Polymerizable absorbers of UV and high energy visible light
US11046636B2 · kind B2 · utility
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Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jul 22, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described are polymerizable high energy light absorbing compounds of formula I: Wherein Y, Pg, R1, R2, R3, R4, R5, and R6 are as described herein. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.