Organosilane coating composition for ophthalmic lens
US5385955A · kind A · utility
88Cited by
6References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1992 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Nov 5, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/111
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A radiation-curable coating composition for ophthalmic lens is disclosed which comprises a mixture of a monoepoxysilane, colloidal silica, an alkylalkoxysilane or tetraalkoxysilane, and an ultraviolet activated photoinitiator capable of initiating a cationic cure of such composition. The photoinitiator is an aromatic onium salt or an iron arene salt complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.