Self adapting polymers for anhydrous sunscreen formulations
US10729625B2 · kind B2 · utility
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3References
9Claims
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Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/54
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions comprising sun-care actives and self adapting polymers are disclosed. Self adapting polymers align themselves with the hydrophilic group pointing to the surface during application thus delivering an aesthetically pleasing surface to the consumers with a pleasant after feel. These polymers then rearrange upon contact with water so that the hydrophobic groups now point to the surface which then increases the water resistance of the formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.