HOLLOW POROUS MEMBRANE

A hollow porous membrane including a porous membrane layer having a hole on an outer surface, wherein a membrane thickness of the porous membrane layer is 70 µm or more, and the porous membrane layer has a region A, the correlation between a depth X (µm) and an average pore size Y (µm) of holes on a...

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Bibliographic Details
Main Authors HINENOYA TAKASHI, TAKAHASHI SHUSAKU, TERAMACHI MASASHI
Format Patent
LanguageEnglish
French
German
Published 17.08.2016
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:A hollow porous membrane including a porous membrane layer having a hole on an outer surface, wherein a membrane thickness of the porous membrane layer is 70 µm or more, and the porous membrane layer has a region A, the correlation between a depth X (µm) and an average pore size Y (µm) of holes on a cutting plane at the depth X (µm) satisfies a regression line Y = aX + b in the case of cutting an outer surface of the porous membrane layer by the depth X (µm) in the region A, a slope a of the regression line is 0 < a ‰¤ 0.08 and a coefficient of determination R 2 of the regression line is 0.90 or more, and a, b, and R 2 are determined by the following Equations (2'), Equation (3'), and Equation (4'), respectively.
Bibliography:Application Number: EP20140851900