Hydroxyphenyl naphthotriazoles as polymerizable blockers of high energy light
US10526296B2 · kind B2 · utility
1Cited by
109References
15Claims
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- 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 naphthotriazole structures with polymerizable functionality that block high energy light and are visibly transparent. The hydroxyphenyl naphthotriazole 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.