Method of preparing membranes from blends of polymers

Details Method of preparing membranes from blends of polymers Method of preparing membranes from blends of polymers

1997-09-04

1999-06-08

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264102, 264178F, 264184, 2642091, 264559, 264561, 264562, 264563, D01D 5247

Patent

active

059102748

ABSTRACT:
Improved anisotropic fluid separation membranes are prepared from blends of polymers with surface energy differences. The membranes are formulated by processes wherein low surface energy polymer with desirable fluid separation and permeation characteristics is preferentially concentrated in the surface discriminating layer of the membrane.

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patent: 5443728 (1995-08-01), Macheras et al.
"Preparing of Hollow Fiber Membranes from Polyetherimide for Gas Separation", Kneifel & Peinemann, Journal of Membrane Science, 65 (1992) pp. 295-307.

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