Process for preparing an aqueous composition in gel form and compositions obtainable from this process, especially a composition containing vesicles, in particular liposomes
US6288137A · kind A · utility
5Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1997 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | May 12, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/075
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention concerns a process for preparing an aqueous composition in the form of a gel at a given temperature. The process is characterized in that an associative water-soluble polymer constituted by a hydrophilic main chain and hydrophobic pendant groups is brought into the presence, in said composition, of at least one surfactant in the form of bilayers when it is in aqueous solution under the same temperature and concentration conditions. Compositions in the form of gels or liquids are thus obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.