Silicone hydrogels comprising N-alkyl methacrylamides and contact lenses made thereof
US11754754B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Aug 17, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.