Abstract: High density information discs, such as video discs, which have been treated with a fluorinating agent become resistant to and stable under conditions of high temperature and high relative humidity, even after exposure to such conditions for extended periods of time. The treatment with the fluorinating agent is accomplished by use of a bath of an aqueous solution of a "soft" fluorinating reagent, such as fluorosilicic acid or fluoroboric acid.

Abstract: High density information records comprising a conductive carbon-loaded polyvinylchloride record are lubricated with a fractionated methylalkylsiloxane lubricant which contains an hydroxylated amine and or its quaternary salt in an amount sufficient to reduce sensitivity of the records to moisture.

Abstract: Polyvinyl chloride base molding compositions containing conductive carbon particles which have been treated with a fatty acid chloride have reduced melt viscosities, improved processabilities, and increased electrical conductivities, as well as improved dispersion of the carbon particles in the molding compositions. High density information discs having improved playback performance can be readily molded from these compositions.

Abstract: A polyvinyl chloride based molding composition containing polymer grafted conductive carbon particles has good processability, low heat distortion temperature and good dispersion of the conductive particles and can be molded to form video discs of improved electrical properties.

Abstract: A conductive video disc replica is cleaned by washing with an aqueous solution comprising an oxidizing agent, a base and a surfactant of a fluorocarbon added in an amount so that the solution has a surface energy of about 35 dynes/cm.sup.2 or less. This solution removes metallic and oxygen-containing impurities from the surface of the disc and leaves a fluorinated surface.

Abstract: A method for the manufacture of multi-colored microlithographic displays especially fluorescent screens for cathode ray tubes is provided in which a film of an olefin sulfone polymer is applied to the substrate of the display. The film is then exposed in predetermined areas with a sufficient amount of radiation to depolymerize and lower the melting point of the polymer in the exposed areas. The film is then heated to a temperature above the softening point of the exposed polymer but below the softening point of unexposed polymer and contacted with the pigment or phosphor which is desired to be applied which selectively adheres to the exposed areas. The exposure and dusting are repeated for each application of different color pigments, toners or phosphors.

Abstract: Thin, stable, low surface energy perfluorinated polymer films can be applied to a substrate by glow discharging the substrate in the presence of a perfluorocycloalkane or -cycloolefin or perfluoroalkyl-substituted derivatives thereof.

Abstract: Carrier particles for use in an electrophotographic process are prepared by coating the surface of the carrier particles with a perfluoro carboxylic acid in a polymeric binder. The resulting carriers are long lived and capable of imparting a positive triboelectric charge to electroscopic powders mixed therewith.

Abstract: A polyvinyl chloride based molding composition containing polymer grafted conductive carbon particles has good processability, low heat distortion temperature and good dispersion of the conductive particles and can be molded to form video discs of improved electrical properties.

Abstract: Improved perpendicular alignment can be imparted to nematic liquid crystal cells by coating the cell walls with a perfluorinated polymer applied to the cell walls by glow discharge in the presence of a perfluorinated monomer. The coated cell walls are thermally stable at least up to about 525.degree. C.

Abstract: Coated carrier particles for use in an electrophotographic process are prepared by applying a thin coating of a phosphonitrile fluoroelastomer to the surface of the carrier particles. The coated carriers are long lived and capable of imparting a negative triboelectric charge to electroscopic powders mixed therewith.

Abstract: The method comprises applying to a surface to be etched a coating of a liquid composition comprising an acid-precipitated casein, alkali dichromate photosensitizer, sodium borate and water. The layer is dried, photoexposed, developed and baked to produce an etch-resistant stencil.

Abstract: Carrier particles for use in an electrophotographic process are prepared by coating a particulate matrix with an ion exchange resin dispersed in a polymeric binder. The resulting coated carrier particles are long lived and depending upon the choice of ion exchange resin can be used to impart a positive or negative triboelectric charge of the magnitude desired to electroscopic powders mixed therewith.

Abstract: A photosensitive composition useful in providing a positive or negative presensitized coating on a hydrophilic substrate in photosensitive reproduction comprises1. a cumulene compound having the general formula: ##EQU1## WHERE N= 1-6 AND R.sub.a, R.sub.b, R.sub.c and R.sub.d are selected from the group consisting of ##SPC1##Or H and wherein R.sub.1 and R.sub.2 are the same or different alkyl or aryl radical and each ##EQU2## group can be positioned at any other position on the benezene ring, such as ##SPC2##2. an organic polyhalogenated initiator solid at room temperature such as CBr.sub.4, and CHI.sub.3 ; and3. one or more solvents suitable to dissolve the cumulene compound and the organic polyhalogenated initiator such as CHI.sub.3.