Abstract: A composition, for use in such applications as electrostatographic toners and developers, containing a charge control agent adsorbed onto flow aid particles may be produced by a solution coating process including: (1) dissolving the charge control agent in at least one solvent; (2) adding the flow aid particles to the solvent and forming a suspension; (3) removing the solvent from the suspension after adsorption of the charge control agent onto the flow aid particles has occurred; and (4) drying and milling the material remaining after the solvent is removed from the suspension.

Abstract: A continuous spray coating apparatus and process generally comprises a housing defining a closed coating chamber, the coating chamber having inlet and outlet openings. Automatic doors are provided to cover the inlet and outlet openings, and the opening and closing of the doors is selectively controlled such that only one of the doors will be open at any one time during the spray coating operation. The introduction of the coating composition into the chamber creates a predetermined atmosphere within the chamber which is substantially saturated with constituents of the coating material, and by means of the automatic doors and control thereof, introduction of air from the outside atmosphere into the chamber is substantially prevented to maintain a predetermined atmosphere within the chamber.

Abstract: Process for restrengthening damaged paper, in which the aged, acid-damaged friable paper is treated with a solution containing isocyanate or with isocyanate vapour. Isocyanates having two or more isocyanate groups are preferably used.

Abstract: An apparatus for plating a printed circuit board including a non-through hole for connecting between a surface conductive layer and an interlayer wiring layer has a jig, a vessel, a supporting body carrying the jig for causing it to vibrate and swing in a plating liquid contained in the vessel, and a vacuum pump connected to the vessel for exhausting the air in the vessel thereby enhancing removal of bubbles in the non-through hole. A method of plating a printed circuit board includes the step of reducing the pressure inside the vessel simultaneously with the printed circuit board being subjected to the vibration and swinging actions thereby to remove a bubble existing inside the non-through hole. The removal of the bubble makes it possible to have a uniform plating film formed in an inner wall of the non-through hole and ensures the reliable electric connection to be established through the non-through hole between a surface conductive layer and interlayer conductive layers.

Abstract: Two rubber wiper blades are united with each other at lip portions so as to form a tandem rubber wiper blade, and notches are provided on both sides of a common lip portion at the center portion thereof. By providing the notches, a joint portion of the two rubber wiper blades is formed, which enables the tandem rubber wiper blade to be easily torn.

Abstract: A method is described for application a lubricant onto a sewing yarn. The sewing yarn to be lubricated is prepared as heap of yarn or as wound package. This heap respectively this package is superfused or perfused with a bath containing said lubricant. As fluid a supercritical fluid is selected. Whereby after the perfusion respectively the superfusion a temperature reduction, a pressure reduction and/or a volume increase is performed.

Abstract: A method and apparatus for continuously coating particulate such as rubber with liquid binder and applying the same to a substrate to form resilient athletic surfaces. Total encapsulation of the particulate with the liquid binder is accomplished prior to applying the mix to the substrate. In addition, the method of delivery of the particulate and binder maintains the ratios thereof uniform. In its method aspects, the instant invention involves separately introducing a stream of particulate and a stream of binder into a spray nozzle, where they are combined and delivered to the substrate. The apparatus includes a nozzle assembly having a central lumen and an elongated tip, the lumen being formed so as to force the particulate introduced therein to follow a circuitous or indirect path therethrough and thereby decrease its velocity prior to being ejected from the nozzle.

Abstract: A method of synthesizing encapsulated nanocrystals inside protective shells is disclosed. This method produces nanocrystals of metals, alloys, and compounds which are individually encapsulated by protective graphite shells which completely separate the nanocrystals from the environment. A separation method is also disclosed which eliminates most of all other debris except the encapsulated nanocrystals from the preparation product.

Abstract: A system for cutting and spraying a plurality of resin strands with an emulsion. The system includes a spray gun that has a cutter assembly that cuts a single resin thread into a plurality of individual strands. The cutter assembly is constructed to cut the strands into varying lengths. The strands are blown from the gun by a housing that is connected to a source of pressurized air. The housing has a pair of openings that are adapted to blow the strands parallel with the gun, so that the resin lies flat on the working surface. The gun also has a pair of nozzles attached to the housing and coupled to a progressive cavity pump that supplies an emulsion. The nozzles are adapted to spray the emulsion into the path of the resin spray, so that the resin and emulsion are mixed onto the working surface.

Abstract: A method of coating a substrate, for example, to abate asbestos or lead paint by encasement, includes dispersing particulate solids in at least one liquid thermosetting resin, about 100% of said solids having a U.S. Standard mesh size of about 225 mesh or smaller and at least about 10% of said solids having a U.S. Standard mesh size of about 325 mesh or smaller; dispersing an effective amount of at least one catalyst in said resin to cure said resin within a determined period of time, the resulting mixture being a curable resin system; and spraying said curable resin system on to said substrate using an airless spray system. A product made by such method and an article comprised of such a coating.

Abstract: A system for cutting and spraying a plurality of resin strands with an emulsion. The system includes a spray gun that has a cutter assembly that cuts a single resin thread into a plurality of individual strands. The cutter assembly is constructed to cut the strands into varying lengths. The strands are blown from the gun by a housing that is connected to a source of pressurized air. The housing has a pair of openings that are adapted to blow the strands parallel with the gun, so that the resin lies flat on the working surface. The gun also has a pair of nozzles attached to the housing and coupled to a progressive cavity pump that supplies an emulsion. The nozzles are adapted to spray the emulsion into the path of the resin spray, so that the resin and emulsion are mixed onto the working surface.

Abstract: The present invention relates to a process for the use of a novel emulsion composition in the printing industry. The composition when applied to printed substrates provides outstanding lubrication, antistatic and antismudge properties, as well as minimizes the occurrence of tears in the substrate. Additionally, the compositions of the present invention aid in the folding operation.The compositions of the present invention are emulsions. These emulsions are applied to the substrate surface after the ink is applied. The emulsion breaks causing the deposition of a uniform coating of composition of the current invention.The mixed emulsion composition contains one or more dimethylpolysiloxanes, mineral oil, a nonionic emulsification agent and water.

Abstract: A gumming roll preferably for use with apparatus for applying gum to blanks and pertains, has rollers in skidding contact for returning excess adhesive to an adhesive pan without substantial foaming of the adhesive.

Abstract: A process for continuously rendering finely divided, pyrogenic silica hydrophobic at low temperatures in the presence of a hydrophobicizing aid such as aliphatic alcohols having from 1 to 3 carbon atoms. The process of rendering silica hydrophobic is conducted at temperatures of from 60.degree. to 350.degree. C., and more preferably from 80.degree. to 150.degree. C., over a period of from 2 to 5 hours, and more preferably from 3 to 4 hours. The hydrophobicizing agents are known organohalosilanes and the preferred hydrophobicizing aid is methanol. The hydrophobicizing aid is used in amounts of from 2% to 15% by weight, and more preferably in amounts of from 2% to 10% by weight, based on the weight of silica used.

Abstract: An improved method for fabricating a circuit element through a substrate permits fabrication of large geometry vias between substrate sides. The improved method includes disposing a substrate (327) between two compressible layers (317, 339). Each of the layers (317, 339) has at least one aperture (345, 321) disposed therethrough. The substrate (327), has at least one via (333) aligned between the apertures (345, 321) where the via has an area smaller than an area of the apertures (345, 321). Next, a coating, preferably a liquid circuit element material (351) is disposed into one of the apertures (321) of one of the two compressible layers (339). A pressure (405) is applied between the two compressible layers (317, 339) causing the liquid circuit element material (351) to flow between the two compressible layers (317, 339), thereby coating the at least one via (333) of the substrate (327), thus providing an interconnect (609, 611) of the coating through the substrate (327).

Abstract: A crowned resilient roll whose diameter is continuously increased from axially opposite ends of the roll toward an axially middle point thereof is disclosed. The resilient roll includes a columnar roll body formed of a resilient material, and a coating layer formed on an outer circumferential surface of the roll body. The thickness of the coating layer is varied in an axial direction of the roll body, such that the coating layer has the largest thickness at an axially middle point of the roll body, and such that the thickness is gradually reduced from the middle point toward axially opposite ends of the roll body. Also disclosed is a method of making such a crowned resilient roll having a coating layer of varying thickness.

Abstract: A CVD reactor with a flat generally rectangularly shaped susceptor having a leading edge including a curve which is concave in the direction of gas flow through the reactor. The reactor produces epitaxial layers on semiconductor wafers in which the uniformity of the layer is dependent upon the radius of the concave curvature.

Abstract: The present invention is directed to methods and apparatus for effectively proportioning a mixture of compressible and non-compressible fluids, wherein the resulting mixture has an almost constant density. The present invention is particularly useful for admixing supercritical fluids with polymeric coating compositions for various spray applications.

Abstract: A method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.

Abstract: Continuous process for recovering the overspray of aqueous coating agents during spray application by collecting it in an aqueous washing liquid which is continuously circulated in a circuit (A) to the spray booth, where the solids concentration of said washing liquid is maintained within the range of 1-1.5 wt.-%, whereby a part of the washing liquid containing overspray is fed to a first ultrafiltration circuit (B) in which the solids concentration of the circulating liquid is maintained within a range of 8-15 wt.-%, a part of the circulating liquid from ultrafiltration circuit (B) being fed to a further ultrafiltration circuit (C) in which the solids concentration of the circulating liquid is maintained approximately constant within a range between 35 wt.