MEMBRANES POUR LA SEPARATION SELECTIVE GAZEUSE
    1.
    发明授权
    MEMBRANES POUR LA SEPARATION SELECTIVE GAZEUSE 有权
    膜气体分离SELECTIVEN

    公开(公告)号:EP1322409B1

    公开(公告)日:2007-12-05

    申请号:EP01972150.5

    申请日:2001-09-12

    IPC分类号: B01D71/52 B01D53/22

    摘要: The invention concerns a membrane for selective gas separation. The membrane consists of an ethylene oxide copolymer or a polymeric material obtained by crosslinking such a copolymer. Said copolymer is characterised in that it consists of at least 30 % in number of -CH2CH2O- units derived from ethylene oxide, and at least 2 % in number of -CHR-CH2O- units derived from an oxirane bearing a crosslinkable substituent R and/or of -CHR1-CH2O- units derived from an oxirane bearing a non-crosslinkable substituent R1. The membranes are particularly useful for separating hydrophilic gases contained in a gas mixture.