Abstract:
The present invention relates to an apparatus for manufacturing an adhesive-free gas barrier film comprising conveying means for conveying a film web; at least one first lock system for introducing the film web into a coating chamber of the apparatus; at least one first coating means by means of which the film web can be at least partially coated by depositing a barrier material in the coating chamber; and optionally at least one second lock system for expelling the film web out of the coating chamber; and at least one second coating means by means of which the coated film web can be at least partially coated by extrusion of a plastic melt.
Abstract:
Certain embodiments of the invention may include systems and methods curing a coated optical fiber. The method includes drawing the coated optical fiber through a gas chamber filled with a predetermined gas, drawing the fiber through a cure tube coupled to the gas chamber, and purging at least a portion of an inner surface of the cure tube with a purge gas as the coated optical fiber is drawn through the cure tube.
Abstract:
The present invention is related to a method or the deposition of a chlorinated polymeric layer onto a ubstrate, said method comprising the steps of:—generating a plasma in a gaseous medium by means of a plasma device;—placing the substrate in contact with the plasma, or in the post-plasma area;—introducing in said plasma or in the post-plasma area a chlorinated precursor of the chlorinated polymer.
Abstract:
Methods for making medical devices having porous coatings. Methods may comprise providing a tubing section having inner and outer surfaces and positioning a nozzle proximate to a target surface of the parent tubing section. A powder form of the porous coating may be delivered toward the tubing section, and a laser may be directed at the powder to melt the powder to form a melt pool. The melt pool can solidify to form the porous coating on the target surface. Portions of the parent tubing section may then be cut away to form the support structure of the medical device, such as a stent.
Abstract:
The invention is directed to a method and apparatus for coating substrates by a liquid spray so as to avoid entrapment of gaseous bubbles, particularly air bubbles, in the coating and desirably to thereby obtain bubble-free coatings. More particularly, the invention involves spray applying the coating to a substrate in an atmosphere consisting of gases having appreciable solubility in the applied coating, such as carbon dioxide, such that gas bubbles that may become entrapped in the coating are removed after application by the gases dissolving into the coating and diffusing to the surface.
Abstract:
A method and apparatus for coating a liquid coating composition to a moving web in which air entrained on the web is replaced by a gas having a higher solubility than air in the liquid coating composition. The moving web is exposed to the gas immediately before it arrives at a die through which the liquid coating composition is applied to the web. A vacuum system may be used to remove the air from the web prior to its exposure to the gas.
Abstract:
POLYVINYL CHLORIDE HOMOPOLYMER POWDER WHICH IS SUBSTANTIALLY FREE OF COPOLYMERIZABLE MONOMERS WHICH WILL SOFTEN THE POLYMER OR INCREASE ITS SOLUBILITY IN ORGANIC SOLVENTS SO THAT IT DOES NOT FUSE TO FORM A FILM WHEN HEATED IN THE ABSENCE OF PRESSURE IS FUSED AND COALESCED INTO A CONTINUOUS NON-POROUS FILM BY SUBJECTING A LAYER OF THE POWDER ON A SUBSTRATE TO ORGANIC SOLVENT VAPOR HAVING A TEMPERATURE IN EXCESS OF 100* C. WHILE CONDENSING THE SOLVENT VAPORS ON THE SUBSTRATE UNTIL THE FILM IS FORMED.
Abstract:
Described herein is a coating system comprising an applicator head that is configured to apply a coating to a surface of a workpiece, a shroud comprising a housing and an internal cavity located inside of the housing, and a humidifying apparatus comprising an output that is fluidly coupled to the shroud, wherein the humidifying apparatus configured to introduce a quantity of humid air to the internal cavity of the shroud.
Abstract:
A process for forming a fingerprint-resistant coating on a substrate comprising activating the substrate by exposure to a plasma, and then depositing on the activated substrate at least one alkyl backbone monolayer, and hydroxyl-polyhedral oligomeric silsesquioxane (OH-POSS) nanoparticles.