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Ultrathin-skinned asymmetric membranes by immiscible solvents treatment

Patent ·
OSTI ID:867194
 [1];  [1]
  1. Bend, OR
+ Show Author Affiliations
Improved semipermeable asymmetric fluid separation membranes useful in gas, vapor and liquid separations are disclosed. The membranes are prepared by substantially filling the pores of asymmetric cellulosic semipermeable membranes having a finely porous layer on one side thereof with a water immiscible organic liquid, followed by contacting the finely porous layer with water.
Research Organization:
Bend Research Inc
DOE Contract Number:
AC03-84ER80159
Assignee:
Bend Research, Inc. (Bend, OR)
Patent Number(s):
US 4883593
OSTI ID:
867194
Country of Publication:
United States
Language:
English

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Related Subjects

/210/96/264/
asymmetric
asymmetric cellulosic
asymmetric membranes
cellulosic
cellulosic semipermeable
contacting
disclosed
filling
finely
finely porous
fluid
fluid separation
followed
gas
immiscible
immiscible organic
improved
layer
liquid
membranes
membranes useful
miscible solvents
organic
organic liquid
permeable membrane
permeable membranes
pores
porous
porous layer
prepared
semipermeable
semipermeable membrane
semipermeable membranes
separation
separation membrane
separation membranes
separations
solvents
substantially
substantially fill
substantially filling
treatment
ultrathin-skinned
useful
vapor
water
water immiscible