Patents for C09K 19 - Liquid crystal materials (21,026)
05/1990
05/16/1990CN1042173A Supertwist liquid crystal display device
05/16/1990CN1042164A Optically active nonlinear polymers and thereof
05/15/1990US4925708 Process for producing liquid crystal devices
05/15/1990US4925592 Ether substituted phenyl benzoates; ferrodielectric display elements
05/15/1990US4925591 Mesomorphic compound having β-hydroxycarboxyl group as chiral source and liquid crystal composition
05/15/1990US4925590 Derivatives of 4-cyano-2,3-difluorophenol
05/15/1990US4925589 Addition acrylic type polymer
05/15/1990US4925278 Electrooptics
05/10/1990DE3837936A1 Laterally substituted, mesogenic side-chain polymers
05/10/1990DE3837663A1 Urethane derivatives
05/09/1990EP0366985A1 Super twist liquid crystal display
05/08/1990US4923955 Thermotropic liquid-crystalline aromatic polyesters of substituted 4,4'-dihydroxy-diphenylene
05/08/1990US4923633 Liquid crystal compounds containing two or more chiral centers
05/08/1990US4923632 Liquid crystal composition for twist nematic mode
05/08/1990CA1268893A1 Wholly aromatic liquid-crystalline polycondensates and the preparation thereof
05/03/1990WO1990004805A1 Variable density light control apparatus and method
05/03/1990WO1990004623A1 Matrix liquid crystal display
05/03/1990WO1990004622A1 Supertwist liquid crystal display
05/02/1990EP0366392A2 Polyester resin exhibiting optical anisotropy in molten state and resin composition
05/02/1990EP0366391A2 Polyester resin exhibiting optical anisotropy in molten state and resin composition
05/02/1990EP0365962A1 Matrix-type liquid-crystal display
05/02/1990EP0365820A1 Utilization of optically active ester of oxygen containing heterocyclic carboxylic acids as doping agents in liquid crystalline mixtures, and those mixtures containing them
05/02/1990EP0365641A1 Pyridine derivatives
05/02/1990EP0267276B1 Smectic liquid crystal phases containing bicyclooctane esters
05/02/1990CN1041776A Mesogens and polymers with mesogens
05/02/1990CN1041773A Water dispersible polymers for coatings
05/01/1990US4921632 Liquid crystal compounds and compositions
05/01/1990CA1268591A1 Liquid-crystalline carbamyl-containing polycondensates and the preparation thereof
05/01/1990CA1268590A1 Wholly aromatic mesomorphic polyesters and the preparation thereof
05/01/1990CA1268589A1 Wholly aromatic polyesters and preparation thereof
05/01/1990CA1268588A1 Wholly aromatic mesomorphic polyester imides, the preparation and use thereof
05/01/1990CA1268587A1 Wholly aromatic mesomorphic polyester amide imides and the preparation thereof
05/01/1990CA1268584A1 Wholly aromatic mesomorphic polyester amides and preparation thereof
04/1990
04/26/1990DE3923044A1 Matrix LCD contg. specified nematic liq. crystal mixt. - with positive dielectric anisotropy and high specific resistance
04/25/1990EP0365255A2 Ferroelectric liquid crystal composition and liquid crystal display device
04/25/1990EP0365101A1 Liquid-crystalline polymer composition
04/25/1990EP0364923A2 Mesomorphic compound, liquid crystal composition containing same and liquid crystal device using same
04/25/1990EP0364588A1 Liquid crystal composition
04/25/1990EP0364548A1 Octafluorobiphenyls.
04/25/1990EP0364538A1 Difluorobenzol derivatives.
04/25/1990EP0364534A1 Liquid crystal mixtures with low refractive index
04/25/1990EP0364520A1 Mechanical structural member
04/25/1990EP0227717B1 Nitrogen-containing heterocyclic esters
04/24/1990US4920191 Liquid crystalline polyester siloxanes
04/24/1990CA2000460A1 Polyester resin exhibiting optical anisotropy in molten states and resin composition
04/24/1990CA2000451A1 Polyester resin exhibiting optical anisotropy in molten states and resin composition
04/24/1990CA1268292A1 Wholly aromatic mesomorphic polyether ester imides and the preparation thereof
04/24/1990CA1268291A1 Wholly aromatic mesomorphic polyester amide imides and the preparation thereof
04/24/1990CA1268289A1 Wholly aromatic polyester carbamides and the preparation thereof
04/24/1990CA1268032A1 Light modulating material comprising a liquid crystal dispersion in a plastic matrix
04/20/1990CA2000926A1 Supertwist liquid crystal display
04/19/1990DE3834926A1 Optically active thiadiazole derivatives
04/19/1990CA2000939A1 Variable density light control apparatus and method
04/18/1990EP0364185A2 Conducting liquid crystals
04/18/1990EP0191860B1 Liquid crystal compound
04/17/1990US4918217 Memory device, opto-electronic display or non-linear optical device
04/17/1990US4918213 Having a trifluoromethyl group attached to asymmetric carbon atom; stable; optical devices
04/17/1990US4917821 Optically active mesomorphic compound and liquid crystal composition containing same
04/17/1990US4917819 Good stability, low viscosity, large dielectric ansiotropy
04/17/1990US4917818 Nematic liquid crystal composition
04/17/1990US4917817 Optical active compound, process for producing same and liquid crystal composition containing same
04/17/1990US4917473 Method of manufacturing liquid crystal devices
04/17/1990CA1267779A1 Poly(aryl ether) liquid crystalline polyester block copolymers
04/11/1990EP0363237A2 Polymers and materials containing same having non-linear optical properties, process for their preparation and optoelectrical materials and devices containing same
04/11/1990EP0362714A2 Liquid-crystalline compounds and liquid-crystalline polymers
04/11/1990EP0362318A1 2,3-difluorobiphenyls.
04/11/1990EP0362317A1 Smectic liquid crystal medium
04/10/1990US4916074 Process for producing optically active compounds
04/10/1990US4915868 Optically active esters of 1-acylproline as dopes in liquid-crystal mixtures, and novel optically active esters of 1-acylproline
04/10/1990US4915867 Compound hydrogen bonded to non-liquid crystalline polymer
04/10/1990US4915491 Side chain liquid crystalline acrylic copolymers exhibiting nonlinear optical response
04/10/1990US4915480 Liquid crystalline compounds and mixtures
04/05/1990WO1990003415A1 Water dispersible polymers for coatings
04/05/1990WO1990003360A1 Mesogens and polymers with misogens
04/05/1990DE3909802A1 Difluormethylverbindungen Difluormethylverbindungen
04/04/1990EP0361853A2 Mesogens and polymers with mesogens
04/04/1990EP0361852A2 Water dispersible polymers for coatings
04/04/1990EP0361843A2 Chiral smectic C liquid crystalline polyester
04/04/1990EP0361532A2 Ethane derivatives
04/04/1990EP0361272A1 Optically active esters of 5-ethyl and 5-vinyl 1,3-dioxolane-carboxylic acid, their use as dopants in liquid-crystal mixtures, and liquid-crystal mixtures containing these esters
04/04/1990EP0361255A1 Liquid-crystal mixtures containing azulene square acid dye
04/04/1990EP0361157A1 Phenyl pyridines
04/04/1990EP0360851A1 Supertwist liquid crystal display
04/04/1990EP0259346B1 R-1-cyan-1-r2 -cis-4-r1 -cyclohexane compounds
04/04/1990EP0215800B1 Pyrimidines
04/03/1990US4914224 High-speed response, wide temperature range, chiral smectic phases
04/03/1990US4913839 Usable at room temperature; fast response speed; displaying motion pictures; suitable for large or curved screens
04/03/1990US4913838 Liquid crystal compound with a 4-(optically active alkyl)-3-cyanophenyl group
04/03/1990US4913837 Liquid crystals
04/03/1990US4913836 Side chain liquid crystalline polymers exhibiting nonlinear optical response
04/03/1990US4913532 Mixture
04/03/1990US4913530 Liquid crystal display
03/1990
03/29/1990DE3831336A1 Tolans
03/29/1990DE3825424A1 Fluorierte alkoxyverbindungen Fluorinated alkoxy
03/28/1990EP0360683A1 Liquid crystals with a chiral structure derived from dehydroxy-4,4' bisphenol
03/28/1990EP0360622A2 Novel optically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elements
03/28/1990EP0360521A2 Achiral fluorine-containing liquid crystals
03/28/1990EP0360457A2 A liquid crystal information storage device
03/28/1990EP0360080A1 An alkenyl ether compound and a composition containing the same
03/28/1990EP0360043A1 p-Terphenyl derivatives and liquid crystalline compositions