HYDROPHILIC FLUOROPOLYMER
    3.
    发明申请
    HYDROPHILIC FLUOROPOLYMER 有权
    水解氟聚合物

    公开(公告)号:US20160002413A1

    公开(公告)日:2016-01-07

    申请号:US14653406

    申请日:2013-12-17

    Abstract: The present invention pertains to a process for the manufacture of a grafted fluoropolymer [polymer (Fg)], said process comprising reacting: A) at least one fluoropolymer comprising at least one functional group selected from the group consisting of a hydroxyl group and a carboxylic acid group [polymer (F)], B) at least one polyoxyalkylene (POA) of formula (I): RB—(CH2—O)x—(CH2CHRAO)n—(CH2—O)x′—RC, wherein at least one of RB and RC is a reactive group comprising at least one heteroatom selected from oxygen and nitrogen different from the hydroxyl group, the remaining, if any, being a —[O]z—CH3 alkyl group, wherein z is 0 or 1, RA is a hydrogen atom or a C1-C5 alkyl group, x and x′, equal to or different from each other, are independently 0 or 1, and n is an integer comprised between 2 and 1000, preferably between 5 and 200, C) optionally, in the presence of at least one catalyst, and D) optionally, in the presence of at least one organic solvent (S). The present invention also pertains to grafted fluoropolymers obtained from said process and to uses of said grafted fluoropolymers for manufacturing porous membranes.

    Abstract translation: 本发明涉及一种制备接枝氟聚合物[聚合物(Fg)]的方法,所述方法包括使A)至少一种含至少一种选自羟基和羧基的官能团的含氟聚合物 酸性基团[聚合物(F)],B)至少一种式(I)的聚氧化烯(POA):RB-(CH 2 -O)x - (CH 2 CHRAO)n - (CH 2 -O)x'-RC, RB和RC中的至少一个是包含至少一个选自不同于羟基的氧和氮的杂原子的反应性基团,剩余的(如果有的话)是 - [O] z-CH 3烷基,其中z是0或1 RA为氢原子或C 1 -C 5烷基,x和x'彼此相同或不同,独立地为0或1,n为2〜1000,优选为5〜200的整数, C)任选地,在至少一种催化剂的存在下,和D)任选地,在至少一种有机溶剂(S)的存在下。 本发明还涉及从所述方法获得的接枝的含氟聚合物以及所述接枝的含氟聚合物用于制造多孔膜的用途。

    COMPOSITION AND METHOD FOR MANUFACTURING SULFONE POLYMER MEMBRANE

    公开(公告)号:US20190054429A1

    公开(公告)日:2019-02-21

    申请号:US16084756

    申请日:2017-03-14

    Abstract: The invention pertains to a polyaryl ether sulfone polymer solution [solution (SP)] comprising: —at least one sulfone polymer [polymer (PSI)] having recurring units, wherein more than 50% moles, with respect to all the recurring units of polymer (PSI), are recurring units (RPSI) selected from the group consisting of those of formulae (RPSI-1) and (RPSI-2) herein below: (RPSI-1) (RPSI-2) wherein: —each of E′, equal to or different from each other and at each occurrence, is selected from the group consisting of those of formulae (E′-1) to (E′-3): (E′-I) (E′-II) (E′-III) —each R′ is independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; and —j′ is zero or an integer of 1 to 4; is a bond or a divalent group optionally comprising one or more than one heteroatom; preferably T is selected from the group consisting of a bond, —CH2—, —C(O)—, —C(CH3)2—, —C(CF3)2—, —C(═CCI2)—, —C(CH3)(CH2CH2—COOH)—, and a group of formula: (A) —at least one polar organic solvent [solvent (S)]; and —at least one mixture of polyhydroxyl aliphatic alcohols having from 1 to 6 carbon atoms or derivatives thereof [mixture (PHA)], said mixture (PHA) comprising at least one ethylene glycol compound [compound (EthyGly)] and at least one glycerol compound [compound (Gly)], to its use for manufacturing membranes, and to membranes obtained therefrom.

    PROCESS FOR MANUFACTURING FLUOROPOLYMER MEMBRANES

    公开(公告)号:US20160243506A1

    公开(公告)日:2016-08-25

    申请号:US15028594

    申请日:2014-05-23

    Abstract: 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).

Patent Agency Ranking