Porous fluoropolymeric fibrous sheet and method of manufacture
US4127706A · kind A · utility
95Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1975 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Sep 29, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/29
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing a porous sheet product which comprises the step of introducing a spinning liquid comprising an organic fibre forming polymeric material into an electric field whereby fibres are drawn from the liquid to an electrode and collecting the fibres so produced upon the electrode. PTFE and other fluorinated polymer mats produced by the electrostatic process are useful as electrolytic cell diaphragms, battery separators etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.