Title:
ポリフッ化ビニリデン樹脂製中空糸膜の再生方法
Document Type and Number:
Japanese Patent JP4517890
Kind Code:
B2
Abstract:
To provide a method for regenerating a fluorine resin film used as a water treating film without incinerating or landfilling.
The fluorine resin film is regenerated by the step of removing impurities contained in the fluorine resin film, the step of crushing the fluorine resin film after removing the impurities to make a fluorine resin, and the step of performing extrusion molding by supplying the fluorine resin after being crushed into an extruder while heating it near the melting temperature of the fluorine resin. Further, a part or the whole of the fluorine resin regenerated by this method is used to make the fluorine resin film.
COPYRIGHT: (C)2006,JPO&NCIPI
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Inventors:
Atsushi Okamoto
Application Number:
JP2005053039A
Publication Date:
August 04, 2010
Filing Date:
February 28, 2005
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
B29B17/00; B01D69/08; B01D71/34; D01F6/12; B29K27/12
Domestic Patent References:
| JP11300741A | ||||
| JP2002036237A | ||||
| JP2001253969A | ||||
| JP2004000886A |