IT1075295B - Miscele di cristalli liquidi - Google Patents

Miscele di cristalli liquidi

Info

Publication number
IT1075295B
IT1075295B IT20634/77A IT2063477A IT1075295B IT 1075295 B IT1075295 B IT 1075295B IT 20634/77 A IT20634/77 A IT 20634/77A IT 2063477 A IT2063477 A IT 2063477A IT 1075295 B IT1075295 B IT 1075295B
Authority
IT
Italy
Prior art keywords
mixtures
liquid crystals
crystals
liquid
Prior art date
Application number
IT20634/77A
Other languages
English (en)
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Priority claimed from KR7801678A external-priority patent/KR810001671B1/ko
Application granted granted Critical
Publication of IT1075295B publication Critical patent/IT1075295B/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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/48—Preparation of compounds having groups
    • C07C41/50—Preparation of compounds having groups by reactions producing groups
    • C07C41/54—Preparation of compounds having groups by reactions producing groups by addition of compounds to unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/30—Compounds having groups
    • C07C43/303—Compounds having groups having acetal carbon atoms bound to acyclic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/515—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised hydroxyl group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/26—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Liquid Crystal Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT20634/77A 1976-02-26 1977-02-24 Miscele di cristalli liquidi IT1075295B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH237276 1976-02-26
CH883276 1976-07-09
CH1599576 1976-12-20
KR7801678A KR810001671B1 (ko) 1976-12-20 1978-06-02 액정(液晶) 혼합물

Publications (1)

Publication Number Publication Date
IT1075295B true IT1075295B (it) 1985-04-22

Family

ID=27428423

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20634/77A IT1075295B (it) 1976-02-26 1977-02-24 Miscele di cristalli liquidi

Country Status (9)

Country Link
US (1) US4180475A (it)
JP (1) JPS52103387A (it)
DE (1) DE2708276A1 (it)
DK (1) DK81377A (it)
FR (1) FR2353626A1 (it)
GB (1) GB1579041A (it)
IT (1) IT1075295B (it)
NL (1) NL7701750A (it)
SE (1) SE7702138L (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815860A1 (de) * 1977-04-15 1978-10-19 Hoffmann La Roche Fluessigkristalline mischungen
US4198130A (en) * 1977-06-03 1980-04-15 Hoffmann-La Roche Inc. Liquid crystal mixtures
JPS5534206A (en) * 1978-08-30 1980-03-10 Hitachi Ltd Nematic liquid crystal for display unit
CA1120478A (en) * 1979-02-05 1982-03-23 Arthur Boller Cyclohexyl pyrimidines
DE2927277A1 (de) * 1979-07-06 1981-01-08 Merck Patent Gmbh Cyclohexylbiphenyle, verfahren zu ihrer herstellung, diese enthaltende dielektrika und elektrooptisches anzeigeelement
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
US4293193A (en) * 1979-08-15 1981-10-06 Temple University Amine-substituted liquid crystal compositions
US4364838A (en) * 1979-11-14 1982-12-21 Hoffmann-La Roche Inc. Liquid crystal mixtures
DE2948836A1 (de) * 1979-12-05 1981-06-11 Merck Patent Gmbh, 6100 Darmstadt Partiell hydrierte oligo-1,4-phenylene, diese enthaltende dielektrika und elektrooptisches anzeigeelement
US4335011A (en) * 1980-03-28 1982-06-15 Timex Corporation Cyclohexyl-dioxane liquid crystalline compounds
DE3201721A1 (de) * 1981-01-30 1982-08-19 F. Hoffmann-La Roche & Co. AG, 4002 Basel Disubstituierte aethane
JPS588779A (ja) * 1981-07-08 1983-01-18 Hitachi Ltd 液晶表示装置
US4482472A (en) * 1981-08-06 1984-11-13 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britian And Northern Ireland Liquid crystal materials
GB8302395D0 (en) * 1983-01-28 1983-03-02 Secr Defence Liquid crystal materials
JPS59219381A (ja) * 1983-05-26 1984-12-10 Sharp Corp 液晶組成物
US4788000A (en) * 1983-05-26 1988-11-29 Sharp Kabushiki Kaisha Liquid-crystal composition
US4725688A (en) * 1984-06-07 1988-02-16 Seiko Instruments Inc. Liquid crystal compound
US4654162A (en) * 1984-08-13 1987-03-31 Chisso Corporation Alcohol derivatives
DD234278A1 (de) * 1985-01-28 1986-03-26 Univ Halle Wittenberg Schaltzeitverkuerzende dotierungen fuer kristallin-fluessige gemische
FR2588011B1 (fr) * 1985-10-02 1988-06-24 Commissariat Energie Atomique Melanges comportant un cristal liquide nematique et un compose non mesomorphe
JPS6351494A (ja) * 1986-08-19 1988-03-04 Fuji Photo Film Co Ltd 液晶光学素子
US5250220A (en) * 1989-08-12 1993-10-05 Merck Patent Gesellschaft Mit Beschrankter Haftung 2,5-disubstituted heterocyclic compounds, and a liquid-crystalline medium
JP3652997B2 (ja) * 2000-06-14 2005-05-25 Ｎｅｃ液晶テクノロジー株式会社 液晶材料及び液晶表示装置
EP3343285B1 (en) * 2015-08-25 2021-02-17 LG Chem, Ltd. Liquid crystal cell

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960749A (en) * 1971-02-09 1976-06-01 International Liquid Xtal Company Liquid-crystal mixtures for use in liquid-crystal displays
US3923857A (en) * 1972-02-23 1975-12-02 Hoffmann La Roche Liquid crystal esters
US3927064A (en) * 1972-02-23 1975-12-16 Hoffmann La Roche Benzylidene-aminobenzonitriles
GB1384662A (en) * 1972-04-05 1975-02-19 Matsushita Electric Ind Co Ltd Liquid crystal composition
US3951845A (en) * 1972-06-23 1976-04-20 General Electric Company Nematic liquid crystal mixtures having homogeneous boundary conditions and method of making the same
US3972589A (en) * 1972-06-23 1976-08-03 General Electric Company Nematic liquid crystal mixtures with stable homeotropic boundary conditions and methods of making the same
US4011173A (en) * 1972-08-03 1977-03-08 Merck Patent Gesellschaft Mit Beschrankter Haftung Modified nematic mixtures with positive dielectric anisotropy
US4038200A (en) * 1972-08-07 1977-07-26 Texas Instruments Incorporated Lyotropic nematic liquid crystals for use in electro-optical display devices
US3815972A (en) * 1972-08-09 1974-06-11 Olivetti & Co Spa Low voltage liquid crystal display
JPS5719156B2 (it) * 1972-08-11 1982-04-21
JPS4945886A (it) * 1972-09-07 1974-05-01
US3826757A (en) * 1972-09-18 1974-07-30 Hughes Aircraft Co Room temperature nematic liquid crystals
GB1393216A (en) * 1972-10-05 1975-05-07 Werk Fernsehelektronik Veb Liquid crystalline nematic substance comprising diesters of 2-substituted hydroquinone and applications thereof
GB1433130A (en) * 1972-11-09 1976-04-22 Secr Defence Substituted biphenyl and polyphenyl compounds and liquid crystal materials and devices containing them
NL7414352A (nl) * 1973-11-19 1975-05-21 Hoffmann La Roche Vloeibaarkristallijne bifenylen.
US4000084A (en) * 1973-12-17 1976-12-28 Hughes Aircraft Company Liquid crystal mixtures for electro-optical display devices
IT1025415B (it) * 1973-12-17 1978-08-10 Hoffmann La Roche Composti liquidi cristallini
US3983049A (en) * 1974-05-02 1976-09-28 General Electric Company Liquid crystal compositions with positive dielectric anisotropy
GB1472836A (en) * 1974-08-06 1977-05-11 Matsushita Electric Ind Co Ltd Nematic liquid crystal substances containing schiff bases derived from 2-substituted-1,4-phenylene-diamine
CH617452A5 (it) * 1974-10-25 1980-05-30 Hoffmann La Roche
US4059340A (en) * 1974-11-18 1977-11-22 Bell Telephone Laboratories, Incorporated Doped liquid crystal display device
JPS5188485A (ja) * 1975-02-03 1976-08-03 Ekishohyojisochi
US4062798A (en) * 1975-09-19 1977-12-13 Hoffmann-La Roche Inc. Phenylpyrimidine derivatives
DE2548360C2 (de) * 1975-10-29 1983-12-08 Merck Patent Gmbh, 6100 Darmstadt Flüssigkristalline Materialien mit verminderter Viskosität
US4003844A (en) * 1975-11-17 1977-01-18 Rca Corporation Liquid crystal devices
DE2557267A1 (de) * 1975-12-19 1977-06-30 Bbc Brown Boveri & Cie Fluessigkristallsubstanz

Also Published As

Publication number Publication date
GB1579041A (en) 1980-11-12
DK81377A (da) 1977-08-27
US4180475A (en) 1979-12-25
JPS52103387A (en) 1977-08-30
NL7701750A (nl) 1977-08-30
DE2708276A1 (de) 1977-09-01
SE7702138L (sv) 1977-08-27
FR2353626A1 (fr) 1977-12-30

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