Film degassing system
US6596058B2 · kind B2 · utility
20Cited by
21References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flow-through vacuum degassing unit for degassing a mobile phase in liquid chromatography applications includes a relatively flat self-supporting thin membrane disposed in a compact degassing component, whereby the thin membrane is gas-permeable and liquid-impermeable to selectively degas a mobile phase. The self-supporting thin membrane is disposed on a permeable substrate through which a vacuum is drawn by a connected vacuum source. In a particular embodiment, the self-supporting membrane may be directly cast on the permeable substrate through a solvent-free thermal process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.