Title:
HOLLOW-FIBER MEMBRANE MODULE, PROCESS FOR PRODUCING HOLLOW-FIBER MEMBRANE, AND PROCESS FOR PRODUCING HOLLOW-FIBER MEMBRANE MODULE
Document Type and Number:
WIPO Patent Application WO/2014/129373
Kind Code:
A1
Abstract:
[Problem] To provide a dry-type hollow-fiber membrane module which has excellent blood compatibility and less releases a component therefrom, the hollow-fiber membranes which have been built into the module, and a process for producing the hollow-fiber membrane module.
[Solution] A hollow-fiber membrane module having built-in hollow-fiber membranes which comprise a hydrophobic polymer and a hydrophilic-group-containing polymer, characterized by satisfying the following items.
(a) The hollow-fiber membranes have a water content of 10 wt% or less relative to the weight thereof
(b) The hydrophobic polymer contains no nitrogen, the hydrophilic-group-containing polymer contains nitrogen, and the hollow-fiber membranes have a nitrogen content of 0.05-0.4 wt%
(c) The content of the hydrophilic-group-containing polymer in the inner surface of each membrane is 20-45 wt%
(d) The amount of 2.0×10-3 mol/L aqueous potassium permanganate solution for titration consumed by the substances dissolved in 10 mL of a final priming liquid is 0.2 mL or less per m2 of the membrane area
Inventors:
HAYASHI AKIHIRO (JP)
OSABE MASAHIRO (JP)
UENO YOSHIYUKI (JP)
OSABE MASAHIRO (JP)
UENO YOSHIYUKI (JP)
Application Number:
PCT/JP2014/053295
Publication Date:
August 28, 2014
Filing Date:
February 13, 2014
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
A61M1/18; B01D63/02; B01D65/02; B01D69/08; B01D71/38; B01D71/40; B01D71/44; B01D71/68; D01D5/24; D01F6/76; C08L39/06; C08L81/06
Domestic Patent References:
| WO2009123088A1 | 2009-10-08 | |||
| WO2006016573A1 | 2006-02-16 | |||
| WO2013015046A1 | 2013-01-31 |
Foreign References:
| JP2002212333A | 2002-07-31 |
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