Cellulosic polymer, blood-treating device, and process for producing the same
US5486606A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1993 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | May 4, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B15/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cellulosic polymer wherein at least a part of the hydroxyl groups of the cellulosic polymer is modified as represented by the following general formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom or a C.sub.1 to C.sub.5 alkyl group, X is a strong negative atomic group, and Y is ##STR2## wherein R.sup.3 and R.sup.4 may be the same or different and each represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group and a C.sub.3 to C.sub.6 cycloalkyl group, or ##STR3## Y is wherein R.sup.5, R.sup.6 and R.sup.7 may be the same or different and each represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group, a C.sub.3 to C.sub.6 cycloalkyl group and a C.sub.6 to C.sub.10 aryl group, and n is from 1 to 10. Using the cellulosic polymer, a blood-treating device is assembled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.