Process for preparing an aqueous composition in gel form and compositions obtainable from this process, especially a composition containing vesicles, in particular liposomes
US6469084B2 · kind B2 · utility
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2References
50Claims
0Family size
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Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Apr 30, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1272
- 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.