Polyimide amic acid salts and polyimide membranes formed therefrom
US6716270B2 · kind B2 · utility
7Cited by
20References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2003 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Jan 23, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to preparation and uses of novel polymeric materials, polyimide amic acid salts (PIAAS). The use of these materials for the fabrication of fluid separation membranes is further disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.