Plastic and nonmetallic article shaping or treating: processes – Treating shaped or solid article
Patent
1995-06-06
1999-02-09
Yamnitzky, Marie
Plastic and nonmetallic article shaping or treating: processes
Treating shaped or solid article
427230, 4274301, 95 45, 96 4, 4283044, B01D 6700, B01D 7106
Patent
active
058689923
ABSTRACT:
A process for improving the permselectivity of polymeric gas separation membranes is disclosed. The process involves contacting the membrane with a fluorocarbon, such as fluorinated ethers, perferably perfluorinated compounds, or a solution of a fluorocarbon and a caulking agent.
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L'Air Liquide S.A.
Russell Linda K.
Yamnitzky Marie
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