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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
CPC分类号: B01D53/228 , B01D71/52 , B01D71/76
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.