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Title: Defect-free ultrahigh flux asymmetric membranes

Abstract

Defect-free, ultrahigh flux integrally-skinned asymmetric membranes having extremely thin surface layers (<0.2 .mu.m) comprised of glassy polymers are disclosed. The membranes are formed by casting an appropriate drope followed by forced convective evaporation of solvent to obtain a dry phase separated asymmetrical structure. The structure is then washed in a precipitation liquid and dried.

Inventors:
 [1];  [1]
  1. (Austin, TX)
Issue Date:
Research Org.:
University of Texas
OSTI Identifier:
867276
Patent Number(s):
4902422
Assignee:
Board Regents University of Texas System (Austin, TX) ORO
DOE Contract Number:  
FG05-86ER13507
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
defect-free; ultrahigh; flux; asymmetric; membranes; integrally-skinned; extremely; surface; layers; comprised; glassy; polymers; disclosed; formed; casting; appropriate; drope; followed; forced; convective; evaporation; solvent; obtain; dry; phase; separated; asymmetrical; structure; washed; precipitation; liquid; dried; phase separated; asymmetric membranes; surface layer; surface layers; dry phase; ultrahigh flux; phase separate; /210/96/264/

Citation Formats

Pinnau, Ingo, and Koros, William J. Defect-free ultrahigh flux asymmetric membranes. United States: N. p., 1990. Web.
Pinnau, Ingo, & Koros, William J. Defect-free ultrahigh flux asymmetric membranes. United States.
Pinnau, Ingo, and Koros, William J. Mon . "Defect-free ultrahigh flux asymmetric membranes". United States. https://www.osti.gov/servlets/purl/867276.
@article{osti_867276,
title = {Defect-free ultrahigh flux asymmetric membranes},
author = {Pinnau, Ingo and Koros, William J.},
abstractNote = {Defect-free, ultrahigh flux integrally-skinned asymmetric membranes having extremely thin surface layers (<0.2 .mu.m) comprised of glassy polymers are disclosed. The membranes are formed by casting an appropriate drope followed by forced convective evaporation of solvent to obtain a dry phase separated asymmetrical structure. The structure is then washed in a precipitation liquid and dried.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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