Patents for C09K 19 - Liquid crystal materials (21,026)
12/1988
12/14/1988CN87101284A Process for crystal cyclohexyl benzene derivatives and novel nematic mixture containing the derivatives
12/13/1988US4791187 Linear polyurethane elastomers, and a process for the preparation thereof
12/07/1988EP0293942A2 Liquid crystal composition containing a pleochroic azo type compound
12/07/1988EP0293911A2 Polymer liquid crystal device
12/07/1988EP0293910A2 Liquid crystal composition and liquid crystal device containing same
12/07/1988EP0293870A1 Method for electric field orientation of liquid crystal polymers and oriented materials of liquid crystal polymers obtained by the method
12/07/1988EP0293764A2 Smectic liquid crystal compound
12/07/1988EP0293763A2 Smectic liquid crystal mixture
12/06/1988US4789751 Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoalkyloxirane methanol chiral tails
12/06/1988US4789508 Negative dielectric anisotropy, elasticity; display devices
12/01/1988WO1988009360A1 Liquid crystal phase
12/01/1988WO1988009322A1 Cyclobutane derivatives
12/01/1988WO1988009320A1 Biphenyl compound
12/01/1988DE3717484A1 Cyclobutanderivate Cyclobutane derivatives
12/01/1988DE3717397A1 Cyclohexene derivatives
11/1988
11/30/1988EP0292954A2 Use of optically active oxirane-2-carboxylic acid esters as dopants in liquid crystal mixtures containing them and new optically active oxirane-2-carboxylic acid esters
11/29/1988US4788363 Nematic methyltolans
11/29/1988US4788272 Wholly aromatic mesomorphic polyester amide imides and the preparation thereof
11/29/1988US4788000 Liquid-crystal composition
11/23/1988EP0292244A2 Polymeric liquid crystal composition and liquid crystal device
11/23/1988EP0291949A2 Nematic liquid crystal compound of four ring systems
11/23/1988EP0291884A2 Organopolysiloxanes which exhibit liquid crystallinity at low temperatures, and a method for their preparation
11/22/1988US4786730 Liquid crystal
11/22/1988US4786709 Organic high molecular liquid crystals
11/22/1988US4786706 Liquid-crystalline polycondensates which contain urea derived linking groups
11/22/1988US4786147 Nematic liquid cell weakly doped by a chiral solute and of the type having electrically controlled birefringence
11/17/1988WO1988008870A1 Liquid crystal material
11/17/1988EP0291427A1 Liquid-crystal polymers with mesogen side groups, made from ethylenically unsaturated polymers, and process for making them
11/17/1988EP0291082A2 A method for the production of liquid-crystalline organopolysiloxanes
11/17/1988EP0290570A1 Chiral or achiral cyclic compounds.
11/15/1988US4784793 Terpenoid derivatives and liquid crystal materials and devices containing them
11/15/1988US4784792 Optical displays, light switches
11/15/1988US4784791 Halogen-substituted phenyl benzyl ether derivatives
11/15/1988US4784471 2-fluorobenzonitrile derivatives and their use in optical display devices
11/09/1988EP0290061A1 Linear addition polymer with hyperpolarizable side groups
11/09/1988EP0289786A2 Use of compounds or of mixtures of compounds presenting a chiral, orthogonal, highly ordered smectic phase as switch or display medium in the region of this phase
11/08/1988US4783528 Steroidal lariat ethers
11/08/1988US4783280 Liquid crystal mixture
11/08/1988US4783150 Thermally electrically or magnetically controllable lyotropic liquid crystal optical devices
11/08/1988US4783148 Ferroelectric liquid crystal device
11/03/1988WO1988008441A1 Electro-optical liquid crystal display element
11/03/1988DE3712995A1 Media containing thiazole and thiadiazole derivatives and having a smectic liquid-crystalline phase
11/02/1988EP0289270A1 Optically active 2-biphenylpyrimidine derivatives and liquid crystal compositions containing them
11/02/1988EP0288813A1 Use of optically active 1,3-dioxolane-4-carboxylic-acid esters as doping agents in liquid crystals
11/02/1988EP0216880B1 Cyclohexane derivatives
11/01/1988US4781857 Halogen-containing pyridine compound and liquid crystal composition
11/01/1988US4781849 Lyotropic liquid crystal metalworking lubricant composition
10/1988
10/25/1988US4780543 Non linear optical element; crystals
10/25/1988US4780531 Dichoric dye for color liquid crystals having halogen substituted in perylene structure
10/25/1988US4780242 Halogen-containing, optically active liquid crystal compound and liquid crystal composition containing same
10/25/1988US4780241 Ferroelectric chiral smectic liquid crystal composition
10/25/1988US4780240 Liquid crystal composition
10/25/1988US4779961 4-(n-(2-(meth)acryoyloxyalk)piperazinyl)-41-nitrostilbene
10/25/1988US4779960 Twisted nematic liquid crystal display device having a particular pitch-to-thickness ratio
10/20/1988WO1988008019A1 Media containing derivatives of thiazole and thiadiazole, with smectic liquid-crystal phase
10/20/1988WO1988007992A1 Liquid-crystal derivatives of 2,5-disubstituted pyridine as components of liquid-crystal material, and a liquid-crystal material
10/20/1988DE3806716A1 Kristallin-fluessige mischungen Crystalline liquid mixtures
10/20/1988DE3711306A1 Tolan derivatives, and use of carbonitriles in liquid-crystalline phases for display elements based on the ECB effect
10/20/1988DE3710890A1 Bicyclooctane derivatives
10/18/1988US4778927 Improved heat resistance, stiffness, resilience, smoothness, and chemical resistance
10/18/1988US4778621 Ester compound
10/18/1988US4778620 Tolan derivative and a liquid crystal mixture containing the same
10/18/1988US4778619 Substituted indigo dyes having improved solubilities
10/18/1988US4778259 Ferroelectric liquid crystal devices having reverse twist angle and stable states resulting from A.C. excitation
10/13/1988DE3711510A1 New liquid crystal mustard oil cpds. - prepn. and use in lcd, esp. as dielectric in electro-optical display, with low viscosity and mol. association
10/12/1988EP0286063A1 Liquid crystalline composites
10/12/1988EP0286060A1 Liquid crystalline polymer composites
10/12/1988EP0286043A2 Use of compounds having a polar chiral group as components of liquid-crystal mixtures for the exploitation of the electroclinic effect
10/12/1988EP0285617A1 Liquid crystal phase.
10/12/1988EP0161320B1 Color cathode-ray tube
10/11/1988US4777280 Liquid crystals
10/11/1988US4776975 Nematic liquid crystal composition
10/11/1988US4776973 Liquid crystal electrooptics display device
10/06/1988WO1988007523A1 Acetylene derivatives as components of liquid crystal phases
10/06/1988WO1988007518A1 Novel alkanoyl ester compounds, intermediates therefor, and processes for their preparation
10/06/1988WO1988007516A1 Ethine derivatives as compounds of liquid crystal phases
10/06/1988WO1988007514A1 Tolanes
10/05/1988EP0285395A1 Phenyl-pyrimidine liquid crystal compounds and liquid crystal compositions containing the same
10/05/1988EP0285141A1 Mesomorphic compound and liquid crystal composition containing same
10/04/1988US4775226 Method to create memory in a dispersed smectic system
10/04/1988US4775223 Display device
09/1988
09/29/1988DE3807682A1 Acetylene compounds
09/28/1988EP0284371A2 Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements
09/28/1988EP0284093A1 Optically active pyridines
09/28/1988EP0284008A2 Use of derivatives of 5-phenyl pyrimidine as components of smectic liquid-crystalline mixtures
09/28/1988EP0283490A1 Process for the production of ethane derivatives.
09/27/1988US4774028 Liquid crystalline organosilicon compounds
09/27/1988US4774020 Pyrimidinyldioxane derivatives
09/27/1988CA1242517A1 Liquid crystal information storage device
09/21/1988EP0283326A2 Liquid crystal compounds with 4-(optically active alkyl)-3-cyanophenyl groups
09/21/1988EP0282963A2 A microdisperse polymer/liquid crystal composite
09/21/1988EP0282542A1 Process for the production of alkylene or cyclically linked compounds.
09/20/1988US4772416 Liquid crystals
09/14/1988EP0282300A1 A colored liquid-crystal display device
09/14/1988EP0281611A1 Liquid crystal phases for electro-optic display elements based on the ecb effect.
09/14/1988EP0281554A1 Complementary color liquid crystal display.
09/14/1988EP0118061B1 Liquid crystal guest host systems
09/13/1988US4770810 Liquid crystals of 4-octyl-4'cyanobiphenyl, 4-decyl-4'-cyanobiphenyl and a 1-(4-alkylcyclohexyl carbonyloxyphenyl)-2-(4-cyanophenyl) ethane
09/13/1988US4770809 Electronic displays
09/13/1988US4770503 Liquid crystalline compounds