Wettable hydrogels comprising reactive, hydrophilic, polymeric internal wetting agents
US7249848B2 · kind B2 · utility
121Cited by
31References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Sep 30, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydrogel contact lenses comprising at least one oxygen permeable component, and an amount of reactive, hydrophilic polymeric internal wetting agent sufficient to impart wettability to said device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.