EP 0880400 A1 19981202 - COMPOSITE MEMBRANE WITH A SUPPORT MEMBRANE MADE, IN PARTICULAR OF MICROPOROUS MATERIAL
Title (en)
COMPOSITE MEMBRANE WITH A SUPPORT MEMBRANE MADE, IN PARTICULAR OF MICROPOROUS MATERIAL
Title (de)
KOMPOSITMEMBRAN AUS EINER INSBESONDERE MIKROPORÖSEN TRÄGERMEMBRAN
Title (fr)
MEMBRANE COMPOSITE A MEMBRANE SUPPORT, EN PARTICULIER A MEMBRANE SUPPORT MICROPOREUSE
Publication
Application
Priority
- DE 9700133 W 19970124
- DE 19603420 A 19960131
Abstract (en)
[origin: DE19603420C1] The invention concerns a composite membrane made up of a support membrane of, in particular, microporous material plus, attached, to it, an active layer. The active layer is made from at least one originally water-soluble cellulose derivative which is rendered water-insoluble, in particular by cross-linking it with a dialdehyde. The composite membrane proposed is particularly suitable for use in separating water vapour from mixtures of gases.
IPC 1-7
IPC 8 full level
B01D 53/22 (2006.01); B01D 53/26 (2006.01); B01D 69/12 (2006.01); B01D 71/22 (2006.01)
CPC (source: EP US)
B01D 53/228 (2013.01 - EP US); B01D 53/268 (2013.01 - EP US); B01D 69/125 (2013.01 - EP US); B01D 71/22 (2013.01 - EP US); Y10T 428/249978 (2015.04 - EP US); Y10T 428/249991 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
DE 19603420 C1 19970522; EP 0880400 A1 19981202; US 6277483 B1 20010821; WO 9727934 A1 19970807
DOCDB simple family (application)
DE 19603420 A 19960131; DE 9700133 W 19970124; EP 97914083 A 19970124; US 12629798 A 19980730