Liquid personal cleansing compositions which contain an encapsulated lipophilic skin moisturizing agent comprised of relatively large droplets
US5932528A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Liquid personal cleansing compositions which comprise from about 1% to about 35% of encapsulated lipophilic skin moisturizing agents, from about 0.1% to about 5% of a stabilizer, from about 5% to about 30% of a lathering surfactant and water are disclosed. The encapsulated lipophilic skin moisturizing agent comprises a lipophilic skin moisturizing agent encapsulated within a complex coascervate comprising a polycation and a polyanion. The lipophilic skin moisturizing agent comprises droplets having a particle size distribution such that at least about 10% by weight of the droplets have a diameter of at least about 100 microns. The encapsulated lipophilic skin moisturizing agent is essentially free of cross-linking agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.