EP 1537165 A1 20050608 - POLYMER FILM BASED ON POLYAZOLES, AND USE THEREOF
Title (en)
POLYMER FILM BASED ON POLYAZOLES, AND USE THEREOF
Title (de)
POLYMERFOLIE AUF BASIS VON POLYAZOLEN UND DEREN VERWENDUNG
Title (fr)
FILM POLYMERE A BASE DE POLYAZOLES ET SON UTILISATION
Publication
Application
Priority
- DE 10239701 A 20020829
- EP 0309020 W 20030814
Abstract (en)
[origin: DE10239701A1] Production of proton-conducting polymer membranes comprises (a) producing a mixture of polyphosphoric acid, polyazole(s) and/or compound(s) forming polyazoles on heating in step (b), (b) heating the mixture under inert gas up to 400 degrees C; (c) applying a layer of the mixture from (a) and/or (b) to a substrate; and (d) treating the resultant membrane, the novelty is that (d) uses a hydrolysis liquid comprising phosphorus and/or sulfur oxyacid(s). Independent claims are also included for the following: (1) proton-conducting polymer membrane produced by this process, which has a phosphoric acid concentration not less than 85 wt.% at a breaking stress of not less than 30 kJ/m2; (2) proton-conducting polymer membrane comprising phosphoric acid, polyazole(s) and monomer(s) (I) capable of free radical polymerization and having phosphonic and/or sulfonic acid groups, in which the weight ratio of the sum of phosphoric acid, polyphosphoric acid and polyphosphoric acid hydrolysis products to (I) is at least 1:2.
IPC 1-7
IPC 8 full level
B01D 53/22 (2006.01); B01D 61/02 (2006.01); B01D 61/14 (2006.01); B01D 61/24 (2006.01); B01D 61/46 (2006.01); B01D 71/62 (2006.01); C08G 73/06 (2006.01); C08G 73/18 (2006.01); C08G 73/22 (2006.01); C08J 5/18 (2006.01); C08L 79/06 (2006.01); D01F 6/74 (2006.01)
CPC (source: EP KR US)
B01D 71/62 (2013.01 - EP US); C08G 73/06 (2013.01 - EP US); C08G 73/0616 (2013.01 - EP US); C08G 73/0627 (2013.01 - EP US); C08G 73/0633 (2013.01 - EP US); C08G 73/0688 (2013.01 - EP US); C08G 73/0694 (2013.01 - EP US); C08G 73/18 (2013.01 - EP KR US); C08G 73/22 (2013.01 - EP US); C08J 5/18 (2013.01 - KR); C08J 5/22 (2013.01 - KR); C08L 79/06 (2013.01 - EP US); D01F 6/74 (2013.01 - EP US); B01D 2323/225 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Citation (search report)
See references of WO 2004024797A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 10239701 A1 20040311; CA 2496593 A1 20040325; CN 1297588 C 20070131; CN 1678663 A 20051005; EP 1537165 A1 20050608; JP 2005537380 A 20051208; KR 20050043924 A 20050511; US 2005256296 A1 20051117; US 7795372 B2 20100914; WO 2004024797 A1 20040325
DOCDB simple family (application)
DE 10239701 A 20020829; CA 2496593 A 20030814; CN 03820427 A 20030814; EP 0309020 W 20030814; EP 03794875 A 20030814; JP 2004535087 A 20030814; KR 20057003473 A 20050228; US 52559005 A 20050524