The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2012
Filed:
Mar. 13, 2007
Rolf Van Bonn, Duisburg, DE;
Joachim Barbe, Tönisvorst, DE;
Rolf Van Bonn, Duisburg, DE;
Joachim Barbe, Tönisvorst, DE;
Abstract
The gas-phase fluorination of plastic articles is effected in a reaction chamberinto which the plastic articles to be fluorinated are introduced. The gas-phase fluorination is effected at normal or atmospheric ambient pressure of about 1 kPa in the reaction chamber. The gas-phase fluorination can be carried out statically or dynamically. The flushing carried out before the gas-phase fluorination for complete or partial removal of atmospheric oxygen from the reaction chambercan also be effected at atmospheric pressure in the reaction chamber. The reaction chamberis equipped with a coverand metering valves V, V, Vfor air, inert gas and gas mixture comprising fluorine and one or more inert gases are present on the entrance side of the reaction chamber, which is not vacuum-tight and hence also cannot be evacuated. The metering valves are connected to the reaction chambervia a flow meter. A release valve Vand a flow-through/shut-off valve Vare arranged in an exhaust gas lineof the reaction chamber