Visible-light photoinitiators and uses thereof
US10324311B2 · kind B2 · utility
6Cited by
33References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Apr 22, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/54
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Described herein are acyl germanium photoinitiator for cost-effective and time-efficient method for producing UV-absorbing contact lenses capable of blocking ultra-violet (“UV”) radiation and optionally (but preferably) violet radiation with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV radiation and potentially from violet radiation. This invention also provides a method for making UV-absorbing contact lenses made by using an acyl germanium photoinitiator of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.