Patents for C09K 19 - Liquid crystal materials (21,026)
07/1982
07/28/1982EP0056519A2 Short length ester liquid crystal mixtures
07/28/1982EP0056501A2 Liquid crystal mixture
07/28/1982EP0056492A1 Dyes for liquid crystal mixtures
07/27/1982US4341653 Liquid-crystalline 4-alkylcyclohexyl esters
07/27/1982US4341652 Ester compounds, liquid crystal composition including same and method of production
07/21/1982EP0056113A1 Cyclohexylcarbonitrile derivatives, dielectrics and electro-optic display device containing them
07/20/1982US4340624 Electrochromic display device
07/20/1982US4340498 Crystalline admixture
07/14/1982EP0055989A2 Liquid crystal with an incorporated pleochroic anthraquinone dyestuff, and process for the preparation of the dyestuff
07/14/1982EP0055842A2 Mixtures of dyestuffs and liquid-crystal materials containing these mixtures
07/14/1982EP0055838A2 Liquid cristalline material containing disazodyes
07/08/1982WO1982002209A1 Liquid crystal compositions with novel tris-azo dichroic dyes
07/06/1982US4337999 Fluorescent liquid crystal display compositions and devices
06/1982
06/30/1982EP0054837A1 Liquid crystal compositions with tris-azo dichroic dyes
06/24/1982WO1982002054A1 Novel yellow azo dyes and dichroic liquid crystal compositions made therefrom
06/23/1982EP0054217A1 Anthraquinone dyes, process for their preparation, their use, as well as liquid-crystal material containing anthraquinone dyes
06/15/1982US4335012 5-Substituted-2-(4-cyanophenyl)-1,3-dioxanes
06/15/1982US4335011 Cyclohexyl-dioxane liquid crystalline compounds
06/08/1982US4333709 Mixture of disc-like liquid crystals, electro-optical device using such a mixture and process for orienting the molecules of the mixture
06/01/1982US4332759 Process for extruding liquid crystal polymer
05/1982
05/25/1982US4331552 Liquid crystalline, partially hydrogenated oligo-1,4-phenylenes and dielectrics and electro-optical display elements containing them
05/19/1982EP0051768A1 Liquid crystal indicator device
05/19/1982EP0051738A1 Cyclohexyl-biphenyl derivatives that contain fluor, dielectrics containing them and electro-optical indicating element
05/18/1982US4330426 Cyclohexylbiphenyls, their preparation and use in dielectrics and electrooptical display elements
05/04/1982US4328116 Liquid crystal compositions for multiplexed displays
04/1982
04/28/1982EP0050426A1 Liquid crystal display device
04/21/1982EP0050023A1 Liquid crystal devices
04/20/1982US4325830 Three ring dioxane liquid crystalline compounds
04/15/1982WO1982001191A1 Composition for liquid crystal color display
04/13/1982US4324455 Liquid crystal composition
04/07/1982EP0049036A1 Organic compositions suitable for guest-host liquid crystal device
04/07/1982EP0049035A1 Organic compositions suitable for a guest-host liquid crystal device
04/07/1982EP0048887A1 Liquid crystal composition containing a pleochroic anthraquinone dye
04/07/1982EP0048886A1 Liquid-crystal composition containing a pleochroic anthraquinone dye, and process for the production of such a dye
04/06/1982US4323504 Cyclohexyl cyclohexyl dioxane liquid crystalline compounds and admixture containing same
04/06/1982US4323473 Cyclohexyl cyclohexyl dioxane liquid crystalline compounds and admixture containing same
04/06/1982US4323472 Liquid crystal admixture
04/06/1982US4323471 Liquid crystal composition
03/1982
03/31/1982EP0048583A1 Liquid crystal compositions containing pleochroic anthraquinone dyes, liquid crystal devices containing the compositions, and the dyes
03/30/1982US4322354 5-Substituted-2-(4-cyanophenyl)-1,3,-dioxanes
03/24/1982EP0047817A2 Hydrogenated naphthalines, their preparation and application, and mixtures containing such naphthalines
03/23/1982CA1120491A1 Liquid crystalline materials
03/23/1982CA1120490A1 Liquid crystal materials
03/23/1982CA1120478A1 Cyclohexyl pyrimidines
03/17/1982EP0047453A1 4'-(Beta-alkyloxyethoxy)-4-cyanobiphenyl
03/10/1982EP0047198A2 Display method using a thermo-optical effect with memory in a film of disc-like liquid crystals, and disc-like liquid crystals showing such an effect
03/10/1982EP0047027A1 Liquid crystals mixture
03/04/1982WO1982000654A1 New derivatives of phenic acid,method of obtaining them,liquid crystal material with negative dielectric anisotropy,method of obtaining that liquid crystal material,liquid crystal material with low-frequency inversion of sign of dielectric anisotropy and method of obtaining that liquid crystal material
02/1982
02/18/1982WO1982000472A1 Derivatives of 2,2-azoimidazole,method for the preparation thereof,liquid crystal material and electro-optical device
02/16/1982US4316041 Liquid crystal silanes
02/10/1982EP0045575A1 Process for extruding liquid crystal polymer
02/03/1982EP0044893A1 Anthraquinone compounds and process for their preparation
02/02/1982US4313878 4-Substituted phenyl 4'-(5-n-alkyl-1,3-dioxan-2-yl)benzoates
01/1982
01/27/1982EP0044759A1 Smectic type A liquid crystal with positive dielectric anisotropy
01/27/1982EP0044666A2 Helichromic compounds and displays
01/27/1982EP0044646A1 4-(Trans-4'-alkylcyclohexyl)benzoic acid 4"'-cyano-4"-biphenylyl esters and liquid crystal compositions containing them
01/26/1982US4312773 Liquid crystal compositions
01/26/1982CA1116841A1 Liquid-crystalline polymer phase having a cholesteric structure, processes for its preparation and its use
01/20/1982EP0043904A2 Mixtures containing a dyestuff, dyestuffs and their use in liquid crystal mixtures
01/19/1982US4311843 Di-n-alkyl dicarboxypyrazinedicarboxylates and ferrous complexes
01/19/1982US4311610 Liquid crystalline 5-alkyl-2 (4-acyloxy-phenyl)-pyrimidine
01/13/1982EP0043603A1 Guest-host liquid crystal display device
01/05/1982US4309539 Electrooptics
01/05/1982US4309304 Liquid crystal compositions for multiplexed displays
01/05/1982US4309183 Liquid crystal phase of an azo reactive dyestuff and its use for dyeing and printing natural and synthetic substrates
01/05/1982US4309182 Cotton, wool, regenerated cellulose, paper, leather
12/1981
12/30/1981EP0042535A1 Mixtures of dyes, process for their manufacture and for dyeing hydrophobic fibres
12/29/1981US4308164 Novel yellow azo dyes and dichroic liquid crystal composition made therewith
12/29/1981US4308163 Novel yellow azo dyes and dichroic liquid crystal composition made therewith
12/29/1981US4308162 Novel yellow azo dyes and dichroic liquid crystal compositions made therewith
12/29/1981US4308161 Novel yellow azo dyes and dichroic liquid crystal compositions made therewith
12/08/1981US4304683 Composition for liquid crystal color display element
11/1981
11/24/1981US4302352 Fluorophenylcyclohexanes, the preparation thereof and their use as components of liquid crystal dielectrics
11/17/1981US4301023 Cholesteric compositions
11/10/1981US4299720 Liquid crystal mixture
11/03/1981US4298528 Cyclohexyl-dioxane liquid crystalline compounds
10/1981
10/28/1981EP0038460A1 Liquid crystal materials comprising anthraquinone dyes
10/27/1981US4297515 Polarity; dissolving dopes or dichroitic dyes
10/27/1981US4296631 And method of modifying the hysteretic behavior
10/21/1981EP0037902A1 Liquid crystal display element
10/06/1981US4293698 4-/p-alkylbenzoyloxy/pyridine oxide
10/06/1981US4293435 Liquid-crystalline polymer phase having a cholesteric structure, processes for its preparation and its use
10/06/1981US4293434 Containing dyes and an aromatic ester compound having a cyclohexane ring
10/06/1981US4293193 Amine-substituted liquid crystal compositions
10/06/1981CA1110352A1 Azine liquid crystal compounds for use in light- control devices
10/06/1981CA1110052A1 Composition for liquid crystal thermometry
09/1981
09/30/1981EP0036678A1 Liquid crystal display device
09/29/1981US4291948 Liquid crystal display incorporating positive and negative smectic material
09/22/1981US4290905 Ester compound
09/15/1981CA1108838A1 Method of pulverizing cholesteric type liquid crystals
09/09/1981EP0035155A1 Trans-4"-alkylcyclohexyl esters of 4'-(2-methylbutyl)-4-biphenylcarboxylic acid and liquid crystal compositions containing same
09/08/1981US4288147 Liquid crystal and dichroic dye; improved contrast
09/02/1981EP0034832A1 Liquid crystal with an incorporated pleochroic anthraquinone dyestuff and its use
09/01/1981US4287085 (2'-Cyano-4'-alkylphenyl)-3-cyano-4-alkoxybenzoates and liquid crystal composition including same
08/1981
08/26/1981EP0034350A1 Ester derivatives of 4-fluorophenol and liquid crystal compositions containing same
08/26/1981EP0034326A1 Chiral polysiloxanes, process for their preparation and their use
08/26/1981EP0034298A2 Thermometric compositions for measuring and indicating low temperatures and related thermometric devices
08/25/1981US4285829 Liquid-crystalline dielectric
08/19/1981EP0033947A2 Liquid crystal display element
08/12/1981EP0033334A1 Display device with dynamic internal polarizer