Process for separation of sulfated glycosaminoglycans
US5116966A · kind A · utility
0Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Jan 3, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for purifications of natural or synthetic polymers in solution, water-soluble or soluble in water-alcohol medium and comprising sulfate groups, the process consisting essentially, on the one hand, of a selective precipitation in which the sulfated polymers to be purified are complexed in acid medium with a polyamine insoluble at a pH greater than 7 and, on the other hand, after isolation of the complex thus formed, of a progressive solubilizing of the sulfated polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.