Physical solar filter consisting of substituted hydroxyapatite in an organic matrix
US10813856B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Mar 6, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/84
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for the protection against solar radiation, consisting of an organic matrix, preferably a gelatin, and hydroxyapatite nanoparticles modified by the substitution of part of the phosphorus with titanium, and part of the calcium with iron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.