Global Patent Index - EP 1554032 A2

EP 1554032 A2 20050720 - PROTON CONDUCTING POLYMER MEMBRANE COMPRISING PHOSHPHONIC ACID GROUPS CONTAINING POLYAZOLES AND THE USE THEREOF IN FUEL CELLS

Title (en)

PROTON CONDUCTING POLYMER MEMBRANE COMPRISING PHOSHPHONIC ACID GROUPS CONTAINING POLYAZOLES AND THE USE THEREOF IN FUEL CELLS

Title (de)

PROTONENLEITENDE POLYMERMEMBRAN UMFASSEND PHOSPHONSÄUREGRUPPEN ENTHALTENDE POLYAZOLE UND DEREN ANWENDUNG IN BRENNSTOFFZELLEN

Title (fr)

MEMBRANE POLYMERE CONDUCTRICE DE PROTONS COMPRENANT DES POLYAZOLES CONTENANT DES GROUPES ACIDE PHOSPHONIQUE ET UTILISATION DE CETTE MEMBRANE DANS DES PILES A COMBUSTIBLE

Publication

EP 1554032 A2 20050720 (DE)

Application

EP 03775169 A 20031002

Priority

  • DE 10246459 A 20021004
  • EP 0310906 W 20031002

Abstract (en)

[origin: WO2004033079A2] The invention relates to proton-conducting polymer membranes comprising phosphonic acid groups containing polyazoles, which can be obtained according to a method comprising the following steps: A) one or several aromatic and/or heteroaromatic tetra amino compounds are mixed with one or several several aromatic and/or heteroaromatic carboxylic acids or the derivatives thereof containing at least two acidic groups per carboxylic monomer, wherein at least one part of the tetra amino compounds and/or carboxylic acids comprises at least one phosphonic acid group, or one or several aromatic and/or heteroaromatic diaminocarboxylic acids, of which at least one part comprises phosphonic acid groups, are mixed in polyphosphonic acid to form a solution and/or dispersion, B) the solution and/or dispersion obtained according to step A is heated in an inert gas to temperatures of up to 350 DEG C to form polyazole polymers, C) a layer is applied to a carrier, using the mixture according to step A and/or B, the membrane formed in step C is treated until it becomes self-supporting.

IPC 1-7

B01D 71/62; C08G 73/18; C08J 5/22; H01M 8/10; H01M 8/02

IPC 8 full level

B01D 71/62 (2006.01); B01D 71/82 (2006.01); C08G 73/18 (2006.01); H01M 8/10 (2006.01)

CPC (source: EP KR US)

B01D 71/62 (2013.01 - EP KR US); B01D 71/82 (2013.01 - EP US); C08G 73/18 (2013.01 - EP KR US); C08J 5/22 (2013.01 - KR); H01M 8/1027 (2013.01 - EP US); H01M 8/103 (2013.01 - EP US); H01M 8/1044 (2013.01 - EP US); H01M 8/1048 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)

Citation (search report)

See references of WO 2004033079A2

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)

WO 2004033079 A2 20040422; WO 2004033079 A3 20040923; CA 2500514 A1 20040422; CN 100556934 C 20091104; CN 1726071 A 20060125; DE 10246459 A1 20040415; EP 1554032 A2 20050720; JP 2006501991 A 20060119; JP 4450734 B2 20100414; KR 20050073477 A 20050713; US 2006008690 A1 20060112; US 7736778 B2 20100615

DOCDB simple family (application)

EP 0310906 W 20031002; CA 2500514 A 20031002; CN 200380100918 A 20031002; DE 10246459 A 20021004; EP 03775169 A 20031002; JP 2004542403 A 20031002; KR 20057005878 A 20050404; US 53000205 A 20050822