Polysulfonamide matrices
US6837996B2 · kind B2 · utility
21Cited by
51References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Apr 19, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B15/0089
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sulfonamide polymer matrices and their various uses are disclosed. Among the uses is the configuration of the matrix with a porous support membrane to form a semipermeable membrane of the invention. The matrix of the invention is ultrathin, dense and substantially free of defects. The matrix configuration as the semipermeable membrane shows improved permeate flux and retention values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.