FR2473538A1 - Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication - Google Patents

Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication Download PDF

Info

Publication number
FR2473538A1
FR2473538A1 FR8022717A FR8022717A FR2473538A1 FR 2473538 A1 FR2473538 A1 FR 2473538A1 FR 8022717 A FR8022717 A FR 8022717A FR 8022717 A FR8022717 A FR 8022717A FR 2473538 A1 FR2473538 A1 FR 2473538A1
Authority
FR
France
Prior art keywords
coo
formula
nematic liquid
acid
liquid crystalline
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
Application number
FR8022717A
Other languages
English (en)
French (fr)
Other versions
FR2473538B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Dietrich Demus
Wolfgang Weissflog
Horst Zaschke
Rudolf Wolff
Horst Kresse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WERK FERNSEHELEKTRONIK KOMB MIKR
Werk fuer Fernsehelektronik GmbH
Original Assignee
WERK FERNSEHELEKTRONIK KOMB MIKR
Werk fuer Fernsehelektronik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DD21841080A external-priority patent/DD158177A3/de
Application filed by WERK FERNSEHELEKTRONIK KOMB MIKR, Werk fuer Fernsehelektronik GmbH filed Critical WERK FERNSEHELEKTRONIK KOMB MIKR
Publication of FR2473538A1 publication Critical patent/FR2473538A1/fr
Application granted granted Critical
Publication of FR2473538B1 publication Critical patent/FR2473538B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40

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)
FR8022717A 1980-01-11 1980-10-23 Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication Granted FR2473538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD21841180 1980-01-11
DD21841080A DD158177A3 (de) 1980-01-11 1980-01-11 Kristallin-fluessige nematische gemische

Publications (2)

Publication Number Publication Date
FR2473538A1 true FR2473538A1 (fr) 1981-07-17
FR2473538B1 FR2473538B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1983-11-25

Family

ID=25747678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8022717A Granted FR2473538A1 (fr) 1980-01-11 1980-10-23 Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication

Country Status (5)

Country Link
US (1) US4363767A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH648339A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3046872A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2473538A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2067188B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221462A1 (de) * 1981-06-18 1983-01-05 F. Hoffmann-La Roche & Co AG, 4002 Basel Fluessigkristallines gemisch
US4528114A (en) * 1981-12-18 1985-07-09 Hoffmann-La Roche Inc. Acetylenes
US4512636A (en) * 1982-06-15 1985-04-23 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdon Of Great Britian And Northern Ireland Of Whitehall Liquid crystal compounds
EP0122389B1 (de) * 1983-03-16 1987-08-05 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Flüssigkristallkomponenten mit einer Alkenylseitenkette
US5252252A (en) * 1983-09-10 1993-10-12 Merck Patent Gesellschaft Mit Beschraenkter Haftung Anisotropic compounds and liquid crystal mixtures
DE3332692A1 (de) * 1983-09-10 1985-03-28 Merck Patent Gmbh, 6100 Darmstadt Anisotrope verbindungen und fluessigkristallmischungen
EP0167912B1 (de) * 1984-07-12 1990-01-03 F. Hoffmann-La Roche Ag Flüssigkristalline Gemische enthaltend Komponenten mit einer 4-Alkenyl- oder 2Z-Alkenyl-Seitenkette
US5238602A (en) * 1984-07-16 1993-08-24 Hoffmann La Roche Inc. Liquid crystals
CA1336441C (en) * 1987-12-28 1995-07-25 Manabu Uchida Liquid crystal composition
JPH08283226A (ja) * 1995-04-14 1996-10-29 Chisso Corp アクリロニトリル誘導体、液晶組成物および液晶表示素子

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544577A1 (de) * 1974-10-30 1976-05-06 Werk Fernsehelektronik Veb Kristallin-fluessige nematische substanzen
FR2377441A1 (fr) * 1977-01-14 1978-08-11 Thomson Csf Nouvelle famille de cristaux liquides de proprietes ameliorees, et dispositifs utilisant de tels cristaux liquides

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544577A1 (de) * 1974-10-30 1976-05-06 Werk Fernsehelektronik Veb Kristallin-fluessige nematische substanzen
FR2377441A1 (fr) * 1977-01-14 1978-08-11 Thomson Csf Nouvelle famille de cristaux liquides de proprietes ameliorees, et dispositifs utilisant de tels cristaux liquides

Also Published As

Publication number Publication date
DE3046872A1 (de) 1981-09-17
DE3046872C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-06-01
FR2473538B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1983-11-25
GB2067188A (en) 1981-07-22
US4363767A (en) 1982-12-14
GB2067188B (en) 1984-02-29
CH648339A5 (de) 1985-03-15

Similar Documents

Publication Publication Date Title
US4261651A (en) Liquid crystal compounds
US4921632A (en) Liquid crystal compounds and compositions
US4261652A (en) Liquid crystal compounds and materials and devices containing them
US4849130A (en) Liquid crystalline ethane derivatives, their preparation and the liquid crystal compositions containing same
US4298528A (en) Cyclohexyl-dioxane liquid crystalline compounds
US4364838A (en) Liquid crystal mixtures
FR2473538A1 (fr) Melange en cristaux liquides de l'ester du 4-(2,2-dicyan-ethenyl)-phenol et procede pour leur fabrication
FR2466496A1 (fr) Esters formant des cristaux liquides et dispositifs electro-optiques utilisant lesdits esters
US4886622A (en) Optically active liquid crystal compound having cyano group
EP0044759B1 (fr) Cristal liquide smectique de type A présentant une anisotropie diélectrique positive
Ivashchenko et al. New Mesogenic Compounds with a Large Dielectric Anisotropy
FR2533560A1 (fr) Benzoates de chloro-3 cyano-4 phenyle 4'-substitues utiles comme cristaux liquides
EP0236215B1 (fr) Difluoro-2,2' Alcoxy-4 Hydroxy-4' biphenyles et leurs dérivés, leur procédé de fabrication et leur utilisation dans des dispositifs d'affichage à cristeaux liquides
US5167862A (en) Alpha-hydroxy carboxylic acid derivates suitable for use in liquid crystal materials and devices
FR2496117A1 (fr) Composition de cristaux liquides
US5378393A (en) Glassy chiral nematic liquid crystalline compositions of low molar mass and optical devices formed from same
WO2004083335A2 (en) Glassy chiral-nematic liquid crystals and optical devices containing same
Amilaprasadh Norbert et al. The Synthesis, Mesomorphic Behaviour and the Uniaxial Nature of 1, 2, 4, 5-Tetra-(4-Alkoxybenzoyloxy) Benzenes
EP0239444A1 (fr) Cristal liquide ferroélectrique, son procédé de fabrication et son utilisation dans un mélange de cristaux liquides
Yao et al. λ-shaped to T-shaped azo diester mesogens having methyl (–CH3)/methoxy (–OCH3) terminal substituents with trisubstituted benzene
JP4947676B2 (ja) フェニルアセチレン化合物、液晶組成物及び液晶又は光学用素子
Simion et al. Unsymmetrical bent-core liquid crystals based on resorcinol core
EP0427166A1 (en) Ester compounds and liquid crystal compositions containing the same
FR2487830A1 (fr) Derives de l'azo-2,2' imidazole, procede de preparation desdits derives, matiere a base de cristal liquide contenant lesdits derives et dispositif electro-optique utilisant ladite matiere
FR2503703A1 (fr) Nouveaux derives du phenol, leur procede de preparation, materiau a base de cristaux liquides a anisotropie dielectrique negative, procede de preparation de ce materiau, materiau a base de cristaux liquides a inversion basse frequence du signe d'anisotropie dielectrique et procede de preparation de ce dernier

Legal Events

Date Code Title Description
ST Notification of lapse