基本信息:
- 专利标题： 中空絲膜及其製法
- 专利标题（英）：Hollow fiber membrane and method for producing the same
- 专利标题（中）：中空丝膜及其制法
- 申请号：TW091122637 申请日：2002-10-01
- 公开(公告)号：TW572776B 公开(公告)日：2004-01-21
- 发明人： 岸進一 SHIN-ICHI MINEGISHI , 邊見昌弘 MASAHIRO HENMI , 石崎利之 TOSHIYUKI ISHIZAKI , 旦浩一 KOICHI DAN
- 申请人： 東麗股份有限公司 TORAY INDUSTRIES, INC.
- 申请人地址： 日本
- 专利权人： 東麗股份有限公司 TORAY INDUSTRIES, INC.
- 当前专利权人： 東麗股份有限公司 TORAY INDUSTRIES, INC.
- 当前专利权人地址： 日本
- 代理人： 何金塗; 何秋遠
- 优先权： 日本 2001-308671 20011004 日本 2001-308672 20011004
- 主分类号： B01D
- IPC分类号： B01D ; D01D
本發明之製造中空絲膜之方法，其特徵在於：其係使含有聚氟化亞乙烯系樹脂及該樹脂的貧溶媒，而溫度在相分離以上之聚氟化亞乙烯樹脂溶液，於相分離溫度以下之冷卻浴中吐出並使之凝固。
又，本發明之中空絲膜，其特徵在於：其係由至少一種之聚氟化亞乙烯系樹脂所形成，並具有平均直徑在0.3~30微米之範圍的球狀構造。
The invention provides a method for producing a hollow fiber membrane, which is a producing method being able to produce the hollow fiber membrane having high strength, high permeability and low loading to environment in low cost by using a polyfulorovinylidene resin with high chemical resistance. The method for producing a hollow fiber membrane according to the invention, which is characterized in that the polyfulorovinylidene resin solution consisting of polyfulorovinylidene resin and poor solvent of said resin and having temperature of less than phase separation temperature is discharged and frozen in a cooling bath with temperature lower than phase separation. Further, the hollow fiber membrane of the invention, which is characterized in that the membrane is formed from a polyfulorovinylidene resin and has a ball-shaped structure having an average diameter within a range of 0.3 to 30 mum.