Contact lenses from highly permeable siloxane polyol material
US5648402A · kind A · utility
23Cited by
8References
7Claims
0Family size
Inventors
Key dates
| Filing date | Jun 1, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Jun 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides soft contact lenses adopted for placement over the cornea or in the eye which have a high oxygen permeability, a low water content and excellent mechanical properties. Moreover, the lenses of the instant invention have excellent protein and lipid deposition resistance relative to conventional contact lenses. Such lenses having the properties mentioned above comprises a prepolymer which contains an alkoxylate glucoside that is derivatized with at least one polysiloxane compound. The prepolymer is then placed in a suitable mold and polymerized by exposure to ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.