Hollow-fiber membrane
AssigneeSumitomo Electric Industries, Ltd.
InventorHiroki MIYATA
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Abstract
A hollow-fiber membrane according to an aspect of the present disclosure includes a porous, tubular filtration layer containing polytetrafluoroethylene as a main component and having a fibrous skeleton. A mean pore diameter in an outer peripheral surface of the filtration layer is smaller than a mean pore diameter in an inner peripheral surface of the filtration layer. A ratio of the mean pore diameter in the inner peripheral surface to the mean pore diameter in the outer peripheral surface is 2.0 or more and 5.0 or less.
Claims7
A hollow-fiber membrane comprising a porous, tubular filtration layer containing polytetrafluoroethylene as a main component and having a fibrous skeleton,
- wherein a mean pore diameter in an outer peripheral surface of the filtration layer is smaller than a mean pore diameter in an inner peripheral surface of the filtration layer, and
- a ratio of the mean pore diameter in the inner peripheral surface of the filtration layer to the mean pore diameter in the outer peripheral surface of the filtration layer is 2.0 or more and 5.0 or less.
Dependencies are inferred from the claim text.