Abstract: A surface processing apparatus and method for painting or otherwise treating variously contoured surfaces. A track includes an elongated pliant beam to which a bending apparatus is attached for the purpose of conforming it to the contour of the surface to be processed. A carriage is mounted on the track for movement along the length thereof and in turn mounts a surface processing tool. The tool is operable to process a strip of the surface adjacent the track. Means is provided for moving the track incrementally along the surface, processing strips sequentially until the entire surface has been processed.

Abstract: Disclosed is a composition comprising crystalline polypropylene, a hydrogenated copolymer of vinyl toluene and alpha-methyl styrene, and low density polyethylene, which composition has improved extrudability compared to polypropylene alone. Also disclosed are a coated substrate in which the coating is said composition, and a method of making a coated substrate, which comprises extrusion coating the substrate with the composition.

Abstract: A method of increasing the wear resistance of a vulcanized elastomeric body having a surface region exposed to load, for instance a tire, cone or V-belt, conveyor belt, hose, resilient element, floor covering or the like, by changing its tensile stress state, wherein the elastomeric body is at least partially treated, including the surface region exposed to load, with a swelling agent constituting a medium which is soluble in the elastomer.

Abstract: A recovery system for solvent used to clean coating material from a multiple-color coating material dispensing system which undergoes frequent color changes includes a vacuum source over the recovered solvent in a recovery tank. The system is switched during the color change cycle from a mode in which solvent is dispensed to clean a pre-change color from a dispensing device to a mode in which the vacuum withdraws solvent remaining in a solvent delivery line to the dispensing device into the recovery tank. Solvent usage, disposal of discarded solvent, and other environmental considerations are salutarily affected.

Abstract: Automatic finish coating equipment employs a selectively variable low-pressure or "soft" air or solvent signal to control pushing of coating material through a feed tube from a coating material source to a coating material atomizing and dispensing device. This "soft fluid push" method maximizes the finish quality which can be achieved with coating materials having different characteristics, such as viscosities, in any operation in which frequent changes in coating material characteristics are experienced, such as, when frequent changes of coating material color are employed.

Abstract: Blistering of a coating composition applied to a surface which is disposed adjacent to a body of water such as ocean salt water when the coating is applied is avoided by applying the coating composition to the surface while water is flowing over the surface.

Abstract: A member to be coated is placed in a hollow portion of an external member and a coating material is charged in a gap between the member to be coated and the external member. The member to be coated has another member fixed thereto. The member to be coated is drawn from the hollow portion of the external member to form a coated film thereon.

Abstract: A metal article is coated on and at an edge thereof where at least two planar surfaces meet. The coating is carried out by initially coating the article at least partially at and on the edge, one surface at the edge is freed from coating in a mechanical way or an edge and a surface free from coating is prepared simultaneously in a mechanical way, as e.g. cutting off or sawing off part of the article. The exposed metal surface is then etched to form protecting coating projections and the etched surface is selectively coated. The article obtained has excellent and uniform resistant properties all over its surfaces.

Abstract: Automatic finish coating equipment employs a selectively variable low-pressure or "soft" air signal to control pushing of coating material through a feed tube from a coating material source to a coating material atomizing and dispensing device. This "soft air push" method maximizes the finish quality which can be achieved with coating materials having different characteristics, such as viscosities, in any operation in which frequent changes in coating material characteristics are experienced, such as, when frequent changes of coating material color are employed.

Abstract: A method for producing a lubricating, nonreactive surface layer on polyurethane by adsorption of a nonreactive species is disclosed.

Abstract: This invention relates to portable apparatus capable of being transported to a work site and which uses mechanical energy to lay down on a surface a solid metallurgically integrated massive metal coating that cannot be confused with paints, sprays or the like. The coating can be compared with hot dip galvanized coatings or electroplate coatings and done in tumbling barrels in industrial plants for years and sold under the trademarks Dyko and Peen Plate. The invention also relates to plating methods utilizing portable apparatus.The invention relates to different types of apparatus useful for various purposes such as the repairing by galvanizing of small rust spots on cars, the regilding of jewelry with tiny brushes rigidly mounted or equipped with ball and socket type joints, the plating of bridges, tanks, transmission towers, structural shapes, and large scale industrial uses.The invention also relates to the use of disposable pads especially adapted for the small time user.

Abstract: In application of metered finish to a high speed running yarn, the exit portion of the finish passageway is angled such that a positive atmospheric gauge pressure adjacent to the exit of said passageway is maintained.

Abstract: In application of metered finish to a high speed running yarn, a vent is provided in the finish passageway just prior to the exit.

Abstract: Solid particulate waste material is coated with a thermosetting resin which is compressed and cured to form a rigid core. The rigid core is coated with a flexible thermoplastic resin to provide a sealed encapsulated waste agglomerate which can withstand moderate compressive loads.

Abstract: A mechanical plating process in which a work piece is plated without the necessity of tumbling the work piece in a barrel. A plating member having a plurality of plating elements is positioned with the plating elements adjacent a surface to be plated. Void spaces between the plating elements form reservoirs for liquid plating medium, containing a carrier liquid and plating metal particles. The liquid plating medium is supplied to the work area and to the reservoirs formed by the void spaces. A mechanical plating layer is formed by the plating metal particles by moving the plating member over the work surface with the plating elements, such as bronze wire elements, urged against the work surface. Additional plating medium is supplied to the work area and to the reservoirs during the plating operation to build up an adherent, mechanically applied, metal coating. The plated metal particles are preferably supplied to the work zone in flocculated form.

Abstract: A method and apparatus for directing a foamed material, such as a foamed binder, across the lateral dimension of a moving surface in a uniform and controlled metered flow. In accordance with the method the foamed material is fed into an interior compartment of an applicator unit and is spread laterally as it moves through the compartment toward a laterally extending metering flow gap. After being laterally spread the foamed material is metered in a uniform, controlled manner across the lateral dimension of the moving surface. The applicator unit of this invention has a housing that includes a body portion and a door portion movable relative to each other to form, in a closed condition, the interior compartment that receives the foamed material. The body portion and door portion also aid in forming the laterally extending metering flow gap in communication with the interior compartment, and a passage extends through a wall of the housing to permit the foamed material to be introduced into the applicator unit.

Abstract: In a method of treating a surface such as a paper web with a treating agent, the treating agent is foamed under pressure and delivered via a passsageway to an application zone so as to come into close proximity with the surface to be treated which may be moved continuously past the application zone. A constriction, upstream in the direction of foam flow, of the passageway causes a pressure drop in the body of the foam causing bubbles of the foam to burst adjacent the surface, being treated whereby the treating agent is applied to the surface.

Abstract: A concrete surface is treated with a low viscosity sealant solution comprising an epoxy resin and an organic elastomeric polysulfide curing component which solution penetrates deeply into the surface and fills voids therein.

Abstract: A method of treating a hydrophilic polymer film is described in which the film is immersed at a temperature greater than 80.degree. C., and preferably greater than the crystalline melting point of the polymer, in a liquid capable of swelling the polymer. Polymers to which this method can be applied include graft copolymers of for example polyethylene, polypropylene, polytetrafluoroethylene, and nylon with acrylic or methacrylic acid. The films when treated have decreased electrical resistance and increased hydroxyl ion permeability and are then useful as battery separators and in other semi permeable membrane applications.

Abstract: A method for measuring pressures which comprises allowing a material whose pressure is to be measured to press against a recording sheet to form a color image due to the pressure, and evaluating the changes in the optical color density of the color hue of the resulting color image on the recording sheet, the color image formation due to the pressure being effected by contacting a synthetic polymer microcapsule layer containing a color former with a color developer layer under pressure, said microcapsule layer and said color developer layer being coated on the same surface of the support.

Abstract: Apparatus and the method of operation thereof are described for conveying an object, such as a microscopic slide, over a flat liquid-applying surface and interrupting the advance of the object for a predetermined time period while the object is at rest in position over the liquid-applying surface to achieve even application of a treating liquid to the object. The treating liquid can be injected into the space between the object and said flat liquid-applying surface while the object is substantially stationary or prior to interruption of the object movement.

Abstract: The invention relates to a mixture for activation of polytetrafluoroethylene and other fluoroplastics for bonding by means of adhesives. The mixture contains an organometallic compound of an alkali metal stabilized against effects of atmospheric oxygen and humidity and is particularly suitable for the surface activation in a lot or continuous production or for spaceous articles, where the simple use without protective atmosphere is advantageous. It consists of 1-60 wt. % of an organic polymer (mol. wt. above 4000) obtained by polymerization of ethylene, C.sub.1 -C.sub.3 alkyl, phenyl, or C.sub.1 -C.sub.10 alkoxy substituted theylene, ethylene oxide or propylene oxide or a mixture of these polymers, 1 mol of Li, Na or K metal, 0.4-2 mol of a hydrocarbon containing 2-4 bonded, condensed or aneled aromatic nuclei, 500-5000 ml of a solvent from a group comprising aliphatic and cycloaliphatic ethers or polyethers, and, if it is required, up to 50 vol.

Abstract: A clear resin protective coating is applied to a picture by spreading liquid resin over the picture surface from one edge using a spreader sheet under tension which is carried by a frame hinged parallel to one edge of the picture, so that a `wedge` of resin is advanced over the picture surface as the frame is lowered, forming upon curing a clear protective layer.

Abstract: Disclosed are compositions useful as deflocculants in recirculated aqueous systems utilized in the removal of paint sprays from air. These compositions comprise (a) a first component selected from water soluble salts of polyaminopolycarboxylic acids; water soluble salts of nitrilotriacetic acid; and mixtures thereof; (b) a second component selected from triethanolamine; water soluble salts of oxalic acid, tartaric acid, citric acid; gluconic acid and glucoheptonic acid; and mixtures thereof; and (c) a third component selected from sodium hydroxide, potassium hydroxide and mixtures thereof. Water systems containing small amounts of these compositions have a capacity of dissolving and dispersing large quantities of paint wastes.

Abstract: An ethylenimine prepolymer has been prepared by mixing certain alkyl halides with ethylenimine in molar ratios of about from 44:1 to 27:1, respectively, and allowing the mixture to stand for not more than about 16 hours.

Abstract: The present invention relates to a protective mattress sheet which is capable of being washed frequently.To this end, the sheet consists of a layer (6) of waterproof fibers which retain liquids by capillary action contained between two fabric layers (4) and (5), the upper one of which is a wide-meshed fabric and the lower one of which is waterproofed. The protective sheet is bordered by a bias (13). It may also comprise two small lateral grooves, each formed by folding back an edge (14), the small part which is folded back being secured by stitches (18). An absorbent material (17) may be easily introduced into the grooves.The present invention may be used both for hospital beds and in the hotel industry.

Abstract: Ethylene/vinyl acetate/isobutylene terpolymers illustrating increased melt indices in combination with lower stiffness and Vicat softening temperatures are superior hot melt coating resins.

Abstract: Concrete blocks and similar inorganic non-metallic building components may be provided with a glass coating on an external surface by flame spraying. The surface to be coated usually is heated prior to spraying.

Abstract: An improved dry process for the finishing of organic material, particularly textile material made from natural or synthetic organic fibres ist described, which comprises applying to an inert carrier preparations containing at least one textile finishing agent transferring at atmospheric pressure above 80.degree.C to the organic material, optionally a bonding agent stable below 250.degree.C, water and/or an organic solvent; drying of the said preparation; bringing into contact then of the treated side of the inert carrier with the surface of the organic material to be finished; subjecting thereupon of carrier and the material to be finished, optionally under mechanical pressure, to a heat treatment at a temperature of at least 80.degree.C until the said textile finishing agent has transferred to the material to be finished, and separating of the finished material from the carrier.