Filter element
US6224765A · kind A · utility
15Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1997 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Jan 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/023
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element includes a bundle of hollow fiber type separation membranes made of a natural or synthetic macromolecular material and a sealed part made of a thermoplastic resin. The bundle has an opening in at least one terminal part thereof. The sealed part is bonded to the bundle at a temperature not higher than the melting or decomposing temperature of the macromolecular material and adapted to seal watertightly the opening of the bundle in a half-bonded state showing no compatibility with the macromolecular material and permitting persistence of the mutual interface of bondage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.