Expanded solid composition whose matrix comprises a starch-based cellular network and which contains expanded thermoplastic hollow particles and its uses in topical application
US5925380A · kind A · utility
7Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1996 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | May 29, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to expanded solid compositions whose matrix comprises a cellular network formed from a starch-rich product and contains at least some expanded thermoplastic hollow particles of polymer or copolymer of an ethylenically unsaturated monomer or mixture of such monomers. These compositions constitute new dosage forms for cosmetic or dermatological use. These compositions either take the form of expanded cylinders, pellets, leaves or flakes, or the form of powder. When reduced to the powder state, they may also be used as a make-up or hygiene composition to be rehydrated or to be used as such.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.