Title:
POLYTETRAFLUOROETHYLENE SUPERFINE HOLLOW FIBER MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/080455
Kind Code:
A1
Abstract:
A polytetrafluoroethylene superfine hollow fiber membrane, comprising a body of polytetrafluoroethylene material, the polytetrafluoroethylene material being fibrous with a fiber diameter of 30-200nm. The body has pore cavities with a pore diameter of 10nm-1000nm and cavity walls formed around the pore cavities in three-dimensional space. The pore cavities are distributed uniformly, each of the pore cavities being three-dimensionally through. The pore cavities are distributed uniformly means that the pore cavities are distributed uniformly in the porous material in a volume of any unit level. The porosity is greater than or equal to 75%, the tensile strength is 15N/mm2 or more, and the water pressure resistance is 3kg/cm2 or more.
Inventors:
YE LEI (CN)
Application Number:
PCT/CN2016/105226
Publication Date:
May 18, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
CHONGQING RUNZE PHARMACEUTICAL (CN)
International Classes:
B01D71/36; B01D69/04
Foreign References:
| CN101530750A | 2009-09-16 | |||
| CN105013344A | 2015-11-04 | |||
| CN102151493A | 2011-08-17 | |||
| CN103212308A | 2013-07-24 | |||
| US4043331A | 1977-08-23 |
Attorney, Agent or Firm:
CHONGQING HONGXU PATENT AGENCY CO., LTD. (CN)
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