Photoprotective/cosmetic compositions comprising UV-A and/or UV-B sunscreens and polymers compatible therewith
US5607664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/413
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise (i) a photoprotecting effective amount of at least one organic or inorganic UV screen, or mixture thereof, and (ii) at least one polymer compatible therewith, said at least one polymer comprising recurring structural units of the following formula (I) and recurring structural units of the following formulae (II) and/or (III): ##STR1## in a cosmetically acceptable vehicle, diluent or carrier therefor which comprises a continuous aqueous phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.