Hydrogel with internal wetting agent
US6367929B1 · kind B1 · utility
335Cited by
41References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A wettable silicone hydrogel made by including a high molecular weight hydrophilic polymer into the silicone hydrogel monomer mix is presented. The hydrophilic polymer is entrapped in the hydrogel with little or no covalent bonding between it and the hydrogel matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.