Production of aromatic polyimide membranes

Details Production of aromatic polyimide membranes Production of aromatic polyimide membranes

Filed on

1989-10-10

Date issued

1991-01-08

Examiner

Spitzer, Robert

Patent Class

Gas separation

SubClass

Means within gas stream for conducting concentrate to collector

Other Related Categories

55 16, 21050039, 264184, B01D 5322, B01D 7164

Type

Patent

Status

active

Patent number

049831917

Description

ABSTRACT:
A process of producing a polyimide gas separation membranes comprising adding an oligomeric or polymeric aromatic epoxy resin to the dope solution, the resin being soluble in the polyimide or polyamic acid precursor, the solvent and the final membrane and the membrane comprising a blend of the polyimide and the resin.

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Cabasso et al., "Research and Development of NS-1 and Related Polysulfone Hollow Fibers for Reverse Osmosis Desalination of Seawater", (NTIS PB-248666, 7/1975).

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