FLUORINE-BASED POROUS MEMBRANE AND MANUFACTURING METHOD THEREFOR

The present invention relates to a fluororesin porous film in which, based on the total thickness of the fluororesin porous film composed of a single 5µm to 300µm layer, a thickness ratio of nodes distributed on any one surface shows a difference of 5 % or more compared to a thickness ratio of nodes...

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Bibliographic Details
Main Authors YOON, Kyunghwan, PARK, Sei Jung, YOO, Han Sol, AHN, Byeong In
Format Patent
LanguageEnglish
French
German
Published 17.06.2020
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The present invention relates to a fluororesin porous film in which, based on the total thickness of the fluororesin porous film composed of a single 5µm to 300µm layer, a thickness ratio of nodes distributed on any one surface shows a difference of 5 % or more compared to a thickness ratio of nodes distributed on the other surface forming the remaining part, a method for preparing the same, and a vent filter including the porous film.
Bibliography:Application Number: EP20180871269