Fully polymerized UV blocking silicone hydrogel lens
US8807745B2 · kind B2 · utility
11Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A substantially fully copolymerized UV blocking hydrogel lens demonstrating sufficient blocking of UV light to meet at least FDA Class II specifications for UV blocking formed from a reaction mixture comprising at least NVP and one other comonomer and a free-radical polymerizable, substituted or unsubstituted, Bis O-hydroxy benzophenone is provided herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.