Acidic composition based on lipid vesicles and its use in topical application
US5804216A · kind A · utility
30Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition containing a dispersion of lipid vesicles with an aqueous core and/or of lipid vesicles with an oily core. At least one acidic compound is present in the dispersion in an amount which is sufficient to impart a pH of less than 5 to the composition. The lipid membrane of the vesicles with an aqueous core does not contain: PA1 (a) acidic amphiphilic lipids PA1 (b) or non-hydrogenated soya lecithin in the presence of glycerol in the dispersion. The composition is stable and may be stored for several months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.