Hydroxyphenyl phenanthrolines as polymerizable blockers of high energy light
US10723732B2 · kind B2 · utility
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described are high energy light blocking compounds and ophthalmic devices containing the compounds. In particular, described are hydroxyphenyl phenanthroline structures with polymerizable functionality that block high energy light and are visibly transparent. The hydroxyphenyl phenanthroline structures can be incorporated into ophthalmic devices, such as hydrogel contact lenses, to protect eyes from high energy light radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.