Cosmetic and pharmaceutical compositions containing niosomes and a water-soluble polyamide, and a process for preparing these compositions
US4830857A · kind A · utility
34Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1985 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Oct 21, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a composition consisting of a dispersion in an aqueous medium D of niosome and/or liposome spherules, within which an aqueous phase E is encapsulated, at least one portion of the spherules being niosomes; the lipids forming spherules constituting from 2 to 10% of the weight of the composition; in at least one of the phases E and D there is dissolved at least one water-soluble polyamide polymer having a molecular weight between 1,000 and 200,000, at a concentration of 0.01 to 5% by weight relative to the total weight of the composition. Usable in cosmetics or pharmaceuticals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.