High temperature polymer filtration medium
US7374796B2 · kind B2 · utility
6Cited by
35References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2631
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter medium for use in particulate filtering applications is disclosed. The filter medium is formed from a substrate capable of retaining the desired physical structure of the filter medium under the conditions of the filtering application, including temperature. A polyimide based stiffening agent adapted for treating the substrate is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.