Patents for C09K 19 - Liquid crystal materials (21,026)
01/1985
01/29/1985US4496221 Liquid crystal compositions with pleochroic anthraquines dyes
01/23/1985EP0131837A1 Liquid crystalline compounds
01/22/1985US4495083 Pleochroic, anthraquinone dye
01/16/1985EP0131373A1 Liquid crystalline biphenyl derivatives and mixtures thereof
01/15/1985US4493785 Anthraquinone compounds
01/15/1985US4493532 Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition
01/15/1985CA1180889A1 Compositions containing liquid-crystalline phases
01/01/1985US4491532 Liquid-crystal mixture with a pleochroic anthraquinone dye, and method for producing such a dye
12/1984
12/27/1984EP0129177A2 Nematic benzonitriles
12/25/1984US4490305 Liquid-crystalline halogen compounds, process for their preparation, dielectrics containing these, and electro-optical display element
12/25/1984US4490278 Liquid crystal substituted trans-4-n-alkylcyclohexanes and subst.-3-subst.-benzoyloxy-[trans-4-n-alkylcyclohexane]s
12/25/1984US4490277 Mesomorphic material with low optical anisotropy and process for producing same
12/18/1984CA1179689A1 Liquid crystalline halogen compounds, process for their preparation, dielectrics containing these, and electro-optical display element
12/12/1984EP0127816A2 Trans-Decalincarbonitriles
12/11/1984US4487954 Liquid crystals
12/11/1984US4487735 Process for preparing film of poly{[benzo(1,2-d:4,5-d')bisthiazole-2,6-diyl]-1,4-phenylene}, its cis isomer or mixtures thereof
12/05/1984EP0126949A2 Fluorine-containing pyrimidine derivatives
12/05/1984EP0126883A1 Liquid crystalline cyclohexylbenzene derivatives, their preparation and the liquid crystal compositions containing them
12/04/1984US4486334 Crystallization in form of lamellas
12/04/1984US4486332 Electro-optics
12/04/1984US4486119 Mesophase dope containing cellulose derivative and inorganic acid
11/1984
11/28/1984EP0126601A1 Disubstituted ethanes and their use in liquid crystal materials
11/21/1984EP0125563A2 Bicyclohexyl ethanes
11/20/1984US4483595 Liquid crystal compositions
11/20/1984US4483594 Guest-host displays
11/20/1984US4483593 Guest-host type liquid crystal composition and liquid crystal display device
11/14/1984EP0125079A2 Process for extruding thermotropic liquid crystalline polymers
11/13/1984US4482473 Liquid crystal mixture
11/13/1984US4482472 Liquid crystal materials
11/13/1984US4482139 Transport and separating apparatus for folded printed matter
11/07/1984EP0123981A2 Liquid crystal cell
11/07/1984EP0123907A2 Fluoropyrimidine derivatives
11/06/1984US4481149 Fluorine-containing phenyl benzoate compounds, and their production and use
10/1984
10/30/1984USRE31715 Liquid crystal compounds
10/30/1984US4480117 Nematic liquid crystalline compounds
10/30/1984US4479885 Phthalonitrile derivatives and a liquid crystal composition containing the same
10/24/1984EP0122737A1 Enhanced scattering in voltage sensitive encapsulted liquid crystal
10/24/1984EP0122389A2 Liquid crystal components having an alkenyl chain
10/23/1984US4478741 4-Alkylcyclohexyl 4-alkanoyloxybenzoate and liquid crystal composition thereof
10/23/1984US4478740 Benzonitriles
10/23/1984US4478739 Dark colored composition based on liquid crystals
10/17/1984EP0121876A1 Preparation process of moulded products made of thermoplastic matter
10/16/1984US4477369 New high temperature liquid-crystalline substances consisting of 4 or 5 six-member-rings and liquid-crystalline compositions containing same
10/16/1984US4477368 Color display liquid crystal composition
10/16/1984CA1176175A1 Cholesteric compositions
10/10/1984EP0121415A2 Colored encapsulated liquid crystal apparatus using enhanced scattering, imbibition method, and scanned multicolor displays
10/03/1984EP0120717A2 Anthraquinone dyes and liquid crystal compositions containing the dyes
10/03/1984EP0120627A1 Cyanotercyclohexane derivatives
10/03/1984EP0120560A2 Liquid crystal materials and additive compounds containing a bicyclo(2,2,2,)octane structure suitable for use in them
10/03/1984EP0120463A2 Anthraquinone dyes and liquid crystal compositions including the same
10/02/1984US4474679 Display devices
09/1984
09/26/1984EP0119756A1 Fluorobenzene derivatives and liquid crystal compositions containing the same
09/26/1984EP0119271A1 Liquid crystalline polymer compositions, process, and products.
09/26/1984EP0119202A1 Liquid crystalline poly(2,6-benzothiazole) compositions, process and products
09/26/1984EP0119192A1 Liquid crystalline polymer compositions, process, and products
09/25/1984US4473487 4-Fluorobiphenyl derivatives, their preparation, and dielectrics and electro-optical display element containing them
09/25/1984US4473486 Composition for liquid crystal color display elements
09/18/1984US4472592 Cyclohexyl phenyl esters
09/18/1984US4472293 High temperature liquid crystal substances of four rings and liquid crystal compositions containing the same
09/18/1984US4472292 Liquid crystalline dielectric, new dichroitic naphthoquinone dyestuffs and electro-optical indicator element
09/12/1984EP0118061A2 Liquid crystal guest host systems
09/12/1984EP0118046A1 Liquid crystal compounds, liquid crystal compositions and liquid crystal display devices
09/05/1984EP0117631A1 Disubstituted ethanes and their use in liquid crystal materials and devices
09/05/1984EP0117476A1 Tetrahydropyranes
09/04/1984US4469618 Low viscosity at low temperatures
09/04/1984US4469452 Indicator system and means for irreversibly recording a temperature limit
08/1984
08/28/1984US4468364 Process for extruding thermotropic liquid crystalline polymers
08/28/1984US4468340 Liquid-crystalline phenylcyclohexane derivatives
08/22/1984EP0116218A2 Substituted anthracene-type isotropic dyes for liquid crystal display devices
08/21/1984US4466899 Dyes for use in liquid crystal mixtures
08/15/1984EP0115693A2 Liquid crystalline compounds and mixtures thereof
08/15/1984EP0115683A2 Composition comprising substituted anthraquinone-type isotropic dyes for liquid crystal display devices
08/14/1984US4465338 Anthraquinone dyes, liquid crystals
08/08/1984EP0115429A1 Biphenyls and their use in the production of liquid crystal compounds
08/08/1984EP0115136A2 Cycloalkyl-type isotropic dyes for liquid crystal display devices
08/08/1984EP0115134A2 A storage-type liquid crystal composition
08/07/1984US4464283 Liquid crystal composition
08/07/1984US4464020 Smectic liquid crystal display device without a nematic phase
07/1984
07/31/1984US4462924 Liquid crystal materials and devices
07/31/1984US4462923 Disubstituted pyrimidines
07/17/1984US4460770 Liquid crystal mixture
07/17/1984US4460492 To reflect light in visible spectrum and used in magnetic, electric or thermal optic devices
07/17/1984CA1171099A1 Liquid crystalline fluorine-containing cyclohexylbiphenyls and dielectrics and electro- optical display elements based thereon
07/11/1984EP0113293A1 Liquid crystals family with a smectic A phase, and process for its preparation
07/10/1984US4459218 Composition for liquid crystal color display
07/10/1984CA1170417A1 Process for extruding liquid crystal polymer
07/03/1984US4457962 Molded article comprised of a thermotropic liquid crystal line polymer with an inherently weak weld line incorporated therein
07/03/1984US4457859 Mesomorphic material containing 2,2'-azoimidazole compounds containing 1,1'-benzylideneamino substituents
06/1984
06/27/1984EP0111779A2 Azo dyestuffs and liquid crystal matter containing azo dyestuffs
06/27/1984EP0111695A2 Pyridazine derivatives
06/26/1984US4456638 Polymer packaging material for liquid crystal cell
06/26/1984US4456545 Dichroitic anthraquinone dyestuffs useful in liquid crystalline dielectrics and electro-optical indicator elements
06/20/1984EP0111197A2 Anthraquinone dyes, their preparation and use, as well as dichroic material containing anthraquinone dyes
06/19/1984US4455443 Nematic halogen Compound
06/19/1984US4455261 4-N-Alkylbenzoyloxy-3'-fluoro-4'-cyanobenzenes
06/19/1984US4455253 For liquid crystal displays
06/13/1984EP0110299A2 Smectic liquid crystal compounds and liquid crystal compositions
06/13/1984EP0110205A2 Coloured liquid crystal mixtures containing phenyl ethanes
06/12/1984US4454057 Containing perylene dye
06/05/1984US4452719 4-(Trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters