Rotary filtration device with hyperphilic membrane
US5000848A · kind A · utility
86Cited by
22References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rotary filtration device having at least two members, one at least partially within the other to define a fluid gap therebetween, is disclosed. One or more filters are located on one or more of the members facing the fluid gap. Sufficient uncharged hydrophilic polar groups, preferably uncharged substituted amide groups, are located on the surface of the filter to render the surface hydrophilic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.