Sunscreen compositions containing an ultraviolet radiation-absorbing polymer
US9737470B2 · kind B2 · utility
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63References
7Claims
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Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/596
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions including a discontinuous oil phase homogeneously dispersed in a continuous water phase, the oil phase containing a sunscreen agent that includes a polymer composition containing a linear, ultraviolet radiation absorbing polyether, the linear, ultraviolet radiation absorbing polyether including a chemically bound UV-chromophore; and an oil-in water emulsifier component including an anionic oil-in-water emulsifier in an amount such that the composition includes about 0.5 percent by weight to about 3 percent by weight of the anionic oil-in-water emulsifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.