Process for reducing the permeability of plastics materials

The permeability of a plastics material is reduced by surface-fluorinating at least a portion of the surface of a plastics material to produce a surface-fluorinated plastics material and then exposing said surface-fluorinated plastics material or a surface-fluorinated plastics material derived there...

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Bibliographische Detailangaben
Hauptverfasser:	KHARITONOV, ALEXANDR PAVLOVICH, TAEGE, REINER REINHARD WILHELM, FERRIER, GORDON GEORGE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The permeability of a plastics material is reduced by surface-fluorinating at least a portion of the surface of a plastics material to produce a surface-fluorinated plastics material and then exposing said surface-fluorinated plastics material or a surface-fluorinated plastics material derived therefrom to a fluid comprising at least one stabilizer. The fluid is preferably gaseous and suitable stabilizers are antioxidants and include triethylamine. Permeability of the plastics material to organic solvent is thereby reduced.