Photoprotective/cosmetic compositions comprising substituted polyorganosiloxanes/polyorganosilanes
US5663270A · kind A · utility
13Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- 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 a photoprotecting effective amount of a novel benzotriazole-substituted polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent benzotriazole radical bonded directly to a silicon atom and having the formula (4): ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.