Non-aerosol/aerosol dispensing of sunscreen sprays comprising spherical porous silica microparticles
US8420062B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jun 3, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Nonaerosol/atomizer pumps or aerosol dispensers comprise (A) a reservoir confining at least one vaporizable sunscreen composition suited for UV-photoprotecting the skin and/or hair against the damaging effects of UV radiation, the at least one vaporizable sunscreen composition comprising (1) a UV-photoprotecting amount of at least one UV-sunscreen and (2) an SPF-enhancing amount of generally spherical silica microparticles, formulated into (3) a topically applicable, cosmetically acceptable carrier therefor, and (B) at least one agent for pressurizing the at least one vaporizable sunscreen composition into a spray of fine sunscreen particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.