Hollow fiber membranes with fusion-bonded end portions
US4980060A · kind A · utility
8Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1988 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Jul 12, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/845
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element comprising porous hollow fiber filter membranes arranged in a lengthwise direction and fusion-bonded together at one or both of their respective end portions to form a unified terminal block which has through-holes communicating with the hollows of the remaining unbonded portions of the membranes and having diameters substantially the same as the inner diameters of the membranes. The filter element not only is excellent in resistance to heat and chemicals, but also can realize an efficient filtration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.