Asbestos-free diaphragm, comprising non-fibrous mineral particles, combination comprising same, method for obtaining same and use thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jul 10, 2003
app pub date -
Sep 13, 2002
filing date -
Dec 30, 1999
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
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.
First Claim
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International Classification(s)
- C25D:PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC ....
- C25C:PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVER....
- C25B:ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE ....
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- B23H:WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRA....
- C25F:PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIAL....
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