Abstract: Control device for an electroluminescent display device, comprising an active layer of a semiconducting polymer of, for example pixels arranged in the form of a matrix, reducing flicker and crosstalk. The control device may be based on voltage control at which voltages across the pixels are at least 1.6 V, but is preferably based on current control, at which the duration of the data pulses determines the grey level.

Abstract: A description is given of an electroluminescent (EL) device (1) composed of polymeric LEDs comprising an active layer (7) of a conjugated polymer and a transparent polymeric electrode layer (5) having electroconductive areas (51) as electrodes. Like the active layer (7), the electrode layer (5) can be manufactured in a simple manner by spin coating. The electrode layer (5) is structured into conductive electrodes (51) by exposure to UV light. The electrodes (9) and (51) jointly form a matrix of LEDs for a display. When a flexible substrate (3) is used, a very bendable EL device is obtained.

Abstract: An illumination system has an active layer which includes an electroluminescent material, the active layer being located between an optically transparent electrode layer and a reflective electrode layer. A reflective polarizer is present at a side of the transparent electrode layer facing away from the active layer. A sub-beam incident on the polarizer and having an unwanted polarization is reflected back to the active layer, where it is again partially depolarized to recover a component having the desired state of polarization. The invention also relates to a flat-panel picture display device which includes such an illumination system.

Abstract: A description is given of an electroluminescent device (1) having an LED structure, which is composed of an active layer (7) of oriented liquid-crystalline and electroluminescent compounds and a transparent positive electrode layer (5) which is preferably made from an electroconductive polymer. By previously rubbing the electrode layer (5) in one direction with a velvet cloth, an orientation is induced in the molecules in the active layer (7), the orientation being frozen by cooling or polymerization. The electroluminescent device (1) emits polarized light whose direction of polarization is parallel to the direction of rubbing.

Abstract: An electroluminescent (EL) device is (1) composed of polymeric LEDs comprising an active layer (7) of a conjugated polymer and a transparent polymeric electrode layer (5) having electroconductive areas (51) as electrodes. Like the active layer (7), the electrode layer (5) can be manufactured in a simple manner by spin coating. The electrode layer (5) is structured into conductive electrodes (51) by exposure to UV light. The electrodes (9) and (51) jointly form a matrix of LEDs for a display. When a flexible substrate (3) is used, a very bendable EL device is obtained.

Abstract: A razor unit and a method of forming the same having a skin-engaging portion and a sequentially molded shaving aid on the shaving unit wherein at least four anchoring openings are disposed substantially equidistant from each other.

Abstract: According to this invention a lubricating strip comprising a honeycomb structure of polystyrene and a water soluble leachable shaving aid of high molecular weight polyethylene oxide is molded in situ on a razor cap made of thermoplastic material which has been previously injection molded.

Abstract: A lubricating strip having a honeycomb structure of polystyrene and a water soluble leachable shaving aid of high molecular weight polyethylene oxide is molded in situ on a razor cap made of thermoplastic material which has been previously injection molded.

Abstract: Described herein is a process for flocculating taconite tailings which comprises (a) forming a concentrated aqueous solution from a water-soluble ter- or higher polymer water-in oil emulsion, (b) diluting said concentrated aqueous solution of ter- or higher polymer formed in step (a) with additional water, (c) mixing the diluted solution of (b) with taconite tailings under appropriate floc forming conditions and (d) allowing the suspended solids to settle to form an essentially clear aqueous supernatant.

Abstract: Water-soluble, cationic polysaccharides, including quaternary nitrogen-containing cellulose ethers, containing hydrophobic substitution, are substantially water-soluble; provide aqueous solutions having enhanced viscosity, foaming and preferably improved surface properties; and possess utility in personal care, emulsions and cleansers.

Abstract: Water-soluble polymers are rapidly dissolved by employing a concentrate of (i) a water-soluble particulate polymer, (ii) a water-insoluble organic vehicle which is a non-solvent for the polymer, (iii) a nonionic surfactant agent having an HLB in the ranges of 3-5 and 9-13 and if necessary, a thickening agent.

Abstract: Compositions containing small amounts of named water soluble polymers in an aqueous coal slurry permit the extrusion, pumping and transport of higher solids content aqueous coal slurries.

Abstract: Non-toxic, water soluble compositions of high molecular weight poly(ethylene oxide), propylene glycol, water, and stabilizer allow the thermoplastic processing of high molecular weight poly(ethylene oxide) to proceed more facilely without extensive polymer decomposition. The compositions can be used to produce shaped articles such as films or tubes; they can also be used as a denture adhesive.

Abstract: A process for forming green ceramic bodies using an aqueous solution of a high molecular weight, water-soluble polymer as a lubricant.