IT1226547B - Cristalli liquidi piramidali. - Google Patents

Cristalli liquidi piramidali.

Info

Publication number
IT1226547B
IT1226547B IT8821308A IT2130888A IT1226547B IT 1226547 B IT1226547 B IT 1226547B IT 8821308 A IT8821308 A IT 8821308A IT 2130888 A IT2130888 A IT 2130888A IT 1226547 B IT1226547 B IT 1226547B
Authority
IT
Italy
Prior art keywords
pyramid
liquid crystals
crystals
liquid
pyramid liquid
Prior art date
Application number
IT8821308A
Other languages
English (en)
Other versions
IT8821308A0 (it
Inventor
Enrico Dalcanale
Stefanio Bonsignore
Giuseppe Cometti
Annick Du Vosel
Original Assignee
Montedison Spa
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
Application filed by Montedison Spa filed Critical Montedison Spa
Priority to IT8821308A priority Critical patent/IT1226547B/it
Publication of IT8821308A0 publication Critical patent/IT8821308A0/it
Priority to EP89112598A priority patent/EP0350842B1/en
Priority to DE8989112598T priority patent/DE68903440T2/de
Priority to ES198989112598T priority patent/ES2041900T3/es
Priority to JP1178907A priority patent/JPH02111737A/ja
Application granted granted Critical
Publication of IT1226547B publication Critical patent/IT1226547B/it

Links

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
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/115—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using acetals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00—Systems containing at least three condensed rings
    • C07C2603/92—Systems containing at least three condensed rings with a condensed ring system consisting of at least two mutually uncondensed aromatic ring systems, linked by an annular structure formed by carbon chains on non-adjacent positions of the aromatic system, e.g. cyclophanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Liquid Crystal Substances (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
IT8821308A 1988-07-11 1988-07-11 Cristalli liquidi piramidali. IT1226547B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8821308A IT1226547B (it) 1988-07-11 1988-07-11 Cristalli liquidi piramidali.
EP89112598A EP0350842B1 (en) 1988-07-11 1989-07-10 Pyramidal liquid crystals
DE8989112598T DE68903440T2 (de) 1988-07-11 1989-07-10 Pyramidenfoermige fluessigkristalle.
ES198989112598T ES2041900T3 (es) 1988-07-11 1989-07-10 Procedimiento de preparacion de cristales liquidos piramidales.
JP1178907A JPH02111737A (ja) 1988-07-11 1989-07-11 錐形液晶

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8821308A IT1226547B (it) 1988-07-11 1988-07-11 Cristalli liquidi piramidali.

Publications (2)

Publication Number Publication Date
IT8821308A0 IT8821308A0 (it) 1988-07-11
IT1226547B true IT1226547B (it) 1991-01-24

Family

ID=11179872

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8821308A IT1226547B (it) 1988-07-11 1988-07-11 Cristalli liquidi piramidali.

Country Status (5)

Country Link
EP (1) EP0350842B1 (it)
JP (1) JPH02111737A (it)
DE (1) DE68903440T2 (it)
ES (1) ES2041900T3 (it)
IT (1) IT1226547B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8906031D0 (en) * 1989-03-16 1989-04-26 Ici Plc Compound
IT1230943B (it) * 1989-06-28 1991-11-08 Tecnopart Srl Cristalli liquidi piramidali ferroelettrici.
DE4011804A1 (de) * 1990-04-12 1991-10-24 Hoechst Ag Verwendung von makrocyclischen verbindungen als komponente fuer ferroelektrische fluessigkristallmischungen
IT1238230B (it) * 1989-12-06 1993-07-12 Tecnopart Srl Miscele di cristalli liquidi colonnari piramidali e procedimento per la loro preparazione
IT1248713B (it) * 1990-06-08 1995-01-26 Siac It Additivi Carburanti Composizioni di idrocarburi di raffinazione dotate di migliorata fluidita' alle basse termperature
DE59205336D1 (de) * 1991-08-17 1996-03-28 Hoechst Ag Schaltbare kolumnare flüssigkristalline Systeme
JP6701611B2 (ja) * 2017-10-05 2020-05-27 Dic株式会社 液晶組成物及び液晶表示素子

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1222085B (it) * 1987-07-21 1990-08-31 Montedison Spa Tetrameri ciclici liquido cristallini

Also Published As

Publication number Publication date
EP0350842A3 (en) 1990-05-16
DE68903440D1 (de) 1992-12-17
ES2041900T3 (es) 1993-12-01
DE68903440T2 (de) 1993-05-27
IT8821308A0 (it) 1988-07-11
EP0350842A2 (en) 1990-01-17
EP0350842B1 (en) 1992-11-11
JPH02111737A (ja) 1990-04-24

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930714