Abstract:
The invention relates to a thermoplastic structure comprising at least one layer consisting of a composition comprising a copolyamide of formula X/10.T/Y, wherein: X represents either the residues of an aliphatic amino acid comprising between 8 and 18 carbon atoms, or a lactam, or the unit X1.X2 representing the residues resulting from the condensation of an aliphatic diamine comprising between 6 and 18 carbon atoms and a (cyclo)aliphatic diacid comprising between 6 and 18 carbon atoms; 10.T represents the residues resulting from the condensation of a decanediamine and terephthalic acid; and Y represents the residues resulting from the condensation of an aliphatic diamine comprising between 9 and 14 carbon atoms and an aromatic diacid, Y being different from the unit 10.T; the molar proportion of 10.T units in the copolyamide being higher than 0%; the molar proportion of Y units in relation to the group of 10.T and Y units being between 0 and 30%; and the proportion of X units being between 0.4 and 0.8 mole for a mole of semi-aromatic units 10.T and Y.
Abstract:
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.
Abstract:
The method for forming a coating film includes: supplying a first liquid from a nozzle to a cylindrical substrate to thereby form the coating film of the first liquid, wherein the method includes, pressing a member including a second liquid, to form a liquid film of the second liquid on the peripheral surface, and forming the coating film of the first liquid includes: supplying the first liquid onto the liquid film of the second liquid formed on the peripheral surface of the substrate to form a bead of the first liquid between the liquid-supplying unit and the liquid film of the second liquid, and extending the bead in a circumferential direction of the substrate.
Abstract:
A prosthetic heart valve includes a base and a plurality of polymeric leaflets. Each leaflet has a root portion coupled to the base, and each leaflet has an edge portion substantially opposite the root portion and movable relative to the root portion to coapt with a respective edge portion of at least one of the other leaflets of the plurality of leaflets. Each leaflet includes) at least two polymers along at least one portion of the leaflet, and each leaflet has a composition gradient of each of the at least two polymers along at least one portion of the leaflet.
Abstract:
An outer periphery coating method of honeycomb structure has coating steps where the honeycomb structure including a ring-like bulge portion is rotated; a coating member is brought into contact with a side surface of the honeycomb structure by pressing a side edge portion of a spatula via a rubber sheet, the coating member including the plate-like spatula in which a specific cut portion is formed in the one side edge portion and the side edge portion provided with the cut portion is an inclined surface inclined on a coating surface side, and the rubber sheet in which a cut is formed so that an end surface of the end portion is parallel to a back surface of the spatula when the end portion is bent along the side edge portion of the spatula; and a slurry coating material is supplied to the side surface of the honeycomb structure.
Abstract:
A prosthetic heart valve includes a base and a plurality of polymeric leaflets. Each leaflet has a root portion coupled to the base, and each leaflet has an edge portion substantially opposite the root portion and movable relative to the root portion to coapt with a respective edge portion of at least one of the other leaflets of the plurality of leaflets. Each leaflet includes) at least two polymers along at least one portion of the leaflet, and each leaflet has a composition gradient of each of the at least two polymers along at least one portion of the leaflet.
Abstract:
A method of coating a first porous substrate with a thermoplastic material comprises the steps of: rotating the substrate about an axis of the substrate; and applying the material in a liquefied state onto the substrate, wherein the step of applying is performed from the outside of the substrate. According to another embodiment, a method of coating a porous substrate with a thermoplastic material comprises the steps of: connecting a first porous substrate to a rotator; rotating the substrate about an axis of the substrate; pumping the material in a liquefied state from a receptacle to an application head; and applying the material in a liquefied state onto the substrate, wherein the step of applying is performed from the outside of the substrate. In certain embodiments, the material coated on the substrate is used to help remove at least a portion of a filtercake.
Abstract:
A wind turbine tower cleaning or coating apparatus is provided. The apparatus includes a frame which circumferentially extends at least partially around a wind turbine tower. A separator structure can be attached to the frame and extends between the frame and the wind turbine tower to position the frame at a predetermined distance away from the wind turbine tower. The separator structure can also include an attachment end which is attached to the frame and a slidabe end positionable near the wind turbine tower. A slider can be attached to the slidabe end of the separator structure and can slide on the surface of the wind turbine tower as the frame is raised and lowered on the wind turbine tower. A frame lift device can raise and lower the frame on the wind turbine tower. A plurality of sprayers can be positioned circumferentially along the frame and configured to selectively spray fluid onto the wind turbine tower. In one embodiment, a hoist device is attached to the frame to hoist the wind turbine cleaning or coating device vertically up and down the wind turbine tower.
Abstract:
Around a damaged area of a jacket of a flexible tube, a top coat layer whose adhesion to a polymer layer is weak is peeled off with an adhesive tape. The damaged area and its immediate surrounding area are sanded, and then wiped with ethanol for cleaning. A main agent and a hardening agent are heated and defoamed while being mixed to prepare a repair material. The repair material is applied to the damaged area and the immediate surrounding area. A heat shrink tube is opened along slits in an end portion and covers the flexible tube. The heat shrink tube is shrunk with hot air, pressing the repair material and making it flush with a surface of the jacket. The flexible tube is heated with an electric hot plate to harden the repair material. Thereafter, the heat shrink tube is peeled off from the flexible tube.
Abstract:
A stent crimping and coating apparatus is disclosed. The apparatus includes a plurality of crimping blades positioned in a radial array and collectively forming a central crimping lumen, wherein the plurality of crimping blades radially movable to alter the diameter of the central crimping lumen. Each of the crimping blades includes a first surface configured to at least in part define the central crimping lumen. One or more of the crimping blades includes a fluid channel extending therein and a plurality of openings in fluid communication with the fluid channel. The plurality of openings are located at the first surface of the one or more crimping blades and adapted to discharge a fluid into the central crimping lumen.