EP 0412916 B1 19941207 - Diaphragm comprising asbestos fibres, association of such a diaphragm with a cathodic element and process of manufacture.
Title (en)
Diaphragm comprising asbestos fibres, association of such a diaphragm with a cathodic element and process of manufacture.
Title (de)
Asbestfasern enthaltendes Diaphragma, Verbindung eines solchen Diaphragmas mit einem Kathodenelement und Herstellungsverfahren.
Title (fr)
Diaphragme comprenant des fibres d'amiante, association d'un tel diaphragme à un élément cathodique et procédé d'obtention.
Publication
Application
Priority
FR 8910937 A 19890810
Abstract (en)
[origin: EP0412916A1] Diaphragms comprising asbestos fibres for electrolysis cells, use of such diaphragms in combination with a cathodic member and a process for obtaining such diaphragms and combination of such diaphragms with a cathodic member, by a wet route. <??>The invention relates more particularly to a microporous diaphragm capable of being formed in situ by a wet route, comprising an asbestos-based fibrous sheet whose fibres are microconsolidated by a fluoropolymer, the whole being sintered, the said sheet containing essentially from 3 to 35% by weight of fluoropolymer, binding the fibres, from 1 to 50% by weight of a gel of oxohydroxide of at least one metal from groups IVA, IVB, VB and VIB of the Periodic Classification or of the lanthanide and actinide series, from 20 to 95% by weight of fibres, the asbestos fibres representing at least 1% by weight of the said fibres, and its optional use in combination with a precathodic sheet. <??>These diaphragms and combinations can be employed especially in chlorine-soda electrolysis cells.
IPC 1-7
IPC 8 full level
C08J 5/22 (2006.01); C25B 1/46 (2006.01); C25B 9/08 (2006.01); C25B 9/19 (2021.01); C25B 13/04 (2006.01); C25B 13/06 (2006.01); D04H 1/42 (2006.01); D04H 1/54 (2006.01); D04H 1/58 (2006.01); D21H 13/42 (2006.01); D21H 17/67 (2006.01)
CPC (source: EP KR US)
C25B 1/46 (2013.01 - KR); C25B 13/02 (2013.01 - KR); C25B 13/04 (2013.01 - EP US); C25B 13/06 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0412916 A1 19910213; EP 0412916 B1 19941207; AT E115199 T1 19941215; AU 6026390 A 19910214; AU 627917 B2 19920903; BR 9003917 A 19910903; CA 2023031 A1 19910211; CN 1049385 A 19910220; DD 297192 A5 19920102; DE 69014764 D1 19950119; DE 69014764 T2 19950518; ES 2067712 T3 19950401; FR 2650842 A1 19910215; FR 2650842 B1 19920117; GR 3015218 T3 19950531; JP H03107491 A 19910507; JP H0653942 B2 19940720; KR 0126912 B1 19980406; KR 910004876 A 19910329; RU 2070232 C1 19961210; US 5092977 A 19920303; US 5320867 A 19940614
DOCDB simple family (application)
EP 90420362 A 19900731; AT 90420362 T 19900731; AU 6026390 A 19900807; BR 9003917 A 19900809; CA 2023031 A 19900809; CN 90106756 A 19900808; DD 34336090 A 19900809; DE 69014764 T 19900731; ES 90420362 T 19900731; FR 8910937 A 19890810; GR 950400422 T 19950228; JP 21359490 A 19900809; KR 900012312 A 19900810; SU 4831026 A 19900809; US 56534490 A 19900810; US 80231991 A 19911204