Crosslinked polymers and refractive devices formed therefrom
US6767979B1 · kind B1 · utility
71Cited by
9References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2001 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F246/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer is formed of ethylenically unsaturated monomers including a zwitterionic monomer, an aromatic monomer and a cross-linking monomer. Preferably the crosslinking monomer includes at least one a group containing compound and at least one aliphatic group containing compound. The polymer is water-swellable and a hydrogen has optical and mechanical properties rendering it suitable for use as an intraocular refractive device such as an intraocular lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.