Sunscreen emulsion composition and method of use
US6517816B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Dec 26, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/066
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There is provided a sunscreen emulsion composition. The composition has an inner discontinuous phase and an outer continuous phase. The inner discontinuous phase and/or outer continuous phase has a sunscreen active therein. The inner discontinuous phase is generally dispersed in the outer continuous phase and is in the form of discrete droplets having a multimodal droplet size distribution. There is also provided a method of protecting skin from overexposure to the sun in which the above composition is applied topically to the skin. There is also provided a method of enhancing the performance of a sunscreen emulsion by forming the inner discontinuous phase as a multiplicity of droplets having a multimodal droplet size distribution. There is also provided a method of preparing an emulsifier-free sunscreen composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.