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Title: Asymmetric gas separation membranes

Patent ·
OSTI ID:5838708

Asymmetric gas separation membranes of materials having selective permeation of at least one gas of a gaseous mixture over that of one or more remaining gases of the gaseous mixture, exhibit significantly improved permeation selectivities for the at least one gas when the asymmetric membrane is contacted on one or both surfaces with an effective amount of a Lewis acid. The improved asymmetric gas separation membranes, process for producing the improved membrane, and processes utilizing such membranes for selectively separating at least one gas from a gaseous mixture by permeation are disclosed.

Assignee:
Monsanto Company
Patent Number(s):
US 4486202
OSTI ID:
5838708
Resource Relation:
Patent File Date: Filed date 30 Jun 1983; Other Information: PAT-APPL-509613
Country of Publication:
United States
Language:
English