Abstract: A method of making an electric conductor wherein a plurality of glass strands are coated with a thermally curable liquid dispersion of conductive particles and the strands are heated to thermally cure the liquid dispersion. The method includes grouping the wetted strands in a roving and winding the roving about rotating heated drums, which flattens the roving into a ribbon and cures the liquid dispersion on the strands. The conductive roving is spirally wrapped with a non-conductive strand into a cylindrical core and then encased in a semi-conductive overcoat.

Abstract: A pintle wire for high load hinge connections, especially for textile webs and transmission belts, and method of making same, according to which endless synthetic fibers are braided individually or in strands and are embedded in high wear resistant and hydrolysis resistant heat hardenable material and interconnected thereby.

Abstract: An improved hickey roller and method of making same is provided wherein such roller has a longitudinal axis and comprises an outer portion made of an elastomeric matrix having a substantially cylindrical outside surface and a plurality of elongated fibers having inner portions embedded in the matrix and outer portions extending outwardly from the cylindrical surface to define a brushlike construction. The elongated fibers are arranged approximately parallel to the longitudinal axis and the fibers have a denier ranging between 4 and 8 and each fiber has a cohesive strength which is greater than the cohesive strength of the matrix and greater than the adhesive force holding each fiber in the matrix.

Abstract: A process for coating a material, e.g. a vinyl material, to improve its wear resistance and the coated article produced thereby is disclosed. The coating comprises an interpolymer comprising from about 50-95% by weight polyvinyl chloride and from about 5-50% by weight of an acrylate.

Abstract: Apparatus and method are described for preparing a narrow trace of physiological fluid on a substrate from a discrete fluid pool. The trace so produced is substantially identical to traces manually prepared in that they are characterized by distinct macroscopic and microscopic zones. Automatic trace staining apparatus also is provided.

Abstract: A process for the manufacture of artificial leather which has a napped, suede or nubuck surface finish by contacting a natural, synthetic of semi-synthetic backing member with a polymeric system comprising a mixture of a heat-reactive latex and a carboxylated latex and which contains at least one dyestuff. Each of the latices is cross-linked in sequence while the contacted backing member is dried. The migration of non-polymeric components in the system of latices is suppressed during drying. The backing so treated is mechanically altered on the grain side of the backing member to provide an irregular leather-like surface thereto.

Abstract: A process for rendering synthetic materials, of synthetic fibers or mixtures of the same flame resistant which entails employing water insoluble flame retardant agents which are treated as colorless pigments, reduced to extremely finely divided condition, suspended in aqueous medium and applied as such or as part of a dispersed dye paste to the fabric, dried and set in place.

Abstract: The instant invention relates to thermoplastic polyurea powders, optionally containing urethane groups, characterized byA. a smooth, substantially spherical or lenticular surface,B. an average particle diameter of 5 to 1,000.mu., preferably 10 to 200.mu.,C. a urea group content, and, optionally, a urethane group content, of 8 to 30% by weight,D. an ionic group content of 0.01-0.15 milliequivalents per gram of solids, preferably 0.02-0.1 milliequivalent per gram andE. 0.1 to 10% by weight, preferably 0.2 to 5% by weight, of an organic dye incorporated in the polymer molecule by way of at least one urethane and/or urea group,And the process of manufacture thereof.

Abstract: A method of forming membrane covered laminate strips of a desired predetermined length from an elongated porous strip wherein said strip is impregnated at spaced predetermined sections with a fluid seal material to preclude fluid flow through such sections and is also coated on each face with a suitable membrane forming coating material to thereby form a laminate strip suitable for reverse osmosis and/or ultrafiltration usage. The resulting laminate strip is provided with a punched hole in a portion of the impregnated section to effect a fluid passageway opening therethrough and, additionally, is cut transversely through an intermediate portion of such section to result in the formation of a multiplicity of predetermined length laminate strips. A plurality of stacked strips, with the punched hole positions staggered in adjacent strips, or groups of strips, provides a simplified form of apparatus with an elongated serpentine flow path therethrough for separating the constituents of a fluid feed stream.

Abstract: A coating apparatus in which a coating material is passed from an internal reservoir through a narrow orifice to a surface to be coated. At the end of the orifice the apparatus has two surfaces which are adjacent the surface to be coated, one of which is closer to the surface to be coated and functions as a metering surface. A reservoir of coating material is built up between the other surface and the surface to be coated and coating material is metered therefrom. The apparatus is particularly suited for applying an imaging suspension to an electrode of a photoelectrophoretic imaging system.

Abstract: Apparatus for externally coating an elongate article having a low thermal mass comprises a coating channel, means for supplying coating powder to the coating channel to support and immerse an article, the coating channel having a substantially V-form cross-section with opposing sidewalls which converge in the downstream sense to maintain the required depth of coating powder, means for passing the article through the coating channel to an outlet thereof, means for heating the article before it enters the coating channel, means for vibrating the coating channel, and a conveyor which passes beneath the outlet of the coating channel in a direction parallel to the coating channel wherein the conveyor is arranged to receive the article from the coating channel together with a supporting compacted bed of coating powder in which the article remains immersed.

Abstract: A method of making an ironer roll cover which comprises impregnating a less than full-width longitudinal portion of a sheet of fabric with a liquid thermosetting resin and curing the resin. The unimpregnated portion of the fabric acts as a liner or padding for the impregnated portion, while the impregnated portion serves as the work-contacting surface. Because the liner portion and the work-engaging portion of the cover are integrally formed from a single sheet of fabric, no seam or stitching is required for joining the two portions. Thus, the unevenness caused by a seam is eliminated and manufacturing costs are reduced. In a preferred embodiment, liquid water is applied in a narrow band between the impregnated and unimpregnated sections of the fabric to achieve a less than full impregnation, thereby providing a transitional zone between the liner and the work-contacting portion of the cover.

Abstract: This invention relates to an improvement in a process for preparing reinforced, artificial sausage casings wherein a tubular porous web is passed through a die, impregnated with a polymeric dope, and the polymer regenerated. The improvement resides in employing a porous web having incorporated therein from about 25 to 500 ppm based on the dry weight of the porous web of an alkyl imidazoline ethoxylate of the formula ##EQU1## wherein R is a fatty acid radical having from 10 - 22 carbon atoms in the structure and x is a number from about 3 - 10.

Abstract: A method for coating a paint of high viscosity, wherein the paint is extruded in a filament-like form from a nozzle and is applied to a moving surface in a striped or convoluted pattern, and a gas is blown against the coated surface to smoothen it.

Abstract: A line cord of a telephone handset having individually insulated conductors is jacketed with an extrudable flexible clear flame retardant composition which includes a polyvinyl chloride resin (PVC), 10 to 55 parts by weight per 100 parts by weight of the PVC of a phthalate plasticizer, 3 to 50 parts by weight per 100 parts by weight of the PVC of a phosphate plasticizer, 2 to 5 parts by weight per 100 parts by weight of the PVC of a metallic stabilizer, 0.25 to 1.0 part by weight per 100 parts by weight of the PVC of a lubricant, 0.25 to 1.0 part by weight per 100 parts by weight of the PVC of an ultraviolet absorber, 1 to 4 parts by weight per 100 parts by weight of the PVC of an epoxy resin, and 1 to 8 parts by weight per 100 parts by weight of the PVC of an epoxy plasticizer.

Abstract: Method and apparatus for providing a completely encircling coating of an organic polymeric material on a localized region of a glass container. At a coating station, a glass container is rotated through at least 360.degree.. During the rotation, a material application head furnishes fluid organic polymeric material to the surface of the localized region of the glass container which is to be coated. Stop members hold the application head a fixed distance from the localized region and a doctoring edge of the application head helps form a uniform layer or coating of the organic polymeric material completely encircling the localized region.

Abstract: Disclosed is a sealing tape comprising a fabric medium impregnated with a plaster and adhesive slurry which is activated upon immersion in an adhesive-containing solution. The activated tape is used to join and seal joints of conduit and to encase insulated conduit. Methods and apparatus for making the tape are also disclosed.

Abstract: A method for constructing a relief sculptured sound grill comprising the steps of soaking a strip of flexible material in a starch solution and thereafter securing the flexible material between a male and female mold member so that the mold members form the desired relief sculpture on the flexible material. The strip of material is then dried and paint is applied to the relief sculpture and dried thereby permanently forming the relief sculpture on the strip of material. A frame is then secured around the periphery of the strip of material and the mold members are removed so that a hardener may be applied to the entire strip of material. The strip of material with the attached frame is then dried thus completing the relief sculptured sound grill of the present invention.

Abstract: Method for producing homogeneous surface alignment of liquid crystal materials by applying to the surfaces of transparent plates bounding a liquid crystal film a polymer which is subjected to a shear thinning technique to cause elongation and alignment of long chain polymers. In certain embodiments of the invention, the surfaces are coated with a polymer treated with a dichroic dye such that a polarizing film is formed adjacent the liquid crystal film. This eliminates the need for separate polarizers on opposite sides of a liquid crystal display.

Abstract: Sheets or films are rendered non-stick towards tacky substances by applying a coating composition containing specified quantities of (a) an .alpha.,.omega.-dihydroxydimethylpolysiloxane polymer, with a viscosity of at least 25,000 cPo at 25.degree.C, containing at most 0.1% by weight of hydroxyl groups, (b) a dimethylpolysiloxane rubber terminated at each end of its chain by a unit of the formula (CH.sub.3).sub.3 SiO.sub.0.5 or (CH.sub.3).sub.2 CH.sub.2 =CHSiO.sub.0.5, with a viscosity of at least 1 million cPo at 25.degree.C, (c) a crosslinking agent of the general formula (Q).sub.4.sub.-n Si[(OCH.sub.2 CH.sub.2).sub.p OQ'].sub.

Abstract: Mattress fabrics or the like rendered fire-resistant by coating the underside with a polymeric binder having dispersed therein from 30-60% by weight of a flake- or leaf-shaped heat conductive material selected from the group consisting of aluminum and graphite of from 50-400 mesh.

Abstract: A process for controlling the amount of polymer applied to a lace in which a powdered heat is applied to melt the polymer and the composite is passed through a die to consolidate the product and remove excess polymer, the control being effected by detecting the amount of excess molten polymer and automatically adjusting the polymer input. The process is also suitable for controlling the amount of polymer applied in a process for coating a lace.