Multi-lamellar liquid crystal emulsion system
US7754775B2 · kind B2 · utility
6Cited by
8References
15Claims
0Family size
Inventors
Key dates
| Filing date | Apr 23, 2004 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Topical cosmetic and pharmaceutical oil-in-water emulsions wherein an emulsifier blend, comprising a mixture of at least two sucrose esters in combination with at least one solid fatty alcohol, forms a multi-lamellar liquid crystalline network that effectively moisturizes and protects the skin, and provides a useful vehicle for delivery of active ingredients. Sucrose esters are used in emulsions of the present invention at very low concentrations (from about 0.2 % to about 1.2 % by combined weight of sucrose esters relative to the total weight of the emulsion).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.