Patents for C09K 19 - Liquid crystal materials (21,026)
03/1991
03/06/1991EP0415220A2 Chiral doping agents for liquid crystals
03/06/1991EP0415090A1 Fluorine-substituted compound containing ether bond and intermediate thereof
03/06/1991EP0261160B1 Alicyclic compounds
03/05/1991US4997942 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same
03/05/1991US4997591 Chiral smetic liquid crystals and glassy materials containing the same for displaying and storing information
03/05/1991US4997264 Ferroelectric liquid crystal devices having a high surface tilt
02/1991
02/28/1991DE4026223A1 Novel 5-oxy-2-phenyl-pyridine(s) - useful as component in ferroelectric liq. crystal media to give favourable viscosity, high spontaneous polarisation etc.
02/28/1991DE4026200A1 Fluessigkristallines medium Fluessigkristallines medium
02/28/1991DE3928267A1 5-oxy-2-phenylpyrimidine und fluessigkristallines medium 5-oxy-2-phenylpyrimidines and fluessigkristallines medium
02/28/1991DE3927497A1 Novel phenyl-cyclohexane(s) - useful in liq. crystal mixts., e.g. for nematic media or super-twist displays
02/27/1991EP0414230A2 Liquid crystal composition and liquid crystal device containing the same
02/27/1991EP0414048A2 Matrix-liquid crystal display
02/27/1991EP0413989A2 Liquid crystal compounds
02/27/1991EP0413973A1 Liquid crystalline polyesteretherimides and intermediates therefor
02/27/1991EP0413785A1 Liquid crystalline media containing fluorinated oligophenyls.
02/27/1991EP0302875B1 Optically active naphthalene compounds and liquid crystal compositions containing them
02/26/1991US4996330 Chiral substituted tartarimides
02/26/1991US4995705 Device, method and apparatus for optical modulation using ferroelectric polymer liquid crystals
02/21/1991WO1991002043A1 Fluoro-chloro-benzene derivatives
02/21/1991DE4025550A1 Phenylcyclohexane und fluessigkristallines medium Phenylcyclohexanes and fluessigkristallines medium
02/21/1991DE4025418A1 Di:phenyl and phenyl-cyclohexyl alkyl ester - in liq. crystalline medium for electro-optical display esp. LCD
02/20/1991EP0413585A1 Carboxylate compounds, liquid crystal compositions containing said compounds and liquid crystal element
02/20/1991EP0413375A1 Thermotropic polyesters
02/19/1991US4994204 Light modulating materials comprising a liquid crystal phase dispersed in a birefringent polymeric phase
02/19/1991CA2022880A1 Carboxylate compounds, liquid crystal compositions containing said compounds and liquid crystal element
02/14/1991DE4025370A1 2,5-Di:substd. 1,3-dioxan or pyrimidine derivs. - useful as components of liq. crystal media for electro-optical displays
02/13/1991EP0412485A2 Polymeric liquid-crystal composition and polymeric liquid-crystal device
02/13/1991EP0412409A2 Liquid crystal mixtures, especially ferroelectric liquid crystal mixtures and their use in electrooptic devices
02/12/1991US4992203 Non-linear optics
02/12/1991US4992201 Nematic curvilinearly aligned phase; emulsification of liquid crystals in suspension of latex
02/12/1991CA1280110C LIQUID CRYSTALLINE FERROELECTRIC DERIVATIVES OF BRANCHED ACYCLIC .alpha.-CHLOROCARBOXYLIC ACIDS
02/07/1991WO1991001511A1 Reverse mode microdroplet liquid crystal light shutter displays
02/06/1991EP0411610A2 Ferroelectric liquid crystal composition and light switching device using said composition
02/06/1991EP0411511A2 Supertwisted nematic liquid crystal display device
02/06/1991EP0411122A1 Ferroelectric liquid crystal composition
01/1991
01/30/1991EP0410756A1 Cyclohexenylethane compounds
01/30/1991EP0410469A2 Cyano-substituted compound containing ether bond
01/30/1991EP0410447A2 Liquid crystalline compounds, liquid crystal compositions containing the same and use thereof
01/30/1991EP0410233A2 (4-Arylbutyl) cyclohexane derivatives
01/30/1991EP0410222A2 Aromatic polyester and a process for producing the same
01/30/1991EP0410205A2 Anisotropic liquid crystal polymeric films
01/30/1991EP0410142A2 Optically active liquid crystal compounds
01/30/1991EP0088126B1 Encapsulated liquid crystal and method
01/29/1991US4988821 Thermotropic liquid crystal compound
01/29/1991US4988792 Thermotropic liquid crystals, tensile strength, fibers, impact strength
01/29/1991US4988776 Polymer composition on the basis of polymer and a polyester amide
01/29/1991US4988460 Hydrogen bonded addition polymers, polycarbonates, polyesters, or polyamides, aromatic ester derivatives as liquid crystals
01/29/1991US4988459 Electrooptic switches or display
01/29/1991US4988458 Liquid crystal phase containing admixtures which effect temperature compensation
01/24/1991WO1991000898A1 Super-twist liquid crystal display
01/24/1991WO1991000897A1 Chiral or achiral ring compounds
01/24/1991WO1990013282A3 Decorative composition
01/24/1991DE4006743A1 Chirale oder achirale ringverbindungen Chiral or achiral ring compounds
01/24/1991DE3923750A1 Nematic liq. crystalline medium with positive dielectric anisotropy - contg. achiral cpds. and chiral dopant giving very wide thickness pitch window
01/24/1991DE3923064A1 Supertwist-fluessigkristallanzeige Super-Twist fluessigkristallanzeige
01/23/1991EP0409634A2 Liquid crystal compounds and optically active compounds
01/23/1991EP0409442A2 Encapsulated liquid crystal apparatus having low off-axis haze and operable by a sine-wave power source
01/23/1991EP0409234A2 Alpha-hydroxyketone derivatives, liquid crystal compositions containing said derivatives, and liquid crystal devices using said compositions
01/23/1991EP0409070A2 Mesogenic cyanite functional maleimides and thermosets thereof
01/23/1991EP0409069A2 Mesogenic polycyanates and thermosets thereof
01/23/1991EP0409066A2 Optically active compound for liquid crystal and its use
01/23/1991EP0408995A2 Liquid crystal medium with limited temperature-dependence of the d/p coefficient
01/22/1991US4986931 Cyclohexane derivatives
01/18/1991CA2021289A1 Mesogenic cyanate functional maleimides and thermosets thereof
01/18/1991CA2021280A1 Mesogenic polycyanates and thermosets thereof
01/17/1991DE3922416A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922308A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922307A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/16/1991EP0407944A2 Color image forming method providing balanced color tone
01/16/1991EP0407830A2 Polarizer
01/16/1991EP0407822A2 Polymer liquid crystal device
01/16/1991EP0407569A1 Diphenylethanes
01/16/1991EP0407438A1 Laterally fluorinated 4-cyanophenyl and 4'-cyanobiphenyl benzoates.
01/15/1991US4985583 Liquid Crystals
01/15/1991US4985533 Termotropic liquid-crystalline aromatic polyester from hydroquinone/substituted hydroquinone mixture
01/15/1991US4985172 Chiral aryloxypropionates, and the use thereof as dopes in liquid-crystal phases
01/15/1991US4985171 Anthraquinone type compound and liquid crystal composition containing such compound
01/15/1991CA1279147C Optically anisotropic melt forming aromatic copolyesters based on t-butylhydroquinone
01/10/1991DE3920509A1 New partly liq. crystalline silylated benzoic acid cpds.
01/09/1991EP0406979A1 Polymer composition based on a liquid crystalline polymer and a polyamide
01/09/1991EP0406812A2 Process for the preparation of NiNi-dialkyl-1,8-naphthalene diamine
01/09/1991EP0406705A2 Liquid crystal apparatus and chiral smectic liquid crystal composition for use therein
01/09/1991EP0406468A1 Nematic-liquid-crystal composition for active matrix application
01/08/1991US4983713 Polyester resin exhibiting optical anisotropy in molten state containing minor amounts of 6-oxy-2-naphthoyl units
01/08/1991US4983479 Method of manufacturing a laminated element and the element thus obtained
01/08/1991US4983318 Applying a pulsating electric field
01/03/1991DE3920571A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/02/1991EP0405983A2 Optically active substance and liquid crystal composition
01/02/1991EP0405868A2 Liquid crystal composition
01/02/1991EP0405713A1 Polymerization of liquid crystalline monomers
01/02/1991EP0405516A2 Ferroelectric, pyramidal liquid crystals
01/02/1991EP0405346A2 Bistable ferroelectric liquid cristal display
01/02/1991EP0405326A2 Silylated benzoic acid derivatives
01/01/1991US4981967 Pyrimidine compounds and their use as liquid crystals
01/01/1991US4981607 Liquid-crystalline organopolysiloxanes and methods for their preparation
12/1990
12/29/1990CA2020115A1 Ferroelectric, pyramidal liquid crystals
12/27/1990WO1990016007A1 Liquid-crystal switching and display element
12/27/1990WO1990015854A1 Electro-optical liquid crystal system
12/27/1990WO1990013611A3 Optically active compounds and liquid crystal phase
12/27/1990EP0404639A2 Cholesteric liquid composition and color-forming liquid crystal composite products