POROUS MEMBRANE AND POROUS MEMBRANE LAMINATE

• Main Authors: CHINO, Kanako, HASHIMOTO, Takamasa, FUKUNAGA, Atsushi, KATAYAMA, Hirokazu, TSUJIWAKI, Hiroyuki
• Format: Patent
• Language: English; French; Japanese
• Published: 27.07.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

A porous membrane according to the present disclosure is composed mainly of polytetrafluoroethylene, wherein the mean flow pore size E is 75 nm or less, and the pore size difference G-E between the maximum pore size G and the mean flow pore size E is not more than 20 nm. Une membrane poreuse selon la présente invention est composée principalement de polytétrafluoroéthylène, la taille moyenne de pore d'écoulement E étant inférieure ou égale à 75 nm, et la différence de taille de pore G-E entre la taille de pore maximale G et la taille moyenne de pore d'écoulement E n'étant pas supérieure à 20 nm. 本開示に係る多孔質膜は、ポリテトラフルオロエチレンを主成分とする多孔質膜であって、平均流量孔径Ｅが７５ｎｍ以下であり、最大孔径Ｇと前記平均流量孔径Ｅとの孔径差Ｇ－Ｅが２０ｎｍ以下である。