- 专利标题: Porous hollow-fiber membrane and production process therefor
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申请号: US16305757申请日: 2017-05-30
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公开(公告)号: US11077407B2公开(公告)日: 2021-08-03
- 发明人: Kenta Iwai , Masayuki Hanakawa , Tamotsu Kitade , Masahiro Kimura , Toshiyuki Ishizaki
- 申请人: TORAY INDUSTRIES, INC.
- 申请人地址: JP Tokyo
- 专利权人: TORAY INDUSTRIES, INC.
- 当前专利权人: TORAY INDUSTRIES, INC.
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JPJP2016-108319 20160531
- 国际申请: PCT/JP2017/020161 WO 20170530
- 国际公布: WO2017/209151 WO 20171207
- 主分类号: B01D69/02
- IPC分类号: B01D69/02 ; B01D69/08 ; B01D71/34 ; C08J9/26 ; B01D67/00 ; C02F1/44 ; C02F103/08
摘要:
The porous hollow-fiber membrane of the present invention comprises a fluororesin polymer, and has columnar structures oriented in the longitudinal direction thereof. In the porous hollow-fiber membrane, molecular chains of the fluororesin polymer have been oriented in the longitudinal direction of the porous hollow-fiber membrane and have an average value ν of Raman orientation parameter of 1.5-4.0.
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