High refractive index polymeric siloxysilane compositions
US7169874B2 · kind B2 · utility
37Cited by
17References
17Claims
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Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Nov 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more siloxysilane monomers or the copolymerization of one or more siloxysilane monomers with one or more aromatic or non-aromatic non-siloxy monomers, hydrophobic monomers or hydrophilic monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.