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Title:
COMPOSITE HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE MODULE
Document Type and Number:
WIPO Patent Application WO/2013/147186
Kind Code:
A1
Abstract:
This composite hollow fiber membrane comprises a gas-permeable non-porous homogeneous layer which has a polyolefin resin (A) as the main component and a porous support layer which is made of a polyolefin resin (B) and which supports said non-porous homogeneous layer, and the composite hollow fiber membrane is characterized in that the polyolefin resin (A) of non-porous homogeneous layer is a block copolymer of ethylene units and at least one type of olefin unit selected from α-olefin units having a carbon number of 3-20. By this means, a gas-permeable composite hollow fiber membrane is provided which has good gas permeability, reduces the impact of condensate on the performance of a gas dissolving module, and has excellent elution properties.

Inventors:
SHIBATA NORITAKA (JP)
Application Number:
PCT/JP2013/059594
Publication Date:
October 03, 2013
Filing Date:
March 29, 2013
Export Citation:
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Assignee:
MITSUBISHI RAYON CO (JP)
International Classes:
B01D71/26; B01D63/02; B01D69/08; B01D69/10; B01D69/12; B01F1/00; B01F5/06; D01D5/24; D01F8/06
Domestic Patent References:
WO2012043613A12012-04-05
Foreign References:
JP2008272696A2008-11-13
JP2008289977A2008-12-04
JPH07116483A1995-05-09
JP2000271549A2000-10-03
JPH02279158A1990-11-15
JP2010155207A2010-07-15
JPH01147565A1989-06-09
JP2007529617A2007-10-25
Other References:
See also references of EP 2832431A4
Attorney, Agent or Firm:
TSUJII Koichi et al. (JP)
辻居 Koichi (JP)
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