C ₄ alkyl];

Wherein A ₁ , A ₂ , A ₃ and A ₄ are independently hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OY ₁ and —OC (O) C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 groups selected from the group consisting of Y ₂ , wherein Y ₁ and X ₂ are independently C ₁ ˜C ₁₈ alkyl; C ₃ -C ₅₀ alkyl interrupted by oxygen or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen]. A mixture containing two or more (preferably two) different compounds;
And optionally (C) an optical film for flat panel displays having at least one 2,2,6,6-tetramethylpiperidine derivative.

Examples of C ₁ -C ₁₈ alkyl are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 1-methylpentyl, 1,3 -Dimethylbutyl, n-hexyl, 1-methylhexyl, n-heptyl, isoheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 3-methylheptyl, n-octyl, 2-ethylhexyl, 1 , 1,3-trimethylhexyl, 1,1,3,3-tetramethylpentyl, nonyl, decyl, undecyl, 1-methylundecyl, dodecyl, 1,1,3,3,5,5-hexamethylhexyl, Tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl and octadecyl. Particularly preferred are isomer mixtures of C ₁ -C ₈ alkyl such as methyl, n-butyl, 2-ethylhexyl or octyl.

である。 Composed of —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OX ₁ (or —C (O) OY ₁ ) and —OC (O) X ₂ (or —OC (O) Y ₂ ). Preferred examples of C ₁ -C ₁₈ alkyl, preferably C ₃ -C ₁₈ alkyl, substituted by 1, 2 or 3 groups selected from the group consisting of 2-hydroxyethyl

It is.

One example of C ₃ -C ₅₀ alkyl interrupted by one or more oxygen, - a _{(CH 2 CH 2 -O-) 3} -CH 3.

である。 Preferred examples of C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen are:

It is.

A preferred example of phenyl substituted by _1, 2 or 3 C ₁ -C ₄ alkyl is 2,4-dimethylphenyl.

Examples of thermoplastic polymers are as follows:
1. Monoolefin and diolefin polymers such as polypropylene, polyisobutylene, polybut-1-ene, poly-4-methylpent-1-ene, polyvinylcyclohexane, polyisoprene or polybutadiene, and cycloolefin polymers such as cyclopentene or norbornene, polyethylene (May be cross-linked in some cases), for example, high density polyethylene (HDPE), high density high molecular weight polyethylene (HDPE-HMW), high density ultra high molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low Density polyethylene (LDPE), linear low density polyethylene (LLDPE), (VLDPE) and (ULDPE).

Polyolefins, ie the polymers of monoolefins exemplified in the preceding paragraph, preferably polyethylene and polypropylene, can be prepared by various methods, and in particular by the following methods:
a) Radical polymerization (usually under high pressure and high temperature).
b) Catalytic polymerization using a catalyst that normally contains one or more metals from groups IVb, Vb, VIb or VIII of the Periodic Table. The metal usually has one or more ligands, typically oxides, halides, alcoholates, esters, ethers, amines, alkyls, alkenyls and / or aryls, which have a π or σ coordination. Any of the positions may be used. Said metal complexes may be in free form or fixed on a substrate, typically activated magnesium chloride, titanium (III) chloride, alumina or silicon oxide. Said catalyst may be soluble or insoluble in the polymerization medium. In the polymerization, the catalyst can be used by itself or further activators, typically metal alkyls, metal hydrides, metal alkyl halides, metal alkyl oxides or metal alkyl oxanes, can be used. The metal is an element of group Ia, IIa and / or IIIa of the periodic table. Said activators may optionally be modified with further ester, ether, amine or silyl ether groups. Such catalyst systems are commonly referred to as Phillips, Standard Oil Indiana, Ziegler (-Natta), TNZ (DuPont), metallocene or single site catalysts (SSC).

  2. Mixtures of polymers mentioned under item 1), for example mixtures of polypropylene and polyisobutylene, mixtures of polypropylene and polyethylene (eg PP / HDPE, PP / LDPE), and mixtures of different types of polyethylene (eg LDPE / HDPE) .

  3. Copolymers of monoolefins and diolefins with each other or with other vinyl monomers, such as ethylene / propylene copolymers, linear low density polyethylene (LLDPE) and mixtures of said polyethylene with low density polyethylene (LDPE), propylene / But-1-ene copolymer, propylene / isobutylene copolymer, ethylene / but-1-ene copolymer, ethylene / hexene copolymer, ethylene / methylpentene copolymer, ethylene / heptene copolymer, ethylene / octene copolymer, ethylene / vinylcyclohexane copolymer, ethylene / Cycloolefin copolymers (eg ethylene / norbornene, eg COC), ethylene / 1-olefin copolymers, where 1-olefins are produced in situ; Propylene / butadiene copolymers, isobutylene / isoprene copolymers, ethylene / vinylcyclohexene copolymers, ethylene / alkyl acrylate copolymers, ethylene / alkyl methacrylate copolymers, ethylene / vinyl acetate copolymers or ethylene / acrylic acid copolymers and their salts (ionomers), and ethylene Terpolymers with propylene and dienes such as hexadiene, dicyclopentadiene or ethylidene-norbornene; and mixtures of such copolymers and with the polymers mentioned in 1) above, such as polypropylene / ethylene-propylene copolymers, LDPE / ethylene -Vinyl acetate copolymer (EVA), LDPE / ethylene-acrylic acid copolymer (EAA), LL DPE / EVA, LLDPE / EAA, and alternating or random polyalkylene / carbon monoxide copolymers and mixtures of these with other polymers such as polyamides.

  4). Polystyrene, poly (p-methylstyrene), poly (α-methylstyrene).

  5. Vinyl fragrances, including all isomers of styrene, α-methylstyrene, vinyltoluene, especially all isomers of p-vinyltoluene, ethylstyrene, propylstyrene, vinylbiphenyl, vinylnaphthalene and vinylanthracene, and mixtures thereof Aromatic homopolymers and copolymers derived from aromatic monomers. Homopolymers and copolymers may have any stereostructure including syndiotactic, isotactic, hemiisotactic, or atactic, in which case an atactic polymer is preferred. Stereo block polymers are also included.

  5a. Ethylene, propylene, diene, nitrile, acid, maleic anhydride, maleimide, vinyl acetate and vinyl chloride or acrylic derivatives and mixtures thereof such as styrene / butadiene, styrene / acrylonitrile, styrene / ethylene (copolymer), styrene / alkyl Methacrylate, styrene / butadiene / alkyl acrylate, styrene / butadiene / alkyl methacrylate, styrene / maleic anhydride, styrene / acrylonitrile / methyl acrylate; mixtures of impact styrene copolymers with other polymers such as polyacrylates, diene polymers or ethylene / Propylene / diene terpolymers; and block copolymers of styrene, such as styrene / butadiene / styrene, styrene / isoprene / styrene Emissions, styrene / ethylene / butylene / styrene or styrene / ethylene / propylene / styrene selected from copolymers containing the vinyl aromatic monomers and comonomers.

  5b. Hydrogenated aromatic polymers derived from the hydrogenation of polymers mentioned in item 5), especially polycyclohexylethylene (PCHE) produced by hydrogenating atactic polystyrene, which is often polyvinylcyclohexane (PVCH ).

  5c. Hydrogenated aromatic polymers derived from the hydrogenation of polymers mentioned under item 5a).

  Homopolymers and copolymers may have any stereostructure including syndiotactic, isotactic, hemiisotactic or atactic; where atactic polymers are preferred. Stereo block polymers are also included.

  6). Graft copolymers of vinyl aromatic monomers such as styrene or α-methylstyrene, such as styrene on polybutadiene, styrene on polybutadiene-styrene or polybutadiene-acrylonitrile copolymer; styrene and acrylonitrile (or methacrylonitrile) on polybutadiene; on polybutadiene Styrene, acrylonitrile and methyl methacrylate; styrene and maleic anhydride on polybutadiene; styrene, acrylonitrile and maleic anhydride or maleimide on polybutadiene; styrene and maleimide on polybutadiene; styrene and alkyl acrylate or methacrylate on polybutadiene; ethylene / propylene / Styrene and acrylo on diene terpolymers Tolyl; styrene and acrylonitrile on polyalkyl acrylates or polyalkyl methacrylates, styrene and acrylonitrile on acrylate / butadiene copolymers, and mixtures thereof with copolymers shown in 6), eg ABS, MBS, ASA or AES polymers A copolymer mixture of

  7. Polymers derived from α, β-unsaturated acids and their derivatives, such as polyacrylates and polymethacrylates; their impact modifiers using polymethyl methacrylate, polyacrylamide and polyacrylonitrile, butyl acrylate.

  Copolymers of monomers mentioned in 8.7) or with other unsaturated monomers, such as acrylonitrile / butadiene copolymers, acrylonitrile / alkyl acrylate copolymers, acrylonitrile / alkoxyalkyl acrylates or acrylonitrile / vinyl halide copolymers or acrylonitrile / alkyl methacrylates / Butadiene terpolymer.

  9. Polymers derived from unsaturated alcohols and amines or acyl derivatives or their acetals, such as polyvinyl alcohol, polyvinyl acetate, polyvinyl stearate, polyvinyl benzoate, polyvinyl maleate, polyvinyl butyral, polyallyl phthalate or polyallyl melamine; Copolymers with olefins mentioned in 1) above.

  10. Polyacetals such as polyoxymethylene and polyoxymethylenes as described above containing ethylene oxide as a comonomer; polyacetals modified with thermoplastic polyurethanes, acrylates or MBS.

  11. Polyphenylene oxides and sulfides, and mixtures of polyphenylene oxide and styrene polymers or polyamides.

  12 Polyesters derived from dicarboxylic acids and diols and / or derived from hydroxycarboxylic acids or corresponding lactones, such as polyethylene terephthalate, polybutylene terephthalate, poly-1,4-dimethylolcyclohexane terephthalate, polyalkylene naphthalate (PAN) ) And polyhydroxybenzoates, and block copolyetheresters derived from hydroxyl-terminated polyethers; and polyesters modified with polycarbonate or MBS.

  13. Polycarbonate and polyester carbonate.

  14 Natural polymers such as cellulose, gum, gelatin, and chemically modified homologue derivatives thereof such as cellulose acetate, cellulose propionate, and cellulose butyrate, or cellulose ethers such as methylcellulose; and rosin and derivatives thereof.

  15. Mixtures of the aforementioned polymers (polyblends), for example PP / EPDM, polyamide / EPDM or ABS, PVC / EVA, PVC / ABS, PVC / MBS, PC / ABS, PBTP / ABS, PC / ASA, PC / PBT, PVC / CPE, PVC / acrylate, POM / thermoplastic PUR, PC / thermoplastic PUR, POM / acrylate, POM / MBS, PPO / HIPS, PPO / PA 6.6 and copolymers, PA / HDPE, PA / PP, PA / PPO, PBT / PC / ABS or PBT / PET / PC.

  Preferred thermoplastic polymers are those described above in items 3, 4, 5, 5a, 6 and 12-14.

  One embodiment which is the subject of the present invention is an optical film, in which component (A) comprises polystyrene, styrene copolymers, cyclic olefin homopolymers, cyclic olefin copolymers, polyesters, polycarbonates or cellulose derivatives, in particular styrene / Methyl methacrylate copolymer, poly (methyl methacrylate), cyclic olefin polymer or triacetyl cellulose.

  One preferred styrene copolymer is obtained by polymerizing two or more different styrene monomers. The styrene monomer may be unsubstituted styrene or substituted styrene. Examples of substituted styrenes include halogenated styrenes such as chlorostyrene and bromostyrene, and alkyl styrenes such as vinyl toluene and α-methyl styrene.

  One preferred styrene / methyl methacrylate copolymer has 20% to 95% by weight styrene monomer units and 80% to 5% by weight methyl methacrylate units, preferably 70% by weight styrene units and 30% by weight or less methyl methacrylate units.

  Norbornene-based resins or maleimide-based resins are also preferred as component (A) according to the invention.

  Furthermore, a preferred embodiment of the present invention is an optical film in which component (B) is a mixture of a compound of formula (BI) and a compound of formula (B-II).

  The compound of formula (BI) is preferably of the formula (BIa), (BIb), (BIc), (BId), (BI) e) or a compound of (BIF).

  The compound of formula (B-II) is preferably a compound of formula (B-II-a), (B-II-b) or (B-II-c).

  In a particularly preferred embodiment of the present invention, component (B) is a mixture of compounds (B-Ia) and (B-II-b) or compounds (B-I-c) and (B-II-c). It is related with the optical film which is a mixture.

  The compounds of the formulas (BI) and (B-II) are known per se and can be prepared by known methods, for example as described in US Pat. No. 6,060,543 A. Some compounds are commercially available.

  Preferred commercially available compounds of the formula (BI) are TINUVIN® 479, TINUVIN® 1577, TINUVIN® 411, TINUVIN® 400 and TINUVIN®. 405.

  Preferred commercially available compounds of the formula (B-II) are TINOSORB® S, TINUVIN® 460 and TINUVIN® 477.

  Examples of component (C) are carboxylic acid bis (1-undecyloxy-2,2,6,6-tetramethyl-4-piperidyl) ester, bis (2,2,6,6-tetramethyl-4- Piperidyl) sebacate, bis (2,2,6,6-tetramethyl-4-piperidyl) succinate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis (1-octyloxy- 2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) n-butyl-3,5-di-tert-butyl-4 -Condensate of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, N, N'-bis (2,2,6) , 6-Tetrame (Ru-4-piperidyl) hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, a linear or cyclic condensate, tris (2,2,6,6- Tetramethyl-4-piperidyl) nitrilotriacetate, tetrakis (2,2,6,6-tetramethyl-4-piperidyl) -1,2,3,4-butanetetracarboxylate, 1,1 ′-(1,2 -Ethanediyl) -bis (3,3,5,5-tetramethylpiperazinone), 4-benzoyl-2,2,6,6-tetramethylpiperidine, 4-stearyloxy-2,2,6,6- Tetramethylpiperidine, bis (1,2,2,6,6-pentamethylpiperidyl) -2-n-butyl-2- (2-hydroxy-3,5-di-tert-benzyl) -malonate, 3-n - Tyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro [4.5] decane-2,4-dione, bis (1-octyl-oxy-2,2,6,6-tetra Methylpiperidyl) sebacate, bis (1-octyloxy-2,2,6,6-tetramethylpiperidyl) succinate, N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) hexamethylene Linear or cyclic condensate of diamine and 4-morpholino-2,6-dichloro-1,3,5-triazine, 2-chloro-4,6-bis (4-n-butylamino-2,2, 6,6-tetramethylpiperidyl) -1,3,5-triazine and 1,2-bis (3-aminopropylamino) -ethane condensate, 2-chloro-4,6-di- (4-n -Butylamino-1,2,2,6,6 -Condensate of pentamethylpiperidyl) -1,3,5-triazine and 1,2-bis (3-aminopropylamino) ethane, 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl -1,3,8-triazaspiro [4.5] decane-2,4-dione, 3-dodecyl-1- (2,2,6,6, -tetramethyl-4-piperidyl) pyrrolidine-2,5- Dione, 3-dodecyl-1- (1,2,2,6,6-pentamethyl-4-piperidyl) pyrrolidine-2,5-dione, 4-hexadecyloxy-2,2,6,6-tetramethylpiperidine And 4-stearyloxy-2,2,6,6-tetramethylpiperidine, N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) hexamethylenediamine and 4-cyclohexyl Ami -Condensation with 2,6-dichloro-1,3,5-triazine, 1,2-bis (3-aminopropylamino) ethane and 2,4,6-trichloro-1,3,5-triazine Condensates and 4-butylamino-2,2,6,6-piperidine (CAS Registry Number [136504-96-6]); 1,6-hexanediamine and 2,4,6-trichloro-1,3,5 -Condensates with triazines and N, N-dibutylamine and 4-butylamino-2,2,6,6-tetramethylpiperidine (CAS registry number [192268-64-7]); N- (2,2, 6,6-tetramethyl-4-piperidyl) -n-dodecylsuccinimide, N- (1,2,2,6,6-pentamethyl-4-piperidyl) -n-dodecylsuccinimide, 2-undecyl-7, , 9,9-Tetramethyl-1-oxa-3,8-diaza-4-oxo-spiro- [4.5] decane, 7,7,9,9-tetramethyl-2-cycloundecyl-1- Reaction product of oxa-3,8-diaza-4-oxo-spiro- [4.5] decane with epichlorohydrin, 1.1-bis (1,2,2,6,6-pentamethyl-4 -Piperidyloxycarbonyl) -2- (4-methoxyphenyl) ethene, N, N'-bis-formyl-N, N'-bis' (2,2,6,6-tetramethyl-4-piperidyl) hexamethylene Amines, diesters of 4-methoxymethylenemalonic acid and 1,2,2,6,6-pentamethyl-4-hydroxypiperidine, poly [methylpropyl-3-oxy-4- (2,2,6,6-tetra Methyl-4-piperidyl)] Reaction product of loxane, maleic anhydride-α-olefin copolymer and 2,2,6,6-tetramethyl-4-aminopiperidine or 1,2,2,6,6-pentamethyl-4-aminopiperidine, 2 , 4-Bis [N- (1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) -N-butylamino] -6- (2-hydroxyethyl) amino-1,3 5-triazine, 1- (2-hydroxy-2-methylpropoxy) -4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine, 5- (2-ethylhexanoyl) oxymethyl-3, 3,5-trimethyl-2-morpholinone, Sanduvor [Clariant; CAS Registry Number: 106917-31-1], 5- (2-ethylhexanoyl) oxime Tyl-3,3,5-trimethyl-2-morpholinone, 2,4-bis [(1-cyclohexyloxy-2,2,6,6-piperidin-4-yl) butylamino] -6-chloro-s- Reaction product of triazine and N, N′-bis (3-aminopropyl) ethylenediamine, 1,3,5-tris (N-cyclohexyl-N- (2,2,6,6-tetramethylpiperazine-3- On-4-yl) amino) -s-triazine, 1,3,5-tris (N-cyclohexyl-N- (1,2,2,6,6-pentamethylpiperazin-3-one-4-yl) -Amino) -s-triazine.

で示される化合物であり、
上記式中、ｂ₁は、２〜２０、有利に２〜２０の数であり、基Ｒ₁は、独立して水素、Ｃ₁〜Ｃ₈アルキル、Ｏ、−ＯＨ、−ＣＨ₂ＣＮ、Ｃ₁〜Ｃ₁₈アルコキシ、Ｃ₅〜Ｃ₁₂シクロアルコキシ、Ｃ₃〜Ｃ₆アルケニル、１、２または３個のＣ₁〜Ｃ₄アルキルによってフェニル上で置換されていないかまたは置換されたＣ₇〜Ｃ₉フェニルアルキルであり、

で示される化合物であり、
上記式中、基Ｒ₂は、独立してＲ₁の意味の１つを有し、

上記式中、ｂ₂は、２〜２０であり、基Ｒ₃は、独立してＲ₁の意味の１つを有し、

上記式中、Ｒ₄は、水素またはＣ₁〜Ｃ₄アルキルであり、
Ｒ₅は、直接結合またはＣ₁〜Ｃ₁₀アルキレンであり、
ｂ₃は、２〜２０の数である。 Compound (C) is represented by the formula (C-Ia), (C-Ib), (C-Ic), (C-I-d), (C-I-III) or (C- IV)

A compound represented by
In the above formula, b ₁ is a number from 2 to 20, preferably 2 to 20, and the group R ₁ is independently hydrogen, C _{1 to} C ₈ alkyl, O, —OH, —CH ₂ CN, C ₁ -C ₁₈ alkoxy, C ₅ -C ₁₂ cycloalkoxy, C ₃ -C ₆ alkenyl, 1, 2 or 3 C ₁ -C ₄ alkyl C ₇ ~ which is either unsubstituted or substituted on the phenyl by C ₉ phenylalkyl;

A compound represented by
In the above formula, the group R ₂ independently has _one of the meanings of R ₁ ,

In the above formula, b ₂ is 2-20, the group R ₃ independently has _one of the meanings of R ₁ ,

In the above formula, R ₄ is hydrogen or C ₁ -C ₄ alkyl,
R ₅ is a direct bond or C ₁ -C ₁₀ alkylene,
b ₃ is a number of 2 to 20.

Examples of alkyl having up to 8 carbon atoms are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 1-methylpentyl, 1,3-dimethyl-butyl, n-hexyl, 1-methylhexyl, n-heptyl, isoheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 2-methylheptyl, n-octyl, 2 -Ethylhexyl. C ₁ -C ₄ alkyl, especially methyl are preferred.

Preferred examples of C ₁ -C ₁₈ alkoxy, such as C ₁ -C ₈ alkoxy, are methoxy, propoxy and octoxy.

One preferred example of C ₅ -C ₁₂ cycloalkoxy is cyclohexyloxy.

Examples of C ₃ -C ₆ alkenyl are allyl, 2-methallyl, butenyl, pentenyl and hexenyl. Allyl is preferred. The carbon atom at the 1 position is preferably saturated.

Examples of C ₇ -C ₉ phenylalkyl which are unsubstituted or substituted on phenyl by _1, 2 or 3 C ₁ -C ₄ alkyl are benzyl, phenylethyl, methylbenzyl, dimethylbenzyl, trimethylbenzyl And tert-butylbenzyl.

Examples of C ₁ -C ₈ acyl are formyl, acetyl, propionyl, butyryl, pentanoyl, hexanoyl, heptanoyl, octanoyl, acryloyl, methacryloyl and benzoyl. C ₁ -C ₈ alkanoyl, C ₃ -C ₈ alkenyl and benzoyl are preferred. Acetyl and acryloyl are particularly preferred.

Examples of C ₁ -C ₁₀ alkylene are methylene, ethylene, propylene, trimethylene, tetramethylene, pentamethylene, 2,2-dimethyl trimethylene, hexamethylene, trimethylhexamethylene, octamethylene and decamethylene.

R ₁ is preferably hydrogen, methyl or propoxy.

R ₂ is preferably methyl.

R ₃ and R ₄ are preferably hydrogen.

R ₅ is preferably ethylene.

  The compounds of component (C) are known per se, for example US Pat. No. 4,086,204 A, US Pat. No. 6,046,304 A, US Pat. No. 4,331,586 A, US Pat. No. 4,188,829. A, and may be prepared by known methods similar to those described in US Pat. No. 4,477,615 A and US Pat. No. 4,233,412 A.

  Preferred commercially available compounds of component (C) are CHMASSORB (R) 944, CHIMASORB (R) 2020, DASTIB (R) 1082, CYASO RB (R) UV3346, CYASORB (R) UV3529, CHIMASORB (R) 119, UVASORB (R) HA88 and TINUVIN (R) 622.

  Formulas (C-I-a), (C-I-b), (C-I-c), (C-I-d), (C-II), (C-III) and (C-IV) The meaning of the end groups that saturate the free valences in the compounds depends on the method used for their preparation. The end group may be modified after the production of the compound.

で示されるジアミン化合物との反応によって製造される場合には、ジアミノ基に結合した末端基は、水素であるかまたは相応して置換されたトリアジニル基、例えば式（Ｃ−Ｉ−ａ）の場合に基

であり、
トリアジン基に結合した末端基は、Ｃｌまたは基

である。 2,5-dichlorotriazines of the formula (C-Ia), (C-I-b), (C-I-c) or (C-I-d) correspondingly substituted and the formula

In the case where the terminal group bonded to the diamino group is hydrogen or a correspondingly substituted triazinyl group, for example in the case of formula (C-Ia) Based on

And
The terminal group attached to the triazine group is Cl or a group

It is.

It is advantageous to substitute -Cl, for example by -OH, or when the reaction is complete, it is advantageous to substitute by an amino group. Examples of amino groups that may be mentioned are pyrrolidin-1-yl, morpholino, —NH ₂ , —N (C ₁ -C ₈ alkyl) ₂ and —NR (C ₁ -C ₈ alkyl), where R Is hydrogen or a 2,2,6,6-tetramethyl-4-piperidyl group.

であり、
アミノ基に結合した末端基は、例えば水素または

である。 In the compound of the formula (III-c), the terminal group bonded to the triazine group is, for example, Cl or

And
The terminal group attached to the amino group is, for example, hydrogen or

It is.

で示される化合物と
式Ｙ₀−ＯＯＣ−Ｒ₅−ＣＯＯ−Ｙ₀〔式中、Ｙ₀は、例えばメチル、エチルまたはプロピルである〕で示されるジカルボン酸ジエステルとの反応によって製造される場合には、２，２，６，６−テトラメチル−４−オキシピペリジン−１−イル基に結合した末端基は、水素または−ＣＯ−Ｒ₅−ＣＯＯ−Ｙ₀であり、
ジアシル基に結合した末端基は、−Ｏ−Ｙ₀または

である。 Compounds of formula (C-IV) are for example represented by the formula

Compound wherein, Y ₀ is for example methyl, ethyl or propyl] wherein _{Y 0 -OOC-R 5 -COO-} Y 0 shown in the case prepared by reaction of a dicarboxylic acid diester represented by Is a terminal group bonded to the 2,2,6,6-tetramethyl-4-oxypiperidin-1-yl group is hydrogen or —CO—R ₅ —COO—Y ₀ ;
The terminal group bonded to the diacyl group is -O-Y ₀ or

It is.

Particularly preferred compounds of component (C) are

〔式中、ｂ₁は、式（Ｃ−Ｉ−ａ−１）、（Ｃ−Ｉ−ｂ−１）、（Ｃ−Ｉ−ｃ−１）、（Ｃ−Ｉ−ｄ−１）および（Ｃ−Ｉ−ｄ−２）中で２〜２０である〕であり、

〔式中、ｂ₂は、２〜２０である〕であり、

〔式中、ｂ₃は、２〜２０の数である〕である。

[Wherein b ₁ is a group represented by the formulas (C-I-a-1), (C-I-b-1), (C-I-c-1), (C-I-d-1) and ( 2) to 20 in C-Id-2),

Wherein, b ₂ is a 2 to 20] are,

[Wherein b ₃ is a number of 2 to 20].

である。 One particularly preferred compound of formula (C-Ib) is

It is.

  The preparation of the compound is described in Example 10 of US Pat. No. 6,046,304 A.

  One preferred embodiment of the present invention relates to an optical film containing components (A), (B) and (C).

  If desired, the optical film according to the present invention can further contain one or more conventional additives. Suitable examples are described next.

1. Antioxidant
1.1 Alkylated monophenols such as 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethyl Phenol, 2,6-di-tert-butyl-4-n-butylphenol, 2,6-di-tert-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2- (α- Methylcyclohexyl) -4,6-dimethylphenol, 2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, side Nonylphenols which are linear or branched in the chain, such as 2,6-di-nonyl-4-methylphenol, 2,4-dimethyl-6- (1′-methylun) Dec-1'-yl) phenol, 2,4-dimethyl-6- (1'-methylheptadec-1'-yl) phenol, 2,4-dimethyl-6- (1'-methyltridec-1'-yl) phenol , And mixtures thereof.

1.2 alkylthiomethylphenols such as 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2, 6-di-dodecylthiomethyl-4-nonylphenol.

1.3 Hydroquinones and alkylated hydroquinones such as 2,6-di-tert-butyl-4-methoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2, 6-diphenyl-4-octadecyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyanisole 3,5-di-tert-butyl-4-hydroxyphenyl stearate, bis (3,5-di-tert-butyl-4-hydroxyphenyl) adipate.

1.4 Tocopherols , for example α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol and mixtures thereof (vitamin E).

1.5 hydroxylated thiodiphenyl ethers such as 2,2′-thiobis (6-tert-butyl-4-methylphenol), 2,2′-thiobis (4-octylphenol), 4,4′-thiobis (6- Tert-butyl-3-methylphenol), 4,4′-thiobis (6-tert-butyl-2-methylphenol), 4,4′-thiobis (3,6-di-secondary amylphenol), 4, 4'-bis (2,6-dimethyl-4-hydroxyphenyl) -disulfide.

1.6 alkylidene bisphenols such as 2,2'-methylenebis (6-tert-butyl-4-methylphenol), 2,2'-methylenebis (6-tert-butyl-4-ethylphenol), 2,2'- Methylenebis [4-methyl-6- (α-methylcyclohexyl) -phenol], 2,2′-methylenebis (4-methyl-6-cyclohexylphenol), 2,2′-methylenebis (6-nonyl-4-methylphenol) ), 2,2'-methylenebis (4,6-di-tert-butylphenol), 2,2'-ethylidenebis (4,6-di-tert-butylphenol), 2,2'-ethylidenebis (6 -Tert-butyl-4-isobutylphenol), 2,2'-methylenebis [6- (α-methylbenzyl) -4-nonylphenol], 2,2'-methyle Bis [6- (α, α-dimethylbenzyl) -4-nonylphenol], 4,4′-methylenebis (2,6-di-tert-butylphenol), 4,4′-methylenebis (6-tert-butyl-2) -Methylphenol), 1,1-bis (5-tert-butyl-4-hydroxy-2-methylphenyl) butane, 2,6-bis (3-tert-butyl-5-methyl-2-hydroxybenzyl)- 4-methylphenol, 1,1,3-tris (5-tert-butyl-4-hydroxy-2-methylphenyl) butane, 1,1-bis (5-tert-butyl-4-hydroxy-2-methyl-) Phenyl) -3-n-dodecyl mercaptobutane, ethylene glycol bis [3,3-bis (3′-tert-butyl-4′-hydroxyphenyl) butyrate], bis (3-tert-butyl-4-hydroxy-) 5-methyl-phenyl) dicyclopentadiene, bis [2- (3′-tert-butyl-2′-hydroxy-5′-methylbenzyl) -6-tert-butyl-4-methylphenyl] terephthalate, 1,1 -Bis (3,5-dimethyl-2-hydroxyphenyl) butane, 2,2-bis (3,5-di-tert-butyl-4-hydroxyphenyl) propane, 2,2-bis (5-tert-butyl) -4-hydroxy-2-methylphenyl) -4-n-dodecyl mercaptobutane, 1,1,5,5-tetra (5-tert-butyl-4-hydroxy-2-methylphenyl) pentane.

1.7 O-, N-, and S-benzyl compounds such as 3,5,3 ', 5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3 , 5-dimethylbenzyl mercaptoacetate, tridecyl-4-hydroxy-3,5-di-tert-butylbenzyl mercaptoacetate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) amine, bis (4- Tert-butyl-3-hydroxy-2,6-dimethylbenzyl) dithioterephthalate, bis (3,5-di-tert-butyl-4-hydroxy-benzyl) sulfide, isooctyl-3,5-di-tert-butyl- 4-hydroxybenzyl mercaptoacetate.

1.8 Hydroxybenzylated malonate such as dioctadecyl-2,2-bis (3,5-di-tert-butyl-2-hydroxybenzyl) malonate, dioctadecyl-2- (3-tert-butyl-4- Hydroxy-5-methylbenzyl) malonate, didodecylmercaptoethyl-2,2-bis (3,5-di-tert-butyl-4-hydroxybenzyl) malonate, bis [4- (1,1,3,3- Tetramethylbutyl) phenyl] -2,2-bis (3,5-di-tert-butyl-4-hydroxybenzyl) malonate.

1.9 Aromatic hydroxybenzyl compounds such as 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,4-bis ( 3,5-di-tert-butyl-4-hydroxybenzyl) -2,3,5,6-tetramethylbenzene, 2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) ) Phenol.

1.10 Triazine compounds such as 2,4-bis (octylmercapto) -6- (3,5-di-tert-butyl-4-hydroxyanilino) -1,3,5-triazine, 2-octylmercapto- 4,6-bis (3,5-di-tert-butyl-4-hydroxyanilino) -1,3,5-triazine, 2-octyl mercapto-4,6-bis (3,5-di-tertiary Butyl-4-hydroxyphenoxy) -1,3,5-triazine, 2,4,6-tris- (3,5-di-tert-butyl-4-hydroxyphenoxy) -1,2,3-triazine, 1 , 3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) Isocyanurate, 2,4,6- Tris- (3,5-di-tert-butyl-4-hydroxyphenylethyl) -1,3,5-triazine, 1,3,5-tris (3,5-di-tert-butyl-4-hydroxyphenyl) Propionyl) -hexahydro-1,3,5-triazine, 1,3,5-tris (3,5-dicyclohexyl-4-hydroxybenzyl) isocyanurate.

1.11. Benzylphosphonates such as dimethyl-2,5-di-tert-butyl-4-hydroxybenzylphosphonate, diethyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl-3,5 Mono-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl-5-tert-butyl-4-hydroxy-3-methylbenzyl phosphonate, 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid mono Calcium salt of ethyl ester.

1.12. Acylaminophenols , such as 4-hydroxylauranilide, 4-hydroxystearanilide, octyl N- (3,5-di-tert-butyl-4-hydroxyphenyl) carbamate.

1.13 β- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid and mono- or polyhydric alcohols such as methanol, ethanol, n-octanol, i-octanol, octadecanol, 1 , 6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N '-Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [ 2.2 .2] Esters with octane.

1.14 β- (5-tert-butyl-4-hydroxy-3-methylphenyl) propionic acid and mono- or polyhydric alcohols such as methanol, ethanol, n-octanol, isooctanol, octadecanol, 1, 6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N ′ -Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [2 2.2] octane; 3,9-bis [2- {3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy} -1,1-dimethylethyl] -2,4, 8,10-tetraoxaspiro [5.5] - undecane.

1.15 β- (3,5-dicyclohexyl-4-hydroxyphenyl) propionic acid and mono- or polyhydric alcohols such as methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9- Nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N′-bis (hydroxyethyl) oxamide, 3 - thiaundecanol, 3-thiapentadecanol, trimethyl hexanediol, d of trimethylol propane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [2.2.2] octane Stealth .

1.16 3,5-di-tert-butyl-4-hydroxyphenylacetic acid and mono- or polyhydric alcohols such as methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol , Ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N′-bis (hydroxyethyl) oxamide, 3-thia undecanol, 3-thiapentadecanol, trimethyl hexanediol, trimethylolpropane, esters with 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [2.2.2] octane.

1.17 Amides of β- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid , for example N, N′-bis (3,5-di-tert-butyl-4-hydroxyphenylpropionyl) ) Hexamethylene diamide, N, N′-bis (3,5-di-tert-butyl-4-hydroxy-phenylpropionyl) trimethylene diamide, N, N′-bis (3,5-di-tert-butyl- 4-hydroxyphenylpropionyl) hydrazide, N, N′-bis [2- (3- [3,5-di-tert-butyl-4-hydroxyphenyl] propionyloxy) ethyl] oxamide (Naugard® XL— 1, supplier Uniroyal).

1.18 Ascorbic acid (vitamin C).

1.19 Amine-based antioxidants such as N, N′-di-isopropyl-p-phenylenediamine, N, N′-di-secondary butyl-p-phenylenediamine, N, N′-bis (1, 4-dimethylpentyl) -p-phenylenediamine, N, N′-bis (1-ethyl-3-methylpentyl) -p-phenylenediamine, N, N′-bis (1-methylheptyl) -p-phenylenediamine N, N′-dicyclohexyl-p-phenylenediamine, N, N′-diphenyl-p-phenylenediamine, N, N′-bis (2-naphthyl) -p-phenylenediamine, N-isopropyl-N′-phenyl -P-phenylenediamine, N- (1,3-dimethylbutyl) -N'-phenyl-p-phenylenediamine, N- (1-methylheptyl) -N'-phenyl-p-pheny Diamine, N-cyclohexyl-N′-phenyl-p-phenylenediamine, 4- (p-toluenesulfamoyl) diphenylamine, N, N′-dimethyl-N, N′-di-secondary butyl-p-phenylenediamine , Diphenylamine, N-allyldiphenylamine, 4-isopropoxydiphenylamine, N-phenyl-1-naphthylamine, N- (4-tert-octylphenyl) -1-naphthylamine, N-phenyl-2-naphthylamine, octylated diphenylamine, for example p, p′-di-tert-octyldiphenylamine, 4-n-butyl-aminophenol, 4-butyrylaminophenol, 4-nonanoylaminophenol, 4-dodecanoylaminophenol, 4-octadecanoylaminophenol, Bis (4-methoxyphenyl) Amine, 2,6-di-tert-butyl-4-dimethylaminomethylphenol, 2,4′-diaminodiphenylmethane, 4,4′-diaminodiphenylmethane, N, N, N ′, N′-tetramethyl-4, 4'-diaminodiphenylmethane, 1,2-bis [(2-methylphenyl) amino] ethane, 1,2-bis (phenylamino) propane, (o-tolyl) biguanide, bis [4- (1 ', 3' -Dimethylbutyl) phenyl] amine, tertiary octylated N-phenyl-1-naphthylamine, monoalkylated tertiary butyl / tertiary octyl diphenylamine and dialkylated tertiary butyl / tertiary octyl diphenylamine mixtures, monoalkylated nonyl diphenylamine And dialkylated nonyldiphenylamine mixtures, monoalkylated dodecyldiphenyl Mixtures of amines and dialkylated dodecyldiphenylamine, mixtures of monoalkylated isopropyl / isohexyldiphenylamine and dialkylated isopropyl / isohexyldiphenylamine, mixtures of monoalkylated tert-butyldiphenylamine and dialkylated tert-butyldiphenylamine, 2,3-dihydro 3,3-dimethyl-4H-1,4-benzothiazine, phenothiazine, monoalkylated tertiary butyl / tertiary octylphenothiazine and dialkylated tertiary butyl / tertiary octylphenothiazine, monoalkylated tertiary octyl-phenothiazine And mixtures of dialkylated tert-octyl-phenothiazines, N-allylphenothiazine, N, N, N ′, N′-tetraphenyl-1,4-diaminobut-2-ene.

上記式中、Ｒは、３’−第三ブチル−４’−ヒドロキシ−５’−２Ｈ−ベンゾトリアゾール−２−イルフェニル、２−［２’−ヒドロキシ−３’−（α，α−ジメチルベンジル）−５’−（１，１，３，３−テトラメチルブチル）−フェニル］−ベンゾトリアゾールである； ２−［２’−ヒドロキシ−３’−（１，１，３，３−テトラメチルブチル）−５’−（α，α−ジメチルベンジル）−フェニル］ベンゾトリアゾール。 2. UV absorbers and light stabilizers
2.1 2- (2′-hydroxyphenyl) benzotriazole , for example 2- (2′-hydroxy-5′-methylphenyl) -benzotriazole, 2- (3 ′, 5′-di-tert-butyl- 2'-hydroxyphenyl) benzotriazole, 2- (5'-tert-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5 '-(1,1,3,3-tetramethyl) Butyl) phenyl) benzotriazole, 2- (3 ′, 5′-di-tert-butyl-2′-hydroxyphenyl) -5-chloro-benzotriazole, 2- (3′-tert-butyl-2′-hydroxy) -5'-methylphenyl) -5-chloro-benzotriazole, 2- (3'-secondary butyl-5'-tert-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-4) '-O Octyloxyphenyl) benzotriazole, 2- (3 ′, 5′-di-tert-amyl-2′-hydroxyphenyl) benzotriazole, 2- (3 ′, 5′-bis- (α, α-dimethylbenzyl) -2'-hydroxyphenyl) benzotriazole, 2- (3'-tert-butyl-2'-hydroxy-5 '-(2-octyloxycarbonylethyl) phenyl) -5-chloro-benzotriazole, 2- (3 '-Tert-butyl-5'-[2- (2-ethylhexyloxy) -carbonylethyl] -2'-hydroxyphenyl) -5-chloro-benzotriazole, 2- (3'-tert-butyl-2'- Hydroxy-5 ′-(2-methoxycarbonylethyl) phenyl) -5-chloro-benzotriazole, 2- (3′-tert-butyl-2′-hydroxy-5 ′-(2-methoxycarboni) Ruethyl) phenyl) benzotriazole, 2- (3′-tert-butyl-2′-hydroxy-5 ′-(2-octyloxycarbonylethyl) phenyl) benzotriazole, 2- (3′-tert-butyl-5 ′ -[2- (2-ethylhexyloxy) carbonylethyl] -2'-hydroxyphenyl) benzotriazole, 2- (3'-dodecyl-2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (3 '-Tert-butyl-2'-hydroxy-5'-(2-isooctyloxycarbonylethyl) phenylbenzotriazole, 2,2'-methylene-bis [4- (1,1,3,3-tetramethylbutyl) -6-benzotriazol-2-ylphenol]; 2- [3'-tert-butyl-5 '-(2-methoxycarbonylethyl) -2'-hydroxyphene Le] -2H- transesterification product of a benzotriazole with polyethylene glycol 300;

In the above formula, R is 3′-tert-butyl-4′-hydroxy-5′-2H-benzotriazol-2-ylphenyl, 2- [2′-hydroxy-3 ′-(α, α-dimethylbenzyl). ) -5 ′-(1,1,3,3-tetramethylbutyl) -phenyl] -benzotriazole; 2- [2′-hydroxy-3 ′-(1,1,3,3-tetramethylbutyl) ) -5 ′-(α, α-dimethylbenzyl) -phenyl] benzotriazole.

2.2 2-Hydroxybenzophenone , for example 4-hydroxy, 4-methoxy, 4-octyloxy, 4-decyloxy, 4-dodecyloxy, 4-benzyloxy, 4,2 ′, 4′-trihydroxy and 2 ′ -Hydroxy-4,4'-dimethoxy derivative.

2.3 Substituted and unsubstituted benzoic acid esters such as 4-tert-butyl-phenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoylresorcinol, bis (4 -Tert-butylbenzoyl) resorcinol, benzoylresorcinol, 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate, hexadecyl 3,5-di-tert-butyl-4- Hydroxybenzoate, octadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate.

2.4 Acrylates such as ethyl α-cyano-β, β-diphenyl acrylate, isooctyl α-cyano-β, β-diphenyl acrylate, methyl α-carbomethoxycinnamate, methyl α-cyano-β-methyl-p- Methoxycinnamate, butyl α-cyano-β-methyl-p-methoxy-cinnamate, methyl α-carbomethoxy-p-methoxycinnamate, N- (β-carbomethoxy-β-cyanovinyl) -2-methylindoline, neo Pentyltetra (α-cyano-β, β-diphenyl acrylate.

2.5 Nickel compounds, for example, 2,2'-thio - bis [4- (1,1,3,3-tetramethyl - butyl) phenol] nickel complexes, for example 1: a 2 complex: 1 or 1 With or without additional ligands such as n-butylamine, triethanolamine or N-cyclohexyldiethanolamine, nickel dibutyldithiocarbamate, 4-hydroxy-3,5-di-tert-butylbenzylphosphonic acid Monoalkyl esters, such as nickel salts of methyl or ethyl esters, ketoximes, such as nickel complexes of 2-hydroxy-4-methylphenylundecyl ketoxime, nickel complexes of 1-phenyl-4-lauroyl-5-hydroxypyrazole, Have additional ligands, or have Casting.

2.6 Oxamides such as 4,4′-dioctyloxyoxanilide, 2,2′-diethoxyoxanilide, 2,2′-dioctyloxy-5,5′-di-tert-butoxanilide (tert- butoxanilide), 2,2′-didodecyloxy-5,5′-di-tert-butoxanilide, 2-ethoxy-2′-ethyloxanilide, N, N′-bis (3-dimethylaminopropyl) oxamide, 2-Ethoxy-5-tert-butyl-2′-ethoxanilide and its mixture with 2-ethoxy-2′-ethyl-5,4′-di-tert-butoxanilide, o-methoxy-disubstituted oxanilide And a mixture of p-methoxy-disubstituted oxanilide and a mixture of o-ethoxy-disubstituted oxanilide and p-ethoxy-disubstituted oxanilide Compound.

2.7 2- (2-hydroxyphenyl) -1,3,5-triazine , for example 2,4,6-tris (2-hydroxy-4-octyloxyphenyl) -1,3,5-triazine, 2 -(2-hydroxy-4-octyloxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2,4-dihydroxyphenyl) -4,6- Bis (2,4-dimethylphenyl) -1,3,5-triazine, 2,4-bis (2-hydroxy-4-propyloxyphenyl) -6- (2,4-dimethylphenyl) -1,3 5-triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4,6-bis (4-methylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4-dodecyloxyphenyl) ) -4 , 6-Bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4-tridecyloxyphenyl) -4,6-bis (2,4-dimethylphenyl)- 1,3,5-triazine, 2- [2-hydroxy-4- (2-hydroxy-3-butyloxypropoxy) phenyl] -4,6-bis (2,4-dimethyl) -1,3,5- Triazine, 2- [2-hydroxy-4- (2-hydroxy-3-octyloxypropyloxy) phenyl] -4,6-bis (2,4-dimethyl) -1,3,5-triazine, 2- [ 4- (dodecyloxy / tridecyloxy-2-hydroxypropoxy) -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- [2-hydroxy -4- 2-hydroxy-3-dodecyloxypropoxy) phenyl] -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4-hexyloxy) phenyl-4 , 6-Diphenyl-1,3,5-triazine, 2- (2-hydroxy-4-methoxyphenyl) -4,6-diphenyl-1,3,5-triazine, 2,4,6-tris [2- Hydroxy-4- (3-butoxy-2-hydroxypropoxy) phenyl] -1,3,5-triazine, 2- (2-hydroxyphenyl) -4- (4-methoxyphenyl) -6-phenyl-1,3 , 5-triazine, 2- {2-hydroxy-4- [3- (2-ethylhexyl-1-oxy) -2-hydroxypropyloxy] phenyl} -4,6-bis (2,4-dimethyl) Butylphenyl) -1,3,5-triazine, 2,4-bis (4- [2-ethylhexyl oxy] -2-hydroxyphenyl) -6- (4-methoxyphenyl) -1,3,5-triazine.

2.8 Quinoline derivatives , such as the commercially available UVINUL® S-Pack.

3. Metal deactivators such as N, N′-diphenyloxamide, N-salicyral-N′-salicyloylhydrazine, N, N′-bis (salicyloyl) hydrazine, N, N′-bis (3,5 -Di-tert-butyl-4-hydroxyphenylpropionyl) hydrazine, 3-salicyloylamino-1,2,4-triazole, bis (benzylidene) oxalyl dihydrazide, oxanilide, isophthaloyl dihydrazide, sebacoyl bisphenyl hydrazide, N, N′-diacetyladipoyl dihydrazide, N, N′-bis (salicyloyl) oxalyl dihydrazide, N, N′-bis (salicyloyl) thiopropionyl dihydrazide.

4). Phosphites and phosphonites such as triphenyl phosphite, diphenylalkyl phosphite, phenyldialkyl phosphite, tris (nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl pentaerythritol diphosphite, tris ( 2,4-di-tert-butylphenyl) phosphite, diisodecylpentaerythritol diphosphite, bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2,4-di-cumylphenyl) Pentaerythritol diphosphite, bis (2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite, diisodecyloxypentaerythritol diphosphite, bis (2 4-di-tert-butyl-6-methylphenyl) -pentaerythritol diphosphite, bis (2,4,6-tris (tertiarybutylphenyl) pentaerythritol diphosphite, tristearyl sorbitol triphosphite, tetrakis (2 , 4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite, 6-isooctyloxy-2,4,8,10-tetra-tert-butyl-12H-dibenz [d, g] -1 , 3,2-dioxaphosphocine, bis (2,4-di-tert-butyl-6-methylphenyl) methylphosphite, bis (2,4-di-tert-butyl-6-methylphenyl) ethylphos Fit, 6-fluoro-2,4,8,10-tetra-tert-butyl-12-methyl-dibenz [d, g] -1,3,2-dioxaphosphocine, 2,2 ′, 2 ″ -nitrilo- [triethyltris (3,3 ′, 5,5′-tetra-tert-butyl-1,1′-biphenyl-2,2′-diyl) phosphite], 2 -Ethylhexyl (3,3 ', 5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite, 5-butyl-5-ethyl-2- (2,4 , 6-Tri-tert-butylphenoxy) -1,3,2-dioxaphosphirane.

The following phosphites are particularly preferred:
Tris (2,4-di-tert-butylphenyl) phosphite (lrgafos® 168, Ciba Specialty Chemicals Inc), tris (nonylphenyl) phosphite,

5. Hydroxylamines such as N, N-dibenzylhydroxylamine, N, N-diethylhydroxylamine, N, N-dioctylhydroxylamine, N, N-dilaurylhydroxylamine, N, N-ditetradecylhydroxylamine, N N, N-dihexadecylhydroxylamine, N, N-dioctadecylhydroxylamine, N-hexadecyl-N-octadecylhydroxylamine, N-heptadecyl-N-octadecylhydroxylamine, N, N-dialkyl derived from hydrogenated tallowamine Hydroxylamine.

6). Nitrones such as N-benzyl-α-phenylnitrone, N-ethyl-α-methylnitrone, N-octyl-α-heptylnitrone, N-lauryl-α-undecylnitrone, N-tetradecyl-α-tridecylnitrone (Tridecyllntronone), N-hexadecyl-α-pentadecyl nitrone, N-octadecyl-α-heptadecyl nitrone, N-hexadecyl-α-heptadecyl nitrone, N-octadecyl-α-pentadecyl nitrone, N-heptadecyl-α- Hepta-decyl nitrone, N-octadecyl-α-hexadecyl nitrone, nitrone derived from N, N-dialkylhydroxyl-amine derived from hydrogenated tallowamine.

7). Thio synergists such as dilauryl thiodipropionate, dimyristyl thiodipropionate, distearyl thiodipropionate, or distearyl disulfide.

8). Peroxide scavengers such as esters of β-thiodipropionic acid, such as esters of lauryl, stearyl, myristyl or tridecyl, mercaptobenzimidazole or zinc salt of 2-mercaptobenzimidazole, zinc dibutyldithiocarbamate, dioctadecyl disulfide, Pentaerythritol tetrakis (β-dodecylmercapto) propionate.

9. Polyamide stabilizers such as combinations of copper salts with iodides and / or phosphorus compounds, and divalent manganese salts.

10. Basic co-stabilizers such as melamine, polyvinylpyrrolidone, dicyandiamide, triallyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyurethanes, alkali metal salts and alkaline earth metal salts of higher fatty acids such as calcium stearate, stearin Zinc acid, magnesium behenate, magnesium stearate, sodium ricinoleate and potassium palmitate, antimony pyrocatecholate or zinc pyrocatecholate.

11. Nucleating agents such as inorganic substances such as talc, metal oxides such as titanium dioxide or magnesium oxide, preferably alkaline earth metal phosphates, carbonates or sulfates; organic compounds such as monocarboxylic acids or polycarboxylic acids And their salts, such as 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymeric compounds such as ionic copolymers (ionomers). Particularly preferably, 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol, 1,3: 2,4-di (paramethyldibenzylidene) sorbitol, and 1,3: 2,4 -Di (benzylidene) sorbitol.

12 Fillers and reinforcing agents such as calcium carbonate, silicates, glass fibers, glass beads, asbestos, talc, kaolin, mica, barium sulfate, metal oxides and metal hydroxides, carbon black, graphite, wood flour and other natural Powder, fiber, synthetic fiber.

13. Other additives such as plasticizers, lubricants, emulsifiers, pigments, flow additives, catalysts, flow control agents, flameproofing agents, antistatic agents and swelling agents.

14 Benzofuranone and indolinone , for example, U.S. Pat. No. 4,325,863; U.S. Pat. No. 4,338,244; U.S. Pat. No. 5,175,312; U.S. Pat. No. 5,216,052; Published Patent Application No. 4316611; German Patent Application Publication No. 4316622; German Patent Application Publication No. 4316876; European Patent Application Publication No. 0589898, European Patent Application Publication No. 0591102 And those disclosed in EP-A-1291384, or 3- [4- (2-acetoxyethoxy) phenyl] -5,7-di-tert-butylbenzofuran-2-one, 5 , 7-di-tert-butyl-3- [4- (2-ste Royloxy-ethoxy) phenyl] benzofuran-2-one, 3,3′-bis [5,7-di-tert-butyl-3- (4- [2-hydroxyethoxy] phenyl) benzofuran-2-one], 5 , 7-Di-tert-butyl-3- (4-ethoxyphenyl) benzofuran-2-one, 3- (4-acetoxy-3,5-dimethylphenyl) -5,7-di-tert-butylbenzofuran-2 -One, 3- (3,5-dimethyl-4-pivaloyloxyphenyl) -5,7-di-tert-butylbenzofuran-2-one, 3- (3,4-dimethylphenyl) -5,7 -Di-tert-butylbenzofuran-2-one, 3- (2,3-dimethylphenyl) -5,7-di-tert-butylbenzofuran-2-one, 3- (2-acetyl-5-isooctylphenyl) ) -5-Isoocti - benzofuran-2-one.

  In general, the customary additives are, for example, in amounts of 0.001 to 20% or 0.01 to 20%, preferably 0.001 to 5% or 0.01 to 5%, based on the mass of component (A). And may be present in the optical film according to the present invention.

The subject of the present invention is
(D) a benzotriazole UV absorber, preferably as described above in item 2.1;
(E) a phenolic antioxidant, preferably as described above in item 1;
(F) pigments, preferably TiO ₂ ,
(G) fillers, such as those described above in item 12, in particular TiO _2, and (H) a fluorescent whitening agent, such as 2,5-thiophenediylbis (5-tert-butyl-1,3 Benzokisa Sol) or 2,2 ′-(vinylene di-p-phenylene) bis (benzoxazole) is an optical film containing one or more other components selected from the group consisting of.

Particularly preferred benzotriazole UV absorbers have the following structure:

  This compound is commercially available as TINUVIN® 360.

  In the optical film according to the invention, component (B) is present, for example, in an amount of 0.05 to 10%, preferably 0.5 to 2%, relative to component (A).

  Component (C) is preferably present in an amount of 0.01 to 5%, in particular 0.1 to 0.5%, based on component (A).

  Component (D) is preferably present in an amount of 0.05 to 10%, in particular 0.5 to 2%, based on component (A).

  Component (E) is preferably present in an amount of 0.01 to 1%, in particular 0.01 to 0.5%, based on component (A).

  Component (F) is optionally present in an amount of preferably 0.01 to 10%, relative to component (A).

  Component (G) is preferably present in an amount of 1 to 70%, in particular 1 to 50%, based on component (A).

  Component (H) is optionally present in an amount of preferably 0.0001 to 10%, relative to component (A).

  The mass ratio of two different compounds selected from the group consisting of compounds of the formulas (BI) and (B-II) is for example 1:20 to 20: 1, preferably 1:10 to 10: 1 or 1: 5 to 5: 1, in particular 1: 3 to 3: 1 or 1: 2 to 2: 1 or 1: 1.

  The optical film (or plaque) according to the invention has a thickness of, for example, 10 to 2000 μm, in particular 50 to 200 μm.

  The optical film according to the present invention has excellent optical properties such as optical transparency, eg mechanical strength sufficient to avoid the shrinkage of polarizers with high shrinkability, high temperatures applied during processing. Withstand heat resistance.

  The optical film according to the invention preferably has a light transmission at a wavelength of 280 to 380 nm of less than 5%.

  In the optical film according to the invention, the volatilization amount of component (B) when maintained at 300 ° C. is preferably less than 2% by weight, in particular less than 1% by weight.

  The optical film according to the invention preferably has a low haze value (measured with a film of 20 μm), for example less than 1, according to ASTM D 1003.

  If necessary, the optical film may be uniaxially or biaxially oriented.

  The optical film according to the present invention can be produced by a conventional method well known to those skilled in the art; for example, produced by a solution casting method, a melt molding method such as melt extrusion molding, pressure molding or injection molding. Can be done.

  The method of incorporating the component (B) according to the present invention and optionally other additives into the optical film is not particularly limited and is well known to those skilled in the art. For example, blending of compounds of formulas (BI) and (B-II) into thermoplastic resins or master batches of compounds of formulas (BI) and (B-II) for blending into the resins The use can be mentioned. For example, it is possible to feed the compounds of formulas (BI) and (B-II) during melt extrusion; similarly, any of the above methods may be used.

  If necessary, the optical film according to the present invention can be subjected to surface corona treatment. This is advantageous for improving mutual adhesion; particularly when providing a surface treatment, for example a coating treatment on the film surface, or when laminating another film by the use of an adhesive. It is.

  Furthermore, a preferred embodiment according to the invention is an optical film having a coating layer on one or both sides, for example 0.1 to 10 μm, in particular 1 to 5 μm.

  This coating layer can contain, for example, an organic resin, an inorganic silicone composite resin or a silicone-based material.

  Examples of the organic resin are melamine resin, acrylic resin, urethane resin, alkyd resin, and fluorine-containing resin.

  Examples of the organic silicone composite resin are products formed by blending a partially hydrolyzed product of alkyltrialkoxysilane or tetraalkoxysilane with polyester polyol or etherified methylol melamine.

  Examples of the above silicone-based materials are partial hydrolysates of aminosilanes or epoxysilanes, partial hydrolysates of silane coupling agents and alkyltrialkoxysilane tetraalkoxysilanes, hydrolysates of colloidal silica and alkyltrialkoxysilanes. Includes things.

  If necessary, the coating layer can contain various fillers. For example: caused by light interference between transparent electrodes when forming a transparent conductive layer and a liquid crystal display (LCD) protective film at the time of delay and then using this protective film as an electrode film for a resistive overlay touch panel Generation of Newton rings or blocking between transparent conductive substrates can be avoided by adding an appropriate filler.

  Examples of fillers are organic fillers based on polymethacrylates, polyacrylates, polyolefins, polystyrene, divinylbenzene, benzoguanamine or organosilicones, and inorganic fillers based on silica, alumina or titanium oxide. is there.

  Furthermore, one embodiment of the present invention is a flat panel display that includes an optical film as defined herein. The flat panel display is preferably a liquid crystal display or a plasma display. Such displays are well known to those skilled in the art. Such displays are used, for example, in flat screen TV's, personal computers (notebooks and desktops), mobile phones, personal digital assistants (PALM), video cameras, car navigation systems and games.

A typical LCD panel includes the following layers:
Coating layer,
Protective film,
Polarizing film,
Protective film,
Delay film (which can be combined with protective film),
Color filter,
Delay film (which can be combined with protective film),
Protective film,
Polarizing film,
Protective film,
DBEF (Dual brightness Enhancement Film),
BEF (brightness enhancement film),
Prism sheet,
Diffuser film,
Diffuser plate (multilayered),
CCFL (Cold Cathode Floureschent Light cold cathode fluorescent lamp) or LED (Light Emitting Diode)
Reflective film.

  One preferred embodiment of the present invention relates to a flat panel display which is a liquid crystal display, wherein at least one film selected from the group consisting of a reflective film, a diffuser film, a retardation film and a protective film is provided herein. An optical film as defined in the book.

The reflective film can include one or more additives selected from the group consisting of, for example, pigments, fillers, optical brighteners, antistatic agents, nucleating agents, dispersants and slip agents. Polyolefin (eg, polyethylene, polypropylene, polymethylpentene, polybutane, cyclic olefin polymer), polystyrene, polyacrylate, polyester, fluoropolymer or styrene polymer organic particles, and CaCO ₃ , ZnCO ₃ , TiO ₂ , ZnS, Sb ₂ O ₃ , inorganic particles of MgO, silica, mica, talc, kaolin or BaSO ₄ are particularly preferred.

Diffuser plate contains eg _{glass, SiO 2, Al (OH)} 3, CaCO 3, BaSO 4, TiO 2, polystyrene, one or more additives selected from the group that consists of polyacrylate and polysiloxane be able to.

The retardation film and protective film are, for example, from the group consisting of flame retardants, dispersants, lubricants, antioxidants, metal deactivators, SiC, TiO ₂ , SnO ₂ , BeO, SnO ₂ and Al ₂ O _3. One or more selected additives may be included.

  Another embodiment of the present invention is the use of component (B) as defined above for improving the UV resistance of at least one optical film present in a flat panel display.

  Another embodiment of the present invention is a composition comprising components (A), (B) and optionally (C) as defined above. All preferred points noted above for the optical film may be applied to the composition in any suitable manner.

  The following examples illustrate the invention in more detail. All percentages and parts are by weight unless otherwise indicated.

添加剤（Ｂ−Ｉ−ｃ）：
（TINUVIN（登録商標）1577）

添加剤（Ｂ−ＩＩ−ｂ）：
（TINUVIN（登録商標）460）

添加剤（Ｂ−ＩＩ−ｃ）：
（TINUVIN（登録商標）477）

添加剤（Ｃ−ＩＩ−ａ）：
（CHIMASSORB（登録商標）119）

Additives tested:
Additive (BIa):

Additive (B-Ic):
(TINUVIN (registered trademark) 1577)

Additive (B-II-b):
(TINUVIN (registered trademark) 460)

Additive (B-II-c):
(TINUVIN (registered trademark) 477)

Additive (C-II-a):
(CHIMASSORB (registered trademark) 119)

Measurement of synergy:
The synergistic effect of the two auxiliary additives ((α) and (β)) is measured by comparing the calculated YI (Yellowness Index Yellowness Index) with the measured YI. The YI value is calculated using the following equation (B. Ranby and JF Rabek; Phtodegradation, Photooxidation and Photostabilization of Polymers, Principles and Applications, John Wiley & Sons, London, New York, Sydney, Toronto, 1975, pages 418 and 419) is calculated based on:

There is a synergistic effect for the two auxiliary additives when YI _measured <YI _calculated .

Example 1: Stabilization of injection molded styrene / methyl methacrylate copolymer plaque Commercial styrene / methyl methacrylate copolymer (Estyrene® MS 200 manufactured by Nippon Steel Chemical Co., Ltd.) Mix with the additives shown in Table 1 in a blender and compound at 220 ° C. with a twin screw extruder. A 2 mm plate of compounded material is produced by an injection molding machine (barrel temperature: 220 ° C .; mold temperature: 50 ° C.).

  The accelerated weathering test is performed using an Atlas Ci65A® weatherometer (= WOM) operating in dry mode (ASTM G 26 C).

  After regular intervals, the yellowness index (YI) according to DIN 6167 is measured using a Spectraflash® SF 600 Plus. The results are shown in Tables 1 and 2.

Example 2 Stabilization of Cyclic Olefin Polymer Film 10 g of commercial cyclic olefin polymer (Zeonex® 480 R manufactured by Nippon Zeon Co., Ltd.) was mixed with chloroform (70%), cyclohexane (20 %) And toluene (10%) in 40 g with the additives shown in Table 3 at room temperature. Next, 5 g of this solution is poured onto the crystal plate and the solution is evenly applied onto the crystal plate at room temperature by an Erichsen® casting machine. After 10 minutes of solvent evaporation, a 20 μm solution cast film is obtained.

  The accelerated weathering test is performed using an Atlas Ci65A® weatherometer (= WOM) operating in dry mode (ASTM G 26 C).

  After regular intervals, the yellowness index (YI) according to DIN 6167 is measured using a Spectraflash® SF 600 Plus. The results are shown in Table 3.

Example 3: Stabilization of poly (methyl methacrylate) 10 g of a cyclic olefin polymer (Plaxiglas® 7 N manufactured by Evonik) was added at room temperature with the additives indicated in Table 4 in 40 g of dichloromethane. Dissolve. Next, 5 g of this solution is poured onto the crystal plate and the solution is evenly applied onto the crystal plate at room temperature by an Erichsen® casting machine. After 10 minutes of solvent evaporation, a 20 μm solution cast film is obtained.

  The accelerated weathering test is performed using an Atlas Ci65A® weatherometer (= WOM) operating in dry mode (ASTM G 26 C).

  After regular intervals, the yellowness index (YI) according to DIN 6167 is measured using a Spectraflash® SF 600 Plus. The results are shown in Table 4.

Example 4 Stabilization of Extruded Film Specimens of Polycarbonate A ground commercial polycarbonate (Makrolon® 3108 FBL manufactured by Bayer Material Science) was placed at 120 ° C. in a vacuum dryer (Vacutherm 1400). And is mixed with the compounds shown in Table 5 at 80 ° C. in an internal mixer (MTI / M20 FU). This mixture is compounded at 280 ° C. using a twin screw extruder (Berstorff ZE 25 × 32D). After drying for 6 hours at 120 ° C., the composition is blended again at 280 ° C. using a twin screw extruder (Berstorff ZE 25 × 32D). After further drying this composition at 120 ° C. for 6 hours, a 0.1 mm film is obtained at 280 ° C. using an extruder (ColMn CR-136 / 350).

  The accelerated weathering test is performed using an Atlas Ci65A® weatherometer (= WOM) operating in wet mode (ASTM G 26 A).

  At the start and after 257 hours, the yellowness index (YI) is measured using a Spectraflash SF 600 Plus according to DIN 6167.

  The results are shown in Table 5.

Claims (15)

The following component (A) thermoplastic polymer;
(B) Formulas (B-II) and (B-II):

[Wherein E ₁ is selected from the group consisting of hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OX ₁ and —OC (O) X _2. C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 selected groups, provided that X ₁ and X ₂ are independently C ₁ -C ₁₈ alkyl; interrupted by oxygen C ₃ -C ₅₀ alkyl or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen, E ₂ , E ₃ , E ₄ and E ₅ are independently hydrogen, C ₁ -C ₁₈ alkyl, phenyl Or a phenyl substituted by _1, 2 or 3 C ₁ -C ₄ alkyl];

Wherein A ₁ , A ₂ , A ₃ and A ₄ are independently hydrogen, C ₁ -C ₁₈ alkyl, —OH, C ₂ -C ₁₈ alkenyloxy, —C (O) OY ₁ and —OC (O) C ₁ -C ₁₈ alkyl substituted by 1, 2 or 3 groups selected from the group consisting of Y ₂ , wherein Y ₁ and X ₂ are independently C ₁ ˜C ₁₈ alkyl; C ₃ -C ₅₀ alkyl interrupted by oxygen or C ₃ -C ₅₀ hydroxyalkyl interrupted by oxygen]. A mixture containing two or more different compounds;
And (C) an optical film for flat panel displays having at least one 2,2,6,6-tetramethylpiperidine derivative;   The optical film according to claim 1, wherein component (A) is polystyrene, styrene copolymer, cyclic olefin homopolymer, cyclic olefin copolymer, polyester or polycarbonate.   The optical film of claim 1, wherein component (A) is a styrene / methyl methacrylate copolymer, poly (methyl methacrylate) or a cyclic olefin polymer.   The optical film according to claim 1, wherein component (B) is a mixture of a compound of formula (BI) and a compound of formula (B-II). The compound of formula (BI) is represented by the formula (BIa), (BIb), (BIc), (BIId), (BIee). Or a compound of (B-I-f), wherein the compound of formula (B-II) is a compound of formula (B-II-a), (B-II-b) or (B-II-c) is there:

The optical film according to claim 1.   The component (B) is a mixture of the compounds (B-Ia) and (B-II-b) or a mixture of the compounds (B-I-c) and (B-II-c). The optical film as described. Compound (C) is compounded with the formula (C-Ia), (C-Ib), (C-Ic), (C-Id), (C-II), (C-I- III) or (C-IV) compounds,

In the above formula, b ₁ is a number of 2 to 20, and the group R ₁ is independently hydrogen, C _{1 to} C ₈ alkyl, O, —OH, —CH ₂ CN, C _{1 to} C ₁₈ alkoxy, C ₅ -C ₁₂ cycloalkoxy, C ₃ -C ₆ alkenyl, C ₇ -C ₉ phenylalkyl unsubstituted or substituted on phenyl by ₁ , 2 or 3 C ₁ -C ₄ alkyl ; or C ₁ -C ₈ acyl;

In the above formula, the group R ₂ independently has _one of the meanings of R ₁ ,

In the above formula, b ₂ is 2-20, the group R ₃ independently has _one of the meanings of R ₁ ,

In the above formula, R ₄ is hydrogen or C ₁ -C ₄ alkyl,
The optical film according to claim 1, wherein R ₅ is a direct bond or C ₁ -C ₁₀ alkylene, and b ₃ is a number from 2 to 20.   The optical film of Claim 1 containing a component (A), (B) and (C). (D) a benzotriazole UV absorber,
(E) a phenolic antioxidant,
The optical film according to claim 1, comprising one or more other components selected from the group consisting of (F) a pigment and (G) a filler.   The optical film according to claim 1, which has a thickness of 10 to 2000 μm.   A flat panel display comprising an optical film as defined in claim 1.   The flat panel display of claim 1, which is a liquid crystal display (LCD) or a plasma display.   The optical film according to claim 1, wherein the film is a liquid crystal display, and at least one film selected from the group consisting of a reflective film, a diffusion film, a delay film and a protective film, and a front film is the optical film according to claim 1. Flat panel display.   Use of component (B) as defined in claim 1 for improving the UV resistance of at least one optical film present in a flat panel display.   A composition comprising components (A), (B) and optionally (C) as defined in claim 1.