METHOD FOR PRODUCING A POROUS POLYTETRAFLUOROETHYLENE FILM

A porous polytetrafluoroethylene film comprising a fluororesin containing polytetrafluoroethylene as a main component, wherein an envelope surface area of resin fibers included per film having an area of 1 m 2 and a thickness of 25 µm is 4,000 m 2 or more, and a melting point peak is 333°C or lower....

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Bibliographische Detailangaben
Hauptverfasser:	TSUJIWAKI, Hiroyuki, HAYASHI, Fumihiro, UNO, Atsushi, MURATA, Aya
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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A porous polytetrafluoroethylene film comprising a fluororesin containing polytetrafluoroethylene as a main component, wherein an envelope surface area of resin fibers included per film having an area of 1 m 2 and a thickness of 25 µm is 4,000 m 2 or more, and a melting point peak is 333°C or lower.