Global Patent Index - EP 1242655 A1

EP 1242655 A1 2002-09-25 - ASBESTOS-FREE DIAPHRAGM, COMPRISING NON-FIBROUS MINERAL PARTICLES, COMBINATION COMPRISING SAME, METHOD FOR OBTAINING SAME AND USE THEREOF

Title (en)

ASBESTOS-FREE DIAPHRAGM, COMPRISING NON-FIBROUS MINERAL PARTICLES, COMBINATION COMPRISING SAME, METHOD FOR OBTAINING SAME AND USE THEREOF

Title (de)

NICHT-FASERIGE MINERALTEILCHEN ENTHALTENDES DIAFRAGMA, VERBINDUNG EINES SOLCHEN DIAFRAGMAS UND DESSEN HERSTELLUNG UND VERWENDUNG

Title (fr)

DIAPHRAGME EXEMPT D'AMIANTE, COMPRENANT DES PARTICULES MINERALES NON FIBREUSES, ASSOCIATION LE COMPRENANT, SON OBTENTION ET SON UTILISATION

Publication

EP 1242655 A1 (FR)

Application

EP 00990842 A

Priority

  • FR 0003732 W
  • FR 9916752 A

Abstract (en)

[origin: FR2803309A1] The invention concerns a microporous diaphragm obtainable by filtering through a porous support, an aqueous dispersion free of asbestos fibres and titanate fibres, comprising organic fibres, at least a binding agent selected among halogenated polymers, at least a pore-forming agent and mineral particles with non-fibrous structure. The invention also concerns a combination comprising said diaphragm and a fibrous mat obtainable by filtration deposit through a porous support of a dispersion comprising fibres whereof part is electrically conductive, at least a binding agent selected among halogenated polymers, at least an electrolytic agent, at least a pore-forming agent. The invention further concerns the preparation of the diaphragm and the combination, and the use thereof to obtain an alkali metal hydroxide solution by electrolysis of aqueous alkali metal halide solutions.

IPC 1-7 (main, further and additional classification)

C25B 13/04

IPC 8 full level (invention and additional information)

C25B 13/04 (2006.01)

CPC (invention and additional information)

C25B 13/04 (2013.01)

Citation (search report)

See references of WO 0149902A1

Designated contracting state (EPC)

AT BE CH DE FR LI NL

EPO simple patent family

FR 2803309 A1 20010706; FR 2803309 B1 20020503; AU 3030301 A 20010716; BR 0016804 A 20020910; CA 2396047 A1 20010712; EP 1242655 A1 20020925; RU 2002120187 A 20040327; US 2003127321 A1 20030710; WO 0149902 A1 20010712

INPADOC legal status


2005-02-16 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040615

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH DE FR LI NL

2004-03-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040202

2002-09-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020612

2002-09-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI