Gas separation membrane
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorAkira Ito
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Abstract
The present invention relates to a gas separation membrane comprising as a main component a polyacetal, wherein the polyacetal contains 1.5 to 10 mol of an oxyalkylene unit based on 100 mol of an oxymethylene unit. The gas separation membrane of the present invention has high carbon dioxide gas separating ability and high permeability rate to carbon dioxide gas and is advantageously used as a separation membrane for carbon dioxide gas contained in exhaust gas.
Claims8
A gas separation membrane comprising as a main component a polyacetal, wherein the polyacetal comprises 1.5 to 10 mol of an oxyalkylene unit having 2 or more carbon atoms based on 100 mol of an oxymethylene unit.
Dependencies are inferred from the claim text.