Title:
POLYTETRAFLUOROETHYLENE ULTRA-FINE FIBER TUBULAR MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/080465
Kind Code:
A1
Abstract:
Provided is a polytetrafluoroethylene fiber tubular membrane, comprising a polytetrafluoroethylene material body; the polytetrafluoroethylene has a fiber shape and the fiber has a diameter of 30-200 nm; the body has pore cavities of a pore diameter of 10-1000 nm and cavity walls formed by three-dimensional spaces surrounding the pore cavities; the pore cavities are uniformly distributed and each pore cavity is three-dimensionally open; the pore cavities being uniformly distributed means that the pore cavities are uniformly distributed over any unit volume on the porous material; the porosity is 65% or higher, and the light transmittance is 45% or higher.
Inventors:
YE LEI (CN)
Application Number:
PCT/CN2016/105253
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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