Hollow composite fibers selectively permeable to water vapor

Details Hollow composite fibers selectively permeable to water vapor Hollow composite fibers selectively permeable to water vapor

1987-07-28

1990-02-13

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

21050023, 210506, 428376, 55 16, 55 68, D01D 3908, D02G 300

Patent

active

049006266

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.

REFERENCES:
patent: 3871950 (1975-03-01), Hashino et al.
patent: 4214020 (1980-07-01), Ward et al.
patent: 4230463 (1980-10-01), Henis et al.
patent: 4405688 (1983-09-01), Lowery et al.
patent: 4670341 (1987-06-01), Lundsager
patent: 4689267 (1987-08-01), Takamizawa et al.

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