Abstract:
The present invention relates to a coating device for small parts, in particular for lacquering mass produced small parts, like e.g. bolts, small plastic parts and similar, and it relates to a method for this purpose with a movable receiver element for receiving and moving the small parts, and a dispenser device, located at the receiver element for continuous or portioned dispensing the coating material into the receiver element, wherein a radiation emitter device is provided in the receiver element for emitting radiation for drying and/or hardening the coating material.
Abstract:
A method for coating thermoplastic resin beads for use in imitation pearls includes the steps of: applying to celluloid a surface treatment compound (A) dissolved into a mixed solution of acetone, ethylacetate, butylacetate, and benzene; coating the surface treated celluloid with compounds for an under coat and a mid coat, each compound being obtained by dissolving celluloid into a mixed solution of ethylacetate and amylacetate, and adding a pigment thereto; and coating the celluloid with a compound for a top coat (D) that is prepared by dissolving celluloid into ethylacetate, and adding a pigment thereto.
Abstract:
A method of creating a polymer coating on a medical device by powder coating the medical device with a powder material comprising a polymer and applying a solvent onto the powder coating to coalesce the powder coating into a continuous polymer film. A therapeutic agent may be mixed into the powder material, mixed into the coalescing solvent, or incorporated into the resulting polymer film. Also provided is a medical device having a polymer coating wherein the polymer coating is created according to the methods of the present invention.
Abstract:
The invention concerns a coating drum (60) for a single drum or, as the case may be, a multi-drum circulating coating device. The inside of the drum is subdivided into two rotation-symmetrical drum chambers (61 and 62) via a separating wall (67), which chambers are fillable with equal dispensed amounts of small parts through oppositely lying openings (73) of the drum casing (63). The openings (73) are closeable via lids or covers (68) provided pivotable on the drum (60).
Abstract:
A method of manufacturing a coated threaded fastener wherein the coating acts as a contaminant mask and the coating is applied as a dry powder mixture including a fluoropolymer resin, an inert filler and a coloring pigment.
Abstract:
A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide improved corrosion and ultraviolet radiation resistance when used with naturally corrosive or pressure preservative treated wood. The fastener assembly is coated with the polymer composition by vacuum coating a dispersion of the polymer composition in a solvent such as water and removing the solvent.
Abstract:
An improved, pre-coated aluminum-alloy aircraft component prepared by providing an aluminum-alloy component precursor to a coating apparatus having a fluidized-bed or mist apparatus, suspending the components in the fluidized-bed apparatus vertically at a distance from the bottom of the apparatus and introducing a coating to the apparatus to coat the components while being suspended in the airstream flowing through the apparatus. The non-contact, fluidized-bed or mist coating method allows for the coating of increased batch sizes in shorter coating times with decreased variations in coating thickness and uniformity.
Abstract:
An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article that is not in its final heat-treated state, and is preferably in its annealed state. A curable organic coating material is also provided. The method includes applying the organic coating material to the aluminum-alloy article, and heat-treating the coated aluminum article to its final heat-treated state, thereby simultaneously curing the organic coating.
Abstract:
An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also provided. The method includes anodizing the article precursor, preferably in chromic acid solution and without chemical sealing during anodizing, applying the organic coating material to the aluminum-alloy article precursor, and precipitation heat-treating the coated aluminum article precursor to its final heat-treated state, thereby simultaneously curing the organic coating. If the aluminum alloy temper is of the naturally aging type, it is optionally lightly deformed prior to precipitation treatment aging. The approach may also be applied to articles that are not solution treated/annealed and aged, by first overly deforming the article precursor so that the curing treatment of the coating also partially anneals the article precursor to the final desired deformation state.
Abstract:
A process for coating a metal fastener with a coating composition that has a particular affinity for plaster materials is disclosed. The composition comprises a mixture of a copolymer of an aromatic monomer, preferably styrene, and a monomer with .alpha., .beta. unsaturation with carboxyl groups, preferably maleic anhydride, and a thermoplastic resin disposed within an organic solvent. The resin is preferably polyvinyl acetate, and the solvent can be an aromatic solvent, a ketone, a chlorohydrocarbon, or a mixture there of. The coating composition is disposed within a reservoir, and the fastener is dipped into the composition within the reservoir. The coated fastener is then subsequently dried at approximately ambient temperature.