Hollow fiber membrane, and method for producing hollow fiber membrane

One aspect of the present invention is a porous hollow fiber membrane comprising a vinylidene fluoride resin, said hollow fiber membrane being characterized in that the pore diameters of pores in the hollow fiber membrane have such an inclined structure that the pore diameters are gradually decrease...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Yoshitoshi, Tsukasa, Hayashi, Yusuke, Yabuno, Youhei
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPINNING TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	One aspect of the present invention is a porous hollow fiber membrane comprising a vinylidene fluoride resin, said hollow fiber membrane being characterized in that the pore diameters of pores in the hollow fiber membrane have such an inclined structure that the pore diameters are gradually decreased toward at least one direction on the inner and outer peripheral surface sides of the hollow fiber membrane, and also characterized in that a crosslinked product of a polyvinylpyrrolidone resin is contained in the hollow fiber membrane to impart hydrophilicity to the hollow fiber membrane.