Fibrous media containing millimicron-sized particulates
US4488969A · kind A · utility
45Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Dec 6, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/28052
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-supporting fibrous matrix containing immobilized therein at least about 5% by weight of microparticulate, with an average diameter less than 1 micron, preferably fumed silica, or alumina, and flocculating amounts of an organic polycationic resin and an organic polyanionic resin, is useful for fluid treatment and filtration processes, especially delipidization and depyrogenation of fluids such as serum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.