Concentrated liquid solutions of scleroglucan
US5215681A · kind A · utility
6Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to new concentrated liquid solutions of polysaccharides, characterized in that they are prepared by ultrafiltration of a dilute solution of polymer to which a surface-active agent has been added. The solutions can be employed, after dilution, in particular as a thickening agent for aqueous fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.