FR2294223A1 - Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-aniline - Google Patents
Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-anilineInfo
- Publication number
- FR2294223A1 FR2294223A1 FR7441234A FR7441234A FR2294223A1 FR 2294223 A1 FR2294223 A1 FR 2294223A1 FR 7441234 A FR7441234 A FR 7441234A FR 7441234 A FR7441234 A FR 7441234A FR 2294223 A1 FR2294223 A1 FR 2294223A1
- Authority
- FR
- France
- Prior art keywords
- alkyl
- aniline
- benzylidene
- alkoxy
- contg
- 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
Classifications
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- 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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/56—Aligning agents
-
- 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
- C09B55/00—Azomethine dyes
- C09B55/001—Azomethine dyes forming a 1,2 complex metal compound, e.g. with Co or Cr, with an other dye, e.g. with an azo or azomethine dye
-
- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/22—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
Electro-optical liq. crystal element, contg. a nematic liq. crystal matl. with +ve dielectric anistropty, consists of one or more p-n-alkyl-benzylidene-p'-cyanoanilines, pref. having formula p-NC-C6H4-N=CH-C6H4-p-R (I) (where R is 3-6C n-alkyl), and one or more p-n-alkyl-cyanobenzenes, (II) (pref. in whch n-alkyl contains 3-6C) and/or p-alkyl-benzylidene-p'-alkoxy-anilines, pref. having formula p-R"2-O-C6H4-N=CH-C6H4-p-R'3, (III), (where R"2 and R'3 are Me, Et or 3-8 n-alkyl) and/or p-alkoxy-benzylidene-p'-n-alkyl anilines, (IV), (pref. contg. MeO or EtO and n-butyl or n-heptyl gps.). The elements are useful as indicator devices esp. of twist-nematic type for electronic clocks and multiplex driver systems. Elements with twist effect have a reduced operational voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7441234A FR2294223A1 (en) | 1974-12-13 | 1974-12-13 | Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-aniline |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7441234A FR2294223A1 (en) | 1974-12-13 | 1974-12-13 | Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-aniline |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2294223A1 true FR2294223A1 (en) | 1976-07-09 |
FR2294223B1 FR2294223B1 (en) | 1978-05-12 |
Family
ID=9146167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7441234A Granted FR2294223A1 (en) | 1974-12-13 | 1974-12-13 | Electro-optical liquid crystal element - contg p-N-alkyl-benzylidine-p'-cyano-aniline, alkyl-cyanobenzene, alkyl-benzylidene-alkoxy-aniline and or alkoxy benzylidene-alkyl-aniline |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2294223A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2179841A1 (en) * | 1972-04-10 | 1973-11-23 | Ncr Co | |
FR2202731A1 (en) * | 1972-10-17 | 1974-05-10 | Matsushita Electric Ind Co Ltd |
-
1974
- 1974-12-13 FR FR7441234A patent/FR2294223A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2179841A1 (en) * | 1972-04-10 | 1973-11-23 | Ncr Co | |
FR2202731A1 (en) * | 1972-10-17 | 1974-05-10 | Matsushita Electric Ind Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
FR2294223B1 (en) | 1978-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |