High water content ophthalmic devices
US10816698B2 · kind B2 · utility
0Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Dec 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An ophthalmic device is disclosed which is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more first non-silicone-containing hydrophilic monomers; (b) one or more hydrophobic monomers; and (c) a crosslinking agent mixture comprising (i) one or more di-, tri- or tetra(meth)acrylate-containing crosslinking agents and (ii) one or more di-, tri- or tetracarbamate-containing crosslinking agents, wherein the ophthalmic device has an equilibrium water content of at least about 65 weight percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.