JPS60228568A - 液晶用二色性染料 - Google Patents
液晶用二色性染料Info
- Publication number
- JPS60228568A JPS60228568A JP8503184A JP8503184A JPS60228568A JP S60228568 A JPS60228568 A JP S60228568A JP 8503184 A JP8503184 A JP 8503184A JP 8503184 A JP8503184 A JP 8503184A JP S60228568 A JPS60228568 A JP S60228568A
- Authority
- JP
- Japan
- Prior art keywords
- group
- liquid crystal
- dichroic dye
- lower alkyl
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title description 83
- 125000000217 alkyl group Chemical group 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 15
- 239000001257 hydrogen Substances 0.000 claims description 15
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 9
- 125000004390 alkyl sulfonyl group Chemical group 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 125000004414 alkyl thio group Chemical group 0.000 claims description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000005031 thiocyano group Chemical group S(C#N)* 0.000 claims description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 5
- 239000000975 dye Substances 0.000 description 101
- -1 monoazo compound Chemical class 0.000 description 37
- 238000005859 coupling reaction Methods 0.000 description 27
- 230000008878 coupling Effects 0.000 description 22
- 238000010168 coupling process Methods 0.000 description 22
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 21
- 150000001875 compounds Chemical class 0.000 description 19
- 239000000203 mixture Substances 0.000 description 19
- 239000011541 reaction mixture Substances 0.000 description 18
- 239000000758 substrate Substances 0.000 description 15
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 11
- 238000006193 diazotization reaction Methods 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 239000002244 precipitate Substances 0.000 description 9
- 238000004040 coloring Methods 0.000 description 7
- 239000012954 diazonium Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 150000001989 diazonium salts Chemical class 0.000 description 6
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- GGSUCNLOZRCGPQ-UHFFFAOYSA-N diethylaniline Chemical compound CCN(CC)C1=CC=CC=C1 GGSUCNLOZRCGPQ-UHFFFAOYSA-N 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- AVMNFQHJOOYCAP-UHFFFAOYSA-N acetic acid;propanoic acid Chemical compound CC(O)=O.CCC(O)=O AVMNFQHJOOYCAP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 239000004305 biphenyl Substances 0.000 description 3
- 235000010290 biphenyl Nutrition 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000005457 ice water Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- IXXLKTZOCSRXEM-UHFFFAOYSA-N 3-(n-methylanilino)propanenitrile Chemical compound N#CCCN(C)C1=CC=CC=C1 IXXLKTZOCSRXEM-UHFFFAOYSA-N 0.000 description 2
- RXQNKKRGJJRMKD-UHFFFAOYSA-N 5-bromo-2-methylaniline Chemical compound CC1=CC=C(Br)C=C1N RXQNKKRGJJRMKD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 150000008049 diazo compounds Chemical class 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VQTGUFBGYOIUFS-UHFFFAOYSA-N nitrosylsulfuric acid Chemical compound OS(=O)(=O)ON=O VQTGUFBGYOIUFS-UHFFFAOYSA-N 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 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
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 1
- VDQQJMHXZCMNMU-UHFFFAOYSA-N 1-phenylpyrrolidine Chemical compound C1CCCN1C1=CC=CC=C1 VDQQJMHXZCMNMU-UHFFFAOYSA-N 0.000 description 1
- WYRNRZQRKCXPLA-UHFFFAOYSA-N 3-(n-ethylanilino)propanenitrile Chemical compound N#CCCN(CC)C1=CC=CC=C1 WYRNRZQRKCXPLA-UHFFFAOYSA-N 0.000 description 1
- FHQRDEDZJIFJAL-UHFFFAOYSA-N 4-phenylmorpholine Chemical compound C1COCCN1C1=CC=CC=C1 FHQRDEDZJIFJAL-UHFFFAOYSA-N 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- 241000287462 Phalacrocorax carbo Species 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 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
- 239000000987 azo dye Substances 0.000 description 1
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- WORJEOGGNQDSOE-UHFFFAOYSA-N chloroform;methanol Chemical compound OC.ClC(Cl)Cl WORJEOGGNQDSOE-UHFFFAOYSA-N 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- GCFAUZGWPDYAJN-UHFFFAOYSA-N cyclohexyl 3-phenylprop-2-enoate Chemical compound C=1C=CC=CC=1C=CC(=O)OC1CCCCC1 GCFAUZGWPDYAJN-UHFFFAOYSA-N 0.000 description 1
- IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical compound C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical class [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- DUYAAUVXQSMXQP-UHFFFAOYSA-N ethanethioic S-acid Chemical compound CC(S)=O DUYAAUVXQSMXQP-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- NBJBFKVCPBJQMR-APKOLTMOSA-N nff 1 Chemical compound C([C@H](NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCCN)NC(=O)[C@@H]1CCCN1C(=O)CC=1C2=CC=C(C=C2OC(=O)C=1)OC)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCNC=1C(=CC(=CC=1)[N+]([O-])=O)[N+]([O-])=O)C(=O)NCC(O)=O)C1=CC=CC=C1 NBJBFKVCPBJQMR-APKOLTMOSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- KKVTYAVXTDIPAP-UHFFFAOYSA-M sodium;methanesulfonate Chemical compound [Na+].CS([O-])(=O)=O KKVTYAVXTDIPAP-UHFFFAOYSA-M 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- FZMJEGJVKFTGMU-UHFFFAOYSA-N triethoxy(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC FZMJEGJVKFTGMU-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8503184A JPS60228568A (ja) | 1984-04-26 | 1984-04-26 | 液晶用二色性染料 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8503184A JPS60228568A (ja) | 1984-04-26 | 1984-04-26 | 液晶用二色性染料 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60228568A true JPS60228568A (ja) | 1985-11-13 |
| JPH0549710B2 JPH0549710B2 (enrdf_load_stackoverflow) | 1993-07-27 |
Family
ID=13847330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8503184A Granted JPS60228568A (ja) | 1984-04-26 | 1984-04-26 | 液晶用二色性染料 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60228568A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668050A (en) * | 1983-05-04 | 1987-05-26 | Casio Computer Co., Ltd. | Method of using liquid crystal device comprising dichroic dye and liquid crystal device |
| US4843153A (en) * | 1986-07-02 | 1989-06-27 | Basf Aktiengesellschaft | Azo dyes containing thienothiophene radicals as radicals of the diazo component |
| US4959172A (en) * | 1987-06-04 | 1990-09-25 | Mitsubishi Kasei Corporation | Liquid crystal composition containing a pleochroic azo type compound |
| JP2009215442A (ja) * | 2008-03-11 | 2009-09-24 | Osaka Prefecture Univ | アゾ系二色性色素 |
| JP2022073665A (ja) * | 2020-11-02 | 2022-05-17 | 住友化学株式会社 | 化合物、組成物、膜、積層体および表示装置 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11997916B2 (en) | 2019-02-08 | 2024-05-28 | Toyobo Co., Ltd. | Polyester film and use thereof |
| EP3923263A4 (en) | 2019-02-08 | 2022-11-09 | Toyobo Co., Ltd. | FOLDABLE SCREEN AND PORTABLE TERMINAL EQUIPMENT |
| CN113874191B (zh) | 2019-05-28 | 2024-03-12 | 东洋纺株式会社 | 聚酯薄膜及其用途 |
| US11899167B2 (en) | 2019-05-28 | 2024-02-13 | Toyobo Co., Ltd. | Polyester film, laminated film, and use thereof |
| EP3978243A4 (en) | 2019-05-28 | 2023-06-14 | Toyobo Co., Ltd. | TRANSPARENT CONDUCTIVE POLYESTER FILM AND ITS USE |
| WO2020241278A1 (ja) | 2019-05-28 | 2020-12-03 | 東洋紡株式会社 | 積層フィルムとその用途 |
| KR20220011703A (ko) | 2019-05-30 | 2022-01-28 | 도요보 가부시키가이샤 | 폴딩형 디스플레이용 편광판 |
| EP3978967A4 (en) | 2019-05-30 | 2023-07-12 | Toyobo Co., Ltd. | Foldable display |
| CN114127829B (zh) | 2019-07-12 | 2023-12-26 | 东洋纺株式会社 | 折叠型显示器用硬涂薄膜和其用途 |
| WO2021010158A1 (ja) | 2019-07-12 | 2021-01-21 | 東洋紡株式会社 | 折りたたみ型ディスプレイ用ハードコートフィルムとその用途 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1533260A (en) * | 1976-11-08 | 1978-11-22 | Ici Ltd | Water soluble azo dyestuffs |
| GB1549185A (en) * | 1976-07-21 | 1979-08-01 | Ici Ltd | Monoazo dyestuffs |
-
1984
- 1984-04-26 JP JP8503184A patent/JPS60228568A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1549185A (en) * | 1976-07-21 | 1979-08-01 | Ici Ltd | Monoazo dyestuffs |
| GB1533260A (en) * | 1976-11-08 | 1978-11-22 | Ici Ltd | Water soluble azo dyestuffs |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668050A (en) * | 1983-05-04 | 1987-05-26 | Casio Computer Co., Ltd. | Method of using liquid crystal device comprising dichroic dye and liquid crystal device |
| US4843153A (en) * | 1986-07-02 | 1989-06-27 | Basf Aktiengesellschaft | Azo dyes containing thienothiophene radicals as radicals of the diazo component |
| US4959172A (en) * | 1987-06-04 | 1990-09-25 | Mitsubishi Kasei Corporation | Liquid crystal composition containing a pleochroic azo type compound |
| JP2009215442A (ja) * | 2008-03-11 | 2009-09-24 | Osaka Prefecture Univ | アゾ系二色性色素 |
| JP2022073665A (ja) * | 2020-11-02 | 2022-05-17 | 住友化学株式会社 | 化合物、組成物、膜、積層体および表示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0549710B2 (enrdf_load_stackoverflow) | 1993-07-27 |
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