Separation agent comprising acyl- or carbamoyl-substituted polysaccharide
US5489387A · kind A · utility
5Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1995 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Feb 17, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B31/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Separation of a chemical substance is effected by treating a mixture thereof with a polysaccharide having a substituent for hydroxyl group an acyl group of the formula (1) or a carbamoyl group of the formula (2): ##STR1## wherein R represents an atomic group having a nucleus comprising a conjugated .pi.-bond system in which the number of bonds interposed between an atom contained therein and bonded with the carbonyl or amino group and an atom contained in the .pi.-bond system and most distant from said atom is at least 5 even in the shortest route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.