Hollow composite fibers selectively permeable to water vapor
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United States of America Patent
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Feb 13, 1990
Grant Date -
N/A
app pub date -
Jul 28, 1987
filing date -
Jul 28, 1987
priority date (Note) -
Expired
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Abstract
Selectively permeable, hollow composite fibers, well adapted for the dehumidification of air or carbon dioxide, are comprised of (a) an asymmetric, hollow, polymeric base fiber including both dense and porous component layers, and (b) a polymer layer coated onto the dense layer of said asymmetric hollow base fiber.
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