Filter membrane and method of manufacturing it
US4698157A · kind A · utility
34Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1985 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Aug 5, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter membrane for filtering liquid food stuffs or hot gases and including at least one filter layer. The membrane is constituted by a sintered inorganic material comprising grains which are fixedly connected to one another and the average roughness of the surface of said filter layer over a distance along said surface equal to at least five times the average grain size is less than one fifth of the average grain size in the region in question.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.