Method to produce a polytetra-fluoroethylene diaphragm
US4380521A · kind A · utility
9Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1980 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Sep 22, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B13/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The method of the present invention produces a porous, electrolyte permeable polytetrafluoroethylene diaphragm with a thickness of about 5 to about 100 mils and an average pore size of about 0.1 to about 100 microns. This diaphragm is suitable for use in an electrolytic diaphragm cell adapted to electrolytically form chlorine and an alkali metal hydroxide from an aqueous alkali chloride solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.