Patents for C09K 19 - Liquid crystal materials (21,026)
05/1994
05/11/1994WO1994010260A1 Multistable chiral nematic displays
05/11/1994WO1994010153A1 Method of preparing hydroxy-substituted aromatic hetero-compounds
05/11/1994WO1994010152A1 Bifunctional intermediates for use in the manufacture of liquid crystals
05/11/1994WO1994010116A1 Acetylene derivative, process for producing the same, liquid crystal composition containing the same as active ingredient, and liquid crystal element made therefrom
05/11/1994WO1994010105A1 Method of crosslinking aromatic boron acids with aromatic halogen compounds or perfluoroalkyl sulphonates
05/11/1994EP0595850A1 Polymer alloy made of polyetherimides and liquid-crystalline copolyesters
05/11/1994DE4237661A1 Elektrostatische Toner, enthaltend amphiphile Flüssigkristalle An electrostatic toner containing amphiphilic liquid crystals
05/10/1994US5311343 Liquid crystal device with at least two liquid crystal compounds, one having and one not having a chiral smectic phase
05/10/1994US5310859 Liquid crystalline polyesters and methods for their production
05/10/1994US5310837 Liquid crystalline colorant polymer
05/10/1994US5310503 Stilbene compound, intermediate for producing the stilbene compound, method of producing the stilbene compound, and liquid crystal composition containing the stilbene compound
05/10/1994US5310502 High tilt angle FLC mixture for TIR switching devices
05/10/1994US5310501 Anisotropic compounds having Nematic phase and liquid crystal mixtures
05/10/1994US5310500 Fluorinated naphthalenecarboxylic acid ester derivatives; electrooptics
05/10/1994US5310499 Short response times
05/05/1994DE4237163A1 New 2-pyrimidine-carboxylate ester cpds. used in liquid crystal medium - for LCD and dielectric of electro-optical display, which are stable and have low viscosity and high dielectric anisotropy
05/05/1994DE4236935A1 Anisotropic porous network with accurately controlled pore size - contg. acryloyl:oxy-benzoyloxy-phenyl acrylate and liquid crystalline cpds., useful in liquid chromatography and membrane prodn.
05/04/1994EP0595144A1 Cyclohexyl alkenoates as components of liquid crystalline mixtures
05/04/1994EP0594861A1 Optically active tetrahydropyran derivative, and liquid crystal composition and liquid crystal element both containing the same
05/04/1994EP0594728A1 Optical devices, their production and use
05/04/1994EP0395666B1 Laterally cyano- and fluoro-substituted terphenyls
05/04/1994EP0215800B2 Pyrimidines
05/04/1994EP0174982B1 Encapsulated liquid crystal material, apparatus and method
05/03/1994US5309265 Short pitch LC layer with a temperature independent λ0 and containing a nematic LC doped with plural chiral additives having the same twist sense
05/03/1994US5308543 Nematic liquid-crystal composition for active matrix application
05/03/1994US5308542 4,4'-disubstituted 2',3-difluorobisphenyls and a liquid-crystalline medium
05/03/1994US5308541 Halogenated benzene derivatives, and a liquid-crystalline medium
05/03/1994US5308540 Reacting an optically active glycidyl ether with a malonate in the presence of a base in an organic solvent to produce a compound having an optically active lactone ring
05/03/1994US5308539 Ferroelectric liquid crystal composition and liquid crystal device using the same
05/03/1994US5308538 Mixture of pyrimidine compound and nitrile compound, rapid switching times
05/03/1994US5308537 Unsaturated liquid crystal compounds containing trifluoromethyl groups
05/03/1994US5308536 Optically active 4-mercaptocinnamic acid derivatives, preparation method thereof and use thereof
05/03/1994CA1329252C Light modulation element
04/1994
04/28/1994WO1994009194A1 Liquid crystal copolymer containing alkoxy-substituted para-phenylene terephthalate groups
04/28/1994WO1994009086A1 Liquid crystalline organosiloxanes containing doristerol
04/28/1994WO1994009085A1 Thio-ester compounds and mixtures and devices containing such compounds
04/28/1994WO1994009011A1 Siloxane derivatives containing quaternary ammonium groups, process for their production and their use
04/28/1994DE4236106A1 New liq. crystalline aza-aromatic cpds. - esp. useful in ferroelectric mixts. for electro-optical switches, display elements etc.
04/28/1994DE4236104A1 Bifunktionelle Vorprodukte zur Herstellung von Flüssigkristallen Bifunctional precursors for the preparation of liquid crystals
04/28/1994DE4236103A1 Verfahren zur Kreuzkupplung von aromatischen Boronsäuren mit aromatischen Halogenverbindungen oder Perfluoralkylsulfonaten Process for the cross-coupling of aromatic boronic acids with aromatic halogen compounds or perfluoroalkyl sulfonates
04/28/1994DE4236102A1 Verfahren zur Herstellung von Hydroxyheteroaromaten A process for preparing Hydroxyheteroaromaten
04/28/1994DE4235975A1 New methylene-spiro=alkane cpds. and use in liquid crystal media - for electro-optical displays, esp. active matrix or supertwist displays, with low viscosity and moderate positive dielectric anisotropy
04/28/1994DE4235974A1 New methylene-cyclobutane-benzene cpds. and use in liquid crystal media - esp. for electro-optical display, giving relatively low viscosity and favourable optical and dielectric anisotropy and specific resistance
04/27/1994EP0593997A1 Fluor substituted phenyl-cyclohexyl acetylenes and liquid crystals mixtures containing them
04/27/1994EP0593592A1 Thermotropic liquid crystal segmented block copolymer
04/26/1994US5307187 Liquid crystal element with higher resistivity in the encapsulation medium than in the liquid crystal
04/21/1994DE4234845A1 Flüssigkristalline doristerolhaltige Organosiloxane Liquid crystalline doristerolhaltige Organosiloxanes
04/21/1994DE4234627A1 New 3-fluorophenyl-piperidine and -piperazine and precursor cpds. - used in liq. crystal medium, esp. for electro-optical display
04/20/1994EP0592669A1 Optically active trifluorolactic acid derivative and liquid crystal composition
04/20/1994EP0592635A1 Tn cell with improved grey-shade representation
04/20/1994CN1085591A Liquid-crystal composition and liquid-crystal-displaying element using same
04/20/1994CN1024300C Color liquid crystal display
04/19/1994US5305131 Liquid crystal composition having an improved temperature dependence of response speed, liquid crystal device and display apparatus
04/19/1994US5305127 Ferroelectric liquid crystal device with an AC electric field producing a helical structure and/or color control
04/19/1994US5305126 Polymer-dispersed liquid crystal material with in-situ polymerized liquid crystal polymer grains dispersed in a layer of liquid crystal material sealed between substrates and field electrodes
04/19/1994US5304667 Cyclosiloxanes containing mesogenic side groups
04/19/1994US5304334 Method of preparing a multiphase composition
04/19/1994US5304323 Liquid crystal devices and process for producing the same
04/14/1994WO1994008268A1 Liquid crystalline material
04/14/1994DE4234089A1 Pyridine derivs. - are useful for liq. crystal displays and have low viscosity and high dielectric anisotropy
04/13/1994EP0592269A1 Antiferroelectric liquid crystal compound and liquid crystal composition containing the same
04/13/1994EP0592092A1 Ferroelectric liquid crystal composition
04/13/1994EP0591768A1 New sunfactants, process for their preparation, formulations thereof and their application
04/13/1994EP0591508A1 Electrooptical liquid crystal system
04/13/1994EP0424461B1 Novel ferroelectric liquid-crystal polymers, process for producing said polymers and their use in electro-optical components
04/12/1994US5303073 Dispersion-type liquid crystal display element with oriented dichroic dye in the support media
04/12/1994US5302317 Halobenzene liquid crystals
04/12/1994CA2026702C Ultrathin membrane of polymethacrylate or polycrotonate and device provided with ultrathin membrane
04/06/1994EP0590984A1 A polymer dispersed liquid crystal complex film, a liquid crystal display device, and a method for producing the same
04/06/1994EP0590376A1 Polymeric composite material
04/06/1994EP0441933B1 Difluorobenzonitriles and liquid-crystal medium
04/05/1994US5301049 Liquid crystal device with at least two liquid crystal compounds, one having one not having a cholesteric phase
04/05/1994US5301045 Helical liquid crystalline element which produces linear polarized light
04/05/1994US5300254 Improved multiplexing capacity
04/05/1994CA1328330C Photocrosslinkable liquid crystalline polymers
04/04/1994CA2107527A1 Surfactants, process for their preparation, compositions containing them, and their use
03/1994
03/31/1994WO1994006885A1 Dioxane derivatives
03/31/1994DE4331675A1 Bistable ferroelectric liq. crystalline medium used in electro=optical display component
03/30/1994EP0589331A1 Acetylene derivatives and liquid crystalline mixtures containing them
03/30/1994EP0429558B1 Diphenylylethanes and liquid crystalline phase
03/29/1994US5298590 Liquid crystal alignment treating agent
03/29/1994US5298575 Nitro group terminated mesogenic epoxy resin adducts
03/29/1994US5298188 Fluorinated liquid crystals
03/26/1994CA2105817A1 Cosmetic composition
03/24/1994DE4230288A1 Chiral valerolactone derivs. - useful as dopants for liq. crystal media, to give high spontaneous polarisation with compensated pitch
03/23/1994EP0588291A1 2-Fluorobenzonitrile derivative
03/22/1994US5296616 Optically active fluorine-containing compound
03/22/1994US5296570 Curable mixtures of mesogenic epoxy resins and mesogenic polyamines and cured compositions
03/17/1994WO1994006050A1 Directly formed polymer dispersed liquid crystal light shutter displays
03/17/1994WO1994005613A1 Difluoride derivative and liquid crystal composition containing the same
03/16/1994EP0587280A1 Antiferroelectric liquid crystal composite material, process for preparing the same, and liquid crystal element using the same
03/16/1994EP0587052A1 Ferroelectric liquid crystal composition
03/16/1994EP0586373A1 Methods of fabricating dual anode, flat panel electrophoretic displays.
03/15/1994US5295009 Polarizer device
03/15/1994US5294367 Ferroelectric liquid crystal composition and light switching element comprising the same
03/15/1994US5294366 Trifluoroalkyl esters of an alkoxynaphthylenecarbonyl oxyphenylenecarbonyloxybenzoic acid
03/09/1994EP0586263A1 A liquid crystal compound
03/09/1994EP0586014A1 Optical modulation device
03/09/1994CN1083497A Thermotropic liquid crystal polymer toughening epoxy resin and its preparation method
03/08/1994US5292831 Mesogenic epoxy compounds