发明名称 |
PROCESS FOR MANUFACTURING FLUOROPOLYMER MEMBRANES |
摘要 |
The present invention pertains to a process for manufacturing a fluoropolymer membrane, said process comprising the following steps: (i) providing a composition [composition (C)] comprising, preferably consisting of: at least one fluoropolymer [polymer (F)], a water-soluble liquid medium [medium (Mws)] comprising, preferably consisting of at least one solvent selected from the group consisting of diesters of formula (I-de), esteramides of formula (I-ea) and diamides of formula (I-da); R1 (O═)CO-Ade-OC(═O)R2 (I-de) R1O(O═)C-Aea-C(═O)NR3R4 (I-ea) R5R6N(O═)C-Ada-C(═O)NR5R6 (I-da) wherein: R1 and R2, equal to or different from each other, are independently selected from the group consisting of C1-C20 hydrocarbon groups; R3, R4, R5 and R6, equal to or different from each other, are independently selected from the group consisting of hydrogen, C1-C36 hydrocarbon groups, possibly substituted, being understood that R3, R4, R5 and R6 might be part of a cyclic moiety including the nitrogen atom to which they are bound, said cyclic moiety being possibly substituted and/or possibly comprising one or more than one additional heteroatoms, Ade is a C3-C10 divalent alkylene group comprising one or more ether oxygen atoms, Aea and Ada, equal to or different from each other, are independently C3-C10 divalent alkylene groups, optionally comprising one or more ether oxygen atoms and/or one or more functional side groups; (ii) processing the composition (C) at a temperature of at least 100° C. thereby providing a film; (iii) cooling the film provided in step (ii) to a temperature below 50° C.; (iv) contacting the film provided in step (iii) with a non-solvent medium [medium (M NS)] thereby providing a fluoropolymer membrane; and (v) optionally, drying the fluoropolymer membrane provided in step (iv). |
申请公布号 |
US2016243506(A1) |
申请公布日期 |
2016.08.25 |
申请号 |
US201415028594 |
申请日期 |
2014.05.23 |
申请人 |
SOLVAY SPECIALTY POLYMERS ITALY S.P.A. |
发明人 |
SANGUINETI Aldo;DI NICOLO' Emanuele;LEE Young Moo;DRIOLI Enrico;CUI Zhaoliang;HASSANKIADEH Naser Tavajohi;LEE Suk Young |
分类号 |
B01D71/34;B01D69/06;H01M2/14;H01M2/16;H01M10/0525;B01D67/00;B01D69/04 |
主分类号 |
B01D71/34 |
代理机构 |
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代理人 |
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主权项 |
1. A process for manufacturing a fluoropolymer membrane, said process comprising:
(i) processing a composition (C) at a temperature of at least 100° C. thereby providing a film, wherein composition (C) comprises:
at least one fluoropolymer [polymer (F)],a water-soluble liquid medium (MWS) at least one solvent selected from the group consisting of diesters of formula (I-de), esteramides of formula (I-ea) and diamides of formula (I-da):
R1(O═)CO-Ade-OC(═O)R2 (I-dc)R1O(O═)C-Aea-C(═O)NR3R4 (I-ea)R5R6N(O═)C-Ada-C(═O)NR5R6 wherein:
R1 and R2, equal to or different from each other, are independently selected from the group consisting of C1-C20 hydrocarbon groups;R3, R4, R5 and R6, equal to or different from each other, are independently selected from the group consisting of hydrogen, optionally substituted C1-C36 hydrocarbon groups R2 and R4 optionally form a cyclic moiety including the nitrogen atom to which they are bound, and wherein R5 and R6 optionally form a cyclic moiety including the nitrogen atom to which they are bound, wherein each cyclic moiety is optionally substituted and/or optionally comprises one or more than one additional heteroatoms,Ade is a C3-C10 divalent alkylene group comprising one or more ether oxygen atoms,Aea and Ada, equal to or different from each other, are independently C3-C10 divalent alkylene groups, optionally comprising one or more ether oxygen atoms and/or one or more functional side groups; cooling the film to a temperature below 50° C. to form a cooled film; contacting the cooled film with a non-solvent medium (MNS) thereby providing a fluoropolymer membrane; and optionally, drying the fluoropolymer membrane. |
地址 |
Bollate (MILANO) IT |