Multicomponent gas separation membranes having polyphosphazene coatings
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United States of America Patent
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Mar 1, 1988
Grant Date -
N/A
app pub date -
Dec 28, 1983
filing date -
Dec 28, 1983
priority date (Note) -
Expired
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Abstract
Multicomponent membranes for gas separation having polyphosphazene coatings in occluding contact with a porous separation membrane are disclosed which are effective for separating at least one gas from gaseous mixtures and which exhibit improved stability when exposed to aromatic and aliphatic hydrocarbons contained in the gaseous mixtures. In addition multicomponent membranes for gas separations having a polyphosphazene coating in occluding contact with a porous separation membrane of polar material are disclosed which exhibit relative preferential permeation of polar gases from mixtures containing polar and non-polar gases.
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