High refractive index monomers for optical applications
US7297810B2 · kind B2 · utility
10Cited by
20References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2004 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Apr 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention includes optical coatings containing ultraviolet curable monomers employing a bromine substituted fluorene structure. The fluorene backbone of the monomers of the present invention may also be functionalized with one or more polymerizable or reactive functionalities, and most readily at the 9 position. Compositions of the present invention include the reactive bromosubstituted fluorenes combined with inorganic nanoparticles, particularly nanoparticles with reactive surface modifiers exhibiting polymerizable functionality. Reactive high index nanoparticles such as surface modified zirconia are contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.