Title:
POLYOLEFIN-COMPOSITE HOLLOW-FIBER MEMBRANE AND MANUFACTURING METHOD FOR SAME, AND HOLLOW-FIBER MEMBRANE MODULE
Document Type and Number:
WIPO Patent Application WO/2012/043613
Kind Code:
A1
Abstract:
The present invention pertains to a polyolefin-composite hollow-fiber membrane and a manufacturing method for the same, said polyolefin-composite hollow-fiber membrane having: a homogenous membrane layer formed from polyolefins having a metal flow rate measured in accordance with JIS K7210 code D of 1.0g/10 minutes, or less, and an Mw/Mn ratio of not more than 4.0; and a porous membrane layer which is formed from polyolefins having an Mw/Mn ratio of 8.0-12.0. The present invention also pertains to a hollow-fiber membrane module which is equipped with the polyolefin-composite hollow-fiber membrane. The present invention enables the provision of a polyolefin-composite hollow-fiber membrane, a manufacturing method for the same and a hollow-fiber membrane module; the polyolefin-composite hollow-fiber membrane has excellent solvent resistance and gas permeability, and when used in the deaeration of dissolved gas in a drug solution, can suppress leakage of the drug solution to a high degree, and can efficiently reduce the amount of dissolved gas.
Inventors:
SHIBATA NORITAKA (JP)
Application Number:
PCT/JP2011/072157
Publication Date:
April 05, 2012
Filing Date:
September 28, 2011
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
SHIBATA NORITAKA (JP)
SHIBATA NORITAKA (JP)
International Classes:
B01D63/02; B01D71/26; B01D69/08; B01D69/10; B01D69/12; D01D5/24; D01F8/06
Foreign References:
| JP2009112896A | 2009-05-28 | |||
| JP2008272696A | 2008-11-13 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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