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Title: Hollow fiber membranes and methods for forming same

The invention provides improved hollow fiber membranes having at least two layers, and methods for forming the same. The methods include co-extruding a first composition, a second composition, and a third composition to form a dual layer hollow fiber membrane. The first composition includes a glassy polymer; the second composition includes a polysiloxane; and the third composition includes a bore fluid. The dual layer hollow fiber membranes include a first layer and a second layer, the first layer being a porous layer which includes the glassy polymer of the first composition, and the second layer being a polysiloxane layer which includes the polysiloxane of the second composition.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1243350
Assignee:
General Electric Company (Niskayuna, NY) NETL
Patent Number(s):
9,289,730
Application Number:
13/945,459
Contract Number:
FE0007514
Resource Relation:
Patent File Date: 2013 Jul 18
Research Org:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Integrally skinned polysulfone hollow fiber membranes for pervaporation
journal, October 1994
  • Koops, G. H.; Nolten, J. A. M.; Mulder, M. H. V.
  • Journal of Applied Polymer Science, Vol. 54, Issue 3, p. 385-404
  • DOI: 10.1002/app.1994.070540313

Formation of defect-free polyimide hollow fiber membranes for gas separations
journal, March 2000

Mixed matrix membranes (MMMs) comprising organic polymers with dispersed inorganic fillers for gas separation
journal, April 2007

Efficient development of effective hollow fiber membranes for gas separations from novel polymers
journal, July 2006
  • Wallace, David W.; Staudt-Bickel, Claudia; Koros, William J.
  • Journal of Membrane Science, Vol. 278, Issue 1-2, p. 92-104
  • DOI: 10.1016/j.memsci.2005.11.001

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