Abstract:
A substrate is coated with a coating material by rubbing substantially dry, discrete particles of the coating material across the surface of the substrate with a sufficient rate of energy input to cause them to adhere. Preferably, the particles are carried on the surface of a soft, resilient buffing wheel rotating sufficiently rapidly to give peripheral speeds of from 2 to 200 m/s. Exemplified coating materials include metals, metal oxides and plastics.
Abstract:
A method is proposed with which chemically defined bodies can be deposited on a substrate. Therefore, the bodies are fixed with a predetermined orientation on a stamping means which is then approached to the substrate whereby the bodies are deposited. While releasing the stamping means the bodies remain on the substrate keeping their orientation.
Abstract:
Articles such as plastics containers (1) for packaging are given a precisely-controlled band of barrier coating material (80) by a moving donor belt (4) or a rotating wheel, the material having been first applied to the belt or wheel, e.g. by a jet (12) such that excess material is removed before application to the articles. The remainder of the article can then be coated if desired by another method.
Abstract:
An application roll (5) is magnetically held against a surface medium (1) or against a mask. The material to be applied is evenly distributed over the surface of the application roll (5). Optionally, the container containing the material is movably fixed to a table.
Abstract:
A method and apparatus for coating a metallic substrate (22) with an oily substance. Use is made of a support member (30) having a ceramic coating (70) comprising an oxide ceramic material, onto which is applied the oily substance to form a film of the oily substance uniformly covering the surface of the ceramic coating (70), the film of oily substance breaking down into micro-droplets having substantially uniform size and distribution. The micro-droplets of oily substance are thereafter transferred onto a surface of the metallic substrate (22) without substantially altering the size and distribution of the micro-droplets, thereby coating the surface of the metallic substrate (22) with the oily substance. The invention is particularly useful for coating the positive electrode of a high-speed electrocoagulation printing apparatus with an olefinic substance containing a metal oxide.
Abstract:
The present invention relates to lubricant-containing pellets of thermoplastic resins, which pellets are characterized in that the lubricant is present thereon in the form of a film firmly adhering to the surface of the pellets, and to a process for their production and their use in injection molding machines.
Abstract:
A method of dispensing liquid adhesive includes passing a liquid adhesive through the open mouth of a container, through a depressable valve (34) frictionally received in the mouth of the container and through a flexible porous reticulated foam cover (30) affixed over the valve (34) and mouth to receive and apply the adhesive released through the valve (34). The adhesive is left to cure in the foam cover (30) and form a seal. The foam cover (30) is then flexed to break the seal and reestablish liquid adhesive flow through the cover (30). The valve (34) includes a valve assembly with a body (36) and integrally connected helical spring members (38) that are received and retained in a retainer ring (12).
Abstract:
A base coat applicator utlizing an in-feed chute which provides supply of cans which are mounted on mandrels for application of base coat material by applicator wheels (26, 30). The mandrels are rotated so that surface speed of the cans matches the applicator wheel speed to prevent smearing. Independent control of the inventory production speed of the base coat applicator machine and the applicator wheels allows any desired number of base coat layers to be applied to the cans. Two applicator wheels are used to reduce surface speeds to prevent misting and slinging of base coat material from the applicator wheels and can surfaces. The applicator assembly (15) is automatically withdrawn when the supply of cans is not present and can be manually withdrawn by the operator to prevent application of base coat material to cans or empty mandrels. Disk transfer unit (92) is utilized to transfer the coated cans to deco pin chain.
Abstract:
Apparatus for coating the bottom rim surface (82) of a container (10) using a vacuum conveyor (20) for holding and transporting a plurality of empty containers (10) with the bottom rim surfaces (82) exposed so that the bottom rim surfaces (82) may be passed over a coating applicator roll (88) and through a curing oven (60) to provide the bottom rim surfaces with a cured coating and wherein the vacuum conveyor (20) is wide enough so that a plurality of the bottom rim surfaces (82) may be coated at the same time and then passed through the curing oven (60). Also, the durometer of the application roll (88) can be varied so as to apply a coating of uniform thickness or a coating of varying thickness.
Abstract:
A gravure coating process for producing electroconductive polymer films. Also, a method for detecting the presence of a specific analyte in a sample using an immunoassay format in which magnetic particles provide the solid phase and the signal is a dopant detectable by the change in conductivity of an electroconductive polymer coating an electrode. Additionally, magnetic devices for creating a strong force on the particles and the use of cacodylate to catalyze the production of a dopant, triiodide.