Process for solubilizing polyanoinic bacterial polysaccharides in aprotic solvents
US4963534A · kind A · utility
19Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | May 19, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0003
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for rendering a bacterial polysaccharide soluble in aprotic solvents by exchanging the calcium counterion of a polysaccharide calcium salt for tetra-n-alkylammonium ion by precipitation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.