Hydroxyethyl cellulose derivatives containing pendant (meth)acryloyl units bound through urethane groups and hydrogel contact lenses made therefrom
US5157093A · kind A · utility
39Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | May 9, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention relates to methacrylate functionalized hydroxyethyl cellulose which is crosslinked with conventional vinylic monomers to form soft hydrogel contact lenses possessing high oxygen permeability, wettability, and mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.