Production of ophthalmic devices based on photo-induced step growth polymerization
US8609745B2 · kind B2 · utility
17Cited by
127References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Dec 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.