摘要:
A coating for a medical device or appliance may include a fluoropolymer and a polyimide. Such coatings may provide a lubricious exterior surface that facilitates insertion or displacement of a medical device in a body lumen. Some coatings that include a fluoropolymer and a polyimide may, among other functions and characteristics, provide increased strength and/or durability relative to some other coatings.
摘要:
A piling is supported substantially horizontally upon a carrier including at least two pairs of roller wheels on at least two separate bases spaced from each other and with the piling resting upon the roller wheels. A two part spray head mixes and sprays a coating material, such as a PTMEG type material, onto a lateral surface of the piling. Elongate spray passes are followed by partial rotation of the piling upon the roller wheels and further spray passes until a full layer of coating is applied. After early layers of coating material have been applied to the piling, a squeegee is passed longitudinally against the surface while pressing against the surface, to cause a tight bond. Thereafter, additional layers of coating material are applied to achieve the desired thickness for the overall coating. Finally, the outermost surface is worked with a squeegee to produce a desired surface finish.
摘要:
The present disclosure relates to extrusion coating systems (120), extrusion coated substrates, and processes for making the same. In some aspects, extrusion coating systems (120) as described herein may include an at least partially insulated (150, 152) outlet wall, which may facilitate production of coated substrates exhibiting a very desirable surface texture and appearance. Coated substrates of the present invention may be utilized in a variety of end applications, including, but not limited to, interior and exterior construction materials for homes, buildings, and furniture.
摘要:
The present invention concerns a method of applying a coating (11, 12) to a glass sleeve (3) with an inner surface (5) and an outer surface (7), which glass sleeve (3) is realized as a part of a solar-receiver tube (1). Thereby, the coating (11, 2) is solely applied to one of the said surfaces (5, 7) of the glass sleeve (3). The invention also concerns such glass sleeve (3) a method of fixing such glass sleeve (3) in an interior of a coating tank, such coating tank (35) and a fixing arrangement (28) for fixing such glass sleeve (3) in an interior of a coating tank (35).
摘要:
A process for producing tubular ceramic structures (11) is provided which comprises: a) rotating a mandrel-spindle assembly (25) comprising a mandrel component (27) and a spindle component (23), the mandrel component (27) being a heat shrinkable polymeric tube the external surface of which corresponds to the internal surface of the tubular ceramic structure (11) to be produced and the internal surface of which defines a bore (51), the spindle component (23) being in close fitting but slidably removable contact therewith; b) applying a ceramic-forming composition to the external surface of the mandrel component (27) of the rotating mandrel-spindle assembly (25) to produce a tubular ceramic structure (11) the internal surface of which is in contact with the external surface of the mandrel (27); c) removing the spindle (23) from the bore (51) of the mandrel (27) to provide a mandrel-tubular ceramic structure assembly (40) in which the interior surface of the tubular ceramic structure (11) remains in contact with the external surface of the mandrel (27); and, d) heat shrinking the mandrel component (27,56) of the mandrel-tubular ceramic structure assembly (40) to cause the mandrel (27,56) to undergo shrinkage to a reduced size in which the external surface of the mandrel (56) separates from the interior surface of the tubular ceramic structure (11) facilitating removal of the mandrel (56) therefrom.
摘要:
The present invention is directed to methods and processes for coating portions of a workpiece as well as to workpieces that have themselves been coated with one or more of these processes. Under these methods and processes a masking material may be positioned over a portion of a workpiece prior to applying coating to the workpiece. Once the coating is applied this masking may be removed to expose a portion of the workpiece that has not been coated.
摘要:
A method for coating at least a portion of a medical device having an interior is provided that includes holding the medical appliance from an outside surface, inserting a spray nozzle in a first opening accessing the interior of the medical appliance, and spraying the coating on an inside surface of the medical appliance with the spray nozzle. The method may include inserting a further spray nozzle in a second opening accessing the interior of the medical appliance. The spray nozzle and the further spray nozzle may be opposingly arranged to form a radial nozzle. A device adapted to hold a medical appliance is provided that includes at least two wires and a tensioning arrangement adapted to introduce tension into the two wires. The at least two wires may be adapted to support the medical appliance from an exterior of the medical appliance. An apparatus for coating an interior of a medical appliance is provided. A medical appliance having a differential coating applied by the method is provided. An apparatus for coating an exterior of a medical appliance is provided.
摘要:
A method for coating a substrate (10) includes rotating the substrate (10) about an axis, and applying a polymeric reaction mixture to a surface of the rotating substrate by ejecting the polymeric reaction mixture through a die (100). The die (100) has a branched system of channels for dividing an inlet stream of the polymeric reaction mixture into plural outlet streams. The outlet streams are spaced apart from each other such that the outlet streams flow together seamlessly after application to the substrate. The die (100) and the rotating substrate (10) are moved longitudinally relative to each other. And the material output rate of the mixture and the relative movement of the die (100) are synchronized with the rotational speed of the substrate (10) in such a way that successive convolutions of polymeric reaction mixture overlap and connect together seamlessly.
摘要:
A method for coating a substrate includes rotating the substrate about an axis, and applying a polymeric reaction mixture to a surface of the rotating substrate by ejecting the polymeric reaction mixture through a die. The die has a branched system of channels for dividing an inlet stream of the polymeric reaction mixture into plural outlet streams. The outlet streams are spaced apart from each other such that the outlet streams flow together seamlessly after application to the substrate. The die and the rotating substrate are moved longitudinally relative to each other. And the material output rate of the mixture and the relative movement of the die are synchronized with the rotational speed of the substrate in such a way that successive convolutions of polymeric reaction mixture overlap and connect together seamlessly.