Ultraviolet radiation absorbing polyethers
US9758618B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymer composition comprising a linear ultraviolet radiation absorbing polyether that comprises a chemically bound UV-chromophore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.