Silicone hydrogel contact lenses
US9296159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/0025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Silicone hydrogel contact lenses that are derived from a polymerizable composition including at least one siloxane monomer and at least one hydrophobic ethylene glycol methyl ether methacrylate-containing monomer, or at least one hydrophilic vinyl ether-containing monomer, or both, wherein, when the at least one hydrophobic ethylene glycol methyl ether methacrylate-containing monomer is present in the polymerizable composition, it is present in an amount of from 1 to 20 unit parts by weight, and when the at least one hydrophilic vinyl ether-containing monomer is present in the polymerizable composition, it is present in an amount of from 1 to 20 unit parts by weight, are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.