APPARATUS AND PROCESS FOR SURFACE TREATMENT

摘要

APPARATUS AND PROCESS FOR SURFACE TREATMENT An apparatus and process are provided for the safe, economic and pollution-free exposure of articles to reactive fluids to alter their surface characteristics. The articles are exposed to one or more fluids which are transferred back and forth from a reaction chamber to a holding chamber. As the fluids are transferred they pass through a trap designed to remove reaction-by-products without affecting valuable reactant fluids. Since the fluids can be transferred under vacuum and the overall reaction can take place at relatively low temperatures, the process provides a convenient and safe method for handling reactive fluids. The process is particularly useful far the halogenation, for example fluorination, of a variety of articles, such as plastic containers, aerosol bottles and films to improve their barrier resistance to solvents and gases. S P E C I F I C A T I O N