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US 8,048,972 B2Granted
Nanohybrid polymers for ophthalmic applications
AssigneeKey Medical Technologies, Inc.
InventorsKhalid Mentak, Anthony Keslinke, Kevin Phan
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Abstract
The present invention relates to novel materials particularly useful for ophthalmic applications and methods for making and using the same. More particularly, the present invention relates to relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and using the same.
Claims2
A method of making a high refractive index copolymer comprising the steps of:
- a) providing a composition comprising:
- a high refractive index monomer selected from the group consisting of vinylcarbazole, vinylnaphthalene, and mixture thereof;
- a hydrophobic monomer;
- a hydrophilic monomer;
- and a crosslinker;
- b) mixing the monomer for a time period of at least 20 minutes at about room temperature;
- c) sonicating the mixture of monomers for a time period of at least 10 minutes at about room temperature to produce copolymer nanoclusters in substantially hydrophobic matrix.
4 more elements
Dependencies are inferred from the claim text.