GB2017742A - Liquid crystal materials - Google Patents
Liquid crystal materialsInfo
- Publication number
- GB2017742A GB2017742A GB7906182A GB7906182A GB2017742A GB 2017742 A GB2017742 A GB 2017742A GB 7906182 A GB7906182 A GB 7906182A GB 7906182 A GB7906182 A GB 7906182A GB 2017742 A GB2017742 A GB 2017742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- image
- liquid crystal
- compound
- general formula
- crystal materials
- 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
- 239000000463 material Substances 0.000 title abstract 2
- 239000004973 liquid crystal related substance Substances 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract 4
- 125000003545 alkoxy group Chemical group 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 229940126062 Compound A Drugs 0.000 abstract 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 abstract 1
- 239000004988 Nematic liquid crystal Substances 0.000 abstract 1
- 125000004093 cyano group Chemical group *C#N 0.000 abstract 1
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Abstract
A nematic liquid crystal composition comprises at least one compound A of the general formula: <IMAGE> mixed with at least one compound B of the general formula: <IMAGE> and/or with at least one compound C of the general formula: <IMAGE> where R1, R2 and R3 are alkyl groups and may be the same or different and R4 is a cyano group, an alkyl group or an alkoxy group. Other components, e.g. <IMAGE> modified compounds B and C where R2 and R3 are alkoxy, or a pleochroic dye "guest" material may be present. The preparation of compounds A-C and modified compounds B and C is described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7906182A GB2017742B (en) | 1979-02-21 | 1979-02-21 | Liquid crystal materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7906182A GB2017742B (en) | 1979-02-21 | 1979-02-21 | Liquid crystal materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2017742A true GB2017742A (en) | 1979-10-10 |
| GB2017742B GB2017742B (en) | 1982-08-18 |
Family
ID=10503349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7906182A Expired GB2017742B (en) | 1979-02-21 | 1979-02-21 | Liquid crystal materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2017742B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0023728A1 (en) * | 1979-07-18 | 1981-02-11 | MERCK PATENT GmbH | Anisotropic compounds with negative or positive direct anisotropy and limited optical anisotropy, and liquid crystal mixtures containing them |
| US4261652A (en) * | 1978-08-04 | 1981-04-14 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compounds and materials and devices containing them |
| US4309304A (en) * | 1979-11-01 | 1982-01-05 | Exxon Research & Engineering Co. | Liquid crystal compositions for multiplexed displays |
| US4328116A (en) * | 1979-11-01 | 1982-05-04 | Minnesota Mining And Manufacturing Company | Liquid crystal compositions for multiplexed displays |
| US4337999A (en) * | 1977-08-29 | 1982-07-06 | Sharp Corporation | Fluorescent liquid crystal display compositions and devices |
| US4372871A (en) * | 1977-12-16 | 1983-02-08 | Dainippon Ink And Chemicals, Inc. | Nematic liquid crystals for display devices |
| US4391730A (en) * | 1979-08-09 | 1983-07-05 | Veb Werk Fuer Fernsehelektronik Berlin Im Veb Kombinat Mikroelektronik | Nematic liquid crystal compounds and use and device for using the same |
| US4398803A (en) * | 1980-06-19 | 1983-08-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Liquid crystal display element |
| US4483595A (en) * | 1981-03-13 | 1984-11-20 | The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compositions |
| US4522470A (en) * | 1982-07-05 | 1985-06-11 | Epson Corporation | Liquid crystal composition and display device |
| US4525033A (en) * | 1978-06-08 | 1985-06-25 | Kabushiki Kaisha Suwa Seikosha | Liquid crystal compound and compositions containing same |
| US4556745A (en) * | 1981-02-13 | 1985-12-03 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compounds |
| US4577931A (en) * | 1982-05-26 | 1986-03-25 | Epson Corporation | Liquid crystal composition |
| US4588518A (en) * | 1978-08-30 | 1986-05-13 | Hitachi, Ltd. | Nematic liquid crystal composition for display devices |
| EP0681020A3 (en) * | 1994-04-14 | 1996-05-01 | Chisso Corp | A nematic liquid crystal composition. |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427569A (en) | 1980-12-18 | 1984-01-24 | Hughes Aircraft Company | Short length ester liquid crystal mixtures and process for making same |
-
1979
- 1979-02-21 GB GB7906182A patent/GB2017742B/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4337999A (en) * | 1977-08-29 | 1982-07-06 | Sharp Corporation | Fluorescent liquid crystal display compositions and devices |
| US4372871A (en) * | 1977-12-16 | 1983-02-08 | Dainippon Ink And Chemicals, Inc. | Nematic liquid crystals for display devices |
| US4525033A (en) * | 1978-06-08 | 1985-06-25 | Kabushiki Kaisha Suwa Seikosha | Liquid crystal compound and compositions containing same |
| US4261652A (en) * | 1978-08-04 | 1981-04-14 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compounds and materials and devices containing them |
| US4588518A (en) * | 1978-08-30 | 1986-05-13 | Hitachi, Ltd. | Nematic liquid crystal composition for display devices |
| EP0023728A1 (en) * | 1979-07-18 | 1981-02-11 | MERCK PATENT GmbH | Anisotropic compounds with negative or positive direct anisotropy and limited optical anisotropy, and liquid crystal mixtures containing them |
| US4391730A (en) * | 1979-08-09 | 1983-07-05 | Veb Werk Fuer Fernsehelektronik Berlin Im Veb Kombinat Mikroelektronik | Nematic liquid crystal compounds and use and device for using the same |
| US4309304A (en) * | 1979-11-01 | 1982-01-05 | Exxon Research & Engineering Co. | Liquid crystal compositions for multiplexed displays |
| US4328116A (en) * | 1979-11-01 | 1982-05-04 | Minnesota Mining And Manufacturing Company | Liquid crystal compositions for multiplexed displays |
| US4398803A (en) * | 1980-06-19 | 1983-08-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Liquid crystal display element |
| US4556745A (en) * | 1981-02-13 | 1985-12-03 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compounds |
| US4483595A (en) * | 1981-03-13 | 1984-11-20 | The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal compositions |
| US4577931A (en) * | 1982-05-26 | 1986-03-25 | Epson Corporation | Liquid crystal composition |
| US4522470A (en) * | 1982-07-05 | 1985-06-11 | Epson Corporation | Liquid crystal composition and display device |
| EP0681020A3 (en) * | 1994-04-14 | 1996-05-01 | Chisso Corp | A nematic liquid crystal composition. |
| US5686018A (en) * | 1994-04-14 | 1997-11-11 | Chisso Corporation | Nematic liquid crystal composition |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2017742B (en) | 1982-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Effective date: 19990220 |