UV-Photoprotective cosmetic compositions comprising polymer particulates/fatty phases having unique refractive indices
US5932194A · kind A · utility
33Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1998 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Mar 4, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Topically applicable cosmetic/dermatological composition well suited for improved photoprotection of human keratinous substrates, for example human skin and/or hair, comprise (a) an aqueous phase, (b) at least one fatty phase having a refractive index n.sub.1, (c) an effective UV-photoprotecting amount of at least one water-soluble UV-screening active agent, and (d) particulates of at least one non-film- forming polymer having a refractive index n.sub.2, and the refractive indices n.sub.1, and n.sub.2 being selected such that: EQU .vertline.n.sub.2 -n.sub.1 .vertline..ltoreq.0.07.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.