APPARATUS AND PROCESS FOR SURFACE TREATMENT

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 react...

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Bibliographische Detailangaben
Hauptverfasser:	HAWKINS, ALBERT W, HEDAYA, EDDIE, GORTSEMA, FRANK P, O'HARA, MATTHEW J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS FOR TANNING GENERAL PROCESSES OF COMPOUNDING HIDES LEATHER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PELTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SKINS SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	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