Vapor permselective membrane
AssigneeAsahi Glass Company, Limited
InventorsMakoto Nakao, Yoshio Sugaya, Hiroshi Mori, Hirofumi Horie, Hirokazu Wakabayashi
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Abstract
A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6N, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, the ion exchange membrane having a thickness of from 0.1 to 300 .mu.m and a moisture content of from 1 to 10% by weight, the permselective membrane having a water vapor permeation rate of at least 50 m.sup.3 /m.sup.2.atm.
Claims15
A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6 meq/g H.sub.2 O, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, said ion exchange membrane having a thickness of from 0.1 to 300 .mu.m and a moisture content of from 1 to 10% by weight, said permselective membrane having a water vapor permeation rate of at least 50 m.sup.3 /m.sup.2.atm.
Dependencies are inferred from the claim text.