JP5989082B2 - 染料系偏光素子及び偏光板 - Google Patents
染料系偏光素子及び偏光板 Download PDFInfo
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- JP5989082B2 JP5989082B2 JP2014502139A JP2014502139A JP5989082B2 JP 5989082 B2 JP5989082 B2 JP 5989082B2 JP 2014502139 A JP2014502139 A JP 2014502139A JP 2014502139 A JP2014502139 A JP 2014502139A JP 5989082 B2 JP5989082 B2 JP 5989082B2
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- Prior art keywords
- dye
- polarizing element
- polarizing
- film
- polarizing plate
- Prior art date
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- 239000000975 dye Substances 0.000 claims description 71
- 239000011347 resin Substances 0.000 claims description 45
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- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 32
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 32
- -1 azo compound Chemical class 0.000 claims description 26
- 239000011241 protective layer Substances 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 description 39
- 239000000243 solution Substances 0.000 description 22
- 230000010287 polarization Effects 0.000 description 20
- 239000003431 cross linking reagent Substances 0.000 description 18
- 230000008569 process Effects 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000000853 adhesive Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
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- 239000004327 boric acid Substances 0.000 description 10
- 238000004043 dyeing Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 9
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
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- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 6
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000011630 iodine Substances 0.000 description 6
- 229910052740 iodine Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
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- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N alpha-ketodiacetal Natural products O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 4
- 229960004050 aminobenzoic acid Drugs 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
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- 239000013053 water resistant agent Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 150000001299 aldehydes Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
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- 239000011118 polyvinyl acetate Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 2
- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 2
- WHQOKFZWSDOTQP-UHFFFAOYSA-N 2,3-dihydroxypropyl 4-aminobenzoate Chemical compound NC1=CC=C(C(=O)OCC(O)CO)C=C1 WHQOKFZWSDOTQP-UHFFFAOYSA-N 0.000 description 2
- CUGZWHZWSVUSBE-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxy)ethanol Chemical compound OCCOCC1CO1 CUGZWHZWSVUSBE-UHFFFAOYSA-N 0.000 description 2
- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 description 2
- FDGAEAYZQQCBRN-UHFFFAOYSA-N 3-amino-4-methoxybenzoic acid Chemical compound COC1=CC=C(C(O)=O)C=C1N FDGAEAYZQQCBRN-UHFFFAOYSA-N 0.000 description 2
- MKTOIPPVFPJEQO-UHFFFAOYSA-N 4-(3-carboxypropanoylperoxy)-4-oxobutanoic acid Chemical compound OC(=O)CCC(=O)OOC(=O)CCC(O)=O MKTOIPPVFPJEQO-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000000987 azo dye Substances 0.000 description 2
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 150000001639 boron compounds Chemical class 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 229940015043 glyoxal Drugs 0.000 description 2
- 229920001477 hydrophilic polymer Polymers 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
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- 239000005056 polyisocyanate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- JRBJSXQPQWSCCF-UHFFFAOYSA-N 3,3'-Dimethoxybenzidine Chemical compound C1=C(N)C(OC)=CC(C=2C=C(OC)C(N)=CC=2)=C1 JRBJSXQPQWSCCF-UHFFFAOYSA-N 0.000 description 1
- XKFIFYROMAAUDL-UHFFFAOYSA-N 3-amino-4-methylbenzoic acid Chemical compound CC1=CC=C(C(O)=O)C=C1N XKFIFYROMAAUDL-UHFFFAOYSA-N 0.000 description 1
- MDIOOMYYSWKVTE-UHFFFAOYSA-N 4-amino-3-chloro-5-methoxybenzoic acid Chemical compound COC1=CC(C(O)=O)=CC(Cl)=C1N MDIOOMYYSWKVTE-UHFFFAOYSA-N 0.000 description 1
- DFFMMDIDNCWQIV-UHFFFAOYSA-N 4-amino-3-methoxybenzenesulfonic acid Chemical group COC1=CC(S(O)(=O)=O)=CC=C1N DFFMMDIDNCWQIV-UHFFFAOYSA-N 0.000 description 1
- BQVLLTHCZQAJNH-UHFFFAOYSA-N 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid Chemical compound OC1=CC(S(O)(=O)=O)=CC2=CC(NC=3C=C4C=C(C=C(C4=CC=3)O)S(O)(=O)=O)=CC=C21 BQVLLTHCZQAJNH-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920000856 Amylose Polymers 0.000 description 1
- 241000694440 Colpidium aqueous Species 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
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- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
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- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
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- 229910003002 lithium salt Inorganic materials 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 1
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- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- WPPDXAHGCGPUPK-UHFFFAOYSA-N red 2 Chemical compound C1=CC=CC=C1C(C1=CC=CC=C11)=C(C=2C=3C4=CC=C5C6=CC=C7C8=C(C=9C=CC=CC=9)C9=CC=CC=C9C(C=9C=CC=CC=9)=C8C8=CC=C(C6=C87)C(C=35)=CC=2)C4=C1C1=CC=CC=C1 WPPDXAHGCGPUPK-UHFFFAOYSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
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- 238000001308 synthesis method Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/04—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound
- C09B33/048—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound the coupling component being a bis-naphthol
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Description
本発明は、ポリビニルアルコール樹脂またはその誘導体及び二色性染料を含有し、延伸してなるフィルムからなる偏光素子であって、該二色性染料の少なくとも一つが遊離酸の形式で式(1)で示されるアゾ化合物又はその塩であることを特徴とする該偏光素子であって、良好な偏光特性を有し、かつ、高い耐久性をも有することが特徴である。式(1)に示される染料の少なくとも一つをポリビニルアルコール系フィルムに含有させ、延伸されてなるフィルムであることによって特徴を達成しうる。
(式中、Aは、置換基として、少なくとも1つのカルボキシ基を有するフェニル基を示す。)
式(1)で表されるアゾ化合物又はその塩は、非特許文献2に記載されるような通常のアゾ染料の製法に従い、カップリングを行うことにより容易に製造できる。具体的な製造方法としては、例えば、式(20)で表されるアミノ化合物を公知の方法でジアゾ化し、N,N−ビス(1−ヒドロキシ−3−スルホ−6−ナフチル)アミン(慣用名:ジJ酸)に10〜20℃でアルカリカップリングしてジスアゾ化合物を得て、式(1)の化合物を含有する溶液を得る。
洗浄方法は、該溶液に浸漬することが好ましいが、該溶液をポリビニルアルコール系樹脂フィルムに塗布することによって洗浄することも出来る。洗浄の時間は、特に限定されないが、好ましくは1〜300秒、より好ましくは1〜60秒である。洗浄工程1での溶媒の温度は、親水性高分子が溶解しない温度であることが必要となる。一般的には5〜40℃で洗浄処理される。
<染料の作製>
4−アミノ−安息香酸14.6部を水145部に溶かし35重量%の塩酸26部を含む水140部中に加え15〜20℃で亜硝酸ナトリウム6.9部を加えて1時間かけてジアゾ化する。次いでこれをN,N−ビス(1−ヒドロキシ−3−スルホ−6−ナフチル)アミン慣用名:ジJ酸)31.5部、水125部、ソーダ灰11部とからなる水溶液中に加え、更にソーダ灰溶液を注加しながら、pH8.5〜9.5を保ち、20℃で3時間かけて斑点テストでジスアゾ化合物が認められなくなるまでカップリングを行い、ジスアゾ化合物を得た。得られた溶液にサヌキ塩を加えて塩析し、ろ過し、60℃で蒸発乾固させて本願の式(4)で示される染料を作製した。
ケン化度が99%以上の膜厚75μmのポリビニルアルコール系樹脂フィルム(クラレ社製 VFシリーズ)を40℃の温水に2分浸漬し膨潤処理をした。膨潤処理したフィルムを、本願の式(4)で示される染料 0.05重量%、トリポリ燐酸ナトリウム0.1重量%を含有した45℃の水溶液に浸漬し、染料の吸着を行った。染料が吸着されたフィルムを水にて洗浄し、洗浄の後、2重量%のホウ酸を含有した40℃の水溶液で1分間ホウ酸処理を行った。ホウ酸処理して得られたフィルムを、5.0倍に延伸しながらホウ酸3.0重量%を含有した55℃の水溶液中で5分間処理を行った。そのホウ酸処理して得られたフィルムの緊張状態を保ちつつ、30℃の水で15秒間洗浄を行った。処理して得られたフィルムを直ちに70℃で9分間乾燥処理を行い膜厚28μmの偏光素子とし、測定試料とした。
実施例A−1において、4−アミノ−安息香酸を、3−アミノ−4−メチル安息香酸16.2部に代えて、本願式(10)で示される染料を作製した以外は同様にして、偏光素子とし、測定試料とした。
実施例A−1において、4−アミノ−安息香酸を、3−アミノ−4−メトキシ安息香酸 17.9部に代えて、本願式(16)で示される染料を作製した以外は同様にして、偏光素子とし、測定試料とした。
実施例A−1において、4−アミノ−安息香酸を、3−メトキシ−4−アミノ−5−クロロ安息香酸 19.8重量部に代えて、本願式(19)で示される染料を作製した以外は同様にして、偏光素子とし、測定試料とした。
実施例A−1において用いた本願式(2)で示される染料を、非特許文献1で示されるジスアゾ染料であるC.I.Direct81に代えた以外は同様にして偏光素子とし、測定試料とした。
実施例A−1において用いた本願式(2)で示される染料を、特公平7−92531の実施例1に示されるジスアゾ染料に代えた以外は同様にして偏光素子とし、測定試料とした。
実施例A−1において用いた本願式(2)で示される染料を、特開昭63−189803の実施例No.16に示されるジスアゾ染料に代えた以外は同様にして偏光素子とし、測定試料とした。
実施例A−1において用いた本願式(2)で示される染料を、特許2985408号の化合物例番号8に示される染料に代えた以外は同様にして偏光素子とし、測定試料とした。
実施例A−1において、3−アミノ−4−メトキシ安息香酸を、3−メトキシ−4−アミノベンゼンスルホン酸に代えて、下記式(21)で示されるジJ酸を有するジスアゾ染料を作製した以外は同様にして、偏光素子とし、測定試料とした。
<耐光性試験>
実施例A−3で得られた偏光素子をアルカリ処理した膜厚80μmのトリアセチルセルロースフィルム(富士写真フィルム社製 TD−80U、以下TACと省略)をポリビニルアルコール系接着剤を用いて、偏光素子/接着層/TACという構成で積層し、ラミネートして偏光板を得た。
実施例B−3で用いた偏光素子A−3を、比較例B−1で得られた偏光素子に代えた以外は同様にして、光に対する耐久性試験を行った。
実施例B−3で用いた偏光素子A−3を、比較例B−2で得られた偏光素子に代えた以外は同様にして、光に対する耐久性試験を行った。
実施例B−3で用いた偏光素子A−3を、比較例B−3で得られた偏光素子に代えた以外は同様にして、光に対する耐久性試験を行った。
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US2583519A (en) * | 1944-12-19 | 1952-01-22 | Ciba Ltd | Azo-dyestuffs |
GB662253A (en) * | 1948-07-16 | 1951-12-05 | Ciba Ltd | Manufacture of new tetrakisazo-dyestuffs |
CH364061A (de) * | 1957-11-06 | 1962-08-31 | Durand & Huguenin Ag | Verfahren zur Herstellung neuer, metallisierbarer Azofarbstoffe |
CA1269555A (en) * | 1984-11-16 | 1990-05-29 | Sumitomo Chemical Company, Limited | Light-polarizing film |
JPH078376B2 (ja) | 1987-06-26 | 1995-02-01 | 株式会社神戸製鋼所 | 押出プレスのシャ−装置 |
JPH0718192A (ja) * | 1993-07-02 | 1995-01-20 | Nippon Kayaku Co Ltd | 含銅アゾ化合物及びそれを用いて染色する方法 |
JP3680323B2 (ja) * | 1993-10-14 | 2005-08-10 | 住友化学株式会社 | 染料系偏光膜 |
JP3769140B2 (ja) | 1998-03-20 | 2006-04-19 | 住友化学株式会社 | 偏光フィルム |
JP2003313451A (ja) | 2002-04-26 | 2003-11-06 | Sumitomo Chem Co Ltd | アゾ化合物又はその塩、及びそれらの偏光膜への適用 |
JP4270486B2 (ja) | 2002-08-09 | 2009-06-03 | 日本化薬株式会社 | トリスアゾ化合物、水性インク組成物及び着色体 |
JP4828932B2 (ja) * | 2005-12-22 | 2011-11-30 | 伊藤光学工業株式会社 | 偏光プラスチックレンズの成形型及び成形方法 |
JP4448183B2 (ja) * | 2007-09-28 | 2010-04-07 | 日東電工株式会社 | 偏光板、その製造方法、光学フィルムおよび画像表示装置 |
WO2009054376A1 (ja) * | 2007-10-24 | 2009-04-30 | Nitto Denko Corporation | 偏光板、光学フィルムおよび画像表示装置 |
CN102066497B (zh) * | 2008-06-17 | 2014-02-26 | 日本化药株式会社 | 偶氮化合物及其盐、以及包含其的染料基偏振膜和偏振片 |
WO2012137736A1 (ja) * | 2011-04-07 | 2012-10-11 | 日本化薬株式会社 | 水溶性アゾ染料、それを含む染料組成物及びそれらを用いる染色方法 |
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WO2013129170A1 (ja) | 2013-09-06 |
TW201344257A (zh) | 2013-11-01 |
JPWO2013129170A1 (ja) | 2015-07-30 |
KR20140138603A (ko) | 2014-12-04 |
HK1202930A1 (zh) | 2015-10-09 |
TWI569047B (zh) | 2017-02-01 |
CN104160305A (zh) | 2014-11-19 |
CN104160305B (zh) | 2016-04-13 |
KR101949190B1 (ko) | 2019-02-18 |
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