Cellulose dialysis membrane with improved biocompatibility
US4772393A · kind A · utility
6Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Aug 4, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a dialysis membrane of regenerated cellulose and to a process for its production. Isocyanate prepolymers with an average molecular weight of 300 to 50,000, which are soluble in organic solvents other than solvents reacting with isocyanate groups and dissolving cellulose, are bound chemically at least to one membrane surface of the dialysis membrane. The dialysis membrane of the present invention substantially eliminates the symptoms of leukopenia and complement activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.