141 |
Optical elements having color-selective and polarization-selective
reflection containing LC pigments, and the production of these elements |
US435546 |
1995-05-05 |
US5683622A |
1997-11-04 |
Oliver Kratzschmar; Thilo Gebhard; Silvia Ehmann; Franz-Heinrich Kreuzer |
Wavelength-selective and polarization-selective optical elements contain pigments embedded in a transparent binder, in which the pigments include at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase. |
142 |
Liquid crystal compositions |
US334107 |
1994-11-04 |
US5523013A |
1996-06-04 |
Patrick J. Durbut; Myriam M. Mondin; Guy J. Broze |
A liquid detergent composition which is in liquid crystal form comprises a synthetic organic surface active agent, as the detergent component, which preferably includes one or more nonionic detergents of the ethoxylated higher fatty alcohol type, and a lesser proportion of anionic or cationic surfactant, such as sodium dialkyl sulfosuccinate or dicoco dimethyl ammonium chloride, a cosurfactant, such as tripropylene glycol butyl ether, a solvent for the soil, such as an isoparaffin of 9 to 11 carbon atoms or methyl cocoate (ester of methyl alcohol and coco acids) and water, with the water usually being the major component. Such compositions are useful for cold or room temperature cleaning of lipophilic soils, such as animal fats, from hard surfaces and from fabrics, and may be used as pre-treatments to loosen such soils from substrates to facilitate easier cleaning of dishes and laundry with conventional or the invented detergent compositions.The invention also relates to concentrated versions of the compositions, which are not in liquid crystal state but which upon dilution with water are converted to such state. Also within the invention are processes for pre-treating and cleaning materials soiled with lipophilic soils, using the invented liquid crystal detergent compositions. Additional processes of the invention are those in which liquid crystal detergent compositions are made by diluting concentrated compositions with water, and those in which lipophilic materials convert liquid crystal detergent compositions to microemulsion form, which latter processes occur during pre-spotting and cleaning applications when the liquid crystal detergent composition contacts the oily soil on surfaces being treated. |
143 |
Purification of liquid crystals and liquid crystal composition |
US164710 |
1993-12-10 |
US5422034A |
1995-06-06 |
Osamu Hirai; Noriji Tashiro; Osamu Watanabe; Hiroshi Nishizawa; Kenji Suzuki |
Liquid crystals purified by treating with porous particles of a compound having one or more imide groups, or a liquid crystal composition comprising one or more liquid crystals and porous particles of a compound having one or more imide groups can provide a liquid crystal cell having a high voltage retention rate and a liquid crystal display device having high display properties. |
144 |
Surface coating medium |
US43723 |
1993-04-08 |
US5376699A |
1994-12-27 |
Ian C. Sage |
The invention relates to an improved surface coating medium comprising:a thermochromic liquid crystal,a binder polymer being capable of film formation or sufficiently adhesive to allow handling of in a dry uncured state,the improvement wherein the medium further comprises a fusible polymer being capable of melting below 300.degree. C. to form a viscous fluid, and to form a nontacky film on cooling. The invention also relates to a method of coating a substrate with the medium and to a substrate, in particular fabric, coated with the medium. |
145 |
Aligned cholesteric liquid crystal inks |
US798881 |
1991-11-27 |
US5364557A |
1994-11-15 |
Sades M. Faris |
In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient because in the liquid phase they have to be confined in cells, and in the solid phase, they have to be applied at high temperature, and have to be aligned by some means to produce the optimum color. This invention solves the problem encountered in the CLC prior art, by making pre-aligned CLC platelets or flakes of appropriate thickness and size and mixing them in appropriate host fluids producing a novel CLC ink which can be applied at room temperature and without the need for alignment. The new pre-aligned room temperature CLC ink can be used as a substitute for conventional inks in almost all printing and plotting, and manual drawing and painting. Using the notch filter CLC platelets, the brightness is further enhanced. This invention teaches the CLC ink concepts, its applications and method of manufacturing. |
146 |
Pigments whose color depends on the viewing angle, their preparation and
use |
US155353 |
1993-11-22 |
US5362315A |
1994-11-08 |
Christoph Muller-Rees; Robert Maurer; Jurgen Stohrer; Franz-Heinrich Kreuzer; Silvia Jung; Franz Csellich |
The invention relates to pigments whose color depends on the viewing angle, their preparation and use.These pigments comprise oriented three-dimensionally crosslinked substances of liquid-crystalline structure having a chiral phase and, if desired, further dyes and pigments, the further dyes and pigments if present not serving as base for the oriented three-dimensionally crosslinked liquid-crystalline substances having a chiral phase. |
147 |
Method for changing the viscosity of a fluid comprising a liquid crystal
compound |
US751052 |
1991-08-28 |
US5354489A |
1994-10-11 |
Akio Inoue; Syunji Maniwa |
A homogeneous electrorheological fluid is disclosed, which mainly comprises a liquid crystal compound in which a plurality of liquid crystal groups are bonded to a molecular chain either directly or via a spacer, or comprises a lyotropic liquid crystal comprising a solute and a solvent. The electrorheological fluid exhibits higher electrorheological effects as well as high response rate and low power driving properties while being free from sedimentation or flocculation. |
148 |
Self reinforced thermoplastic composite laminate |
US801429 |
1991-12-02 |
US5268225A |
1993-12-07 |
Avraam Isayev |
Composite laminates are prepared from thin sheets of thermotropic liquid crystal polymer blends. A preferred blend contains 2 thermotropic liquid crystal polymers, i.e., a first liquid crystal polymer in LCP-1, and a second liquid crystal polymer (LCP-2), the second liquid crystal polymer having a higher melting point than the first. The second liquid crystal polymer is molecularly oriented and is preferably at least partially in the form of microscopic fibers in a matrix of the first liquid crystal polymer. The two liquid crystal polymers are phase separated in the solid phase and have overlapping melt processing temperatures. |
149 |
One- or multi-layered layer elements applied to supports and their
production |
US745572 |
1991-08-15 |
US5208111A |
1993-05-04 |
Gero Decher; Jong-Dal Hong |
One- or multi-layered layer elements applied to supports are described, which consist ofa) a modified support having an even surface, in which modification means the application of ions or ionisable compounds of the same charge over the entire area, andb) one or more layers made of organic materials which in each layer contain ions of the same charge, the ions of the first layer having the opposite charge of the modified support and in the case of several layers each further layer having again the opposite charge of the previous layer.Layer elements of this type applied to supports are produced by applying the individual layers from solutions of the organic materials in suitable solvents to modified supports by sequential physisorption (salt formation). |
150 |
Thermochromic effect coating |
US399634 |
1989-08-28 |
US5194183A |
1993-03-16 |
Jurgen Munch; Karl-Heinz Freese; Carl W. Metzger |
A thermochromic effect coating is provided which that it comprises an aqueous binder component including a flop effect pigment and an encapsulated thermochromic liquid crystal pigment. The particular combination in accordance with the present invention results in a coating with altered flop effect from the flop effect pigment as well as a more uniform color appearance from the liquid crystal pigment. |
151 |
Medical instrument |
US648206 |
1991-01-31 |
US5169397A |
1992-12-08 |
Kiyotoshi Sakashita; Ichiro Kagawa |
A medical instrument comprises an operating section and an insertion section connected to the operating section and adapted to be inserted into a living body, the insertion section including a tubular member formed of a liquid crystal polymer. The tubular member constituting the insertion section of the medical instrument or a channel tube disposed in the insertion section is formed thin-walled by using the liquid crystal polymer. |
152 |
Multiphase systems |
US266737 |
1988-11-03 |
US5096612A |
1992-03-17 |
Janos Pinter; Anna Pal nee Szekely; Laszlo Pap; Andras Szego ; Katalin Marmarosi nee Kellner |
A graft lyotropic liquid crystalline composition having a viscosity less than 10 Pa.s comprising a low amount of surfactant(s), optionally co-surfactant(s), and/or solvents, optionally a polymer in relative stretched state and which is partly or totally penetrable by the medium and a solid material having a surface free energy of 18 to 240 mN/m. |
153 |
Magnetic recording medium lubricated with a cholesteric liquid crystal |
US307498 |
1989-02-08 |
US5026577A |
1991-06-25 |
Girma Biresaw; Daniel J. Boland; Vince A. Paola; W. Thomas Evans; William P. Kampert; Ronald L. Abels |
A recording medium comprising a substrate, a memory layer supported by the substrate, and a liquid crystal lubricant overlying the recording medium. The recording medium preferably has a wear layer over the memory layer. The liquid crystal lubricant comprises a cholesteric liquid crystal and cholestryl oleyl carbonate is particularly preferred. The lubricant may be applied to the recording medium by dipping in a dilute solution containing a volatile solvent and then evaporating the solvent, leaving a thin lubricant film over the wear layer. |
154 |
Lyotropic liquid crystal metalworking lubricant composition |
US52384 |
1987-05-21 |
US4781849A |
1988-11-01 |
Girma Biresaw; Ronald P. Festa |
A metalworking lubricant comprising about 1-20 wt % natural or synthetic oil; about 0.5-30 wt % of a water-soluble surfactant, preferably a nonionic surfactant; about 1-20 wt % of an organic cosurfactant, preferably 1,2-octanediol; and about 50-97.5 wt % water containing less than about 1 wt % dissolved inorganic salts. The lubricant is preferably a lyotropic liquid crystal. |
155 |
Horological time display |
US3540209D |
1969-06-12 |
US3540209A |
1970-11-17 |
ZATSKY NORMAN C; KEELER EUGENE R |
|
156 |
INORGANIC EMITTING PARTICLE, INORGANIC EMITTING PARTICLE FILM, AND LED PACKAGE AND DISPLAY DEVICE INCLUDING THE SAME |
US15707440 |
2017-09-18 |
US20180083158A1 |
2018-03-22 |
Kyung-Kook JANG; Byung-Geol KIM; Dong-Young KIM; So-Mang KIM |
An optical member for a multi-panel display device according to an embodiment includes a first optical member located on a first display device and including optical fibers, a second optical member located on a second display device neighboring the first display device and including optical fibers, and an optical fiber triangular bar located to overlap a region where the first and second optical members are adjacent to each other, and including optical fibers, wherein each of the first and second optical members includes a chamfer portion corresponding to the optical fiber triangular bar at the region where the first and second optical members are adjacent to each other. |
157 |
LIGHT MODULATION ELEMENT |
US15524856 |
2015-10-08 |
US20170343847A1 |
2017-11-30 |
Bernd FIEBRANZ; Meike KRUMWIEDE; Simon SIEMIANOWSKI |
The invention relates to a light modulation element comprising a cholesteric liquid crystalline medium sandwiched between two substrates, each provided with an electrode structure, wherein at least one of the substrates is additionally provided with an alignment layer which is provided with a photoresist pattern consisting of periodic substantially parallel stripes. The invention is further related to a method of production of said light modulation element and to the use of said light modulation element in various types of optical and electro-optical devices, such as electro-optical displays, liquid crystal displays (LCDs), non-linear optic (NLO) devices, and optical information storage devices. |
158 |
POLYMERIZABLE COMPOSITION SOLUTION AND OPTICALLY ANISOTROPIC BODY INCLUDING THE SAME |
US14890453 |
2014-05-23 |
US20160115338A1 |
2016-04-28 |
Yasuhiro Kuwana; Hidetoshi Nakata; Koichi Endou; Mika Yamamoto; Kunihiko Kotani; Hiroshi Hasebe; Yoshiyuki Ono |
The present invention provides a polymerizable composition solution that has good storage stability and allows a polymerizable compound in the polymerizable composition to be aligned well with no defects after application to a base and removal of a solvent by a drying process and also provides an optically anisotropic body that includes the solution and has good alignment without any defects.The present invention provides a solution containing a polymerizable composition and an organic solvent, wherein the polymerizable composition contains 90 mass % or more of a polymerizable compound intramolecularly having a 2-methyl-1,4-phenylene group as represented by general formula (1) and provides an optically anisotropic body including the solution. |
159 |
Methods for recycling liquid crystal and forming reformulated liquid crystal mixtures |
US13225102 |
2011-09-02 |
US08968595B2 |
2015-03-03 |
Chien-Wei Lu; Huan-Yi Hung; Tsung-Chou Hsu; Chia-Lin Tsai; Yao-Ting Huang; Meng-Yuh Chen |
Provided are methods for recycling liquid crystal comprising: receiving at least one liquid crystal mixture; and forming a reformulated liquid crystal mixture using at least one portion of the at least one liquid crystal mixture. Also provided are reformulated liquid crystal mixtures comprising at least one recycled liquid crystal mixture and liquid crystals displays devices having one or more reformulated liquid crystal mixtures. |
160 |
Luminescent hybrid liquid crystal |
US12952345 |
2010-11-23 |
US08592616B2 |
2013-11-26 |
Yann Molard; Stéphane Cordier; Maria de los Angeles Amela Cortes; Frédérick Dorson |
Embodiments of the present disclosure include compounds including a M6 based cluster core with luminescent properties, methods for producing these compounds, as well as to luminescent materials with liquid crystalline properties including these compounds. |