Sprayable composition containing zinc oxide and a fluoro-olefin propellant
US11007151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2015 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Feb 11, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/26
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A sprayable zinc oxide composition is provided. The sprayable zinc oxide composition can be used in the treatment of various skin conditions. The sprayable zinc oxide composition includes zinc oxide particles and a fluoro-olefin propellant. The present inventors have found that by selecting a propellant having a certain specific gravity, vapor pressure, and molecular weight, and by controlling the viscosity of the various components of the composition, the resulting zinc oxide composition resists settling such that a substantially homogeneous distribution of zinc oxide particles is maintained and can be evenly sprayed onto a surface without running once applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.